Suction wand for a hand vacuum cleaner and hand vacuum cleaner

Abstract

This application discloses a vacuum cleaner handle and a handheld vacuum cleaner. The first end of the vacuum cleaner handle is used to connect to the vacuum cleaner's suction component. A dust collection interface is formed between the first and second ends of the vacuum cleaner handle, and this interface is used to connect to the main unit of the handheld vacuum cleaner, allowing the main unit to rotate around the dust collection interface. A suction channel is formed inside the vacuum cleaner handle, connecting the dust collection interface and the suction component. The vacuum cleaner handle of this application allows the main unit to be rotated and connected to different positions, making it suitable for various usage environments.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a dust collection rod of a handheld dust collector and the handheld dust collector. BACKGROUND

[0002] The working principle of a dust collector is to form a vacuum inside, and dust is sucked into the dust collector under the action of air pressure difference, so as to achieve the purpose of cleaning. A handheld dust collector is operated by a user holding it, and dust is cleaned.

[0003] Currently, a part of the main machine of the handheld dust collector is fixed at the upper end of the dust collector, which is at a high position of the main machine. The center of gravity of the handheld dust collector is upward, and most of the weight needs to be supported by the user, which is laborious to use. In addition, the handheld dust collector cannot be placed upright stably. Another part of the main machine of the handheld dust collector is fixed at the lower end of the dust collector, which is at a low position of the main machine. The center of gravity of the handheld dust collector is downward. Although the user does not need to use much effort, the handheld dust collector can be placed upright. However, the main machine at the lower end affects the dust cleaning in a small space. SUMMARY

[0004] The present application provides a dust collection rod of a handheld dust collector to solve the technical problem of inconvenience in cleaning caused by the main machine connected to the dust collection rod being able to be arranged only at a single position in the existing handheld dust collector.

[0005] To solve the above technical problem, the present application provides a dust collection rod of a handheld dust collector. The first end of the dust collection rod is used to connect a dust collection part of the handheld dust collector. A dust collection interface is formed between the first end and the second end of the dust collection rod. The dust collection interface is used to connect a main machine of the handheld dust collector, so that the main machine can be rotated around the dust collection interface as a rotating center. A dust collection channel is formed in the dust collection rod, which communicates with the dust collection interface and the dust collection part.

[0006] According to an embodiment of the present application, a second damping part is arranged on the dust collection rod, which interacts with a first damping part on the main machine to generate a rotating resistance during rotation of the main machine.

[0007] According to an embodiment of the present application, the first damping part is a damping ring, a plurality of damping grooves are arranged on the surface of the damping ring and spaced apart from each other, and the plurality of damping grooves surround the dust collection interface. The second damping part is a damping pin, which is elastically connected to the dust collection rod and embedded in the damping grooves.

[0008] According to an embodiment of the present application, a female fixing part is arranged on the dust collection rod, and the female fixing part and the dust collection interface are used to fix the main machine between the second end and the dust collection interface.

[0009] According to an embodiment of the present application, the female fixing member comprises a fixing block, a fixing groove is formed on the fixing block, and an elastic pin is arranged in the fixing groove; the fixing groove is used for embedding the male fixing member on the main machine, and the elastic pin is used for clamping the male fixing member.

[0010] According to an embodiment of the present application, the elastic pin comprises a spring and a spherical pin connected to the spring.

[0011] According to an embodiment of the present application, the dust collection interface is fixedly arranged on the dust collection rod and is used for being rotatably connected to the main machine; or the dust collection interface is rotatably arranged on the dust collection rod and is used for being fixedly connected to the main machine.

[0012] According to an embodiment of the present application, the dust collection interface is rotatably connected to the main machine, and the connection between the dust collection interface and the main machine is in a cylindrical shape; or the dust collection interface is rotatably connected to the dust collection rod, and the connection between the dust collection interface and the dust collection rod is in a cylindrical shape.

[0013] According to an embodiment of the present application, the long axis of the dust collection rod is parallel to the cross section of the cylindrical connection.

[0014] According to an embodiment of the present application, the difference between the first distance from the dust collection interface to the first end and the second distance from the dust collection interface to the second end is less than or equal to a preset value.

[0015] According to an embodiment of the present application, the dust collection rod comprises a dust collection section and an operation section connected to each other, and the dust collection interface and the dust collection channel are both formed in the dust collection section.

[0016] According to an embodiment of the present application, the length difference between the dust collection section and the operation section is less than or equal to 20 cm.

[0017] According to an embodiment of the present application, the dust collection channel comprises a vertical channel connected to the dust collection member and a horizontal channel connected to the dust collection interface, and the connection between the vertical channel and the horizontal channel is a round corner connection.

[0018] According to an embodiment of the present application, the first end is formed with a plug-in structure for detachably plugging with the dust collection member.

[0019] According to an embodiment of the present application, the second end is formed with a hand holding part, the hand holding part is provided with an operation switch, and the operation switch is signal connected to the main machine.

[0020] To solve the above technical problems, the present application provides a handheld dust collector, which comprises a dust collection member, a dust collection rod, and a main machine.

[0021] The first end of the dust collection rod of the handheld dust collector is connected with a dust collection part of the handheld dust collector; a dust collection interface is formed between the two ends of the dust collection rod, and the dust collection interface is used to connect a main machine of the handheld dust collector, so that the main machine can be rotated around the dust collection interface as a rotating center part; a dust collection channel is formed in the dust collection rod, and the dust collection channel is communicated with the dust collection interface and the dust collection part. The main machine can be rotated to different positions of the dust collection rod, and can be correspondingly applied to different use environments. For example, when the main machine is rotated to a high position of the dust collection rod, dust collection in a narrow space is facilitated, and when dust collection at a high position of a ceiling is performed, more labor is saved; the main machine can also be rotated to a low position of the dust collection rod, and more labor is saved when the ground is cleaned, and the center of gravity is low, which is beneficial to stable upright placement of the handheld dust collector. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a schematic view of a cross section structure of the main machine shown in

[0024] Figure 2 is a schematic view of a cross section structure of the main machine shown in Figure 1

[0025] Figure 3 is a schematic view of an electric connector and a fixing part of the main machine shown in Figure 1

[0026] Figure 4 is a schematic view of a cross section structure of the main machine shown in Figure 1

[0027] Figure 5 is a first schematic view of a three-dimensional structure of the dust collection rod in the handheld dust collector of the embodiment of the present application;

[0028] Figure 6 is a second schematic view of a three-dimensional structure of the dust collection rod shown in Figure 5

[0029] Figure 7 is a schematic view of a cross section structure of the dust collection rod shown in Figure 5

[0030] Figure 8 is a schematic view of a limiting part of the dust collection rod shown in Figure 5

[0031] Figure 9 is a schematic view of a three-dimensional structure of the handheld dust collector of the embodiment of the present application;​​​​​​

[0032] Figure 10 is Figure 9 a cross-sectional structural schematic diagram of the handheld dust collector shown in FIG. 1;

[0033] Figure 11 is Figure 9 a structural schematic diagram of the connection between the dust collection interface and the dust box interface in the handheld dust collector shown in FIG. 1;

[0034] Figure 12 is Figure 9 a structural schematic diagram of the connection between the electrical connector and the electrode in the handheld dust collector shown in FIG. 1;

[0035] Figure 13 is Figure 9 a structural schematic diagram of the connection between the fixing member and the limiting member in the handheld dust collector shown in FIG. 1;

[0036] Figure 14 is Figure 9 a structural schematic diagram of the dust collection member in the handheld dust collector shown in FIG. 1;

[0037] Figure 15 is Figure 9 another structural schematic diagram of the dust collection member in the handheld dust collector shown in FIG. 1;

[0038] Figure 16 is another cross-sectional structural schematic diagram of the handheld dust collector of the present application;

[0039] Figure 17 is Figure 16 a structural schematic diagram of the air supply channel in the handheld dust collector shown in FIG. 1. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0041] Reference to“an embodiment” in this text means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. Those of ordinary skill in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0042] The handheld dust collector of the application comprises a main machine, a dust suction rod and a dust suction element. The main machine is a power element for dust suction and generates suction force. The dust suction element is an element for contacting the space to be cleaned, and dust is sucked into the dust suction element. The dust suction rod is a connecting rod between the dust suction element and the main machine, so as to facilitate the user to hold it. The main machine is the heaviest element in the handheld dust collector, and its position determines the stability of the upright placement of the handheld dust collector and the degree of effort of the user holding it. For example, the main machine can be located at a high position or a low position of the dust suction rod. When the main machine is located at the low position, the center of gravity of the handheld dust collector is low, which is beneficial to the stable upright placement of the handheld dust collector. When the main machine is located at the high position, it is convenient for dust suction in a narrow space, and it is also more labor-saving when dust suction is performed at a high position such as the ceiling.

[0043] The handheld dust collector of the application realizes that the main machine is located at different positions through the rotating structure of the main machine relative to the dust suction rod. For details, please refer to the accompanying drawings, in which Figures 1-4 is a structural schematic view of the main machine in the handheld dust collector, Figures 5-8 is a structural schematic view of the dust suction rod in the handheld dust collector, Figures 9-14 is a structural schematic view of the handheld dust collector.

[0044] Please participate Figures 1-4 The application proposes a main machine. The main machine 100 of the embodiment comprises a main machine shell 11, a dust collection box 12, a fan 13 and a battery 14. The dust collection box 12, the fan 13 and the battery 14 are sequentially arranged in the main machine shell 11 from the upper part to the lower part of the main machine 100.

[0045] The dust box interface 111 is arranged on the main machine shell 11 and is communicated with the dust collection box 12 in the main machine shell 11. The dust box interface 111 is communicated with the dust suction rod in the handheld dust collector to realize dust suction. That is, no matter where the main machine 100 moves relative to the dust suction rod, the dust box interface 111 needs to be communicated with the dust suction rod to realize dust suction. Therefore, in the embodiment, the main machine 100 rotates relative to the dust suction rod with the dust box interface 111 as the rotating center, and then can be rotated to different positions of the dust suction rod.

[0046] The dust box interface 11 is located at the upper part of the main machine 100, the dust collection box 12, the fan 13 and the battery 14 in the main machine 100 are sequentially arranged from the upper part to the lower part, and in the embodiment, the weights of the dust collection box 12, the fan 13 and the battery 14 increase sequentially. The center of gravity of the main machine 100 is low, so that the dust box interface 11 is arranged at the upper part, which can further ensure that the center of gravity of the main machine 100 is as low as possible when the main machine 100 is rotated to the low position of the dust suction rod, and the center of gravity of the main machine 100 is as high as possible when the main machine 100 is rotated to the high position of the dust suction rod.

[0047] The host 100 rotates around the dust box interface 111 as the rotation center part, and there are various rotating modes. The rotating modes are mainly divided into two modes, i.e., the dust box interface 111 rotates relative to the dust collection rod or does not rotate. For example, the dust box interface 111 is fixedly arranged on the host shell 11, and the dust box interface 111 is rotatably connected to the dust collection rod. Alternatively, the dust box interface 111 is rotatably arranged on the host shell 11, and the dust box interface 111 is fixedly connected to the dust collection rod.

[0048] In summary, in the host 100 in the embodiment, the dust box interface 111 is the rotation center part, that is, the dust box interface 111 is the rotation center part, the central axis of the rotation of the host 100 passes through the dust box interface 111, and the host 100 can rotate in the parallel plane of the long axis of the dust collection rod, that is, the rotation plane of the host 100 is parallel to the long axis of the dust collection rod. In some embodiments, the rotating connection part of the dust box interface 111 and the host shell 11 or the rotating connection part of the dust box interface 111 and the dust collection rod can be circular, the central axis of the rotation of the host 100 passes through the center of the circle, and the rotation plane formed by the host 100 is also parallel to the plane of the circle.

[0049] In the host 100 in the embodiment, the host 100 has a long axis from the upper part to the lower part, and the host 100 is a symmetrical structure such as a cylinder. Therefore, the long axis is the central axis, and the connection plane formed by the connection part of the dust box interface 111 and the dust collection rod is parallel to the long axis, so as to ensure that the host 100 does not tilt during rotation, that is, the distance between the host 100 and the dust collection rod remains unchanged during rotation.

[0050] Since the host 100 is heavy, it is not easy to control during rotation. Therefore, a damping structure is further arranged for the relative rotation of the host 100 and the dust collection rod. Specifically, a first damping member 15 is arranged on the host shell 11, and the first damping member 15 and a second damping member on the dust collection rod interact with each other to generate a rotation resistance during the rotation of the host 100 relative to the dust collection rod.

[0051] The first damping member 15 is specifically a damping ring, which is sleeved on the outer periphery of the dust box interface 111. A plurality of damping grooves 151 are arranged on the surface of the damping ring facing the dust collection rod, and the plurality of damping grooves 151 are arranged around the dust box interface 111. The second damping member is a damping pin, which is embedded in the damping groove 151. When the host 100 rotates, the damping ring rotates, and the embedded relationship between the damping pin and the damping groove 151 generates a certain rotation resistance.

[0052] In order to make the rotation have a certain resistance while also ensuring smoothness, the damping pin is in the shape of a circular ball and is elastically connected to the dust collection rod. The damping groove 151 is a circular ball groove, and the groove is arc-shaped to be smoothly connected to the plane.

[0053] The main machine 100 is stably connected to the dust collection rod. The main machine shell 11 is further provided with a sub-fixing part 112 located at the lower part of the main machine 100. The upper and lower parts of the main machine 11 are fixed to the dust collection rod through the dust box interface 111 and the fixing part 112 respectively. The sub-fixing part 112 can be a fixing column. Correspondingly, a female fixing part is arranged on the dust collection rod. The female fixing part includes a limiting block provided with a fixing groove. The fixing column can be embedded into the fixing groove. Further, an elastic pin can be arranged in the fixing groove. Correspondingly, a clamping groove is formed on the fixing column. The elastic pin is used to be clamped into the clamping groove of the fixing part 112 to fix the main machine 100.

[0054] The lower part of the main machine shell 11 of the embodiment is further formed with a waste hole 113. The fan 13 in the main machine 100 performs air extraction. Dust and air flow enter the dust collection box 12 through the dust collection part and the dust collection rod, and then pass through the fan 13 and the battery 14 and are finally discharged through the waste hole 113. The waste hole 113 is in a grid shape.

[0055] The battery 14 is arranged around the main machine shell 11 to form a hollow channel. The air flow passes through the battery 14 more smoothly. The air flow passing through the battery 14 can also play a role in heat dissipation of the battery 14.

[0056] The main machine 100 of the embodiment can rotate relative to the dust collection rod with the dust box interface 111 as the rotation center. That is, the main machine can be rotated to different positions of the dust collection rod, so as to adapt to different use scenarios of the dust collector. Specifically, the main machine can be rotated to a high position or a low position on the dust collection rod. The dust collection function is guaranteed. In the high position, narrow space dust collection and ceiling labor-saving dust collection are realized. In the low position, self-standing placement and ground labor-saving dust collection are realized.

[0057] Please refer to Figures 5-8 The application provides a dust collection rod. The second end of the dust collection rod 200 is provided with a hand-held part 21. The first end is used to connect a dust collection part of a hand-held dust collector. A dust collection interface 22 is formed between the two ends of the dust collection rod 200. The dust collection interface 22 is used to connect a main machine of the hand-held dust collector. A dust collection channel 23 is formed in the dust collection rod 200. The dust collection channel 23 is communicated with the dust collection interface 22 and the dust collection part.

[0058] The dust collection interface 22 of the embodiment enables the main machine to rotate with the dust collection interface 22 as the rotation center part. Then, the main machine can be rotated to different positions of the dust collection rod 200, so as to adapt to different use scenarios. For example, the main machine can be rotated to a first position and a second position. The first position is between the first end and the dust collection interface 22. The second position is between the second end and the dust collection interface 22. The main machine is rotated to the second position, that is, the high position of the dust collection rod 200. The main machine is rotated to the first position, that is, the low position of the dust collection rod 200.

[0059] In order to facilitate the connection of the host, the dust collection interface 22 is arranged on the side of the dust collection rod 200, the dust collection channel 23 includes a vertical channel 231 connected with the dust collection member and a horizontal channel 232 connected with the dust collection interface 22. The wind flow direction in the dust collection channel 23 changes in one direction. Since the dust collection channel 23 also needs to suck dust, the connection between the vertical channel 231 and the horizontal channel 232 is arranged as a round corner connection, which facilitates the flow of dust and the flow of wind, and avoids the deposition of dust in the corner.

[0060] The host is connected to the dust collection interface 22 and can be rotated to two positions of the dust collection rod 200 based on the dust collection interface 22, and when the host is rotated to the first and second positions, the host is substantially located between the first end and the dust collection interface 22 or between the second end and the dust collection interface 22. Therefore, the dust collection interface 22 is arranged in the middle of the dust collection rod 200, that is, the distance from the first end to the dust collection interface 22 is approximately the same as the distance from the second end to the dust collection interface 22, and is approximately equal to the length of the host. Such a design can make the length of the dust collection rod 200 optimal, that is, maximize the space utilization. In the embodiment, the difference between the distance from the first end to the dust collection interface 22 and the distance from the second end to the dust collection interface 22 is less than or equal to a preset value, which can be set to 5 cm in the embodiment. To ensure that the two distances are approximately the same.

[0061] In addition, the connection surface formed by the connection between the dust collection interface 22 and the host is parallel to the long axis of the dust collection rod, which ensures that the host will not be tilted relative to the dust collection rod 200 when it is rotated, that is, the distance between the host and the dust collection rod 200 remains unchanged when it is rotated.

[0062] Since the host is heavy and unstable when it is rotated, a second damping member 24 is further arranged on the dust collection rod 200 and located on the outer periphery of the dust collection interface 22. The second damping member 24 interacts with the first damping member on the host to generate a rotational resistance when the host is rotated relative to the dust collection rod 200.

[0063] The first damping member is a damping ring, which is sleeved on the outer periphery of the dust box interface and has a plurality of damping grooves arranged at intervals on the surface facing the dust collection rod. The second damping member 24 is a damping pin embedded in the damping groove. When the host is rotated, the damping ring rotates, and the embedded relationship between the damping pin and the damping groove generates a certain rotational resistance.

[0064] In order to make the rotation have a certain resistance while also ensuring smoothness, the damping pin is in the shape of a round ball and is elastically connected to the dust collection rod, and the damping groove is in the shape of a round ball groove and has an arc-shaped slot to be smoothly connected to the plane.

[0065] The dust collection rod 200 is further provided with a female fixing part 25. The female fixing part 25 and the dust collection interface 22 jointly enable the main machine to be fixed at the first position or the second position of the dust collection rod 200. In the embodiment, the female fixing part 25 is fixedly arranged on the dust collection rod 200 and is applied to the case that the main machine is fixed at the second position. In the embodiment, a female fixing part can be further arranged on the dust collection rod 200 or the dust collection part to be applied to the case that the main machine is fixed at the first position.

[0066] The female fixing part 25 can be fixedly arranged on the dust collection rod 200 or detachably arranged on the fixing part 200. In other embodiments, if the female fixing part 25 is in a detachable structure, the female fixing part 25 can be arranged at the first corresponding position to fix the main machine when the main machine is rotated to the first position, and the female fixing part 25 can be arranged at the second corresponding position to fix the main machine when the main machine is rotated to the second position.

[0067] The female fixing part 25 is specifically a fixing block, and a fixing groove 251 is formed on the fixing block. The direction of the fixing groove 251 corresponds to the rotating direction of the main machine, that is, when the main machine is rotated to the high position, the male fixing part on the main machine can be directly clamped in the fixing groove 251. The fixing groove 251 is further provided with an elastic pin 252, and the elastic pin 252 further clamps the male fixing part, so that the connection between the male fixing part and the female fixing part is more stable. The elastic pin 252 specifically includes a spherical pin and a spring connecting the spherical pin and the limiting groove 251.

[0068] The first end of the dust collection rod 200 is connected with the dust collection part, which is specifically a plug-in structure 27, and can be plug-in fixed with the dust collection part and is convenient to disassemble. When the user needs different dust collection parts, the dust collection part can be conveniently replaced.

[0069] The second end of the dust collection rod 200 is provided with a hand-held part 21, and the hand-held part 21 is further provided with an operation switch 26 to facilitate the control of the opening of the main machine. In the embodiment, the operation switch 26 is signal-connected with the main machine, and can be specifically wired communication-connected or wirelessly communication-connected, for example, the dust collection rod 200 is connected with the main machine through a wire, and a wireless communication module can be further arranged in the main machine, and the operation switch 26 is connected with the main machine through the wireless communication module to switch the main machine.

[0070] The dust collection rod 200 can be divided into a dust collection section 29 and an operation section 28, the dust collection interface 22 and the dust collection channel 23 are formed in the dust collection section 29, and the handheld part 21 and the operation switch 26 are formed in the operation section 28; the dust collection interface 22 is arranged close to the operation section 28, the lengths of the operation section 28 and the dust collection section 29 are approximately equal, in the embodiment, the length difference between the operation section 28 and the dust collection section 29 is set to be less than or equal to 20 cm. The operation section 28 does not need to be provided with an air duct, and the dust collection section 29 can only be provided with an air duct; if the operation switch 26 needs to be connected by a wire, the wire can only pass through the operation section, and the dust collection section 29 does not need to pass through the wire, and the dust collection channel 23 of the dust collection section 29 is provided with an electrical connection end to connect the main machine and the operation switch 26 of the operation section 28.

[0071] The dust collection interface 22 arranged on the dust collection rod 200 is used to connect the main machine, and the main machine can rotate around the dust collection interface 22 as the rotation center, so that the main machine can be rotated to different positions of the dust collection rod 200, and then be suitable for use in different scenes. Specifically, the main machine can be fixedly connected to a high position or a low position of the dust collection rod 200, to ensure the dust collection function, realize narrow space dust collection and ceiling labor-saving dust collection in the high position, and realize self-standing placement and ground labor-saving dust collection in the low position.

[0072] Please refer to Figures 9-14 The application provides a handheld dust collector, and the handheld dust collector 400 in the embodiment includes a main machine 100, a dust collection rod 200 and a dust collection part 300. The main machine 100, the dust collection rod 200 and the dust collection part 300 are sequentially communicated to realize dust collection and cleaning.

[0073] In the embodiment, the dust collection interface 22 on the dust collection rod 200 is located between the two ends of the dust collection rod 200, the main machine 100 can be rotated to different positions of the dust collection rod 200, that is, can be connected to the dust collection interface 22 in a high position of the dust collection rod 200 or can be connected to the dust collection interface 22 in a low position of the dust collection rod 200. In the high position, narrow space dust collection and ceiling labor-saving dust collection are realized, and in the low position, self-standing placement and ground labor-saving dust collection are realized.

[0074] Moreover, the main machine 100 only needs to rotate relative to the dust collection rod 200 around the dust collection interface 22 as the rotation center to realize conversion between the high position and the low position. Without disassembly and reinstallation, the user operation is facilitated, and the structural stability of the handheld dust collector 400 is beneficial.

[0075] The specific structures of the main machine 100 and the dust collection rod 200 have been described above, and will not be described again. The following mainly describes the cooperation relationship between the two.

[0076] The dust box interface 111 on the main machine 100 is connected to the dust collecting interface 22, and the rotation of the main machine 100 relative to the dust collecting rod 200 can be set by the relative rotation of the dust box interface 111 and the dust collecting interface 22, that is, the dust box interface 111 and the dust collecting interface 22 both serve as the rotation center of the main machine 100 relative to the dust collecting rod 200. Since the dust box interface 111 and the dust collecting interface 22 are connected to each other, the central axis of the rotation of the main machine 100 passes through the position where the dust box interface 111 and the dust collecting interface 22 are located. For example, in the present embodiment, the connection between the two interfaces is provided in a cylindrical shape and is inserted into each other, so that relative rotation can be achieved. The central axis of the rotation of the main machine 100 is the central axis of the cylinder.

[0077] To achieve rotation, the dust box interface 111 of the main machine 100 can also be rotatably arranged on the main machine shell 11. At this time, the connection between the dust box interface and the main machine shell 11 is provided in a cylindrical shape to achieve rotational connection. The dust box interface 111 and the dust collecting interface 22 can be fixedly connected, and the shape of the connection between the two interfaces can be any shape.

[0078] In addition, the dust collecting interface 22 can also be rotatably arranged on the dust collecting rod 200. The connection between the dust collecting interface 22 and the dust collecting rod 200 is provided in a cylindrical shape to achieve rotational connection. The dust box interface 11 of the main machine 100 is fixedly arranged, and the dust box interface 11 and the dust collecting interface 22 can be fixedly connected. The shape of the connection between the two interfaces can be any shape.

[0079] For a main machine 100 with a relatively heavy weight, if the rotation is too smooth, the problem of unstable rotation may occur. Therefore, a damping structure is arranged between the main machine 100 and the dust collecting rod 200, including a first damping member 15 arranged on the main machine 100 and a second damping member 24 arranged on the dust collecting rod 200.

[0080] The two damping members interact to form a rotational resistance. The specific structure is described above. In the present embodiment, the first damping member 15, which is a damping ring, can also be used as an auxiliary connecting structure of the dust box interface 111 and the dust collecting interface 22. Specifically, the damping ring is sleeved on the connection between the dust box interface 111 and the dust collecting interface 22, and a clamping groove 221 is formed on the outer periphery of the dust collecting interface 22. The inner periphery of the damping ring is provided with a clamping portion 152, which is clamped in the clamping groove 221 and can rotate in the clamping groove 221. The damping ring of this structure makes the connection between the dust box interface 111 and the dust collecting interface 22 more stable, and can also avoid the problem of air leakage at the connection between the two interfaces to a certain extent.

[0081] The host 100 is connected to the high or low position of the dust cleaning rod 200 after rotation, and the stable connection of the host 100 and the dust cleaning rod 200 is mainly through the fixing piece 112 on the host 100 and the first female fixing piece 25 on the dust cleaning rod 200, and the female fixing piece on the dust cleaning rod 200 or the dust cleaning piece 300. This embodiment is described by taking the second female fixing piece 321 arranged on the dust cleaning piece 300 as an example. If it is arranged on the dust cleaning rod 200, the same arrangement is also applicable.

[0082] The first female fixing piece 25 and the second female fixing piece 321 are used to be connected with the fixing piece 112. In this embodiment, the two structures are the same. If it is convenient for the arrangement of other elements, the two structures can also be different, as long as they can be connected with the fixing piece 112.

[0083] As described above, the first female fixing piece 25 and the second female fixing piece 321 both include a fixing block, a fixing groove is formed on the fixing block, an elastic pin is arranged in the fixing groove, the fixing piece 112 is a fixing column, a clamping groove 1121 is formed on the fixing column, when the fixing piece 112 is fixed in the first female fixing piece 25 and the second female fixing piece 321, the fixing column is embedded in the fixing groove, and the elastic pin is clamped in the clamping groove 1121.

[0084] In this embodiment, the fixing grooves of the first female fixing piece 25 and the second female fixing piece 321 are in the same direction, and when the host 100 rotates relative to the dust cleaning rod 200, it will only rotate half a circle to be fixed in the first female fixing piece 25 and the second female fixing piece 321, and the rotation is not easy to be disturbed.

[0085] The dust cleaning piece 300 is used to contact the dust cleaning space, which can be various structures, such as a floor brush structure (for example, Figure 14 ), a narrow tube structure (for example, Figure 15 ), etc. It is connected to the first end of the dust cleaning rod 200, and is specifically connected to the plug-in structure 27. In this embodiment, the dust cleaning piece 300 is detachably connected to the dust cleaning rod 200. In other embodiments, the dust cleaning piece 300 can also be non-detachably connected to the dust cleaning rod 200.

[0086] If the dust cleaning piece 300 is a floor brush structure, it includes a dust cleaning floor brush 31 and a floor brush connector 32 rotatably connected to the dust cleaning floor brush 31, and the dust cleaning rod 200 is connected to the floor brush connector 32. Thus, the dust cleaning rod 200 can rotate relative to the dust cleaning floor brush 31, thereby facilitating user operation.

[0087] The second electric connector 322 is arranged on the brush connector 32 and is electrically connected with the dusting brush 31. The first electric connector 16 is arranged on the main machine 100. When the main machine 100 is rotated to the low position of the dusting rod 200, the first electric connector 16 is connected to the second electric connector 322, and then the main machine 100 can supply power to the dusting member 300. On this basis, the dusting rod 200 does not need to be provided with an electric connection structure for the dusting member 300 in this embodiment. Only a dusting channel needs to be provided at the connection with the dusting member 300, which simplifies the structure of the dusting rod 200.

[0088] Specifically, the first electric connector 16 is specifically two elastic pins, and the second electric connector 322 is specifically two conductive sheets. The elastic pins and the conductive sheets are connected one by one. In addition, in this embodiment, the first electric connector 16 and the sub-fixing member 112 can be integrated together and are both arranged on the lower part of the main machine 100.

[0089] The electric driving structure of the dusting brush 31 in this embodiment includes a rolling brush and a driving motor for driving the rolling brush, and the second electric connector 322 is electrically connected with the driving motor; or the dusting brush 31 includes a jet nozzle and a jet fan for supplying air to the jet nozzle, and the second electric connector 322 is electrically connected with the jet fan.

[0090] The dusting brush 31 with the jet nozzle is more suitable for cleaning a carpet or a deep gap with dust, compared with the rolling brush, by spraying a jet to lift up the dust on the ground, and then facilitating dusting.

[0091] For the dusting brush with the jet nozzle, in addition to supplying air by the jet fan, air supply from the exhaust gas in the main machine 100 can also be utilized. The main machine 100 is provided with an exhaust port 17 which is communicated with the main machine shell 11. The air supply channel 323 which is communicated with the jet nozzle 311 is arranged in the brush connector 32. When the main machine 100 is rotated to the low position of the dusting rod 200, the exhaust port 17 is communicated with the air supply channel 323, and the exhaust gas in the main machine shell 11 is provided to the jet nozzle 324 through the air supply channel 323 from the exhaust port 17.

[0092] The main machine 100 is connected with the dusting rod 200 and can be rotated to the high position or the low position relative to the dusting rod 200, so that the user uses more labor-saving. The damping structure is arranged for rotation, which facilitates the stability of rotation. The limiting structure is arranged corresponding to the high position or the low position, which facilitates the main machine 100 to be fixedly connected to the dusting rod. When in the low position, the main machine 100 can directly supply power to the dusting member 300, and the structure of the dusting rod 200 can be more simple.

[0093] The terms "first", "second", "third", etc. in the present application are only used for descriptive purpose and cannot be construed as indicating or implying a quantity of technical features indicated. Thus, the features defined with "first", "second", "third" can include at least one of the features explicitly or implicitly. All directional indications (such as upper, lower, left, right, front, back, etc.) in the present application are only used for explaining the relative position relationship, movement condition, etc. between components, and if the specific posture (as shown in the drawings) changes, the directional indications also change accordingly. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to the process, method, product or device.

[0094] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A suction wand of a hand-held vacuum cleaner, characterized in that The first end of the dusting rod is used to connect the dusting part of the handheld dust collector; a dust collection interface is formed between the first end and the second end of the dusting rod, and the dust collection interface is used to connect the dust box interface of the main machine of the handheld dust collector, the main machine is rotatable relative to the dusting rod between the first end and the second end with the dust box interface as the rotation center part, and the dusting channel communicated with the dust collection interface and the dusting part is formed in the dusting rod.

2. Dusting wand according to claim 1, characterized in that A second damping part is arranged on the dusting rod and interacts with the first damping part on the main machine to generate a rotation resistance during rotation of the main machine.

3. A dusting wand as claimed in claim 2, wherein, The first damping part is a damping ring, a plurality of damping grooves are arranged on the surface of the damping ring in a spaced manner, and the plurality of damping grooves surround the dust collection interface; the second damping part is a damping pin, the damping pin is elastically connected to the dusting rod and embedded in the damping groove.

4. The dusting wand of claim 1, wherein, A female fixing part is arranged on the dusting rod, and the female fixing part and the dust collection interface are used to fix the main machine between the second end and the dust collection interface.

5. A dusting wand as claimed in claim 4, wherein, The female fixing part comprises a fixing block, a fixing groove is formed on the fixing block, and an elastic pin is arranged in the fixing groove; the fixing groove is used to embed a male fixing part on the main machine, and the elastic pin is used to clamp the male fixing part.

6. A dusting wand as claimed in claim 5, wherein, The elastic pin comprises a spring and a spherical pin connected to the spring.

7. The dusting wand of claim 1, wherein, The dust collection interface is fixedly arranged on the dusting rod and rotatably connected to the main machine; or the dust collection interface is rotatably arranged on the dusting rod and fixedly connected to the main machine.

8. A dusting wand as claimed in claim 7, characterised in that, The dust collection interface is rotatably connected to the main machine, and the connection between the dust collection interface and the main machine is cylindrical; or the dust collection interface is rotatably connected to the dusting rod, and the connection between the dust collection interface and the dusting rod is cylindrical.

9. A dusting wand as claimed in claim 8, wherein, The long axis of the dusting rod is parallel to the cross section of the cylindrical connection.

10. The dusting wand of claim 1, wherein, The difference between the first distance from the dust collection interface to the first end and the second distance from the dust collection interface to the second end is less than or equal to a preset value.

11. The dusting wand of claim 1, wherein, The dusting rod comprises a dusting section and an operation section connected to each other, and the dust collection interface and the dusting channel are formed in the dusting section.

12. The dusting wand of claim 11, wherein, The length difference between the dusting section and the operation section is less than or equal to 20 cm.

13. The dusting wand of claim 1, wherein, The dusting channel comprises a vertical channel communicated with the dusting part and a horizontal channel communicated with the dust collection interface, and the connection between the vertical channel and the horizontal channel is a rounded connection.

14. The dusting wand of claim 1, wherein, The first end is formed with a plug-in structure for detachable plug-in connection with the dusting part.

15. The dusting wand of claim 1, wherein, The second end is formed with a handheld part, the handheld part is provided with an operation switch, and the operation switch is signal-connected with the main machine.

16. A hand vacuum cleaner characterized by The handheld dust collector comprises a dusting part, a dusting rod according to any one of claims 1-15, and a main machine.

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