Telescopic rod body of vacuum cleaner, vacuum cleaner, and method for adjusting height of vacuum cleaner

Abstract

The present invention belongs to the technical field of vacuum cleaners, and discloses a telescopic rod body of a vacuum cleaner, a vacuum cleaner, and a method for adjusting the height of the vacuum cleaner. The telescopic rod body of the present invention comprises a first tube body and a second tube body, the first tube body is connected to the conductive suction pipe of the vacuum cleaner, the vacuum main unit of the vacuum cleaner is connected to the first tube body or the conductive suction pipe, the second tube body can move in a direction close to or away from the first tube body, when the telescopic rod body of the vacuum cleaner is in an extended state, the second tube body moves in a direction away from the conductive suction pipe, the second tube body and the conductive suction pipe are respectively located on both sides of the vacuum main unit, and the outer diameter of the second tube body is greater than the outer diameter of the first tube body. The present invention reduces the length of the conductive suction pipe to the greatest extent possible, can move the center of gravity of the vacuum cleaner forward, and reduce the weight of the vacuum cleaner held in the operator's hand, thereby achieving the effect of easy and free use, and greatly improving the vacuum suction force, but still maintaining the effect of adjusting the overall height of the vacuum cleaner.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, and in particular to a telescopic rod body of a vacuum cleaner, a vacuum cleaner and a method for adjusting the height of the vacuum cleaner. Background Art

[0002] An upright vacuum cleaner usually includes a vacuum head, a conductive suction tube and a vacuum main unit. The vacuum main unit mainly includes a driving component, a dust collecting component and a filtering component. The conductive suction tube is often long, and considering the transportation cost, the conductive suction tube is usually set to a retractable structure. However, this not only places high demands on the sealing of the conductive suction tube, but also when the conductive suction tube is long, when it is in the maximum extension state, the suction force of the vacuum main unit will be significantly reduced. In order to ensure the use effect, a high-power vacuum main unit must be used, which invisibly increases the manufacturing cost of the vacuum cleaner.

[0003] In addition, most existing upright vacuum cleaners are located near the handle, so when the user holds the vacuum cleaner, the weight of the vacuum cleaner is concentrated on the upper end of the handle (i.e., the gripping position during use), so the user's hand feels heavy. Therefore, how to bring a more relaxed and convenient operation feeling without affecting the vacuuming efficiency of the vacuum cleaner is a technical problem that vacuum cleaner products urgently need to solve.

[0004] At present, when designing a telescopic sleeve structure, a large tube with a larger inner diameter is usually used, and a small tube with a smaller outer diameter is arranged inside the large tube. In order to achieve the telescopic effect, the position of the large tube is fixed, and the small tube is sleeved inside the large tube, and the small tube is pulled out to achieve the telescopic effect. Although this method is convenient for setting up the telescopic structure, the structure that needs to be repeatedly moved in this method is a rod with a smaller diameter. When a longer rod is needed, the pulled-out part is smaller than the tube that accommodates it. Therefore, the overall appearance of the vertical pole after stretching becomes thin, giving consumers a visual feeling of being not strong enough. Summary of the invention

[0005] In order to overcome the above-mentioned shortcomings, one of the objects of the present invention is to provide a retractable rod body of a vacuum cleaner, comprising a retractable tube body, wherein the retractable tube body is connected to a conductive suction pipe of the vacuum cleaner, and the conductive suction pipe is connected to a dust head of the vacuum cleaner, and the retractable tube body is located at an end of the conductive suction pipe away from the dust head, and the retractable tube body comprises a first tube body and a second tube body, the first tube body is connected to the conductive suction pipe of the vacuum cleaner, and the dust collection main unit of the vacuum cleaner is connected to the first tube body or the conductive suction pipe, and the second tube body can move in a direction close to or away from the first tube body, and when the retractable rod body of the vacuum cleaner is in an extended state, the second tube body moves in a direction away from the conductive suction pipe, and the second tube body and the conductive suction pipe are respectively located on both sides of the dust collection main unit, and the outer diameter of the second tube body is larger than the outer diameter of the first tube body.

[0006] The telescopic rod of the vacuum cleaner of the present invention has the following beneficial effects:

[0007] ① The present application breaks the limitation of the existing design of upright vacuum cleaners. Instead of setting the length of the conductive suction pipe of the vacuum cleaner to be retractable, the vacuum cleaner rod body away from one end of the conductive suction pipe is set to be retractable. Therefore, the height of the vacuum cleaner rod body can be adjusted, which is convenient for packaging and transportation and for use by users of different heights. The distance between the vacuum cleaner main body and the vacuum cleaner head is reduced to the greatest extent, thereby improving the overall working efficiency of the vacuum cleaner and reducing the processing and use costs of the vacuum cleaner.

[0008] ② In the present application, when the telescopic rod of the vacuum cleaner is in an extended state, the second tube moves away from the conductive suction tube, and the second tube and the conductive suction tube are respectively located on both sides of the vacuum cleaner main body, so that part of the weight of the vacuum cleaner main body is shared by the vacuum cleaner head, thereby effectively reducing the hand force when the user grasps the handle area, and the user feels relaxed when using the vacuum cleaner;

[0009] ③ The positions of the vacuum cleaner main unit and the vacuum cleaner head of the present invention are relatively fixed. Compared with the method of setting the conductive straw to be telescopic or setting the vacuum cleaner main unit to be movable along the conductive straw, the requirements for the sealing and processing difficulty of the tube body in order to achieve the telescopic form of the conductive straw are greatly reduced. In addition, the existing conductive straws are mostly made of aluminum profiles. The present application sets the conductive straw to a shorter length and sets a telescopic rod separately, thereby reducing the setting length of the conductive straw and reducing the cost of use;

[0010] ④ The telescopic rod body of the present invention sets the outer diameter of the telescopic and movable second tube body to be larger than the outer diameter of the fixed first tube body. Compared with the prior art in which the telescopic and movable tube body is set to a structure with a smaller diameter (i.e., a thin tube is set in a thick tube), on the one hand, the diameter of the appearance does not change much before and after the rod body is extended and retracted, and on the other hand, the appearance of the extended part after the rod body is extended is not a thinner section, so that the vacuum cleaner gives the user a more solid appearance.

[0011] Furthermore, when the telescopic rod of the vacuum cleaner is in a retracted state, the second tube body is sleeved on at least a portion of the first tube body in the length direction, and the outer diameter of the first tube body covered by the second tube body is consistent with the outer diameter of the first tube body not covered by the second tube body. Therefore, after the second tube body is pulled out, the outer diameter of the newly exposed first tube body is consistent with the outer diameter of the first tube body originally set on the outside of the vacuum cleaner rod body. The outer diameter of the second tube body that is pulled and moved in the present application is larger than the outer diameter of the first tube body, and it is always located on the outer surface of the telescopic rod of the vacuum cleaner before and after pulling, so the overall visual experience of the user is not significantly different.

[0012] Furthermore, a hollow groove is provided in at least a part of the wall of the second tube body. The hollow groove is provided in correspondence with the area where the vacuum cleaner main unit is provided. When the movable large-diameter sleeve of the present application is adopted, the problem of avoiding other structures during the movement of the second tube body needs to be fully considered. The present application provides a hollow groove so that when the second tube body moves relative to the first tube body, the location of the vacuum cleaner main unit and other mechanisms is avoided.

[0013] Furthermore, the edges of the hollow groove body are provided with guide edges arranged opposite to each other, and the first tube body is provided with a guide groove arranged to cooperate with the guide edge, thereby ensuring that the second tube body is not easy to fall off when sliding relative to the first tube body.

[0014] Furthermore, it also includes a shielding plate, which can shield the hollow groove body after the second tube body is pulled out away from the first tube body.

[0015] Furthermore, the shield includes a first shield that moves synchronously with the second tube body, and a second shield that is slidably connected to the first shield. Therefore, it is convenient to store the shield when the height of the vacuum cleaner is shortened, and at the same time, the hollow groove body can be fully covered when the height of the vacuum cleaner is lengthened, which is highly aesthetic.

[0016] Furthermore, a stopper is provided on one side surface of the second shielding plate, and the stopper and the second shielding plate form a stepped groove, and the first shielding plate can abut against the stopper. When the telescopic rod of the vacuum cleaner needs to be shortened, the second shielding plate is limited by the first shielding plate, and the first shielding plate overlaps with the second shielding plate, so that the first shielding plate and the second shielding plate can be stored inside the shell of the vacuum cleaner conveniently, and the appearance is neat.

[0017] Furthermore, it also includes a locking mechanism, which includes a rotatable locking bracket, a pushing member abutting against the locking bracket, and an elastic member for applying a thrust to the locking bracket, and the force applied by the pushing member and the elastic member to the locking bracket is opposite in at least one component vector direction.

[0018] Furthermore, the snap-fit ​​bracket includes a snap-fit ​​area for setting the snap-fit ​​protrusion, an abutment area connected to the snap-fit ​​area, and a connection area connected to the abutment area. The second tube body is provided with at least one snap-fit ​​groove capable of snapping the snap-fit ​​protrusion. The snap-fit ​​groove can be a through hole penetrating the tube wall of the second tube body, or a blind hole provided inside the second tube body. By setting it as a blind hole, no hole marks can be seen on the outer surface of the second tube body located outside, so that the overall visual experience of the telescopic rod body of the vacuum cleaner is refreshing.

[0019] Furthermore, it also includes a rotation shaft passing through the clamping bracket, and the rotation shaft is arranged diagonally with the pushing member. This structure utilizes the limited space inside the telescopic rod of the vacuum cleaner and transfers the force application point of the clamping bracket to an area that is convenient for control, without being limited to the outer surface of the telescopic rod of the vacuum cleaner, and does not affect the aesthetics of the rod.

[0020] Furthermore, the push member and the connection area can abut against each other, and one end of the connection area close to the push member has a sloped surface, so that the locking bracket can be easily moved by the push member.

[0021] Furthermore, a through hole is provided on the first tube body for the clamping protrusion to protrude, and when the second tube body moves, the clamping groove can move to a position intersecting with the through hole. Therefore, the locking mechanism can be accommodated in the first tube body without affecting the locking of the position of the second tube body. When consumers use it, they will not see the specific settings of the complicated and redundant locking mechanism, and the visual experience is refreshing.

[0022] Furthermore, the vacuum cleaner further comprises a handle body, and the telescopic tube body and the handle body are an integral part or a separate part. By arranging the telescopic tube body to be integrally connected with the handle body, that is, arranging the rod body connected with the handle body to be telescopic, the user can directly pull the handle body to achieve the movement of the position of the second tube body relative to the first tube body during use, which is convenient for operation. When the telescopic tube body and the handle body are arranged as separate parts, the second tube body can be connected to the handle body, and the effect of moving the position of the second tube body by pulling the handle body can also be achieved.

[0023] A second object of the present invention is to provide a vacuum cleaner, comprising a conductive suction tube, which also comprises the aforementioned telescopic rod of the vacuum cleaner, wherein the first tube of the telescopic rod of the vacuum cleaner is connected to the conductive suction tube.

[0024] The third object of the present invention is to provide a method for adjusting the height of a vacuum cleaner, wherein the vacuum cleaner includes a conductive straw, the length of the conductive straw is fixed, a retractable rod body of the vacuum cleaner is arranged at the end of the conductive straw away from the vacuum head, the retractable rod body of the vacuum cleaner is arranged as a first tube body connected to the conductive straw, and a second tube body that can extend in a direction away from the first tube body, the height of the vacuum cleaner is adjusted by controlling the extension and retraction of the second tube body, when the retractable rod body of the vacuum cleaner is in an extended state, the second tube body moves in a direction away from the conductive straw, the second tube body and the conductive straw are respectively located on both sides of the vacuum cleaner main body, and the outer diameter of the second tube body is larger than the outer diameter of the first tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of the retractable rod of the vacuum cleaner according to the first embodiment of the present invention when it is retracted;

[0026] Figure 2 This is a schematic structural diagram of the telescopic rod of the vacuum cleaner according to the first embodiment of the present invention when it is extended;

[0027] Figure 3 This is a schematic structural diagram of the hollow slot body of the second tube body of the first embodiment of the present invention;

[0028] Figure 4 This is a schematic structural diagram of the guide groove of the first tube body of the first embodiment of the present invention;

[0029] Figure 5 It is a structural schematic diagram of a shield according to a first embodiment of the present invention;

[0030] Figure 6 It is a schematic structural diagram of a stepped groove according to the first embodiment of the present invention;

[0031] Figure 7It is a structural schematic diagram of the locking mechanism of the first embodiment of the present invention;

[0032] Figure 8 It is a structural schematic diagram of a clamping bracket according to the first embodiment of the present invention;

[0033] Fig. 9 This is a schematic diagram of the arrangement structure of the elastic member according to the first embodiment of the present invention;

[0034] Fig.10 This is a schematic diagram of the configuration structure of the guide edge of the first tube body in the first embodiment of the present invention;

[0035] Fig.11 The figure is a schematic diagram of the configuration structure of the limiting groove body according to the first embodiment of the present invention.

[0036] In the figure:

[0037] 1. telescopic rod; 11. first tube; 111. guide groove; 112. perforation; 113. guide edge; 12. second tube; 121. hollow groove; 1211. guide edge; 122. engagement groove;

[0038] 21. first shield plate; 211. guide rail groove; 22. second shield plate; 221. step groove; 222. stopper; 31. engaging bracket; 311. engaging area; 3111. engaging protrusion; 312. abutting area;

[0039] 3121, connecting column; 313, connecting area; 3131, sliding groove; 3132, sloped surface; 32, rotating shaft; 33, pushing member; 34, elastic member; 35, lever;

[0040] 4. Limiting groove body; 41. Blocking piece; 42. Limiting baffle plate; 43. Limiting connecting plate;

[0041] 5. Conductive straw; 6. Handle body; 7. Vacuum head; 8. Vacuum main unit; 9. Sheath. DETAILED DESCRIPTION

[0042] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0043] Embodiment 1:

[0044] See attached Figure 1 and attached Figure 2As shown, this embodiment is a vacuum cleaner, which includes a telescopic rod body 1. The vacuum cleaner rod body of the present invention does not set the conductive suction pipe 5 in a height-adjustable form, but sets the telescopic rod body 1 of the vacuum cleaner connected to the conductive suction pipe 5 in a length-adjustable form, and simultaneously connects the vacuum main unit 8 to the telescopic rod body 1 of the vacuum cleaner.

[0045] After the handle body 6 of the vacuum cleaner of the present invention is pulled out, the center of gravity of the vacuum cleaner can be moved forward, reducing the weight of the vacuum cleaner held in the hands of the operator, thereby achieving the effect of easy and comfortable use. At the same time, the present invention replaces the retractable form of the conductive suction tube 5 in the prior art, and sets the tube body connected to the handle body 6 in a retractable form. Therefore, the length of the conductive suction tube 5 is reduced to the greatest extent possible, the vacuum suction force is greatly improved, but the overall height of the vacuum cleaner can still be adjusted.

[0046] In some embodiments, the retractable rod 1 of the vacuum cleaner includes a first tube 11 connected to the conductive suction tube 5 and a second tube 12 at least partially sleeved outside the first tube 11. The second tube 12 can move toward or away from the first tube 11. Therefore, when the height of the vacuum cleaner needs to be increased, the second tube 12 can be pulled outward. Figure 2 As shown, at this time, the second tube body 12 and the conductive suction tube 5 are respectively located on both sides of the vacuum main unit 8.

[0047] Therefore, part of the weight of the vacuum cleaner main body 8 is shared by the vacuum cleaner head, so that the user holding the handle body 6 can effectively reduce the external force applied, and feel relaxed when using it. The telescopic rod body 1 of the vacuum cleaner is stretchable and by setting the telescopic rod body 1 of the vacuum cleaner, the length of the conductive suction tube 5 is shortened, and the height adjustment function of the vacuum cleaner is realized by adjusting the telescopic rod body 1 of the vacuum cleaner, which greatly improves the suction force, and can correspondingly reduce the power selection of the motor, saving the manufacturing and use costs of the vacuum cleaner.

[0048] In the prior art, the structural form that needs to retract the length of the conductive straw 5 is used as an example: the length of the conductive straw 5 of a conventional handheld vacuum cleaner must be about 650mm, and together with the main head and the dust head, the total length is about 1100mm to be suitable for the use height. However, the present application shortens the length of the conductive straw 5 by setting a retractable rod body, thereby greatly improving the suction force of the vacuum cleaner. For example, a 650mm conventional conductive straw 5 matches a 250W main unit with a vacuum suction force of about 16KPA; and after shortening the conductive straw 5 by 100mm, the vacuum suction force can be increased to about 18KPA; if the conductive straw 5 is shortened by 150mm, the vacuum suction force can be increased by 20%, and the vacuum suction force reaches 20KPA or even higher. Therefore, after the same vacuum cleaner uses a retractable rod body 1 to move the vacuum main unit toward the dust head 7, the vacuum suction force of shortening the length of the conductive straw 5 by 150mm is equivalent to using a 300W brushless motor. This greatly reduces the cost of using high-power brushless motors, and also extends the battery life of the same vacuum cleaner.

[0049] In some embodiments, the retractable rod body 1 is in the form of being integrally connected to the handle body 6, that is, the rod body connected to the handle body 6 is set to be retractable to become a retractable handle. Correspondingly, the first tube body 11 is the air duct suction tube, which is directly connected to the conductive suction tube 5, and the vacuum cleaner main unit 8 is set on the first tube body 11 or on the end of the conductive suction tube 5 close to the first tube body 11. When the user uses it, the position of the second tube body 12 relative to the first tube body 11 can be moved by directly pulling the handle body 6, which is convenient for operation. In other possible embodiments, the retractable rod body 1 and the handle body 6 can also be set as separate parts, that is, the retractable rod body is set between the conductive suction tube 5 and the handle body 6, and the second tube body 12 is connected to the handle body 6, which can also achieve the effect of moving the position of the second tube body 12 by pulling the handle body 6 to achieve the effect of adjusting the height of the vacuum cleaner pole.

[0050] In some embodiments, the second tube 12 is only sleeved on a partial length region of the first tube 11 in the length direction. That is, when the height of the vacuum cleaner is at its shortest, a partial length region of the first tube 11 is covered by the second tube 12, and the outer diameter of the covered first tube 11 is consistent with the outer diameter of the first tube 11 exposed to the outside. Therefore, after the second tube 12 is pulled out, the outer diameter of the newly exposed first tube 11 (see attached Figure 2 The area indicated by the arrow B in the figure) is different from the outer diameter of the first tube body 11 originally arranged outside the vacuum cleaner rod body (see the attached figure). Figure 2The area indicated by the arrow A in the middle is consistent. As a result, the telescopic rod 1 of the vacuum cleaner presents a smoother and flatter columnar appearance as a whole. The change in appearance brought about by the tensile structure form of this solution is different from that in the prior art in that after the second tube 12 originally exposed to the outside moves, the outer diameter of the exposed first tube 11 is the same as or similar to the outer diameter of the original vacuum cleaner rod, that is, the outer diameter of the area that is pulled and extended does not become thinner than before. As a result, the overall appearance of the vacuum cleaner rod feels solid and durable.

[0051] In other possible implementations, the second tube 12 may also completely sheath the first tube 11 inside it, in which case the outer diameter of the first tube 11 may still be set to be the same as the outer diameter of the area close to the conductive straw 5 connected thereto. That is, the outer diameter of the second tube 12 is slightly larger than the outer diameter of the first tube 11, so that when the second tube 12 is pulled to adjust the length of the telescopic rod 1 of the vacuum cleaner, its overall outer diameter also presents a relatively coordinated appearance with the conductive straw 5, and the outer diameter of the stretched second tube 12 is larger, presenting a solid and sturdy tube appearance to consumers.

[0052] In some embodiments, the first tube body 11 and the conductive straw 5 connected thereto have the same outer diameter in the adjacent regions thereof, thereby ensuring that the connection between the two forms a smooth appearance with high aesthetics.

[0053] See attached Figure 3 As shown, in some embodiments, at least a portion of the wall of the second tube body 12 is provided with a hollow groove 121, and the edge of the hollow groove 121 arranged along the axial direction of the second tube body 12 is provided with a guide edge 1211 arranged opposite to each other. At the same time, a guide groove 111 is provided on the first tube body 11 (see the attached Figure 4 ). The present application sets a hollow groove 121 on the second tube 12, on the one hand, to facilitate mutual connection with the first tube 11; on the other hand, because the vacuum cleaner host 8 may be set on one side of the first tube 11, by setting the hollow groove 121, when the second tube 12 moves relative to the first tube 11, the setting position of the vacuum cleaner host 8 is avoided. Therefore, the present application sets a hollow groove 121 on the second tube 12 to ensure that when the movable second tube 12 with a larger outer diameter is pulled, it will not affect the original structure of the vacuum cleaner host 8.

[0054] In some embodiments, the guide groove 111 is a structure formed by bending and concave a part of the outer surface of the first tube body 11 inwardly, and the guide groove 111 is arranged along the moving direction of the second tube body 12. The surface where the guide groove 111 is connected to the first tube body 11 forms a bent ridge structure. Correspondingly, the area where the guide edge 1211 is connected to the main body of the second tube body 12 also forms a bent structure. Therefore, when the guide edge 1211 is embedded in the guide groove 111, the guide edge 1211 can cover the first tube body 11 on its inner side, thereby, the first tube body 11 and the second tube body 12 form a structure that can slide relative to each other but is not easy to fall off.

[0055] The advantage of the structural design of the first tube body 11 and the second tube body 12 in the solution of the present application compared with the prior art is that the present invention is not simply to stretch a thinner and retractable small tube body from a large tube body with a larger outer diameter, and to correspondingly set other mounting structures on the large tube body, which does not require overcoming too many technical obstacles, nor does it need to consider issues such as structural avoidance. The present application comprehensively considers the need to set the vacuum main unit 8 on the first tube body 11 with a relatively small outer diameter, and at the same time, it is also necessary to ensure that the reciprocating movement of the second tube body 12 with a relatively large outer diameter will not affect the setting of the vacuum main unit 8 or other structural parts. Therefore, by setting a hollow slot 121 in the second tube body 12, the problem of space utilization and component avoidance is cleverly solved.

[0056] In some embodiments, a protective sheath 9 connected to the vacuum cleaner main unit 8 and arranged around the second tube 12 is also included (see attached Figure 4 ), therefore, in addition to the cooperation between the guide edge 1211 and the guide groove 111, the setting of the sheath 9 can prevent the second tube body 12 from falling off from the first tube body 11 when it is hit by a large external force.

[0057] In some embodiments, after the handle body 6 is pulled out, an open opening structure is formed at the hollow groove body 121, so that the internal structure is easily exposed and maintenance is not easy. Therefore, the present invention provides at least one shielding plate, which is pulled out synchronously after the second tube body is pulled out in a direction away from the first tube body, and shields the hollow groove body 121, which is aesthetically pleasing. When the rod body is shortened, the shielding plate can also be stored inside.

[0058] See attached Figure 5 As shown, in some embodiments, the shield includes a first shield 21 connected to the handle body 6, and a second shield 22 slidably connected to the first shield 21, thereby facilitating the storage of the shield when the height of the vacuum cleaner is shortened, and at the same time being able to fully cover the hollow slot 121 when the height of the vacuum cleaner is lengthened.

[0059] In some embodiments, the second shield 22 is disposed in the first tube 11. When the height of the vacuum cleaner is shortened, the second shield 22 can be effectively folded and hidden inside the first tube 11, so as not to affect the height adjustment of the vacuum cleaner. When the height of the vacuum cleaner is increased, the second shield 22 slides accordingly, unfolds, and shields the structure inside the hollow slot 121.

[0060] In some embodiments, a stopper 222 is provided on one side surface of the second baffle 22, and the stopper 222 and the second baffle form a stepped groove 221, and the end of the first baffle 21 can abut against the stepped groove 221. Therefore, when the telescopic rod body 1 of the vacuum cleaner needs to be shortened, the second baffle 22 is limited by the first baffle 21, and the first baffle 21 overlaps with the second baffle 22. In some embodiments, the height of the groove body of the stepped groove 221 is consistent with the thickness of the first baffle 21, so when the rod body is shortened, the second baffle 22 overlaps with the first baffle 21, and the matching degree of the two structures is high. In some embodiments, by providing mutually matching sliding grooves and slider structures on the surfaces close to each other when the first baffle 21 and the second baffle 22 overlap each other, the effect of relative sliding and being able to overlap each other can be achieved. The stopper 222 can be an integral part or a split part with the second baffle 22.

[0061] In some embodiments, the guide groove 211 is disposed on the surface of the first baffle 21 close to the second baffle 22, and there is at least one guide groove 211, and the cross-section of the guide groove 211 is "T"-shaped, and the slider structure is disposed on the surface of the second baffle 22 close to the first baffle 21, and the cross-section of the slider is a shape that matches the cross-section of the guide groove 211.

[0062] See attached Figure 8 As shown, in some embodiments, the clamping bracket 31 includes a clamping area 311 for setting a clamping protrusion 3111, a contact area 312 connected to the clamping area 311, and a connection area 313 connected to the contact area 312. The clamping protrusion 3111 is provided in the clamping area 311, and a clamping groove 122 capable of clamping the clamping protrusion 3111 is provided on the second tube body 12.

[0063] In some embodiments, a locking mechanism is further included for limiting the position of the second tube 12 when the rod connected to the handle body 6 is in a stretched or contracted state. Figure 7-9As shown in FIG. 1 , the locking mechanism includes a rotatable locking bracket 31, a rotation shaft 32 passing through the locking bracket 31, a pusher 33 capable of abutting against the locking bracket 31, and an elastic member 34 for applying a continuous thrust to the locking bracket 31. The directions of the forces applied by the pusher 33 and the elastic member 34 to the locking bracket 31 are opposite, or at least the forces in one component direction are opposite. Fig. 9 As shown, when the push member 33 does not apply a force to the engaging bracket 31, the elastic member 34 always applies a first direction ( Fig. 9 The pushing member 33 exerts a force in the opposite direction to the first direction on the engaging bracket 31, because the pushing member 33 and the elastic member 34 exert a force in the opposite direction on the engaging bracket 31, the engaging state between the engaging protrusion 3111 and the engaging groove 122 is broken, thereby achieving unlocking, and then the position of the second tube 12 can be moved, thereby changing the height of the vacuum cleaner.

[0064] In some embodiments, a snap-fitting groove 122 is respectively disposed on the inner walls near the two ends of the second tube body 12, thereby respectively fixing the position of the second tube body 12 when the rod body of the vacuum cleaner is contracted and extended.

[0065] In some embodiments, the clamping area 311 and the connecting area 313 are in a roughly parallel structural form, and the clamping bracket 31 is generally in a "U" shape. This is because the area for adjusting the position of the locking mechanism is not the same as the area where the locking mechanism actually performs the locking. Through this structural setting, the present application transfers the area for adjusting the position of the locking mechanism to the connecting area 313, which is convenient for operation or adjustment. It takes into account the limitations of the setting space of the locking mechanism and ensures that the locking effect can be fully achieved.

[0066] In some embodiments, the rotation shaft 32 and the pusher 33 are arranged diagonally, and the pusher 33 is located closer to the clamping protrusion 3111. Therefore, by applying force to the clamping bracket 31 through the pusher 33, the clamping bracket 31 can rotate around the rotation shaft 32, and the clamping protrusion 3111 of the clamping bracket 31 rotates in a direction away from the clamping groove 122, thereby realizing the unlocking of the clamping bracket 31 and the second tube 12. (The "diagonal" here can refer to the attached Figure 8 As shown in the dotted box in the figure, it means that the axis C where the rotating shaft 32 is located and the projection point D of the pushing member 33 in the direction parallel to the axial direction of the rotating shaft 32 are two opposite corners of a rectangle; the "pushing member 33 is located closer to the clamping protrusion 3111" here means that the pushing member 33 is at Figure 8The projection of the straight line where the side CE of the middle rectangle is located is closer to the clamping protrusion 3111). The elastic member 34 is arranged at one end of the abutting area 312 close to the connecting area 313, and the pushing member 33 is in contact with one end of the connecting area 313 away from the abutting area 312.

[0067] In some embodiments, the elastic member 34 applies force to the abutment area 312 of the clamping bracket 31, and the force application point is located at one end of the abutment area 312 close to the connection area 313. Therefore, under the action of the elastic member 34, it can be ensured that the clamping bracket 31 always clamps the clamping protrusion 3111 into the clamping groove 122 of the second tube 12. In some embodiments, a connecting column 3121 is provided on the abutment area 312, and the elastic member 34 is a spring abutting on the connecting column 3121. The elastic member 34 can also adopt other elastic structural forms.

[0068] The working principle of the locking mechanism of the present invention is as follows: the pusher 33 applies a force to the connection area 313, and the locking bracket 31, under the restriction of the rotation axis 32, moves the locking protrusion 3111 in the direction away from the second tube body 12 around the rotation axis 32, and the second tube body 12 can be pulled at this time to adjust the length of the rod connected to the handle body 6. The elastic member 34 always applies a pushing force substantially opposite to the force of the pusher 33 to the locking bracket 31. When the pusher 33 does not apply a force to the locking bracket 31, the locking bracket 31 always keeps the height of the locking protrusion 3111 protruding from the overall layout area of ​​the locking bracket 31. Therefore, when the locking protrusion 3111 slides into the locking groove 122 of the second tube body 12, the position of the second tube body 12 can be easily locked. The advantage of using this locking mechanism is that it cleverly utilizes the limited space inside the telescopic rod of the vacuum cleaner, and by setting the connection area 313, the force application point of the clamping bracket 31 is transferred to a convenient control area, rather than being limited to the outer surface of the telescopic rod 1 of the vacuum cleaner. If the force application point is directly set in the area of ​​the clamping protrusion 3111, it is necessary to set a force transmission structure outside the telescopic rod of the vacuum cleaner, which will affect the aesthetics of the rod.

[0069] In some embodiments, the connection area 313 of the engaging bracket 31 is further provided with a slide groove 3131 arranged along the moving direction of the second tube body 12 (see the attached Figure 8 The engaging bracket 31 is fixed to other components of the vacuum cleaner (such as the vacuum cleaner main unit 8 or the frame) through the guide pin shaft passing through the slide slot 3131.

[0070] In some embodiments, the locking mechanism is disposed in the first tube body 11. The first tube body 11 is provided with a through hole 112 for the clamping protrusion to protrude (see the attached Figure 5), the through hole 112 can be connected with the engaging groove 122 of the second tube body 12. Therefore, when the second tube body 12 moves relative to the first tube body 11, the engaging groove 122 can move to a position connected with the through hole 112, and then the engaging protrusion 3111 passes through the through hole 112 and engages in the engaging groove 122. Therefore, through this structural design, the locking mechanism can be accommodated in the first tube body 11, but it does not affect the locking of the position of the second tube body 12 at all. When consumers use it, they will not see the specific settings of the complicated and redundant locking mechanism, and the visual experience is refreshing. Unlike the locking mechanism of the telescopic sleeve in the prior art, the locking mechanism of the present application can hardly see any specific fixing or engaging structure of the locking mechanism on the outside of the vacuum cleaner rod body, and all of them are hidden inside the tube body.

[0071] In some embodiments, the through hole 112 is only provided at one end of the first tube body 11 close to the second tube body 12 .

[0072] In some embodiments, the inner tube wall of the first tube body 11 is further provided with two oppositely disposed guide edges 113 for the clamping protrusion 3111 to slide and guide (see the attached Fig.10 ), a groove and a channel for the clamping protrusion 3111 to slide are formed between the two guide edges 113. Therefore, under the action of the guide edges 113, the stability of the movement and adjustment of the clamping bracket 31 can be ensured when the telescopic rod body 1 is extended or shortened.

[0073] In some embodiments, the locking mechanism further includes a lever 35 connected to the push member 33, and the lever 35 extends to the outside of the vacuum cleaner housing. Therefore, when using the vacuum cleaner, the user only needs to easily push the lever 35 outside the easy-to-operate vacuum cleaner rod body, and then the push member 33 applies force to the connection area 313. Therefore, the end of the clamping bracket 31 provided with the clamping protrusion 3111 is set to move to the side away from the second tube body 12, so that the length of the rod body connected to the handle body 6 can be adjusted. On the contrary, when the lever 35 is released, under the action of the elastic member 34, the clamping bracket 31 is always in a state of being clamped with the second tube body 12, so as to fix the position of the second tube body 12. One end of the connection area 313 close to the push member 33 can abut against the push member 33, and one end of the connection area 313 close to the push member 33 has a slope surface 3132. The inclination direction of the sloped surface 3132 is inclined in the direction in which the pusher 33 conveniently applies a force to the sloped surface 3132 when the locking mechanism and the second tube body 12 need to be released, thereby facilitating the pusher 33 to apply a force to the locking bracket 31. Figure 8 For example, when the engaging bracket 31 needs to be rotated along the arrow G direction (clockwise), the surface of the sloped surface 3132 close to the engaging area 311 is set to be inclined toward the side closer to the abutting area 312 .

[0074] See attached Fig.11 As shown, in some embodiments, a limiting groove body 4 for accommodating the engaging bracket 31 is further included, and baffles 41 for limiting the engaging bracket 31 are arranged on both sides of the engaging bracket 31 in the limiting groove body 4, and a limiting baffle plate 42 is also arranged on the side of the limiting groove body 4 located away from the connecting area 313 of the pushing member 33. A limiting connecting plate 43 is also arranged above the limiting groove body 4, and the limiting connecting plate 43 and the limiting groove body 4 together form a space for the connecting area 313 to pass through. Therefore, under the arrangement of the limiting groove body 4, the limiting connecting plate 43, the slide groove 3131, and the guide pin shaft, the moving range of the engaging bracket 31 can be limited to prevent interference with other components inside the vacuum cleaner.

[0075] Embodiment 2:

[0076] The present embodiment is a method for adjusting the height of a vacuum cleaner. The method shortens the length of the conductive suction pipe 5 of a conventional vacuum cleaner and separately sets a retractable rod 1 connected to the conductive suction pipe 5. When height adjustment is required, the height of the conductive suction pipe 5 is fixed, and the retractable rod 1 is set at the end of the conductive suction pipe 5 away from the vacuum head 7. The retractable rod 1 is set as a first tube 11 connected to the conductive suction pipe 5, and a second tube 12 that can extend away from the first tube 11. The height of the vacuum cleaner is adjusted by controlling the extension and retraction of the second tube 12. When the retractable rod 1 is in an extended state, the second tube 12 moves away from the conductive suction pipe 5. The second tube 12 and the conductive suction pipe 5 are respectively located on both sides of the vacuum main unit, and the outer diameter of the second tube 12 is greater than the outer diameter of the first tube 11.

[0077] The above implementation modes are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it, 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 telescopic rod body of a vacuum cleaner, comprising a telescopic tube body, wherein the telescopic tube body is connected to a conductive suction pipe of the vacuum cleaner, wherein the conductive suction pipe is connected to a suction head of the vacuum cleaner, wherein the telescopic tube body is located at an end of the conductive suction pipe away from the suction head, wherein the telescopic tube body comprises a first tube body and a second tube body, It is characterized in that The first tube body is connected to the conductive suction pipe of the vacuum cleaner, and the vacuum main unit of the vacuum cleaner is connected to the first tube body or the conductive suction pipe. The second tube body can move toward or away from the first tube body. When the telescopic rod of the vacuum cleaner is in an extended state, the second tube body moves toward a direction away from the conductive suction tube. The second tube body and the conductive suction tube are respectively located on both sides of the vacuum cleaner main body. The outer diameter of the second tube is greater than the outer diameter of the first tube. When the telescopic rod of the vacuum cleaner is in a retracted state, the second tube is sleeved on at least a portion of the first tube in the length direction. The outer diameter of the first tube covered by the second tube is consistent with the outer diameter of the first tube not covered by the second tube.

2. The telescopic rod of a vacuum cleaner according to claim 1, characterized in that: A hollow groove is provided in at least a portion of the tube wall of the second tube body.

3. The telescopic rod of the vacuum cleaner according to claim 2, characterized in that: Guide edges facing each other are arranged on the edges of the hollow slot body, and guide grooves matching with the guide edges are arranged on the first tube body.

4. The telescopic rod of a vacuum cleaner according to claim 2, characterized in that: It also includes a shielding plate, which can shield the hollow slot body after the second tube body is pulled out away from the first tube body.

5. The telescopic rod of the vacuum cleaner according to claim 4, characterized in that: The shielding plate includes a first shielding plate that moves synchronously with the second tube body, and a second shielding plate that is slidably connected to the first shielding plate.

6. The telescopic rod of the vacuum cleaner according to claim 5, characterized in that: A stopper is arranged on one side surface of the second baffle, the stopper and the second baffle form a stepped groove, and the first baffle can abut against the stopper.

7. The telescopic rod of a vacuum cleaner according to any one of claims 1, 3 to 6, characterized in that: It also includes a locking mechanism, which includes a rotatable locking bracket, a pushing member abutting against the locking bracket, and an elastic member for applying a thrust to the locking bracket, and the force applied by the pushing member and the elastic member to the locking bracket is opposite in at least one component vector direction.

8. The telescopic rod of a vacuum cleaner according to claim 7, characterized in that: The snap-fit ​​bracket includes a snap-fit ​​area for setting a snap-fit ​​protrusion, and an abutment area connected to the snap-fit ​​area. The connecting area connected to the abutment area is provided with at least one snap-fit ​​groove capable of snapping the snap-fit ​​protrusion on the second tube body.

9. The telescopic rod of a vacuum cleaner according to claim 8, characterized in that: The locking mechanism further comprises a rotating shaft passing through the locking bracket, and the rotating shaft is arranged diagonally to the pushing member.

10. The telescopic rod of a vacuum cleaner according to claim 8 or 9, characterized in that: The pushing member and the connecting area can abut against each other, and one end of the connecting area close to the pushing member has a sloped surface.

11. The telescopic rod of a vacuum cleaner according to claim 8 or 9, characterized in that: The first tube body is provided with a through hole for the clamping protrusion to protrude, and when the second tube body moves, the clamping groove can move to a position intersecting with the through hole.

12. The telescopic rod of a vacuum cleaner according to any one of claims 1, 3-6, 8 or 9, characterized in that: The vacuum cleaner also includes a handle body, and the telescopic tube body and the handle body are an integral part or a separate part.

13. A vacuum cleaner, comprising a conductive straw, characterized in that: It also includes the telescopic rod body of the vacuum cleaner according to any one of claims 1 to 12, wherein the first tube body of the telescopic rod body of the vacuum cleaner is connected to the conductive suction tube.

14. A method for adjusting the height of a vacuum cleaner, characterized in that: The vacuum cleaner comprises a conductive straw, the length of which is fixed, a telescopic rod of the vacuum cleaner is arranged at one end of the conductive straw away from the vacuum cleaner head, the telescopic rod of the vacuum cleaner is arranged as a first tube connected to the conductive straw, and a second tube that can extend in a direction away from the first tube, the height of the vacuum cleaner is adjusted by controlling the extension and retraction of the second tube, when the telescopic rod of the vacuum cleaner is in an extended state, the second tube moves in a direction away from the conductive straw, the second tube and the conductive straw are respectively located on both sides of the vacuum cleaner main body, the outer diameter of the second tube is greater than the outer diameter of the first tube, When the telescopic rod of the vacuum cleaner is in a retracted state, the second tube is sleeved on at least a portion of the first tube in the length direction. The outer diameter of the first tube covered by the second tube is consistent with the outer diameter of the first tube not covered by the second tube.

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