Device with telescopic tube

Abstract

The utility model relates to the technical field of household appliances, and discloses a device with a telescopic pipe, which comprises a main body, a handle; the first end of the telescopic pipe is fixedly connected with the main body, the second end of the telescopic pipe is fixed in the handle, the telescopic pipe comprises a plurality of pipe bodies which are sequentially arranged in a sleeved mode, each pipe body is provided with a locking hole, the telescopic pipe has a complete extending state, a partial extending state and a complete retracting state, and when the telescopic pipe is in the partial extending state or the complete retracting state, the locking hole is locked. The locking holes in the pipe body which does not extend out are aligned; the switch assembly is arranged on the handle, the switch assembly comprises a locking pin, the locking pin has a locking state and an unlocking state, in the unlocking state, the locking pin leaves the locking hole in the pipe body which does not extend out, and in the locking state, the locking pin is inserted into the locking hole in the pipe body which does not extend out. Different use requirements of the user are met, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a device with a telescopic tube. Background Art

[0002] Mite removal devices are cleaning devices used to remove dust, mites and other allergens from textile items such as beds, sofas, carpets, and clothing. Mite removal cleaning devices generally include a host and a grip handle, wherein the host is generally composed of a roller brush, a suction port, a dust cup, a motor and other components. When using a mite removal vacuum cleaner for cleaning, the dust mites beaten up by the roller brush are sucked into the dust cup through the suction port to achieve the purpose of cleaning.

[0003] The related art discloses a cleaning device, including a main body component, a handle, and a telescopic tube. The first end of the telescopic tube is fixedly connected to the main body component, and the second end is fixed in the handle. The telescopic tube has an extended state and a retracted state. When the user needs to clean the bed or a relatively large area, the telescopic tube is pulled open to put the telescopic tube in an extended state. At this time, the user can clean the bed or a relatively large area by standing beside the bed or standing in one position without bending over, and the cleaning is effortless. When the cleaning is completed, the telescopic tube is retracted to put the telescopic tube in a retracted state. The whole machine occupies a small volume and is easy to store.

[0004] In the above-mentioned related technologies, the telescopic tube can be fully extended or fully retracted, and there is no other length for users to choose. It cannot meet the various usage needs of users and the experience is poor. Utility Model Content

[0005] In view of this, the utility model provides a device with a telescopic tube to solve the problem that the telescopic tube of the cleaning equipment in the related art can only be fully extended or fully retracted.

[0006] The utility model provides a device with a telescopic tube, comprising:

[0007] main body;

[0008] handle;

[0009] A telescopic tube, a first end of which is fixedly connected to the main body and a second end of which is fixed in the handle, the telescopic tube comprising a plurality of tube bodies which are sleeved in sequence, each of which is provided with a locking hole, the telescopic tube having a fully extended state, a partially extended state and a fully retracted state, and when the telescopic tube is in the partially extended state or the fully retracted state, the locking holes on the tube bodies which are not extended are aligned;

[0010] A switch assembly is arranged on the handle, and the switch assembly includes a locking pin, and the locking pin has a locked state and an unlocked state. In the unlocked state, the locking pin leaves the locking hole on the unextended tube body, and in the locked state, the locking pin is inserted into the locking hole on the unextended tube body.

[0011] Beneficial effect: When the telescopic tube is in a partially extended state or a fully retracted state, the locking holes on the unextended tube body are aligned, and the locking pin is inserted into the locking hole on the unextended tube body, which can ensure that the telescopic tube remains in a partially extended state or a fully retracted state. When the unextended tube body needs to be extended, the locking pin is moved away from the locking hole on the unextended tube body to release the lock on the unextended tube body. At this time, the unextended tube body can be extended. After the extended length of the telescopic tube meets the user's needs, the locking pin can be inserted into the locking hole on the unextended tube body again. Therefore, in the device with the telescopic tube, the telescopic tube can have a variety of lengths to meet the different usage needs of users and improve the user experience.

[0012] In an optional embodiment, the switch assembly also includes an unlocking button, and a transmission structure is provided between the unlocking button and the locking pin. When the unlocking button is pressed, the transmission structure drives the locking pin to move to the unlocking state, and when the unlocking button is released, the locking pin moves to the locking state.

[0013] Beneficial effect: when it is necessary to extend the unextended tube body, press the unlock button, the transmission structure makes the locking pin leave the locking hole on the unextended tube body, and release the lock on the unextended tube body. At this time, the unextended tube body can be extended, and the user can release the unlock button. After one section of the tube body is extended, the locking pin will automatically insert into the locking hole on the unextended tube body, or the user keeps pressing the unlock button during the release process, and after the length of the telescopic tube extended meets the user's needs, release the unlock button, and the locking pin will be inserted into the locking hole on the unextended tube body again. The setting of the unlock button is convenient for user operation.

[0014] In an optional embodiment, a first elastic member is provided between the locking pin and the handle, and when the unlocking button is released, the elastic force of the first elastic member resets the locking pin to the locked state.

[0015] Beneficial effect: When the transmission structure drives the locking pin to move until the locking pin leaves the locking hole on the unextended tube body, the first elastic member generates an elastic force. When the unlocking button is released, the locking pin loses the force of the transmission structure. Therefore, the elastic force of the first elastic member can reset the locking pin to the locked state, and the locking pin is inserted into the locking hole on the unextended tube body again.

[0016] In an optional embodiment, the transmission structure includes a rocker rod, which is rotatably disposed in the handle, and the rocker rod includes a rotating part and a first connecting part and a second connecting part located on both sides of the rotating part, the lower end of the unlocking button is against the first connecting part, and the second connecting part is connected to the locking pin.

[0017] Beneficial effects: The transmission structure includes a rocker rod, which includes a rotating part and a first connecting part and a second connecting part located on both sides of the rotating part. The lower end of the unlocking button is against the first connecting part, and the second connecting part is connected to the locking pin. The transmission structure has a simple structure, low cost, and is easy to install in the handle. Specifically, when it is necessary to extend the unextended tube body, the unlocking button is pressed. At this time, the lower end of the unlocking button is against the first connecting part, causing the first connecting part to rotate downward, thereby driving the swing rod to rotate, thereby causing the second connecting part to rotate upward, driving the locking pin to move upward and leave the locking hole on the unextended tube body, thereby releasing the lock on the unextended tube body. At this time, the unextended tube body can be extended, and the first elastic member generates an elastic force. The user can release the unlocking button, and the first connecting part loses its force. After one section of the tube body is extended, the elastic force of the first elastic member can make the locking pin automatically insert into the locking hole on the unextended tube body, or the user keeps pressing the unlocking button during the release process, and releases the unlocking button after the length of the telescopic tube extended meets the user's needs. At this time, the first connecting part loses its force, and the elastic force of the first elastic member can reset the locking pin to the locked state, and the locking pin is inserted into the locking hole on the unextended tube body again.

[0018] In an optional embodiment, the locking pin includes a rocker lever action surface, and the second connecting portion abuts against the rocker lever action surface.

[0019] Beneficial effect: By setting the rocker action surface on the locking pin, the second connecting part abuts against the rocker action surface, and the connection relationship between the rocker and the locking pin is simple, which facilitates the assembly of the rocker.

[0020] In an optional implementation, the first connection portion and / or the second connection portion is a curved surface.

[0021] Beneficial effect: Since the rocker arm is rotatably arranged in the handle, the motion trajectory of its two ends is arc-shaped. The first connecting part and / or the second connecting part is set as an arc surface, which can ensure that when the unlocking button is pressed, the unlocking button can maintain contact with the first connecting part and the second connecting part can maintain contact with the locking pin.

[0022] In an optional embodiment, the distance between the first connecting portion and the axis of the rotating portion is smaller than the distance between the second connecting portion and the axis of the rotating portion.

[0023] Beneficial effect: Since the distance between the first connection part and the axis of the rotating part is smaller than the distance between the second connection part and the axis of the rotating part, it can be ensured that the moving stroke of the second connection part is greater than the moving stroke of the first connection part, thereby ensuring that the locking pin can be inserted into the locking hole of each tube body.

[0024] In an optional embodiment, the locking pin includes a pin and a fixing portion arranged on the outside of the pin, one end of the fixing portion constitutes a spring limiting surface, a portion of the first elastic member is sleeved outside the pin, one end of the first elastic member is against the spring limiting surface, and the other end is against the handle.

[0025] Beneficial effect: one end of the fixing part forms a spring limiting surface, part of the first elastic member is sleeved outside the pin, and one end is against the spring limiting surface, so it is convenient to install the first elastic member.

[0026] In an optional embodiment, the locking pin and the handle are matched via a limiting structure, and the limiting structure is used to enable the locking pin to move in a direction perpendicular to the axis of the tube body.

[0027] Beneficial effect: The setting of the limiting structure can ensure that the locking pin moves in a direction perpendicular to the axis of the tube body, thereby ensuring that the locking pin can be smoothly inserted into the locking hole of the tube body that has not been extended.

[0028] In an optional embodiment, the limiting structure includes a limiting groove provided on the locking pin and a limiting rib provided on the handle, the limiting rib is inserted into the limiting groove, and the limiting groove extends in a direction perpendicular to the axis of the tube body.

[0029] Beneficial effects: the limiting rib is fixed in the handle, the limiting rib is inserted into the limiting groove, the limiting groove extends in a direction perpendicular to the axis of the tube body, and when the locking pin moves, the limiting groove moves relative to the limiting rib, which can ensure that the locking pin moves in a direction perpendicular to the axis of the tube body, thereby ensuring that the locking pin can be smoothly inserted into the locking hole of the tube body that has not extended.

[0030] In an optional embodiment, the unlocking button includes a push rod, a limiting hole is provided in the handle, the push rod passes through the limiting hole, and the axis of the limiting hole is perpendicular to the axis of the tube body.

[0031] Beneficial effect: The cooperation between the limiting hole and the ejector rod can make the central axis of the ejector rod and the unlocking button collinear.

[0032] In an optional embodiment, the push rod is provided with a step portion, and when the step portion abuts against the outer peripheral end surface of the limiting hole, the limiting hole prevents the unlocking button from being further pressed and moved.

[0033] Beneficial effect: When the step portion abuts against the outer peripheral end surface of the limiting hole, the unlocking button can be prevented from being pressed further and moved, thereby effectively limiting the travel of the unlocking button.

[0034] In an optional embodiment, the unlocking button is connected to a first clamping portion, and the main body is provided with a second clamping portion. When the telescopic tube is in a fully retracted state and the unlocking button is not pressed, the second clamping portion cooperates with the first clamping portion to prevent the handle from moving away from the main body. When the unlocking button is pressed, the second clamping portion separates from the first clamping portion.

[0035] Beneficial effect: by connecting the unlocking button to the first engaging part, when the telescopic tube is in a fully retracted state, the first engaging part and the second engaging part cooperate to prevent the handle from moving in a direction away from the main body, thereby preventing the telescopic tube from extending, making the entire device occupy a smaller volume and convenient for storage; when the telescopic tube needs to be extended, the unlocking button is pressed, the second engaging part is separated from the first engaging part, and the locking pin leaves the locking hole of each tube body, and the telescopic tube can be pulled out at this time; therefore, the unlocking button can realize the unlocking between the handle and the main body, and can also realize the unlocking of each tube body by the locking pin.

[0036] In an optional embodiment, a connecting portion is provided on one side of the lower end of the unlocking button, the first clamping portion is provided above the connecting portion, the lower surface of the connecting portion is a downward pressure surface, and when the telescopic tube is in a fully extended state, the bumping ball embedded in the bumping ball hole of the outermost tube body is located below the downward pressure surface, and when the unlocking button is pressed, the downward pressure surface is suitable for compressing the bumping ball embedded in the bumping ball hole of the outermost tube body.

[0037] Beneficial effect: The setting of the lower pressure surface can make the bumping bead embedded in the bumping bead hole of the outermost tube body retract, so as to facilitate the retraction of the telescopic tube.

[0038] In an optional embodiment, the device having the telescopic tube is a cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A cross-sectional view of a device with a telescopic tube according to an embodiment of the utility model when the telescopic tube is in a fully retracted state;

[0041] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0042] Figure 3 A cross-sectional view of a device with a telescopic tube in an embodiment of the utility model showing a process in which a first tube body extends when a first engaging portion is separated from a second engaging portion;

[0043] Figure 4 It is a cross-sectional view of a device with a telescopic tube according to an embodiment of the utility model when the first tube body is extended;

[0044] Figure 5 A cross-sectional view of a device with a telescopic tube in an embodiment of the utility model during the extension process of the second tube body;

[0045] Figure 6 It is a cross-sectional view of a device with a telescopic tube according to an embodiment of the utility model when the second tube body is extended;

[0046] Figure 7 for Figure 6 A partial enlarged schematic diagram of B in the middle;

[0047] Figure 8 It is a cross-sectional view of a device with a telescopic tube according to an embodiment of the utility model when the third tube body is extended;

[0048] Fig. 9 for Figure 8 A partial enlarged schematic diagram of C in the middle;

[0049] Fig.10 It is a cross-sectional view of a device with a telescopic tube according to an embodiment of the utility model when the fourth tube body is extended;

[0050] Fig.11 for Fig.10 A partial enlarged schematic diagram of D in the middle;

[0051] Fig.12 for Figure 2 A schematic diagram of the structure of the middle locking pin at a viewing angle;

[0052] Fig.13 for Figure 2 A schematic diagram of the structure of the middle locking pin at another viewing angle;

[0053] Fig.14 for Figure 2 Schematic diagram of the structure of the middle swing rod;

[0054] Fig.15 for Figure 1 Schematic diagram of the structure of the middle handle;

[0055] Fig.16 for Figure 1Schematic diagram of the structure of the unlock button;

[0056] Fig.17 for Fig.16 A cross-sectional view of the unlock button is shown.

[0057] Description of reference numerals:

[0058] 1. Main body; 101. Second engaging part; 2. Handle; 201. Button mounting hole; 202. Shaft mounting hole; 203. Limiting rib; 204. Limiting hole; 3. Locking hole; 4. Locking pin; 401. Rocker action surface; 402. Pin; 403. Fixing part; 404. Spring limiting surface; 405. Limiting groove; 5. Unlocking button; 501. First engaging part; 502. Connecting part; 503. Pressing surface; 504. Push rod; 6. First elastic member; 7. Rocker; 701. Rotating part; 702. First connecting part; 703. Second connecting part; 9. First tube; 901. First inner sleeve; 902. First spring sheet; 9 021, first bead; 10, second tube; 1001, first sleeve; 1002, first bead hole; 1003, second inner sleeve; 1004, second spring piece; 10041, second bead; 11, third tube; 1101, second sleeve; 1102, second bead hole; 1103, third inner sleeve; 1104, third spring piece; 11041, third bead; 12, fourth tube; 1201, third sleeve; 1202, third bead hole; 1203, fourth inner sleeve; 1204, fourth spring piece; 12041, fourth bead; 13, fifth tube; 1301, fourth sleeve; 1302, fourth bead hole. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0060] The related art discloses a cleaning device, including a main body component, a handle, and a telescopic tube. The first end of the telescopic tube is fixedly connected to the main body component, and the second end is fixed in the handle. The telescopic tube has an extended state and a retracted state. When the user needs to clean the bed or a relatively large area, the telescopic tube is pulled open to put the telescopic tube in an extended state. At this time, the user can clean the bed or a relatively large area by standing beside the bed or standing in one position without bending over, and the cleaning is effortless. When the cleaning is completed, the telescopic tube is retracted to put the telescopic tube in a retracted state. The whole machine occupies a small volume and is easy to store.

[0061] In the above-mentioned related technologies, the telescopic tube can be fully extended or fully retracted, and there is no other length for users to choose. It cannot meet the various usage needs of users and the experience is poor.

[0062] For example, when the user is cleaning the bed, the user stands beside the bed and needs to fully extend the telescopic tube to clean a position far away from the standing position. When the main assembly moves to a position closer to the user, the telescopic tube is still in a fully extended state and is long, so the user needs to move to continue cleaning. Therefore, the entire cleaning process requires the user to move back and forth, which results in a poor experience.

[0063] Combine the following Figures 1 to 17 , describing an embodiment of the utility model.

[0064] According to an embodiment of the present utility model, on one hand, a device with a telescopic tube is provided, comprising a main body 1, a handle 2, the telescopic tube and a switch assembly.

[0065] Among them, the first end of the telescopic tube is fixedly connected to the main body 1, and the second end is fixed in the handle 2. The telescopic tube includes a plurality of tube bodies which are sequentially sleeved, each tube body is provided with a locking hole 3, and the telescopic tube has a fully extended state, a partially extended state and a fully retracted state. When the telescopic tube is in the partially extended state or the fully retracted state, the locking holes 3 on the unextended tube bodies are aligned; the switch assembly is arranged on the handle 2, and the switch assembly includes a locking pin 4. The locking pin 4 has a locked state and an unlocked state. In the unlocked state, the locking pin 4 leaves the locking hole 3 on the unextended tube body, and in the locked state, the locking pin 4 is inserted into the locking hole 3 on the unextended tube body.

[0066] In this embodiment, when the telescopic tube is in a partially extended state or a fully retracted state, the locking holes 3 on the unextended tube body are aligned, and the locking pin 4 is inserted into the locking hole 3 on the unextended tube body, which can ensure that the telescopic tube remains in a partially extended state or a fully retracted state. When the unextended tube body needs to be extended, the locking pin 4 is moved away from the locking hole 3 on the unextended tube body to release the lock on the unextended tube body. At this time, the unextended tube body can be extended. After the extended length of the telescopic tube meets the user's needs, the locking pin 4 can be inserted into the locking hole 3 on the unextended tube body. Therefore, in the device with the telescopic tube, the telescopic tube can have a variety of lengths to meet the different usage needs of users and improve the user experience.

[0067] It should be noted that the main body 1 is the main structure for realizing the functions of the device with a telescopic tube, and the handle 2 is used for a user to hold to operate the device with a telescopic tube.

[0068] In one embodiment, the switch assembly also includes an unlocking button 5, and a transmission structure is provided between the unlocking button 5 and the locking pin 4. When the unlocking button 5 is pressed, the transmission structure drives the locking pin 4 to move to an unlocking state. When the unlocking button 5 is released, the locking pin 4 moves to a locking state.

[0069] In this embodiment, when it is necessary to extend the unextended tube body, the unlocking button 5 is pressed, and the transmission structure causes the locking pin 4 to leave the locking hole 3 on the unextended tube body, thereby releasing the lock on the unextended tube body. At this time, the unextended tube body can be extended, and the user can release the unlocking button 5. After one section of the tube body is extended, the locking pin 4 will automatically insert into the locking hole 3 on the unextended tube body, or the user keeps pressing the unlocking button 5 during the loosening process, and after the length of the telescopic tube extended meets the user's needs, the unlocking button 5 is released, and the locking pin 4 is inserted into the locking hole 3 on the unextended tube body again. The setting of the unlocking button 5 is convenient for user operation.

[0070] In an embodiment not shown in the figure, it is conceivable to extend the locking pin 4 out of the handle 2, and the extended end of the locking pin 4 is pressed to insert the locking pin 4 into the locking hole 3 on the unextended tube body, and a spring is arranged between the locking pin 4 and the handle 2, and the extended end of the locking pin 4 is pressed again to make the locking pin 4 leave the locking hole 3 on the unextended tube body, similar to the operation of the automatic pen in the related technology to extend or retract the locking pin 4.

[0071] Specifically in one embodiment, Fig.15 As shown, the handle 2 is provided with a button mounting hole 201 suitable for the unlock button 5 to extend. When the unlock button 5 is pressed, the unlock button 5 moves along the button mounting hole 201, and a part of the unlock button 5 extends out of the handle 2, thereby facilitating the operation of the unlock button 5.

[0072] In one embodiment, a first elastic member 6 is provided between the locking pin 4 and the handle 2. When the unlocking button 5 is released, the elastic force of the first elastic member 6 resets the locking pin 4 to the locked state.

[0073] In this embodiment, when the transmission structure drives the locking pin 4 to move until the locking pin 4 leaves the locking hole 3 on the unextended tube body, the first elastic member 6 generates an elastic force. When the unlocking button 5 is released, the locking pin 4 loses the force of the transmission structure. Therefore, the elastic force of the first elastic member 6 can reset the locking pin 4 to the locked state, and the locking pin 4 is inserted into the locking hole 3 on the unextended tube body again.

[0074] In an embodiment not shown in the figure, it is conceivable not to set the first elastic member 6. In this case, the transmission structure may include a gear assembly, and the unlocking button 5 may be connected to the first rack. When the unlocking button 5 moves, it drives the first rack to move together. The first rack is meshed with one side of the gear assembly. The locking pin 4 may be formed with a second rack or connected to the second rack as a whole. The second rack is meshed with the other side of the gear assembly. When the unlocking button 5 is pressed, the first rack is driven to move downward and the gear assembly is driven to rotate. When the gear assembly rotates, it drives the second rack and the locking pin 4 to move upward and leave the locking hole 3 on the unextended tube body. When the extended length of the telescopic tube meets the user's usage requirements, the unlocking button 5 is released, and the unlocking button 5 moves upward, driving the gear assembly to rotate. When the gear assembly rotates, it drives the second rack and the locking pin 4 to move downward and insert into the locking hole 3 on the unextended tube body.

[0075] In one embodiment, Figure 2 , Fig.14 As shown, the transmission structure includes a rocker rod 7, which is rotatably disposed in the handle 2. The rocker rod 7 includes a rotating part 701 and a first connecting part 702 and a second connecting part 703 located on both sides of the rotating part 701. The lower end of the unlocking button 5 is against the first connecting part 702, and the second connecting part 703 is connected to the locking pin 4.

[0076] In this embodiment, the transmission structure includes a rocker rod 7, which includes a rotating part 701 and a first connecting part 702 and a second connecting part 703 located on both sides of the rotating part 701. The lower end of the unlocking button 5 is against the first connecting part 702, and the second connecting part 703 is connected to the locking pin 4. The transmission structure has a simple structure, low cost, and is easy to install in the handle 2. Specifically, when it is necessary to extend the unextended tube body, the unlocking button 5 is pressed. At this time, the lower end of the unlocking button 5 is against the first connecting part 702, so that the first connecting part 702 rotates downward, thereby driving the swing rod 7 to rotate, thereby causing the second connecting part 703 to rotate upward, driving the locking pin 4 to move upward and leave the locking hole 3 on the unextended tube body, thereby releasing the lock of the unextended tube body. At this time, the unextended tube body can be extended, and the first elastic member 6 generates an elastic force. The user can release the unlocking button 5, and the first connecting part 702 loses its force. After one section of the tube body is extended, the elastic force of the first elastic member 6 can make the locking pin 4 automatically insert into the locking hole 3 on the unextended tube body, or the user keeps pressing the unlocking button 5 during the release process, and releases the unlocking button 5 after the length of the telescopic tube extended meets the user's needs. At this time, the first connecting part 702 loses its force, and the elastic force of the first elastic member 6 can make the locking pin 4 reset to the locked state, and the locking pin 4 is inserted into the locking hole 3 on the unextended tube body again.

[0077] Specifically in one embodiment, Fig.14 and Fig.15 As shown, the rotating part 701 is a rotating shaft, and a rotating shaft mounting hole 202 is provided in the handle 2, and the rotating shaft is rotatably mounted in the rotating shaft mounting hole 202.

[0078] Specifically in one embodiment, the unlocking button 5 is provided with a push rod 504 , and the push rod 504 abuts against the first connecting portion 702 .

[0079] Specifically in one embodiment, a second elastic member is provided between the unlocking button 5 and the handle 2, so when the unlocking button 5 is released, the elastic force of the second elastic member can reset the unlocking button 5. When the unlocking button 5 is reset, the force on the locking pin 4 is lost. At this time, the elastic force of the first elastic member 6 resets the locking pin 4 to a locked state.

[0080] In one embodiment, Fig.12 and Fig.13 As shown, the locking pin 4 includes a rocker action surface 401 , and the second connecting portion 703 abuts against the rocker action surface 401 .

[0081] In this embodiment, by providing the rocker action surface 401 on the locking pin 4 and the second connecting portion 703 abutting against the rocker action surface 401 , the connection relationship between the rocker 7 and the locking pin 4 is simple, which facilitates the assembly of the rocker 7 .

[0082] In addition, since the swing rod 7 can rotate, if it is connected to the locking pin 4, additional components need to be added to prevent interference with the movement of the swing rod 7 or the movement of the locking pin 4.

[0083] In one embodiment, Fig.14 As shown, the first connection portion 702 and / or the second connection portion 703 is a curved surface.

[0084] In this embodiment, since the rocker arm 7 is rotatably disposed in the handle 2, the motion trajectory of its two ends is arc-shaped. The first connecting portion 702 and / or the second connecting portion 703 are set as arc surfaces, which can ensure that when the unlocking button 5 is pressed, the unlocking button 5 can maintain contact with the first connecting portion 702 and the second connecting portion 703 can maintain contact with the locking pin 4.

[0085] Specifically in one embodiment, the first connection portion 702 and the second connection portion 703 are both arc surfaces.

[0086] In one embodiment, the distance between the first connection portion 702 and the axis of the rotating portion 701 is smaller than the distance between the second connection portion 703 and the axis of the rotating portion 701 .

[0087] In this embodiment, since the distance between the first connecting part 702 and the axis of the rotating part 701 is smaller than the distance between the second connecting part 703 and the axis of the rotating part 701, it can be ensured that the moving stroke of the second connecting part 703 is greater than the moving stroke of the first connecting part 702, thereby ensuring that the locking pin 4 can be inserted into the locking hole 3 of each tube body.

[0088] In one embodiment, further reference is made to Fig.13 The locking pin 4 includes a pin 402 and a fixing portion 403 arranged outside the pin 402, one end of the fixing portion 403 constitutes a spring limiting surface 404, and a portion of the first elastic member 6 is sleeved outside the pin 402, with one end abutting against the spring limiting surface 404 and the other end abutting against the handle 2.

[0089] In this embodiment, one end of the fixing portion 403 constitutes a spring limiting surface 404 , a portion of the first elastic member 6 is sleeved outside the pin 402 , and one end abuts against the spring limiting surface 404 , so as to facilitate installation of the first elastic member 6 .

[0090] In this embodiment, a spring mounting surface is provided inside the handle 2, and the other end of the first elastic member 6 abuts against the spring mounting surface.

[0091] In one embodiment, the locking pin 4 and the handle 2 are matched via a limiting structure, and the limiting structure is used to enable the locking pin 4 to move in a direction perpendicular to the axis of the tube body.

[0092] In this embodiment, the setting of the limiting structure can ensure that the locking pin 4 moves in a direction perpendicular to the axis of the tube body, thereby ensuring that the locking pin 4 can be smoothly inserted into the locking hole 3 of the tube body that has not been extended.

[0093] In one embodiment, Fig.13 and Fig.15 As shown, the limiting structure includes a limiting groove 405 provided on the locking pin 4 and a limiting rib 203 provided on the handle 2. The limiting rib 203 is inserted into the limiting groove 405. The limiting groove 405 extends in a direction perpendicular to the axis of the tube body.

[0094] In this embodiment, the limiting rib 203 is fixed in the handle 2, and the limiting rib 203 is inserted into the limiting groove 405. The limiting groove 405 extends in a direction perpendicular to the axis of the tube body. When the locking pin 4 moves, the limiting groove 405 moves relative to the limiting rib 203, which can ensure that the locking pin 4 moves in a direction perpendicular to the axis of the tube body, thereby ensuring that the locking pin 4 can be smoothly inserted into the locking hole 3 of the tube body that has not extended.

[0095] Of course, in an alternative embodiment, the limiting groove 405 can be set on the handle 2 , and the limiting rib 203 can be set on the locking pin 4 .

[0096] In one embodiment, further reference is made to Fig.15 The unlocking button 5 includes a push rod 504, a limiting hole 204 is provided in the handle 2, and the push rod 504 passes through the limiting hole 204, and the axis of the limiting hole 204 is perpendicular to the axis of the tube body.

[0097] In this embodiment, the limiting hole 204 cooperates with the push rod 504 to make the central axes of the push rod 504 and the unlocking button 5 collinear.

[0098] In one embodiment, the push rod 504 is provided with a step portion, and when the step portion abuts against the outer peripheral end surface of the limiting hole 204, the limiting hole 204 prevents the unlocking button 5 from being further pressed and moved.

[0099] In this embodiment, when the step portion abuts against the outer peripheral end surface of the limiting hole 204 , the limiting hole 204 prevents the unlocking button 5 from being further pressed and moved, thereby effectively limiting the travel of the unlocking button 5 .

[0100] In one embodiment, Figure 1 and Figure 2 As shown, the unlocking button 5 is connected to a first engaging portion 501, and the main body 1 is provided with a second engaging portion 101. When the telescopic tube is in a fully retracted state and the unlocking button 5 is not pressed, the second engaging portion 101 cooperates with the first engaging portion 501 to prevent the handle 2 from moving away from the main body 1. When the unlocking button 5 is pressed, the second engaging portion 101 separates from the first engaging portion 501.

[0101] In this embodiment, by connecting the unlocking button 5 to the first engaging portion 501, when the telescopic tube is in a fully retracted state, the first engaging portion 501 cooperates with the second engaging portion 101 to prevent the handle 2 from moving away from the main body 1, thereby preventing the telescopic tube from extending, making the entire device occupy a smaller volume and convenient for storage. When the telescopic tube needs to be extended, the unlocking button 5 is pressed, the second engaging portion 101 is separated from the first engaging portion 501, and the locking pin 4 leaves the locking hole 3 of each tube body. At this time, the telescopic tube can be pulled out. Therefore, the unlocking button 5 can realize the unlocking between the handle 2 and the main body 1, and can also realize the unlocking of each tube body by the locking pin 4.

[0102] Specifically in one embodiment, Fig.17 As shown, the top of the first engaging portion 501 includes a barbed surface and a horizontal surface, and the barbed surface, the horizontal surface and the unlocking button 5 form a groove. When the telescopic tube is in a fully retracted state and the unlocking button 5 is not pressed, the barbed surface abuts against the second engaging portion 101. When the unlocking button 5 is pressed, the first engaging portion 501 moves downward with the unlocking button 5, so that the barbed surface is separated from the second engaging portion 101.

[0103] In one embodiment, Fig.11 and Fig.17 As shown, a connecting portion 502 is provided on one side of the lower end of the unlocking button 5, and a first engaging portion 501 is provided above the connecting portion 502. The lower surface of the connecting portion 502 is a downward pressing surface 503. When the telescopic tube is in a fully extended state, the bumping ball embedded in the bumping ball hole of the outermost tube body is located below the downward pressing surface 503. When the unlocking button 5 is pressed, the downward pressing surface 503 is suitable for compressing the bumping ball embedded in the bumping ball hole of the outermost tube body.

[0104] In this embodiment, the setting of the lower pressing surface 503 can make the bumping ball embedded in the bumping ball hole of the outermost tube body retract, so as to facilitate the retraction of the telescopic tube.

[0105] Specifically in one embodiment, the telescopic tube has five tube bodies from inside to outside, namely a first tube body 9 , a second tube body 10 , a third tube body 11 , a fourth tube body 12 and a fifth tube body 13 .

[0106] The first end of the first tube body 9 is connected with a connecting structure, and the connecting structure is embedded in the main body 1 . The outer side of the end of the first tube body 9 is provided with a first inner sleeve 901 . The end of the first tube body 9 is provided with a first elastic piece 902 . The first elastic piece 902 has a first bump bead 9021 .

[0107] A first sleeve 1001 is provided on the inner side of the head end of the second tube body 10, a first bead hole 1002 is provided on the head end of the second tube body 10, a second inner sleeve 1003 is provided on the outer side of the rear end of the second tube body 10, a second spring piece 1004 is provided on the inner side of the rear end of the second tube body 10, and the spring piece has a second bead 10041.

[0108] A second sleeve 1101 is provided on the inner side of the head end of the third tube body 11, a second bead hole 1102 is provided on the head end of the third tube body 11, a third inner sleeve 1103 is provided on the outer side of the rear end of the third tube body 11, a third elastic piece 1104 is provided on the inner side of the rear end of the third tube body 11, and the third elastic piece 1104 has a third bead 11041.

[0109] A third sleeve 1201 is provided on the inner side of the head end of the fourth tube body 12, a third bead hole 1202 is provided on the head end of the fourth tube body 12, a fourth inner sleeve 1203 is provided on the outer side of the rear end of the fourth tube body 12, a fourth spring piece 1204 is provided on the inner side of the rear end of the fourth tube body 12, and the fourth spring piece 1204 has a fourth bead 12041.

[0110] A fourth sleeve 1301 is disposed inside the head end of the fifth tube body 13 , a fourth bead-touching hole 1302 is disposed at the head end of the fifth tube body 13 , and the tail end of the reading tube body is disposed in the handle 2 .

[0111] The second tube body 10, the third tube body 11, the fourth tube body 12 and the fifth tube body 13 are all provided with locking holes 3, and the locking holes 3 are of the same size. When the telescopic tube is fully retracted, the locking holes 3 are coaxially arranged, and the locking holes 3 are smaller than the first bead hole 1002, the second bead hole 1102, the third bead hole 1202 and the fourth bead hole 1302, which can prevent the bead from entering the locking hole 3.

[0112] like Figure 1 and Figure 2 As shown, when the telescopic tube is in the fully retracted state, the first engaging portion 501 on the unlocking button 5 is engaged with the second engaging portion 101 of the main body 1, and the handle 2 cannot move. Figure 3 As shown, by pressing the unlocking button 5, the first engaging portion 501 is separated from the second engaging portion 101, and the handle 2 can be pulled out. At this time, the locking pin 4 is still inserted in each locking hole 3. After the first engaging portion 501 is separated from the second engaging portion 101, the unlocking button 5 is released, and the handle 2 is stretched in a direction away from the main body 1 until the first sleeve 1001 abuts against the first inner sleeve 901. Figure 4 As shown, at this time, the first bead 9021 is embedded in the first bead hole 1002 on the second tube body 10, connecting the first tube body 9 and the second tube body 10. At this time, only the first tube body 9 is pulled out.

[0113] If the second tube 10 needs to be further pulled out, the unlocking button 5 is pressed to the bottom, so that the locking pin 4 leaves the locking hole 3 on the second tube 10, the third tube 11, the fourth tube 12, and the fifth tube 13. Figure 5 As shown, the second tube body 10 can be further pulled out, and the user can release the unlocking button 5 until the second sleeve 1101 abuts against the second inner sleeve 1003. Figure 6 and Figure 7As shown, the second bead 10041 is embedded in the second bead hole 1102 on the third tube body 11, connecting the second tube body 10 and the third tube body 11 together, and the locking pin 4 is automatically inserted into the locking hole of the remaining tube body. At this time, the first tube body 9 and the second tube body 10 are pulled out. If the remaining tube body does not need to be pulled out further, there is no need to operate the unlocking button 5. Alternatively, in the process of pulling out the second tube body 10, the user keeps pressing the unlocking button 5 until the second sleeve 1101 abuts against the second inner sleeve 1003. If the remaining tube body does not need to be pulled out further, the unlocking button 5 is released, and the locking pin 4 is inserted into the locking hole 3 of the remaining tube body.

[0114] If the third tube 11 needs to be further pulled out, the unlocking button 5 is pressed to the bottom to make the locking pin 4 leave the locking holes 3 on the third tube 11, the fourth tube 12 and the fifth tube 13. At this time, the third tube 11 can be further pulled out, and the user can release the unlocking button 5 until the third sleeve 1201 abuts against the third inner sleeve 1103. Figure 8 and Fig. 9 As shown, the third bead 11041 is embedded in the third bead hole 1202 on the fourth tube 12, connecting the third tube 11 and the fourth tube 12 together, and the locking pin 4 is automatically inserted into the locking holes of the remaining tubes. At this time, the first tube 9, the second tube 10 and the third tube 11 are pulled out. Or in the process of pulling out the third tube 11, the user keeps pressing the unlock button 5 until the third sleeve 1201 abuts against the third inner sleeve 1103. If it is not necessary to continue pulling out the remaining tubes, release the unlock button 5, and the locking pin 4 will be inserted into the locking holes 3 of the remaining tubes.

[0115] If the fourth tube body 12 needs to be further pulled out, the unlocking button 5 is pressed to the bottom to make the locking pin 4 leave the locking holes 3 on the fourth tube body 12 and the fifth tube body 13. At this time, the fourth tube body 12 can be further pulled out, and the user can release the unlocking button 5 until the fourth sleeve 1301 abuts against the fourth inner sleeve 1203. Fig.10 and Fig.11 As shown, the fourth bead 12041 is embedded in the fourth bead hole 1302 on the fifth tube 13, connecting the fourth tube 12 and the fifth tube 13 together. At this time, the telescopic tube is in a fully extended state, the locking pin 4 is automatically inserted into the locking hole 3 of the fifth tube 13, and the fourth bead 12041 is located below the lower pressing surface 503. Alternatively, during the process of pulling out the fourth tube 12, the user keeps pressing the unlocking button 5 until the fourth sleeve 1301 abuts against the fourth inner sleeve 1203, and then the user releases the unlocking button 5.

[0116] When retraction is required, press the unlock button 5 to retract the locking pin 4 and the fourth bead 12041. At this time, the fourth tube body 12 can be retracted until the head end of the fifth tube body 13 hits the third bead 11041, so that the third bead 11041 is retracted. At this time, the third tube body 11 can be retracted. When the head end of the fourth tube body 12 hits the second bead 10041, the second bead 10041 is retracted. At this time, the second tube body 10 can be retracted. When the head end of the third tube body 11 hits the first bead 9021, the first bead 9021 is retracted. At this time, the first tube body 9 can be retracted.

[0117] In one embodiment, the device having the telescoping tube is a cleaning device.

[0118] The cleaning device may be a mite remover or a vacuum cleaner.

[0119] The main body 1 generally includes a roller brush, a dust suction port, and a fan. The operation of the fan generates suction, and the dust mites beaten up by the roller brush are sucked into the dust cup assembly.

[0120] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A device having a telescopic tube, characterized in that: include: Subject (1); Handle (2); A telescopic tube, the first end of which is fixedly connected to the main body (1), and the second end of which is fixed in the handle (2), the telescopic tube comprising a plurality of tube bodies which are sleeved in sequence, each of which is provided with a locking hole (3), the telescopic tube having a fully extended state, a partially extended state and a fully retracted state, and when the telescopic tube is in the partially extended state or the fully retracted state, the locking holes (3) on the tube bodies which are not extended are aligned; A switch assembly is arranged on the handle (2), and comprises a locking pin (4). The locking pin (4) has a locked state and an unlocked state. In the unlocked state, the locking pin (4) leaves the locking hole (3) on the unextended tube body, and in the locked state, the locking pin (4) is inserted into the locking hole (3) on the unextended tube body.

2. The device with telescopic tube according to claim 1, characterized in that The switch assembly further comprises an unlocking button (5), wherein a transmission structure is provided between the unlocking button (5) and the locking pin (4); when the unlocking button (5) is pressed, the transmission structure drives the locking pin (4) to move to the unlocking state; and when the unlocking button (5) is released, the locking pin (4) moves to the locking state.

3. The device with telescopic tube according to claim 2, characterized in that A first elastic member (6) is provided between the locking pin (4) and the handle (2); when the unlocking button (5) is released, the elastic force of the first elastic member (6) causes the locking pin (4) to return to the locked state.

4. The device with telescopic tube according to claim 3, characterized in that The transmission structure comprises a rocker rod (7), the rocker rod (7) being rotatably arranged in the handle (2), the rocker rod (7) comprising a rotating portion (701) and a first connecting portion (702) and a second connecting portion (703) located on both sides of the rotating portion (701), the lower end of the unlocking button (5) being in contact with the first connecting portion (702), and the second connecting portion (703) being connected to the locking pin (4).

5. The device with telescopic tube according to claim 4, characterized in that The locking pin (4) comprises a rocker action surface (401), and the second connecting portion (703) abuts against the rocker action surface (401).

6. The device with telescopic tube according to claim 4, characterized in that The first connecting portion (702) and / or the second connecting portion (703) is a curved surface.

7. The device with telescopic tube according to claim 4, characterized in that The distance between the first connecting portion (702) and the axis of the rotating portion (701) is smaller than the distance between the second connecting portion (703) and the axis of the rotating portion (701).

8. The device with telescopic tubes according to any one of claims 3 to 7, characterized in that The locking pin (4) comprises a pin (402) and a fixing portion (403) arranged outside the pin (402), one end of the fixing portion (403) forming a spring limiting surface (404), a portion of the first elastic member (6) is sleeved outside the pin (402), one end of the first elastic member (6) abuts against the spring limiting surface (404), and the other end of the first elastic member (6) abuts against the handle (2).

9. The device with telescopic tubes according to any one of claims 1 to 7, characterized in that The locking pin (4) and the handle (2) cooperate with each other via a limiting structure, and the limiting structure is used to enable the locking pin (4) to move in a direction perpendicular to the axis of the tube body.

10. The device with telescopic tube according to claim 9, characterized in that The limiting structure comprises a limiting groove (405) provided on the locking pin (4) and a limiting rib (203) provided on the handle (2), the limiting rib (203) being inserted into the limiting groove (405), and the limiting groove (405) extending in a direction perpendicular to the axis of the tube body.

11. The device with telescopic tubes according to any one of claims 4 to 7, characterized in that The unlocking button (5) comprises a push rod (504), a limiting hole (204) is provided in the handle (2), the push rod (504) passes through the limiting hole (204), and the axis of the limiting hole (204) is perpendicular to the axis of the tube body.

12. The device with telescopic tube according to claim 11, characterized in that The push rod (504) is provided with a step portion, and when the step portion abuts against the outer peripheral end surface of the limiting hole (204), the limiting hole (204) prevents the unlocking button (5) from continuing to be pressed and moved.

13. The device with telescopic tubes according to any one of claims 2 to 7, characterized in that The unlock button (5) is connected to a first engaging portion (501), and the main body (1) is provided with a second engaging portion (101). When the telescopic tube is in a fully retracted state and the unlock button (5) is not pressed, the second engaging portion (101) cooperates with the first engaging portion (501) to prevent the handle (2) from moving in a direction away from the main body (1). When the unlock button (5) is pressed, the second engaging portion (101) separates from the first engaging portion (501).

14. The device with telescopic tube according to claim 13, characterized in that A connecting portion (502) is provided on one side of the lower end of the unlocking button (5), the first engaging portion (501) is provided above the connecting portion (502), the lower surface of the connecting portion (502) is a pressing surface (503), when the telescopic tube is in a fully extended state, the bumping ball embedded in the bumping ball hole of the outermost tube body is located below the pressing surface (503), when the unlocking button (5) is pressed, the pressing surface (503) is suitable for compressing the bumping ball embedded in the bumping ball hole of the outermost tube body.

15. The device with telescopic tubes according to any one of claims 1 to 7, characterized in that The device with the telescopic tube is a cleaning device.

Images