A telescopic structure, a manual flusher

Abstract

The utility model provides a kind of telescopic structure, manual flusher, it is related to cleaning equipment technical field. Including the installation pipe body suitable for being inserted into the bottle body, its inner wall is formed with at least one spiral sliding groove along central axis direction;Rotary member, rotation is set in the installation pipe body, its inside is formed with telescopic passage, and it is formed with vertical passage along height direction with the telescopic passage communication;Spray bar, movably set in the telescopic passage of rotary member, inside is formed with liquid outlet passage, its outside is provided with the slider extending out the vertical passage and suitable for sliding along the spiral sliding groove;When rotating the rotary member direct current or reverse, the rotary member is suitable for driving the slider to slide up and down along the spiral sliding groove, to control the spray bar telescopic activity in the installation pipe body. Through the scheme, the operation convenience of telescopic structure is improved.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and more specifically, to a telescopic structure and a manual flushing device. Background Technology

[0002] Irrigators have wide applications in medical care, personal hygiene, industrial cleaning, and daily life, especially when used as personal care devices such as bidets, where portability and ease of operation are paramount. Traditional irrigators suffer from two main technical drawbacks: one is motor-driven electric irrigators, such as the rotary cleaning and disinfection mechanism disclosed in CN222488336U. While achieving rotary rinsing, these suffer from complex structures, bulky size, the need for an external liquid source, and battery safety concerns. The other is manual irrigators, such as the portable bidet shown in CN204561957U. Although the retractable nozzle design improves portability, its telescopic mechanism relies on direct manual pulling, which easily leads to nozzle contamination. Furthermore, the friction-based positioning method results in loosening and unstable sealing during use, impacting the user experience. Especially in scenarios with stringent hygiene requirements, such as medical care, existing irrigators struggle to simultaneously meet the multiple demands of ease of operation, structural stability, and hygiene protection. In addition, there is still considerable room for improvement in the sealing performance, telescopic positioning reliability, and residual liquid discharge efficiency of the nozzle telescopic mechanism in the existing technology. Utility Model Content

[0003] This utility model discloses a telescopic structure, which has the advantages of stable structure, convenient operation and effective prevention of spray bar contamination.

[0004] The technical solution is as follows: A telescopic structure includes a bottle body and further includes: an installation tube adapted to extend into the bottle body, the inner wall of which has at least one spiral sliding groove formed along the central axis; a rotating component rotatably disposed within the installation tube, the interior of which has a telescopic channel, and a vertical channel communicating with the telescopic channel along the height direction; and a spray bar movably disposed within the telescopic channel of the rotating component, the interior of which has a liquid outlet channel, and an external slider extending out of the vertical channel and adapted to slide along the spiral sliding groove; by driving the rotating component to rotate, the slider can be driven to slide along the spiral sliding groove, thereby causing the spray bar to telescopically move within the installation tube.

[0005] Furthermore, this application also proposes that two spiral sliding grooves are symmetrically arranged on the left and right sides, and two sliders are symmetrically arranged on the left and right sides to be adapted to slide in the two spiral sliding grooves respectively.

[0006] Furthermore, this application also proposes that a first transverse channel is formed at the end of the vertical channel near the bottle opening, and the first transverse channel is connected to the vertical channel by an inclined plane. When the slider slides to the upper limit position, it can enter the transverse channel to limit the spray bar to the height of the upper limit position.

[0007] Furthermore, this application also proposes that the spray bar has a tapered structure that is narrower at the top and wider at the bottom, and a first sealing ring is provided at the end near the slider. The first sealing ring is adapted to seal the spray bar with the inner wall of the rotating part when the spray bar is in the upper limit position.

[0008] Furthermore, this application also proposes that the mounting tube includes a mounting part suitable for threaded connection at the bottle mouth of the bottle body and a tube part suitable for extending into the bottle body and communicating with the internal space of the bottle body, wherein the mounting part and the tube part are fixedly connected by an ultrasonic hot melt welding process.

[0009] Furthermore, this application also proposes that the rotating component includes an operating part located outside the mounting tube and a rotating part located inside the tube, with vertical channels symmetrically arranged on both sides of the rotating part, and the vertical channels connecting the internal space of the bottle and the telescopic channel.

[0010] Furthermore, this application also proposes that the end of the rotating member exposed above the mounting tube forms an umbrella-shaped structure, and an annular protrusion located outside the rotating part is formed inside the umbrella-shaped structure to form a slot for mounting the tube part between the annular protrusion and the rotating part, and the annular protrusion and the tube part are connected by a second sealing ring.

[0011] Furthermore, this application also proposes that the tube body is provided with a plurality of drainage grooves along its height direction, which are suitable for communicating with one of the vertical channels; when the outlet of the spray bar is facing downward and the spray bar is in the upper limit position, the height of the drainage groove is close to the inlet of the spray bar but not lower than the inlet, so as to reduce the residual liquid in the bottle.

[0012] Furthermore, this application also proposes that the rotating part of the rotating component includes a first sector-shaped part and a second sector-shaped part, with two symmetrical vertical channels formed between the first sector-shaped part and the second sector-shaped part; the bottom ends of the first sector-shaped part and the second sector-shaped part extend out of the tube body and are provided with external threads for connecting the nut part; a connector is provided between the nut part and the bottom end of the mounting tube body, and the connector is provided with a support part suitable for embedding into the vertical channel to support the first sector-shaped part and the second sector-shaped part; a second transverse channel suitable for the slider to enter is formed between the top end of the support part and the first sector-shaped part and the second sector-shaped part, respectively, to limit the height of the spray bar at the lower limit position.

[0013] This utility model also provides a manual rinser, including a bottle body and the aforementioned telescopic structure, the telescopic structure being adapted to be installed on the bottle body.

[0014] As can be seen from the above, the telescopic structure and manual flushing device provided in this application achieve stable telescopic extension and retraction of the spray bar through the cooperation of the rotary drive mechanism and the spiral groove, realize the positioning and locking of the spray bar through the transverse channel, and effectively prevent liquid leakage by combining the sealing structure. It has the advantages of stable structure, convenient operation and effective prevention of spray bar contamination. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a telescopic spray bar when it is extended according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of a telescopic spray bar retracted according to an embodiment of this utility model;

[0017] Figure 3 This is a cross-sectional structural schematic diagram of a telescopic structure according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the rotating component and the spray bar in an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of a rotating component of a telescopic structure according to an embodiment of this utility model;

[0020] Figure 6 This is a schematic cross-sectional view of the tube body of a telescopic structure according to an embodiment of this utility model;

[0021] Figure 7 This is a schematic diagram of the internal spiral sliding groove of a telescopic structure according to an embodiment of the present invention;

[0022] Reference numerals: Bottle body 1, Mounting tube body 2, Mounting part 21, Tube body part 22, Spiral sliding groove 221, Drainage groove 222, Rotating part 3, Operating part 31, Annular protrusion 311, Slot 312, Rotating part 32, Second transverse channel 321, Telescopic channel 322, Vertical channel 323, First transverse channel 324, Inclined surface 325, First sector part 326, Second sector part 327, Spray bar 4, Liquid outlet channel 41, Liquid inlet 42, Slider 43, First sealing ring 5, Second sealing ring 6, Nut part 7, Connecting part 8, Support part 81. Detailed Implementation

[0023] Combination Figures 1 to 7As shown, this embodiment provides a manual flushing device, including a bottle body 1 and a telescopic structure. The telescopic structure includes: a mounting tube 2, adapted to extend into the bottle body 1, with at least one spiral sliding groove 221 formed on its inner wall along the central axis; a rotating member 3, rotatably disposed within the mounting tube 2, having a telescopic channel formed inside, and a vertical channel 323 communicating with the telescopic channel along its height; and a spray bar 4, movably disposed within the telescopic channel of the rotating member 3, having a liquid outlet channel 41 formed inside, and a slider 43 extending out of the vertical channel 323 and adapted to slide along the spiral sliding groove 221 on its outside. When the rotating member 3 rotates clockwise or counterclockwise, the rotating member 3 is adapted to drive the slider 43 to slide up and down along the spiral sliding groove 221 to control the telescopic movement of the spray bar 4 within the mounting tube 2.

[0024] Combination Figure 3 , Figure 6 , Figure 7 As shown, the mounting tube 2 is a tubular component with an axially extending structure, which can be manufactured using injection molding. Its inner wall has a spiral sliding groove 221 to guide the movement of the slider 43. The rotating component 3 is an operating part 31 with a rotating function; its internal channel establishes a liquid passage between the bottle 1 and the spray bar 4. The spray bar 4 is a movable component with a liquid outlet channel 41, which can be designed with a conical structure. Lifting and lowering motion is achieved through the cooperation of the slider 43 and the spiral groove. The spiral sliding groove 221 is a guide structure with a continuous spiral trajectory, which can be designed with a double-headed symmetrical spiral to ensure the smoothness of the lifting and lowering motion. When the operator rotates the rotating component 3, its internal vertical channel 323 drives the spray bar 4 to rotate synchronously. The slider 43 outside the spray bar 4 moves along the spiral sliding groove 221 on the inner wall of the mounting tube 2, converting the rotational motion into linear motion. Due to the action of the vertical channel 323, the slider 43 on the spray bar 4 rises or falls within the vertical channel 323. When the slider 43 reaches the set angle by rotating clockwise or counterclockwise, it reaches the top or bottom of the spiral groove, and the spray bar 4 extends or retracts accordingly. The conical spray bar 4, when extended, forms a seal with the inner wall of the rotating component 3 to prevent liquid leakage. The design of the double spiral groove and the symmetrical slider 43 balances the forces during movement, avoiding jamming.

[0025] Compared to existing technologies, traditional positioning sleeves rely on friction for fixation. This solution achieves reliable positioning through mechanical limiting of the spiral groove, preventing accidental movement during use. Compared to motor-driven solutions, this structure utilizes entirely mechanical transmission, simplifying the overall construction and making it more suitable for portable applications. It achieves stable telescopic control under manual operation, avoiding hygiene hazards caused by direct contact with the nozzle. The spiral transmission mechanism ensures smooth and reliable telescopic movement, while the mechanical limiting structure provides clear position feedback. The entire structure requires no electric drive, significantly reducing manufacturing costs while maintaining functionality, making it suitable for environments with high hygiene requirements, such as medical and nursing care.

[0026] In a preferred embodiment, two spiral sliding grooves 221 are symmetrically arranged on the left and right sides, and two sliders 43 are symmetrically arranged on the left and right sides to slide within the two spiral sliding grooves 221 respectively. The spiral sliding groove 221 refers to the channel structure formed along the central axis direction on the inner wall of the mounting tube 2, which is symmetrically distributed on the left and right sides. Specifically, it can be achieved by symmetrically machining spiral grooves on both sides of the inner wall of the mounting tube 2. This design balances the force on the spray bar 4 during the extension and retraction process through the symmetrically distributed double channels, avoiding skewness or jamming caused by unilateral force. The slider 43 refers to the protruding structure on the outside of the spray bar 4, which is symmetrically distributed on the left and right sides, specifically on both sides of the spray bar 4. This design, through the cooperation of the double sliders 43 and the double spiral grooves, enhances the guiding stability of the spray bar 4 during the extension and retraction process, preventing vibration or offset caused by unilateral sliding when the rotating part 3 rotates. When the rotating part 3 is rotated, the symmetrically arranged sliders 43 slide synchronously along the spiral sliding grooves 221 on the left and right sides respectively. Due to the symmetrical distribution of the double spiral grooves, the lateral forces on the spray bar 4 during the extension and retraction process cancel each other out, allowing the spray bar 4 to maintain linear motion along the central axis direction. Meanwhile, the symmetrical support of the double sliders 43 reduces the frictional resistance between the spray bar 4 and the inner wall of the rotating part 3, avoiding localized wear or jamming caused by single-point force. Through the cooperation of the symmetrical double grooves and the double sliders 43, the spray bar 4 remains in a state of force balance during extension and retraction, significantly improving operational smoothness and structural stability. The cooperation of the symmetrical double grooves and the double sliders 43 makes the extension and retraction trajectory of the spray bar 4 more stable, reducing the risk of seal wear due to structural imbalance, while also reducing the rotational torque required by the user during operation, thus improving the reliability and service life of the flusher.

[0027] Combination Figures 3 to 6As shown, in this embodiment, a first transverse channel 324 is formed at the end of the vertical channel 323 near the opening of the bottle body 1. The first transverse channel 324 is connected to the vertical channel by an inclined surface 325. When the slider 43 slides to the upper limit position, it can enter the transverse channel to limit the height of the spray bar 4 at the upper limit position. The first transverse channel 324 refers to a groove located at the top of the vertical channel 323 and extending horizontally. Specifically, it can be achieved by opening a transverse groove at the top of the vertical channel of the rotating part 32 of the rotating member 3. Its function is to provide horizontal movement space for the slider 43 to achieve position locking. The inclined surface 325 connection means that the first transverse channel 324 and the vertical channel 323 are connected by an inclined transition surface. Specifically, it can be achieved by machining an inclined guide surface at the top of the vertical channel 323. Its function is to guide the slider 43 to slide smoothly from the vertical direction into the horizontal direction. The upper limit position refers to the highest position when the spray bar 4 is fully extended from the mounting tube 2. Specifically, it can be determined by the top position of the spiral sliding groove 221. Its function is to limit the maximum extension length of the spray bar 4. When the rotating component 3 is rotated in the forward direction, the spray bar 4 rises along the spiral sliding groove 221 via the slider 43. After reaching the top of the spiral groove, the slider 43 is guided by the inclined surface 325 into the first transverse channel 324. At this time, since the extension direction of the transverse channel is perpendicular to the rotation direction of the rotating component 3, the slider 43 is restricted within the transverse channel and cannot continue to move along the spiral groove, thus keeping the spray bar 4 stably in the upper limit position. When it is necessary to retract the spray bar 4, rotating the rotating component 3 in the reverse direction allows the slider 43 to slide out of the transverse channel along the inclined surface 325 and re-enter the descent path of the spiral sliding groove 221.

[0028] Compared to existing technologies, current solutions rely solely on the friction of the positioning sleeve to maintain the position of the spray boom 4, which is prone to displacement under liquid pressure or external force. This solution, by setting up a transverse channel that engages with the inclined surface 325, forms a mechanical position locking structure, eliminating the need for friction positioning and solving the problem of abnormal retraction of the spray boom 4. Simultaneously, the process of the slider 43 entering the transverse channel is completed naturally, requiring no additional operation steps. This achieves an automatic locking function after the spray boom 4 extends, effectively preventing accidental retraction due to liquid pressure or accidental contact during use, ensuring the continuity of rinsing operations. Furthermore, the design of the inclined surface 325 and the transverse channel ensures smooth locking and unlocking processes, avoiding the jamming phenomenon common in traditional mechanical snap-fit ​​structures and improving operational reliability.

[0029] In this embodiment, the spray bar 4 has a tapered structure that is narrower at the top and wider at the bottom. A first sealing ring 5 is provided at the end near the slider 43. The first sealing ring 5 is suitable for sealing the spray bar 4 with the inner wall of the rotating component 3 when the spray bar 4 is at its upper limit position. The tapered structure refers to the cross-sectional dimensions of the spray bar 4 gradually changing along the height direction. Specifically, it can be implemented using a truncated cone structure with a smaller diameter at the top than at the bottom. This structure allows for progressive contact with the inner wall of the rotating component 3 during the upward movement of the spray bar 4, reducing frictional resistance and enhancing guiding stability. When the spray bar 4 rises to its highest point along the spiral sliding groove 221 via the slider 43, the larger end of the tapered structure forms a tight fit with the inner wall of the rotating component 3. At this time, the first sealing ring 5 is compressed between the outer wall of the spray bar 4 and the inner wall of the rotating component 3, forming a circumferential sealing interface. This sealing interface effectively prevents liquid leakage from the gap between the spray bar 4 and the rotating component 3. Simultaneously, the guiding effect of the inclined surface 325 of the tapered structure ensures that the spray bar 4 maintains axial alignment during extension and retraction, avoiding seal failure due to misalignment. This application utilizes the synergistic effect of a conical structure and a sealing ring to form a double sealing mechanism when the spray boom 4 reaches its upper limit position. This solves the problems of unstable sealing and abnormal retraction after the spray boom 4 has extended to its full position, and the conical structure ensures precise alignment of the spray boom 4 at its limit position.

[0030] In this embodiment, the mounting tube 2 includes a mounting portion 21 suitable for threaded connection to the bottle mouth of the bottle 1 and a tube portion 22 suitable for extending into the bottle 1 and communicating with the internal space of the bottle 1. The mounting portion 21 and the tube portion 22 are fixedly connected by an ultrasonic hot-melt welding process. The mounting portion 21 is a structure for forming a detachable connection with the bottle mouth of the bottle 1, and can be implemented using a ring-shaped component with internal threads, the internal threads engaging with the external threads of the bottle mouth. The tube portion 22 is a structure for extending into the interior of the bottle 1 to form a liquid channel, and can be implemented using a hollow cylindrical tube with an outer diameter smaller than the inner diameter of the bottle mouth for easy insertion.

[0031] Specifically, after the mounting part 21 and the tube body 22 are independently formed, two positioning grooves are provided on the mounting part 21, forming an ultrasonic welding line. After the tube body 22 is installed on the mounting part 21 and positioned, an ultrasonic hot melt welding process is used to form a weld layer at the contact surface of the two, so that the mounting part 21 and the tube body 22 are combined into an integral structure. Here, the mounting part 21 is fixed to the bottle mouth by a threaded connection, and the tube body 22 extends into the bottle body 1 to form a liquid delivery channel. The split structure design allows the mounting part 21 and the tube body 22 to use different materials. For example, the mounting part 21 can be made of high-hardness plastic to enhance the strength of the threaded connection, and the tube body 22 can be made of corrosion-resistant material to extend its service life, while also facilitating production. The welding process avoids the chemical pollution risks that may be caused by traditional glue bonding, while ensuring the sealing of the connection and preventing liquid leakage.

[0032] Combination Figure 3 , Figure 6 , Figure 7 As shown, in this embodiment, the rotating component 3 includes an operating part 31 located outside the mounting tube 2 and a rotating part 32 located inside the tube 22. Vertical channels 323 are symmetrically arranged on both sides of the rotating part 32, and the vertical channels 323 connect the internal space of the bottle 1 and the telescopic channel 322. The operating part 31 is a component exposed on the outside of the mounting tube 2 for user rotation control; specifically, it can be implemented using a paddle structure with anti-slip textures on the surface for easy gripping and force application. The rotating part 32 is a component extending into the tube 22 and rotating synchronously with the operating part 31 to transmit rotational driving force. The symmetrical arrangement of the vertical channels 323 means that through-slots of the same height are mirrored on both sides of the rotating part 32; specifically, it can be a strip-shaped groove structure symmetrically distributed along the axis of the rotating part 32 to ensure balanced force during the extension and retraction of the spray bar 4. The connection between the internal space of the bottle body 1 and the telescopic channel 322 refers to the path formed by the vertical channel 323 for the liquid to flow from the bottle body 1 to the liquid outlet channel 41 of the spray bar 4. Specifically, this can be achieved by connecting the bottom end of the vertical channel 323 to the bottle body 1 and the top end to the telescopic area of ​​the spray bar 4.

[0033] When the user rotates the operating unit 31, the rotating unit 32 drives the spray bar 4 to rotate synchronously. The slider 43 of the spray bar 4 slides along the spiral sliding groove 221 to achieve extension and retraction. The vertical channels 323 are symmetrically distributed on both sides of the rotating unit 32, so that the liquid flows evenly from the bottle 1 into the spray bar 4 through the channels on both sides. At the same time, since the slider 43 extends out from the vertical channel 323, when the rotating unit 32 rotates, it acts on the spray bar 4 through the side wall of the vertical channel 323, driving the spray bar 4 to slide along the spiral sliding groove 221. Simultaneously, the slider 43 moves up and down along the vertical channel 323. After the vertical channel 323 is connected to the extension and retraction channel 322, the liquid is always stably delivered through the channel during the extension and retraction of the spray bar 4, avoiding interruption of liquid flow due to the displacement of the spray bar 4.

[0034] This solution achieves non-contact rotation control through an external operating unit 31, preventing users from touching the head of the spray bar 4. The symmetrical layout of the vertical channel 323 ensures balanced force on the spray bar 4. Combined with the spiral groove guide structure, it ensures smooth extension and retraction and precise positioning, overcoming the defects of traditional friction positioning that is prone to loosening. This solves the problems of easy contamination during nozzle operation and unstable extension and retraction positioning. Through rotation drive and symmetrical flow channel design, it achieves non-contact operation and continuous liquid delivery, improving the hygiene and reliability of the flusher.

[0035] In a preferred embodiment, the end of the rotating member 3 exposed above the mounting tube 2 forms an umbrella-shaped structure. An annular protrusion 311 is formed inside the umbrella-shaped structure, located outside the rotating part 32, to form a slot 312 for mounting the tube 2 between the annular protrusion 311 and the rotating part 32. The annular protrusion 311 and the tube 22 are connected by a second sealing ring 6.

[0036] The umbrella-shaped structure refers to an extended structure where the radial dimension of the exposed portion of the rotating part 3 is larger than the diameter of the mounting tube 2. This can be achieved through injection molding. The annular protrusion 311 is a ring-shaped protrusion extending outwards around the outer wall of the rotating part 32. The slot 312 formed between the protrusion and the rotating part 32 accommodates the top end of the tube 22 for axial positioning. When the top edge of the tube 22 is embedded in the slot 312, the annular protrusion 311 restricts its radial displacement by wrapping around the top edge of the tube 22. Simultaneously, the second sealing ring 6 forms a liquid-tight barrier between the annular protrusion 311 and the tube 22. The extended portion of the umbrella-shaped structure serves two purposes: firstly, it allows for contact with the user's palm, increasing the friction area and making rotation easier; secondly, it enhances the product's aesthetics. During the rotation of the rotating part 3, the assembly relationship between the slot 312 and the tube 22 maintains the relative positional stability between the rotating part 3 and the mounting tube 2. The second sealing ring 6 prevents liquid in the bottle 1 from leaking out along the assembly gap between the tube 22 and the rotating part 3. By using the axial limiting fit between the slot 312 and the annular protrusion 311, combined with the elastic compensation effect of the second sealing ring 6, the sealing reliability is improved while simplifying the assembly process.

[0037] In a preferred embodiment, the tube body 22 is provided with a plurality of drainage grooves 222 that are suitable for communicating with one of the vertical channels 323 along its height direction; when the outlet of the spray bar 4 is facing downward and the spray bar 4 is at its upper limit position, the height of the drainage groove 222 is close to but not lower than the inlet 42 of the spray bar 4, so as to reduce the residual liquid in the bottle body 1.

[0038] The gradient arrangement refers to the axial distribution of multiple drainage grooves 222 along the tube body 22, which can be achieved by a stepped arrangement or an equidistant arrangement. The vertical spacing of each drainage groove 222 can be adjusted according to the capacity of the bottle body 1. The drainage groove 222 is an arc-shaped groove penetrating the wall thickness of the tube body 22, which can be achieved by milling or injection molding, and is used to connect the internal space of the bottle body 1 with the vertical channel 323. The liquid inlet 42 is the opening at the bottom of the spray bar 4 that connects to the inside of the bottle body 1. When the rotating component 3 drives the spray bar 4 to its limit position, the liquid inlet 42 at the bottom of the spray bar 4 is aligned with or adjacent to the drainage groove 222. At this time, residual liquid in the bottle body 1 can be discharged outward through the drainage groove 222. When the bottle body 1 is inverted, the liquid inlet 42 is located below or at the same height as the drainage groove 222, allowing liquid to be discharged through the liquid inlet 42 as much as possible, reducing residual liquid in the bottle body 1. The multiple drainage channels 222 arranged in a gradient can adapt to different liquid levels. For example, when the bottle 1 is tilted, at least one drainage channel 222 can contact the liquid surface to drain the liquid. This design can effectively reduce the amount of liquid residue in the bottle 1 and avoid hygiene problems or resource waste caused by liquid retention.

[0039] Combination Figure 4 and Figure 5 As shown, in a preferred embodiment, the rotating part 32 of the rotating member 3 includes a first sector 326 and a second sector 327, and two symmetrical vertical channels 323 are formed between the first sector 326 and the second sector 327; the bottom ends of the first sector 326 and the second sector 327 extend out of the tube body 22 and are provided with external threads for connecting the nut member 7; a connector 8 is provided between the nut member 7 and the bottom end of the mounting tube body 2, and the connector 8 is provided with a support part 81 suitable for embedding into the vertical channel 323 to support the first sector 326 and the second sector 327; the top end of the support part 81 and the first sector 326 and the second sector 327 respectively form a second transverse channel 321 suitable for the slider 43 to enter, so as to limit the height of the spray bar 4 to the lower limit position.

[0040] The first sector 326 and the second sector 327 refer to arc-shaped structures distributed circumferentially, which can be implemented using an integrated injection-molded structure. Their symmetrical distribution can improve the structural stability of the rotating part 32. The support part 81 refers to a boss structure extending from the connector 8 into the vertical channel 323, which provides radial support to the sector by embedding itself into the vertical channel 323. The second transverse channel 321 refers to the horizontal groove formed between the top of the support part 81 and the sector, which can be implemented by milling or molding, and is used to accommodate the slider 43 to limit the spray bar 4. When the rotating part 3 is rotated to the lower limit position, the slider 43 moves along the spiral sliding groove 221 to the top of the support part 81. At this time, the slider 43 enters the second transverse channel 321 and is horizontally constrained, thereby preventing the spray bar 4 from sliding further downward. After the support part 81 is embedded in the vertical channel 323, it prevents the first sector part 326 and the second sector part 327 from deforming due to force through radial support. The cooperation between the nut part 7 and the connecting part 8 fixes the relative position of the rotating part 32 and the mounting tube 2, preventing the rotating part 3 from falling out of the mounting tube 2. That is, the rotating part 3 is confined within the mounting tube 2 and will not move up and down, which also ensures that the spray bar 4 remains stable at the lower limit position. The cross-sectional shape of the support part 81 can be rectangular or semi-circular. For example, a semi-circular design can reduce the frictional resistance with the slider 43. The surface of the nut part 7 can be provided with anti-slip texture to enhance the ease of operation when manually tightening.

[0041] This solution achieves rigid constraint through the mechanical limiting structure of the second transverse channel 321, preventing the spray bar 4 from extending abnormally when retracted. Simultaneously, the cooperation between the support part 81 and the fan-shaped part enhances the torsional strength of the rotating part 32, resolving the issue of component deformation caused by frequent rotation.

[0042] In this embodiment, bottle 1 is a pressable elastic bottle. A pressable elastic bottle refers to a container made of a material with elastic deformation capabilities, specifically silicone or thermoplastic elastomers. When subjected to external pressure, bottle 1 can deform and return to its original shape, thereby driving liquid flow through the pressure difference generated by the deformation. When the user presses bottle 1, the internal volume of bottle 1 decreases, and liquid enters the liquid outlet channel 41 of the spray bar 4 through the mounting tube 2 and is sprayed outwards. Due to the elastic recovery capability of bottle 1, it automatically returns to its original shape after the pressure is released, creating a negative pressure to draw in external air or liquid. This design does not rely on an external power source; liquid delivery is achieved through physical pressing. A sealing gasket is provided between bottle 1 and mounting tube 2 to ensure a tight seal. It should be noted that in other embodiments, a pump can also be used to drive the liquid inside the bottle to spray out from the spray bar 4.

[0043] In this embodiment, the outer end of the spray bar 4 is provided with a plurality of water spray holes, which can be set on the side of the spray bar 4 to improve the rinsing effect.

[0044] The above-described embodiments allow users to easily control the extension and retraction of the spray bar 4 via the operating components. The spray bar 4 exhibits high stability when extended or retracted to its limit position, making it easy to carry.

[0045] It should be understood that the above are only preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

[0046] The accompanying drawings used in the above description of the embodiments only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

Claims

1. A telescopic structure, characterized in that, Also includes: The mounting tube is adapted to extend into the bottle body, and its inner wall has at least one spiral sliding groove formed along the central axis. A rotating component is rotatably disposed within the mounting tube, and an internal telescopic channel is formed therein, with a vertical channel communicating with the telescopic channel along the height direction. The spray bar is movably disposed within the telescopic channel of the rotating component, and has an internal liquid outlet channel. Its exterior is provided with a slider that extends out of the vertical channel and is adapted to slide along the spiral sliding groove. By driving the rotating component to rotate, the slider can be driven to slide along the spiral sliding groove, causing the spray bar to extend and retract within the mounting tube.

2. The telescopic structure according to claim 1, characterized in that, Two spiral sliding grooves are symmetrically arranged on the left and right, and two sliders are symmetrically arranged on the left and right to be adapted to slide in the two spiral sliding grooves respectively.

3. The telescopic structure according to claim 2, characterized in that, The vertical channel has a first horizontal channel at one end near the bottle opening. The first horizontal channel is connected to the vertical channel by an inclined plane. When the slider slides to the upper limit position, it can enter the horizontal channel to limit the spray bar to the height of the upper limit position.

4. The telescopic structure according to claim 3, characterized in that, The spray bar has a tapered structure that is narrower at the top and wider at the bottom. A first sealing ring is provided at one end near the slider. The first sealing ring is adapted to seal the spray bar against the inner wall of the rotating component when the spray bar is in the upper limit position.

5. The telescopic structure according to claim 3, characterized in that, The mounting tube includes a mounting part suitable for threaded connection to the bottle mouth of the bottle body and a tube part suitable for extending into the bottle body and communicating with the internal space of the bottle body. The mounting part and the tube part are fixedly connected by ultrasonic hot melt welding process.

6. The telescopic structure according to claim 5, characterized in that, The rotating component includes an operating part located outside the mounting tube and a rotating part located inside the tube. The vertical channel is symmetrically arranged on both sides of the rotating part, and the vertical channel connects the internal space of the bottle and the telescopic channel.

7. The telescopic structure according to claim 6, characterized in that, The end of the rotating component exposed above the mounting tube forms an umbrella-shaped structure. An annular protrusion is formed inside the umbrella-shaped structure on the outside of the rotating part to form a slot for mounting the tube part between the annular protrusion and the rotating part. The annular protrusion and the tube part are connected by a second sealing ring.

8. The telescopic structure according to claim 5, characterized in that, The tube body is provided with a plurality of drainage grooves along its height direction, which are suitable for communicating with one of the vertical channels; when the outlet of the spray bar is facing downward and the spray bar is at its upper limit position, the height of the drainage groove is close to the inlet of the spray bar but not lower than the inlet, so as to reduce the residual liquid in the bottle.

9. The telescopic structure according to claim 6, characterized in that, The rotating part of the rotating component includes a first sector-shaped part and a second sector-shaped part, and two symmetrical vertical channels are formed between the first sector-shaped part and the second sector-shaped part; the bottom ends of the first sector-shaped part and the second sector-shaped part extend out of the tube body and are provided with external threads for connecting the nut; a connector is provided between the nut and the bottom end of the mounting tube body, and the connector is provided with a support part suitable for embedding into the vertical channel to support the first sector-shaped part and the second sector-shaped part; a second transverse channel suitable for the slider to enter is formed between the top end of the support part and the first sector-shaped part and the second sector-shaped part, respectively, to limit the height of the spray bar at the lower limit position.

10. A manual flushing device, characterized in that, It includes a bottle body and a telescopic structure as described in any one of claims 1 to 9, the telescopic structure being adapted to be installed on the bottle body.

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