Environment-friendly durable buckling type hose structure

Abstract

The invention relates to the technical field of covers, and particularly discloses an environment-friendly durable buckling type hose structure which is characterized in that a hose body connecting section and a hose container are integrally arranged or fixedly combined; the end sealing surface is arranged on the outer end surface of the tube body connecting section; the discharge hole is fixedly formed in one side of the end cover; the cover plate can be rotatably combined at the middle position of the end sealing surface through the rotating bulge; the excess material guide piece is arranged on the end cover on the inner side of the hose body connecting section, and is used for guiding the excess material when the substances in the hose container are about to be used up; the near-hole guiding piece is buckled on the outer side of the discharging hole and located in the pipe body connecting section, and the adjacent edge portions of the near-hole guiding piece and the excess material guiding piece are in a connected state; a pressure generating mechanism is disposed in the placement cavity. The hose container structure is reasonable in structure and capable of effectively leading out excess materials and keeping the discharge port clean.

Description

Technical Field

[0001] This invention relates to the field of flexible hose technology, specifically to an environmentally friendly and durable snap-fit ​​hose structure. Background Technology

[0002] While existing flexible tube containers (such as toothpaste, ointment, and cosmetic packaging) are simple in structure, inexpensive, and portable, they reveal significant practical shortcomings in long-term use. Firstly, the narrow, curved, or angled shoulder area (the transition zone between the tube body and the dispensing end cover) makes it difficult for users to completely expel residual paste or gel when squeezing the contents, resulting in considerable waste—uneconomical and environmentally unfriendly. Secondly, traditional flexible tubes typically have simple dispensing port designs lacking effective self-cleaning mechanisms. After each use, residual material inside and outside the dispensing hole easily adheres to the inner wall of the cover and around the opening, causing contamination. This not only affects aesthetics and hygiene but may also lead to leakage, scaling, and even bacterial growth when ambient temperatures rise (e.g., from body heat or weather conditions), severely degrading the user experience. While some existing improved hoses have attempted to address these issues by thickening the sealing cap or altering the outlet structure, they still cannot fundamentally balance the complete discharge of residual material with the self-cleaning function of the outlet. Therefore, there is an urgent need for a hose container structure that is rationally designed, can effectively discharge residual material, and keeps the outlet clean. Summary of the Invention

[0003] This application provides an environmentally friendly and durable snap-fit ​​hose structure, the main purpose of which is to achieve a hose container structure that is structurally reasonable, can effectively discharge excess material, and keeps the outlet clean.

[0004] To achieve the above objectives, embodiments of this application provide an environmentally friendly and durable snap-fit ​​hose structure, comprising: The tube connection section is either integrally installed with the hose container or fixedly connected to it. An end cover is provided on the outer end face of the tube body connecting section; The discharge port is fixedly located on one side of the end cover; The cover plate, which can be rotatably assembled at the center of the end cover by rotating the protrusion, can be fastened above the discharge hole; The residual material guide is provided on the end cover inside the tube body connecting section. The residual material guide is used to guide the remaining material through the inclined surface provided thereon towards the discharge hole when the material in the hose container is about to be used up, and a placement cavity is formed inside the residual material guide. The near-hole guide is fastened to the outside of the discharge hole and located inside the tube body connecting section. The near-hole guide and the adjacent edge of the residual material guide are in a connected state. A pressure generating mechanism is disposed in the cavity, the pressure generating mechanism is drivenly connected to the cover plate, and the output end of the pressure generating mechanism is connected to the inner cavity of the hose container.

[0005] In one feasible embodiment, the discharge hole is recessed on the end cover, and a sealing block is also provided on the cover plate. The sealing block can be inserted into the recessed discharge hole. A sealing protrusion is provided on the outer end of the side wall of the sealing block, and the sealing protrusion abuts tightly against the circumferential inner side wall of the discharge hole.

[0006] In one feasible embodiment, at least one reinforcing rib is provided on the outer wall of the end cover, and the rotating protrusion of the cover plate is rotatably disposed within the reinforcing rib, and a rotating cavity is provided in the reinforcing rib outside the rotating protrusion.

[0007] In one feasible embodiment, the end cover is further provided with: the edge of the movable groove is located inside the reinforcing rib; one end of the rotating protrusion of the cover plate connected to the cover plate is located in the movable groove; the outer end of the rotating protrusion is inserted into the rotating cavity of the reinforcing rib; two limiting strips are fixedly installed on the end cover inside the tube body connecting section, and the limiting strips are used to provide a linear movable track; a connecting hole is opened on the end cover, and the placement cavity is connected to the external air pressure through the connecting hole.

[0008] In one feasible implementation, a protruding eave is provided on the side wall of the cover plate away from the rotating protrusion end, and in the closed state of the cover plate, the protruding eave protrudes from the circumferential side wall of the end cover.

[0009] In one feasible embodiment, the near-hole guide includes: a reinforcing plate fixedly disposed between the adjacent sidewalls of the near-hole guide and the waste material guide, and disposed in an inclined state; a peripheral guide surface disposed at the edge of the near-hole guide and located on both sides of the guiding direction of the waste material guide; and a flow guide surface disposed at the edge of the near-hole guide in the guiding direction of the waste material guide; wherein the peripheral guide surface and the flow guide surface are both interconnected arc surfaces, and the peripheral guide surface and the flow guide surface have the highest protrusion position at the far end from the discharge hole, and the height gradually decreases towards the discharge hole.

[0010] In one feasible implementation, the pressure generating mechanism includes: a rotating protrusion driven by a following transverse component connected to the cover plate; an elastic diaphragm fixedly disposed on an inclined surface facing the inner cavity of the hose container in the residual material guide; and a diaphragm driving component with one end driven by the following transverse component and the other end connected to the middle of the elastic diaphragm, for driving the elastic diaphragm to switch between a protruding or recessed state to change the pressure in the inner cavity of the hose container during the opening and closing of the cover plate.

[0011] In one feasible embodiment, the following lateral movement assembly includes: a gear fixedly connected to the outer end of the rotating protrusion, the gear being located in the rotating cavity of the reinforcing rib; two rack rods horizontally movable and disposed in the placement cavity, and engaged with the limiting strip, the rack rods and the gear being meshed one-to-one; a synchronizing rod fixedly connected between the two rack rods; a limiting seat fixedly disposed in the placement cavity by a support seat fixed to the inner wall of the residual material guide; and a lateral movement block fixedly connected to the synchronizing rod, the lateral movement block also being slidably disposed in the inner cavity of the limiting seat, the lateral movement block being driveably connected to the diaphragm drive assembly.

[0012] In one feasible embodiment, the diaphragm driving assembly includes: a transverse rod that movably passes through the limiting seat and is connected to the transverse block; a vertically movable limiting frame fixedly disposed in the placement cavity, the middle of the vertically movable limiting frame forming a sliding channel coaxial with the elastic diaphragm; a diaphragm driving rod that is movably disposed in the sliding channel and movably connected to the elastic diaphragm in a vertical state, the other end of the diaphragm driving rod being rotatably connected to the outer end of the transverse rod via an inclined connecting rod.

[0013] In one feasible implementation, the inner cavity of the transverse block is further provided with a movable cavity, and the end of the transverse rod is further provided with a limiting movable end block smaller than the length of the movable cavity, which is used to release the transmission connection between the transverse block and the transverse rod in the initial stage of lifting the cover plate.

[0014] This application provides an environmentally friendly and durable snap-fit ​​hose structure. This structure improves the hose's efficiency and hygiene by integrating a residual material guiding and discharge mechanism and a negative pressure back-suction mechanism within the hose shoulder. The residual material guide and near-hole guide actively collect residual material from the hose shoulder and dead-angle areas during extrusion and smoothly guide it into the discharge hole, achieving near-complete discharge of contents, significantly reducing waste and achieving environmental protection and conservation. Simultaneously, the instantaneous negative pressure generated by the linkage transmission mechanism driving the elastic diaphragm when the cover is snapped shut slightly suctions residue from the discharge hole and its surroundings, effectively preventing material spillage and contamination, keeping the outlet clean and hygienic. This self-cleaning function is automatically achieved through the opening and closing of the cover, requiring no additional user operation, making it convenient and efficient. Furthermore, the overall structure of this invention is compact, with all functional components arranged inside the hose shoulder. The cooperation of reinforcing ribs, limiting strips, and transmission components ensures stable durability under long-term use, significantly improving product quality and user experience. Attached Figure Description

[0015] Figure 1 This diagram shows a schematic representation of the environmentally friendly and durable snap-fit ​​hose structure provided in an embodiment of this application at a first angle. Figure 2 This illustration shows a schematic diagram of the environmentally friendly and durable snap-fit ​​hose structure provided in an embodiment of this application at a second angle. Figure 3 A schematic diagram of the pressure generating mechanism provided in an embodiment of this application is shown; Figure 4 A schematic diagram of the following transverse movement component provided in an embodiment of this application is shown; Figure 5 A schematic diagram of the eaves structure provided in an embodiment of this application is shown; Figure 6 This paper shows a schematic cross-sectional view of the environmentally friendly and durable snap-fit ​​hose structure provided in an embodiment of this application. Figure 7 A schematic diagram of the structure of the movable groove provided in an embodiment of this application is shown; Figure 8 A schematic diagram of the structure of the active cavity provided in an embodiment of this application is shown.

[0016] In the diagram: 10. Pipe body connecting section; 20. End cover; 30. Discharge hole; 40. Cover plate; 50. Sealing block; 60. Reinforcing rib; 70. Excess material guide; 80. Near-hole guide; 90. Pressure generating mechanism; 21. Movable groove; 22. Limiting strip; 23. Connecting hole; 41. Eaves; 51. Sealing protrusion; 81. Reinforcing plate; 82. Peripheral guide surface; 83. Flow guide surface; 91. Following transverse movement assembly; 92. Diaphragm drive assembly; 93. Elastic diaphragm; 911. Gear; 912. Rack; 913. Synchronizing rod; 914. Transverse block; 915. Limiting seat; 916. Support seat; 921. Transverse rod; 922. Inclined connecting rod; 923. Diaphragm drive rod; 924. Vertical movable limiting frame; 925. Movable cavity; 926. Limiting movable end block. Detailed Implementation

[0017] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0018] Please see Figures 1 to 8 As shown, this application provides an environmentally friendly and durable snap-fit ​​hose structure, including: a hose body connecting section 10, an end cover 20, a discharge hole 30, a cover plate 40, a residual material guide 70, a near-hole guide 80, and a pressure generating mechanism 90; Specifically, the tube body connecting section 10 is integrally or fixedly connected to the hose container; the end cover 20 is set on the outer end face of the tube body connecting section 10; the discharge hole 30 is fixedly set on one side of the end cover 20; the cover plate 40 is rotatably assembled at the middle position of the end cover 20 by rotating the protrusion, and can be fastened above the discharge hole 30; the residual material guide 70 is set on the end cover 20 on the inner side of the tube body connecting section 10, and the residual material guide 70 is used to guide the remaining material through the inclined surface set on it towards the discharge hole 30 when the material in the hose container is about to be used up, and a placement cavity is formed inside the residual material guide 70; the near hole guide 80 is fastened to the outside of the discharge hole 30 and is located inside the tube body connecting section 10, and the adjacent sides of the near hole guide 80 and the residual material guide 70 are connected; the pressure generating mechanism 90 is set in the placement cavity, the pressure generating mechanism 90 is drivenly connected to the cover plate 40, and the output end of the pressure generating mechanism 90 is connected to the inner cavity of the hose container.

[0019] The environmentally friendly and durable snap-fit ​​hose structure provided in this application solves the two major problems of residual material and outlet contamination simultaneously by constructing a dual mechanism of physical guidance and pressure regulation. Specifically, the hose body connecting section 10 serves as the basic structure to achieve a stable connection with the hose container, while the end cover 20 provides an installation platform for functional components. The discharge port 30 adopts a lateral fixed setting to form a material outlet, such as the extrusion outlet of toothpaste or cosmetics. The cover plate 40 achieves opening and closing control through a rotating protrusion. Its snap-fit ​​action can trigger pressure changes inside the hose container, such as positive or negative pressure, providing auxiliary discharge and back suction of residual material from the discharge port 30 after use, avoiding material squeezing and overflow caused by the snap-fit ​​of the cover plate 40. The residual material guide 70 has a built-in inclined surface structure, which forcibly changes the flow direction of residual material during the material depletion stage. Especially when used in conjunction with the user to invert the product or to shake it with external force, it eliminates dead corner residue on the hose shoulder through physical guidance. The near-hole guide 80 and the residual material guide 70 form a continuous guiding path, and their connection ensures a smooth transition of material from the hose body to the outlet. The pressure generating mechanism 90 is linked to the cover plate 40 to establish a pressure regulation mechanism in the cavity. The opening and closing process of the cover plate 40 changes the internal volume of the hose, generating a negative pressure back suction effect to remove outlet residue.

[0020] like Figure 1 and Figure 6 As shown, in some examples, the discharge hole 30 is further recessed on the end cover 20, and a sealing block 50 is also provided on the cover plate 40. The sealing block 50 can be inserted into the recessed discharge hole 30. A sealing protrusion 51 is provided on the outer end of the side wall of the sealing block 50, and the sealing protrusion 51 abuts tightly against the circumferential inner side wall of the discharge hole 30.

[0021] In this example, a double-sealing structure achieves both outlet cleaning and enhanced sealing. First, the discharge port 30 is designed as a recessed structure, forming a recessed space to accommodate residual material and prevent its diffusion on the pipe opening plane. The sealing block 50 interlocks with the recessed port, physically isolating the internal and external environments. The sealing protrusion 51 uses an interference fit design, forming an annular elastic pressure at the outer end of the sealing block 50's sidewall. When the cover plate 40 is closed, the sealing protrusion 51 and the circumferential inner wall of the discharge port 30 create a radial compression seal, effectively preventing residual material from seeping out from the gaps in the port wall. The recessed port structure, combined with the double seal of the block, forms a three-dimensional sealing interface when closed and confines any potentially residual material within the recessed space, preventing contamination of the inside of the cover plate 40.

[0022] like Figure 1 As shown, in some examples, at least one reinforcing rib 60 is further provided on the outer wall of the end cover 20, and the rotating protrusion of the cover plate 40 is rotatably disposed in the reinforcing rib 60, and a rotating cavity is provided in the reinforcing rib 60 outside the rotating protrusion.

[0023] In this example, the structural strength of the outer wall of the end cover 20 is enhanced by setting a reinforcing rib 60, which prevents deformation of the end cover 20 due to concentrated force when the cover plate 40 rotates, and also reduces the structural springback stability during injection molding cooling. The rotating protrusion of the cover plate 40 is directly set inside the reinforcing rib 60, and the solid structure of the reinforcing rib 60 provides a stable support base for the rotating protrusion, preventing axial displacement during rotation. A rotating cavity is set inside the reinforcing rib 60 on the outside of the rotating protrusion, providing an independent housing space for transmission components such as gear 911. This protects the transmission components from external compression, and the solid structure of the reinforcing rib 60 forms a wrapping support for the rotating cavity, ensuring that the meshing transmission of gear 911 and rack 912 always maintains precise alignment. Therefore, embedding the rotating mechanism into the reinforcing rib 60 improves the structural strength while achieving a compact layout of the transmission components, solving the problem of structural fatigue fracture that easily occurs in the rotating shaft area of ​​traditional hose cover plates 40.

[0024] like Figure 1 and Figure 4 As shown, in some examples, the end cover 20 is further provided with: a movable groove 21, two limiting strips 22 and a connecting hole 23. The edge of the movable groove 21 is located inside the reinforcing rib 60. The end of the rotating protrusion of the cover plate 40 connected to the cover plate 40 is located in the movable groove 21, and the outer end of the rotating protrusion is inserted into the rotating cavity of the reinforcing rib 60. The two limiting strips 22 are fixedly installed on the end cover 20 inside the tube body connecting section 10. The limiting strips 22 are used to provide a linear movable track. The connecting hole 23 is opened on the end cover 20, and the cavity is connected to the external air pressure through the connecting hole 23.

[0025] In this example, the edge of the movable groove 21 is located inside the reinforcing rib 60, so that the range of motion of the rotating protrusion of the cover plate 40 within the movable groove 21 is constrained by the spatial structure of the reinforcing rib 60. This ensures the freedom of movement of the rotating protrusion when opening and closing the cover plate 40, and also forms a rotation fulcrum through the rotation cavity of the reinforcing rib 60, preventing the rotating protrusion from leaving the installation position. The limiting strip 22 is fixed inside the end cover 20, providing a linear motion track for the rack and pinion 912 assembly, ensuring that the meshing transmission of the gear 911 and the rack is always on the same plane, preventing jamming or wear caused by the offset of the transmission components. The connecting hole 23 directly connects the installation cavity to the external environment, so that the deformation of the elastic diaphragm 93 during the operation of the pressure generating mechanism 90 will not create positive or negative pressure accumulation in the closed cavity, reducing the difficulty of switching the diaphragm's protrusion and indentation.

[0026] like Figure 5 As shown, in some examples, further, a protrusion 41 is provided on the side wall of the cover plate 40 away from the rotating protrusion end, and the protrusion 41 protrudes from the circumferential side wall of the end cover 20 when the cover plate 40 is fastened.

[0027] In this example, by providing a protruding eave 41 structure at the end of the cover plate 40 away from the pivot point, the protruding design of the eave 41 provides a clear point of force application when the user opens the cover plate 40, avoiding direct contact between the fingers and the pipe surface where there may be residual material.

[0028] like Figure 6 As shown, in some examples, the near-hole guide 80 further includes: a reinforcing plate 81, a peripheral guide surface 82, and a flow guide surface 83. The reinforcing plate 81 is fixedly disposed between the adjacent sidewalls of the near-hole guide 80 and the waste material guide 70, and is disposed in an inclined state. The peripheral guide surface 82 is disposed at the edge of the near-hole guide 80 and is located on both sides of the guide direction of the waste material guide 70. The flow guide surface 83 is disposed at the edge of the near-hole guide 80 in the guide direction of the waste material guide 70. The peripheral guide surface 82 and the flow guide surface 83 are both interconnected arc surfaces. The peripheral guide surface 82 and the flow guide surface 83 have the highest protrusion position at the far end from the discharge hole 30, and the height gradually decreases towards the discharge hole 30.

[0029] In this example, a secondary flow guidance function for the collected material is achieved by constructing a near-hole guide 80 structure with specific geometric features. The inclined reinforcing plate 81 connects the near-hole guide 80 and the residual material guide 70, forming a transitional support surface for material flow, ensuring structural strength while avoiding dead zones. The peripheral guide surface 82 and the flow guide surface 83 are connected by continuous arc surfaces to form an annular flow channel. The peripheral guide surface 82, located on both sides of the residual material guide 70, is responsible for constraining the lateral diffusion of material, while the flow guide surface 83, located in the flow direction, forms the main material channel. The specially designed arc surface height gradient feature utilizes the material's own flow tendency to create a natural flow trend from high to low (when the product is inverted or subjected to a throwing force). The highest point is set far from the discharge hole 30 to effectively capture residual material at different locations, and the gradually decreasing height change forms a sloping structure that accelerates flow. The interconnected arc surface structure eliminates the stagnation problem at traditional right-angle connections, ensuring that residual material from different directions can smoothly flow into the discharge hole 30.

[0030] like Figure 4 and Figure 6 and Figure 8As shown, in some examples, the pressure generating mechanism 90 further includes: a following lateral movement assembly 91, a diaphragm driving assembly 92, and an elastic diaphragm 93. The following lateral movement assembly 91 is driven to the rotating protrusion of the cover plate 40. The elastic diaphragm 93 is fixedly disposed in the residual material guide 70 on an inclined surface facing the inner cavity of the hose container. One end of the diaphragm driving assembly 92 is driven to the following lateral movement assembly 91, and the other end is connected to the middle of the elastic diaphragm 93, for driving the elastic diaphragm 93 to switch between a protruding or recessed state to change the pressure in the inner cavity of the hose container during the opening and closing of the cover plate 40.

[0031] In this example, the self-cleaning function is achieved through the combined action of mechanical linkage and pressure regulation. The following lateral movement component 91 converts the circular motion of the cover plate 40 into linear displacement, providing power input for pressure changes. The elastic diaphragm 93, as the pressure regulation actuator, directly changes the internal volume of the hose by its protruding or concave state, creating a positive or negative pressure environment. The diaphragm drive component 92, as the motion conversion mechanism, converts the lateral displacement into the vertical deformation of the diaphragm. When the cover plate 40 is closed, the diaphragm is driven to concave inward, increasing the internal volume of the hose and generating negative pressure, drawing back residual material near the discharge port 30. When the cover plate 40 is opened, the diaphragm resets, creating positive pressure and providing auxiliary pressure for the next extrusion. These three components form a closed-loop transmission through mechanical connection, allowing the regular opening and closing of the cover plate 40 to automatically trigger pressure changes, achieving dynamic cleaning of residual material without additional operation.

[0032] like Figure 4 and Figure 6 As shown, in some examples, the following transverse component 91 further includes: two gears 911, two racks 912, a synchronizing rod 913, a transverse block 914, and a limiting seat 915. The gears 911 are fixedly connected to the outer end of the rotating protrusion and are located in the rotating cavity of the reinforcing rib 60. The two racks 912 are horizontally movable and arranged in the placement cavity and engaged in the limiting strip 22. The racks 912 and gears 911 are meshed one-to-one. The synchronizing rod 913 is fixedly connected between the two racks 912. The limiting seat 915 is fixedly arranged in the placement cavity by a support seat 916 fixed to the inner wall of the residual material guide 70. The transverse block 914 is fixedly connected to the synchronizing rod 913 and is also slidably arranged in the inner cavity of the limiting seat 915. The transverse block 914 is driveably connected to the diaphragm drive component 92.

[0033] In this example, the symmetrical meshing structure of the double gear 911 and the double rack 912 converts the rotational motion of the cover plate 40 into linear motion. The gear 911 is fixed to the rotating protrusion to ensure direct transmission of force, while the rack 912's engagement within the limiting strip 22 ensures the linear accuracy of the motion trajectory. The synchronizing rod 913 connecting the two racks 912 achieves synchronicity of dual-sided transmission, avoiding motion deviation caused by unilateral force. The limiting seat 915 is fixed to the inner wall of the guide member via the support seat 916, providing a stable sliding track for the transverse block 914 and ensuring no deviation during transmission. The fixed connection between the transverse block 914 and the synchronizing rod 913, combined with its sliding arrangement within the limiting seat 915, ensures reliable motion transmission and, through the guiding effect of the limiting seat 915, ensures the accuracy of the pressure generating mechanism 90's action. The transverse block 914's transverse connection with the diaphragm drive assembly 92 provides a stable power output mechanism for the subsequent driving of the elastic diaphragm 93.

[0034] like Figure 6 and Figure 8 As shown, in some examples, the diaphragm drive assembly 92 further includes: a transverse rod 921, a connecting rod, a diaphragm drive rod 923, and a vertical movable limit frame 924. The transverse rod 921 is movably inserted through the limit seat 915 and connected to the transverse block 914. The vertical movable limit frame 924 is fixedly disposed in the mounting cavity, and a sliding channel coaxial with the elastic diaphragm 93 is formed in the middle of the vertical movable limit frame 924. The diaphragm drive rod 923 is movably disposed in the sliding channel and is movably connected to the elastic diaphragm 93 in a vertical state. The other end of the diaphragm drive rod 923 is rotatably connected to the outer end of the transverse rod 921 through an inclined connecting rod 922.

[0035] In this example, horizontal motion transmission is achieved through the connection between the transverse rod 921 and the transverse block 914. The coaxial sliding channel formed by the vertical movable limit frame 924 provides vertical guidance for the diaphragm drive rod 923, ensuring uniform force on the elastic diaphragm 93. The inclined connecting rod 922 converts the horizontal motion of the transverse rod 921 into the vertical motion of the diaphragm drive rod 923, amplifying the driving force through the lever principle. The structural design of the vertical movable limit frame 924 ensures the coaxiality of the transmission path and eliminates lateral offset through the constraint of the sliding channel, making the convex or concave deformation of the elastic diaphragm 93 completely controlled by the opening and closing angle of the cover plate 40. The rotational connection of the inclined connecting rod 922 effectively decomposes the lateral stress during the transmission process and avoids motion jamming. This ensures that the pressure generating mechanism 90 maintains consistent action during repeated opening and closing of the cover plate 40.

[0036] like Figure 8As shown, in some examples, the transverse block 914 is further provided with a movable cavity 925 in its inner cavity, and the end of the transverse rod 921 is provided with a limiting movable end block 926 that is shorter than the length of the movable cavity 925, which is used to release the transmission connection between the transverse block 914 and the transverse rod 921 in the initial stage of lifting the cover plate 40.

[0037] In this example, the movable cavity 925 within the transverse block 914 forms a clearance fit with the limiting movable end block 926 at the end of the transverse rod 921. Initially, when the cover 40 is opened, the limiting movable end block 926 of the transverse rod 921 can move freely within the movable cavity 925 without moving the transverse block 914, at which point the pressure generating mechanism 90 remains stationary. This design ensures that the limiting movable end block 926 only contacts the end wall of the movable cavity 925 to establish effective transmission after the cover 40 has opened to a specific angle. This staged transmission mechanism avoids accidental triggering of the pressure generating mechanism 90 during the initial opening of the cover 40, preventing premature release of material from the hose container due to positive pressure, while also ensuring that the pressure generating mechanism 90 operates synchronously when the cover 40 is fully opened. This ensures that the system's action timing perfectly matches the user's operating logic.

[0038] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. The term "two or more" includes two or more cases.

[0039] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. An environmentally friendly and durable snap-fit ​​flexible hose structure, characterized in that, include: The tube body connecting section (10) is integrally or fixedly connected with the hose container; An end cover (20) is provided on the outer end face of the tube body connecting section (10); The discharge hole (30) is fixedly disposed on one side of the end cover (20); The cover plate (40) is rotatably mounted at the middle position of the end cover (20) by rotating the protrusion and can be fastened above the discharge hole (30); The residual material guide (70) is provided on the end cover (20) inside the tube body connecting section (10). The residual material guide (70) is used to guide the remaining material through the inclined surface provided on it towards the discharge hole (30) when the material in the hose container is about to be used up. The residual material guide (70) forms a placement cavity. The near hole guide (80) is fastened to the outside of the discharge hole (30) and located inside the tube body connecting section (10). The near hole guide (80) and the adjacent side of the residual material guide (70) are in a connected state. A pressure generating mechanism (90) is disposed in the placement cavity. The pressure generating mechanism (90) is drivenly connected to the cover plate (40), and the output end of the pressure generating mechanism (90) is connected to the inner cavity of the hose container.

2. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 1, characterized in that: The discharge hole (30) is recessed on the end cover (20), and a sealing block (50) is also provided on the cover plate (40). The sealing block (50) can be inserted into the recessed discharge hole (30). A sealing protrusion (51) is provided on the outer end of the side wall of the sealing plug (50), and the sealing protrusion (51) abuts tightly against the circumferential inner side wall of the discharge hole (30).

3. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 1, characterized in that: At least one reinforcing rib (60) is provided on the outer wall of the end cover (20), and the rotating protrusion of the cover plate (40) is rotatably disposed in the reinforcing rib (60), and a rotating cavity is provided in the reinforcing rib (60) on the outer side of the rotating protrusion.

4. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 3, characterized in that: The end cover (20) is also provided with: The movable groove (21) has its edge located inside the reinforcing rib (60). The rotating protrusion of the cover plate (40) is connected to the end of the cover plate (40) in the movable groove (21), and the outer end of the rotating protrusion is inserted into the rotating cavity of the reinforcing rib (60). Two limiting strips (22) are fixedly installed on the end cover (20) inside the tube body connecting section (10), and the limiting strips (22) are used to provide a straight moving track; A connecting hole (23) is provided on the end cover (20), and the mounting cavity is connected to the external air pressure through the connecting hole (23).

5. The environmentally friendly and durable snap-fit ​​hose structure according to claim 4, characterized in that: An eave (41) is provided on the side wall of the cover plate (40) away from the rotating protrusion. When the cover plate (40) is fastened, the eave (41) protrudes from the circumferential side wall of the end cover (20).

6. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 4, characterized in that: The near-hole guide (80) includes: A reinforcing plate (81) is fixedly disposed between the adjacent side walls of the near hole guide (80) and the excess material guide (70), and is disposed in an inclined state; The peripheral guide surface (82) is provided at the edge of the near hole guide (80) and is located on both sides of the guide direction of the excess material guide (70); The flow guide surface (83) is located at the edge of the near hole guide (80) in the guiding direction of the residual material guide (70); The peripheral guide surface (82) and the flow guide surface (83) are both interconnected arc surfaces. The peripheral guide surface (82) and the flow guide surface (83) are at their highest protrusions at the far end from the discharge hole (30), and their height gradually decreases towards the discharge hole (30).

7. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 4, characterized in that: The pressure generating mechanism (90) includes: Following the transverse component (91), the rotating protrusion connected to the cover plate (40) is driven; An elastic diaphragm (93) is fixedly disposed on the inclined surface of the residual material guide (70) facing the inner cavity of the hose container; The diaphragm drive assembly (92) is connected at one end to the following transverse assembly (91) and at the other end to the middle of the elastic diaphragm (93). It is used to drive the elastic diaphragm (93) to switch between a convex or concave state to change the pressure in the inner cavity of the hose container during the opening and closing of the cover plate (40).

8. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 7, characterized in that: The following lateral movement component (91) includes: Two gears (911) are fixedly connected to the outer end of the rotating protrusion, and the gears (911) are located in the rotating cavity of the reinforcing rib (60); Two rack rods (912) are horizontally movable and are set in the mounting cavity and engaged in the limiting strip (22). The rack rods (912) and the gears (911) are meshed one-to-one. Synchronizing rod (913) is fixedly connected between the two rack rods (912); The limiting seat (915) is fixedly installed in the placement cavity by a support seat (916) fixed on the inner wall of the residual material guide (70); A transverse block (914) is fixedly connected to the synchronizing rod (913). The transverse block (914) is also slidably disposed in the inner cavity of the limiting seat (915). The transverse block (914) is driveably connected to the diaphragm drive assembly (92).

9. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 8, characterized in that: The diaphragm drive assembly (92) includes: A transverse lever (921) is movably inserted through the limiting seat (915) and connected to the transverse block (914); A vertical movable limiting frame (924) is fixedly installed in the placement cavity, and a sliding channel coaxial with the elastic diaphragm (93) is formed in the middle of the vertical movable limiting frame (924). A diaphragm drive rod (923) is movably disposed in the sliding channel and is movably connected to the elastic diaphragm (93) in a vertical state. The other end of the diaphragm drive rod (923) is rotatably connected to the outer end of the transverse rod (921) via an inclined connecting rod (922).

10. The environmentally friendly and durable snap-fit ​​flexible hose structure according to claim 9, characterized in that: The transverse block (914) is also provided with a movable cavity (925) in its inner cavity, and the end of the transverse rod (921) is also provided with a limiting movable end block (926) that is shorter than the length of the movable cavity (925), which is used to release the transmission connection between the transverse block (914) and the transverse rod (921) in the initial stage of lifting the cover plate (40).

Images