End cap for a rubber tube and rubber tube

Abstract

The utility model provides a kind of end cap and rubber tube for rubber tube, end cap includes hollow tubular main part, its inner wall is equipped with annular first sealing portion extending along axial direction.The first sealing portion is contacted and abutted with the contained part of other components in end cap, forms pre-sealing narrow band, blocks content leakage before rubber bag is pressed.Through end cap is set in rubber tube, the sealing protection of flexible containment rubber bag unbroken state is realized, glue leakage pollution barrel is avoided.The rubber tube can be reused, only needs to replace flexible containment rubber bag, significantly reduces consumable cost and resource waste, has economy and environmental protection benefit.

Description

Technical Field

[0001] This utility model relates to the field of processing, and in particular to an end cap and a rubber tube for use as a rubber tube. Background Technology

[0002] As an indispensable fluid control device in modern industrial and civilian fields, glue cartridges are widely used in building curtain wall sealing, automotive parts bonding, electronic component packaging, and home decoration repair. Their main function is to achieve directional and quantitative delivery of high-viscosity colloids, sealants, and other materials. In precision machining processes, the performance of glue cartridges directly affects product yield and operational efficiency. Furthermore, with the deepening of intelligent manufacturing and green production concepts, the structural reliability, environmental adaptability, and operational economy of glue cartridges have become key indicators for evaluating equipment performance.

[0003] However, most current mainstream rubber cartridge products adopt a non-removable, disposable design, which presents several problems: First, from an environmental perspective, the integrated design of components such as pistons, end caps, and push rods leads to localized wear and rubber residue, ultimately rendering the entire cartridge unusable. A large number of engineering plastic components cannot be recycled, causing environmental issues. Second, in terms of storage and transportation, the rigid, fixed geometry and internal support structure of disposable cartridges severely restrict stacking density, resulting in numerous ineffective gaps during transportation and higher costs. Finally, in terms of usage costs, the frequent need to replace cartridges increases overall user expenses, especially in high-frequency operation scenarios where consumable costs far exceed the initial equipment investment, and the interruption of operation for equipment replacement significantly reduces continuous operation efficiency.

[0004] In conclusion, there are currently no glue cartridges designed to address these issues. Utility Model Content

[0005] In order to overcome the above-mentioned technical defects, the purpose of this utility model is to provide an end cap and a rubber tube for a rubber tube.

[0006] This utility model discloses an end cap for a rubber tube, the end cap including a main body.

[0007] The main body has a cylindrical structure. The inner wall of the main body is provided with a first sealing part, which is an annular structure and extends along a first direction to contact and abut against the enclosed part of other components located inside the end cap, so that the enclosed part is sealed inside the end cap.

[0008] This end cap utilizes the inner wall of its cylindrical main body to provide an annular first sealing portion that extends axially to form a narrow sealing band. When fitted onto other components (such as the body of a rubber cartridge), it can pre-seal other components (such as flexible rubber bags) located at least partially within the end cap before they are subjected to pressure, effectively preventing leakage of contents (such as glue) in an unpunctured state. This enables repeated use of the rubber cartridge, thereby greatly optimizing its economic and environmental benefits.

[0009] Preferably, the end cap further includes a cap body portion. The cap body portion is disposed on one side of the main body portion and is fixedly connected to the main body portion, so that the main body portion and the cap body portion together form a cap-like structure, thereby fitting over other components. The cap body portion is also provided with an opening, so that the contents of at least part of the other components disposed within the end cap can flow out through the opening.

[0010] The opening design of the cover creates a directional channel for the contents to flow out, and also provides a structural basis for other refined designs.

[0011] Preferably, the cover portion is further provided with at least one piercing tooth. The piercing tooth is located on one side of the opening in the second direction to pierce the enclosed portion. The second direction is perpendicular to the first direction. The tip of the piercing tooth is positioned towards the center of the body.

[0012] By adding piercing teeth to the opening side of the cap and precisely positioning them in a second direction, when the flexible plastic bag is squeezed by external force (e.g., by piston compression), the piercing teeth automatically penetrate the bag to form a drainage port. This eliminates the need for manual pre-piercing, improves assembly efficiency, avoids the risk of human error, and prevents leakage and contamination of the plastic cartridge caused by placing the flexible plastic bag in after piercing. The design of the piercing tooth tips facing the center of the main body concentrates the piercing force on the central area of ​​the bag. This structure can precisely control the piercing depth, prevent irregular tearing of the bag caused by tooth tip deviation, and ensure a regular outlet shape to match the subsequent sealing structure.

[0013] Preferably, the cover portion further includes a second sealing portion. The second sealing portion is formed by a recess in the cover portion away from the main body portion. The projections of the opening and the piercing teeth in the first direction coincide with the second sealing portion.

[0014] The second sealing section formed by the indentation in the cap ensures that the puncture teeth and the opening coincide within their projected areas. Upon puncture, an annular sealing zone forms around the puncture hole in the bag, forcing the contents to flow out unidirectionally through the opening and completely preventing the risk of adhesive backflow along the gaps between the puncture teeth and contaminating the cartridge.

[0015] Preferably, at least one piercing tooth comprises two piercing teeth. The two piercing teeth are arranged parallel to each other and spaced apart on the cover portion.

[0016] Each piercing tooth extends in the first direction to the outside of the second sealing portion and into the inside of the first sealing portion.

[0017] This can be understood as follows: First, the flexible plastic bag is sealed on both sides by metal rings, which inevitably creates circumferential wrinkles extending towards the center. In larger flexible plastic bags, the width and depth of these wrinkles also increase. If only a single puncture tooth is used, it might pierce into one of the wrinkles, preventing complete penetration and causing operational inconvenience. Therefore, by using two parallel puncture teeth, at least one hole can be created in the flexible plastic bag. Second, the two parallel puncture teeth create two openings in the flexible plastic bag, allowing the glue inside to flow out more smoothly from the openings created by the puncture teeth.

[0018] Preferably, the cover body is further provided with an adhesive guide groove, one end of which is connected to the opening and the other end is connected to the second sealing part, so that the contents of other components disposed in the second sealing part can flow out through the opening via the adhesive guide groove.

[0019] The adhesive guide groove connects the second sealing section and the opening to form a directional flow channel. After puncture, the contents are confined within the sealing section and guided through the adhesive guide groove to the opening for concentrated outflow, preventing the adhesive from spreading disorderly within the cap body. This structure is particularly optimized for path control of highly fluid adhesives, reducing residue.

[0020] Preferably, a receiving groove is also provided inside the main body. The receiving groove is waist-shaped, elliptical, or circular. The receiving groove is located at the center of the cover and is formed by the recess of the cover away from the main body, thus forming a receiving space.

[0021] By incorporating a waist-shaped groove, the flexible adhesive bag is sealed on both sides by a metal ring. The waist-shaped groove perfectly accommodates this sealing ring, creating a flat surface at the cap, which facilitates adhesive flow and ensures a tight seal. Furthermore, compared to a round hole, the waist-shaped hole is more accommodating to the metal ring's assembly tolerances, overcoming the angular sensitivity of a round hole and preventing displacement of the sealing ring during assembly.

[0022] Preferably, the first sealing part is further provided with at least one sealing ring, which is disposed around the inner surface of the first sealing part. And when there are at least two sealing rings, the sealing rings are arranged sequentially at intervals along the first direction.

[0023] This design allows the first sealing section to further seal the flexible plastic bag via at least one sealing ring. When the sealing ring is multi-ringed, a stepped sealing barrier can be formed. When the plastic bag expands under pressure, each sealing ring progressively blocks the adhesive, providing multiple redundancies even if a single seal fails, significantly improving leakage prevention during operation.

[0024] Preferably, the main body is further provided with a plurality of guide grooves extending along the first direction, and a plurality of limiting portions extending in the circumferential direction and protruding from the surface of the main body.

[0025] The guide groove and the limiting part constitute a spatial positioning system: the axial guide groove ensures the circumferential positioning accuracy of the rubber tube, avoiding assembly misalignment that could affect the alignment of the puncture structure. The radial limiting part restricts the axial movement of the rubber tube, maintains a constant compression of the sealing part, and ensures easy assembly of the end cap, precise assembly, and stable use.

[0026] A second aspect of this application also provides a rubber sleeve, including a first component. The first component includes an end cap, a body, and a piston as described in any of the foregoing embodiments.

[0027] The tube body is a cylindrical structure extending along a first direction and open at both ends. An internal space is also formed within the tube body to accommodate a flexible plastic bag.

[0028] The end cap is fitted onto one side of the cylinder body.

[0029] The piston is located on the other side of the cylinder and slides inside the cylinder in the first direction to squeeze the flexible plastic bag, causing the contents of the flexible plastic bag to flow out through the end cap.

[0030] By applying the aforementioned end caps and combining them with the bidirectional symmetrical design of the cartridge, the innovative bidirectional reusability of the cartridge is achieved: the symmetrical openings at both ends of the cartridge, coupled with the detachable end caps, allow the piston to complete compression in one direction. Afterward, simply replacing the internal disposable flexible cartridge bag and reversing the cartridge allows for reversible operation. The multiple sealing structures of the end caps completely prevent the adhesive from contacting the cartridge body, ensuring the cartridge remains uncontaminated during long-term cyclical use. Through the reuse of core components and the replacement of only the consumable bag, operating costs are significantly reduced, industrial waste is minimized, and the user's economic and environmental benefits are improved. Attached Figure Description

[0031] Figure 1 A three-dimensional structural schematic diagram of the end cap provided in this application; Figure 2 An enlarged structural schematic diagram of the end cap provided in this application; Figure 3 A three-dimensional structural diagram of the body of the rubber cartridge provided in this application; Figure 4An enlarged structural diagram of the body of the rubber cartridge provided in this application; Figure 5 A three-dimensional structural diagram of the piston fixing part of the rubber sleeve provided in this application; Figure 6 A three-dimensional structural schematic diagram of the piston fixing part of the rubber sleeve provided in this application from another perspective; Figure 7 This is a three-dimensional structural diagram of the piston engagement part of the rubber cartridge provided in this application.

[0032] Reference numerals: 100, glue tube; 200, first component; 300. End cap; 1. Main body; 11. First sealing part; 111. Sealing ring; 12. Guide groove; 13. Limiting part; 2. Cover body; 21. Opening; 22. Piercing tooth; 23. Second sealing part; 24. Adhesive guide groove; 25. Receiving groove; 400. Body; 31. Accommodation space; 32. Guide section; 33. Limiting groove; 34. Guide groove; 35. First end; 36. Second end; 500, Piston; 5. First part; 51. Fixing part; 52. Snap-fitting part; 521. Spring piece; 5211. Guide part; 522. Fixing ring; 53. First limiting rib; 54. First limiting groove; 600, Second Component; z, first direction; x, second direction. Detailed Implementation

[0033] The advantages of this utility model are further illustrated below with reference to the accompanying drawings and specific embodiments.

[0034] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0035] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0036] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, can be interpreted as "when," "in response to determination," or "when," or "in the event of a determination." In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0038] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrating this invention and has no specific meaning in itself. Therefore, "module" and "part" can be used interchangeably.

[0039] Please see Figures 1-2 , Figure 1 A three-dimensional structural schematic diagram of the end cap provided in this application; Figure 2 This is an enlarged structural schematic diagram of the end cap provided in this application.

[0040] like Figures 1-2 As shown, this application provides an end cap 300 for a rubber tube 100, the end cap 300 including a main body 1.

[0041] The main body 1 has a cylindrical structure. A first sealing portion 11 is provided on the inner wall of the main body 1. The first sealing portion 11 is an annular structure and extends along a first direction z to contact and abut against the enclosed portions of other components located within the end cap 300, thereby sealing the enclosed portions within the end cap 300. The first direction z mentioned here can be understood as the axial direction of the cylindrical body 400.

[0042] The end cap 300 utilizes the inner wall of the cylindrical main body 1 to provide an annular first sealing part 11 that extends axially and forms a narrow sealing band. When fitted onto other components (such as the cylinder body 400 of the rubber tube 100), it can achieve pre-sealing before other components (such as flexible plastic bags) located at least partially within the end cap 300 are subjected to pressure, effectively preventing leakage of contents (such as glue) in an unpunctured state.

[0043] The above is an explanation of the basic concept of this application. The following will describe the possible specific implementation methods of each component in conjunction with the accompanying drawings.

[0044] Firstly, regarding the main body 1, the specific structure of the first sealing part 11 is not limited.

[0045] like Figure 2 As shown, in one possible implementation, the first sealing part 11 is further provided with at least one sealing ring 111, which is disposed around the inner surface of the first sealing part 11. When there are at least two sealing rings 111, the sealing rings 111 are arranged sequentially at intervals along the first direction z.

[0046] Through this design, the first sealing part 11 can further seal the flexible plastic bag through at least one sealing ring 111. When the at least one sealing ring 111 is multiple sealing rings 111, a stepped sealing barrier can also be formed. When the plastic bag expands under pressure, each sealing ring 111 blocks the adhesive step by step. Even if a single layer of seal fails, there are multiple redundancies to ensure protection, significantly improving the leak prevention capability during operation.

[0047] Secondly, the end cap 300 may include more structures for further refinement of the design.

[0048] like Figures 1-2 As shown, in one possible implementation, the end cap 300 further includes a cap body 2. The cap body 2 is disposed on one side of the main body 1 and is fixedly connected to the main body 1, so that the main body 1 and the cap body 2 together form a cap-like structure, which is then fitted onto other components. The cap body 2 is also provided with an opening 21, so that the contents of at least part of the other components disposed within the end cap 300 can flow out through the opening 21.

[0049] The opening 21 of the cover 2 is designed to create a directional channel for the contents to flow out, and also provides a structural basis for other refined designs.

[0050] Furthermore, the cover portion 2 is also provided with at least one piercing tooth 22. The piercing tooth 22 is provided on one side of the opening 21 in the second direction x to pierce the enclosed portion. The second direction x is perpendicular to the first direction z. The tip of the piercing tooth 22 is positioned towards the center of the main body portion 1. Accordingly, the second direction x can be understood as the radial direction of the cylinder body 400.

[0051] By adding puncture teeth 22 to the opening 21 side of the cap portion 2 and precisely positioning them in the second direction x, when the flexible plastic bag is squeezed by external force (e.g., by the piston 500), the puncture teeth 22 automatically penetrate the bag to form a drainage port, eliminating the need for manual pre-puncture, improving assembly efficiency, avoiding the risk of human error, and preventing the risk of glue leakage and contamination of the glue cartridge 100 caused by placing the flexible plastic bag into the cartridge 100 after puncture. The design of the puncture teeth 22 with their tips facing the center of the main body portion 1 concentrates the puncture force on the central area of ​​the bag. This structure can precisely control the puncture depth, prevent irregular tearing of the bag caused by tooth tip deviation, and ensure that the glue outlet shape is regular to match the subsequent sealing structure.

[0052] Those skilled in the art will understand that after the puncture tooth 22 punctures the flexible plastic bag, the punctured portion of the bag needs to be sealed.

[0053] Therefore, in one possible implementation, such as Figures 1-2 As shown, the cover portion 2 is also provided with a second sealing portion 23. The second sealing portion 23 is formed by recessing the cover portion 2 in a direction away from the main body portion 1. The projections of the opening 21 and the piercing teeth 22 in the first direction z coincide with the second sealing portion 23.

[0054] The second sealing portion 23 formed by the recess in the cap portion 2 causes the puncture teeth 22 to coincide with the opening 21 within its projection area. At the moment of puncture, an annular sealing area is formed around the puncture hole in the bag, forcing the contents to flow out unidirectionally through the opening 21, completely blocking the risk of adhesive back seeping along the gaps between the puncture teeth 22 and contaminating the glue cartridge 100.

[0055] Furthermore, the specific number of at least one piercing tooth 22 is not limited. In one possible implementation, at least one piercing tooth 22 includes two piercing teeth 22. The two piercing teeth 22 are arranged parallel to each other and spaced apart on the cover portion 2.

[0056] Each piercing tooth 22 extends outward from the second sealing portion 23 in the first direction z and into the first sealing portion 11.

[0057] This can be understood as follows: The two piercing teeth 22 are arranged in parallel. First, the flexible adhesive bag is sealed on both sides by metal rings, which inevitably creates circumferential wrinkles extending towards the center. In the case of a large flexible adhesive bag, the width and depth of these wrinkles will also increase. If only a single piercing tooth 22 is provided, it may pierce the wrinkle precisely, preventing the bag from being pierced completely in one go, causing operational inconvenience. Therefore, by providing two parallel piercing teeth 22, it is ensured that each piercing tooth 22 can create at least one hole in the flexible adhesive bag. Second, the two parallel piercing teeth 22 can create two openings in the flexible adhesive bag, allowing the adhesive in the bag to flow out more smoothly from the opening 21 pierced by the piercing tooth 22, preventing the adhesive from blocking the opening 21 due to a single opening 21, thus avoiding poor adhesive flow. Furthermore, setting the extension length of the piercing teeth 22 ensures the normal operation of the first sealing part 11 and the second sealing part 23, guaranteeing that the adhesive flows out only along a predetermined path.

[0058] Of course, in another possible implementation, at least one piercing tooth 22 may also include three, four or more piercing teeth 22, which is not limited herein.

[0059] The above structure enables a better seal for the flexible adhesive bag, and the adhesive guide groove 24 can further guide the flow of adhesive, thereby obtaining a stable and reliable adhesive flow path.

[0060] like Figure 1 As shown, in one possible implementation, the cover portion 2 is further provided with an adhesive guide groove 24. One end of the adhesive guide groove 24 is connected to the opening 21, and the other end is connected to the second sealing portion 23, so that the contents of other components disposed in the second sealing portion 23 can flow out through the adhesive guide groove 24 and the opening 21.

[0061] The adhesive guide groove 24 connects the second sealing part 23 and the opening 21 to form a directional flow channel. After puncture, the contents are confined within the sealing part and guided through the adhesive guide groove 24 to the opening 21 for concentrated outflow, preventing the adhesive from spreading disorderly within the cap body 2. This structure particularly optimizes the path control of highly fluid adhesives, reducing residue.

[0062] In one possible implementation, a receiving groove 25 is also provided in the main body 1. The receiving groove 25 is waist-shaped, elliptical, or circular. The receiving groove 25 is located at the center of the cover 2 and is formed by the cover 2 being recessed in a direction away from the main body 1, thus forming a receiving space 31.

[0063] By providing the receiving groove 25, the flexible adhesive bag is sealed on both sides by metal rings, so the receiving groove 25 can just accommodate the sealing ring, thereby forming a flat surface at the cover part 2, which facilitates the outflow of adhesive and ensures sealing. Furthermore, compared to a round hole, the oblong hole can accommodate the assembly tolerance of the metal ring, overcome the angular sensitivity of the round hole in alignment, and prevent the offset caused by displacement of the sealing ring during assembly.

[0064] The above is a structural description of the end cap 300 for the rubber tube 100 provided in this application.

[0065] Please see Figures 3-7 , Figure 3 A three-dimensional structural diagram of the body of the rubber cartridge provided in this application; Figure 4 An enlarged structural diagram of the body of the rubber cartridge provided in this application; Figure 5 A three-dimensional structural diagram of the piston fixing part of the rubber sleeve provided in this application; Figure 6 A three-dimensional structural schematic diagram of the piston fixing part of the rubber sleeve provided in this application from another perspective; Figure 7 This is a three-dimensional structural diagram of the piston engagement part of the rubber cartridge provided in this application.

[0066] like Figures 3-7 As shown, a second aspect of this application also provides a rubber sleeve 100, including a first component 200. The first component 200 includes an end cap 300, a body 400, and a piston 500 as in any of the foregoing embodiments.

[0067] The cylindrical body 400 is a cylindrical structure extending along the first direction z and open at both ends. An accommodating space 31 is also formed inside the cylindrical body 400 for accommodating a flexible plastic bag.

[0068] The end cap 300 is fitted onto one side of the cylinder body 400.

[0069] The piston 500 is located on the other side of the cylinder 400 and slides within the cylinder 400 along the first direction z to squeeze the flexible plastic bag, causing the contents of the flexible plastic bag to flow out through the end cap 300.

[0070] Those skilled in the art will understand that the above is a description of the overall structure of the glue cartridge 100. The specific structure of each component of the glue cartridge 100 is also not limited.

[0071] First, the specific structure of piston 500 is not limited.

[0072] like Figures 5-7 As shown, in one possible implementation, the piston 500 includes a first part 5. The first part 5 includes a fixing part 51 and a snap-fit ​​part 52 that are sequentially arranged and fixed to each other in a first direction z.

[0073] The engaging portion 52 is arranged around the outer periphery of the fixing portion 51 and extends outward, and is fixedly connected to the fixing portion 51. When the engaging portion 52 is engaged in an external device, the piston 500 slides along the first direction z inside the external device.

[0074] The piston 500 is locked to the cylinder 400 via the snap-fit ​​part 52, achieving linear sliding in the first direction z and restricting excess degrees of freedom. When the snap-fit ​​part 52 is engaged with other components, the piston 500 can only slide along the axial direction (first direction z), preventing radial offset or rotation, improving the orientation and stability of the piston 500's movement in other components, and simplifying the assembly structure.

[0075] Furthermore, in one possible implementation, the snap-fit ​​portion 52 includes a plurality of outwardly extending spring tabs 521 and a retaining ring 522. The ends of the spring tabs 521 away from the retaining ring 522 are tilted relative to the retaining ring 522 in a first direction z. The retaining ring 522 is fitted onto the fixing portion 51 and fixed by a plurality of limiting portions 13 disposed on the surface of the fixing portion 51 facing the retaining ring 522, thereby fixing the snap-fit ​​portion 52 to the fixing portion 51.

[0076] This can be understood as the snap-fit ​​part 52 being specifically designed as a spring plate 521 structure. Through the upward-curving design of one end of the spring plate 521, it undergoes elastic deformation under pressure. When the piston 500 is inside the cylinder 400, the spring plate 521 elastically abuts against the cylinder 400, achieving a tighter limiting effect and ensuring a good seal when the cylinder 400 and piston 500 are engaged. The retaining ring 522 is fixed to the retaining part 51 by the limiting part 13, ensuring the overall robustness of the snap-fit ​​part 52. This design balances ease of assembly with reliability in use, preventing loosening after long-term use.

[0077] Continue to refer to Figures 5-7 Furthermore, in one possible implementation, at least one guide portion 5211 protruding from the outer side of the plurality of spring pieces 521 is provided, the guide portion 5211 extending in the second direction x.

[0078] By further providing multiple guide portions 5211 on the outer side of multiple spring pieces 521, the piston 500 can be further restricted in radial displacement during sliding by the cooperation between the guide portions 5211 and the guide grooves 34 correspondingly provided in the cylinder body 400, thereby enhancing the accuracy of the motion trajectory and enabling the piston 500 to run smoothly along the preset trajectory.

[0079] The above describes the possible specific structure of the snap-fit ​​part 52. As mentioned above, the piston 500 may include more or fewer structures.

[0080] Therefore, in one possible implementation, the piston 500 further includes a second part (not shown in the figure), the structure of which is the same as that of the first part 5. The first part 5 and the second part are disposed opposite to each other, and the fixing part 51 of the second part is fitted with and fixed to the fixing part 51 of the first part 5.

[0081] This can be understood as follows: Piston 500 also includes a second part with a structure completely identical to the first part 5. By symmetrically adding the second part, piston 500 forms a double-ended propulsion structure. It slides bidirectionally within the cylinder 400, thereby balancing the force on piston 500, reducing unilateral wear, and extending service life. Furthermore, when sliding to the end in one direction, there is no need to distinguish the front or back of piston 500; simply reverse the side and insert piston 500, further simplifying assembly operations during use.

[0082] Those skilled in the art will understand that the specific fixing method of Part 5 and Part 2 is also not limited.

[0083] In one possible implementation, such as Figures 5-7 As shown, the first part 5 is provided with a first limiting rib 53 and a first limiting groove 54 arranged circumferentially. The second part is provided with a second limiting rib (not shown in the figure) and a second limiting groove (not shown in the figure) arranged circumferentially. The first limiting rib 53 and the second limiting groove cooperate, and the first limiting groove 54 and the second limiting rib cooperate, thereby fastening and fixing the first part 5 and the second part together.

[0084] This structural design enables rapid assembly and secure fixing of the first part 5 and the second part. The dual fixing mechanism of the circumferentially designed first limiting rib 53 and second limiting groove, as well as the second limiting rib and first limiting groove 54, not only improves the overall structural rigidity of the piston 500, but also enhances the fixing effect between the various components of the piston 500.

[0085] Secondly, the structure of the 400mm cylinder is also unrestricted.

[0086] like Figures 3-4 As shown, in one possible implementation, the cylinder body 400 extends along a first direction z and has a first end 35 and a second end 36 disposed opposite each other in the first direction z. An end cap 300 is fitted onto the first end 35 or the second end 36 of the cylinder body 400. When the piston 500 is placed inside the cylinder body 400, the piston 500 is pushed by an external force and reciprocates within the cylinder body 400.

[0087] This can be understood as follows: The body 400 of the glue cartridge 100 provided in this application, by setting the first end 35 and the second end 36 to be connected to the end cap 300, allows both the first end 35 and the second end 36 of the body 400 to serve as glue dispensing ends. The end cap 300 is connected to the first end 35 and the second end 36 of the body 400 by a sleeve-fitting method. After the piston 500 is pushed from the second end 36 to the first end 35, the end cap 300 only needs to be removed, new contents put in, and the end cap 300 can be sleeved onto the second end 36 for continued use, realizing quick-release and bidirectional use of the glue cartridge 100. Furthermore, the body 400 also has a piston 500 that can reciprocate along the body 400. These designs allow the glue cartridge 100 provided in this application to be reused repeatedly, thereby greatly saving usage costs and reducing resource waste.

[0088] Furthermore, the cylinder body 400 is provided with a plurality of guide grooves 34 extending along the first direction z. The structure of the guide grooves 34 corresponds to the guide portion 5211 of the spring piece 521, so that the guide portion 5211 slides within the guide grooves 34.

[0089] The corresponding engagement between the guide groove 34 inside the cylinder 400 and the guide part 5211 of the piston 500 forces the piston 500 to slide along a preset trajectory, completely eliminating the risk of radial offset. This is especially suitable for high-viscosity fluid propulsion scenarios, ensuring uniform dispensing.

[0090] The above describes the structural design of the barrel 400 and piston 500 in the rubber sleeve 100 provided in this application. The structural design of the barrel 400 and end cap 300 will be described below.

[0091] like Figures 1-4 As shown above, the main body 1 of the end cap 300 is provided with a plurality of guide grooves 12 extending along the first direction z, and a plurality of limiting portions 13 extending in the circumferential direction and protruding from the surface of the main body 1.

[0092] Correspondingly, both sides of the cylinder body 400 are provided with multiple guide portions 32 extending along the first direction z, and multiple limiting grooves 33 extending in the circumferential direction.

[0093] This can be understood as follows: the end cap 300 and the cylinder body 400 are respectively provided with dual fixing structures in the axial (first direction z) and circumferential directions. Multiple guide grooves 12 extend axially and cooperate with corresponding guide portions 32 that also extend axially. Multiple limiting portions 13 extend circumferentially and cooperate with corresponding limiting grooves 33 that also extend circumferentially, thereby achieving precise positioning and locking of the end cap 300 and the cylinder body 400, preventing the end cap 300 from falling off under pressure.

[0094] It should be noted that the glue cartridge 100 provided in this application may also include more components to achieve more complex functions or to adapt to the special needs of certain types of glue.

[0095] For example, such as Figures 1-7 As shown, in one possible implementation, the glue cartridge 100 further includes a second component 600, which has the same structure as the first component 200 and is arranged side by side. Exemplarily, the flexible glue-containing pouch of the first component 200 is provided with a base glue, and the flexible glue-containing pouch of the second component 600 is provided with a hardener.

[0096] At this point, the glue container 100 can be used to store and extrude the AB glue. Specifically, the base glue can be acrylic-modified epoxy or epoxy resin, or contain catalysts and other additives. The curing agent can be modified amine or other curing agents, or contain catalysts and other additives.

[0097] It should be noted that the specific size and connection method of the first component 200 and the second component 600 are not limited. In one possible implementation, the diameter of the first component 200 is larger than the diameter of the second component 600. In another possible implementation, the diameter of the first component 200 may be equal to the diameter of the second component 600, thereby achieving certain special functions. Those skilled in the art can design according to their needs, and this application does not impose any restrictions.

[0098] The first component 200 and the second component 600, arranged side-by-side, can respectively contain the base adhesive and the hardener, achieving synchronous and proportional propagation of the two-component fluids through their identical structure. This ensures uniform curing reaction and is suitable for two-component adhesive applications requiring precise mixing ratios. Furthermore, because all components of the glue cartridge 100 are reusable, the specific contents of the first component 200 and the second component 600 can be adjusted at any time during use, requiring only the replacement of a new flexible adhesive bag, thus making the glue cartridge 100 more flexible in its use.

[0099] It should be noted that the embodiments of this utility model have better implementability and are not intended to limit this utility model in any way. Any person skilled in the art may use the above-disclosed technical content to change or modify it into equivalent effective embodiments. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An end cap for a rubber tube, characterized in that, Including the main body; The main body has a cylindrical structure; the inner wall of the main body is provided with a first sealing part, which is an annular structure and extends along a first direction to contact and abut against the enclosed part of other components located in the end cap, so that the enclosed part is sealed in the end cap.

2. The end cap as described in claim 1, characterized in that, The end cap also includes a cover body portion, which is disposed on one side of the main body portion and fixedly connected to the main body portion, so that the main body portion and the cover body portion together form a cover-like structure, thereby fitting onto other components; the cover body portion is also provided with an opening, so that the contents of at least part of the other components disposed within the end cap can flow out through the opening.

3. The end cap as described in claim 2, characterized in that, The cover portion is also provided with at least one piercing tooth; the piercing tooth is located on one side of the opening in the second direction to pierce the enclosed portion; the second direction is perpendicular to the first direction; The tip of the piercing tooth is positioned towards the center of the main body.

4. The end cap as described in claim 3, characterized in that, The cover portion is further provided with a second sealing portion; the second sealing portion is formed by the cover portion being recessed in a direction away from the main body portion; the projection of the opening and the piercing tooth in the first direction coincides with the second sealing portion.

5. The end cap as described in claim 4, characterized in that, The at least one piercing tooth includes two piercing teeth; the two piercing teeth are arranged parallel to each other and spaced apart on the cover portion; Each of the piercing teeth extends out of the second sealing portion and into the first sealing portion in the first direction.

6. The end cap as described in claim 4, characterized in that, The cover portion is also provided with an adhesive guide groove, one end of which is connected to the opening and the other end is connected to the second sealing portion, so that the contents of other components disposed in the second sealing portion can flow out through the opening via the adhesive guide groove.

7. The end cap as described in claim 2, characterized in that, The main body is also provided with a receiving groove, which is waist-shaped, elliptical, or circular. The receiving groove is located at the center of the cover part and is formed by the cover part being recessed away from the main body part, thus forming a receiving space.

8. The end cap as claimed in claim 1, characterized in that, The first sealing part is further provided with at least one sealing ring, which is disposed around the inner surface of the first sealing part; and when there are at least two sealing rings, the sealing rings are arranged at intervals along the first direction.

9. The end cap as claimed in claim 1, characterized in that, The main body is also provided with a plurality of guide grooves extending along the first direction, and a plurality of limiting portions extending in the circumferential direction and protruding from the surface of the main body.

10. A rubber tube, characterized in that, Includes a first component; the first component includes the end cap, the cylinder, and the piston as described in claims 1-9; The cylindrical body is a cylindrical structure that extends along a first direction and is open at both ends; the interior of the cylindrical body also forms a receiving space for accommodating the flexible plastic bag; The end cap is fitted onto one side of the cylinder body; The piston is located on the other side of the cylinder and slides within the cylinder along the first direction to squeeze the flexible plastic bag, causing the contents of the flexible plastic bag to flow out through the end cap.

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