An open mouth structure for ease of use
By integrating the top cone and cutter into the opening device structure, the problem of low opening efficiency for aluminum and plastic tubes is solved, achieving efficient and safe opening operations, and suitable for various rigid tube packaging.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG SHENGYE CHEM TECH CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-06-26
AI Technical Summary
Existing methods for opening aluminum and plastic tubes are inefficient, have inconsistent shapes, and pose a risk of operational damage. Furthermore, existing tube openers are not suitable for packaging various types of rigid tubes.
Design an easy-to-use pipe opener structure that integrates a top cone opening mechanism and a cutting opening mechanism, including an opening top cone, a positioning cylinder seat, a plastic pipe knife holder, an opening cutter, and a chip collection box. It adopts a bolt and magnetic limit type for easy disassembly and installation, and is suitable for opening aluminum sheet sealed pipes and plastic rigid pipes.
It achieves efficient and rapid opening of different ends, with consistent opening shape and size, reducing the risk of damage to the opening device, extending its service life and improving the stability of adhesive discharge.
Smart Images

Figure CN224411360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mouth opener technology, specifically to a mouth opener structure that is easy to use. Background Technology
[0002] In the field of sealing adhesives such as polyurethane, modified silane polyether, silicone, and modified polyurethane, adhesives are often packaged using aluminum foil flexible packaging, aluminum tubes, plastic tubes, 20L iron / plastic drums, and 200L iron drums. For example, CN218635148U provides a paper tube packaging, CN208004265U provides a large-mouth aluminum tube with a 14mm nozzle, CN216137593U provides an integrated sealing tube, and CN306467752S and CN303985909S each provide a silicone sealing tube. In comparison, aluminum tube and plastic tube packaging have the following characteristics: an integrated tube body, an opening in the middle of the packaging head, and the need for support when opening. Aluminum tubes are often opened by scissors or an awl to puncture the seal, while plastic tubes are often cut with a utility knife. These opening methods all have low opening efficiency, inconsistent opening shapes that often result in openings that are too small, and a certain risk of handling damage.
[0003] To address the opening issues of aluminum and plastic tubes, such as inconsistent opening shapes, excessively small openings, and low opening efficiency, utility patent CN217297249U provides an opening device for aluminum tube packaging. However, it still suffers from limited applicability and is not suitable for various rigid tube packaging applications. Therefore, an easy-to-use opening device structure is proposed. Utility Model Content
[0004] The purpose of this invention is to provide an easy-to-use opening device structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-use opening device structure, including a base, a top cone opening mechanism, and a cutter opening mechanism. The top cone opening mechanism and the cutter opening mechanism are both installed on the upper part of the base. The top cone opening mechanism includes an opening top cone and a positioning cylinder seat. The opening top cone is detachably installed on the upper part of the base, and the positioning cylinder seat is concentrically installed on the outside of the opening top cone.
[0006] The cutting mechanism includes a plastic tube cutter holder, an opening cutter, and a chip collection box. The plastic tube cutter holder is supported and installed on the upper part of the base. A cutter support plate and a strong magnet are provided on the inner groove side of the plastic tube cutter holder. The opening cutter is supported by the cutter support plate and is detachably installed in the middle of the plastic tube cutter holder by the strong magnet. The chip collection box is detachably installed on the groove side of the lower part of the plastic tube cutter holder.
[0007] Preferably, the open top cone is conical, and the upper part of the base is provided with a mounting screw hole, and the threaded part of the lower part of the open top cone is threadedly installed with the mounting screw hole.
[0008] Preferably, the positioning cylinder seat is cylindrical, and the lower part of the positioning cylinder seat is fixedly installed with the upper part of the base.
[0009] Preferably, the upper part of the base is provided with a tool holder positioning groove, and the side seat of the plastic tube tool holder is aligned and fitted with the tool holder positioning groove and fixedly installed to the base by welding.
[0010] Preferably, the plastic tube knife holder has a cutter mounting groove extending through both sides of the middle section, and the end of the open cutter is fitted and supported in the cutter mounting groove.
[0011] Preferably, the aforementioned cutter support plate is protruding and fixedly installed at the rear of the plastic tube cutter holder cavity. After installation, the lower part of the open cutter contacts and supports the upper part of the cutter support plate. The strong magnets are arranged in pairs, and the two sets of strong magnets are symmetrically fixedly installed on both sides of the rear of the plastic tube cutter holder cavity. After installation, the rear edge of the open cutter is attached to and attracted by the strong magnets. Cutter protection plates are fixedly installed on both sides of the upper part of the plastic tube cutter holder.
[0012] Preferably, the chip collection box is slidably fitted into the lower part of the slot cavity of the plastic tube cutter holder. The lower part of the slot cavity of the plastic tube cutter holder is provided with mounting guide grooves on both sides. After installation, the protrusion on the side of the chip collection box is slidably fitted into the mounting guide groove. The front middle part of the plastic tube cutter holder is provided with a mounting slot seat. A limit plug is slidably inserted into the slot in the middle of the mounting slot seat. After installation, the lower part of the limit plug is supported by the front side of the chip collection box.
[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:
[0014] 1. It adopts an integrated multi-purpose working structure, integrating the opening cone and opening cutter on the upper part of the base. It can be used for packaging opening of adhesives for aluminum sheet sealing tubes and plastic rigid tubes. The structure is simple and easy to use, and can meet the opening needs of various adhesive tubes.
[0015] 2. Conical opening cones and blade holder-supported opening cutters are used for different ends to achieve efficient and rapid opening of different ends. The opening quality is stable and the opening shape and size are consistent, which can effectively solve the problem of inconsistent opening shape and size at the ends and improve the stability of adhesive discharge.
[0016] 3. The opening cone and the opening cutter use bolt and magnetic limit type easy disassembly and installation structure respectively, which makes disassembly and replacement convenient. It can quickly replace the vulnerable parts and extend the service life. With the support and limit of the positioning cylinder seat and plastic tube knife holder, it can effectively reduce the risk of accidental damage to the opening device and improve the service life and safety of the opening device. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall installation three-dimensional structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the plastic tube knife holder installation structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the installation structure of the open top cone and chip collection box of this utility model;
[0021] Figure 4 For the present utility model Figure 3 Schematic diagram of the structure of region A in the middle;
[0022] Figure 5 This is a schematic diagram of the working and installation structure of the cutting and opening mechanism of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Base; 2. Open top cone; 3. Positioning cylinder seat; 4. Plastic tube knife holder; 5. Open cutter; 6. Chip collection box; 7. Mounting screw hole; 8. Knife holder positioning groove; 9. Cutter mounting groove; 10. Cutter support plate; 11. Adsorption strong magnet; 12. Cutter protection plate; 13. Mounting slot seat; 14. Limiting block. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.
[0026] Example
[0027] Please see Figure 1-5 This utility model provides a technical solution: an easy-to-use opening device structure, including a base 1, a top cone opening mechanism, and a cutting blade opening mechanism, made of galvanized iron with a thickness of 10mm, as shown in the attached figure. Figure 3 As shown, the base has two opposing supports on both sides, with a circular curved surface shape. The diameter of the circular curved surface is 60mm, and the distance between the circular slots is 80mm. The two sides are centrally supported, which can provide a foundation for the installation of other components and provide stable support during use. The top cone opening mechanism and the cutting blade opening mechanism are both installed on the upper part of the base 1. They can be used for the packaging opening of adhesives for aluminum sheet sealed tubes and plastic rigid tubes, respectively. It adopts an integrated multi-purpose working structure, integrating the opening top cone 2 and the opening cutter 5 on the upper part of the base 1. It can be used for the packaging opening of adhesives for aluminum sheet sealed tubes and plastic rigid tubes, respectively. The structure is simple and easy to use, and can meet the opening needs of various adhesive tube ends.
[0028] The top cone opening mechanism is used for the packaging opening of aluminum sheet sealed tubes. The mechanism includes an opening top cone 2 and a positioning cylinder seat 3. The opening top cone 2 is detachably installed on the upper part of the base 1. (See attached diagram for details.) Figure 3 As shown, the open top cone 2 is a conical column made of carbon steel. It is formed by turning a carbon steel bar with a diameter of 20mm and a total length of 40mm, machining a top cone and a bottom thread. The height of the top cone is 20mm. The height of the top cone of the positioning cylinder seat 3 is twice the bottom diameter, ensuring that the opening of the positioning cylinder seat 3 is labor-saving and efficient. The bottom thread is M12×1.5mm in size and 10mm in length. To facilitate the connection and installation of the open top cone 2, a mounting screw hole 7 is provided on the upper part of the base 1. The threaded part of the lower part of the open top cone 2 is threaded into the mounting screw hole 7, serving as a piercing tool for opening hard pipes. To facilitate the screwing and unscrewing of the open top cone 2, a 6mm deep M5 internal hexagonal hole is also provided at the center of the bottom of the open top cone 2.
[0029] As attached Figure 3As shown, the positioning cylinder seat 3 is concentrically installed on the outside of the open top cone 2. Specifically, the positioning cylinder seat 3 is a cylindrical galvanized iron pipe with a diameter of 50mm, a thickness of 2mm, and a height of 60mm. The lower part of the positioning cylinder seat 3 is fixedly installed on the upper part of the base 1, and its connection with the base 1 is achieved by spot welding. The open top cone 2 and the positioning cylinder seat 3 are installed with the same center, ensuring that the positioning cylinder seat 3 can correctly guide the hard tube to be drilled to be centered and aligned during use. The positioning cylinder seat 3 has two functions: when in use, it serves as a guide tool to guide the aluminum tube to the center of the opening; when not in use, it serves as a protective device for the open top cone 2 to prevent the open top cone 2 from being exposed and accidentally damaged.
[0030] The cutting and opening mechanism is used for opening plastic rigid pipes. The mechanism includes a plastic pipe cutter holder 4, an opening cutter 5, and a chip collection box 6. The plastic pipe cutter holder 4 is supported and mounted on the upper part of the base 1. (See attached diagram for details.) Figure 2 As shown, the plastic tube knife holder 4 is a galvanized square tube with an inner side length of 50mm and a thickness of 2mm, and a total length of 70mm. It is formed by laser drilling, sheet metal stamping, and bending. In order to facilitate the installation and positioning of the plastic tube knife holder 4, a knife holder positioning groove 8 is provided on the upper part of the base 1. The side seat of the plastic tube knife holder 4 is aligned and fitted with the knife holder positioning groove 8 and fixedly installed to the base 1 by welding. The connection between the plastic tube knife holder 4 and the base 1 is achieved by spot welding.
[0031] The slit cutter 5 uses a standard blade with a thickness of 0.5mm-0.8mm and a length of 54mm. Common utility knife blades can also be used. For easier installation and support of the slit cutter 5, see attached... Figure 5As shown, cutter mounting slots 9 are provided on both sides of the middle of the plastic pipe cutter holder 4. The end of the open-end cutter 5 is fitted and supported in the cutter mounting slot 9. The distance between the cutter holder positioning slot 8 and the rear wall of the plastic pipe cutter holder 4 is 6mm. This utilizes the plastic pipe cutter holder 4 as a limiting support during cutting. This distance is also the optimal cutting length for plastic rigid pipes. At this length, the opening is maximized, avoiding cutting off the opening threads. Excessive cutting is detrimental to the stability of the nozzle connection and ensures stable positioning during cutting, avoiding cutting the tapered part of the opening. In order to achieve the limiting installation of the open-end cutter 5, the inner groove side of the plastic pipe cutter holder 4 is... Equipped with a cutter support plate 10 and a strong magnet 11, the open-end cutter 5 is detachably installed in the middle of the plastic tube cutter holder 4, supported by the cutter support plate 10 and attracted by the strong magnet 11. Specifically, the cutter support plate 10 is protruding and fixedly installed at the rear of the groove cavity of the plastic tube cutter holder 4. After installation, the lower part of the open-end cutter 5 contacts and is supported by the upper part of the cutter support plate 10. The structure of the plastic tube cutter holder 4 achieves four-point support for the open-end cutter 5, namely the cutter holder positioning grooves 8 on both sides and the cutter support plate 10 on the side. The bottom surface of the cutter holder positioning groove 8 and the upper surface of the cutter support plate 10 are located on the same... The horizontal orientation ensures the cutter's stability and prevents breakage due to excessive shearing force. The strong magnets 11 are installed in pairs, with two sets symmetrically fixed to the rear sides of the slot in the plastic tube cutter holder 4. Each magnet 11 measures 10mm in length, 5mm in width, and 2mm in thickness. They are bonded to the plastic tube cutter holder 4 using epoxy glue or nail-free adhesive, and are fixed to the edge of the cutter holder positioning slot 8. After installation, the rear edge of the opening cutter 5 adheres to and is attracted to the strong magnets 11, preventing it from slipping during movement and ensuring the opening is secure. The cutting blade 5 is close to the side. The opening cone 2 and the opening cutting blade 5 are installed using bolts and magnetic limiters for easy disassembly and replacement. This allows for quick replacement of easily damaged parts and extends service life. With the support and limit provided by the positioning cylinder seat 3 and the plastic tube knife holder 4, the risk of accidental damage to the opening device can be effectively reduced, which is beneficial to improving the service life and safety of the opening device. Both sides of the upper part of the plastic tube knife holder 4 are fixedly installed with cutting blade protection plates 12. The cutting blade protection plates 12 have been chamfered, which effectively protects the opening cutting blade 5 and avoids the accidental risks brought by the cutting blade protection plates 12 themselves.
[0032] The chip collection box 6 is detachably installed on the slotted side of the lower part of the plastic pipe cutter holder 4 for collecting and removing waste material from the cut pipe. See attached document for details. Figure 3 As shown, the chip collection box 6 is slidably fitted into the lower part of the slot cavity of the plastic pipe cutter holder 4. To improve the stability of the sliding support, mounting guide grooves are provided on both sides of the lower part of the slot cavity of the plastic pipe cutter holder 4. After installation, the protrusion on the side of the chip collection box 6 is slidably fitted into the mounting guide groove. In order to lock and limit the closed chip collection box 6, as shown in the attached figure... Figure 4As shown, a mounting slot 13 is provided in the middle of the front side of the plastic tube knife holder 4. A limiting plug 14 is slidably inserted into the slot in the middle of the mounting slot 13. After installation, the lower part of the limiting plug 14 abuts against the front side of the chip collection box 6 for support.
[0033] Working principle or structural principle: The aluminum sheet sealing tube opening includes the following steps:
[0034] Step 1: Prepare the mouth opener. Place the mouth opener flat on a flat surface such as a table. If necessary, clean the residual adhesive on the top cone 2 of the mouth opener.
[0035] Step 2: Align the opening. With the positioning cylinder seat 3 as the main reference and visual guidance as the auxiliary reference, align the pre-opening position with the opening cone 2. You can tilt or move it left or right as necessary. When the opening cone 2 touches the protruding thread of the tube opening, it means that it has been correctly aligned.
[0036] Step 3: Punch the opening. After the opening cone 2 is aligned with the pre-opening position, manually press the tail of the rubber tube. The opening cone 2 breaks the sealing aluminum sheet from the tube opening and expands the tube opening to the appropriate size before taking it out, thus completing the opening work.
[0037] Step 4: Cleaning and protection. After stamping the opening, it is inevitable that some undried glue will stick to the top cone 2 of the opening. You can clean the top cone 2 of the opening with a brush dipped in alcohol after stamping. Alternatively, you can remove the top cone 2 of the opening by twisting it off for cleaning or use a utility knife to cut off the residual glue attached to it.
[0038] Opening a rigid plastic tube involves the following steps:
[0039] Step 1: Prepare the opening tool. Place the opening tool flat on a flat surface such as a table. With the opening of the plastic tube knife holder 4 facing outward, insert the opening cutter 5 from the side and install it upside down. If necessary, replace the blade and clean the residual chips inside the knife holder. After installation, the end of the opening cutter 5 is supported by the cutter mounting groove 9, and the lower part is supported by the cutter support plate 10. The adsorption limit of the strong magnet 11 at the rear side can ensure the stability of the installation support of the opening cutter 5.
[0040] Step 2: Press the edge tightly, place the threaded protrusion of the plastic rigid tube to be opened close to the back of the plastic tube knife holder 4, and move the rigid tube down along the back edge until the tube opening is close to the cutting edge of the opening cutter 5 and the tube wall is close to the edge of the knife holder opening, so that when the upper edge of the rigid tube is pressed, a shearing force and shearing motion are formed at the tube opening position.
[0041] Step 3: Press and cut. Use another rigid tube to gently hammer the upper part of the rigid tube until the cutter completely cuts off the tube end. The cut and separated end debris falls downwards and is collected inside the debris collection box 6, completing the cutting and opening work of the rigid tube end.
[0042] Step 4: Waste disposal. After completing the cutting work, unlock the waste collection box 6 by pulling up the limit block 14. Then, pull out the waste collection box 6 and dispose of it. After that, dispose of the waste in the waste collection box 6. Finally, reinstall the waste collection box 6 to complete the waste disposal work.
[0043] In summary, the integrated multi-purpose working structure integrates the opening cone 2 and the opening cutter 5 on the upper part of the base 1. It can be used for opening the packaging of adhesives in aluminum sheet sealed tubes and plastic rigid tubes. The structure is simple and easy to use, and it can meet the opening needs of various adhesive tube ends. The cone-shaped opening cone 2 and the knife holder-supported opening cutter 5 are used for different ends, which can achieve efficient and fast opening of different ends. The opening quality is stable and the opening shape and size are consistent, which can effectively solve the problem of inconsistent opening shape and size of the ends and improve the stability of adhesive discharge. The opening cone 2 and the opening cutter 5 use bolt and magnetic limit-type easy disassembly and disassembly installation structures, respectively. They are easy to disassemble and replace, and can quickly replace vulnerable parts and extend service life. With the support and limit of the positioning cylinder seat 3 and the plastic tube knife holder 4, the risk of accidental damage to the opening device can be effectively reduced, which is conducive to improving the service life and safety of the opening device.
[0044] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.
Claims
1. An open mouth structure for ease of use comprising a base (1), a top cone opening mechanism and a cutter opening mechanism characterised in that, Both the top cone opening mechanism and the cutter opening mechanism are installed on the upper part of the base (1). The top cone opening mechanism includes an opening top cone (2) and a positioning cylinder seat (3). The opening top cone (2) is detachably installed on the upper part of the base (1), and the positioning cylinder seat (3) is concentrically installed on the outside of the opening top cone (2). The cutting mechanism includes a plastic tube cutter holder (4), an opening cutter (5), and a chip collection box (6). The plastic tube cutter holder (4) is supported and installed on the upper part of the base (1). The inner groove side of the plastic tube cutter holder (4) is provided with a cutter support plate (10) and a strong magnet (11). The opening cutter (5) is supported by the cutter support plate (10) and attracted by the strong magnet (11), and is detachably installed in the middle of the plastic tube cutter holder (4). The chip collection box (6) is detachably installed in the groove side of the lower part of the plastic tube cutter holder (4).
2. An orifice structure for ease of use according to claim 1, wherein, The open top cone (2) is cone-shaped, and the upper part of the base (1) is provided with a mounting screw hole (7). The threaded part of the lower part of the open top cone (2) is threadedly installed with the mounting screw hole (7).
3. The easy-to-use opening device structure according to claim 2, characterized in that, The positioning cylinder seat (3) is cylindrical, and the lower part of the positioning cylinder seat (3) is fixedly installed with the upper part of the base (1).
4. The easy-to-use opening device structure according to claim 1, characterized in that, The upper part of the base (1) is provided with a tool holder positioning groove (8), and the side seat of the plastic tube tool holder (4) is aligned and fitted with the tool holder positioning groove (8) and fixedly installed to the base (1) by welding.
5. The easy-to-use opening device structure according to claim 4, characterized in that, The plastic tube knife holder (4) has a cutter mounting groove (9) through both sides of the middle part, and the end of the open cutter (5) is fitted and supported by the cutter mounting groove (9).
6. The easy-to-use opening device structure according to claim 5, characterized in that, The cutter support plate (10) is protruding and fixedly installed at the rear of the groove of the plastic tube cutter holder (4). After installation, the lower part of the open cutter (5) contacts and supports the upper part of the cutter support plate (10). The strong magnets (11) are arranged in pairs. The two sets of strong magnets (11) are symmetrically fixedly installed on both sides of the rear of the groove of the plastic tube cutter holder (4). After installation, the rear side of the open cutter (5) is attached to the strong magnets (11) and adsorbed. Cutter protection plates (12) are fixedly installed on both sides of the upper part of the plastic tube cutter holder (4).
7. The easy-to-use opening device structure according to claim 6, characterized in that, The chip collection box (6) is slidably fitted into the lower part of the groove of the plastic tube knife holder (4). The lower part of the groove of the plastic tube knife holder (4) is provided with installation guide grooves on both sides. After installation, the protrusion on the side of the chip collection box (6) is slidably fitted into the installation guide groove. The front middle part of the plastic tube knife holder (4) is provided with an installation slot seat (13). The middle slot of the installation slot seat (13) is slidably inserted into the slot and a limiting plug (14). After installation, the lower part of the limiting plug (14) abuts against the front side of the chip collection box (6) for support.