Polishing-free magnesium-aluminum alloy pump sleeve
By designing a sliding connection and magnetic adsorption structure for the magnesium-aluminum alloy pump sleeve, the inconvenience of removing the cap from the cosmetic bottle pump head is solved, achieving the effects of convenient use and extended lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO Z&Z NEW MATERIAL CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-05-08
AI Technical Summary
The existing cosmetic bottle pump head requires the protective cap to be removed before each use, which is inconvenient and prone to accidental drop or collision, shortening its lifespan.
A magnesium-aluminum alloy pump sleeve, comprising a bottom pump sleeve, a top pump sleeve, a sealing ring, and a connecting mechanism, was designed. The protective mechanism is stably installed through sliding connection, magnetic adsorption, and locking screws, avoiding the need to remove the cover and enhancing the connection's firmness and sealing performance.
This design enables convenient use of cosmetic bottle pump heads, preventing drops and collisions, extending service life, and improving ease of use and applicability.
Smart Images

Figure CN224211567U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pump sleeve technology, and in particular to a magnesium-aluminum alloy pump sleeve that does not require polishing. Background Technology
[0002] Pump sleeves are generally protective caps on the top of spray or cosmetic bottle pump heads. Magnesium-aluminum alloy is a type of alloy. The low density of magnesium and aluminum alloys improves their specific performance. Magnesium-aluminum alloys have good strength, rigidity and dimensional stability, which can provide good protection for the spray head.
[0003] The existing system requires users to remove the protective cap every time they use the cosmetic bottle pump head. This step is inconvenient and adds to the usage process. Furthermore, removing the protective cap during use can easily lead to accidental drops or collisions, resulting in physical damage and shortening the lifespan of the pump head.
[0004] To address the aforementioned problems, this utility model document proposes a polish-free magnesium-aluminum alloy pump sleeve. Utility Model Content
[0005] This utility model provides a polish-free magnesium-aluminum alloy pump sleeve, which solves the problems of the prior art where users need to remove the protective cap every time they use the cosmetic bottle pump head. This step is inconvenient for users and increases the number of steps. In addition, the protective cap is prone to accidental drop or collision during use, which can cause physical damage and shorten the service life of the pump head.
[0006] This utility model provides the following technical solution:
[0007] A polish-free magnesium-aluminum alloy pump sleeve, comprising:
[0008] The pump head body and the protective mechanism during operation of the pump head body, which is located on the outside of the pump head body to cover and protect the pump head body.
[0009] The protective mechanism includes a bottom pump sleeve, a top pump sleeve, and a sealing ring. Both bottom pump sleeves and top pump sleeves are disposed on the outside of the pump head body. Each top pump sleeve is slidably connected to the inner wall of the bottom pump sleeve. The sealing ring is glued to the bottom inner wall of the bottom pump sleeve and fits tightly with the pump body of the pump head body to achieve a tight sealing effect.
[0010] An installation connection mechanism is used when a connection protection mechanism needs to be installed. This connection mechanism is installed on the protection mechanism to install, connect, and fix the protection mechanism.
[0011] In one possible design, the protective mechanism further includes a groove, a magnet, an iron sheet, a sleeve, and a sealing gasket. Each sleeve is connected to the outer wall of the top pump sleeve and is used to wrap and protect the spray pipe of the pump head body, preventing the tip of the spray pipe from contacting dust, bacteria, or other contaminants, and preventing contamination of the pump head or cosmetics during reuse. The sealing gasket is glued to one side of the sleeve to improve the sealing performance when the two sleeves are connected and fitted.
[0012] In one possible design, three limiting sliders are fixedly installed on the outer wall of each top pump sleeve. The groove is opened on the inner wall of the bottom pump sleeve for the limiting sliders to slide in a limited manner, so as to facilitate the top pump sleeve to slide up and down inside the bottom pump sleeve. This allows the pump head body to be protected while also being utilized, improving ease of use. Four magnets are respectively set on one side of one bottom pump sleeve and one top pump sleeve, and four iron pieces are respectively set on one side of the other bottom pump sleeve and one top pump sleeve. Each magnet and iron piece are attracted and fixed to each other to enhance the connection between the bottom pump sleeve and the top pump sleeve.
[0013] In one possible design, the connecting mechanism includes a first mounting slot, a second mounting slot, a plug rod, a plug cylinder, a locking screw, a screw hole, and a rubber plug. The two first mounting slots are each opened on the top side of one of the bottom pump sleeves, and the two second mounting slots are each opened on the top side of the other bottom pump sleeve. Each first mounting slot is correspondingly connected to the second mounting slot. Each rubber plug is limited and engaged inside the first and second mounting slots to cover the first and second mounting slots.
[0014] In one possible design, each of the insert rods is welded to one inner wall of the first mounting groove, and each of the insert cylinders is welded to one inner wall of the second mounting groove for limiting insertion of the insert rods. The locking screw is threaded to the inner outer side of the insert cylinder, and the screw hole is opened on the outer wall of the insert rod for threaded connection of the locking screw, so as to securely fasten the protection mechanism to the pump head body and further enhance stability.
[0015] In one possible design, a handle is welded to the outer wall of each of the bottom pump sleeves, and a pressing pad is glued to the top side of each of the top pump sleeves.
[0016] In this application, during use, a bottom pump sleeve and a top pump sleeve are first placed on the outside of the pump head body to cover and protect it. A tube sleeve connects to the outer wall of the top pump sleeve and is used to wrap and protect the spray tube of the pump head body, preventing the tube from contacting dust, bacteria, or other contaminants. A sealing gasket is adhered to one side of the tube sleeve, which improves the sealing performance when the two tube sleeves are connected and fitted. The limiting slider on the outer wall of the top pump sleeve cooperates with the sliding groove on the inner wall of the bottom pump sleeve, allowing the top pump sleeve to slide up and down on the inner wall of the bottom pump sleeve. This enables the pump head body to expel cosmetic liquid when needed, by pressing... The top pump sleeve applies pressure to the pump head body (which is a push-button pump head), causing the cosmetic liquid to be sprayed out and utilized. When the top pump sleeve is released, the pump head body's rebound action causes the top pump sleeve to return to its original position. This achieves the effect of both protecting the pump head body and facilitating its use, avoiding the need to remove the cap each time the cosmetic bottle pump head is used, greatly reducing the number of operation steps. At the same time, it also prevents the pump head body from being accidentally dropped or bumped during use, preventing physical damage, shortening the pump head's lifespan, and improving its applicability.
[0017] Next, the sealing ring, glued to the inner wall of the bottom of the bottom pump sleeve, fits tightly against the pump body of the pump head, ensuring the internal sealing of the pump sleeve and preventing external contaminants from entering. Magnets and iron plates on one side of the bottom and top pump sleeves attract and fix each other, enhancing the connection between them. This allows the bottom and top pump sleeves to be stably snapped onto the pump head body for easy use. Simultaneously, the insertion rod welded in the first mounting slot is positioned and inserted into the corresponding insertion cylinder welded in the second mounting slot, further achieving a connection limiting effect. By tightening the locking screw and threading it into the screw hole on the outer wall of the insertion rod, the two bottom pump sleeves are firmly connected together. This facilitates the stable installation of the protection mechanism on the pump head body, further enhancing the connection strength between the bottom and top pump sleeves, and also achieving… The design facilitates easy disassembly and installation on various pump heads, improving usability. Rubber stoppers, secured inside the first and second mounting slots, seal the slots, preventing water ingress and rusting of the locking screws, while also enhancing aesthetics. A handle welded to the outer wall of the bottom pump sleeve allows users to easily open or close the protective mechanism. A pressing pad bonded to the top side of the top pump sleeve provides a comfortable pressing feel and protects the top pump sleeve from damage. Both the bottom and top pump sleeves are made of magnesium-aluminum alloy, and the core advantage of the pump sleeve lies in its material properties. This alloy has low density, high strength, and superior corrosion resistance compared to ordinary aluminum alloys, making it particularly suitable for use in corrosive environments. Its casting process employs multi-step heat treatment, using refining agents to enhance corrosion resistance. The surface quality reaches a smooth finish even in the as-cast state, eliminating the need for subsequent polishing.
[0018] In this utility model, the non-polishing magnesium-aluminum alloy pump sleeve, through a protective mechanism, can wrap and protect the injection pipe of the pump head body, preventing the pipe head from contacting dust, bacteria and other contaminants, thereby achieving the effect of both protecting the pump head body and facilitating the use of the pump head body.
[0019] In this utility model, the non-polishing magnesium-aluminum alloy pump sleeve, through the connection mechanism, allows the bottom pump sleeve and the top pump sleeve to be stably snapped onto the pump head body, and can also firmly connect the two bottom pump sleeves together, which is conducive to the stable installation of the protection mechanism on the pump head body, and further enhances the connection between the bottom pump sleeve and the top pump sleeve.
[0020] This invention achieves the effect of both protecting the pump head body and facilitating its use, avoiding the need to remove the cap every time the cosmetic bottle pump head is used, greatly reducing the number of operation steps. At the same time, it can also prevent the pump head body from being accidentally dropped or bumped during use, preventing physical damage, shortening the service life of the pump head, and improving its applicability. Attached Figure Description
[0021] Figure 1 A schematic diagram of the main structure of a polish-free magnesium-aluminum alloy pump sleeve provided in an embodiment of this utility model;
[0022] Figure 2 One of the schematic diagrams showing the disassembled state of the bottom pump sleeve and top pump sleeve of a non-polishing magnesium-aluminum alloy pump sleeve provided in an embodiment of this utility model;
[0023] Figure 3 This is the second schematic diagram of the disassembled structure of the bottom pump sleeve and top pump sleeve of a non-polishing magnesium-aluminum alloy pump sleeve provided in this embodiment of the present utility model.
[0024] Figure 4 A polish-free magnesium-aluminum alloy pump sleeve provided in this embodiment of the utility model Figure 2 Enlarged structural diagram of section A;
[0025] Figure 5 A polish-free magnesium-aluminum alloy pump sleeve provided in this embodiment of the utility model Figure 3 Enlarged structural diagram of section B.
[0026] Figure label:
[0027] 1. Pump head body; 2. Bottom pump sleeve; 3. Top pump sleeve; 4. Slide groove; 5. Sealing ring; 6. Magnet; 7. Iron sheet; 8. Pressing pad; 9. Pipe sleeve; 10. Sealing gasket; 11. First mounting groove; 12. Second mounting groove; 13. Insert rod; 14. Insert cylinder; 15. Locking screw; 16. Screw hole; 17. Rubber plug; 18. Handle. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] Example 1
[0030] The problem with existing pump sleeves is that users need to remove the protective cap every time they use the cosmetic bottle pump head. This step is inconvenient and increases the number of steps involved in use. Furthermore, removing the protective cap during use can easily lead to accidental drops or collisions, resulting in physical damage and shortening the lifespan of the pump head. To address this issue, this solution is designed as a pump sleeve.
[0031] Please refer to Figures 1-5 A pump sleeve, comprising:
[0032] Pump head body 1 and a protective mechanism during operation of pump head body 1. This protective mechanism is located on the outside of pump head body 1 to cover and protect pump head body 1. Pump head body 1 is made of ABS plastic (flame retardant rating V0).
[0033] The protective mechanism includes a bottom pump sleeve 2, a top pump sleeve 3, and a sealing ring 5. Both bottom pump sleeves 2 and top pump sleeves 3 are located on the outside of the pump head body 1. Each top pump sleeve 3 is slidably connected to the inner wall of the bottom pump sleeve 2. The sealing ring 5 is glued to the bottom inner wall of the bottom pump sleeve 2 and fits tightly against the pump body of the pump head body 1 to achieve a tight seal. The sealing ring 5, which is glued to the bottom inner wall of the bottom pump sleeve 2, can fit tightly against the pump body of the pump head body 1 to ensure the sealing of the pump sleeve and prevent external contaminants from entering. Both the bottom pump sleeve 2 and the top pump sleeve 3 are made of AZ91D magnesium-aluminum alloy with anodized surface (film thickness 15μm).
[0034] The protective mechanism also includes a groove 4, a magnet 6, an iron sheet 7, a sleeve 9, and a sealing gasket 10 (EPDM rubber, Shore A hardness 50A). Each sleeve 9 is connected to the outer wall of the top pump sleeve 3 and is used to wrap and protect the spray tube of the pump head body 1, preventing the nozzle of the spray tube from contacting dust, bacteria, or other contaminants, and preventing contamination of the pump head or cosmetics during reuse. By using the bottom pump sleeve 2 and the top pump sleeve 3 to be set on the outside of the pump head body 1, the pump head body 1 can be covered to achieve a protective effect. The sleeve 9 is connected to the outer wall of the top pump sleeve 3 and is used to wrap and protect the spray tube of the pump head body 1, preventing the nozzle from contacting dust, bacteria, or other contaminants. The sealing gasket 10 is glued to one side of the sleeve 9 to improve the sealing performance when the two sleeves 9 are connected and fitted. The magnet 6 / iron sheet 7 is an N35 neodymium iron boron magnet / pure iron sheet (nickel-plated), with an adsorption force of 1.2N ± 0.2N.
[0035] Each top pump sleeve 3 has three fixed limiting sliders on its outer wall. A groove 4 is formed on the inner wall of the bottom pump sleeve 2 for the limiting sliders to slide, so that the top pump sleeve 3 can slide up and down inside the bottom pump sleeve 2. This allows the pump head body 1 to be used while protecting it, improving ease of use. By using the limiting sliders on the outer wall of the top pump sleeve 3 and the groove 4 on the inner wall of the bottom pump sleeve 2, the top pump sleeve 3 can slide up and down inside the bottom pump sleeve 2. When it is necessary to squeeze the cosmetic liquid through the pump head body 1, pressing the top pump sleeve 3 will apply pressure to the pump head body 1 (the pump head body 1 is a press-type pump head), so that the cosmetic liquid will be sprayed out and used. This achieves the effect of protecting the pump head body 1 and making it convenient to use, avoiding the need to remove the cap every time the cosmetic bottle pump head is used, greatly reducing the operation steps.
[0036] Four magnets 6 are respectively set on one side of one of the bottom pump sleeves 2 and top pump sleeves 3, and four iron pieces 7 are respectively set on one side of the other bottom pump sleeve 2 and top pump sleeve 3. Each magnet 6 and iron piece 7 are attracted and fixed to each other to enhance the connection between the bottom pump sleeve 2 and the top pump sleeve 3. The magnets 6 and iron pieces 7 set on one side of the bottom pump sleeve 2 and the top pump sleeve 3 will attract and fix to each other to enhance the connection between the bottom pump sleeve 2 and the top pump sleeve 3, so that the bottom pump sleeve 2 and the top pump sleeve 3 can be stably snapped onto the pump head body 1 for easy use.
[0037] The connecting mechanism is used when the protective mechanism needs to be installed. This connecting mechanism is installed on the protective mechanism for installation and connection. The connecting mechanism includes a first mounting groove 11, a second mounting groove 12, a plug rod 13, a plug sleeve 14, a locking screw 15, a screw hole 16, and a rubber plug 17 (nitrile rubber (NBR), Shore A hardness 60A). Both first mounting grooves 11 are located on the top side of one of the bottom pump sleeves 2, and both second mounting grooves 12 are located on the top side of the other bottom pump sleeve 2. Each first mounting groove... Each of the first and second mounting slots 11 is connected to the second mounting slot 12. Each rubber plug 17 is locked inside the first and second mounting slots 11 and 12 to seal the first and second mounting slots 11 and 12. The rubber plug 17 is locked inside the first and second mounting slots 11 and 12 to seal the mounting slots, prevent water from entering and causing rust on the locking screw 15, and also enhance the aesthetics. The insertion rod 13 / insertion cylinder 14 can be made of 304 stainless steel (with a hard chrome plating of HV800).
[0038] Each insert rod 13 is welded to one inner wall of the first mounting groove 11, and each insert cylinder 14 is welded to one inner wall of the second mounting groove 12 for limiting the insertion of the insert rod 13. The locking screw 15 is threaded to the inner outer side of the insert cylinder 14, and the screw hole 16 is opened on the outer wall of the insert rod 13 for threading the locking screw 15, so as to securely clamp the protection mechanism to the pump head body 1, further enhancing stability. When the bottom pump sleeve 2 and the top pump sleeve 3 are connected, the insert rod 13 welded in the first mounting groove 11 will be positioned and inserted into the corresponding insert cylinder 14 welded in the second mounting groove 12, further realizing the connection limiting effect. By tightening the locking screw 15 and threading it into the screw hole 16 opened on the outer wall of the insert rod 13, the two bottom pump sleeves 2 can be firmly connected together, which is conducive to the stable installation of the protection mechanism on the pump head body 1, and further enhances the connection between the bottom pump sleeve 2 and the top pump sleeve 3.
[0039] This application can be used in the field of pump sleeves, or in other fields applicable to this application.
[0040] Example 2
[0041] refer to Figures 1-3 An improvement based on Example 1: a polish-free magnesium-aluminum alloy pump sleeve, which is applied to the field of pump sleeves;
[0042] Each bottom pump sleeve 2 has a handle 18 (laser welded to 304 stainless steel) welded to its outer wall. The handle 18 welded to the outer wall of the bottom pump sleeve 2 allows the user to easily open or close the protective mechanism. Each top pump sleeve 3 has a pressing pad 8 glued to its top side. The pressing pad 8 glued to the top side of the top pump sleeve 3 provides a comfortable pressing feel while protecting the top pump sleeve 3 from damage.
[0043] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations, but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0044] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A polish-free magnesium-aluminum alloy pump sleeve, characterized in that, include: Pump head body (1) and a protection mechanism during operation of pump head body (1), the protection mechanism being disposed outside the pump head body (1) for covering and protecting the pump head body (1); The protective mechanism includes a bottom pump sleeve (2), a top pump sleeve (3), and a sealing ring (5). Both bottom pump sleeves (2) and top pump sleeves (3) are located on the outside of the pump head body (1). Each top pump sleeve (3) is slidably connected to the inner wall of the bottom pump sleeve (2). The sealing ring (5) is glued to the bottom inner wall of the bottom pump sleeve (2) and fits tightly against the pump body of the pump head body (1) to achieve a tight sealing effect. An installation connection mechanism is used when a connection protection mechanism needs to be installed. This connection mechanism is installed on the protection mechanism to install, connect, and fix the protection mechanism.
2. The polish-free magnesium-aluminum alloy pump sleeve according to claim 1, characterized in that, The protective mechanism also includes a groove (4), a magnet (6), an iron sheet (7), a sleeve (9) and a sealing gasket (10). Each sleeve (9) is connected to the outer wall of the top pump sleeve (3) and is used to wrap and protect the injection pipe of the pump head body (1). The sealing gasket (10) is glued to one side of the sleeve (9) to improve the sealing performance when the two sleeves (9) are connected and fitted.
3. The polish-free magnesium-aluminum alloy pump sleeve according to claim 2, characterized in that, Three limiting sliders are fixedly provided on the outer wall of each top pump sleeve (3). The sliding groove (4) is opened on the inner wall of the bottom pump sleeve (2) for the limiting slider to slide, so that the top pump sleeve (3) can slide up and down in the bottom pump sleeve (2), so that the pump head body (1) can be protected while the pump head body (1) can be utilized, improving the ease of use. The four magnets (6) are respectively set on one side of one bottom pump sleeve (2) and top pump sleeve (3), and the four iron pieces (7) are respectively set on one side of another bottom pump sleeve (2) and top pump sleeve (3). Each magnet (6) and iron piece (7) are attracted and fixed to each other to enhance the connection between the bottom pump sleeve (2) and top pump sleeve (3).
4. The polish-free magnesium-aluminum alloy pump sleeve according to claim 1, characterized in that, The connecting mechanism includes a first mounting groove (11), a second mounting groove (12), a plug rod (13), a plug cylinder (14), a locking screw (15), a screw hole (16), and a rubber plug (17). The two first mounting grooves (11) are opened on the top side of one of the bottom pump sleeves (2), and the two second mounting grooves (12) are opened on the top side of the other bottom pump sleeve (2). Each first mounting groove (11) is connected to the second mounting groove (12). Each rubber plug (17) is limited and snapped into the inside of the first mounting groove (11) and the second mounting groove (12) for sealing the first mounting groove (11) and the second mounting groove (12).
5. The polish-free magnesium-aluminum alloy pump sleeve according to claim 4, characterized in that, Each of the aforementioned insert rods (13) is welded to one side of the inner wall of the first mounting groove (11), and each of the aforementioned insert cylinders (14) is welded to one side of the inner wall of the second mounting groove (12) for the insertion of the insert rods (13) for limiting the insertion. The locking screw (15) is threaded to the inner side of the insert cylinder (14), and the screw hole (16) is opened on the outer wall of the insert rod (13) for the threaded connection of the locking screw (15).
6. The non-polishing magnesium-aluminum alloy pump sleeve according to claim 1, characterized in that, Each of the bottom pump sleeves (2) has a handle (18) welded to its outer wall, and each of the top pump sleeves (3) has a pressing pad (8) glued to its top side.