Anti-static polymer emulsion spray head assembly based on inner and outer cover strong buckle

Abstract

The utility model discloses a kind of anti-static high-molecular emulsion spray head assemblies based on inner and outer cover strong buckle, it is related to packaging container technical field.It includes inner cover, outer cover, inner cover integrated pump core, one end is equipped with suction tube, the other end is equipped with pressing spray head and liquid outlet nozzle, outer cover is buckled with inner cover by strong buckle structure;It further includes annular sealing ring, it is installed in outer cover interior by connecting assembly, after outer cover is completely buckled, annular sealing ring extrusion deformation and with liquid outlet nozzle seal closely.Ring connecting assembly contains fixed ring and fixed plate, fixed ring is fixed by snap ring and outer cover inner hole snap installation;Annular sealing ring and liquid outlet nozzle are equipped with fillet structure, inner cover is sleeved with rotating ring;Fixed plate edge is equipped with annular protection groove and sealing rubber ring.The utility model is through pertinence sealing design, solve liquid outlet nozzle residual emulsion pollution, deterioration problem, while having the advantages such as installation convenient, prevent outer cover loss, maintenance is easy, etc., adapt to anti-static demand, improve use safety and reliability.

Description

Technical Field

[0001] This utility model relates to the field of packaging container technology, and in particular to an antistatic polymer emulsion spray nozzle assembly based on strong interlocking of inner and outer caps. Background Technology

[0002] In the fields of cosmetics, daily chemical products, industrial coatings, and adhesives, polymer emulsions are increasingly widely used as core functional ingredients. Due to the molecular structure characteristics of polymer emulsions, they are susceptible to static electricity during storage, transportation, and use. Static electricity accumulation can not only damage the molecular structure of the emulsion and deactivate active ingredients, but may also cause emulsion splashing and pose risks of flammability and explosion (for some emulsions containing volatile components). Therefore, antistatic polymer emulsion spray nozzle assemblies have become a key component of related product packaging. Existing technologies typically achieve static electricity release by adding antistatic agents to the polymer materials of the spray nozzle assembly (including inner cap, outer cap, pump body, etc.), using conductive plastic materials, or designing conductive interconnection structures, thereby avoiding the impact of static electricity on emulsion quality and safety.

[0003] To improve the assembly efficiency, sealing reliability, and structural stability of nozzle assemblies, most mainstream emulsion nozzle assemblies currently adopt a strong-locking structure with inner and outer covers for assembly. The inner cover is usually integrated with the pump core and the liquid outlet, serving to fix the pump body and guide the liquid outflow. The outer cover forms a strong-locking connection with the inner cover through interference fit structures such as locking ribs and locking grooves, and clamping posts and clamping holes. This replaces traditional threaded connections or adhesive methods, which not only simplifies the production process and adapts to automated production lines, but also improves the sealing and dustproof effect of the components and reduces the risk of leakage during transportation.

[0004] However, existing antistatic polymer emulsion spray nozzle assemblies with a strong interlocking structure of inner and outer caps still have significant drawbacks: after dispensing, some emulsion remains on the inner wall and port of the nozzle. When the outer cap is closed onto the inner cap, the existing strong interlocking structure can only achieve an overall seal between the inner and outer caps, and cannot specifically seal the nozzle of the spray head. The residual emulsion, when exposed to air for a long time, will absorb dust, bacteria, and other pollutants from the air. When the nozzle is pressed again, these pollutants will enter the surface to be coated (such as skin or the workpiece to be coated) along with the new emulsion, posing a risk of contamination. Furthermore, the active ingredients in the emulsion inside the nozzle (such as vitamins, moisturizing factors, and functional resins) will react with the air to undergo oxidation, and the oily components are prone to rancidity, leading to emulsion deterioration and reduced efficacy. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an antistatic polymer emulsion nozzle assembly based on strong interlocking inner and outer caps, which can reliably seal the dispensing nozzle after use, effectively reduce the probability of emulsion contamination and deterioration inside the dispensing nozzle, and improve the safety and reliability of use.

[0006] This utility model discloses an antistatic polymer emulsion spray nozzle assembly based on a strong snap-fit ​​mechanism between inner and outer covers. The inner cover integrates a pump core, and one end of the inner cover has a suction tube communicating with the pump core. The other end of the inner cover is fitted with a press-to-dispense spray nozzle, with a dispensing nozzle at its edge. The outer cover can be tightly snapped into place with the inner cover via a strong snap-fit ​​structure. The assembly also includes:

[0007] The annular sealing ring undergoes elastic deformation under compression and is installed inside the outer cover via a connecting assembly.

[0008] After the outer and inner covers are fully engaged, the inner wall of the annular sealing ring is pressed tightly against the liquid outlet.

[0009] Furthermore, the connecting assembly includes a fixing ring, on which a fixing plate is mounted. The inner hole of the outer cover is configured as a through hole. The fixing ring is inserted into the inner hole of the outer cover from the side opposite to the fastening end of the outer cover. A retaining ring is provided on the circumferential side wall of the fixing ring, and an anti-detachment ring is provided on the side wall of the inner hole of the outer cover. The fixing ring is secured in the inner hole of the outer cover by the cooperation of the retaining ring and the anti-detachment ring. At this time, the end faces of the fixing plate and the fastening end of the outer cover are in close contact. The outer side wall of the annular sealing ring is fixedly connected to the inner side wall of the fixing ring.

[0010] Furthermore, both the sliding end of the annular sealing ring and the liquid outlet end of the liquid outlet are designed with rounded corners.

[0011] Furthermore, an annular groove is provided in the central area of ​​the inner cover, and a rotating ring is fitted inside the annular groove. Connecting rings are provided on the outer side walls of the rotating ring and the snap-fit ​​end of the outer cover, and the two connecting rings are connected by a connecting rope.

[0012] Furthermore, an annular protective groove is provided at the edge of the surface where the fixing plate is in close contact with the outer cover, and a sealing ring is installed inside the annular protective groove.

[0013] Furthermore, the circumferential sidewall of the fixing plate is provided with several disassembly grooves.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] By installing a deformable annular sealing ring inside the outer cover, the outer and inner covers are tightly fastened together, and the sealing ring fits snugly against the dispensing nozzle, achieving targeted sealing of the dispensing nozzle, isolating it from air, dust, and bacteria, thus preventing residual emulsion contamination and oxidation from the source, and improving the safety and efficacy stability of the emulsion.

[0016] The connecting components use a retaining ring and a retaining plate, and the retaining ring engages with the anti-dislodgement ring in the inner hole of the outer cover. This ensures that the annular sealing ring is installed securely and is easy to disassemble, replace, or clean without compromising the assembly efficiency and sealing foundation of the original inner and outer cover snap-fit ​​structure.

[0017] The rounded corner design of the annular sealing ring and the dispensing nozzle ensures smooth guidance when the outer cover is snapped on, preventing scratches on the dispensing nozzle or sealing ring, extending the service life of the components, and improving the user's handling when opening and closing the cover.

[0018] The combination of the rotating ring, connecting ring, and connecting rope prevents the outer cover from being lost after detaching from the inner cover. The rotating ring can rotate along the annular groove of the inner cover without affecting the normal locking and opening of the outer cover, thus improving ease of use.

[0019] The annular protective groove and sealing ring on the edge of the fixing plate form a secondary sealing structure, which further enhances the sealing performance between the outer cover and itself, prevents external impurities from entering through the gap between the fixing plate and the outer cover, and improves the overall sealing reliability.

[0020] The disassembly groove on the fixing plate provides a force point for the disassembly and assembly of the fixing ring, which facilitates the subsequent maintenance or replacement of the annular sealing ring, reduces the cost of use and maintenance, and does not affect the overall structural strength of the component. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the disassembly slot of this utility model;

[0023] Figure 3 This is the left view of this utility model;

[0024] Figure 4 This is the utility model Figure 3 A cross-sectional view of the AA section;

[0025] Figure 5 This is the utility model Figure 4 A magnified schematic diagram of the partial structure of B in the diagram;

[0026] The following are labels in the attached diagram: 1. Inner cover; 2. Outer cover; 3. Suction tube; 4. Press nozzle; 5. Dispensing nozzle; 6. Annular sealing ring; 7. Fixing ring; 8. Snap ring; 9. Anti-detachment ring; 10. Annular groove; 11. Rotating ring; 12. Connecting ring; 13. Connecting rope; 14. Sealing ring; 15. Disassembly handle groove. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0028] like Figures 1 to 5 As shown, the antistatic polymer emulsion spray nozzle assembly based on the strong snap fastening of inner and outer covers 2 of this utility model includes an inner cover 1 and an outer cover 2. The inner cover 1 integrates a pump core. One end of the inner cover 1 is provided with a suction tube 3 communicating with the pump core, and the other end is equipped with a press-to-dispense spray nozzle 4. A dispensing nozzle 5 is provided on the edge of the press-to-dispense spray nozzle 4. The outer cover 2 can be tightly snapped to the inner cover 1 through a strong snap fastening structure. It also includes:

[0029] The annular sealing ring 6 undergoes elastic deformation under compression and is installed inside the outer cover 2 via a connecting assembly.

[0030] After the outer cover 2 and the inner cover 1 are fully engaged, the inner wall of the annular sealing ring 6 is tightly pressed against the liquid outlet 5.

[0031] In this embodiment,

[0032] Annular sealing ring 6: Made of extrudable material (such as food-grade silicone), its core function is to seal tightly with the liquid outlet 5 after the outer cover 2 is snapped on, isolating air, dust and bacteria, and preventing residual emulsion from contaminating and oxidizing.

[0033] Connecting component: Its core function is to securely install the annular sealing ring 6 inside the outer cover 2, ensuring that the sealing ring does not fall off or shift during the fastening and opening / closing process, thus ensuring the stability of the sealing effect;

[0034] Inner cover 1: Supports the pump core, press nozzle 4 and liquid outlet 5, provides a base for the fastening structure, and integrates anti-static related structures (such as anti-static materials) to achieve static electricity release;

[0035] Outer cover 2: It is tightly fastened to the inner cover 1 through a strong fastening structure, providing an installation carrier for the annular sealing ring 6. At the same time, the strong fastening force causes the sealing ring to be squeezed and deformed, ensuring the sealing fit.

[0036] Pump core, suction pipe 3, press nozzle 4, and dispensing nozzle 5: constitute the basic dispensing system to realize the extraction and spraying of emulsion. The dispensing nozzle 5 is a sealing adapter.

[0037] The emulsion spray nozzle assembly uses polymer materials with added antistatic agents, conductive plastic materials, or a conductive interconnection structure to achieve static electricity release and avoid the impact of static electricity on emulsion quality and safety.

[0038] As a preferred embodiment of the above, the connecting assembly includes a fixing ring 7, on which a fixing plate is mounted. The inner hole of the outer cover 2 is configured as a through hole. The fixing ring 7 is inserted into the inner hole of the outer cover 2 from the side opposite to the fastening end of the outer cover 2. A retaining ring 8 is provided on the circumferential side wall of the fixing ring 7, and an anti-detachment ring 9 is provided on the side wall of the inner hole of the outer cover 2. The fixing ring 7 is fastened in the inner hole of the outer cover 2 by the cooperation of the retaining ring 8 and the anti-detachment ring 9. At this time, the end face of the fixing plate and the fastening end of the outer cover 2 are in close contact. The outer side wall of the annular sealing ring 6 is fixedly connected to the inner side wall of the fixing ring 7.

[0039] In this embodiment,

[0040] Fixed ring 7: Its core function is to provide an installation reference for the annular sealing ring 6. Its inner wall is fixedly connected to the annular sealing ring 6 to ensure the fitting accuracy between the sealing ring and the liquid outlet 5.

[0041] The fixing plate's core function is to limit and fix the fixing ring 7, ensuring that it fits tightly against the end face of the outer cover 2 after being snapped in, thus preventing the fixing ring 7 from moving axially. It also provides a mounting medium for the subsequent sealing ring 14 and disassembly groove 15.

[0042] The through-hole of the outer cover 2: Its core function is to provide space for the insertion and snapping of the fixing ring 7, adapt to the installation method of the connecting components, and not affect the overall structural strength of the outer cover 2.

[0043] Snap ring 8: Its core function is to engage and limit the corresponding structure of the inner hole of the outer cover 2, so as to realize the detachable connection between the fixing ring 7 and the outer cover 2, ensuring the stability of the installation while facilitating disassembly and assembly.

[0044] Anti-detachment ring 9: Its core function is to cooperate with the retaining ring 8 to form a locking limit, providing axial positioning for the fixing ring 7 and preventing the fixing ring 7 from falling out of the inner hole of the outer cover 2.

[0045] As a preferred embodiment of the above, the sliding end of the annular sealing ring 6 and the liquid outlet end of the liquid outlet 5 are both provided with a rounded corner structure;

[0046] In this embodiment,

[0047] The rounded corner structure at the sliding end of the annular sealing ring 6 serves as a guide when the outer cover 2 is fastened, ensuring that the sealing ring smoothly fits onto the liquid outlet 5 and preventing jamming or scratching of the sealing ring edge during fastening.

[0048] The rounded corner structure at the outlet end of the liquid outlet 5 has the core function of reducing contact friction with the sealing ring, preventing sharp edges from scratching the sealing ring, and assisting the sealing ring to fit quickly, thus improving the smoothness of the fastening operation.

[0049] As a preferred embodiment of the above embodiment, an annular groove 10 is provided in the middle region of the inner cover 1, a rotating ring 11 is sleeved in the annular groove 10, and a connecting ring 12 is provided on the outer side wall of the rotating ring 11 and the fastening end of the outer cover 2, and the two connecting rings 12 are connected by a connecting rope 13.

[0050] In this embodiment,

[0051] The annular groove 10 of the inner cover 1: its core function is to provide installation and rotation space for the rotating ring 11, limit the axial displacement of the rotating ring 11, and at the same time not affect the strong fastening fit between the inner cover 1 and the outer cover 2.

[0052] Rotating ring 11: Its core function is to be able to rotate freely along the annular groove 10, so as to prevent the connecting rope 13 from getting tangled, ensure that the connecting rope 13 does not affect the operation when the outer cover 2 is opened and closed, and at the same time provide a fixed carrier for the connecting ring 12.

[0053] Two connecting rings 12: fixed to the outer side wall of the rotating ring 11 and the outer cover 2 respectively. Their core function is to provide a connection end point for the connecting rope 13, so as to realize the connection between the rotating ring 11 and the outer cover 2.

[0054] Connecting rope 13: Its core function is to connect the rotating ring 11 and the outer cover 2, preventing the outer cover 2 from being lost after it is opened, while not affecting the normal fastening and opening action of the outer cover 2.

[0055] As a preferred embodiment of the above, an annular protective groove is provided at the edge of the surface of the fixing plate that is in close contact with the outer cover 2, and a sealing ring 14 is installed in the annular protective groove;

[0056] In this embodiment,

[0057] The annular protective groove's core function is to provide installation and positioning space for the sealing ring 14, limit the radial displacement of the sealing ring 14, and ensure the fitting accuracy between the sealing ring 14 and the end face of the outer cover 2.

[0058] Sealing ring 14: Its core function is to fill the gap between the fixing plate and the end face of the outer cover 2, forming a secondary seal to prevent external impurities from entering the interior of the outer cover 2 through the gap, thereby further improving the overall sealing reliability.

[0059] As a preferred embodiment of the above embodiment, the circumferential sidewall of the fixing plate is provided with a plurality of disassembly grooves 15;

[0060] In this embodiment,

[0061] Disassembly groove 15: Located on the circumferential side wall of the fixing plate, its core function is to provide a force point for disassembling and assembling the fixing ring 7, so that users or operators can use tools or fingers to apply force to remove the fixing ring 7 from the inner hole of the outer cover 2, which facilitates the subsequent maintenance or replacement of the annular sealing ring 6.

[0062] The working principle of this utility model is as follows:

[0063] The core working principle of this utility model is based on the original strong-locking structure and anti-static function of the inner and outer covers 2, and achieves reliable protection of the liquid outlet 5 by adding a targeted sealing structure: When in use, press the nozzle 4, the pump core draws the emulsion through the suction tube 3 and sprays it out through the liquid outlet 5; after use, the outer cover 2 is fastened to the inner cover 1 through the strong-locking structure. During the fastening process, the annular sealing ring 6 is squeezed and deformed under the strong fastening force, and its inner sidewall is tightly fitted with the liquid outlet 5 to achieve the sealing of the liquid outlet 5; the connecting component is secured by the locking ring 7 and the outer cover 2 to ensure the sealing ring is installed firmly; the rounded corner structure assists in smooth fastening, the connecting rope 13 prevents the outer cover 2 from being lost, and the sealing ring 14 of the fixing plate achieves secondary sealing; during subsequent maintenance, the locking ring 7 can be removed and installed by disassembling the groove 15, the annular sealing ring 6 can be replaced or the annular sealing ring 6 can be cleaned. The overall structure, without compromising the anti-static effect and the efficiency of the snap-fit ​​assembly, solves the problems of residual emulsion contamination and deterioration at the source, ensuring the safety and reliability of emulsion use.

[0064] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An antistatic polymer emulsion spray nozzle assembly based on a strong snap-fit ​​structure of inner and outer covers (2), comprising an inner cover (1) and an outer cover (2), wherein a pump core is integrated inside the inner cover (1), a suction tube (3) communicating with the pump core is provided at one end of the inner cover (1), and a press-to-dispense spray nozzle (4) is installed at the other end, wherein a dispensing nozzle (5) is provided at the edge of the press-to-dispense spray nozzle (4), and the outer cover (2) can be tightly snapped to the inner cover (1) through a strong snap-fit ​​structure, characterized in that, Also includes: The annular sealing ring (6) is subjected to compression and undergoes elastic deformation. The annular sealing ring (6) is installed inside the outer cover (2) through the connecting assembly. After the outer cover (2) and the inner cover (1) are fully engaged, the inner wall of the annular sealing ring (6) is tightly sealed and pressed against the liquid outlet (5).

2. The antistatic polymer emulsion nozzle assembly based on the strong snap-fit ​​of inner and outer covers (2) as described in claim 1, characterized in that, The connecting assembly includes a fixing ring (7), on which a fixing plate is mounted. The inner hole of the outer cover (2) is configured as a through hole. The fixing ring (7) is inserted into the inner hole of the outer cover (2) from the side opposite to the fastening end of the outer cover (2). A retaining ring (8) is provided on the circumferential side wall of the fixing ring (7). An anti-detachment ring (9) is provided on the side wall of the inner hole of the outer cover (2). The fixing ring (7) is fastened in the inner hole of the outer cover (2) by the cooperation of the retaining ring (8) and the anti-detachment ring (9). At this time, the end face of the fixing plate and the fastening end of the outer cover (2) are tightly attached. The outer side wall of the annular sealing ring (6) is fixedly connected to the inner side wall of the fixing ring (7).

3. The antistatic polymer emulsion nozzle assembly based on the strong snap-fit ​​of inner and outer covers (2) as described in claim 1, characterized in that, The sliding end of the annular sealing ring (6) and the liquid outlet end of the liquid outlet (5) are both designed with rounded corners.

4. The antistatic polymer emulsion nozzle assembly based on the strong snap-fit ​​of inner and outer covers (2) as described in claim 1, characterized in that, The inner cover (1) has an annular groove (10) in the middle area, and a rotating ring (11) is fitted inside the annular groove (10). A connecting ring (12) is provided on the outer side wall of the locking end of the rotating ring (11) and the outer cover (2). The two connecting rings (12) are connected by a connecting rope (13).

5. The antistatic polymer emulsion nozzle assembly based on the strong snap-fit ​​of inner and outer covers (2) as described in claim 2, characterized in that, An annular protective groove is provided at the edge of the surface where the fixing plate and the outer cover (2) are in close contact, and a sealing ring (14) is installed in the annular protective groove.

6. The antistatic polymer emulsion nozzle assembly based on the strong snap-fit ​​of inner and outer covers (2) as described in claim 2, characterized in that, The fixed plate has several disassembly grooves (15) on its circumferential sidewall.

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