All-plastic tower-like elastomer

Abstract

The application belongs to the technical field of pressing pumps and relates to a full-plastic tower-shaped elastic body, which comprises a plastic elastic sleeve. The plastic elastic sleeve is a through upper and lower thin-walled structure, and a plurality of elastic sections with increasing diameters from top to bottom are arranged on the outer surface of the plastic elastic sleeve. The plastic elastic sleeve is provided with one or more groups of symmetrically arranged rectangular and vertically extending air-avoiding parts. In response to pressing force acting on the upper end, at least part of the elastic sections are elastically compressed. The application adopts a through upper and lower sleeve-shaped thin-walled plastic elastic sleeve, and a plurality of elastic sections with increasing diameters from top to bottom are arranged on the outer surface of the plastic elastic sleeve, thereby solving the problems of poor stability, easy fatigue and large pressing rebound force of the existing spiral plastic spring. The air-avoiding parts can reduce the effective bearing area of the side wall of the sleeve, reduce the overall rebound force under the same compression amount, solve the problem of large rebound force of the existing plastic spring, and make the elastic deformation keep synchronous during compression through the symmetric air-avoiding areas, so that the user feels more comfortable when pressing.

Description

Technical Field

[0001] This application relates to the field of press pump technology, and more particularly to all-plastic tower-shaped elastomers. Background Technology

[0002] This section provides background information relevant to this application and is not necessarily prior art.

[0003] Springs are a crucial component of push-button pumps, used to reset the pusher and piston, enabling fluid pumping. To meet environmental requirements, some manufacturers replace metal springs with helical plastic springs. However, these springs are less stable, prone to fatigue, and require a retainer for positioning. Furthermore, these springs have a high rebound force, requiring users to apply significant pressure, resulting in a poor user experience. Summary of the Invention

[0004] One objective of this application is to address the problems of existing plastic springs, such as poor stability, easy fatigue, the need for a retainer to position the plastic spring, and large pressing rebound force, resulting in a poor user experience.

[0005] The technical solution provided in this application is as follows: The all-plastic tower-shaped elastomer includes: a plastic sleeve, the plastic sleeve being a thin-walled structure that runs vertically through the top and bottom, and its outer surface having multi-level elastic force sections with diameters increasing from top to bottom. The plastic sleeve has one or more sets of symmetrically arranged rectangular and vertically extending clearance portions, and in response to the pressing force acting on the upper end, at least some of the elastic force sections are elastically compressed.

[0006] This application employs a continuous, thin-walled plastic sleeve with a multi-stage elastic force section on its outer surface, the diameter of which increases from top to bottom. This solves the problems of poor stability, easy fatigue, and large rebound force of existing spiral plastic springs. The clearance section reduces the effective bearing area of ​​the sleeve's sidewalls, lowering the overall rebound force under the same compression, thus solving the problem of large rebound force in existing plastic springs. The symmetrical clearance area keeps the elastic deformation synchronized during compression, creating deflection resistance, resulting in a gentler feel when pressed. The structure of the plastic sleeve eliminates the need for additional sleeve positioning, simplifying the assembly process and improving structural reliability.

[0007] Furthermore, the length of the uppermost elastic section of the plastic sleeve is twice or more than that of its adjacent sections. This structure facilitates the assembly of the uppermost elastic section with the column component and ensures consistency at the joint between this section and the column component.

[0008] Furthermore, the upper end of the next elastic section features a convex arc structure. This structure avoids stress concentration at the step, and when the plastic sleeve is compressed, the arc structure disperses the stress over a larger area, reducing the risk of localized cracking and improving overall durability.

[0009] Furthermore, the anti-rebound section penetrates the side wall of the plastic cartridge case. This further reduces the rebound force, making the pressing action smoother and gentler.

[0010] Furthermore, the clearance extends vertically to no more than the second-to-last elastic section from the top, and penetrates the side wall of the plastic sleeve. This structure ensures that the assembly of the uppermost elastic section with the column component is unaffected by the clearance, further reducing rebound force and making the pressing action smoother and gentler.

[0011] Furthermore, the plastic cartridge sleeve is manufactured using a single piece of TPU. The single-piece molding of the plastic cartridge sleeve with TPU combines the advantages of high elasticity and fatigue resistance.

[0012] Another aspect of this application provides a fully plastic tower-shaped elastomer, comprising: a plastic sleeve, said plastic sleeve being a thin-walled structure extending vertically, and its outer surface having multiple elastic force sections with diameters increasing from top to bottom. The upper end of the next lower elastic force section has an outwardly convex arc structure, and in response to a pressing force acting on the upper end, at least some of the elastic force sections are elastically compressed. By employing a vertically extending sleeve-shaped thin-walled plastic sleeve with multiple elastic force sections on its outer surface having diameters increasing from top to bottom, the problems of poor stability, easy fatigue, and large pressing rebound force of existing spiral plastic springs are solved. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the plastic cartridge sleeve of this application. Figure 2 This is a cross-sectional view of the plastic cartridge case of this application. Figure 3 This is a top view of the plastic cartridge case of this application. Figure 4 This is a three-dimensional schematic diagram of the all-plastic push-button pump of this application. Figure 5 This is a cross-sectional view of the all-plastic push-pump of this application. Figure 6 This is an exploded view of the all-plastic push-button pump of this application. Figure 7 This is an exploded cross-sectional view of the all-plastic push-pump of this application. Figure 8 This is a three-dimensional schematic diagram of the pump assembly of this application. Figure 9 This is a cross-sectional view of the pump assembly of this application. Figure 10 This is an exploded view of the pump assembly of this application. Figure 11 This is an exploded cross-sectional view of the pump assembly of this application. Detailed Implementation

[0014] The technical solution of this application will be described below with reference to the accompanying drawings and specific embodiments.

[0015] The all-plastic tower-shaped elastomer of this application is used for the reset of the pusher and piston of a pressure pump, such as... Figure 4 and Figure 11 An embodiment of the press pump according to this application is shown, comprising: a body 2, a press pump assembly a, and a press head 1; the body 2 has a vertically extending press chamber 200, the upper end of the press chamber 200 being open and the lower end having a suction channel 20; the press pump assembly a has: a locking seat 3, a column member 4, a piston 5, and a plastic sleeve 6, the locking seat 3 being relatively fixedly installed on the upper part of the press chamber 200, having a movable channel 30, and a first end 3.1 and a second end 3.2 constructed at the upper and lower ends of the movable channel 30, the column member 4 being movably installed in the movable channel 30, the column member 4 having a press pump channel 40 connecting its upper and lower ends, the piston 5 being fitted on the lower part of the column member 4 and controlled by the limiting of the second end 3.2, the plastic sleeve 6 being fitted on the column member 4 and acting between its upper part and the first end 3.1 of the locking seat 3, the plastic sleeve 6 being elastically compressed in response to the pressing of the press head 1.

[0016] See Figures 1 to 3 An embodiment of the all-plastic tower-shaped elastomer of this application includes: a plastic sleeve 6, the plastic sleeve 6 being a thin-walled structure that runs vertically through the top and bottom, and its outer surface having multi-level elastic force sections with diameters increasing from top to bottom. The plastic sleeve 6 is constructed with one or more sets of symmetrically arranged rectangular and vertically extending clearance portions 6', and in response to the pressing force acting on the upper end, at least some of the elastic force sections are elastically compressed.

[0017] This application employs a through-hole, thin-walled plastic sleeve 6, whose outer surface is constructed with multi-stage elastic sections whose diameter increases from top to bottom. This solves the problems of poor stability, easy fatigue, and large rebound force of existing spiral plastic springs. The clearance portion 6' reduces the effective bearing area of ​​the sleeve's sidewall, lowering the overall rebound force under the same compression, thus solving the problem of large rebound force in existing plastic springs. The symmetrical clearance areas ensure that the elastic deformation remains synchronized during compression, creating deflection resistance, thereby providing a gentler feel when the user presses the sleeve.

[0018] See Figures 1 to 3 as well as Figure 8 and Figure 9In some embodiments, the multi-level segments include, from top to bottom, a first segment 6.10, a second segment 6.11, a third segment 6.12, a fourth segment 6.13, and a fifth segment 6.14. When the user presses the push-button 1, the second segment 6.11, the third segment 6.12, and the fourth segment 6.13 are elastically compressed.

[0019] In some embodiments, the length of the uppermost section 6.10 of the plastic sleeve 6, i.e., the first section 6.10, is twice or more than the length of its adjacent section, i.e., the second section 6.11. This structure facilitates the assembly connection of the first section 6.10 with the column member 4, ensuring consistency at the joint between the first section 6.10 and the column member 4.

[0020] See Figures 1 to 3 as well as Figure 8 and Figure 9 In some embodiments, the upper end of the next-level segment is constructed as a convex arc structure. This structure avoids stress concentration at the step, and when the plastic sleeve 6 is compressed, the arc structure disperses the stress to a larger area, reducing the risk of local cracking and improving overall durability.

[0021] See Figures 1 to 3 as well as Figure 8 and Figure 9 The upper ends of the second section 6.11, the third section 6.12, the fourth section 6.13, and the fifth section 6.14 are constructed with an outwardly convex arc structure.

[0022] See Figures 1 to 3 In one embodiment, the plastic cartridge 6 is constructed with a set of symmetrically arranged clearance portions 6'. Of course, in other embodiments, the plastic cartridge 6 can be constructed with other numbers of symmetrically arranged clearance portions 6', and the specific number can be designed according to the required rebound force.

[0023] See Figures 1 to 3 In the embodiment shown, the clearance portion 6' extends vertically. This design ensures that the clearance portion 6' is effective in the compression direction of the section, thus ensuring the integrity of the section's function.

[0024] See Figures 1 to 3 In the embodiment shown, the clearance portion 6' is rectangular. The parallel boundaries of the rectangular clearance portion constrain the lateral displacement of the sleeve sidewall, so that the elastic restoring force is concentrated in the axial direction, which can avoid stress concentration at sharp corners and ensure stable elastic response.

[0025] See Figures 1 to 3 In the embodiment shown, the clearance 6' penetrates the side wall of the plastic sleeve 6, which can further reduce the rebound force and make the pressing action smoother and gentler.

[0026] See Figures 1 to 3In the illustrated embodiment, the clearance portion 6' extends vertically to no more than the second-to-last section from the top, and the clearance portion 6' penetrates the side wall of the plastic sleeve 6. This structure ensures that the assembly of the uppermost section with the column member 4 is not affected by the clearance portion 6'.

[0027] See Figures 4 to 11 In one embodiment of the all-plastic push-button pump shown, at least some sections of the plastic sleeve 6 are elastically compressed in response to pressing the push-button 1. Because the outer surface of the plastic sleeve has multi-stage sections with diameters increasing from top to bottom, the problems of poor stability, easy fatigue, and large pressing rebound force of existing spiral plastic springs are solved. The structure of the plastic sleeve 6 does not require additional sleeve positioning; it is directly limited by the first end of the locking seat 3 and the column member 4, simplifying the assembly process and improving structural reliability.

[0028] In some other embodiments of this application, the clearance section 6' may not be provided.

[0029] See Figures 4 to 11 As shown, in some embodiments, the all-plastic press pump of this application is a spray pump.

[0030] See Figures 4 to 11 In some embodiments, the locking cover 8 has a locking cover channel 80 connecting the upper and lower ends in the middle, the inner wall of the locking cover channel 80 has a threaded portion, and the locking cover channel 80 has a locking cover step 8.1 above the threaded portion; the upper outer side of the body 2 has a first protruding edge 2.1 that mates with the locking cover step 8.1, and the body 2 has a body assembly part 2.2 below the first protruding edge 2.1. The body 2 is installed in the cover channel 80, and the body assembly part 2.2 is tightly fitted with the inner hole of the locking cover step 8.1. The first protruding edge 2.1 abuts against the upper side of the locking cover step 8.1; the locking seat 3 has a second protruding edge 3.11 that mates with the upper end of the body 2, and the locking seat 3 has a locking seat assembly part 3.3 below the second protruding edge 3.11. The pressure pump assembly a is inserted into the pressure extraction chamber 200 through the locking seat assembly part 3.3. The lock cover 8 and the body 2 are nested together by the first protrusion 2.1, the lock cover step 8.1 and the body assembly part 2.2 to achieve quick positioning and fastening connection; the second protrusion 3.11 of the lock seat 3 is inserted into the lock seat assembly part 3.3 to press the chamber 200, which enhances the overall integrity of the components.

[0031] See Figures 6 to 10 In some embodiments, a sealing gasket 8' is installed on the underside of the locking cap 8 for connecting the container and the bottle opening for sealing.

[0032] See Figures 6 to 10 In some embodiments, a valve 7 is movably fixed at the bottom of the pressure chamber 200 to control the opening of the suction channel 20. This structure is in the prior art.

[0033] A straw 2' is also inserted into the lower end of the pressure chamber 200, and the straw 2' has the suction channel 20 inside.

[0034] In some embodiments, a connecting channel 202 extends from the lower end of the pressing chamber 200, and the upper end of the suction tube 2' is inserted into the connecting channel 202.

[0035] See Figures 1 to 11 In some embodiments, the column component 4 includes a first column 4.1 and a second column 4.2. The first column 4.1 has a column mounting suction channel 4.10 connecting the upper and lower ends. The second column 4.2 has a pump channel 40 with a hole 4.20 penetrating the upper end and the lower sidewall, and an end seat 4.21 located at the lower end. The piston 5 is movably sleeved on the second column 4.2 and limited by the end seat 4.21. The upper end of the second column 4.2 is securely inserted into the column mounting suction channel 4.10 and communicates with the upper end of the column mounting suction channel 4.10. The upper end of the first column 4.1 has a third protrusion 4.11, and the upper end of the plastic sleeve 6 acts on the third protrusion 4.11. The split column component, with the first column 4.1 and the second column 4.2, separates the liquid suction and pumping paths through the column mounting suction channel 4.10 and the pump channel 40, reducing flow interference.

[0036] The plastic sleeve 6 can be made of TPU, i.e., thermoplastic polyurethane rubber, in a single piece. The TPU-molded plastic sleeve 6 combines high elasticity and fatigue resistance, avoiding performance degradation caused by splicing multiple materials. All other parts of the all-plastic spray pump in this application are made of existing plastic materials.

[0037] Based on the disclosure and teachings of the above specification, those skilled in the art to which this application pertains can make changes and modifications to the above embodiments. This application is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this application should also fall within the protection scope of the claims of this application.

Claims

1. A fully plastic tower-shaped elastomer, characterized in that, include: The plastic sleeve (6) is a thin-walled structure that runs through the top and bottom, and its outer surface is constructed with multi-level elastic sections with diameters increasing from top to bottom. The plastic sleeve (6) is constructed with one or more sets of symmetrically arranged rectangular and vertically extending clearance portions (6'). In response to the pressing force acting on the upper end, at least some of the elastic sections are elastically compressed.

2. The all-plastic tower-shaped elastomer according to claim 1, characterized in that, The length of the uppermost elastic section of the plastic sleeve (6) is twice or more than that of its adjacent sections.

3. The all-plastic tower-shaped elastomer according to claim 1, characterized in that, The upper part of the elastic section at the next level has an outwardly convex arc structure.

4. The all-plastic tower-shaped elastomer according to claim 1, characterized in that, The air-proof section (6') penetrates the side wall of the plastic cartridge case (6).

5. The all-plastic tower-shaped elastomer according to any one of claims 2 or 3, characterized in that, The clearance section (6') extends vertically to no more than the second elastic section from the top, and the clearance section (6') penetrates the side wall of the plastic cartridge sleeve (6).

6. The all-plastic tower-shaped elastomer according to any one of claims 1 to 4, characterized in that, The plastic cartridge sleeve (6) is made of TPU in one piece.

7. A fully plastic tower-shaped elastomer, characterized in that, include: The plastic sleeve (6) is a thin-walled structure that runs through the top and bottom, and its outer surface is constructed with multi-level elastic sections with diameters increasing from top to bottom. The upper end of the next level elastic section is constructed with an outwardly convex arc structure. In response to the pressing force acting on the upper end, at least some of the elastic sections are elastically compressed.

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