All-plastic pressing type small nozzle

Abstract

The utility model discloses an all-plastic push type small nozzle, which adopts an all-plastic spring, the structural shape of the plastic spring is similar to a multilayer pagoda and is a tower-mounted structure, and the push type small nozzle specifically comprises a valve needle assembly, a pump core assembly, a large ring and a head cap; the valve needle assembly comprises a valve rod, and the upper portion of the valve rod is sequentially sleeved with an inner plug, an all-plastic spring and a spring cushion. The lower portion of the valve rod is sequentially sleeved with the elastic body, the piston and the valve needle. The pump core assembly comprises a pump body, an elastic sleeve and a valve needle assembly are sequentially installed in the pump body, and a suction pipe is installed at the lower end of the pump body. And a large ring and a head cap are mounted on the pump core assembly. A steel wire spring is replaced by the plastic spring, so that the whole product is an all-plastic product, is non-toxic and harmless in the manufacturing process, is easy to degrade and recycle, reduces the harm of environmental pollution, and greatly improves the reutilization and sustainability of raw materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging containers, and particularly relates to a fully plastic press-type small spray nozzle. Background Art

[0002] Push-type small sprinklers are mainly used in the packaging of daily necessities. Common push-type small sprinkler products on the market basically use steel wire springs made of materials such as S316 and 304H to achieve the normal up and down rebound effect of the product. However, products with steel wire springs have disadvantages such as difficulty in recycling and sorting raw materials during subsequent recycling, and high recycling costs for raw materials. Utility Model Content

[0003] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions:

[0004] A fully plastic push-type small sprinkler head adopts a fully plastic spring. The plastic spring structure is shaped like a multi-layered pagoda, which is a tower-mounted structure. The push-type small sprinkler head specifically includes a valve needle assembly, a pump core assembly, a large ring and a head cap;

[0005] The valve needle assembly includes a valve stem, the upper part of which is sequentially sleeved with an inner plug, a fully plastic spring, and a spring washer; the lower part of which is sequentially sleeved with an elastic body, a piston, and a valve needle;

[0006] The pump core assembly includes a pump body, a spring sleeve and a valve needle assembly are sequentially installed in the pump body, and a suction pipe is installed at the lower end of the pump body;

[0007] A large ring and a head cap are installed on the pump core assembly.

[0008] Furthermore, an outer cover is installed outside the head cap of the push-type small nozzle.

[0009] Furthermore, the upper part of the valve stem is provided with a valve stem buckle position and a valve stem slot, the inner plug is provided with an inner plug plane and an inner plug slot, the all-plastic spring is provided with a plastic spring plane and a plastic spring slot, and the spring pad is provided with a spring pad slot and a spring pad internal buckle position; the valve stem slot and the inner plug slot are limited and sealed, the inner plug plane and the plastic spring slot are limited, and the plastic spring plane and the spring pad slot are limited and matched; the valve stem buckle position and the spring pad internal buckle position are tightly buckled and sealed.

[0010] Furthermore, the lower part of the valve stem is provided with a valve stem plane and a valve stem face, the piston is provided with a piston inclined surface, a piston end face and a piston inner wall, and the valve needle is provided with a valve needle line surface and a valve needle internal buckle position; the valve stem plane is tightly attached to the upper plane of the elastomer, and the lower plane of the elastomer is tightly attached to the piston end face; the piston inclined surface is tightly attached to the valve needle line surface, the piston inner wall is interference sealed with the valve stem surface, and the valve needle internal buckle position is tightly fitted with the valve stem buckle position.

[0011] Furthermore, the pump body is provided with a pump body buckle position, an inner wall of the pump body and a pump body sealing plane; the upper plane of the elastic sleeve and the pump body buckle position are limited, and the elastic sleeve sealing plane and the pump body sealing plane are fitted and sealed; the valve needle assembly piston has a piston sealing surface, and the piston sealing surface and the inner wall of the pump body are interference fit and sealed; the inner plug is provided with an inner plug buckle position, and the inner plug buckle position is fastened with the pump body buckle position.

[0012] Furthermore, the large circle is provided with a large circle buckle position and a large circle rib position, the upper corner of the inner plug is tightly buckled with the large circle buckle position, and the outer surface of the pump body is interference sealed with the large circle rib position.

[0013] The plastic spring and elastomer in this utility model are made of highly elastic, heat-resistant molecular materials. Because these components deform under external force, they possess a high elastic deformation coefficient; otherwise, their rebound function would be ineffective. While it is well known that deformable components made of ordinary materials are inherently soft, they are prone to severe shrinkage, resulting in permanent deformation and loss of their function, especially at high temperatures. However, deformable components made of highly elastic, heat-resistant molecular materials are highly heat-resistant and are not affected by the shrinkage and loss of elasticity caused by high temperatures. They can still deform and recover normally at high temperatures, significantly improving product quality and service life.

[0014] The utility model adopts plastic springs instead of steel wire springs, so that the entire product is a fully plastic product. It is non-toxic and harmless during the production process and is easily degradable and recyclable, thus reducing environmental pollution hazards and greatly improving the reuse and sustainability of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the utility model of a fully plastic push-type small sprinkler;

[0016] Figure 2 is a structural schematic diagram of the valve needle assembly;

[0017] Figure 3 This is an exploded schematic diagram of the connection structure on the valve stem;

[0018] Figure 4 This is an exploded schematic diagram of the connection structure of the lower part of the valve stem;

[0019] Figure 5 A schematic structural diagram of the pump core assembly;

[0020] Figure 6 Schematic diagram of the internal structure of the pump body and the cartridge case;

[0021] Figure 7 This is a schematic diagram of the installation structure of the pump body and valve needle assembly;

[0022] Figure 8 This is a schematic diagram of the assembly of the pump core, large ring, and head cap;

[0023] Figure 9 This is a schematic diagram of the original state and compressed state of the plastic spring and elastic body of the utility model;

[0024] Figure 10 This is a schematic diagram of the fully plastic push-type small nozzle of the utility model in the pressed down state;

[0025] Figure 11 This is a schematic diagram of the utility model's all-plastic push-type small nozzle rebounding to its original state after being pressed down.

[0026] In the figure, the parts are numbered as follows: 1-suction tube, 2-pump body, 3-elastic sleeve, 4-valve needle, 5-large ring, 6-piston, 7-valve stem, 8-elastomer, 9-gasket, 10-inner plug, 11-plastic spring, 12-head cap, 13-spring pad, 14-spray piece, 15-outer cover. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the accompanying drawings. In the description of the present invention, it should be understood that the terms "left side", "right side", "upper", "lower", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as limiting the present invention. The specific dimensions and values ​​used in this embodiment are only for illustrative purposes to illustrate the technical solution and do not limit the scope of protection of the present invention.

[0028] like Figure 1 As shown, the utility model discloses an all-plastic push-type small spray nozzle, which adopts an all-plastic spring. The shape of this plastic spring structure is similar to a multi-layer pagoda, which is a tower-mounted structure. The push-type small spray nozzle specifically includes a valve needle assembly, a pump core assembly, a large ring 5 and a head cap 12; the valve needle assembly includes a valve stem 7, the upper part of which is sequentially inserted into an inner plug 10, a plastic spring 11, and a spring washer 13; the lower part of the valve stem 7 is sequentially inserted into an elastomer 8, a piston 6 and a valve needle 4;

[0029] The pump core assembly includes a pump body 2, in which an elastic sleeve 3 and a valve needle assembly are sequentially installed. A suction pipe 1 is installed at the lower end of the pump body 2; a large ring 5 and a head cap 12 are installed on the pump core assembly.

[0030] An outer cover 15 is installed outside the head cap of the push-type small nozzle.

[0031] like Figure 3As shown, the upper portion of the valve stem 7 cooperates as follows: the valve stem slot 702 cooperates with the inner plug slot 1002 for position limiting and sealing, the inner plug flat surface 1001 cooperates with the plastic spring slot 1102 for position limiting, and the plastic spring flat surface 1101 cooperates with the spring washer slot 1301 for position limiting. The valve stem buckle 701 and the inner buckle of the spring washer are tightly locked and sealed.

[0032] like Figure 4 As shown, the matching method of the lower part of the valve stem 7 is as follows: the valve stem plane 703 is fixedly attached to the upper plane 801 of the elastomer, the lower plane 802 of the elastomer is fixedly attached to the piston end face 602, the piston inclined surface 601 is fixedly attached to the valve needle line surface limit, the piston inner wall 603 and the valve stem surface 704 are interference sealed, and the internal buckle position of the valve needle is tightly fitted with the valve stem buckle position, thereby completing the valve needle assembly.

[0033] like Figure 6 As shown, the elastic sleeve 3 and the valve needle assembly are sequentially installed in the pump body 2, the upper plane 301 of the elastic sleeve is limited by the second buckle position 203 of the pump body, and the elastic sleeve sealing plane 302 is sealed with the pump body sealing plane 204. Figure 7 As shown, the piston sealing surface 604 of the valve needle assembly is interference-fitted and sealed with the inner wall 202 of the pump body, and the inner plug buckle position 1003 is locked with the pump body buckle position 1 201 to form a pump core assembly.

[0034] like Figure 8 As shown, the pump core assembly is put on the large circle 5 and the head cap 12, the upper corner 1004 of the inner plug is tightly fastened with the large circle buckle position 501, and the outer surface 205 of the pump body is interference sealed with the large circle rib position 502.

[0035] Based on the description of the preferred embodiments of the present invention, it should be clear that the present invention as defined by the appended claims is not limited to the specific details set forth in the above description, and many obvious changes to the present invention that do not depart from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A fully plastic push-type small nozzle, characterized by: The all-plastic spring is used, and the shape of the all-plastic spring structure is similar to a multi-layer pagoda, which is a tower-mounted structure; the push-type small spray head specifically includes a valve needle assembly, a pump core assembly, a large ring and a head cap; The valve needle assembly includes a valve stem, the upper part of which is sequentially sleeved with an inner plug, a fully plastic spring, and a spring washer; the lower part of which is sequentially sleeved with an elastic body, a piston, and a valve needle; The pump core assembly includes a pump body, a spring sleeve and a valve needle assembly are sequentially installed in the pump body, and a suction pipe is installed at the lower end of the pump body; A large ring and a head cap are installed on the pump core assembly.

2. The all-plastic push-type small sprinkler according to claim 1, characterized in that: The upper part of the valve stem is provided with a valve stem buckle position and a valve stem slot, the inner plug is provided with an inner plug plane and an inner plug slot, the all-plastic spring is provided with a plastic spring plane and a plastic spring slot, the spring pad is provided with a spring pad slot and a spring pad internal buckle position; the valve stem slot and the inner plug slot are limited and sealed, the inner plug plane and the plastic spring slot are limited, the plastic spring plane and the spring pad slot are limited and matched; the valve stem buckle position and the spring pad internal buckle position are tightly buckled and sealed.

3. The all-plastic push-type small sprinkler according to claim 1, characterized in that: The lower part of the valve stem is provided with a valve stem plane and a valve stem face, the piston is provided with a piston inclined surface, a piston end face and a piston inner wall, the valve needle is provided with a valve needle line surface and a valve needle internal buckle position; the valve stem plane is tightly attached to the upper plane of the elastomer, and the lower plane of the elastomer is tightly attached to the piston end face; the piston inclined surface is tightly attached to the valve needle line surface, the piston inner wall is interference sealed with the valve stem surface, and the valve needle internal buckle position is tightly fitted with the valve stem buckle position.

4. The all-plastic push-type small sprinkler according to claim 1, characterized in that: The pump body is provided with a pump body buckle position, an inner wall of the pump body and a pump body sealing plane; the upper plane of the elastic sleeve and the pump body buckle position are limited, and the elastic sleeve sealing plane and the pump body sealing plane are fitted and sealed; the valve needle assembly piston has a piston sealing surface, and the piston sealing surface is interference fit and sealed with the inner wall of the pump body; the inner plug is provided with an inner plug buckle position, and the inner plug buckle position is fastened with the pump body buckle position.

5. The all-plastic push-type small sprinkler according to claim 1, characterized in that: The large circle is provided with a large circle buckle position and a large circle rib position, the upper corner of the inner plug is tightly buckled with the large circle buckle position, and the outer surface of the pump body is interference sealed with the large circle rib position.

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