All-plastic press-type small nozzle

Abstract

An all-plastic press-type small nozzle, which uses a plastic spring. The plastic spring has a shape similar to a multi-layered pagoda, and is of a tower-shaped structure. The press-type small nozzle specifically comprises a valve needle assembly, a pump core assembly, a large ring, and a nozzle cap; the valve needle assembly comprises a valve rod; the upper portion of the valve rod is sequentially fitted with an internal plug, an all-plastic spring and a spring pad; the lower portion of the valve rod is sequentially fitted with an elastomer, a piston and a valve needle; the pump core assembly comprises a pump body, an elastic sleeve and the valve needle assembly are sequentially mounted in the pump body, and a suction tube is mounted at the lower end of the pump body; and the large ring and the nozzle cap are mounted on the pump core assembly. The plastic spring is used to replace a steel wire spring, so that the entire product is an all-plastic product, is non-toxic and harmless in the manufacturing process, and is easily degraded and easily recycled, thereby reducing environmental pollution, and greatly improving the reuse rate and sustainability of raw materials.

Description

A type of all-plastic push-button small nozzle Technical Field

[0001] This utility model belongs to the field of packaging container technology, specifically relating to an all-plastic press-type small spray head. Background Technology

[0002] Press-type small spray nozzles are mainly used in the packaging of daily necessities. Most of the press-type small spray nozzle products on the market 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, steel wire spring products have disadvantages such as difficulty in raw material recycling and classification, and high cost of raw material recycling. Utility Model Content

[0003] The technical problem to be solved by this utility model is

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0005] A type of all-plastic push-button small nozzle uses an all-plastic spring. The structure of this plastic spring is similar to a multi-layered pagoda and is a tower-shaped structure. The push-button small nozzle specifically includes a valve needle assembly, a pump core assembly, a large ring, and a nozzle cap.

[0006] The valve needle assembly includes a valve stem, the upper part of which is sequentially fitted with an inner plug, a full plastic spring, and a spring washer; the lower part of the valve stem is sequentially fitted with an elastomer, a piston, and a valve needle.

[0007] The pump core assembly includes a pump body, in which a spring sleeve and a valve needle assembly are sequentially installed, and a suction pipe is installed at the lower end of the pump body.

[0008] The pump core assembly is equipped with a large ring and a head cap.

[0009] Furthermore, the cap of the press-type nozzle is fitted with an outer cover.

[0010] Furthermore, the upper part of the valve stem is provided with a valve stem latch and a valve stem groove; the inner plug is provided with an inner plug plane and an inner plug groove; the all-plastic spring is provided with a plastic spring plane and a plastic spring groove; and the spring washer is provided with a spring washer groove and a spring washer internal latch. The valve stem groove and the inner plug groove cooperate to limit and seal the valve stem; the inner plug plane and the plastic spring groove cooperate to limit the valve stem; the plastic spring plane and the spring washer groove cooperate to limit the valve stem; and the valve stem latch and the spring washer internal latch are tightly fastened and sealed.

[0011] Furthermore, the lower part of the valve stem is provided with a valve stem plane and a valve stem surface; 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 fastener; the valve stem plane is tightly fitted to the upper plane of the elastic body, and the lower plane of the elastic body is tightly fitted to the piston end face; the piston inclined surface and the valve needle line surface are tightly fitted together; the piston inner wall and the valve stem surface are press-fitted together; and the valve needle internal fastener and the valve stem fastener are tightly engaged.

[0012] Furthermore, the pump body is provided with a pump body fastener, an inner wall of the pump body, and a pump body sealing plane; the upper plane of the spring sleeve is limited by the pump body fastener, and the sealing plane of the spring sleeve is in contact with and sealed to the pump body sealing plane; the valve needle assembly piston has a piston sealing surface, and the piston sealing surface is in interference fit with and sealed to the inner wall of the pump body; the inner plug is provided with an inner plug fastener, and the inner plug fastener is engaged and fastened to the pump body fastener.

[0013] Furthermore, the large ring is provided with a large ring buckle and a large ring rib, the upper corner of the inner plug is tightly engaged with the large ring buckle, and the outer surface of the pump body is interference-sealed with the large ring rib.

[0014] In this invention, the plastic spring and elastomer are made of highly elastic and heat-resistant molecular materials. Because this part needs to deform under external force, it must have a high elastic deformation coefficient; otherwise, it cannot effectively achieve the rebound function. It is well known that deformable bodies made of ordinary materials are inherently soft and are prone to severe shrinkage, especially at high temperatures, leading to permanent deformation and loss of their deformable body function. However, deformable bodies made of highly elastic and heat-resistant molecular materials possess high heat resistance, are not affected by high-temperature shrinkage and thus do not lose elasticity; they can still deform and recover normally at high temperatures. This greatly improves product quality and service life.

[0015] This invention uses plastic springs instead of steel wire springs, making the entire product an all-plastic product. It is non-toxic and harmless during the manufacturing process, and is easy to degrade and recycle, reducing environmental pollution and greatly improving the reuse and sustainability of raw materials. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of the all-plastic press-type small nozzle of this utility model;

[0017] Figure 2 is a schematic diagram of the valve needle assembly;

[0018] Figure 3 is an exploded view of the upper part of the valve stem connection structure;

[0019] Figure 4 is an exploded view of the lower part of the valve stem connection structure;

[0020] Figure 5 is a schematic diagram of the pump core assembly;

[0021] Figure 6 is a schematic diagram of the internal structure of the pump body and the sleeve;

[0022] Figure 7 is a schematic diagram of the installation structure of the pump body and valve needle assembly;

[0023] Figure 8 is a schematic diagram of the pump core assembly and the assembly of the large ring and the head cap;

[0024] Figure 9 is a schematic diagram of the original state and the compressed state of the plastic spring and elastomer of this utility model.

[0025] Figure 10 is a schematic diagram of the pressed state of the all-plastic push-type small nozzle of this utility model;

[0026] Figure 11 is a schematic diagram of the all-plastic press-type small nozzle of this utility model rebounding to its original state after being pressed down.

[0027] In the diagram, the component numbers are as follows: 1-Suction tube, 2-Pump body, 3-Spring 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 plate, 15-Outer cover. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings. In the description of the present invention, it should be understood that the terms "left side," "right side," "upper part," "lower part," "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 component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Terms such as "first" and "second" do not indicate the importance of the components, and therefore should not be construed as limiting the present invention. The specific dimensions and values ​​used in this embodiment are only for illustrating the technical solution and do not limit the scope of protection of the present invention.

[0029] As shown in Figure 1, this utility model discloses an all-plastic push-button small nozzle, which uses an all-plastic spring. The plastic spring has a structure similar to a multi-layered pagoda, forming a tower structure. The push-button small 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 the valve stem 7 is sequentially fitted with an inner plug 10, a plastic spring 11, and a spring washer 13. The lower part of the valve stem 7 is sequentially fitted with an elastic body 8, a piston 6, and a valve needle 4.

[0030] The pump core assembly includes a pump body 2, in which a spring 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.

[0031] The press-type nozzle is fitted with an outer cover 15.

[0032] As shown in Figure 3, the upper part of the valve stem 7 is fitted as follows: the valve stem groove 702 engages with the inner plug groove 1002 for limiting and sealing; the inner plug plane 1001 engages with the plastic spring groove 1102 for limiting; and the plastic spring plane 1101 engages with the spring washer groove 1301 for limiting. The valve stem snap-fit ​​701 is tightly snapped and sealed with the inner snap-fit ​​of the spring washer.

[0033] As shown in Figure 4, the lower part of the valve stem 7 is fitted as follows: the valve stem plane 703 is tightly fitted with the upper plane 801 of the elastic body, the lower plane 802 of the elastic body is tightly fitted with the piston end face 602, the piston inclined surface 601 is tightly fitted with the valve needle line surface, the piston inner wall 603 is interference-sealed with the valve stem surface 704, and the valve needle internal fastener is tightly fitted with the valve stem fastener, thus completing the valve needle assembly.

[0034] As shown in Figure 6, the spring sleeve 3 and valve needle assembly are sequentially installed inside the pump body 2. The upper plane 301 of the spring sleeve is limited by the pump body locking position 203, and the sealing plane 302 of the spring sleeve is sealed with the sealing plane 204 of the pump body.

[0035] As shown in Figure 7, the valve needle assembly piston sealing surface 604 is press-fitted and sealed with the inner wall 202 of the pump body, and the inner plug snap-fit ​​1003 is engaged with the pump body snap-fit ​​201 to form the pump core assembly.

[0036] As shown in Figure 8, the pump core assembly is fitted with the large ring 5 and the head cap 12. The upper corner 1004 of the inner plug is tightly fastened to the large ring fastening position 501, and the outer surface 205 of the pump body is interference-sealed with the large ring rib position 502.

[0037] 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 without departing from the spirit or scope of the present invention may also achieve the purpose of the present invention.

Claims

1. A full plastic push-to-spray micro sprinkler characterized by: It adopts an all-plastic spring, which has a structure similar to a multi-layered pagoda, forming a tower-like structure; the press-type small nozzle 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 fitted with an inner plug, a full plastic spring, and a spring washer; the lower part of the valve stem is sequentially fitted with an elastomer, a piston, and a valve needle. The pump core assembly includes a pump body, in which a spring sleeve and a valve needle assembly are sequentially installed, and a suction pipe is installed at the lower end of the pump body. The pump core assembly is equipped with a large ring and a head cap.

2. The all-plastic push-to-prim small sprayer of claim 1, wherein: The upper part of the valve stem is provided with a valve stem latch and a valve stem groove. The inner plug is provided with an inner plug plane and an inner plug groove. The all-plastic spring is provided with a plastic spring plane and a plastic spring groove. The spring washer is provided with a spring washer groove and a spring washer internal latch. The valve stem groove and the inner plug groove cooperate to limit and seal the valve stem. The inner plug plane and the plastic spring groove cooperate to limit the valve stem. The plastic spring plane and the spring washer groove cooperate to limit the valve stem. The valve stem latch and the spring washer internal latch are tightly fastened and sealed.

3. The all plastic push-to-prim small sprayer of claim 1 wherein: The lower part of the valve stem is provided with a valve stem plane and a valve stem surface. 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 fastener. The valve stem plane is in close contact with the upper plane of the elastic body, and the lower plane of the elastic body is in close contact with the piston end face. The piston inclined surface and the valve needle line surface are in a limiting contact, the piston inner wall and the valve stem surface are in an interference seal, and the valve needle internal fastener and the valve stem fastener are tightly engaged.

4. The all plastic push-to-prim small sprayer of claim 1 wherein: The pump body is provided with a pump body fastener, an inner wall of the pump body, and a pump body sealing plane; the upper plane of the spring sleeve is limited by the pump body fastener, and the sealing plane of the spring sleeve is in contact with the sealing plane of the pump body; the valve needle assembly piston has a piston sealing surface, and the piston sealing surface is in interference fit with the inner wall of the pump body; the inner plug is provided with an inner plug fastener, and the inner plug fastener is engaged with the pump body fastener.

5. The all plastic push-to-prim small sprayer of claim 1 wherein: The large ring is provided with a large ring buckle and a large ring rib. The upper corner of the inner plug is tightly engaged with the large ring buckle, and the outer surface of the pump body is press-fitted with the large ring rib.

Images