WO2011060601A1

WO2011060601A1 - Improved structure of pure plastic hand trigger sprayer

Info

Publication number: WO2011060601A1
Application number: PCT/CN2010/000135
Authority: WO
Inventors: 黄建艺
Original assignee: 黄建壮
Priority date: 2009-11-19
Filing date: 2010-02-01
Publication date: 2011-05-26
Also published as: CN101703979B; CN101703979A

Abstract

An improved structure of the pure plastic hand trigger sprayer comprises a pump head part and a pump body part. The pump head part comprises a head cap (1), a water diversion head (2) and a guide valve (3). The pump body part comprises a main body (4), a cover (5), a plastic spring (6), a piston (7), a spring sleeve (8), a closed cover (9), a big ring (10), a spacer (11), a small closed cover (12), a suction pipe sleeve (13), a suction pipe (14) and a trigger (15). The trigger is fixed by its fixing hole (1501) hitching the trigger pin (401) of the main body and buckled with the piston. Thus, the trigger performs a circular-arc slippage movement around the fixed trigger pin and the circular-arc slippage movement of the trigger is converted to the horizontal slippage movement of the piston when a hand presses the trigger. Wherein, the plastic spring (6) is arranged between the cylinder body of the main body (4) and the piston (7). The sprayer with the improved structure can be assembled easily and recycled environmentally-friendly, with simple structure and a long use life.

Description

All-plastic hand buckle sprayer improved structure

Technical field

The invention relates to a sprayer and is an improved structure of a full plastic buckle sprayer.

Background technique

At present, there are many nebulizer products on the market, which mainly use the Bernoulli principle: in the same fluid, the flow rate is large, the pressure is small; the flow rate is small, and the pressure is strong. The hand-held sprayers in these sprayer products are widely used in household flower control, household hygiene insecticide, household detergent spraying, etc. Some of the hand-held sprayers are made of plastic for the convenience of environmental protection and recycling. to make. For example, the patent number published in the Chinese patent literature ZL200820168435. 7, the authorization announcement date September 23, 2009, the utility model name "all plastic spray gun", the design point is that the head cap is connected with the water outlet of the main body, and the connection is provided. There is a plastic pilot valve and a water diversion head. The suffocating cover is provided with a plastic elastic cover. The suffocating cover is inserted into the water inlet hole of the main body. A plastic spring is arranged between the wrench and the piston, and the piston is inserted into the inner diameter of the main body of the main body. Another example is the application number 200810162271. 1, published on the Chinese patent document, April 29, 2009, the invention title "all plastic hand-held sprayer", the design point is that a plastic spring is placed between the main body and the wrench, and the ends of the plastic spring Separately with the connecting wrench and the main body, the piston is sleeved into the cylinder, and the spherical rod is fastened to the wrench; the pilot valve is semi-circular, the pilot valve and the water-diving head are inserted into the water outlet of the main body, and the positioning groove and the water-diving head are widened. The holes are respectively connected with the main body, and the end surface of the water dividing head is opposite to the positioning piece of the pilot valve; the elastic cover is interlocked with the boring cover, and is disposed in the cavity of the main body water inlet hole. However, the disadvantages are: the plastic spring is arranged between the piston and the wrench, and the plastic spring is arched. After the use, the plastic spring is prone to deformation and breakage, and the plastic spring is separated from the main body, and the wrench assembly is inconvenient.

Summary of the invention

In order to overcome the above deficiencies, the object of the present invention is to provide an improved structure of a full plastic buckle sprayer in the art, in order to make the structural design of the existing all-plastic hand-held sprayer more stable, the squeezing press effect is better, and the assembly is easier. Designed for technical problems, the purpose is achieved by the following technical solutions.

An improved structure of a full plastic buckle sprayer, the sprayer comprising a pump head portion and a pump body portion, the pump head portion comprising: a head cap, a water diversion head, a pilot valve, the pump body portion comprising: a body, a casing, a plastic spring, a piston, a sleeve, a cover, a large ring, a gasket, a small cover, a straw sleeve, a straw, a wrench; the fixing hole of the wrench is fixed to the wrench pin of the main body, the wrench is engaged with the piston, the wrench is pressed, and the wrench surrounds the fixed wrench The pin end makes a circular sliding motion, and the arc sliding motion of the wrench is converted into a horizontal sliding motion of the piston. The design point is that a plastic spring is arranged between the cylinder of the main body and the piston. The metal spring of the existing non-plastic hand-held sprayer is also disposed between the main body cylinder and the piston, and the wrench is pressed to convert the circular sliding motion of the wrench into the horizontal sliding motion of the piston: meanwhile, according to the Bernoulli principle The liquid is ejected from the pump head portion. Although the plastic The position of the plastic spring in the buckle sprayer is the same as that of the metal spring in the existing non-plastic hand-held sprayer, but the main body and the plastic spring adopt a new material, that is, the metal spring is improved into a plastic spring, and at the same time, the plastic spring, the piston, The structure of the main body has been improved accordingly, overcoming the technical problems of the bow-shaped plastic spring in the original all-plastic buckle sprayer, and realizing the purpose of replacing the metal spring with a plastic spring.

The plastic spring has a cylindrical shape, and has an opening on one end surface, a convex rib on the inner end of the open end, a blind surface on the other end surface, and a circular arc shape on the blind surface. By applying an external force on the arc-shaped blind surface of the plastic spring, the arc-shaped blind surface of the plastic spring is deformed, and the external force drives the piston to slide horizontally to the inner side of the cylinder; after releasing the external force, the circular shape of the plastic spring The blind surface is restored to its original shape, and the generated elastic force drives the piston to slide horizontally to the outside of the cylinder of the main body. According to the working principle of the above plastic spring, it can be designed into other shapes such as a conical shape, but a cylindrical plastic spring has a better effect and is a preferred technical solution.

The piston has a cylindrical shape, a partition layer is arranged in the middle, a spring buckle is arranged on one side of the partition layer, a piston fulcrum abutting surface is arranged on the other side of the piston, and a sealing section is arranged on the outer diameter. The piston spring retaining position is used for fixing the plastic spring; the wrench fulcrum abutting surface is used for fixing the wrench; the sealing section functions the same as the existing piston, and is used for isolating the main body cavity from the outside;

The outer diameter of the piston is provided with two sealing segments. The two-layer seal segment design further ensures the isolation of the body cavity from the outside world.

According to the structural feature of the piston, the other side of the partition of the piston is provided with a spherical rod, and the spherical rod is engaged with the curved buckle of the wrench. On the side of the inner compartment of the piston, there is a spring buckle for fixing the plastic spring. Under the premise that the outer diameter of the piston is provided with a sealing section, the above structural improvement is made to the abutting surface of the fulcrum of the piston, and the same technical effect can be achieved.

The open end of the plastic spring is sleeved into the piston, and the convex rib of the plastic spring is engaged with the spring buckle of the piston, and the blind surface of the plastic spring is opposite to the spring support pin of the main body. The ribs of the plastic spring and the spring buckle of the piston act to prevent the plastic spring from falling off between the piston. The blind surface of the plastic spring and the spring support pin of the main body act to generate an elastic force when the plastic spring and the main body move horizontally.

The piston is sleeved into the cylinder of the main body, and the sealing section of the piston is interference-fitted with the inner diameter of the cylinder of the main body, and the inner hole of the abutting surface of the fulcrum of the wrench is engaged with the rib of the wrench of the wrench. The interference between the sealing section of the piston and the inner diameter of the cylinder of the main body facilitates the loading and unloading of the piston. The inner hole of the abutting surface of the wrench fulcrum and the rib of the wrench of the wrench act to prevent the piston from falling off between the piston and the wrench.

The connecting point of the wrench and the piston is provided with a circular arc fulcrum, and the circular arc supporting point is provided with a wrench rib. The circular arc fulcrum at the joint of the wrench and the piston and the rib of the wrench act on the parallel sliding push piston for horizontal sliding movement, and prevent the piston from falling off between the wrench, so that the circular sliding motion of the wrench is converted into the horizontal sliding movement of the piston.

Through the above improvements, the design of the invention is more reasonable, and the existing similar products are improved to solve the problem that the plastic spring is prone to deformation and breakage, and the plastic spring is separated from the main body or the wrench, which simplifies the product structure, facilitates assembly, and improves It has a long service life and is easy to recycle. It is suitable for the structural improvement of hand-held sprayers and similar products.

BRIEF DESCRIPTION OF THE DRAWINGS: BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic cross-sectional view of the present invention.

Figure 2 is a schematic view of the main structure of the present invention.

Figure 3 is a top plan view of Figure 2.

Figure 4 is a schematic view showing the structure of the piston of the present invention.

Figure 5 is a schematic cross-sectional view showing the piston of the present invention.

Figure 6 is a schematic view of the structure of the plastic spring of the present invention.

Figure 7 is a schematic cross-sectional view showing the plastic spring of the present invention.

Figure 8 is a schematic view showing the structure of the wrench of the present invention.

Figure 9 is a schematic cross-sectional view showing the structure of the wrench of the present invention.

Figure 10 is a schematic view of a modified structure of the present invention.

The above figure number and name: 1, head cap, 2, water head, 3, pilot valve, 4, main body, 401, wrench pin, 402, spring support pin, 403, cylinder block, 5, cover, 6, plastic Spring, 601, blind face, 602, rib, 7, piston, 701, wrench fulcrum abutment surface, 702, spring buckle, 703, sealing section, 704, spherical rod, 8, spring sleeve, 9, stuffed cover, 10, large circle, 11, gasket, 12, small cover, 13, straw sleeve, 14, straw, 15, wrench, 1501, fixing hole, 1502, arc fulcrum, 1503, wrench rib, 1504, curved Buckle.

detailed description:

The main structural features, working principles and use of the sprayer will now be further described in conjunction with the drawings. The main structural feature of the sprayer is: a plastic spring 6 is arranged between the piston 7 and the cylinder 403 of the main body 4, and the structure of the plastic spring is completely different from that of the existing metal spring and the original arcuate plastic spring, and The two parts of the main body and the piston corresponding to the plastic spring have also been improved. As shown in FIG. 6 and FIG. 7, the plastic spring is cylindrical, and one end surface is provided with a blind surface 601, the blind surface is a positioning end of the plastic spring and a main deformation end; the other end surface is provided with an opening, and the inner diameter of the open end is set. There is a rib 602. As shown in FIGS. 2 and 3, a spring support pin 402 is disposed in the cylinder 403 of the main body. As shown in FIG. 4 and FIG. 5, the piston is also cylindrical, and a spring buckle 702 is disposed on one side of the inner partition of the piston, and a wrench fulcrum abutment surface 701 is provided at the opening of the other side, and the outer diameter of the piston A sealing section 703 is provided. As shown in FIG. 8 and FIG. 9, one end of the wrench is provided with a fixing hole 1501, the wrench is provided with a circular fulcrum 1502, and the arc fulcrum is provided with a wrench rib 1503. As shown in Fig. 1, the plastic spring is inserted into the piston, and the rib of the plastic spring is engaged with the spring buckle of the piston; then the piston and the plastic spring are inserted into the cylinder of the main body, and the sealing section of the piston and the inner diameter of the cylinder in the main body pass. Fitted, the blind surface of the plastic spring is offset with the spring support pin of the main body; finally, the wrench with one end fixed to the wrench pin 401 on the main body is pressed against the piston, the rib of the wrench on the arc fulcrum of the wrench and the fulcrum of the wrench fulcrum in the piston The inner hole is fastened, the rib of the wrench on the upper end of the wrench is pressed against the abutting surface of the fulcrum of the piston, and the rib of the wrench is fastened with the inner hole of the abutting surface of the fulcrum of the wrench, and the main structural features of the sprayer can be installed. . The working principle is: by pressing the wrench, the circular sliding motion of the wrench is converted into the horizontal sliding motion of the piston. Before use, the straw 14 is inserted into the container containing the liquid, the straw extends into the liquid, the large ring 10 is screwed tightly with the container mouth, the gasket 11 is sealed with the mouth of the container, and the main body and the container are closed, and the head cap 1 is rotated. To the open state. The reciprocating crimping wrench is applied several times, and the pressure inside the container is increased, and the liquid automatically enters the cavity of the main body from the container. Continue to crimp the wrench, the wrench drives the piston to move to the inside of the cylinder in the main body, and the arc-shaped blind surface on the side of the plastic spring is deformed by force. The gas pushed in at the high speed in the cylinder enters the main body, the elastic sleeve 8 is closed, and the pilot valve 3 is opened. The low-speed fluid in the main body is flushed into water droplets by the gas pushed in at high speed in the cylinder, and flows through the cavity of the main body to the head cap 1, and is blocked by the water-dividing head 2 at the outlet of the main body, and the pilot valve is sprayed from the head cap in a mist form. . When the wrench is loosened, the arc-shaped blind surface of the plastic spring is restored to its original shape, and the generated elastic force drives the piston to move in the opposite direction to the outside of the cylinder body, and the piston drives the wrench to move. At this time, the pilot valve is closed, the elastic sleeve is opened, and the liquid continues to flow into the suction pipe automatically. The straw sleeve 13, the small stuffing cover 12, and the stuffing cover 9 flow into the cavity of the main body, that is, work by using the Bernoulli principle. The reciprocating crimping wrench is continued, and the circular reciprocating sliding motion of the wrench is converted into a horizontal reciprocating sliding motion of the piston, so that the liquid can be continuously sprayed.

According to the above technical features, as shown in FIG. 10, some improvements can be made to the piston to achieve the same technical effect, specifically: the piston spacer is provided with a spring-loaded side on the other side of the spherical rod 704, and the spherical rod of the piston is The curved buckle of the wrench is fastened by 1504. At the same time, the fulcrum of the spanner of the piston is provided with the same arc fulcrum as the wrench. The arc fulcrum of the piston is provided with a rib of a wrench, the rib of the wrench is inserted into the arc fulcrum of the wrench, and the arc on both sides of the wrench and the piston The fulcrum can also convert the arc sliding motion of the wrench into the horizontal sliding motion of the piston.

Claims

Claim

1, an all-plastic snap hand sprayer improved structure, the nebulizer comprising a pump body portion and a head portion, head portion ₁ ^ comprising: a cap head (1), sub-head (2), the lead valve (3), the pump body Some parts include: main body (4), casing (5), plastic spring (6), piston (7), spring sleeve (8), stuffing cover (9), large circle (10), gasket (11), small a cover (12), a straw sleeve (13), a straw (14), a wrench (15); a fixing hole (1501) of the wrench is fixed to the wrench pin (401) of the main body, and the wrench is engaged with the piston, and the wrench is pressed. The wrench rotates around the fixed end of the wrench pin, and the circular sliding motion of the wrench is converted into a horizontal sliding movement of the piston; characterized in that the cylinder (403) of the main body (4) is disposed between the piston (7) Plastic spring

(6).

2. The improved structure of the all-plastic buckle sprayer according to claim 1, wherein the plastic spring (6) has a cylindrical shape, an end surface is provided with an opening, and an inner diameter of the open end is provided with a rib (602), and A blind surface (601) is provided on one end surface, and the blind surface has a circular arc shape.

3. The improved structure of the all-plastic buckle sprayer according to claim 1, wherein the piston (7) has a cylindrical shape with a partition in the middle, and a spring buckle (702) is arranged on one side of the partition. The piston port on the other side is provided with a wrench fulcrum abutting surface (701), and the outer diameter is provided with a sealing section (703).

4. The improved structure of the all-plastic buckle sprayer according to claim 3, characterized in that the outer diameter of the piston (7) is provided with two sealing segments (703).

5. The improved structure of the all-plastic buckle sprayer according to claim 3, characterized in that the other side of the partition of the piston (7) is provided with a spherical rod (704), an arc of the spherical rod and the wrench (15). The buckle (1504) is fastened.

6. The improved structure of the all-plastic buckle sprayer according to claim 1 or 2, characterized in that the open end of the plastic spring (6) is fitted into the piston (7), the rib (602) of the plastic spring and the piston The spring snap (702) snaps and the blind face (601) of the plastic spring abuts the spring support pin (402) of the body.

7. The improved structure of the all-plastic buckle sprayer according to claim 1 or 3, characterized in that the piston (7) fits into the cylinder (403) of the main body (4), the sealing section (703) of the piston and the main body The inner diameter of the cylinder body is interference fit, and the inner hole of the wrench fulcrum abutting surface (701) of the piston is engaged with the wrench rib (1503) of the wrench (15).

8. The improved structure of the all-plastic buckle sprayer according to claim 1, characterized in that the connecting portion of the wrench (15) and the piston (7) is provided with a circular fulcrum (1502), and the arc fulcrum is provided with a wrench rib. (1503). .