Pressure accumulation type sprayer

Abstract

The invention aims to provide a pressure accumulation type sprayer which is easy to recycle materials and provides a pressure accumulation type sprayer capable of improving resource efficiency, so that a contribution is made to a sustainable development target finally. A pressure accumulation type sprayer (X) is composed of components made of polyolefin, and each component comprises: a nozzle part (F); a base section (B) having a sub-cylinder section (B) above and a main cylinder section (B1) below, the base section (B) having a first passage section (P1) leading from the container to the main cylinder section (B1), a second passage section (P2) leading from the main cylinder section (B1) to the sub-cylinder section (B), and a third passage section (P3) leading from the sub-cylinder section (B) to the nozzle section; a piston part which slides in the master cylinder part (B1); a wrench part which rotates around a supporting shaft part (BA) formed on the side surface of the base part (B) in a protruding manner and enables the piston part to slide backwards; a primary valve (FV) provided in the first passage section (P1); a secondary valve structure (A) attached to the sub-cylinder section; an introduction tube (H) through which the liquid in the container is sucked and through which the liquid passes; a cover section (C) that covers the base section (B) from above; a lid (G) to be attached to the container; and a gasket that seals the lid and the base (B).

Description

Technical Field

[0001] The invention relates to a pressure storage sprayer which can be recycled, improve resource efficiency and even contribute to the goal of sustainable development. Background Art

[0002] Among liquid spraying sprayers, there is a so-called pressure storage sprayer which is equipped with a special secondary valve to increase the spraying force.

[0003] Generally, the pressure storage sprayer has a structure in which a piston is slid toward a cylinder to apply pressure to a liquid, and the liquid in the cylinder at a pressure exceeding a certain level is instantly sprayed out from a nozzle.

[0004] They are very useful because they can produce a violent burst of fluid when a certain pressure is reached.

[0005] So far, the research and development of this type of pressure storage sprayer has made some progress in terms of component parts.

[0006] For example, Patent Document 1 discloses a pressure-accumulating hand-operated sprayer, which, when installed in a container, moves the piston by rotating the wrench portion, exerting pressure on the liquid in the cylinder portion of the cylinder portion. When a certain pressure is reached, the liquid is ejected from the nozzle portion through the channel P.

[0007] Furthermore, in the trigger sprayer, a coil spring is used to apply elastic force to the secondary valve, and in order to obtain sufficient rebound force, the coil spring is made of metal.

[0008] Prior art literature

[0009] Patent Literature:

[0010] Patent document 1: Japanese Patent Application Publication No. 2017-13008. Summary of the invention

[0011] Problem that the invention aims to solve

[0012] However, in the above-mentioned pressure storage type trigger sprayer, the metal material part is difficult to adapt to the trend of recycling.

[0013] In particular, although the pressure storage type trigger sprayer is easy to carry and compact, since most of the parts are formed of synthetic resin materials, if any metal parts are included, they must be selected and removed.

[0014] Therefore, this is extremely inefficient and not preferred from the perspective of material recyclability.

[0015] Nowadays, in order to achieve the goal of sustainable development, society's demands for recycling and improving resource efficiency are increasing, and there is an urgent need for recyclable pressure storage trigger sprayers.

[0016] In addition, from the perspective of improving resource efficiency, there is an urgent need for a pressure-accumulating trigger sprayer with as few parts as possible.

[0017] The present invention is implemented against the background of the above situation. That is, the purpose of the present invention is to provide a pressure storage sprayer that is easy to recycle materials and to provide a pressure storage sprayer that improves resource efficiency, ultimately contributing to the goal of sustainable development.

[0018] Solutions for solving problems

[0019] The inventors of the present invention conducted intensive research to solve the above-mentioned problems and found that, in a secondary valve, by integrally injection molding the spring portion and the valve portion using a specific synthetic resin, the metal portion can be eliminated, the number of parts can be reduced, and material recycling can be achieved.

[0020] The present invention has been completed based on such findings.

[0021] That is, the first embodiment of the present invention is a pressure storage sprayer X, which is composed of parts made of polyolefin, each of which includes: a nozzle part F; a base part B, which has a sub-cylinder part B at the top and a main cylinder part B1 at the bottom, and the base part also has a first channel part P1 from the container to the main cylinder part B1, a second channel part P2 from the main cylinder part B1 to the sub-cylinder part B, and a third channel part P3 from the sub-cylinder part B to the nozzle part; a piston part, which slides in the main cylinder part B1; a wrench part E, which rotates with the supporting shaft BA protruding from the side of the base B as a fulcrum to make the piston part slide backward; a wrench return spring I, which makes the wrench part E return forward; a primary valve FV, which is arranged in the first channel part P1; a secondary valve structure A, which is assembled on the auxiliary cylinder part B2; an inlet pipe H, which is used to absorb the liquid in the container and let the liquid pass through; a cover part C, which covers the base B from above; a cover part G, which is used to be installed on the container; and a sealing gasket K, which seals the cover part and the base B.

[0022] A second aspect of the present invention is the pressure storage sprayer X according to the first aspect, wherein the secondary valve structure A is composed of a spring portion 1 and a valve piston portion 2, and the spring portion 1 and the valve piston portion 2 are integrally formed.

[0023] A third aspect of the present invention is a pressure storage type sprayer X, wherein the secondary valve structure A, in an initial installation state when assembled in the pressure storage type sprayer X, is in a no-load state in which no compressive force is applied in the vertical direction.

[0024] A fourth aspect of the present invention is a pressure storage sprayer X, wherein the cross-sectional shape of the support shaft portion BA formed on the base has a large arc portion BA1 and a small arc portion BA2, and a cutout portion is formed between the large arc portion BA1 and the small arc portion BA2.

[0025] In addition, the fifth scheme of the present invention is a pressure storage sprayer X, in which, assuming that the distance between the bottom B2A of the sub-cylinder part B2 and the supporting wall part C1 of the cover part C is L2, and the upper and lower lengths of the secondary valve structure A when it is unloaded (that is, in a state where it is not assembled) are L1, then the relationship between the two is L2>L1.

[0026] A sixth aspect of the present invention is a pressure storage sprayer X, wherein the lever and the return spring are integrally (integrally) injection molded during manufacture.

[0027] Effects of the Invention

[0028] In the first embodiment of the present invention, the pressure storage sprayer is composed of parts made of polyolefin, each of which includes: a nozzle part F; a base part B, which has a sub-cylinder part B on the upper side and a main cylinder part B1 on the lower side, and has a first channel part P1 from the container to the main cylinder part B1, a second channel part P2 from the main cylinder part B1 to the sub-cylinder part B, and a third channel part P3 from the sub-cylinder part B to the nozzle part; a piston part, which slides in the main cylinder part B1; a wrench part, which is protruding The support shaft BA formed on the side of the base B is used as a fulcrum to rotate and slide the piston part backward; the wrench return spring I, which makes the wrench part E return forward; the primary valve FV, which is set in the first channel part P1; the secondary valve structure A, which is assembled in the auxiliary cylinder part; the introduction pipe H, which is used to absorb the liquid in the container and pass the liquid; the cover part C, which covers the base B from above; the cover part G, which is used to be installed on the container; and the sealing gasket K, which seals the cover part and the base B. Therefore, the storage type sprayer X of the present invention, including all its parts, is easy to recycle, and the resource efficiency can be improved, so it can ultimately contribute to the sustainable development goals and is extremely useful.

[0029] In the second embodiment of the present invention, the secondary valve structure A is composed of a spring portion 1 and a valve piston portion 2, and the spring portion 1 and the valve piston portion 2 are integrally formed. Therefore, the number of parts of the pressure storage sprayer of the present invention is reduced, and the spring function and the valve function can be exerted in a smaller space area.

[0030] Therefore, the secondary valve structure A can be arranged upward as much as possible, and the area in which the master cylinder can be arranged toward the rear side can be lengthened accordingly.

[0031] As a result, the distance that the piston moves backward can be increased, and the discharge amount (spray amount) can be increased while reducing the wrench force, that is, reducing the mechanical load.

[0032] In the third aspect of the present invention, the secondary valve structure A is in a no-load state without receiving compressive force in the vertical direction when initially installed in the pressure storage sprayer X. Therefore, the polyolefin, which is the material of the spring body, does not undergo plastic deformation, and the valve function can always be efficiently performed.

[0033] In the fourth embodiment of the present invention, the cross-sectional shape of the support shaft portion BA formed on the base body has a large arc portion BA1 and a small arc portion BA2, with a defect portion therebetween. Therefore, a small space portion S is generated between the bearing hole E1 of the wrench and the support shaft portion BA, which reduces friction and has excellent energy efficiency compared to the prior art.

[0034] In the fifth embodiment of the present invention, assuming that the distance between the bottom B2A of the sub-cylinder portion B2 and the supporting wall portion C1 of the cover portion C is L2, and the vertical length of the secondary valve structure A when there is no load (i.e., not assembled) is L1, the relationship between the two is L2>L1. As a result, the material does not undergo plastic deformation.

[0035] Therefore, the function of the spring portion of the secondary valve structure A can be always maintained.

[0036] In addition, in the sixth aspect of the present invention, the wrench and the return spring are integrally (same body) injection molded during manufacture. Therefore, although they function independently of each other after assembly, the manufacturing cost can be greatly reduced because they can be manufactured in one piece at a time. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a perspective view showing the pressure storage type sprayer X of the present invention.

[0038] Figure 2 1 is a side view showing a pressure storage type sprayer X according to the present invention.

[0039] Figure 3 1 is a longitudinal sectional view showing a pressure storage type sprayer X according to the present invention.

[0040] Figure 4 This is a longitudinal cross-sectional view showing the arrangement state of the secondary valve structure in the pressure storage type sprayer X of the present invention, showing the initial no-load state.

[0041] Figure 5 This is a longitudinal cross-sectional view showing the pressure storage type sprayer X of the present invention, showing a state where the secondary valve structure A reaches the top dead center.

[0042] Figure 6This is a longitudinal cross-sectional view showing the arrangement state of the secondary valve structure in the pressure storage type sprayer X of the present invention, showing a state where the secondary valve structure reaches the top dead center.

[0043] Figure 7 It is a diagram for explaining the relationship between the wrench portion E and the support shaft portion BA. DETAILED DESCRIPTION

[0044] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings as needed.

[0045] It should be noted that the same elements in the drawings are marked with the same reference numerals, and repeated descriptions are omitted.

[0046] In addition, unless otherwise specified, positional relationships such as up, down, left, and right are based on the positional relationships shown in the drawings.

[0047] Furthermore, the dimensional ratios of the drawings are not limited to the ratios shown in the drawings.

[0048] (Implementation Method)

[0049] Figure 1 It is a perspective view showing the pressure storage type sprayer X of the present invention.

[0050] Figure 2 1 is a side view showing a pressure storage type sprayer X according to the present invention.

[0051] Figure 3 1 is a longitudinal sectional view showing a pressure storage type sprayer X according to the present invention.

[0052] Figure 4 This is a longitudinal cross-sectional view showing the arrangement state of the secondary valve structure in the pressure storage type sprayer X of the present invention, showing the initial no-load state.

[0053] The pressure storage sprayer X of the present invention has the function of applying pressure to the liquid in the cylinder by rotating the lever E to move the piston backward, and strongly spraying the liquid from the nozzle F when a certain pressure is reached. The secondary valve structure A plays the role of storing the pressure.

[0054] Regarding the structure, the pressure storage sprayer X of the present invention includes a nozzle portion F, a base portion B, a piston portion D, a cover portion C, a wrench portion E, a secondary valve structure A, a primary valve FV, an introduction pipe H, a wrench return spring I, a cover portion G, and a gasket K.

[0055] Furthermore, the base B has the main cylinder portion B1, the sub-cylinder portion B2, the first passage portion P1, the second passage portion P2, the third passage portion P3, etc., and is therefore an important portion having passages through which liquid flows.

[0056] The pressure storage sprayer X of the present invention is composed of the 11 components described above.

[0057] Furthermore, the flow process of the liquid is: container J→introduction pipe H→first channel part P1→primary valve FV→main cylinder part B1→second channel part P2→sub-cylinder part B2→secondary valve structure A→third channel part P3→nozzle part F→outside.

[0058] In addition, since the materials of each component are made of PO (polyolefin), they can be recycled. Here, the material of the nozzle part F and the wrench part E, the wrench return spring I, the base B, the secondary valve structure A, the cover part C, the cover part G and the introduction pipe H is preferably PP (polypropylene).

[0059] In addition, LLDPE (linear low-density polyethylene) is preferably used for the piston D and the primary valve FV, and EPE (foamed polyethylene) is preferably used for the gasket K.

[0060] By limiting the above-mentioned materials, the total weight of the pressure storage type sprayer X which does not use metal parts can be controlled to be 20 g or less.

[0061] Furthermore, the weight relationship of each component is, for example, 1) base body B>2) cover part C>3) cover part G>4) wrench part E>5) introduction pipe H>6) wrench return spring I>7) nozzle part F>8) piston part D>9) secondary valve structure A>10) primary valve FV>11) sealing gasket K. Next, the mutual arrangement relationship of each component is described.

[0062] First, the nozzle portion is mounted on the top end of the base B, from which liquid is ejected outward.

[0063] The base B is an important portion having a channel for liquid to flow, and is a portion serving as a base.

[0064] As described above, the base portion B includes the main cylinder portion B1 , the sub-cylinder portion B2 , the first passage portion P1 , the second passage portion P2 , and the third passage portion P3 .

[0065] More specifically, the base B includes a main cylinder portion B1 for receiving the piston portion D at the lower portion, and includes a sub-cylinder portion B2 for receiving the secondary valve structure A at the upper portion.

[0066] Moreover, as described above, the base B comprises: a first channel portion P1 for introducing the liquid in the container into the main cylinder portion B1; a second channel portion P2 for introducing the liquid from the main cylinder portion B1 into the sub-cylinder portion B2 having the secondary valve structure A; and a third channel portion P3 for introducing the liquid from the sub-cylinder portion B2 into the nozzle portion F.

[0067] In addition, the piston portion D reciprocates and slides in the main cylinder portion to apply pressure or negative pressure to the liquid.

[0068] A support shaft portion BA is protrudingly formed on the side surface of the base portion B, and the wrench portion E rotates around the support shaft portion BA as a fulcrum to slide the piston portion D rearward.

[0069] When pressure is applied to the cylinder, the wrench portion E is rotated rearward, causing the piston portion D to slide rearward.

[0070] On the contrary, when the pressure in the cylinder is reduced, the wrench part E automatically rotates forward by the return spring, causing the piston part D to slide forward (return motion).

[0071] On the other hand, a primary valve FV is provided in the first passage portion P1.

[0072] Specifically, the primary valve FV is provided in the first liquid passage P1 between the main cylinder portion B1 and the tank J. As shown in FIG.

[0073] In addition, a secondary valve structure A (described in detail later) is mounted on the sub-cylinder portion B2.

[0074] Specifically, the secondary valve structure A is provided between the main cylinder portion B1 and the inlet of the passage for conveying the liquid to the nozzle portion F (that is, the third passage portion P3 ).

[0075] The introduction pipe H constitutes a passage for sucking the liquid in the container and passing the liquid toward the main cylinder portion B1.

[0076] A flange is formed at the lower end of the base B, and the base B is attached and fixed by screwing the cap G in to press the flange against the container mouth.

[0077] It should be noted that the sealing gasket K is used to seal between the flange portion and the upper end of the mouth portion.

[0078] On the other hand, the cover C is attached to the base B so as to cover the base B from above.

[0079] However, as described above, the sub-cylinder portion B2 is provided above the base portion B, and a space is formed on the downstream side of the second passage portion P2 by the inner peripheral wall of the sub-cylinder portion B2.

[0080] The secondary valve structure A is mounted in the space of the inner peripheral wall.

[0081] Here, the cover portion C covers the base portion B, and as described above, a portion of the inner side of the cover portion C serves as a support wall portion C1 with which the spring portion 1 of the secondary valve structure A abuts.

[0082] In addition, a stopper portion C2 is formed inside the support wall portion C1 , and this point will be described later.

[0083] When the liquid is sprayed from the nozzle, the secondary valve structure A moves upward, and the circumferential end of the inverted dome-shaped spring portion 1 is brought into pressure contact with the support wall portion C1, and the valve opens.

[0084] On the contrary, the valve piston portion 2 is urged downward by the spring portion 1, so that the secondary valve structure A moves downward and the valve is closed.

[0085] Next, the secondary valve structure A will be described in detail. Figure 5 This is a longitudinal cross-sectional view showing the pressure storage type sprayer X of the present invention, showing a state where the secondary valve structure A reaches the top dead center.

[0086] The secondary valve structure A is composed of a spring portion 1 and a valve piston portion 2 in a skirt shape hanging down from the spring portion 1 .

[0087] The spring portion 1 is formed in an inverted dome shape (in other words, a disk shape) so as to be able to exert a rebound effect as the secondary valve structure A.

[0088] On the other hand, the valve piston portion 2 includes a core rod portion 21 and a skirt portion extending downward from the outer periphery of the core rod portion 21. The skirt portion is composed of two portions, an outer skirt portion 22 and an inner skirt portion 23 extending downward from the outer skirt portion 22.

[0089] Here, as will be described later, the outer skirt portion 22 plays a role of a seal, and the inner skirt portion 23 plays a role of a valve element.

[0090] The core rod portion 21 is formed in a cylindrical shape between the spring portion 1 and the outer skirt portion 22 .

[0091] When the secondary valve structure A moves up and down, even if the shaft oscillates slightly, it will not come into contact with the wall surface of the sub-cylinder portion B2, and the movement will not be hindered.

[0092] The core rod portion 21 of the valve piston portion 2 is formed hollow, and a hollow hole 1B is opened at the center of the inverted dome-shaped spring portion 1 .

[0093] As described above, since the core rod portion 21 has the hollow hole 1B, the valve piston portion 2 is less likely to bend, and thus the valve function can be more reliably exhibited.

[0094] The upper end of the core rod portion 21 protrudes from the inverted dome-shaped spring portion 1 to form a cylindrical protrusion 1A.

[0095] When the secondary valve structure A moves upward, the cylindrical projection 1A comes into contact with a stopper C2 provided on the cover portion C at the top dead center.

[0096] Therefore, the upward movement of the secondary valve structure A is restricted, and as a result, the deformation of the spring portion 1 is controlled within a certain range.

[0097] Furthermore, if there were no cylindrical protrusion 1A and the stopper C2, the inverted dome-shaped spring portion 1 would be turned upside down or extremely twisted.

[0098] exist Figure 6 In this state, the liquid will flow to the third channel portion through the longitudinal groove portion B2B provided in the sub-cylinder portion.

[0099] Here, the secondary valve structure A is preferably in contact with either the support wall C1 of the cover C or the bottom B2A of the sub-cylinder B2 when assembled (initial setting state), or in contact with neither.

[0100] This is because when the secondary valve structure A is subjected to a compressive load in the vertical direction in the initial setting state, the spring portion thereof is always under pressure, so that so-called plastic deformation of the material (polyolefin resin) is easily generated.

[0101] Therefore, when used for a long time, the spring force of the secondary valve structure A decreases.

[0102] In the initial setting state, when the secondary valve structure A is in contact with both the support wall C1 of the cover C and the bottom B2A of the sub-cylinder B2, the secondary valve structure A is subjected to a compressive force in the vertical direction.

[0103] Assuming that the distance between the bottom B2A of the auxiliary cylinder B2 and the supporting wall C1 of the cover C is L2, and the vertical length of the secondary valve structure A when no load is L1, the relationship between the two is preferably L2>L1 (refer to Figure 4 ).

[0104] In addition, when the secondary valve structure A is not assembled, its length is the same as the vertical length L1 when there is no load.

[0105] Furthermore, in the prior art, when the secondary valve structure A is assembled into the pressure storage sprayer (initial installation state), the upper end portion is supported by the support wall portion C1 of the cover portion C, while the lower end portion is supported by the bottom of the sub-cylinder portion B2.

[0106] Therefore, the secondary valve structure A is always in a state where pressure is applied to the secondary valve structure A in the up-down direction, that is, a load is applied in the compression direction.

[0107] The characteristic structures of the pressure storage type sprayer X and the secondary valve structure A of the present invention have been described above. The pressure storage type sprayer X of the present invention has several other characteristics, which will be described below.

[0108] (Special Section of Support Shaft BA) As described above, the support shaft BA is protrudingly formed on the side surface of the base B, and the wrench part E can rotate around the support shaft BA as a fulcrum.

[0109] Figure 7 It is a diagram for explaining the relationship between the wrench portion E and the support shaft portion BA.

[0110] It should be noted that the portion surrounded by the one-dot chain line is shown in an enlarged manner.

[0111] In the present invention, as shown in the figure, the cross-sectional shape of the support shaft portion BA has a large arc portion BA1 and a small arc portion BA2, and a first chord portion BA3 and a second chord portion BA4 are formed by a cutout therebetween.

[0112] Therefore, a small space S is generated between the bearing hole E1 of the wrench part E and the support shaft part BA, and the friction force is reduced compared with the conventional technology, thereby achieving excellent energy efficiency.

[0113] In particular, as shown in the figure, when a small space portion S is generated on the rear side, the burden is small when the wrench portion E is pressed and rotated, and the effect is good.

[0114] Furthermore, in the prior art, the cross-sectional shape of the support shaft portion BA is a perfect circle.

[0115] (Can reduce buckle pressure and increase spray volume)

[0116] Since the secondary valve structure A having both a spring function and a valve function is incorporated in the pressure storage sprayer X of the present invention, the spring function and the valve function can be exerted in a smaller space.

[0117] Therefore, the secondary valve structure A can be arranged upward as much as possible, and the area in which the master cylinder B1 can be arranged toward the rear side can be lengthened accordingly.

[0118] As a result, the distance that the piston portion D moves rearward can be increased, thereby increasing the discharge amount.

[0119] Furthermore, the cylinder diameter can be reduced, thereby reducing the mechanical burden (ie, the buckling force) of the buckling wrench portion E.

[0120] Here, in the present invention, the cylinder diameter can be in the range of 12.5 mm to 14 mm, and the moving distance (stroke) of the piston portion D can be in the range of 8.5 mm to 10 mm.

[0121] Among them, from the perspective of the mechanical burden of the buckle wrench part E and the discharge amount, it is particularly preferred that the cylinder diameter is 13.5 mm and the moving distance of the piston part D is 9 mm. At this time, the discharge amount of the liquid is 1.3 cc.

[0122] Furthermore, in the prior art, the cylinder diameter is 14.5 mm to 15.2 mm, and the moving distance of the piston portion D is usually 6 mm to 7 mm.

[0123] In particular, the cylinder diameter is often 14 mm, and the moving distance of the piston D is often 7 mm. In this case, the ejection amount of the liquid is 1.08 cc.

[0124] It should be noted that regarding the above points, the applicant conducted verification using the pressure storage type sprayer X of the present invention having the same size as the pressure storage type sprayer X in the prior art (Patent Document 1).

[0125] (Reduce the number of parts during manufacturing)

[0126] The wrench portion E and the return spring I are integrally injection-molded during manufacture.

[0127] Although they are independent after assembly, they can actually be manufactured in one piece, thus significantly reducing manufacturing costs.

[0128] As mentioned above, although the preferred embodiment of the present invention has been described, the present invention is not limited to the above-mentioned embodiment.

[0129] In the pressure storage sprayer X of the present invention, the materials of its parts are polyolefins, and any material can be appropriately used as long as it falls within the scope of the polyolefins.

[0130] In addition, regarding the primary valve FV, any other valve may be used as long as it has a function of discharging liquid in one direction.

[0131] In addition, the appearance and shape Figure 1 The differences shown certainly fall within the scope of design changes.

[0132] Industrial Applicability

[0133] All parts of the pressure storage sprayer X of the present invention are made of polyolefins, and the number of parts is reduced as much as possible, so it is easy to recycle, thereby improving resource efficiency and ultimately contributing to sustainable development goals, which is extremely useful.

[0134] Description of Reference Numerals

[0135] X: Pressure storage sprayer

[0136] A: Secondary valve structure

[0137] 1: Spring part

[0138] 1A: cylindrical protrusion

[0139] 1B: Center hole

[0140] 2: Valve piston

[0141] 21: Mandrel

[0142] 22: Outer skirt

[0143] 23: Inner skirt

[0144] B: Matrix

[0145] BA: Support shaft

[0146] BA1: Large arc

[0147] BA2: Small arc

[0148] BA3: 1st String

[0149] BA4: 2nd String

[0150] B1: Main cylinder

[0151] B2: Auxiliary cylinder

[0152] B2A: Bottom of the auxiliary cylinder

[0153] B2B: Vertical groove of auxiliary cylinder

[0154] C: Hood

[0155] C1: Support wall

[0156] C2: Stopper

[0157] D: Piston

[0158] E: Wrench

[0159] E1: Bearing hole

[0160] F: Nozzle

[0161] G: cover

[0162] H: Introduction tube

[0163] I: Return spring for wrench

[0164] J: Container

[0165] K: Sealing pad

[0166] FV: Primary Valve

[0167] P1: Channel 1

[0168] P2: Second channel

[0169] P3: 3rd channel

[0170] S: Small space department.

Claims

1. A pressure storage sprayer, characterized in that: The pressure storage sprayer is composed of parts made of polyolefin, each of which includes: a nozzle part; a base part, the base part has a sub-cylinder part at the top and a main cylinder part at the bottom, the base part also has a first channel part leading from the container to the main cylinder part, a second channel part leading from the main cylinder part to the sub-cylinder part, and a third channel part from the sub-cylinder part to the nozzle part; a piston part, the piston part slides in the main cylinder part; a wrench part, the wrench part uses the supporting shaft part protruding from the side of the base as a fulcrum Rotate to slide the piston portion backward; a wrench return spring (I), the wrench return spring causes the wrench portion (E) to return forward; a primary valve, the primary valve is arranged in the first channel portion; a secondary valve structure, the secondary valve structure is assembled on the auxiliary cylinder portion; an inlet pipe, the inlet pipe is used to absorb liquid in the container and allow the liquid to pass through; a cover portion, the cover portion covers the base portion from above; a cover portion, the cover portion is used to be installed on the container; and a sealing gasket, the sealing gasket seals the cover portion and the base portion.

2. The pressure storage sprayer according to claim 1, characterized in that: The secondary valve structure is composed of a spring portion and a valve piston portion, and the spring portion and the valve piston portion are integrally formed.

3. The pressure storage sprayer according to claim 1, characterized in that: The secondary valve structure is in an unloaded state in which no compressive force is applied in the vertical direction when the secondary valve structure is initially installed in the pressure storage type sprayer.

4. The pressure storage sprayer according to claim 1, characterized in that: The cross-sectional shape of the support shaft portion formed on the base body includes a large arc portion and a small arc portion, and a cutout portion is formed between the large arc portion and the small arc portion.

5. The pressure storage sprayer according to claim 3, characterized in that: Assuming that the distance between the bottom of the sub-cylinder portion and the supporting wall portion of the cover portion is L2, and the vertical length of the secondary valve structure when no load is L1, the relationship between the two is L2>L1.

6. The pressure storage sprayer according to claim 1, characterized in that: The wrench and the return spring are integrally injection molded during manufacture.

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