KR20230146969A - Pumping dispenser - Google Patents

Abstract

In the present invention, all the component parts can be manufactured only from non-metallic materials so that the pumping device after use can be immediately discharged and recycled together with the container without the need for separate disassembly or disassembly, and an elastic band of an elastic material such as elastomer can be used to raise and return the pumping member. It is possible to increase the stability of pumping operation by securing sufficient pressure. In particular, it is a non-metallic pumping device for discharging contents that does not cause destruction or rupture of the elastic band during use because the elastic band, which has weak chemical resistance, does not come into contact with the contents of the container. It's about.
In order to achieve the above object, a non-metallic pumping device for discharging contents according to the present invention includes a pumping member for pumping and discharging the contents of a container; and a non-metallic return means for lifting and returning the pumping member, wherein the non-metallic return means is made of an elastic material with a predetermined elastic force, and is extrapolated to the pipe body of the pumping member, with the upper end fixed to the upper end of the cylinder and the lower end. The end is fixed and connected to the tube body and is composed of an elastic band having an elastic portion that exerts elastic force in the compression direction, and the elastic portion is formed by removing a cylindrical elastic portion connected up and down and a portion of the side portion opposing the elastic portion. It is characterized by including an incision.

Description

Non-metallic pumping device for discharging contents {PUMPING DISPENSER}

In the present invention, all the component parts can be manufactured only from non-metallic materials so that the pumping device after use can be immediately discharged and recycled together with the container without the need for separate disassembly or disassembly, and an elastic band of an elastic material such as elastomer can be used to raise and return the pumping member. It is possible to increase the stability of pumping operation by securing sufficient pressure. In particular, it is a non-metallic pumping device for discharging contents that does not cause destruction or rupture of the elastic band during use because the elastic band, which has weak chemical resistance, does not come into contact with the contents of the container. It's about.

Pumping devices used to discharge contents from containers filled with liquid, gel, or cream types are widely used in various technical fields such as cosmetics, detergents, and shampoos.

In a typical pumping device, a pumping part elastically supported by a spring is coupled to the head of a container to which an injection pipe is connected, and an opening and closing ball is provided at the inlet inside the stopper. When the pumping part is pressed, the spring is compressed and the contents inside the head are discharged, and the pumping part When the external force is relieved, the pumping part rises and returns due to the spring, and the pressure inside the head is lowered, so the ball that closed the inlet is lifted and opened, and the head is filled with the contents again.

However, in a conventional pumping device, the spring and the opening/closing ball are made of metal, and the remaining parts excluding these are made of synthetic resin (plastic) such as PET. When the product is separated and discharged after use, it must be pumped to be recycled. There is the inconvenience of having to disassemble or dismantle the device and separate the metal and non-metal parts from each other before discharging them.

Accordingly, in most cases, the pumping device is discharged together with the container or separately, so collection companies perform additional separation work for recycling after collecting the product. This additional separation work for recycling costs a lot of money. There is a problem that it is very inefficient because it is time consuming.

Therefore, in recent years, there has been a growing need for technology in which the discharging mechanism of the container, including the pumping device, is manufactured only from synthetic resin of the same material as the container, which allows for convenient separate collection and reduces the cost and time required for recycling, thereby contributing to environmental conservation.

At the government level in each country, measures are being implemented (or prepared) to legislate and regulate this.

As a prior art related to this, there is Patent Publication No. 10-2004-0062305.

The published patent discloses a head with a discharge hole formed inside that the user presses, a shaft connected to the lower part of the head and a guide hole connected to the discharge hole, and a housing that stores the shaft inside and has an inlet at the lower end through which contents flow. , It relates to a pump dispenser for discharging the liquid contents inside the container, which is installed at the lower part of the shaft and has guiding means for guiding the contents inside the housing to the guide hole as the head is pressed,

a spring whose upper end is supported on the bottom of the guide means, whose lower end is supported on the inner lower side of the housing, and which is molded from a synthetic resin material and has an elastic force to press the guide means pressed by the head in an upward direction; and a plurality of protrusions formed centrally from the inner surface of the housing so that the lower surface of the spring is stored inside and forms a constant gap between the inner surface and the inner surface of the housing, and a support jaw overlying the lower surface is formed in the middle portion. It is characterized by including ribs.

The published patent is a structure in which a zigzag synthetic resin spring is used and the ball is still placed on the inlet, and when restored by the spring, the ball is lifted and the inlet is opened to suck the contents into the housing, and then the ball is released. It descends again, closing the inlet, and the contents are discharged through a pumping operation.

However, since the above-mentioned published patent has a structure in which the synthetic resin spring is exposed inside the housing, the spring is exposed and comes into contact with chemicals such as surfactants contained in the contents of shampoo, etc., and in the case of the synthetic resin spring, chemical resistance is weak. Therefore, there is a problem in that the synthetic resin spring frequently breaks down or breaks during use or fails due to loss of elasticity.

Accordingly, the present invention was devised to solve the problems described above.

In order to be immediately discharged and recycled along with the container, an elastic band made of elastic material such as elastomer can increase the stability of pumping operation by securing sufficient pressure for the upward return of the pumping member. In particular, an elastic band with weak chemical resistance can increase the stability of the pumping operation. The purpose is to provide a non-metallic pumping device for discharging contents that does not come into contact with the contents and does not cause destruction or rupture of the elastic band during use and maintains elasticity sufficient to not cause difficulty in pumping operation, making it convenient to use. do.

In order to achieve the above object, the non-metallic pumping device for discharging contents according to the present invention,

A pumping member that pumps and discharges the contents of the container; and

Includes; non-metallic return means for upwardly returning the pumping member;

The non-metallic return means is,

It is an elastic material with a predetermined elastic force, extrapolated to the pipe body of the pumping member, the upper end is fixed to the upper end of the cylinder, the lower end is fixed and connected to the pipe body, and has an elastic portion that exerts elastic force in the compression direction. Consisting of a band,

The elastic portion is characterized in that it includes a cylindrical elastic portion connected vertically and a cutout portion formed by removing a portion of a side portion opposing the elastic portion.

And in the non-metallic pumping device for discharging contents according to the present invention,

The elastic portion has the width of the upper and lower cavities, and the incisions are formed in a pair facing each other, and both ends of each incision are formed in a vertical direction.

In addition, in the non-metallic pumping device for discharging contents according to the present invention,

The pumping head of the pumping member is,

A head portion coupled to the top of the pipe body,

The head part is hinged and rotates up and down, and the head part includes a nozzle part that is supported by being caught by the upper cap when the head part is rotated downward.

In addition, in the non-metallic pumping device for discharging contents according to the present invention,

It is characterized by further comprising a locking means for locking the pumping member through rotation of the tubular body.

The non-metallic pumping device for discharging contents according to the present invention,

The upward and return operation of the pumping member is performed with an elastic band made of an elastic material such as elastomer, so the pumping member can be easily discharged together with the container for convenient recycling. In particular, the elastic band with weak chemical resistance does not come into contact with the contents of the container. The stability of the pumping operation is excellent by maintaining the pressing pressure required for pumping operation at an appropriate level without causing destruction or rupture of the elastic band during use, and by securing sufficient elastic force necessary for the upward return of the pumping member.

The organic operation of each part by the elastic band has the effect of properly pumping and discharging the contents.

In addition, the present invention is provided with a nozzle folding pumping head, so that the opening and closing of the discharge port is achieved through rotation of the nozzle. In particular, when the nozzle is folded, the nozzle is caught on the upper cap and the head portion is not pressed, so that the pumping member is pressed when not in use and the contents are spilled. prevent discharge,

As the nozzle is precisely aligned with the upper cap and folded, the contents can be prevented from scattering and being discharged through the upper part of the nozzle during pumping operation.

In addition, at the time of final shipment or during unused storage, the pumping member is completely locked by rotating the tube body, which has the effect of reducing the volume of the dispenser product and storing it safely.

1 to 3 are cross-sectional views of the present invention.
Figure 4 is a perspective view of an elastic band according to the present invention.
5 to 10 are perspective and cross-sectional views for explaining the pumping head of the present invention.
11 to 14 are a front view, a cross-sectional view, and a perspective view for explaining the locking means of the present invention.

Since the present invention can be subject to various changes and can have various forms, implementation examples (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to a specific posting form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention.

In each drawing, the same reference signs, especially the tens and ones digits, or the same tens, one's, and alphabets, indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference sign can be understood as a member that complies with these standards.

In addition, in each drawing, the components are expressed exaggeratedly large (or thick), small (or thin), or simplified in size or thickness in consideration of convenience of understanding, etc., but as a result, the scope of protection of the present invention is interpreted as limited. It shouldn't be.

The terms used in this specification are merely used to describe specific implementation examples (sun, aspect, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as ~include~ or ~consist of~ are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

~First~, ~Second~, etc. described in this specification are only used to distinguish different components, and are not limited by the order of manufacture, and the names are used in the detailed description and claims of the invention. may not match.

In explaining the non-metallic pumping device for discharging contents according to the present invention, for convenience, if an approximate direction standard that is not strict is specified with reference to FIG. 1, the direction in which gravity acts is set to the bottom, and the up, down, left, and right are determined as shown, In the detailed description and claims of the invention related to other drawings, directions are specified and described according to this standard, unless otherwise specified.

Hereinafter, a non-metallic pumping device for discharging contents according to the present invention will be described with reference to the attached drawings.

The present invention relates to a non-metallic pumping device for discharging contents used in containers such as shampoo,

A pumping member (P) that pumps and discharges the contents of the container, including the cylinder (10), the tube body (20), the piston (30), and the stem (40),

It includes a non-metallic return means for lifting and returning the pumping member (P),

At this time, all parts are made of non-metallic material, and are characterized in that the upward return of the pumping member (P) is achieved using an elastic band (50) made of an elastic material such as elastomer.

Specifically, the cylinder 10 is inserted and coupled into the container, has a lower inlet 11 and an internal filling part 12, and is coupled to the upper part of the filling part 12 to form a hoistway 131. It includes a chapel (13).

In this cylinder 10, the filling part 12 and the hoistway 131 communicate with each other at the upper part of the inlet 11, and a content supply pipe (not shown) is coupled to the inlet 11 to form the inlet 11. An opening and closing member 14 is provided inside.

The chapel 13 is fixed by having a flange protruding from the outer peripheral surface of the upper end of the hoistway 131 hooked to the upper end of the cylinder 10.

The opening and closing member 14 opens and closes the inlet 11 according to a change in pressure of the filling part 12. It is inserted into the inlet 11 at the lower end of the cylinder 10 and moves up and down at the inlet 11. It consists of a fitting part 141 that can be coupled, and a shielding part 142 that is connected to the outside of the top of the fitting part 141 and covers the upper edge of the inlet 11.

The fitting portion 141 is connected to the bottom of the shielding portion 142 at a predetermined interval and is composed of a plurality of hook protrusions that are hooked to the end of the inlet 11.

The shielding portion 142 has a larger area than the inlet 11 and opens and closes the inlet 11 through lifting.

The tube body 20 is formed in the shape of a pipe with a discharge passage 21 penetrating in the longitudinal direction, and the discharge port 221 of the pumping head 22 coupled to the upper end of the pipe body 20 is connected to the discharge passage 21. ) is connected to.

In addition, the tube body 20 is fixed by pressing a binding ring 50A, which will be described later, to the outer peripheral surface of the lower end, and a pressing portion 24 on which the piston 30 is caught is formed at the lower part of the binding ring 50A. It is done.

The piston 30 is extrapolated and coupled to the lifting guide part 25 connected to the lower part of the pressurizing part 24 to form a supply port 31, and on the outer circumferential surface is in close contact with the inner wall surface of the cylinder 10. The soft wings 32 are protruding and connected to have a constant coefficient of friction between the inner wall surfaces of the cylinder 10.

At this time, the wing portion 32 is connected to have a similar 'X'-shaped cross section that is symmetrical up and down with respect to the pipe portion, and the piston 30 is coupled to the lifting guide portion 25 to be lifted and lowered.

And the piston 30 prevents the contents of the filling part 12 from flowing into the interior of the chapel 13 through the wing part 32, and generates pumping pressure when descending to fill the filling part 12. ) so that the contents are discharged through the tube body (20).

The stem 40 penetrates the supply port 31 and is fitted and coupled to the lower end of the discharge path 21 of the tube body 20. A coupling that forms a gap while being forcefully fitted inside the discharge path 21. It is provided with a plate 41 and has a structure that engages the lower end of the supply port 31.

This stem 40 moves up and down together with the tube body 20 and opens the supply port 31 while descending together with the tube body 20 with respect to the piston 30. The supply port 31 is closed while rising together with the pipe body 20.

The non-metallic return means is,

It is an elastic material with a predetermined elastic force, and the upper end is fixed to the upper end of the cylinder 10 while extrapolating to the tube body 20 of the pumping member P, and the lower end is fixed and connected to the tube body 20, It consists of an elastic band 50 having an elastic portion 51 that exerts elastic force in the compression direction,

The elastic band 50 includes a cylindrical elastic portion 51 connected up and down, and a cut portion 52 formed by removing a portion of a side portion opposing the elastic portion 51.

The elastic band 50 is made of an elastic material such as elastomer, synthetic rubber, natural rubber, silicone, etc., which expands when pressure above a certain level is applied and has a strong elastic restoration force when external pressure is relieved, in order to generate a pumpable elastic force when compressed. It is preferably made of elastomer, specifically PP elastomer.

As this elastic band 50 is made of an elastic material with the above-described characteristics, its durability, i.e., chemical resistance, to chemicals such as the surfactant of shampoo, such as the contents of the container, is inevitably weaker than that of general plastic.

According to the present invention, the contents are not introduced into the chapel 13 by the piston 30 when the elastic band 50 is embedded inside the chapel 13, so durability due to contact with surfactants, etc. Since no deterioration occurs, destruction or breakage of the elastic band 50 does not occur during use.

Specifically, the elastic band 50 has a cylindrical elastic portion 51, a cut portion 52 from which a portion of the elastic portion 51 is removed, and a protrusion outward from the upper end of the elastic portion 51. It includes a locking protrusion 53 and a binding portion 54 extending longitudinally from the lower end of the elastic portion 51.

In particular, the elastic portion 51 has a width of the upper and lower narrows, and the cut portions 52 are formed in a pair facing each other, and both ends of each cut portion 52 are cut so that they have the same depth in the vertical direction. is formed.

That is, the cut portion 52 is formed in a symmetrical shape on both sides opposing each other in the elastic portion 51, and the cut depth is formed to gradually decrease from the upper end to the lower end of each cut portion 52, so that the cut portion 52 is cut on both sides. The expansion and contraction portion 51 of the portion 52 is formed in the shape of a rectangular band with the same or similar left and right widths up and down.

And the locking protrusion 53 is caught on the upper end of the cylinder 10 (more precisely, the upper surface of the flange of the chapel 13) and is fixed by the upper cap, so that the elastic band 50 is attached to the lower part of the cylinder 10. It prevents it from descending.

In addition, the binding ring 50A is extrapolatedly inserted into the binding portion 54 in an interference fit manner so as to be bound to the binding portion 54, that is, the outer peripheral surface of the elastic band 30 pipe body 20.

The reason for adopting the elastic band 50 of this specific shape is that, when the elastic band 51 is made into a simple cylindrical shape, the upper and lower thicknesses are the same, so expansion pressure is generated throughout the elastic band 51, resulting in a large pressure when pressed. This is because it requires .

Accordingly, the above-mentioned problem is solved by the elastic part 51 of the upper and lower narrow structure, and in particular, the area of the elastic part 51 is reduced by the double-sided cut part 52, so that the pumping member P can be pressed with less pressure.

Furthermore, by making the left and right widths of the elastic portion 51 the same or similar up and down, the elastic force acts uniformly when returning to the upward position after pressing, thereby facilitating the elevation of the tubular body 20, thereby smoothing the pumping operation.

When explaining the pumping principle of the present invention having this configuration,

First, when external pressure is not applied to the pumping head 22, the pumping member P is raised to the upper side of the cylinder 10 due to the action of elastic force caused by compression of the expansion and contraction portion 51.

And when the pumping head 22 is pressed, only the stretching portion 51 expands while the locking protrusion 53 is fixed to the upper end of the cylinder 10, thereby causing the tube body 20 to be compressed by the binding portion 54. ) begins to descend, and at this time, due to the friction coefficient of the piston 30, the tube body 20 and the stem 40 first descend (i.e., the tube body 20) in a stopped state. As the piston 30 rises, the supply port 31 opens.

When the pipe body 20 continues to descend while the supply port 31 is open, the pressurizing portion 24 presses the piston 30 to descend together, and as the pumping member P continues to descend in this way, Accordingly, as the elastic portion 51 expands, elastic force is generated in the compression direction.

And as the downward pressure of the piston 30 and the stem 40 is applied to the opening and closing member 14, the shielding part 142 covers and seals the inlet 11, thereby forming the filling part 12. Inside, pumping pressure is generated by the piston 30 and stem 40, and the pumping pressure thus generated discharges the contents of the filling part 12 to the upper supply port 31, thereby discharging the filling part 12. The contents pass through the discharge path 21 and are finally discharged to the discharge port 221 of the pumping head 22.

And when you release your hand from the pumping head 22 after discharging the contents, the expansion and contraction portion 51 is compressed and the pipe body 20 returns to its upward position. At this time, due to the friction coefficient of the piston 30, the pipe body 20 and The stem 40 rises together first, and in a state where the supply port 31 is closed, the stem 40 pushes the piston 30 upward and rises together.

And the opening and closing member 14 rises due to the rising pressure of the piston 30, and the hook protrusion of the fitting part 141 is caught on the bottom of the edge of the inlet 11, so that the inlet 11 is opened, The suction pressure of the piston 30 acts through the opened inlet 11, and the contents in the container are pumped to the filling part 12 and refilled.

In addition, the present invention includes a stopping means that limits the lowering of the pumping member (P) when not in use.

For this purpose, as shown in FIGS. 5 to 10, the pumping head 22,

A head portion 222 coupled to the top of the tube body 20,

It includes a nozzle portion 223 that is hinged to one end of the head portion 222 and rotates up and down, and whose front end is supported by being caught by the upper cap 23 when rotated downward.

The head portion 222 has a communication passage 224 connected to one side at the top of the discharge passage 21, and a shaft portion 225 to which the nozzle portion 223 is axially coupled to the outside of the communication passage 224. ) is formed.

The head portion 222 has a discharge port 221 formed in the longitudinal direction, and a hinge portion 226 hinged to the shaft portion 225 is provided at the rear end.

The nozzle unit 223 may have a square cross-section as shown in FIGS. 5 and 6, or a circular cross-section as shown in FIGS. 7 and 8.

In addition, the nozzle portion 223 is provided with a stopping groove portion 227 at the distal end corresponding to the shape of the upper end of the upper cap 23, and the outlet of the discharge port 221 is located at the lower part of the stopping protrusion 228. Opened and connected.

The stopping concave portion 227 is formed by cutting a portion of the lower end of the nozzle portion 223 and is formed by a locking protrusion 228 that protrudes in the longitudinal direction.

In addition, the upper surface of the stopping groove 227, that is, the lower surface of the locking protrusion 228, is formed to correspond to the shape of the upper cap 23, especially the planar shape. Typically, the upper cap 23 has a circular plane. ) It is preferable that it is formed as a round part with a predetermined curvature corresponding to.

Accordingly, when the nozzle part 223 is rotated upward and unfolded in the horizontal direction, the inlet of the discharge port 221 is aligned with the outlet of the communication passage 224 and is opened, and pressure on the head part 222 is applied. This makes it possible to use the contents by discharging them through a pumping operation.

At this time, the outlet of the discharge port 221 is provided below the stopping protrusion 228 forming the upper surface of the stopping groove portion 227, so that the contents discharged during the pumping operation can be prevented from scattering upward.

And when the nozzle part 223 is rotated downward and folded in the vertical direction, the stopping groove part 227 is supported by being caught by the upper edge of the head part 222.

In this state, the hinge part 226 blocks the outlet of the communication passage 224 and the nozzle part 223 limits the downward movement of the head part 222, so that the pumping member P when not in use Prevents unintentional lowering operation and pumping operation.

Meanwhile, the present invention further includes a locking means that locks the pumping member (P) through rotation of the tubular body (20) when not in use, together with or separately from the stopping means.

First, the tube body 20 is extrapolated to the inner tube 20A, in which the piston 30, the stem 40, and the elastic band 50 are combined, and the pumping head 22 is coupled to the inner tube 20A. It is composed of an outer tube (20B), and the outer tube (20B) is coupled to the inner tube (20A) so as to be capable of being raised and lowered.

And as an example of the locking means,

The inner tube (20A) includes a locking protrusion 201 protruding from a portion of the outer peripheral surface,

The outer tube 20B has an inner diameter that is press-fitted into the locking protrusion 201, and includes an unlocking groove 202 in which a portion of the lower part is cut to accommodate the locking protrusion 201.

The inner tube (20A) is fixed to the upper cap (23) by the elastic band (50) and the chapel (13), so that only an upward return operation is possible after lowering, and left and right rotation is prevented (even if rotated, the elastic band (50) Therefore, the angle is limited and elastically returns to the original position. It is preferable that two or more locking protrusions 201 are provided at opposing positions or radial positions on the outer peripheral surface.

The outer tube 20B is provided with two or more unlocking grooves 202 cut in the longitudinal direction at the lower end to correspond to the locking protrusion 201, and has a cut piece (202) with the unlocking groove 202 in between. 203) are arranged, and the fixing ring member 204 is extrapolatedly fitted.

The fixing ring member 204 is fixed to the bottom side of the upper cap 23 (fixed by being inserted into the cylinder 10 or the chapel 13), so that when the outer tube 20B is raised, the cut pieces 203 are formed. As they are interpolated into the fixing ring member 204, the diameter expandability of the cut pieces 203 is limited.

Accordingly, in a state in which the outer tube 20B is lowered with respect to the inner tube 20A, the outer tube 20B is rotated at a predetermined angle so that the unlocking groove 202 is misaligned with the locking projection 201. As a portion of the upper end of the locking projection 201 is forcefully fitted to the inner peripheral surface of the outer tube 20B, the outer tube 20B, that is, the tube body 20, is locked and cannot be used.

This locking state is maintained at the time of final shipment of the dispenser product, reducing the volume and performing a locking function. The locking function is used when the product is stored in an unused state even after opening.

And when using a dispenser product, when the external pipe (20B) is pulled out upward while rotating the pumping head (22) at a predetermined angle, the locking protrusion 201 is aligned with the unlocking groove 202 and is pressed into place. The state is released, and the outer tube 20B can be pulled out upward with respect to the inner tube 20A.

When the outer tube 20B is rotated again at a predetermined angle in a state in which the outer tube 20B is completely pulled out, the locking protrusion 201 is separated from the lower part of the unlocking groove 202 and the outer tube 20B ) or is forcefully fitted to the inner circumferential surface of the outer tube (20B), the outer tube (20B) is bound to the inner tube (20A), thereby enabling pumping operation using the tube body (20).

At this time, when the rise is completed, the inner diameter of the outer tube (20B) is not expanded as the cut pieces (203) are inserted into the fixing ring member (204), so the binding state of the inner tube (20A) and the outer tube (20B) is maintained. When the locking function is needed again, the outer tube (20B) is rotated at a predetermined angle and the unlocking groove (202) is aligned with the locking protrusion (201) and separated by force. Due to the difference in inner diameter, the inner tube (20A) and the outer tube (20A) are separated. As the pipes 20B become loose from each other, the outer pipe 20B can be lowered and then locked again as above for storage.

And in another embodiment of the locking means,

A first screw thread 205 formed in the longitudinal direction is provided on the outer peripheral surface of the inner tube 20A,

A second screw thread 206 engaged with the first screw thread 205 is provided on the inner peripheral surface of the outer pipe 20B.

While the first screw thread 205 is formed to correspond to the entire length of the inner tube 20A, the second screw thread 206 is formed only on a portion of the lower end of the outer tube 20B,

At this time, in order to enable assembly of the outer tube (20B) with respect to the upper cap (23) and to prevent the outer tube (20B) from being separated, the outer tube (20B) is coupled to the lower end and the upper cap ( It further includes a screw ring member 207 having an outer diameter that can be caught by 23) and having the second screw thread 206.

Accordingly, when the outer pipe (20B) is rotated to the right using the pumping head (22), the outer pipe (20B) is lowered while being screw-locked with respect to the inner pipe (20A),

When the outer pipe (20B) is rotated to the left using the pumping head (22), the outer pipe (20B) is unscrewed in a screw manner and rises with respect to the inner pipe (20A).

At the time of final shipment or during unused storage, the outer pipe (20B) is locked and fixed, and only when in use, the outer pipe (20B) is unlocked to enable pumping operation.

Meanwhile, in the screw-type locking means, the outer tube (20B) continues to rotate and goes up and down, and at this time, the elastic band (50) fixes the inner tube (20A) by the binding ring (50A). The inner tube 20A and the fastening portion 54 can rotate together at a predetermined angle.

If the rotation of the inner tube (20A) continues, the screw-type lifting of the outer tube (20B) does not occur, so the elastic band 50 holds the inner tube (20A) so that the outer tube (20B) is screwed. Elevation must occur, but if the elastic band 50 is excessively twisted due to rotation of the binding portion 54, the elastic portion 51 may be broken and damaged.

Accordingly, the present invention has a plurality of fixing protrusions (50a) protruding on the outer peripheral surface of the binding ring (50A), and a plurality of stopping protrusions (13a) corresponding to the fixing protrusions (50a) on the inner peripheral surface of the chapel (13). ) is protruding.

Accordingly, even if the elastic band 50 rotates together with the inner tube 50A and is twisted, the fixing protrusion 50a is caught by the stopping protrusion 13a to prevent the binding portion 54 from rotating excessively, When the lifting of the outer pipe (20B) is completed, the binding portion (54) and the binding ring (50A) rotate back to their original positions due to the elastic force of the elastic portion (51), thereby smoothing the pumping operation using the elastic band (50). You can do it.

In the above description of the present invention, the non-metallic pumping device for discharging the contents has been mainly described with reference to the accompanying drawings. However, the present invention can be subjected to various modifications, changes and substitutions by those skilled in the art, and such modifications, changes and substitutions are of the present invention. It should be interpreted as falling within the scope of protection.

*Explanation of main parts of the drawing*
P: Pumping member
10: cylinder 20: pipe body
30: Piston 40: Stem
50: elastic band

Claims (4)

A pumping member that pumps and discharges the contents of the container; and
Includes; non-metallic return means for upwardly returning the pumping member;
The non-metallic return means is,
It is an elastic material with a predetermined elastic force, extrapolated to the pipe body of the pumping member, the upper end is fixed to the upper end of the cylinder, the lower end is fixed and connected to the pipe body, and has an elastic portion that exerts elastic force in the compression direction. Consisting of a band,
A non-metallic pumping device, characterized in that the elastic part includes a cylindrical elastic part connected up and down, and a cutout part formed by removing a part of a side part opposing the elastic part.
According to claim 1,
A non-metallic pumping device, characterized in that the expansion and contraction portion has a width of the upper and lower margins, and the incisions are formed in a pair facing each other, and both ends of each incision are formed in a vertical direction.
According to claim 1,
The pumping head of the pumping member is,
A head portion coupled to the top of the pipe body,
A non-metallic pumping device comprising a nozzle portion that is hinged to the head portion and rotates up and down, and whose tip portion is supported by being caught by the upper cap when rotated downward.
The method according to any one of claims 1 to 3,
A non-metallic pumping device further comprising locking means for locking the pumping member through rotation of the tubular body.

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