WO2020155658A1 - 一种给料装置 - Google Patents

一种给料装置 Download PDF

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Publication number
WO2020155658A1
WO2020155658A1 PCT/CN2019/108975 CN2019108975W WO2020155658A1 WO 2020155658 A1 WO2020155658 A1 WO 2020155658A1 CN 2019108975 W CN2019108975 W CN 2019108975W WO 2020155658 A1 WO2020155658 A1 WO 2020155658A1
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WO
WIPO (PCT)
Prior art keywords
plunger
feeding device
sealing ring
reset mechanism
elastic reset
Prior art date
Application number
PCT/CN2019/108975
Other languages
English (en)
French (fr)
Inventor
丁要武
Original Assignee
丁要武
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Filing date
Publication date
Application filed by 丁要武 filed Critical 丁要武
Publication of WO2020155658A1 publication Critical patent/WO2020155658A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/0005—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container
    • B65D83/0022—Containers or packages provided with a piston or with a movable bottom or partition having approximately the same section as the container moved by a reciprocable plunger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/04—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, or spherical or like small articles, e.g. tablets or pills
    • B65D83/0409—Containers or packages with special means for dispensing contents for dispensing annular, disc-shaped, or spherical or like small articles, e.g. tablets or pills the dispensing means being adapted for delivering one article, or a single dose, upon each actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/06—Containers or packages with special means for dispensing contents for dispensing powdered or granular material

Definitions

  • the invention relates to a feeding device for distributing products from a container, and the feeding device can dispense products quantitatively.
  • such dosing devices are provided with a one-way valve that enables the product to be dispensed from the container while preventing the product from flowing back into the container. Further, in some cases, the dispensed product can be quantified through the one-way valve.
  • the product in the container will contain solid particles, so that after a period of use, the one-way valve may be blocked by the solid particles and cannot continue to be used normally, and the existing feedstock
  • the quantitative of the one-way valve in the device is sometimes not accurate.
  • the air pressure inside and outside the container cannot be effectively balanced, which may cause leakage.
  • a balance hole needs to be provided in the feeding device, which increases the complexity of the structure of the device.
  • the container is often used upside down, which may also cause the check valve to fail to work normally.
  • the present invention solves at least one of the above-mentioned problems existing in the prior art feeding device through a novel feeding device structure.
  • the purpose of the present invention is to provide a feeding device which has a simple structure, can reduce or avoid the risk of clogging of the feeding channel, and is reliable in operation.
  • the feeding device of the present invention can be used to dispense products from a container. It includes: a device main body.
  • the device main body includes a columnar wall.
  • the columnar wall forms a cavity and includes a feeding port and a discharge port.
  • the feeding port is in communication with the inside of the container.
  • a sealing member is provided in the cavity.
  • the sealing member includes a tolerance and can reciprocate in the cavity between a first position and a second position. In the first position, The tolerance is communicated with the feed port and is sealed relative to the discharge port of the cavity. In the second position, the tolerance is communicated with the discharge port of the cavity and is sealed relative to the feed port.
  • the sealing member may be located at the above-mentioned first position or at the above-mentioned second position, which is all included in the scope of the present invention.
  • the feeding device With the above structure, its structure is simple. Through the reciprocating sealing member, the tolerance in the sealing member is alternately communicated with the inside of the container and the outside of the cavity, thereby realizing the distribution of the product in the container, and the product The risk of blockage is small. Moreover, while the product is being dispensed, the same volume of external air can occupy the volume of the tolerance and finally enter the container, thereby achieving pressure balance inside and outside the container, and further avoiding product leakage from the container.
  • the sealing member is a plunger.
  • the plunger includes a plunger rod and a first seal ring and a second seal ring formed on the plunger rod.
  • the first seal ring and the second seal ring are spaced apart so that the first seal A tolerance is formed between the ring and the second sealing ring.
  • the plunger includes a first plunger part and a second plunger part, the first sealing ring is formed on the first plunger part, and the second sealing ring is formed on the second plunger part, wherein the first plunger
  • the plug part and the second plunger part can move relative to each other, thereby adjusting the distance between the first sealing ring and the second sealing ring.
  • the amount of product to be dispensed can be set according to needs.
  • first plunger part and the second plunger part may be connected to each other through a threaded structure.
  • the cavity includes a small-diameter part and a large-diameter part.
  • the first sealing ring and the second sealing ring interfere with the cylindrical wall at the small-diameter part
  • the first sealing ring is still in the small diameter part and maintains an interference fit with the cylindrical wall, while the second sealing ring enters the large diameter part and forms a gap between the second sealing ring and the cylindrical wall.
  • the first sealing ring and the second sealing ring are in interference fit with the cylindrical wall
  • the first sealing ring maintains the interference fit with the cylindrical wall
  • the second The seal ring moves out of the cavity
  • the cavity includes a small diameter portion and a large diameter portion, and the diameter of the first seal ring is smaller than the diameter of the second seal ring, wherein, in the first position, the first seal ring is at the small diameter portion In the interference fit with the cylindrical wall, the second sealing ring is in the interference fit with the cylindrical wall at the large diameter part. In the second position, the first sealing ring is still in the small diameter part and maintains the interference fit with the cylindrical wall, while the second sealing ring The ring moves out of the cavity.
  • the feeding device further includes an elastic reset mechanism, one end of the elastic reset mechanism directly or indirectly abuts on the sealing member, and the other end directly or indirectly abuts on the device body.
  • the feeding device includes an actuating member, the sealing member is connected to the actuating member, and the actuating member can move relative to the device body, thereby driving the sealing member to move between the first position and the second position.
  • the actuating member is a pressing cover, one end of the spring abuts on the pressing cover, and the other end of the spring abuts on the device body.
  • the sealing member in the standby state, the sealing member is in the second position, and its tolerance is in communication with the discharge port.
  • the sealing member is moved to the first position against the elastic force of the spring by pressing the pressing cover , So that the tolerance and the feed port are connected.
  • the feeding device further includes a distribution cover fixedly installed at the discharge port of the main body of the device, the distribution cover is provided with a distribution port, wherein the actuating member is a stretch cover, and one end of the spring abuts On the sealing member, the other end of the spring abuts on the distribution cover.
  • the sealing member in the standby state, the sealing member is in the first position, and its tolerance is in communication with the feed port.
  • the sealing member is moved to the second position against the elastic force of the spring by applying a pulling force to the stretch cover Position so that the tolerance is connected to the discharge port.
  • the sealing member includes a spring support rod.
  • the spring support rod penetrates the hole on the top wall of the device body to extend into the container, and the spring support rod extends into the container.
  • a flange portion is formed at one end, one end of the elastic reset mechanism abuts on the flange portion, and the other end abuts on the outer surface of the top wall.
  • the elastic reset mechanism includes at least one elastic strip, one end of the elastic strip directly or indirectly abuts on the reciprocating sealing member, and the other end of the elastic strip directly or indirectly abuts on the device main body, And wherein: the elastic reset mechanism can rotate relative to the sealing member, a preloading structure is provided between the elastic resetting mechanism and the sealing member, and the elastic strip is in the unloaded state and the preloaded state through the rotation of the elastic reset mechanism relative to the sealing member Or the elastic reset mechanism can rotate relative to the device body, and a preload structure is provided between the elastic reset mechanism and the device. Through the rotation of the elastic reset mechanism relative to the device body, the elastic strip is in the unloaded state and the preloaded state. Switch between.
  • This structure is especially useful for the elastic reset mechanism in which the elastic strip is made of plastic.
  • the elastic strip can be in an unloaded state in the standby state, thereby preventing the elastic strip from being loaded for a long time. State and yield deformation, prolong the service life of the device.
  • the preloading structure includes: a spiral groove provided on one of the elastic resetting mechanism and the sealing member, and a spiral protrusion provided on the other of the elastic resetting mechanism and the sealing member; or the preloading structure includes: A spiral groove provided on one of the elastic reset mechanism and the device main body, and a spiral convex strip provided on the other of the elastic reset mechanism and the device main body.
  • Figure 1a shows a cross-sectional view of the feeding device of the first embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Fig. 1b shows a cross-sectional view of the feeding device shown in Fig. 1a in another state.
  • Fig. 2a shows a cross-sectional view of the main body of the feeding device of Fig. 1a.
  • Figure 2b shows a perspective view of the feeding device of Figure 2a.
  • Figure 3a shows a cross-sectional view of the plunger on the feeding device of Figure 1a.
  • Figure 3b shows a perspective view of the plunger of Figure 3a.
  • Fig. 4a shows a cross-sectional view of the pressing cover on the feeding device of Fig. 1a.
  • Fig. 4b shows a perspective view of the pressing cover of Fig. 4a.
  • Figure 5a shows a cross-sectional view of the dispensing cover on the dosing device of Figure 1a.
  • Figure 5b shows a perspective view of the dispensing cover of Figure 5a.
  • Figure 5c shows a bottom view of the dispensing cover of Figure 5a.
  • Figure 6a shows a cross-sectional view of the feeding device of the second embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Fig. 6b shows a cross-sectional view of the feeding device of Fig. 6a in another state.
  • Figure 7a shows a cross-sectional view of the feeding device of the third embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Fig. 7b shows a cross-sectional view of the feeding device of Fig. 7a in another state.
  • Figure 8a shows a cross-sectional view of the feeding device of the fourth embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Fig. 8b shows a cross-sectional view of the feeding device of Fig. 8a in another state.
  • Figure 9a shows a cross-sectional view of the feeding device of the fifth embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Fig. 9b shows a cross-sectional view of the feeding device of Fig. 9a in another state.
  • Figure 10a shows a cross-sectional view of the feeding device of the sixth embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Fig. 10b shows a cross-sectional view of the feeding device of Fig. 10a in another state.
  • Figure 11 shows a front view of the second plunger portion of the plunger in Figures 10a and 10b.
  • Figure 12a shows a cross-sectional view of the feeding device of the seventh embodiment of the present invention, wherein the elastic reset mechanism of the feeding device is in an unloaded state.
  • Fig. 12b shows another cross-sectional view of the feeding device in Fig. 12a, wherein the elastic reset mechanism of the feeding device is in a preload state.
  • Fig. 12c shows another cross-sectional view of the feeding device in Fig. 12a, wherein the elastic reset mechanism of the feeding device is in a compressed state.
  • Figure 13 shows a perspective view of the feeding device of Figure 12a.
  • Figure 14a shows a front view of the plunger of the feeding device of Figure 12a.
  • Figure 14b shows a perspective view of the plunger shown in Figure 14a.
  • Fig. 15a shows a cross-sectional view of the elastic reset mechanism of the feeding device of Fig. 12a.
  • Fig. 15b shows a perspective view of the elastic reset mechanism of Fig. 15a.
  • Fig. 16a shows a front view of the device body of the feeding device of Fig. 12a.
  • Fig. 16b shows a perspective view of the device body of Fig. 16a.
  • Figure 17a shows a cross-sectional view of the feeding device of the eighth embodiment of the present invention, wherein the feeding device is mounted on a container.
  • Figure 17b shows another cross-sectional view of the feeding device in Figure 17a.
  • Fig. 18 shows a front view of the device body of the feeding device in Fig. 17a.
  • Figure 19 shows a perspective view of the medicine cup of the dosing device in Figure 17a.
  • FIGS. 1 a and 1 b show a feeding device 100 according to a first embodiment of the present invention.
  • a feeding device 100 is installed at the outlet of the container 1, and the feeding device 100 includes a device body 110 and a plunger 120 provided in the device body 110.
  • the device main body 110 is also provided with components such as a pressing cover 130 and a dispensing cover 150, and an elastic reset device, such as a spring 140, is also provided between the pressing cover 130 and the device main body 110 for pressing the pressing cover 130 Then, the pressing cover 130 is reset.
  • the structure of each component of the feeding device 100 will be described in detail below.
  • FIG. 2a and 2b show the structure of the device main body 110, wherein FIG. 2a is a cross-sectional view of the device main body 110, and FIG. 2b is a perspective view of the device main body 110.
  • a chamber 111 is formed in the columnar wall of the device main body 110, and at least one, preferably two feed ports 112 as shown in FIG. 2a are formed on the columnar wall.
  • the chamber 111 The feed port 112 is communicated with the inside of the container 1 so that the fluid product contained in the container 1 can flow into the chamber 111 of the device main body 110.
  • One end of the columnar wall is a closed end, and the other end opposite to the closed end is an open end, forming the discharge port 114 of the cavity 111.
  • the chamber 111 includes a small diameter portion near the feed port 112 and a large diameter portion near the discharge port 114.
  • Such large and small diameter structures can cooperate with and cooperate with the structure of the plunger 120 described below to realize the quantitative distribution of the product in the container 1.
  • a spring receiving groove 113 is further provided on the outer periphery of the cylindrical wall of the device main body 110, and one end of the above-mentioned spring 140 can be supported in the spring receiving groove 113.
  • the other end of the spring 140 is supported on the pressing cover 130. In this way, when the pressing cover 130 is pressed toward the container 1, the spring 140 is compressed, and when the pressing force is removed, the spring 140 can reset the pressing cover 130.
  • the structure of the spring receiving groove 113 is optional.
  • the device body 110 may not include the spring receiving groove 113, and at this time, the spring 140 may be supported on
  • FIG. 3a and 3b show the structure of the plunger 120, wherein FIG. 3a is a cross-sectional view of the plunger 120, and FIG. 3b is a perspective view of the plunger 120.
  • the plunger 120 includes a plunger rod 123 on which a first sealing ring 121 and a second sealing ring 122 are formed spaced apart from each other.
  • a tolerance 124 capable of accommodating the product from the container 1 is formed between the first sealing ring 121 and the second sealing ring 122.
  • a convex ring 125 is formed on one end of the plunger rod 123, and the convex ring 125 can be used to connect the plunger 120 to the pressing cover 130 or the dispensing cover 150, as will be described in detail below.
  • FIG. 4a and 4b show the structure of the pressing cover 130, wherein FIG. 4a shows a cross-sectional view of the pressing cover 130, and FIG. 4b shows a perspective view of the pressing cover 130.
  • the pressing cover 130 includes a plunger connecting rod 131, and the plunger connecting rod 131 extends from the bottom of the pressing cover 130.
  • a recess 133 is formed on the end of the plunger connecting rod 131 away from the bottom of the pressing cover 130, and the recess 133 is used to receive the end of the plunger rod 123 where the convex ring 125 is formed.
  • a concave ring may be formed in the cavity 133 for mating with the convex ring 125 on the plunger rod 123.
  • the plunger connecting rod 131 and the plunger rod 123 may be connected together in other ways.
  • the outer diameter of the plunger rod 123 may be set to be slightly larger than the inner diameter of the recess 133 of the plunger connecting rod 131, so that They interfere with each other, or they can be connected together by welding, welding, threaded connection, etc.
  • a through hole 132 is also formed on the bottom of the pressing cover 130, and the product from the container 1 can be finally dispensed through the through hole 132.
  • FIG. 5a to 5c show the structure of the distribution cover 150, wherein FIG. 5a shows a cross-sectional view of the distribution cover 150, FIG. 5b shows a perspective view of the distribution cover 150, and FIG. 5c shows a bottom view of the distribution cover 150.
  • the dispensing cover 150 may be connected to the main body 110 of the device by a screw connection or the like. As shown in the figure, the dispensing cap 150 includes a dispensing opening 151 through which the product from the container 1 can be dispensed. The dispensing opening 151 can enter and pass through the through hole 132 on the pressing cover 130. A channel 152 is also formed in the distribution cover 150, and the plunger connecting rod 131 of the pressing cover 130 can pass through the channel 152 to be connected with the plunger rod 123 of the plunger 120, as shown in FIGS. 1a and 1b.
  • first seal ring 121 and the second seal ring 122 are both located in the small diameter portion of the chamber 111, and interfere with the cylindrical wall to form a seal, thereby flowing between the first seal ring 121 and the second seal ring 122 The product in the tolerance 124 will not flow further down.
  • the user removes the pressing force exerted on the pressing cover 130, and the distribution cover 150 moves downward under the elastic force of the spring 140 to return to its original unstressed state, as shown in FIG. 1b.
  • the plunger 120 connected to the plunger connecting rod 131 of the pressing cover 130 also moves downward along with it.
  • the second sealing ring 122 moves into the large-diameter part of the chamber 111, and comes out of contact with the cylindrical wall of the device body 110, that is, between the second sealing ring 122 and the cylindrical wall of the device body 110 is formed Gap.
  • the product contained between the first sealing ring 121 and the second sealing ring 122 flows into the distribution cover 150 through the gap, and flows to the outside through the distribution opening 151 of the distribution cover 150.
  • the first seal ring 121 is still in the small diameter portion of the chamber 111 and is located below the feed port 112, so that the first seal ring 121 and the second seal ring 122 are The clearance 124 therebetween is sealed with respect to the inside of the container 1 so that the product in the container 1 cannot enter the clearance 124.
  • the tolerance 124 between the first sealing ring 121 and the second sealing ring 122 plays a role of measurement, namely
  • the volume of the tolerance 124 is the volume of the product dispensed from the container 1 each time, so that the amount of the product dispensed each time is constant.
  • the plunger rod 123 communicates with the outside through the gap between the second seal ring 122 and the columnar wall of the device main body 110.
  • the tolerance gap 124 In this way, while the product flows out of the tolerance gap 124, external air enters the tolerance gap 124 through the gap, and in the state shown in FIG. 1a, the product in the container 1 flows into the tolerance gap 124, and the tolerance gap 124 The air is replaced into container 1. In this way, the internal and external pressures of the container 1 are balanced, and the product in the container 1 is prevented from leaking due to unbalanced pressure.
  • Figures 6a and 6b show a feeding device 200 according to a second embodiment of the invention.
  • the feature parts that are the same as or corresponding to the first embodiment are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from the first embodiment, and does not describe the same features in detail. . Unless there is a description to the contrary, the features described in the first embodiment are also applicable to the second embodiment.
  • the feeding device 200 installed on the container 1 includes a device main body 210 in which a chamber is formed in which a plunger 220 is accommodated, and the dispensing cap 250 is connected by means such as threaded connection. It is mounted on the device main body 210, and a plunger connecting rod 251 extending from the bottom of the dispensing cover 250 is formed.
  • the plunger 220 is connected to the plunger connecting rod 251 through its plunger rod 223 so as to be relatively movable.
  • the spring 240 is supported between the plunger 220 and the dispenser 250.
  • a cavity is formed in the plunger rod 223, and the plunger connecting rod 251 can be fitted into the cavity but is not fixed, so that the plunger rod 223 can be relative to the plunger connecting rod 251 movement.
  • the upper end of the spring 240 abuts against the lower end of the plunger rod 223, and the lower end of the spring 240 abuts against the bottom surface of the distribution cover 250.
  • the container 1 is made of a flexible material.
  • the container 1 can be pinched along the arrow D1 in FIG. 6a, so that the product in the container 1 flows into the first sealing ring of the plunger 220 through the feed port 212
  • the plunger 220 can move downwards under pressure against the elastic force of the spring 240.
  • the second sealing ring 222 moves to the large diameter part of the cavity, the product in the tolerance 224 flows into the distribution cover 250 and flows out through the channel 252.
  • the second sealing ring 221 seals the tolerance 224 with respect to the inlet 212, so that the product in the container 1 cannot flow out further, thereby ensuring that the set amount of product is dispensed.
  • the dispensing of the product is realized by pressing the container 1 and therefore the pressing cover in the first embodiment can be omitted.
  • Figures 7a and 7b show a feeding device 300 of a third embodiment of the invention.
  • the feature parts that are the same as or corresponding to the first and second embodiments are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from the first and second embodiments. The characteristics will be described in detail. Unless described to the contrary, the features described in the first and second embodiments are also applicable to the third embodiment.
  • a hole is formed on the top wall of the device main body 310.
  • the plunger 320 includes a spring support rod 324, which passes through a hole on the top wall of the device main body 310 and extends into the container 1.
  • the spring support rod 324 is substantially T-shaped, and its top end is a flange with a larger diameter.
  • the spring 340 is arranged around the spring support rod, one end of which is supported on the flange 325, and the other end is supported on the device main body 310. Outside the top wall.
  • a feeding port 312 is provided on the columnar wall of the device body 310, but also a feeding port 312 is also provided on the top wall of the device body 310.
  • the cavity 311 of the device main body 310 has a constant longitudinal diameter. In the state of the stroke bottom dead center of the plunger 320 shown in FIG. 7b, the first sealing ring 321 is still in the cavity, and the second sealing ring 322 moves out of the cavity, thereby allowing the first sealing ring The product in the tolerance between the ring 321 and the second sealing ring 322 is distributed outside the feeding device 300.
  • a protective cover 330 can be provided on the main body 310 of the feeding device 300.
  • Figures 8a and 8b show a feeding device 400 of a fourth embodiment of the invention.
  • the features that are the same as or corresponding to the first to third embodiments are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from the first to third embodiments. The characteristics will be described in detail. Unless described to the contrary, the features described in the first to third embodiments are also applicable to the fourth embodiment.
  • the structure of the feeding device 400 of the fourth embodiment is basically the same as the structure of the feeding device 300 of the third embodiment.
  • the chamber 411 of the device main body 410 of the feeding device 400 includes a large diameter part and a small diameter part as in the first and second embodiments, and the diameter of the first sealing ring 421 is smaller than that of the second sealing ring 422. diameter.
  • the plunger 420 when the plunger 420 is at the top dead center position of its stroke, its first sealing ring 421 is located in the small diameter part and is in interference fit with the cylindrical wall at the small diameter part, and the second sealing ring 422 is located in the large-diameter part and is in interference fit with the cylindrical wall at the large-diameter part.
  • the plunger 420 When operating the feeding device 400, for example, by pressing the container 1, the plunger 420 is moved downward under pressure. When the plunger 420 moves to the bottom dead center of its stroke as shown in Figure 8b, the plunger 420 The second sealing ring 422 moves out of the chamber 411 so that the product contained between the first sealing ring 421 and the second sealing ring 422 can be dispensed. At this time, the first sealing ring 421 is still sealed in the small diameter portion of the cavity 411 and seals the discharge port 412 of the device main body 410.
  • the feeding device 400 of the fourth embodiment may also be provided with a protective cover as in the third embodiment.
  • Figures 9a and 9b show a feeding device 500 of a fifth embodiment of the invention.
  • the features that are the same as or corresponding to the first to fourth embodiments are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from the first to fourth embodiments. The characteristics will be described in detail. Unless described to the contrary, the features described in the first to fourth embodiments are also applicable to the fifth embodiment.
  • the feeding device 500 includes a device main body 510, a plunger 520, a stretch cover 530, and a dispensing cover 550.
  • the feeding device 500 further includes a spring 540, which acts on the plunger 520, and the spring 540 enables the plunger 520 to return to its original position after movement. As shown in FIGS. 9a and 9b, one end of the spring 540 abuts on the plunger 520, and the other end abuts on the distribution cover 550. In this way, the state where the plunger 520 is at the top dead center of the stroke shown in FIG. 9 a is the standby state of the feeding device 500.
  • the stretch cover 530 When the feeding device 500 is operated, the stretch cover 530 is pulled in the direction of the arrow D2, thereby driving the plunger 520 to move downwards to the position shown in FIG. 9b. During this process, the spring 540 is compressed, so that when the tension applied to the tension cover 530 is released, the spring force of the compressed spring 540 causes the plunger 520 to return to the top dead center of its stroke.
  • Figures 10a and 10b show a feeding device 600 of a sixth embodiment of the invention.
  • the features that are the same as or corresponding to the first to fifth embodiments are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from the first to fifth embodiments, and the same The characteristics will be described in detail. Unless described to the contrary, the features described in the first to fifth embodiments are also applicable to the sixth embodiment.
  • the structure of the feeding device 600 is basically the same as the structure of the feeding device 300, including the device body 610 and the plunger 620, and a protective cover can be provided on the device body 610 of the feeding device 600 630.
  • the plunger 620 includes a first plunger portion 621 and a second plunger portion 622.
  • the first plunger portion 621 and the second plunger portion 622 are relatively movably connected to each other. together.
  • a first seal ring 623 is formed on the first plunger portion 621, and a second seal ring 624 is formed on the second plunger portion 622.
  • a front view of the second plunger portion 622 is shown.
  • the second plunger portion 622 is formed with an external threaded connecting portion 625 in the shape of a threaded convex bar on the plunger rod portion, and formed on the plunger rod portion of the first plunger portion 621
  • the plunger 620 of the plunger 620 is connected to the protective cover 630 and is fixed in position relative to the protective cover 630. In this way, when a user rotates the protective cover 630, the second plunger portion 622 can be rotated relative to the first plunger portion 621, thereby adjusting the distance between the first sealing ring 623 and the second sealing ring 624.
  • first plunger part 621 and the second plunger part 622 In addition to the internal and external threaded connection parts, other structures can also be adopted to realize the relative movement between the first plunger part 621 and the second plunger part 622.
  • a plurality of outer convex rings may be formed on one of the first plunger part 621 and the second plunger part 622, and a plurality of inner concave rings may be formed on the other.
  • Figures 12a-16b show a feeding device 700 according to a seventh embodiment of the present invention.
  • the features that are the same as or corresponding to the first to sixth embodiments are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from those of the first to sixth embodiments, and the same The characteristics will be described in detail. Unless there is a description to the contrary, the features described in the first to sixth embodiments are also applicable to the seventh embodiment.
  • the feeding device 700 includes a device body 710, a plunger 720 accommodated in a cavity of the device body 710, and an elastic reset mechanism 740.
  • the elastic reset mechanism 740 includes at least one, preferably a plurality of elastic strips 741.
  • a guide portion 712 is also formed on the top wall of the device body 710, and the guide portion 712 supports and guides one end of the elastic reset mechanism 740 to move between the unloaded position and the preloaded position.
  • a spiral protrusion 723 is formed on one end of the plunger 720.
  • a ring 742 is provided on one end of the elastic reset mechanism 740, and the elastic strips 741 are connected together by the ring 742.
  • a spiral groove 743 is formed on the inner surface of the ring 742, and the spiral groove 743 can be matched with the spiral protrusion 723.
  • the spiral protrusion 723 on the plunger 720 interacts with the spiral groove 743 on the elastic reset mechanism 740, so that the elastic reset mechanism 740 is provided with a ring 742
  • One end can move along the longitudinal direction of the plunger 720, so that the elastic reset mechanism 740 is switched between the unloaded state and the preloaded state.
  • plastic can be used to make the elastic reset mechanism 740.
  • the elastic reset mechanism 740 In the standby state, the elastic reset mechanism 740 can be in an unloaded state, thereby preventing the elastic reset mechanism 740 from being in a loaded state for a long time.
  • the yield deformation increases its service life.
  • the plunger 720 is formed by connecting two parts to each other.
  • the plunger 720 may also be formed in one piece like the plunger 120 in the first embodiment.
  • the structure of the spiral protrusion 723 on the plunger 720 and the structure of the spiral groove 743 on the elastic reset mechanism 740 are also interchangeable, that is, a spiral groove is formed on the plunger 720, and the elastic reset mechanism 740 is formed with spiral ridges. This is also within the scope of the present invention.
  • FIGS 17a-19 show a feeding device 800 of an eighth embodiment of the present invention.
  • the features that are the same as or corresponding to the first to seventh embodiments are denoted by the same or similar reference numerals, and the following disclosure mainly describes features that are different from the first to seventh embodiments. The characteristics will be described in detail. Unless otherwise stated, the features described in the first to seventh embodiments are also applicable to the eighth embodiment.
  • the feeding device 800 includes a device body 810, a plunger 820 provided in the device body 810, and a medicine cup 830.
  • the medicine cup 830 is detachably connected to the device body 810 and the plunger 820.
  • an external thread 811 is provided on the outer surface of the device body 810, and an internal thread 831 is formed on the inner surface of the medicine cup 830.
  • the medicine cup 830 is detachably coupled to the device body 810.
  • a plunger connecting portion 832 is formed in the medicine cup 830, which is detachably connected with the plunger rod of the plunger 820, for example, the detachable connection is realized by a male ring-female ring fitting.
  • the tolerance between the two sealing rings of the plunger 820 communicates with the inside of the container 1, so that the pills in the container 1 can enter the tolerance.
  • the medicine cup 830 is rotated relative to the device body 810 to separate the medicine cup 830 from the device body 810.
  • the tolerance in the plunger 820 is sealed from the inside of the container 1, and communicates with the outside of the cavity of the device body 810 , Making the pills in the tolerance fall into the medicine cup 830.
  • the medicine cup 830 is further pulled down to separate the medicine cup 830 from the plunger rod of the plunger 820. Then, the user can take the pills in the medicine cup 830.
  • the user can cover the medicine cup 830 back to the device body 810.
  • the medicine cup 830 is connected to the device body 810 again, and is connected to the plunger rod of the plunger 820.
  • the plunger 820 can be returned to the position shown in FIG. 17a where the tolerance is communicated with the inside of the container 1.
  • the feeding device is provided with elastic resetting devices, such as springs, elastic strips, etc., and provided with actuation devices such as pressing covers and stretching covers, so that The plunger starts to move from its initial position and returns to the initial position.
  • the actuation structure is optional, and the plunger can be reciprocated through an electric drive.
  • a simple electronic control device such as a single-chip microcomputer can be installed in the feeding device to control the reciprocating movement of the plunger.
  • the feeding device of the present invention can be used to dispense liquid, semi-liquid, and other fluid products.
  • the product with fluidity can also be doped with solid particles, and the present invention is particularly advantageous in the application of distributing doped solid particles. It can basically avoid the solid particles often faced by existing dispensing devices. The problem of blockage and damage.
  • the present invention is also applicable to completely solid granular products, such as pills and the like.
  • the specific application of the dispensing device 800 for dispensing pills is shown in FIGS. 17a-19.

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Abstract

一种给料装置可用于从容器分配产品，包括：装置主体，装置主体包括柱状壁，柱状壁形成腔体，并包括进料口和出料口，当给料装置安装到容器上时，给料口与容器的内部连通，在腔体中设置有密封构件，密封构件中包括容隙，且能够在腔体中在第一位置和第二位置之间往复运动，在第一位置中，容隙与给料口相连通，且相对于腔体的出料口密封，在第二位置中，容隙与腔体的出料口连通，且相对于进料口密封。该给料装置结构简单，被堵塞的风险小，且可减少泄漏。

Description

一种给料装置 技术领域
本发明涉及一种用于从容器向外分配产品的给料装置，该给料装置能够定量地分配产品。
背景技术
在诸如香熏机、洗手器、液体蚊香机等日用产品中，通常需要设置给料装置，用于将容器中的相应产品分配出来。并且，在此类应用场合中，经常需要给料装置能够具有定量给料的功能。
通常，此类给料装置设置有单向阀，该单向阀使得能够从容器中分配出产品，同时又能防止产品倒流回到容器中。进一步地，在某些情况下，还能通过该单向阀对所分配出的产品进行定量。
不过，对于上述现有的给料装置来说，其在应用中常常表现出一些问题。例如，在某些情况下，容器中的产品会带有固体颗粒物，这样，经过一段时间的使用之后，单向阀有可能被其中的固体颗粒物堵塞，无法继续正常使用，并且，现有给料装置中的单向阀的定量有时也不准确。而且，现有的给料装置中，容器内外的气压有时无法有效地平衡，有可能导致泄漏。而为了能够实现气压平衡，需要在给料装置中设置平衡孔，增加了该装置结构的复杂程度。
此外，在以上所提到的应用场合中，容器常常是倒置地使用的，此时也会导致单向阀无法正常使用。
因此，需要一种改进结构的给料装置，其能够以简单的结构实现对内外气压的平衡，并且性能稳定，运行可靠等。
发明内容
本发明通过一种新颖的给料装置结构，解决至少一个以上所述的现有技术的给料装置中所存在的问题。
本发明的目的是提供一种给料装置，该给料装置结构简单，可减少或避免处料通道被堵塞的风险，并且运行可靠。
本发明的给料装置可用于从容器分配产品，包括：装置主体，装置主体包括柱状壁，柱状壁形成腔体，并包括进料口和出料口，当给料装置安装到容器上时，给料口与容器的内部连通，在腔体中设置有密封构件，密封构件中包括容隙，且能够在腔体中在第一位置和第二位置之间往复运动，在第一位置中，容隙与给料口相连通，且相对于腔体的出料口密封，在第二位置中，容隙与腔体的出料口连通，且相对于进料口密封。对于具有上述结构的给料装置来说，在待用状态下，密封构件既可以是位于上述第一位置处，也可以是位于上述第二位置处，这都包括在本发明的范围之内。
对于上述结构的给料装置，其结构简单，通过可往复运动的密封构件，使得密封构件中的容隙交替地与容器内部和腔体外部连通，从而实现对容器内产品的分配，而被产品堵塞的风险小。而且，在将产品分配出来的同时，同样体积的外部的空气可占据容隙的容积，并最终进入到容器中，从而实现容器内外的压力平衡，进一步地避免产品从容器的泄漏。
具体地，密封构件为柱塞，柱塞包括柱塞杆和形成在柱塞杆上的第一密封环和第二密封环，第一密封环与第二密封环间隔开，从而在第一密封环和第二密封环之间形成容隙。
较佳地，柱塞包括第一柱塞部分和第二柱塞部分，第一密封环形成在第一柱塞部分上，第二密封环形成在第二柱塞部分上，其中，第一柱塞部分和第二柱塞部分能够彼此相对运动，从而调节第一密封环和第二密封环之间的距离。
这样，通过调节第一密封环和第二密封环之间的距离，调节形成在第一密封环和第二密封环之间的容隙的容积。由此，可根据需要来设定所要分配的产品量。
进一步地，第一柱塞部分和第二柱塞部分可通过螺纹结构而互相连接。
在一种具体结构中，腔体包括小直径部分和大直径部分，在第一位置中，第一密封环和第二密封环在小直径部分处与柱状壁干涉配合，在第二位置中，第一密封环仍处于小直径部分，并保持与柱状壁的干涉配合，而第二密封环进入到大直径部分中，并在第二密封环和柱状壁之间形成空隙。
或者在另一种结构中，在第一位置中，第一密封环和第二密封环与柱状壁干涉配合，在第二位置中，第一密封环保持与柱状壁的干涉配合，而第二密 封环运动到腔体之外。
在又一种结构中，腔体包括小直径部分和大直径部分，且第一密封环的直径小于第二密封环的直径，其中，在第一位置中，第一密封环在小直径部分处与柱状壁干涉配合，第二密封环在大直径部分处与柱状壁干涉配合，在第二位置中，第一密封环仍处于小直径部分，并保持与柱状壁的干涉配合，而第二密封环运动到腔体之外。
较佳地，给料装置还包括弹性复位机构，弹性复位机构一端直接或间接地抵接在密封构件上，另一端直接或间接地抵接在装置本体上。
进一步地，给料装置包括致动构件，密封构件连接在致动构件上，致动构件能够相对于装置本体运动，从而带动密封构件在第一位置和第二位置之间运动。
在一种结构中，致动构件为按压盖，弹簧的一端抵接在按压盖上，弹簧的另一端抵接在装置本体上。在此结构中，在待用状态下，密封构件处于第二位置，其容隙与出料口连通，在开始使用时，通过对按压盖的按压而使密封构件克服弹簧弹力运动到第一位置，从而使容隙与进料口连通。
在另一种结构中，给料装置还包括固定地安装在装置主体的出料口处的分配盖，分配盖上设有分配口，其中，致动构件为拉伸盖，弹簧的一端抵接在密封构件上，弹簧的另一端抵接在分配盖上。在此结构中，在待用状态下，密封构件处于第一位置，其容隙与进料口连通，在开始使用时，通过对拉伸盖施加拉力，使密封构件克服弹簧弹力运动到第二位置，从而使容隙与出料口连通。
在又一种结构中，密封构件包括弹簧支承杆，在安装好的状态下，弹簧支承杆穿过装置主体的顶壁上的孔而伸入到容器中，在弹簧支承杆伸入容器中的一端形成有凸缘部，弹性复位机构的一端抵接在凸缘部上，另一端抵接在顶壁的外表面上。
较佳地，弹性复位机构包括至少一根弹性条，弹性条的一端直接或间接地抵接在可往复运动的密封构件上，且弹性条的另一端直接或间接地抵接在装置主体上，并且其中：弹性复位机构能够相对于密封构件旋转，在弹性复位机构与密封构件之间设置有预加载结构，通过弹性复位机构相对于密封构件的旋转，弹性条在未加载状态和预加载状态之间切换；或者弹性复位机构能够相对 于装置主体旋转，在弹性复位机构与装置之间设置有预加载结构，通过弹性复位机构相对于装置主体的旋转，弹性条在未加载状态和预加载状态之间切换。
这种结构对于弹性条由塑料制成的弹性复位机构来说尤其有用，通过其中的预加载结构，可使其弹性条在待用状态下处于未加载状态，从而避免该弹性条因长期处于加载状态而屈服变形，延长装置的使用寿命。
较佳地，预加载结构包括：设置在弹性复位机构和密封构件中的一个上的螺旋槽，以及设置在弹性复位机构和密封构件中的另一个上的螺旋凸条；或者预加载结构包括：设置在弹性复位机构和装置主体中的一个上的螺旋槽，以及设置在弹性复位机构和装置主体中的另一个上的螺旋凸条。
附图说明
附图中示出了本发明的较佳实施方式的结构，其中：
图1a示出了本发明的第一实施例的了给料装置的剖视图，其中该给料装置安装在容器上。
图1b示出了图1a所示给料装置的另一状态的剖视图。
图2a示出了图1a的给料装置上的装置主体的剖视图。
图2b示出了图2a的给料装置的立体图。
图3a示出了图1a的给料装置上的柱塞的剖视图。
图3b示出了图3a的柱塞的立体图。
图4a示出了图1a的给料装置上的按压盖的剖视图。
图4b示出了图4a的按压盖的立体图。
图5a示出了图1a的给料装置上的分配盖的剖视图。
图5b示出了图5a的分配盖的立体图。
图5c示出了图5a的分配盖的仰视图。
图6a示出了本发明的第二实施例的给料装置的剖视图，其中该给料装置安装在容器上。
图6b示出了图6a的给料装置的另一状态的剖视图。
图7a示出了本发明的第三实施例的给料装置的剖视图，其中该给料装置安装在容器上。
图7b示出了图7a的给料装置的另一状态的剖视图。
图8a示出了本发明的第四实施例的给料装置的剖视图，其中该给料装置安装在容器上。
图8b示出了图8a的给料装置的另一状态的剖视图。
图9a示出了本发明的第五实施例的给料装置的剖视图，其中该给料装置安装在容器上。
图9b示出了图9a的给料装置的另一状态的剖视图。
图10a示出了本发明的第六实施例的给料装置的剖视图，其中该给料装置安装在容器上。
图10b示出了图10a的给料装置的另一状态的剖视图。
图11示出了图10a和10b中的柱塞的第二柱塞部分的正视图。
图12a示出了本发明的第七实施例的给料装置的剖视图，其中该给料装置的弹性复位机构处于未加载状态。
图12b示出了图12a中的给料装置的另一剖视图，其中该给料装置的弹性复位机构处于预加载状态。
图12c示出了图12a中的给料装置的又一剖视图，其中该给料装置的弹性复位机构处于受压状态。
图13示出了图12a的给料装置的立体图。
图14a示出了图12a的给料装置的柱塞的正视图。
图14b示出了图14a所示的柱塞的立体图。
图15a示出了图12a的给料装置的弹性复位机构的剖视图。
图15b示出了图15a的弹性复位机构的立体图。
图16a示出了图12a的给料装置的装置本体的正视图。
图16b示出了图16a的装置本体的立体图。
图17a示出了本发明的第八实施例的给料装置的剖视图，其中该给料装置安装在容器上。
图17b示出了图17a中的给料装置的另一剖视图。
图18示出了图17a中的给料装置的装置本体的正视图。
图19示出了图17a中的给料装置的药杯的立体图。
具体实施方式
以下结合附图对本发明的具体实施方式进行详细说明。应当了解，附图中所示的仅仅是本发明的较佳实施例，其并不构成对本发明的范围的限制。本领域的技术人员可以在附图所示的实施例的基础上对本发明进行各种显而易见的修改、变型、等效替换，并且，在不冲突或者没有特别说明的情况下，不同的实施例中的技术特征可以进行互相组合，这些都落在本发明的保护范围之内。
<第一实施例>
图1a～5b示出了本发明的第一实施例的给料装置100。如图1a和1b所示，在容器1的出口处安装有给料装置100，该给料装置100包括装置主体110和设置在装置主体110中的柱塞120。在装置主体110上还设置有诸如按压盖130、分配盖150之类的部件，并且在按压盖130和装置主体110之间还设置有弹性复位装置、比如弹簧140，用于在按压按压盖130之后使按压盖130复位。以下对给料装置100的各部件的结构进行详细说明。
装置主体
图2a和2b示出了装置主体110的结构，其中图2a是装置主体110的剖视图，图2b是装置主体110的立体图。如图所示，装置主体110的柱状壁中形成有腔室111，在该柱状壁上还形成有至少一个、较佳地为如图2a中所示的两个进料口112，腔室111通过该进料口112与容器1的内部相连通，从而使得容纳在容器1中的流动性产品能够流入到装置主体110的腔室111中。柱状壁的一端为闭合端，与该闭合端相对的另一端为开放端，形成腔室111的出料口114。
在图2a所示的结构中，腔室111包括在进料口112附近的小直径部分以及在出料口114附近的大直径部分。这样的大、小直径结构可与将在下面描述的柱塞120的结构相配合并互相协作，实现对容器1内的产品的定量分配。
如图2a和2b所示，在装置主体110的柱状壁的外周还设置有弹簧容纳槽113，上述弹簧140的一端可支承在该弹簧容纳槽113内。弹簧140的另一端 则支承在按压盖130上。这样，当向着容器1的方向对按压盖130进行按压时，弹簧140被压缩，而当撤去按压力之后弹簧140可使按压盖130复位。
当然，对于本领域技术人员可知的是，弹簧容纳槽113的结构是可选的。换言之，装置主体110可不包括弹簧容纳槽113，此时，弹簧140可支承在
柱塞
图3a和3b示出了柱塞120的结构，其中图3a是柱塞120的剖视图，图3b是柱塞120的立体图。
如图所示，柱塞120包括柱塞杆123，在柱塞杆123上形成有互相间隔开的第一密封环121和第二密封环122。在第一密封环121和第二密封环122之间形成能够容纳来自容器1的产品的容隙124。
在柱塞杆123的一端上形成有凸环125，该凸环125可用于将柱塞120连接到按压盖130或分配盖150上，如将在以下详细描述的。
按压盖
图4a和4b示出了按压盖130的结构，其中图4a示出了按压盖130的剖视图，图4b示出了按压盖130的立体图。
如图4a所示，按压盖130内包括柱塞连接杆131，该柱塞连接杆131从按压盖130的底部延伸出来。在柱塞连接杆131的远离按压盖130的底部的一端上形成有凹穴133，该凹穴133用于接纳柱塞杆123以上所述的形成有凸环125的一端。进一步地，在该凹穴133中可形成有凹环，用于与柱塞杆123上的凸环125相配合。或者，也可通过其它方式将柱塞连接杆131与柱塞杆123连接在一起，例如可将柱塞杆123的外径设置成略大于柱塞连接杆131的凹穴133的内径，从而使它们互相干涉配合，或者可通过焊接、熔接、螺纹连接等方式将它们连接在一起。
在按压盖130的底部上还形成有通孔132，来自容器1的产品可最终经由该通孔132被分配出来。
分配盖
图5a～5c示出了分配盖150的结构，其中图5a示出了分配盖150的剖视图，图5b示出了分配盖150的立体图，而图5c则示出了分配盖150的仰视图。
分配盖150可通过螺纹连接等方式连接到装置主体110上。如图所示， 分配盖150包括分配口151，来自容器1的产品可经由该分配口151分配出来。该分配口151可进入并穿过上述按压盖130上的通孔132中。在分配盖150中还形成有通道152，按压盖130的柱塞连接杆131可穿过该通道152而与柱塞120的柱塞杆123相连接，具体可见图1a和1b。
操作原理
返回图1a和1b，以下将描述第一实施例的给料装置100的操作原理。
当使用人需要将设定量的产品从容器1中分配出来时，首先按压按压盖130，使得与按压盖130的柱塞连接杆131相连接的柱塞120在装置主体110的腔室111内运动到其行程的上止点处，如图1a所示。此时，柱塞120的第一密封环121和第二密封环122之间的容隙124与形成在装置主体110柱状壁上的进料口112相连通，进而与容器1的内部相连通。这样，容器1中的产品可进入到容隙124中。与此同时，第一密封环121和第二密封环122都位于腔室111的小直径部分中，与柱状壁干涉配合以形成密封，从而流入第一密封环121和第二密封环122之间的容隙124中的产品不会进一步向下流动。
接着，使用人撤去施加在按压盖130上的按压力，分配盖150在弹簧140的弹性力的作用下向下运动，回到其初始的未受力状态，如图1b所示。与按压盖130的柱塞连接杆131相连接的柱塞120也随之一起向下运动。在此过程中，第二密封环122运动到腔室111的大直径部分中，与装置主体110的柱状壁脱开接触，即，在第二密封环122和装置主体110的柱状壁之间形成空隙。容纳在第一密封环121和第二密封环122之间的产品经由该空隙流入到分配盖150中，并经由分配盖150的分配口151流到外部。
此时，如图1b中所示的，第一密封环121仍在腔室111的小直径部分中，并且位于进料口112的下方，因此使第一密封环121和第二密封环122之间的容隙124相对于容器1的内部而密封，从而容器1中的产品不能进入到容隙124中。
从以上对给料装置100的操作原理的公开内容中可以看到，在该给料装置100中，第一密封环121和第二密封环122之间的容隙124起到了计量的作用，即，该容隙124的容积即为每次从容器1中分配出的产品的体积，从而每次分配出的产品的量恒定。
而且，在图1b所示的状态中，该柱塞杆123通过第二密封环122与装置主体110的柱状壁之间的空隙而与外部连通。这样，在产品从容隙124流出的同时，外部空气通过该空隙进入到容隙124中，而在图1a所示的状态中，容器1中的产品流入到容隙124中，而容隙124中的空气则被置换到容器1中。由此，实现了容器1的内外压力的平衡，进而避免容器1中的产品因压力不平衡而泄漏。
<第二实施例>
图6a和6b示出了本发明的第二实施例的给料装置200。其中，与第一实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一实施例中描述的特征同样适用于第二实施例。
如图6a所示，安装在容器1上的给料装置200包括装置主体210，在装置主体210中形成有腔室，该腔室中容纳有柱塞220，分配盖250通过诸如螺纹连接等方式安装在装置主体210上，并且分配盖250中形成有从其底部延伸的柱塞连接杆251。柱塞220通过其柱塞杆223可相对运动地连接在柱塞连接杆251上。弹簧240支承在柱塞220和分配该250之间。在图6a所示的具体结构中，柱塞杆223中形成有空腔，柱塞连接杆251可配合到该空腔中但并不固定，从而柱塞杆223能够相对于柱塞连接杆251运动。而且，弹簧240的上端与柱塞杆223的下端相抵接，而弹簧240的下端则抵接在分配盖250的底面上。
在第二实施例中，容器1由柔性材料制成，可沿图6a中的箭头D1按捏该容器1，使得容器1中的产品经由进料口212流入到柱塞220的第一密封环221和第二密封环222之间的容隙224中，并且，进一步按捏容器1，可使柱塞220在压力作用下克服弹簧240的弹力向下运动。当第二密封环222运动到腔体的大直径部分时，容隙224中的产品流入到分配盖250，并经由通道252流出。并且，此时第二密封环221使容隙224相对于进料口212密封，使得容器1中的产品无法进一步流出，从而确保设定量的产品被分配出来。
当使用人撤去施加在容器1上的按捏力，柱塞220在弹簧240的弹力作 用下恢复到图6a所示的初始状态，以待下一次分配。
可以看到，在第二实施例中，通过对容器1的按捏来实现产品的分配，因此可省略第一实施例中的按压盖。
<第三实施例>
图7a和7b示出了本发明的第三实施例的给料装置300。其中，与第一和第二实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一和第二实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一和第二实施例中描述的特征同样适用于第三实施例。
如图所示，在第三实施例的给料装置300中，装置主体310的顶壁上形成有孔。柱塞320包括弹簧支承杆324，该弹簧支承杆324穿过装置主体310的顶壁上的孔而伸入到容器1之内。该弹簧支承杆324呈大致T形，其顶端为直径较大的凸缘部，弹簧340围绕着该弹簧支承杆设置，其一端支承在该凸缘部325上，另一端支承在装置主体310的顶壁外侧。
此外，如图所示，在第三实施例的给料装置300中，不但在装置主体310的柱状壁上设置进料口312，在装置主体310的顶壁上也同样设置有进料口312。进一步地，在给料装置300中，装置主体310的腔体311沿其纵向直径不变。在图7b所示的柱塞320的行程下止点的状态中，第一密封环321仍在腔体中，而第二密封环322则运动到该腔体之外，从而允许将第一密封环321和第二密封环322之间的容隙中的产品分配到给料装置300之外。
如图7a所示，当柱塞320处于其行程的上止点时，给料装置300处于待用状态，此时，可在给料装置300的装置主体310上设置保护盖330。
<第四实施例>
图8a和8b示出了本发明的第四实施例的给料装置400。其中，与第一～第三实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一～第三实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一～第三实施例中描述的特征同样适用于 第四实施例。
可以看到，第四实施例的给料装置400的结构与第三实施例的给料装置300的结构基本相同。不同的是，给料装置400的装置主体410的腔室411如第一和第二实施例那样包括大直径部分和小直径部分，并且，第一密封环421的直径小于第二密封环422的直径。如图8a所示，当柱塞420处于其行程的上止点位置时，其第一密封环421位于小直径部分内，并与该小直径部分处的柱状壁干涉配合，而第二密封环422位于大直径部分内，并与该大直径部分处的柱状壁干涉配合。
在操作给料装置400时，例如通过按捏容器1，使柱塞420在压力作用下向下运动，当柱塞420运动到如图8b所示的其行程下止点时，柱塞420的第二密封环422运动到腔室411之外，从而被容纳在第一密封环421和第二密封环422之间的产品可被分配出来。而此时，第一密封环421仍然密封在腔室411的小直径部分内，并密封住装置主体410的出料口412。
该第四实施例的给料装置400也可以如第三实施例中那样设置有保护盖。
<第五实施例>
图9a和9b示出了本发明的第五实施例的给料装置500。其中，与第一～第四实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一～第四实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一～第四实施例中描述的特征同样适用于第五实施例。
给料装置500包括装置主体510、柱塞520、拉伸盖530和分配盖550。并且，给料装置500还包括弹簧540，该弹簧540作用在柱塞520上，该弹簧540使得柱塞520在运动之后能够恢复到其初始位置。如图9a和9b所示弹簧540的一端抵接在柱塞520上，另一端抵接在分配盖550上。这样，在图9a所示的柱塞520处于行程上止点的状态为给料装置500的待用状态。当对给料装置500进行操作时，沿箭头D2的方向拉动拉伸盖530，进而带动柱塞520向下运动，直至图9b所示的位置。在此过程中，弹簧540被压缩，从而当释放施加在拉伸盖530上的拉力时，被压缩的弹簧540的弹簧力使柱塞520返回 到其行程上止点处。
<第六实施例>
图10a和10b示出了本发明的第六实施例的给料装置600。其中，与第一～第五实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一～第五实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一～第五实施例中描述的特征同样适用于第六实施例。
从图10a和10b可以看到，给料装置600的结构与给料装置300的结构基本相同，也包括装置主体610和柱塞620，并且在给料装置600的装置主体610上可设置保护盖630。
在第六实施例的给料装置600中，柱塞620包括第一柱塞部分621和第二柱塞部分622，第一柱塞部分621与第二柱塞部分622可相对运动地互相连接在一起。在第一柱塞部分621上形成有第一密封环623，在第二柱塞部分622上形成有第二密封环624。
进一步参考图11，其中示出了第二柱塞部分622的正视图。从图11中可以看到，在第二柱塞部分622的柱塞杆部分上形成有呈螺纹凸条状的外螺纹连接部625，而在第一柱塞部分621的柱塞杆部分上形成有呈螺纹凹槽状的内螺纹连接部626。这样，通过彼此相对地旋转第一柱塞部分621和第二柱塞部分622，可调节第一密封环623和第二密封环624之间的距离，进而调节形成在第一密封环623和第二密封环624之间的容隙的容积。
在图10a所示的结构中，在待用状态下，柱塞620的柱塞620连接在保护盖630上，并且相对于该保护盖630位置固定。这样，当使用人旋转保护盖630时，可使第二柱塞部分622随之相对于第一柱塞部分621旋转，从而调节第一密封环623和第二密封环624之间的距离。
除了内、外螺纹连接部之外，还可采取其它结构来实现第一柱塞部分621和第二柱塞部分622之间的相对运动。例如，可在第一柱塞部分621和第二柱塞部分622中的一个上形成多个外凸环，在另一个上形成多个内凹环，通过使不同的凹环和凸环之间的配合，来实现对第一柱塞部分621和第二柱塞部分 622之间的相对位置的调节。
<第七实施例>
图12a～16b示出了本发明的第七实施例的给料装置700。其中，与第一～第六实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一～第六实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一～第六实施例中描述的特征同样适用于第七实施例。
图12a～12c中示出了安装在容器1上的给料装置700处于不同状态下的截面图，图13则示出了给料装置700的立体图。如图所示，给料装置700包括装置本体710、容纳在装置本体710的腔体中的柱塞720以及弹性复位机构740。其中，弹性复位机构740包括至少一个、较佳地为多个的弹性条741。在装置本体710的顶壁上还形成有引导部712，该引导部712支承并引导弹性复位机构740的一端在未加载位置和预加载位置之间运动。
具体地，如图14a和14b所示，柱塞720的一端上形成有螺旋状凸条723。如图15a和15b所示，弹性复位机构740的一端上设置有环形件742，各弹性条741通过该环形件742连接在一起。在该环形件742的内表面上形成有螺旋状凹槽743，该螺旋状凹槽743可与螺旋状凸条723相配合。当相对于弹性复位机构740旋转柱塞720时，柱塞720上的螺旋状凸条723与弹性复位机构740上的螺旋状凹槽743相互作用，使得弹性复位机构740的设有环形件742的一端能够沿着柱塞720的纵向运动，从而使得弹性复位机构740在未加载状态和预加载状态之间切换。
这样，在第七实施例的结构中，可以采用塑料来制造弹性复位机构740，在待用状态下，可使弹性复位机构740处于未加载状态，由此避免弹性复位机构740因长期处于加载状态而屈服变形，提高其使用寿命。
在图12a～12c中所示的结构中，柱塞720由两个部分互相连接而形成。不过，柱塞720也可如第一实施例中的柱塞120那样形成为一件式的。
此外，柱塞720上的螺旋状凸条723的结构与弹性复位机构740上的螺旋状凹槽743的结构也可互换，即，在柱塞720上形成螺旋状凹槽，在弹性复 位机构740上形成螺旋状凸条。这同样在本发明的范围之内。
<第八实施例>
图17a～19示出了本发明的第八实施例的给料装置800。其中，与第一～第七实施例相同或对应的特征部分用相同或类似的附图标记来表示，并且以下的公开内容中主要描述与第一～第七实施例不同的特征，而不对相同的特征再作详细描述。除非有相反的描述，第一～第七实施例中描述的特征同样适用于第八实施例。
其中，给料装置800包括装置本体810、设置在装置本体810中的柱塞820以及药杯830。该药杯830可分离地连接于装置本体810和柱塞820。
具体来说，如图所示，在装置本体810的外表面上设置有外螺纹811，在药杯830的内表面上形成有内螺纹831，通过外螺纹811和内螺纹831之间的配合，将药杯830可拆卸地联接到装置本体810上。
进一步地，在药杯830中形成有柱塞连接部832，其可分离地与柱塞820的柱塞杆相连接，例如通过凸环-凹环配合来实现该可分离的连接。在初始状态下，柱塞820的两个密封环之间的容隙与容器1的内部相连通，从而容器1中的药丸可进入到该容隙中。然后，相对于装置本体810旋转药杯830，使药杯830从装置本体810分离，此时柱塞820中的容隙与容器1的内部密封隔开，而与装置本体810的腔体外部连通，使得容隙中的药丸落入到药杯830中。进一步下拉药杯830，使得药杯830与柱塞820的柱塞杆分离。然后，使用人可服用药杯830中的药丸。
此后，使用人可将药杯830盖回到装置本体810上，在此过程中，药杯830再次连接到装置本体810上，并且与柱塞820的柱塞杆相连接。并且，在将药杯830旋上装置本体810的过程中，可使柱塞820回到图17a所示的其容隙与容器1内部相连通的位置。
<其它变形例>
以上对本发明的具体实施方式进行了描述。本领域技术人员知道，可以在这些实施方式的基础上进行一些显而易见的修改，同样包括在本发明的范围 之内。
例如，在以上所描述的具体实施方式中，通过给料装置都设置有弹性复位装置，例如弹簧、弹性条等，并且设置有诸如按压盖、拉伸盖之类的致动装置，从而可以使柱塞从其初始位置开始运动以及回复到初始位置。这样致动结构都是可选的，可以通过电驱动的方式来使柱塞往复运动。进一步地，可在给料装置中设置简单的单片机等电子控制装置，来控制柱塞的往复运动。
此外，通常来说，本发明的给料装置可用于分配液态、半液态等具有流动性的产品。而在该具有流动性的产品中也可掺杂有固态颗粒，并且本发明在分配掺杂有固态颗粒的应用场合中尤其有利，其基本上可避免现有的分配装置常常面临的被固态颗粒所堵塞和损坏的问题。
甚至于，本发明还适用于完全为固态的颗粒产品，例如药丸等。在图17a～19中就示出了分配装置800用于分配药丸的具体应用。
以上对本发明的较佳实施方式的修改也都在本发明的范围之内。

Claims (10)

  1. 一种用于从容器分配产品的给料装置，所述给料装置包括装置主体，所述装置主体包括柱状壁，所述柱状壁形成腔体，并包括进料口和出料口，当所述给料装置安装到所述容器上时，所述给料口与所述容器的内部连通，其特征在于，在所述腔体中设置有密封构件，所述密封构件中包括容隙，且能够在所述腔体中在第一位置和第二位置之间往复运动，在所述第一位置中，所述容隙与所述给料口相连通，且相对于所述腔体的出料口密封，在所述第二位置中，所述容隙与所述腔体的所述出料口连通，且相对于所述进料口密封。
  2. 如权利要求1所述的给料装置，其特征在于，所述密封构件为柱塞，所述柱塞包括柱塞杆和形成在所述柱塞杆上的第一密封环和第二密封环，所述第一密封环与所述第二密封环间隔开，从而在所述第一密封环和所述第二密封环之间形成所述容隙。
  3. 如权利要求2所述的给料装置，其特征在于，所述柱塞包括第一柱塞部分和第二柱塞部分，所述第一密封环形成在所述第一柱塞部分上，所述第二密封环形成在所述第二柱塞部分上，其中，所述第一柱塞部分和所述第二柱塞部分能够彼此相对运动，从而调节所述第一密封环和所述第二密封环之间的距离。
  4. 如权利要求2所述的给料装置，其特征在于，所述腔体包括小直径部分和大直径部分，在所述第一位置中，所述第一密封环和所述第二密封环在所述小直径部分处与所述柱状壁干涉配合，在所述第二位置中，所述第一密封环仍处于所述小直径部分，并保持与所述柱状壁的干涉配合，而所述第二密封环进入到所述大直径部分中，并在所述第二密封环和所述柱状壁之间形成空隙。
  5. 如权利要求2所述的给料装置，其特征在于，在所述第一位置中，所述第一密封环和所述第二密封环与所述柱状壁干涉配合，在所述第二位置中，所述第一密封环保持与所述柱状壁的干涉配合，而所述第二密封环运动到所述腔体之外。
  6. 如权利要求2所述的给料装置，其特征在于，所述腔体包括小直径部分和大直径部分，且所述第一密封环的直径小于所述第二密封环的直径，其中， 在所述第一位置中，所述第一密封环在所述小直径部分处与所述柱状壁干涉配合，所述第二密封环在所述大直径部分处与所述柱状壁干涉配合，在所述第二位置中，所述第一密封环仍处于所述小直径部分，并保持与所述柱状壁的干涉配合，而所述第二密封环运动到所述腔体之外。
  7. 如权利要求1所述的给料装置，其特征在于，所述给料装置还包括弹性复位机构，所述弹性复位机构一端直接或间接地抵接在所述密封构件上，另一端直接或间接地抵接在所述装置本体上。
  8. 如权利要求7所述的给料装置，其特征在于，所述给料装置包括致动构件，所述密封构件连接在所述致动构件上，所述致动构件能够相对于所述装置本体运动，从而带动所述密封构件在所述第一位置和所述第二位置之间运动。
  9. 如权利要求7所述的给料装置，其特征在于，所述弹性复位机构包括至少一根弹性条，所述弹性条的一端直接或间接地抵接在可往复运动的所述密封构件上，且所述弹性条的另一端直接或间接地抵接在所述装置主体上，并且其中，
    所述弹性复位机构能够相对于所述密封构件旋转，在所述弹性复位机构与所述密封构件之间设置有预加载结构，通过所述弹性复位机构相对于所述密封构件的旋转，所述弹性条在未加载状态和预加载状态之间切换；或者
    所述弹性复位机构能够相对于所述装置主体旋转，在所述弹性复位机构与所述装置之间设置有预加载结构，通过所述弹性复位机构相对于所述装置主体的旋转，所述弹性条在未加载状态和预加载状态之间切换。
  10. 如权利要求9所述的给料装置，其特征在于，所述预加载结构包括：设置在所述弹性复位机构和所述密封构件中的一个上的螺旋槽，以及设置在所述弹性复位机构和所述密封构件中的另一个上的螺旋凸条；或者
    所述预加载结构包括：设置在所述弹性复位机构和所述装置主体中的一个上的螺旋槽，以及设置在所述弹性复位机构和所述装置主体中的另一个上的螺旋凸条。
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