JP3143497U - Fluid filling valve - Google Patents

Abstract

Provided is a fluid filling valve that smoothly supplies fluid and prevents fluid dripping from an outlet and suppresses variation in supply weight.
A fluid filling valve (10) has a fluid chamber (13) inside, has a first fluid outlet (34) that opens at the lower end, and is connected to the fluid chamber (13) on the side to extend outward. A tubular valve body 11 provided with a pipe portion 14, a first shaft member 38 that is inserted into the fluid chamber 13 from the upper end of the valve body 11 in a fluid-tight manner in a fluid-tight state, and a first shaft member 38 A second shaft member 61 inserted into the shaft hole 38a so as to freely move up and down, and a drive device 71 that moves the first and second shaft members 38 and 61 up and down are provided. On the lower end side of the first shaft member 38, a first valve body portion 51 having a second fluid outlet 51 and enabling the first fluid outlet 34 to be closed is attached. A second valve body 62 is attached to the lower end of the second shaft member 61 so that the second fluid outlet 51 can be closed.
[Selection] Figure 1

Description

  The present invention relates to a fluid filling valve applied to a fluid filling machine that fills a container with a fluid or fluid fluid such as food by controlling a supply amount.

  Conventionally, as this type of fluid filling valve, a fluid outlet is provided on the lower side of the valve body having a fluid chamber inside, and a supply pipe for supplying fluid from the outside is connected to one side of the valve body. Further, there has been known one provided with a shaft member provided with a valve body at a tip end inserted in a bubble main body so as to be movable up and down. In this fluid filling valve, the fluid supplied from a supply pipe connected to one side of the valve body is adjusted by opening and closing the shaft member so that the fluid flows downward from the fluid outlet by adjusting the opening and closing of the fluid outlet. To supply the proper amount.

For example, in the liquid filling valve shown in Patent Document 1, the outer shaft member (liquid passage valve) is hollow, and the inner shaft member (gas passage valve) serves as a gas passage that can be opened to the atmosphere or supplied with pressurized gas to the hollow portion. Inserted, the outer shaft member and the inner shaft member are connected by an elastic member so that they can move relative to each other in the axial direction, the outer shaft member descends and sits on the valve seat at the lower end of the valve body to close the liquid passage In this case, only the inner shaft member is further lowered to open the gas passage, and when the outer shaft member is raised to open the liquid passage, the elastic member is closed. This liquid filling valve shuts off the liquid passage by the outer shaft member and stops the supply of fluid, and then the inner shaft member descends to open the gas passage and supply gas, thereby remaining under the liquid passage. The liquid is forced to drop to prevent dripping after the supply is stopped. However, since this fluid filling valve has a single liquid passage, the diameter of the fluid filling valve is increased when supplying a large amount of liquid. Variations in the liquid supply amount tend to occur. Further, in order to suppress the dripping after the supply is stopped, it is necessary to reduce the diameter of the liquid passage, but there is a problem that the amount of liquid supply for that purpose is reduced.
Utility Model Registration No. 2505570

  The present invention is intended to solve the above-described problem, and a fluid filling valve that smoothly supplies liquid or fluid fluid and prevents liquid dripping from an outlet to suppress variation in supply weight. The purpose is to provide.

  In order to achieve the above object, the structural features of the present invention are a cylindrical shape extending vertically and a fluid chamber inside, and a large-diameter first fluid outlet opening at the lower end. And a valve body provided with a supply pipe connected to the fluid chamber at the side and extending outward from the outside, and inserted into the fluid chamber from the upper end of the valve body in a fluid-tight manner in a fluid-tight manner. A first shaft member having a shaft hole at the center thereof, a second shaft member inserted in the shaft hole of the first shaft member so as to be movable up and down, and a drive device for vertically moving the first shaft member and the second shaft member, respectively And a second fluid outlet that is supported on the lower end side of the first shaft member and is spaced apart in the axially extending direction and has a smaller diameter than the first fluid outlet and has a first fluid flow at the lower end of the valve body. A first valve body portion that makes contact with the periphery of the outlet and enables the first fluid outlet to be closed, and a lower end of the second shaft member Ri attached is in the second that the periphery of the fluid outlet of the contact with the second fluid outlet is provided and a second valve body portion to allow blockage.

  In the present invention configured as described above, before the fluid is supplied, the first shaft member and the second shaft member are moved downward so that the first valve body is placed on the valve seat around the first fluid outlet. The first fluid outlet is closed by the contact, and the second outlet is closed by bringing the second valve body into contact with the valve seat around the second outlet of the first valve body. As a result, the fluid supplied from the outside into the fluid chamber through the supply pipe is kept in the fluid chamber. Next, the first fluid outlet is opened by moving the first shaft member and the second shaft member upward and separating the first valve body portion from the valve seat around the first fluid outlet. The fluid supplied from the fluid filling machine or the like into the fluid chamber through the supply pipe is smoothly dropped into the lower container from the large-diameter first fluid outlet. After the passage of the first predetermined time, the first fluid outlet is moved by moving the first shaft member downward and bringing the first valve body portion into contact with the valve seat around the first fluid outlet. The second outlet having a small diameter provided in the first valve body is closed. Thereby, the discharge amount of the fluid supplied from the outside is reduced. Further, after a predetermined second time has elapsed, the second shaft member is moved downward, and the second valve body is brought into contact with the valve seat around the second fluid outlet, thereby causing the second fluid flow. The outlet is blocked. Accordingly, the supply of the fluid supplied from the outside into the fluid chamber is stopped.

  As described above, according to the present invention, the fluid supplied into the fluid chamber is smoothly supplied from the large-diameter first fluid outlet to the container, and then the first outlet is closed to close the small-diameter second fluid. The amount of fluid supply was adjusted in two stages so that the fluid was supplied at a reduced flow rate from the fluid outlet. Thereby, dripping from the small-diameter second fluid outlet after the fluid supply is stopped can be suppressed. As a result, in the present invention, the supply of fluid to the container can be performed in a short time, and the amount of fluid supplied to the container can be appropriately controlled by suppressing dripping from the lower end of the valve body. .

  In the present invention, the second shaft member and the second valve body are provided with an air flow hole penetrating in the axial direction so that compressed air can be supplied into the air flow hole from the upper end opening of the second shaft member. Is preferred. Thereby, after the second fluid outlet is closed by the second valve body, the compressed air is supplied through the air circulation hole, so that the fluid accumulated around the second fluid outlet can be quickly dropped. Who can be more effectively suppressed.

  According to the present invention, the supply amount of the fluid supplied into the fluid chamber is adjusted in stages from the first fluid outlet having a large diameter and the second fluid outlet having a smaller diameter. It is possible to appropriately control the amount of fluid supplied to the container while suppressing the dripping from the lower end of the valve body while performing the supply to the container in a short time.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIGS. 1 and 2 schematically show a valve body portion on the lower side and a drive device portion on the upper side of the fluid filling valve 10 according to the embodiment in a partially cutaway front view. 3 to 5 are partially broken sectional views showing operation states I to III of the fluid filling valve 10.

  The fluid filling valve 10 has a cylindrical shape whose upper and lower ends are sealed and has a fluid chamber 13 inside. The fluid filling valve 10 has a large-diameter first fluid outlet 34 that is open at the lower end. And a valve body 11 provided with a supply pipe portion 14 to which fluid is supplied from the outside, which extends outward, and is inserted into the fluid chamber 13 from the upper end of the valve body 11 so as to be movable up and down in a liquid-tight state. A first shaft member 38 having a shaft hole 38a at the center, a second shaft member 61 inserted into the shaft hole 38a of the first shaft member 38 so as to be movable up and down, a first shaft member 38, and a second shaft member 61. The driving device 71 is configured to move up and down. A support member is attached to the lower end side of the first shaft member 38 and extends in the axial direction. The lower end of the first shaft member 38 has a small-diameter second fluid outlet 51a opening at the center and the first fluid outlet 34. A first valve body portion 51 that is in contact with the periphery and enables the first fluid outlet 34 to be closed is attached. Further, a second valve body 62 is attached to the lower end of the second shaft member 61 so as to contact the periphery of the second fluid outlet 51a so that the second fluid outlet 51a can be closed.

  The valve body 11 has a cylindrical portion 12 having a thin cylindrical shape made of metal and having a fluid chamber 13 inside. The fluid extends integrally from a part of the side wall of the cylindrical portion 12 radially outward. A cylindrical supply pipe portion 14 communicating with the inside of the chamber 13 is provided. The distal end side of the supply pipe section 14 is connected to a fluid filling machine (not shown) that supplies fluid. An annular outer flange portion 15 slightly extending radially outward on the outer peripheral surface is attached to the upper end of the cylindrical portion 12 by welding or the like, and the lower end of the cylindrical portion 12 is attached to the inner peripheral surface. An annular inner flange portion 16 slightly extending inward in the radial direction is attached by welding or the like, and the inner side thereof is a lower end opening 16a. A shaft attachment member 17 is attached to the upper end of the cylindrical portion 12 to close the upper end opening 12 a of the cylindrical portion 12.

  The shaft mounting member 17 has a mounting plate portion 18 that is a steel plate having a center hole 18a having the same diameter as the outer flange portion 15 and an inner diameter of approximately half of the opening 12a. The mounting plate portion 18 is placed on the upper end of the cylindrical portion 12 and is fixed to the outer flange portion 15 by a bolt 19 through the mounting hole 18b. On the upper surface of the mounting plate portion 18, there is mounted a support cylinder portion 21 having a cylindrical shape having a shaft hole 21 a having substantially the same diameter as the center hole 18 a and having an annular flange portion 22 extending radially outward on the lower end side. And, it is fixed to the mounting plate portion 18 by being stopped by a bolt 23 at an annular flange portion 22. In the center hole 18a of the mounting plate portion 18, a clamping plate 24 having the same thickness as the mounting plate portion 18 and the same diameter as the center hole 18a is fitted. The sandwiching plate 24 has a center hole 24a having a diameter slightly larger than the center hole 21a of the support cylinder portion 21, and an annular thin plate-like support portion 24b that extends slightly in the center direction over the entire circumference at the lower end. It has a center hole 24c inside. The clamping plate 24 is fixed to the bottom surface of the support cylinder portion 21 with bolts 25, and an annular lower liquid seal packing 26 made of a rubber elastic body is fitted into a recess on the support portion 24b. The lower liquid seal packing 26 has the same outer diameter as the center hole 24 a and the same inner diameter as the center hole 24 c, and is sandwiched between the support portion 24 b and the bottom portion of the support cylinder portion 21.

  An upper plate 27 having a center hole 27a having the same outer diameter as the outer diameter of the support cylinder portion 21 and having the same diameter as the center hole 24c is fixed to the upper end surface of the support cylinder portion 21 by bolts 28. The upper plate 27 has an annular projecting portion 27b that surrounds the center hole 27a on the lower surface and slightly projects downward and fits into the center hole 21a of the support tube portion 21. A cylindrical spacer 30 is inserted in the center hole 21a of the support cylinder portion 21, and an annular upper liquid seal packing 29 made of a rubber elastic body is inserted on the upper end side of the center hole 21a. The upper liquid seal packing 29 is pressed by the protruding portion 27 b of the upper plate 27. Support bars 31 erected at a plurality of locations in the circumferential direction of the outer peripheral edge are fixed to the upper surface of the mounting plate portion 18 by welding. In addition, a circular substrate portion 72 of a driving device 71 (described later) having the same outer diameter as that of the mounting plate portion 18 is placed coaxially with the mounting plate portion 18 at the upper ends of the plurality of supporting rods 31, and is supported by bolts 72b. 31 is fixed.

  An annular lower valve seat member 33 made of steel is attached to the opening 16a at the lower end of the cylindrical portion 12. The lower valve seat member 33 has the same outer diameter as that of the cylindrical portion 12, and the inner diameter of the first fluid outlet 34 provided in the center is smaller than the inner diameter of the inner flange portion 16. The lower valve seat member 33 is provided with an annular valve seat 35 that extends slightly in the axial direction over the entire inner periphery on the upper surface side and has a rectangular axial cross section. The valve seat 35 has a flat upper surface, a height of about ３ of the thickness of the inner flange portion 16, and the outer diameter of the outer peripheral surface is the same as the inner diameter of the inner flange portion 16. The lower valve seat member 33 is provided with a lower projecting portion 36 having an axial cross section extending in the axial direction over the entire inner peripheral edge on the lower surface side. The lower protrusion 36 has an inner peripheral surface extending in the axial direction, an outer peripheral surface inclined downward in the axial direction, and has an axial cross-sectional shape of a triangle. The lower valve seat member 33 is inserted into the inner flange portion 16 with the outer peripheral surface of the valve seat 35 being in close contact with the inner peripheral surface of the inner flange portion 16, and is fixed to the inner flange portion 16 by bolts 37 inserted from the lower surface. ing.

  The first shaft member 38, which is a straight steel pipe, passes through the center hole 24 c of the holding plate 24 of the support cylinder portion 21, the center hole 27 a of the upper plate 27, the upper and lower liquid seal packings 26 and 29, and the spacer 30. And is inserted into the fluid chamber 13 from the upper end side of the valve body 11 in a fluid-tight state so as to be movable up and down. The first shaft member 38 has an outer diameter slightly smaller than the center hole 24c and the center hole 27a, and has a shaft hole 38a penetrating the shaft center, and the upper end side is inserted through the center hole of the shaft mounting member 17. Projecting upward and attached to a piston 77 of a first cylinder portion 73, which will be described later, and a lower end side thereof is fixed to a mounting plate 39, which is a steel disc disposed coaxially in the fluid chamber 13, by welding. .

  The mounting plate 39 has a center hole 39a having a diameter smaller than the outer diameter of the first shaft member 38 and larger than the shaft hole 38a. A bearing 41 is coaxially inserted into the center hole 39a by press-fitting. It is fixed. Around the center hole 39 a on the lower surface of the mounting plate 39, a seal portion 42 in which upper and lower clamping portions 43 and 44 are overlapped is attached by a bolt 45. The upper clamping portion 43 has a large-diameter center hole 43a, and an annular thin plate-like support portion 43b slightly extending in the center direction at the upper end protrudes, and the inside thereof is a center hole 43c. . In the lower clamping portion 44, the inner diameter of the center hole 44a is the same as the inner diameter of the center hole 43c. A cylindrical liquid seal packing 46 is inserted into the center hole 43a of the upper clamping part 43, and is sandwiched and held between the upper and lower clamping parts 43 and 44 that are overlapped.

  On the outer peripheral edge of the lower surface of the mounting plate 39, support rods 48 are attached by bolts 49 at a plurality of locations in the circumferential direction and extend downward in the axial direction. The first valve body 51 is fixed to the tips of the plurality of support rods 48 by welding. The first valve body 51 is formed by overlapping a disk-shaped upper member 52, an intermediate member 53, and a lower member 56 on the same axis. The upper member 52 and the intermediate member 53 are steel thick plates having the same outer diameter as the inner flange portion 16, the upper member 52 has a large-diameter center hole 52a, and the intermediate member 53 has a smaller diameter center. It has a hole 53a. The upper member 52 is a recess 52b in which a portion from the middle in the radial direction of the bottom surface to the outer periphery of the center hole 52a is slightly recessed.

  The intermediate member 53 is a convex portion 53b whose upper surface portion corresponding to the concave portion 52b of the upper member 52 protrudes, and is a concave portion 53c whose central side is slightly recessed from the radial intermediate position of the lower surface. In a state where the upper member 52 and the intermediate member 53 are overlapped with each other, a gap is formed between the concave portion 52b and the convex portion 53b, and a valve seat seat packing 54, which is an annular thin plate, is attached to the convex portion 53b side therebetween. And is disposed between the concave portion 52b and the convex portion 53b. The valve seat packing 54 has an outer diameter that is the same as the outer diameter of the recess 52 b and an inner diameter that is the same as that of the center hole 53 a, and is sandwiched between the upper member 52 and the intermediate member 53. The inner surface is exposed on the upper surface of the intermediate member 53. The exposed upper surface portion of the intermediate member 53 is a valve seat with which a second valve body portion 62 to be described later contacts. The upper member 52 and the intermediate member 53 are fixed by bolts 55 from the upper surface side on the outer peripheral side in a state where they are overlapped with each other.

  The lower member 56 is a thin plate having a flat upper surface, and has an outer diameter smaller than that of the intermediate member 53 and the same as the inner diameter of the lower valve seat member 33. The lower member 56 has a central hole 56a having the same diameter as the central hole 53a of the intermediate member 53. Provided. The center holes 52a, 53a and the center hole 56a constitute a second fluid outlet 51a. The lower member 56 is provided with an annular lower protrusion 57 that extends in the axial direction over the entire circumference of the outer peripheral edge of the lower surface. The lower protrusion 57 has an outer peripheral surface extending in the axial direction, an inner peripheral surface inclined downward in the radial direction, and has an axial cross-sectional shape of a triangle. Further, the lower member 56 is provided with an annular convex portion 56b that slightly protrudes along the entire circumference in the circumferential direction around the center hole 56a on the upper surface.

  In a state where the intermediate member 53 and the lower member 56 are overlapped, the concave portion 53c and the convex portion 56b are in close contact with each other, and a radially outer side thereof is a gap, and a valve seat seat packing 58 that is an annular thin plate is interposed therebetween. It is stuck on the bottom surface of the member 53 and sandwiched. The valve seat packing 58 has an outer diameter that is the same as the outer diameter of the intermediate member 53, and an inner diameter that is the same as the outer diameter of the convex portion 56 b, and is sandwiched between the intermediate member 53 and the lower member 56. 56 is exposed on the lower surface of the intermediate member 53 on the radially outer side. The intermediate member 53 and the lower member 56 are fixed by bolts 59 on the inner peripheral side in a state where they are overlapped with each other. A second shaft member 61, which is a straight steel pipe having a smaller diameter than the shaft hole 38 a, is inserted into the shaft hole 38 a of the first shaft member 38.

  The second shaft member 61 has a shaft hole 61a penetrating the shaft center, and the upper end side protrudes upward from the upper end of the first shaft member 38 and is attached to a piston 85 of the second cylinder portion 81 described later. . On the lower end side of the second shaft member 61, a second tubular valve body 62 made of steel and arranged coaxially in the fluid chamber 13 is fixed by welding. The second valve body portion 62 includes a cylindrical main body portion 63 and a nozzle portion 66 attached to the lower end side of the main body portion 63. The main body 63 integrally includes a disk portion 64 and a small-diameter portion 65 having a small diameter below the disc portion 64. The disc portion 64 has a plate thickness that is the same as that of the upper member 52 of the first valve body portion 51, an outer diameter that is the same as that of the upper member 52, and a center that is slightly smaller than the outer diameter of the second shaft member 61. It has a hole 64a. The small-diameter portion 65 has the same thickness as the combined thickness of the intermediate member 53 and the lower member 56 and the same outer diameter as the center hole 53a, and has a center hole 65a larger in diameter than the center hole 64a. . The nozzle part 66 is provided with an insertion part 67 having the same diameter as the central hole 65a of the small diameter part 65, and a disc-like discharge part 68 provided integrally at the lower end thereof. The insertion part 67 has a center hole 67a having the same diameter as the center hole 64a, and the discharge part 68 has a discharge hole 68a that is smaller in diameter than the center hole 67a on the insertion part 67 side and widens toward the lower end. Provided. The center holes 64 a, 65 a, 67 of the second valve body portion 62 and the discharge hole 68 a constitute an air flow hole together with the shaft hole 61 a of the second shaft member 61.

  The driving device 71 is configured by coaxially arranging a lower first cylinder portion 73 and an upper second cylinder portion 81 on a substrate portion 72. The substrate portion 72 is a disc having the same outer diameter as the mounting plate portion 18, and has a central hole 72 a having the same diameter as that of the first shaft member 38 at the center, and is fixed by a bolt 72 b at the upper end of the support rod 31. ing. The first cylinder portion 73 includes a thin cylindrical cylindrical main body 74 and a bottom plate portion 75 that closes the lower end opening thereof, and upper and lower stoppers 76a and 76b are fixed to the upper and lower ends of the inner peripheral surface of the cylindrical main body 74. A disk-shaped piston 77 is coaxially inserted inside. The bottom plate portion 75 has a center hole 75a having the same diameter as the center hole 72a at the center. A center hole 77a having the same diameter as that of the second shaft member is provided at the center of the piston 77. The first shaft member 38 is slidably inserted into the center holes 72a and 75a, and the upper end of the first shaft member 38 surrounds the center hole 77a on the bottom surface of the piston 77 and is fixed by welding. Further, upper and lower ports 78 and 79 for introducing compressed air penetrating through the wall surface are provided on the upper and lower ends of the cylinder main body 74. The first cylinder portion 73 is fixed to the upper surface of the substrate portion 72 by a bottom plate portion 75 coaxially by welding.

  Similarly to the first cylinder portion 73, the second cylinder portion 81 also includes a thin cylindrical tube body 82 and a bottom plate portion 83 that closes the lower end opening thereof, and upper and lower stoppers 84a and 84b are provided at the upper and lower ends of the tube body 82. Is fixed, and a disk-shaped piston 85 is coaxially inserted therein. The bottom plate portion 83 has a center hole 83a having the same diameter as the center hole 72a at the center. A center hole 85 a having the same diameter as the second shaft member 61 is provided at the center of the piston 85. The second shaft member 61 is slidably inserted into the center hole 77a of the piston 77 and the center hole 83a of the bottom plate portion 83. Further, the second shaft member 61 is inserted through the center hole 85a of the piston 85 and is fixed around the center hole 85a by welding, and is inserted through a center hole 88a of a sealing plate 88 described later and protrudes to the outside. . In addition, upper and lower ports 86 and 87 for introducing compressed air penetrating through the wall surface are provided on the upper and lower ends of the cylinder body 82. A sealing plate 88 having the same diameter as the bottom plate portion 83 is fixed to the upper end of the cylinder main body 82 to seal the upper end opening 82a. The second cylinder portion 81 is fixed to the upper end of the cylinder main body 74 of the first cylinder portion 73 by welding at the bottom plate portion 83 coaxially.

Next, the operation of the above embodiment will be described with reference to FIGS.
First, before supplying fluid, compressed air P is supplied from the upper port 78 of the first cylinder portion 73 and the upper port 86 of the second cylinder portion 81 as shown in FIG. Until the first shaft member 38 and the second shaft member 61 are moved downward. Thus, the first fluid outlet 34 is closed by bringing the first valve body 51 into contact with the valve seat 35 around the first fluid outlet 34, and the second valve body 51 is replaced with the first valve body 51. The second fluid outlet 51a is closed by abutting against the valve seat around the second fluid outlet 51a, and the fluid filling valve 10 is in the operation state I. As a result, the fluid F supplied from the outside into the fluid chamber 13 through the supply pipe portion 14 is kept in the fluid chamber 13.

  Next, as shown in FIG. 4, compressed air P is supplied from the lower port 79 of the first cylinder part 73 and the lower port 87 of the second cylinder part 81, and the pistons 77 and 85 are pushed up to the upper end. The first shaft member 38 and the second shaft member 61 are moved upward together. Thereby, the 1st valve body part 51 leaves | separates from the valve seat 35 around the 1st fluid outflow port 34, the 1st fluid outflow port 34 is open | released, and the fluid filling valve 10 will be in the operation state II. As a result, the fluid F supplied from the outside into the fluid chamber 13 through the supply pipe portion 14 is supplied at a high speed to the container 1 provided below from the opened large-diameter first fluid outlet 34 at a high speed. .

  After supplying the fluid from the first fluid outlet 34 for a predetermined time, as shown in FIG. 5, the compressed air is supplied from the upper port 79 of the first cylinder portion 73 without changing the second cylinder portion 81. The piston 77 is pushed down to the lower end, and only the first shaft member 38 is moved downward. As a result, the first valve body 51 is brought into contact with the valve seat 35 around the first fluid outlet 34, the first fluid outlet 34 is closed, and the fluid filling valve 10 enters the operation state III. Here, the second valve body portion remains upward, the first valve body portion 51 does not block the second fluid outlet 51a, and the small-diameter second fluid outlet 51a remains open. As a result, a small amount of the fluid supplied from the outside into the fluid chamber 13 through the supply pipe unit 14 falls from the second fluid outlet 51 a having a small diameter and is supplied into the container 1. Further, after a small amount of fluid is supplied from the second fluid outlet 51a for a predetermined time, the compressed air P is supplied from the upper port 86 of the second cylinder portion 81, and the piston 85 is pushed down to the lower end, whereby the second shaft member 61 is moved downward. Thereby, the second fluid outlet 51a is closed by bringing the second valve body 62 into contact with the valve seat around the second fluid outlet 51a of the first valve body 51, as shown in FIG. The supply of fluid is stopped.

  As described above, according to the present embodiment, the fluid supplied from the outside into the fluid chamber 13 through the supply pipe portion 14 is smoothly and rapidly supplied from the large-diameter first fluid outlet 34 to the container 1. After that, the first fluid outlet 34 is closed, the fluid is supplied from the second fluid outlet 51a having a small diameter, the fluid is supplied, and then the supply of the fluid is stopped. It is possible to suppress dripping from the outlet 51a. As a result, in this embodiment, the fluid can be smoothly supplied to the container in a short time, and dripping from the lower end of the valve body 11 can be suppressed to appropriately control the amount of fluid supplied to the container. can do. Further, in the present embodiment, the second shaft member 61 and the second valve body portion 62 are provided with an air flow hole penetrating in the axial direction so that compressed air can be supplied from the upper end opening of the second shaft member 61. ing. As a result, after the second fluid outlet 51a is closed by the second valve body portion 62, the fluid accumulated around the second fluid outlet 51a can be quickly dropped by supplying compressed air through the air circulation hole. In addition, dripping can be suppressed more effectively, and an accurate amount of fluid can be supplied.

  In the above-described embodiment, an air flow hole penetrating in the axial direction is provided in the axial position of the second shaft member 61 and the second valve body portion 62, and compressed air can be supplied from the upper end opening of the biaxial member 61. Therefore, it is possible to more reliably suppress dripping from the second fluid outlet 51a after the completion of fluid supply and supply an accurate amount of fluid. Can be omitted. In addition, the configuration of each part of the fluid filling valve shown in the above embodiment is merely an example, and various modifications can be made without departing from the spirit of the present invention.

  According to the present invention, the supply amount of the fluid supplied into the fluid chamber is adjusted in stages from the first fluid outlet having a large diameter and the second fluid outlet having a smaller diameter. This is useful because it is possible to appropriately control the amount of fluid supplied to the container while suppressing the dripping from the lower end of the valve body while performing the supply in a short time.

It is a partially broken front view which expands and shows the lower part of the fluid filling valve | bulb which is an Example of this invention. It is a partially broken front view which expands and shows the upper part of a fluid filling valve | bulb. It is a partially broken front view which shows the operation state I of the fluid filling valve. It is a partially broken front view which shows the operation state II of the fluid filling valve. It is a partially broken front view which shows the operation state III of the fluid filling valve.

Explanation of symbols

10: Fluid filling valve, 11: Valve body, 12: Tube portion, 13: Fluid chamber, 14: Supply pipe portion, 17: Shaft mounting member, 33: Lower valve seat member, 34: First fluid outlet, 35: Valve seat, 38: first shaft member, 38a: shaft hole, 51: first valve body part, 51a: second fluid outlet, 61: second shaft member, 61a: shaft hole, 62: second valve body part , 71: drive device, 73: first cylinder portion, 77: piston, 78, 79: upper and lower ports, 81: second cylinder portion, 85: piston, 86, 87: upper and lower ports.

Claims (2)

A cylindrical shape extending up and down, and the inside is a fluid chamber, has a first fluid outlet with a large diameter opened at the lower end, and is connected to the fluid chamber on the side and extends outward. A valve body provided with a supply pipe to which a fluid is supplied from, a first shaft member having a shaft hole at the center inserted in a fluid-tight manner in the fluid chamber from the upper end of the valve body in a fluid-tight manner, A second shaft member inserted in the shaft hole of the first shaft member so as to freely move up and down, a drive device for moving the first shaft member and the second shaft member up and down, and a lower end side of the first shaft member The second fluid outlet having a diameter smaller than that of the first fluid outlet at the center, and abutting around the first fluid outlet at the lower end of the valve body. A first valve body that enables the first fluid outlet to be closed; and a lower end of the second shaft member. Serial fluid filling valve, characterized in that a second valve body portion which abuts against the periphery of the second fluid outlet to allow closing the second fluid outlet. An air flow hole penetrating in the axial direction is provided in the second shaft member and the second valve body, and compressed air can be supplied into the air flow hole from the upper end opening of the second shaft member. The fluid filling valve according to claim 1.

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