Summary of the invention
The present invention is directed to the problem that existing liquid filling bottle causes refilling during because returning ink, part ink is excessive, anti-overflow liquid filling bottle is provided.
Anti-overflow liquid filling bottle provided by the invention, is achieved in that anti-overflow liquid filling bottle, comprises bottle, syringe, needle stand and needle tubing, described bottle has bottleneck, described syringe is located in described bottle, and its bottom offers the first through hole be communicated with described bottle inside, described needle stand has the second through hole being communicated with needle stand two ends, described needle stand inserts in described syringe, its top is connected with described bottle sealing, described needle stand is also provided with the first seal be tightly connected with the barrel of described syringe, described first seal and needle stand will be separated into the upper pin chamber that is communicated with bottle inside and the lower pin chamber with bottle internal insulation in described syringe, its underpart is inserted the first through hole of described syringe and described second through hole is communicated with described first through hole, and between described needle stand bottom and described first through hole, be provided with the second seal making mutually to seal between described lower pin chamber and described bottle inside, this needle stand is provided with at least one gas channels that described lower pin chamber is in communication with the outside, described needle tubing to be inserted in described second through hole and its pin end to be exposed to described needle stand outside and outside described bottle, the compression spring that two ends support described syringe and needle stand is respectively provided with in described lower pin chamber.
Particularly, above-mentioned liquid filling bottle also comprises bottle cap, and described bottle cap is covered on described bottle mouth position, which is provided with the 3rd seal be tightly connected with the pin end of described needle tubing.
Particularly, described upper pin chamber sidewall offers the side direction through hole be connected with described bottle inside, and described needle stand is provided with the 5th seal sealing described side direction through hole when described bottle cap covers tightly described bottleneck.
Particularly, described bottle mouth position is provided with the cylindrical support frame extended to described bottle inside, is provided with third through-hole bottom support frame as described above, and the top of described needle stand is through described third through-hole and be provided with the 4th seal described top and described third through-hole.
Particularly, described syringe top is inserted in support frame as described above bottom, and the two mutual convergence part is arranged with the first conduit being communicated with described bottle inside and upper pin chamber.
Particularly, described syringe bottom arranges described first through hole and is provided with the guide portion of being extended by described first through hole, and described guide portion is hollow tubular, and the bottom of described needle stand is inserted in described guide portion.
Particularly, described guide portion extends the inside to described syringe, and the outer surface of described syringe bottom supports described bottle body bottom, and the outer surface of bottom is provided with the second conduit connecting described first through hole and bottle inside.
Particularly, described needle stand comprises upper bracket, undersetting; Described upper bracket is connected with described bottle sealing, and its center is provided with first central through hole at through upper bracket two ends, which is provided with the upper gas circuit that upper bracket two ends gas circuit is communicated with; Described undersetting center is provided with the second central through hole being communicated with undersetting two ends, which is provided with the lower gas circuit that undersetting upper end is communicated with described lower pin chamber gas circuit; Described first central through hole and described second central through hole align to be communicated with and form described second through hole, and described upper gas circuit is communicated with the mutual gas circuit of described lower gas circuit and forms described venting channels.
Particularly, described upper bracket bottom is mutually supported with described undersetting top and is connected, and described first seal is located at the periphery that described upper bracket and undersetting are interconnected place.
Particularly, the peripheral element that described upper bracket comprises tubular and the chipware be arranged in peripheral element, described first central through hole is arranged at described chipware center, and chipware peripheral surface is provided with the 3rd conduit forming described upper gas circuit.
Beneficial effect of the present invention is: anti-overflow liquid filling bottle provided by the invention, when described needle stand is subject to the downward pressure from pen, the air pressure in described bottle can be made to decline, and then make the air pressure of described bottle inside be less than air pressure in pen barrel, thus complete back black action; Make described needle stand at the effect automatic re-ascending of described compression spring when removing the pressure of pen to described needle stand, keep the barrel of described pen and described needle tubing to keep being connected simultaneously, the air pressure in described bottle can be made to increase, and then make the air pressure of described bottle inside be greater than air pressure in pen barrel, and then complete refilling action, Hui Mo and refilling are combined as a whole by it, user-friendly.Again because first completing back black action before refilling action, there is not the problem that refilling process ink inside is excessive.
Detailed description of the invention
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1, for anti-overflow liquid filling bottle one preferred embodiment provided by the invention normal place time structural representation, it comprises bottle 1, syringe 2, needle stand 3 and needle tubing 4, described bottle 1 has bottleneck 101, described syringe 2 is located in described bottle 1, and its bottom 201 offers the first through hole 202 be communicated with described bottle 1 inside, described needle stand 3 has the second through hole 301 being communicated with needle stand 3 two ends, described needle stand 3 inserts in described syringe 2, its top 302 is tightly connected with described bottleneck 101, described needle stand is also provided with the first seal 501 be tightly connected with the barrel of described syringe 2, described first seal 501 and needle stand 3 will be separated into the upper pin chamber 21 that is communicated with bottle 1 inside and the lower pin chamber 22 with bottle 1 internal insulation in described syringe 2, its underpart 303 is inserted the first through hole 202 of described syringe 2 and described second through hole 301 is communicated with described first through hole 202, and between described bottom 303 and described first through hole 202, be provided with the second seal 502 making mutually to seal between described lower pin chamber 22 and described bottle 1 inside, this needle stand 3 is provided with the venting channels 305 that described lower pin chamber 22 is in communication with the outside, described needle tubing 4 to be inserted in described second through hole 301 and its pin end 401 to be exposed to described needle stand 3 outside and outside described bottle 1, the compression spring 6 that two ends support described syringe 2 and needle stand 3 is respectively provided with in described lower pin chamber 22.
Introduce operation principle of the present invention below: air pressure change when the present invention mainly utilizes described needle stand 3 pressurized descending and when resilience resets in described bottle 1, thus reach the object of Hui Mo and refilling.Gas-liquid channel in liquid filling bottle of the present invention can be divided into two parts: Part I is made up of described upper pin chamber 21, bottle 1 inside, the first through hole 202, second through hole 301 and needle tubing 4, and wherein said needle tubing 4 is for connecting the barrel of pen; Part II is made up of described lower pin chamber 22 and venting channels 305, and one end of wherein said venting channels 305 is communicated with outside air.
When liquid filling bottle of the present invention is in idle state, please refer to Fig. 1, described compression spring 6 is in reset mode, described needle stand 3 is in " upper ", described upper pin chamber 21 volume is minimum, and described lower pin chamber 22 volume is maximum, and the air pressure everywhere in whole liquid filling bottle is equal to ambient pressure value.
When described needle stand 3 is subject to pressing from pen and in the process of " bottom " movement, described compression spring 6 compresses because of pressurized gradually, described lower pin chamber 22 volume diminishes gradually, like this, air pressure in lower pin chamber 22 will rise gradually, the gas of lower pin chamber 22 inner high voltage will flow to the external world by described venting channels 305, and the air pressure in described lower pin chamber 22 and the external world are balanced mutually, meanwhile, described upper pin chamber 21 volume becomes large gradually, because described upper pin chamber 21 is communicated with described bottle 1 inside, so just, cause described bottle 1 air pressure inside to decline gradually, again because of described bottle 1 successively with described first through hole 202, second through hole 301 and needle tubing 4 are communicated with, and needle tubing 4 connects the barrel of pen, like this, in barrel air or excess ink all can equivalent volumes along described needle tubing 4, second through hole 301 and the first through hole 202 flow into described bottle 1, thus realize back black action, air pressure everywhere in final whole liquid filling bottle is equal to ambient pressure value.
After completing above-mentioned time black action, can pressure be removed and the barrel of pen should be kept still to keep being connected with described needle tubing 4, described needle stand 3 is made to be increased gradually from " bottom " until become in the process of " upper " under the effect of described compression spring 6, described lower pin chamber 22 volume becomes large gradually, air pressure in lower pin chamber 22 declines gradually, the gas in such external world will flow through described venting channels 305 and enter in described lower pin chamber 22, and the air pressure in described lower pin chamber 22 is balanced with extraneous; Meanwhile, described upper pin chamber 21 volume diminishes gradually, because described upper pin chamber 21 is communicated with described bottle 1 inside, like this, the air pressure of described bottle 1 inside can become large gradually, and then make the ink in bottle 1 (or solution) flow to barrel via described first through hole 202, second through hole 301 and described needle tubing 4, thus realize refilling action.
As the above analysis, anti-overflow liquid filling bottle provided by the invention has two kinds of functions of Hui Mo and refilling, feature easy to use, simple to operate.Again because first completing back black action before refilling action, there is not the problem that refilling process ink inside is excessive.
In the present embodiment, above-mentioned liquid filling bottle also comprises bottle cap 7, and described bottle cap 7 is covered on described bottleneck 101 place, which is provided with the 3rd seal 503 be tightly connected with the pin end 401 of described needle tubing 4.Described 3rd seal 503 adopts flexible rubber to be made, its center is provided with a blind hole, when liquid filling bottle leaves unused, described pin end 401 inserts in described blind hole, be interference fit between this blind hole and described pin end 401, so can ensure when liquid filling bottle leaves unused, even if overturn, can ensure that the ink in bottle does not leak.More specifically, described upper pin chamber 21 sidewall offers the side direction through hole 211 be connected with described bottle 1 inside, and described needle stand 2 is provided with the 5th seal 505 sealing described side direction through hole 211 when described bottle cap 7 covers tightly described bottleneck 101.Like this, when bottle cap 7 covers tightly described bottleneck 101, the described needle tubing 4 of described 3rd sealing 503 sealing, drives described needle stand 3 to move down simultaneously, makes the airtight described side direction through hole 211 of described 5th seal 505, thus all paths be in communication with the outside in described bottle 1 are closed, form a separate space, thus prevent because liquid filling bottle placement location is incorrect in transportation, during as being inverted, ink in described bottle 1 enters in described upper pin chamber 21, thus affects the normal use of liquid filling bottle.
Certainly, for the present invention, for realizing preventing the ink in described bottle 1 from entering this design effect in described upper pin chamber 21, also can adopt and described syringe 2 top is inserted in support frame as described above 8 bottom, and the two mutual convergence part is arranged with the first conduit being communicated with described bottle 1 inside and upper pin chamber 21.Particularly, described first conduit is arranged at described syringe 2 upper inside wall.Like this, the connection between support frame as described above 8 and described syringe 2 can be made more compact, make syringe 2 can be fixed on bottle 1 inner.In addition, the connection between bracing frame 8 and described syringe 2 is comparatively tight, also can effectively prevent the ink in bottle 1 from flowing in described upper pin chamber 21.
In the present embodiment, described bottleneck 101 place is provided with the cylindrical support frame 8 extended to described bottle 1 inside, be provided with third through-hole 81 bottom support frame as described above 8, the top 302 of described needle stand 3 is through described third through-hole 81 and be provided with the 4th seal 504 described top 302 and described third through-hole 81.Particularly, described bottleneck 101 is threaded with adopting between support frame as described above 8, thus removable support frame as described above 8 is installed on described bottleneck 101, and ensure that being tightly connected between support frame as described above 8 and described bottleneck 101.The periphery of described 4th seal 504 is provided with clamping groove the 5041, four seal 504 and is connected on described third through-hole 81 by described clamping groove 5041.Be provided with two circle bulge loops 5042 at the inwall of described 4th seal 504, and make to keep interference fit between described bulge loop 5042 and the top 302 of described needle stand 3.That is, in the present embodiment, by arranging bracing frame 8 at described bottleneck 101 place, and make to keep between bottleneck and bracing frame being tightly connected, again on bracing frame by offering described third through-hole 81, again the 4th seal 504 is set in third through-hole 81 place, and then makes the top 302 of described needle stand 3 realize being tightly connected with described third through-hole 81.Thus, realize being tightly connected between described bottleneck 101 and described needle stand 3 on the whole.Here, the return action of support frame as described above 8 to described needle stand 3 in the vertical direction has guiding and supporting role.Certainly, also the set-up mode of bracing frame 8 can not be adopted, directly seal is utilized to be connected and sealed with described bottleneck 101 described needle stand 3, but the top of described needle stand 3 can be made like this to expose to outside described bottleneck 101, finally cause whole liquid filling bottle height to increase, carry or in transport can relatively inconvenience.
In the present embodiment, described syringe 2 bottom 201 arranges described first through hole 202 place and is provided with the guide portion 203 of being extended by described first through hole 202, and described guide portion 203 is in hollow tubular, and the bottom 303 of described needle stand 3 is inserted in described guide portion 203.Like this, extend in fact the length of described first through hole 202, be convenient to the connection between described first through hole 202 and described second through hole 301.
In the present embodiment, described guide portion 203 extends the inside to described syringe 2, and the outer surface of described syringe bottom 201 is supported bottom described bottle 1, and the outer surface of bottom 201 is provided with the second conduit 204 connecting described first through hole 202 and bottle 1 inside.Like this, make, bottom bottle 1 described in the direct overhead of described syringe 2, to be convenient to the fixing of described syringe 2 further.
Please refer to Fig. 2, in the present embodiment, described needle stand 3 comprises upper bracket 31, undersetting 32; Described upper bracket 31 is tightly connected with described bottleneck 101, and its center is provided with first central through hole 311 at through upper bracket 31 two ends, which is provided with the upper gas circuit 312 that upper bracket 31 two ends gas circuit is communicated with; Described undersetting 32 center is provided with the second central through hole 321 being communicated with undersetting 32 two ends, which is provided with the lower gas circuit 332 that undersetting upper end is communicated with described lower pin chamber 22 gas circuit; Described first central through hole 311 and described second central through hole 321 align to be communicated with and form described second through hole 301, and described upper gas circuit 312 and described lower gas circuit 332 mutually gas circuit are communicated with and form described venting channels 305.Here, described upper needle stand 3 is split as upper bracket 31 and undersetting 32 two parts, greatly reduces the cost of quality.
In the present embodiment, described upper bracket 31 bottom is mutually supported with described undersetting 32 top and is connected, and described first seal 501 is located at the periphery that described upper bracket 31 and undersetting 32 are interconnected place.Particularly, described upper bracket 31 bottom is the tubular structure of bottom end opening, and accordingly, described undersetting 32 top is the tubular structure of top end opening, and described undersetting 32 top is contained in described upper bracket 32 bottom.In addition, be respectively equipped with ring 33, form an annular groove 34 between two rings 33 in the periphery on described upper bracket 31 bottom and described undersetting 32 top, described first seal 501 is arranged in described annular groove 34.Like this, described ring 33 the setting can being convenient on the one hand described first seal 501 is set, make to be easier to seal between described upper bracket 31 and described undersetting 32, on the other hand the ring 33 of upper bracket 31 can support described support member 8, upwards move sliding position limiting structure as described needle stand 3.
In the present embodiment, the peripheral element 313 that described upper bracket 31 comprises tubular and the chipware 314 be arranged in peripheral element 313, described first central through hole 311 is arranged at described chipware 314 center, and chipware 314 peripheral surface is provided with the 3rd conduit forming described upper gas circuit 312.Like this, the design of the upper gas circuit 312 in the making of described upper bracket 31, particularly upper bracket 31 can be further facilitated.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.