CN109701435B

CN109701435B - Valve device for diluting liquid medicine

Info

Publication number: CN109701435B
Application number: CN201910083489.6A
Authority: CN
Inventors: 施鑫镛
Original assignee: Senmiao Shandong Pharmaceutical Co ltd
Current assignee: Senmiao (Shandong) Pharmaceutical Co.,Ltd.
Priority date: 2019-01-29
Filing date: 2019-01-29
Publication date: 2021-05-28
Anticipated expiration: 2039-01-29
Also published as: CN109701435A

Abstract

The invention discloses valve equipment for diluting liquid medicine, which comprises a pipe body, a valve core arranged in the pipe body, a discharge pipe arranged on the pipe body and a handle capable of moving back and forth, wherein the valve core is arranged in the pipe body; the pipe body is provided with an upper cover body, and the handle is movably connected with the upper cover body; the discharging pipe is provided with a feeding hole, and the valve core is connected with the feeding hole through a second arc-shaped pipe; a discharge pipe is arranged between the valve core and the pipe body; the handle is connected with the valve core through a connecting piece; the connecting piece comprises a connecting rod rotationally connected with the upper cover body and a connecting block connected with the valve core in a buckling mode; the connecting rod is fixedly connected with one side of the upper surface of the connecting block; according to the invention, the connecting rod is rotatably connected and arranged on one side of the connecting block, so that the eccentric valve core is controlled by the handle, the valve equipment is ensured to realize the selection and switching of cold and hot materials, the practicability of the valve equipment is increased, and the valve equipment is convenient to use.

Description

Valve device for diluting liquid medicine

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a valve device for diluting liquid medicine.

Background

When the traditional Chinese medicine is prepared, the medicament is often decocted into a fluid extract liquid medicine, and then diluted and packaged, the fluid extract liquid medicine is generally filled in a charging basket, and the liquid medicine is firstly introduced into a container, and then water is added to complete the dilution of the liquid medicine; however, this method tends to result in uneven dilution.

Disclosure of Invention

The invention provides a valve device for diluting liquid medicine, which is used for overcoming the defects of the prior art and uniformly mixing the liquid medicine and water.

In order to achieve the purpose, the invention adopts the following technical scheme: a valve device for diluting liquid medicine comprises a pipe body, a valve core arranged in the pipe body, a discharge pipe arranged on the pipe body and a handle capable of moving back and forth; the pipe body is provided with an upper cover body, and the handle is movably connected with the upper cover body; the discharging pipe is provided with a feeding hole, and the valve core is connected with the feeding hole through a second arc-shaped pipe; a discharge pipe is arranged between the valve core and the pipe body; the handle is connected with the valve core through a connecting piece; the connecting piece comprises a connecting rod movably connected with the upper cover body and a connecting block detachably connected with the valve core; the connecting rod is movably connected with the connecting block; the connecting rod on the connecting piece is arranged at the center of the upper cover body, so that the connecting piece can rotate relative to the upper cover body and move up and down without influencing the rotation of the upper cover body; the connecting block on the connecting piece is connected with the buckle between the valve core and is connected with the connecting rod in a rotating manner, so that the rotation of the element in the valve core can be driven when the handle rotates, the lifting and the lowering of the handle can drive the lifting and the lowering of the element in the valve core, the control of the handle on the eccentric valve core is realized, the liquid medicine and water can be directly introduced into the valve device through the matching of the handle and the valve core, the liquid medicine and the water are mixed in the valve device and then are introduced into the container, the liquid medicine and the water are mixed more uniformly, and the drug effect of the diluted liquid medicine is ensured.

Further, the valve core comprises a shell fixedly connected with the inner wall of the pipe body at one side far away from the discharge pipe, a bottom cover fixedly connected with the shell, a static ceramic valve plate tightly matched with the bottom cover, a rotatable movable ceramic valve plate, a movable valve body in rotation-stopping fit with the movable ceramic valve plate, a rotating part capable of moving up and down and a discharge hole formed in the shell; through the matching between the movable ceramic valve plate and the static ceramic valve plate, the mixing of the liquid medicine and the water in different proportions is realized, and the structure is simple and effective; the rotating piece drives the movable valve body, so that the ceramic valve block is driven to rotate, the transmission is simple, the control is convenient, and the structure is stable.

Furthermore, the rotating part comprises a sealing cover matched with the movable ceramic valve plate, a shaft body rotationally connected with the shell, a sliding block arranged on the shaft body, a first limiting groove formed by inwards recessing part of the outer surface of the shaft body, and a first limiting block arranged on the shaft body; the rotary piece is provided with the sealing cover, so that the functions of opening and closing the valve and controlling the discharge amount are realized, and the structure is simple and effective; and the rotation of the shaft body drives the rotation of the internal elements of the valve core, so that the utilization rate of energy is improved.

Furthermore, a sliding groove for the sliding block to move is arranged on the movable valve body; a second limiting groove matched with the first limiting block is formed in the connecting block, and a second limiting block matched with the first limiting groove is formed in the connecting block; the sliding chute has a limiting effect on the sliding block while the sliding block can move up and down in the sliding chute due to the arrangement of the sliding chute, so that the sliding chute has a rotation stopping effect on the sliding block, and the rotating piece can drive the movable valve body to rotate; through the cooperation between spacing groove and the stopper for the connecting piece can drive and rotate a rotation, can drive again and rotate a piece and reciprocate, and simple structure is high-efficient, stable in structure.

Furthermore, the movable ceramic valve plate comprises a hot material channel for hot material to pass through, a cold material channel for cold material to pass through and a rotation stopping groove matched with the movable valve body in a rotation stopping way; through the setting of the rotation stopping groove, the movable valve body can be plugged with the movable ceramic valve plate, rotation stopping matching between the movable valve body and the movable ceramic valve plate is achieved, the movable valve body can drive the movable ceramic valve plate to rotate, the structure is simple and effective, and installation and disassembly are facilitated.

Furthermore, the static ceramic valve plate comprises a water inlet connected with the water inlet pipe, a liquid medicine port connected with the liquid medicine pipe and a limiting rod in rotation stopping fit with the movable ceramic valve plate; through the setting of gag lever post for move ceramic valve block and can't rotate promptly after rotating certain angle, and then guarantee that the liquid medicine mouth communicates with the liquid medicine passageway all the time, guarantee the stable supply of liquid medicine.

Further, the second arc-shaped pipe comprises a first arc-shaped section connected with the discharge hole, a fourth arc-shaped section connected with the feed hole, an inclined plane section, a second arc-shaped section arranged between the first arc-shaped section and the inclined plane section, and a third arc-shaped section arranged between the fourth arc-shaped section and the inclined plane section; the first arc-shaped section is connected with the discharge hole of the valve core, so that the liquid medicine flows down along the first arc-shaped section after the valve core is not discharged, and the potential energy of the liquid medicine is converted into downward flowing kinetic energy while the orientation of the liquid medicine is changed; when the liquid medicine flows to the second arc-shaped section, the second arc-shaped section plays a role in changing the direction of the liquid medicine again, so that the liquid medicine generates a certain rotating force under the action of the second arc-shaped section, the function of better cleaning impurities is played, and the liquidity of the liquid medicine is increased; the liquid medicine flows through the inclined plane section, and the inclined plane section plays a role in further increasing the flow rate of the liquid medicine; the third arc-shaped section plays a role in changing the direction of the liquid medicine again, so that the direction of the liquid medicine is perpendicular to that of the filter screen piece, and meanwhile, the third arc-shaped section further gives a rotary force to the liquid medicine, so that the liquid medicine plays a better role in washing the filter screen piece; and the setting of fourth segmental arc makes the last part not have the liquid medicine of too big kinetic energy to change the orientation again under the effect of fourth segmental arc, flows downwards along the fourth segmental arc, and then flows through the scraper, will adhere to under the impurity washout on scraper surface for the discharge of impurity is more clean thorough, reduces the remaining of impurity, and then guarantees the more effectual work of impurity clearing device.

In conclusion, the connecting rod is rotatably connected to the connecting block, so that the eccentric valve core is controlled by the handle, the valve device is guaranteed to be capable of mixing liquid medicine and water in different proportions, the practicability of the valve device is improved, and the valve device is convenient to use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the valve cartridge of the present invention;

FIG. 3 is a top view of the static ceramic valve plate according to the present invention;

FIG. 4 is a top view of the dynamic ceramic valve plate according to the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 1;

FIG. 6 is an enlarged view at B of FIG. 1;

FIG. 7 is a sectional view of the connection between the tapping pipe and the pipe body according to the invention;

FIG. 8 is an enlarged view at C of FIG. 7;

FIG. 9 is an enlarged view taken at D in FIG. 7;

FIG. 10 is an enlarged view at E in FIG. 7;

FIG. 11 is an enlarged view at F of FIG. 7;

FIG. 12 is a schematic view of the hook and hook groove of the present invention;

FIG. 13 is a cross-sectional view of a feed tube of the present invention;

FIG. 14 is a cross-sectional view at G of FIG. 1;

FIG. 15 is a schematic view of the engagement of the actuator with the seal plate of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 15, a valve apparatus includes a pipe body 1, a feed end 11, a discharge pipe 3, a valve core 2, and a handle 12; the pipe body is a shell of the valve equipment, plays a role in protecting internal elements of the valve equipment, and also plays a role in fixing and supporting the switch and the discharge pipe; the discharge pipe is arranged in the middle of the pipe body, and the feed end is arranged at the lower end of the pipe body; the valve core is arranged in the pipe body, positioned at the upper end of the pipe body and clamped with the pipe body; the handle is arranged at the outer side of the upper end of the pipe body and is hinged with the upper cover body 16 of the pipe body, so that the handle can be turned up and down; the upper cover body is fixed on the pipe body and can rotate relative to the pipe body; a support rod 161 is formed by extending the upper cover body upwards, and the handle is hinged with the support rod, so that the handle can rotate relative to the tube body; the center inside the handle is also hinged with a connecting piece 17 which passes through the center of the upper cover body and is connected with the valve core, and the connecting piece comprises a connecting rod 171 and a connecting block 172; the upper end of the connecting rod is hinged with the handle, and the connecting rod can rotate relative to the upper cover body and also can move up and down; therefore, the handle can drive the connecting piece to rotate and also can drive the connecting piece to move up and down while rotating relative to the pipe body; the connecting piece is tightly matched with the upper cover body, so that the connecting piece can rotate and move up and down relative to the upper cover body under the action of external force, and the upper cover body can play a role in fixing the connecting piece when no external force acts; the connecting rod is arranged at one side of the connecting block, a cavity is arranged in the connecting block, a large gear is arranged in the cavity, the large gear is connected to a rotating shaft in a key mode, and the rotating shaft is respectively connected with the upper surface bearing and the lower surface bearing of the cavity; the lower surface of the connecting rod extends downwards to form a rod body, the rod body is fixedly connected with the lower surface of the cavity, meanwhile, the rotation of the connecting rod is not influenced, a small gear is arranged on the rod body, and the small gear is meshed with the large gear, so that the connecting rod can be driven to rotate when rotating; the connecting rod can drive the connecting block to move up and down when moving up and down.

Specifically, the valve core comprises a discharge port 21, a shell 22, a bottom cover 23, a static ceramic valve plate 24, a dynamic ceramic valve plate 25, a dynamic valve body 26 and a rotating part 27; the shell is connected with the pipe body in a clamping and matching mode, so that the valve core is convenient to install in the pipe body and cannot move relative to the pipe body; the bottom cover 23 is in threaded connection with the shell and is used for sealing the shell and fixing elements inside the shell, and a channel connected with the liquid medicine storage barrel is arranged on the bottom cover; the static ceramic valve plate 24 is arranged on the bottom cover and cannot rotate relative to the bottom cover, and a sealing gasket is arranged between the static ceramic valve plate and the bottom cover so as to realize tight fit between the static ceramic valve plate and the bottom cover and prevent leakage; the static ceramic valve plate is also provided with a water inlet 241 and a liquid medicine port 242, the water inlet is connected with the water inlet pipe, and the liquid medicine port is connected with the liquid medicine pipe; the movable ceramic valve plate 25 is arranged on the static ceramic valve plate and can rotate a certain angle relative to the static ceramic valve plate while being tightly matched with the static ceramic valve plate; the movable ceramic valve plate is provided with a water inlet channel 251 communicated with the water inlet and a liquid medicine channel 252 communicated with the liquid medicine port, in order to ensure that when the movable ceramic valve plate rotates, at least one of the water inlet channels is always communicated with the water inlet, two limiting rods 243 are arranged on the static ceramic valve plate and the movable ceramic valve plate, and the limiting rods penetrate into the water inlet channel; the movable valve body 26 is arranged on the movable ceramic valve plate, the lower surface of the movable valve body extends downwards to form a rotation stopping lug which can be inserted into a rotation stopping groove 253 formed in the movable ceramic valve plate to realize rotation stopping matching between the movable valve body and the movable ceramic valve plate, so that the movable ceramic valve plate can be driven to rotate when the movable valve body rotates, a mixing cavity for liquid medicine and water to be mixed is formed in the movable valve body, a strip-shaped opening is formed in the side wall of the mixing cavity, and the opening is always communicated with a discharge hole formed in the side wall of the shell when the movable valve body rotates; the rotating member 27 includes a sealing cover 271, a shaft 272, a sliding block 273, a first limiting groove 274 and a first limiting block 275; the sealing cover 271 is arranged at the lower end of the rotating piece, can move up and down and rotate in the mixing cavity, and is used for opening and closing a water inlet channel on the movable ceramic valve plate and controlling the size of the liquid medicine; the sliding block 273 is positioned in a sliding groove 263 formed in the movable valve body and can move up and down along the sliding groove, and when the shaft body rotates, the sliding groove and the sliding block play a role in rotation stopping and matching, so that the rotating member rotates to drive the movable valve body to rotate, and the rotating member does not influence the movable valve body when moving up and down; the first limiting groove is formed by inwards sinking part of the outer surface of the shaft body, the connecting block is provided with a second limiting groove 173 matched with the first limiting block and a second limiting block 174 matched with the first limiting groove, during installation, the first limiting block is embedded into the second limiting groove, the second limiting block is embedded into the first limiting groove, so that the rotating piece can be driven to move up and down when the connecting block moves up and down, and the rotating piece can be driven to rotate when the connecting block rotates; because a discharge pipe 14 is arranged in the pipe body, the discharge pipe is arranged at one side close to the discharge pipe 3, and a second arc-shaped pipe 15 is connected between the discharge port and the discharge pipe, the valve core is arranged at the left side far away from the discharge pipe in the pipe body and deviates from the center of the pipe body; and through the setting of connecting rod and connecting block, realized the control of handle to the case of deviating from the body center.

In order to enable the valve equipment to be suitable for areas with more impurities in materials, an impurity removing device is arranged in the valve equipment and comprises a filtering structure and a discharging structure; specifically, the discharge pipe 3 comprises a discharge nozzle 31, a filter screen member 32, a connecting portion 33, a liquid medicine passage 34, a feed inlet 35 and a discharge pipe 36; the discharging structure comprises a discharging port 41, a sealing plate 42, a scraper 43 and a transmission device; the filter screen piece is made of metal materials, so that impurities in the material can be effectively filtered; the discharge port is arranged between the connecting part and the pipe body, a first arc-shaped pipe 44 is connected below the connecting part, and the first arc-shaped pipe is connected with a discharge pipe 14 arranged in the pipe body, so that impurities entering the discharge pipe enter the discharge pipe after passing through the first arc-shaped pipe and are discharged; the first arc-shaped pipe plays a better transition role, the common linear pipeline cannot convert potential energy into kinetic energy, and impurities are easy to accumulate in the common pipeline and cannot be taken away by liquid medicine due to friction force between the impurities and the pipeline; the arc-shaped arrangement enables the liquid medicine flowing into the pipeline to be converted into kinetic energy in potential energy, the liquid medicine can better flow along the arc-shaped pipeline, impurities falling into the pipeline are flushed into the discharge pipe, and the problem that the impurities are accumulated in the pipeline to cause blockage is avoided; the sealing plate 42 is arranged on the discharge port 41, so that the discharge port can be sealed by the sealing plate when the impurities do not need to be discharged, and the waste of material resources caused by leakage of liquid medicine is avoided; the sealing plate comprises a baffle part 421 and a movable part 422, the baffle part is a square plate and plays a role in sealing the discharge port, the pipe body is provided with a movable groove 13 for mounting the movable part, and the movable part can slide left and right in the movable groove under the action of the transmission device so as to drive the baffle part to slide left and right, so that the discharge port can be opened and closed by the sealing plate, and the structure is simple; in order to prevent the movable part from falling off the movable groove, the two limiting convex parts are arranged on the movable groove, so that the movable part cannot fall off the movable groove, and meanwhile, the thickness of the baffle part is set to be smaller than the distance between the two limiting convex parts, so that the limiting convex parts cannot influence the movement of the baffle part; a baffle groove 332 is formed in the connecting part 33, the size and the shape of the baffle groove 332 are matched with the right end of the baffle part, so that when the sealing plate seals the outlet, the baffle part is just embedded into the baffle groove, the baffle part seals the outlet better, and meanwhile, the baffle groove and the movable groove play a role in supporting and fixing the baffle part, and the baffle part is prevented from being bent due to material pressure, so that the baffle part cannot be matched with a scraping part or cannot seal the outlet; the scraping element 43 is made of plastic material, and comprises a movable surface 431, a convex surface 432, a concave surface 433 and a fixed portion 434; the movable surface 431 is in close contact with the baffle plate part, so that when the baffle plate part moves, the movable surface is tightly attached to the upper surface of the baffle plate part to move, impurities attached to the upper surface of the baffle plate part are all scraped, the baffle plate part is prevented from bringing the impurities into the movable groove to cause the blockage of the movable groove by the impurities or cause the blockage of the transmission device by the impurities, and the normal operation of the sealing plate is ensured; the movable surface scrapes off impurities on the upper surface of the baffle plate part, so that the impurities are better discharged; through the arrangement of the convex surface and the concave surface, the convex surface faces downwards, the concave surface faces upwards, so that impurities are scraped along the concave surface by the scraping part, the impurities can be more conveniently scraped by the scraping part, the material pressure acts on the concave surface due to the upward concave surface, the movable surface is further pressed on the baffle plate part, the impurity scraping effect is better achieved, and meanwhile, the sealing and leakage-proof effects are achieved; when the scraping piece interacts with the baffle plate part, the scraping piece is easy to deform under the action of friction force, so that the scraping piece cannot be tightly attached to the baffle plate part, and the impurity scraping effect of the scraping piece is influenced; the curvature of the convex surface is set to be larger than that of the concave surface, so that the scraping piece is not easy to deform, the scraping piece is ensured to be always tightly matched with the baffle plate part, and the good impurity scraping effect and the good discharge port sealing effect are achieved; the fixing part 434 of the scraper plays a role of fixing, the fixing part on the left side is installed on the pipe body, a groove for fixing the fixing part is formed in the pipe body, the fixing part on the right side is fixed on the connecting part of the discharge pipe, a groove for fixing the fixing part is also formed in the connecting part, and a lug 4342 is further arranged on the fixing part on the right side, is formed by extending outwards from the outer surface of the fixing part and is integrally formed with the fixing part; the connecting part is provided with a clamping groove 331 corresponding to the convex block, when the scraping piece is installed, only the fixing part on the left side of the scraping piece is embedded into the groove, and then the fixing part on the right side is embedded into the groove, so that the convex block is embedded into the clamping groove, the scraping piece is fixed, meanwhile, the scraping piece is convenient to disassemble, and the scraping piece can be conveniently replaced after aging or abrasion; and a mounting groove 4341 is formed in the fixing part, and a rubber ring is mounted in the mounting groove, so that the rubber ring is fixed in the mounting groove, the rubber ring plays a role in sealing, liquid medicine and impurities cannot leak out from a gap between the scraper and the discharge pipe and the pipe body, and the effective work of the impurity removing device is ensured.

Specifically, the transmission device comprises an expansion link 61, a sleeve 62, a reset member 63, a transmission rod 64 and a gear assembly, wherein the gear assembly comprises a first transmission gear 65, a second transmission gear 66, a third transmission gear 67, a fourth transmission gear 68, a transmission shaft 69 and a second rack 423; a cavity is arranged in the tube body 1, and the transmission device is arranged in the cavity; the upper end of the telescopic rod 61 penetrates through a through hole formed in the cavity to be in contact with the handle, and the lower end of the telescopic rod is wrapped by the sleeve 62, so that the telescopic rod can only slide up and down in the sleeve without deflection; a reset piece 63 is arranged in the sleeve and is a spring, the upper end of the spring is clamped with the bottom surface of the telescopic rod, and the lower end of the spring is clamped with the bottom surface in the sleeve; in order to prevent the telescopic part from falling out of the cavity or the sleeve, the side surface of the middle part of the telescopic part extends outwards to form an anti-falling part; a first rack 611 is arranged on the telescopic rod below the anti-falling part, the first rack is meshed with the first transmission gear, the rack only occupies one section of the middle part of the telescopic rod, and the lower end of the telescopic rod still has a rod body without the rack; the first transmission gear is mounted on the transmission shaft 69 and is in key connection with the transmission shaft; the second transmission gear is also arranged on the transmission shaft and is connected with the transmission shaft key; the third transmission gear is arranged on the transmission rod and is in key connection with the transmission rod, and the third transmission gear is meshed with the second transmission gear; the fourth transmission gear is also arranged on the transmission rod and is in key connection with the transmission rod; the second rack is arranged on the movable part 422, and the fourth transmission gear is meshed with the second rack; the upper end of the transmission rod 64 is connected with a side wall bearing of the cavity, and the lower end of the transmission rod is connected with a bottom surface bearing of the cavity; the density of the upper teeth of the first transmission gear is greater than that of the upper teeth of the second transmission gear; when a user needs to use the valve device, the telescopic rod can rise under the action of the spring only by slightly lifting the handle, because the first rack and the first transmission gear are meshed at the moment, the lifting of the telescopic rod drives the first transmission gear to rotate, thereby driving the transmission shaft to transmit, the rotation of the transmission shaft drives the rotation of a second transmission gear arranged on the transmission shaft, the rotation of the second transmission gear drives the rotation of a third transmission gear meshed with the second transmission gear, and as the third transmission gear is connected with the transmission rod in a key way, the transmission rod also rotates along with the rotation of the third transmission gear, so as to drive the rotation of a fourth transmission gear arranged on the transmission rod, and a second rack arranged on the sealing plate is meshed with the fourth transmission gear, the rotation of the fourth transmission gear drives the sealing plate to move, so that the outlet is closed; meanwhile, the lifting of the handle drives the rotating piece 27 to lift, so that the discharging is realized; after the sealing plate seals the outlet, the first transmission gear is separated from the first rack due to the short length of the first rack, and the sealing of the sealing plate on the outlet cannot be influenced even if the telescopic piece continuously rises along with the handle; and when the handle descends from the highest place, because first drive gear is located the position that does not have the rack on the telescopic link, so the telescopic link is along with the handle when descending, also can not influence the sealed of closing plate to the discharge port, until after the load is very little, just first rack contacts and meshes with first drive gear again, and the handle descends again and can drive the closing plate and remove and open the discharge port promptly, and the case is also no longer ejection of compact simultaneously.

Specifically, the discharge pipe 3 comprises a discharge nozzle 31, a connecting part 33, a liquid medicine passage 34, a feed inlet 35 and a discharge pipe 36; the discharging nozzle 31 is arranged below the discharging pipe 36 and communicated with the liquid medicine channel 34, and a foam maker is arranged in the discharging nozzle; the liquid medicine channel is arranged in the discharge pipe; the connecting part is formed by extending the outer surface of the pipe body outwards; in order to prevent the impurities filtered by the filter screen member 32 from accumulating in the pipeline, the bottom 341 of the liquid medicine passage is formed as an inclined surface, the side of the inclined surface close to the discharging nozzle is high, and the side close to the discharging port is low, so that after the valve core is closed, the liquid medicine remained in the liquid medicine passage flows along the direction of the inclined surface facing the discharging port, and the impurities filtered by the filter screen member and the impurities attached to the filter screen member are flushed into the discharging port along the way; the connecting part is provided with a feed inlet 35 communicated with the pipe body, the discharge outlet 21 on the valve core is arranged at a position higher than the feed inlet, and the feed inlet and the discharge outlet are connected through a second arc-shaped pipe 15, so that when the valve core is closed, residual liquid medicine is flushed down along the second arc-shaped pipe, and impurities on the filter screen piece are further flushed down; the second arced tube includes a first arced segment 151, a second arced segment 152, a third arced segment 153, a fourth arced segment 154, and a sloped segment 155; the first arc-shaped section is connected with the discharge hole, the second arc-shaped section is connected with the first arc-shaped section through a vertical section, the third arc-shaped section is connected with the second arc-shaped section through an inclined plane section, and the fourth arc-shaped section is connected with the third arc-shaped section through a material flat section; the potential energy of the liquid medicine is changed into the kinetic energy through the second arc-shaped pipe, the flowing direction is changed, and the liquid medicine is endowed with a rotating force under the action of the second arc-shaped section and the third arc-shaped section, so that impurities attached to the filter screen piece are more easily washed down; the diameter of the feed inlet is smaller than that of the connecting part, so that the pressure and the flow rate of the liquid medicine entering the connecting part from the feed inlet are reduced, and impurities contained in the liquid medicine are filtered more easily when the liquid medicine passes through the filter screen piece.

In order to facilitate the installation, cleaning and replacement of the filter screen element, a detachable connection structure is adopted between the discharge pipe and the connection part, and a mode of combining a buckle connection and a plug pin connection is adopted in the embodiment; specifically, a hook 333 is formed by extending outward a right side surface of the connecting portion 33, and the hook includes a rod portion 3331, a hook portion 3332 and a through hole 3333; the left side surface of the discharge pipe 36 is provided with a hook groove 361 matched with the hook, the hook groove is formed by inwards sinking the left side surface of the discharge pipe, and comprises a transverse channel 3612, an annular channel 3611 and a slot 3613; during assembly, the discharge nozzle faces outwards, the clamping hook is aligned with the transverse channel, the clamping hook is inserted into the transverse channel, the discharge pipe is rotated by 90 degrees, the clamping hook moves along the annular channel until the discharge nozzle faces downwards, and the clamping hook is clamped by the hook groove; in order to prevent the discharging pipe from rotating when in use, the discharging pipe is provided with an inserting groove 3613, and the clamping hook is provided with a through hole 3333 corresponding to the inserting groove 3613; the plug pin can be inserted into the slot and is in threaded connection with the slot after passing through the through hole, so that the plug pin plays a role in preventing the discharging pipe from rotating while the plug pin is fixed; the filter element 32 includes a filter 321, a fixing ring 322 and a fixing groove 323; the size and the shape of the inner surfaces of the filter screen and the fixing ring are the same as those of the liquid medicine channel at the installation position of the filter screen piece, so that the surface of the liquid medicine channel can still be kept flat even if the filter screen piece is installed, and further, the liquid medicine can wash away impurities; in order to install the filter element, a first assembling groove 334 is arranged on the connecting part, and is formed by inwards sinking the surface of the inner wall of the connecting part; the connecting part is also provided with two inserting blocks 335 matched with the fixing grooves, when the filter screen element is installed, the fixing grooves are only required to be aligned with the inserting blocks to be installed, the inserting blocks and the fixing grooves can form rotation stopping matching, so that the filter screen element cannot deflect in the installation and use processes, and meanwhile, the matching of the inserting blocks and the fixing grooves also plays a role in positioning, so that the installation of the filter screen element is facilitated, the smoothness of the surface of a liquid medicine channel is further ensured, and impurities can be better flushed into a discharge port by liquid medicine; in order to ensure that the connecting part and the discharge pipe can be detached and have good sealing performance and avoid leakage of impurities and materials, the left side and the right side of the filter screen piece are respectively provided with a sealing element 336, the sealing element on the left side is arranged in the first assembling groove, the sealing element on the right side is arranged on the discharge pipe, the discharge pipe is provided with a second assembling groove 362 for installing the sealing element, and the second assembling groove is formed by inwards sinking the surface on the left side of the discharge pipe; the first assembling groove and the second assembling groove are mutually attached; the assembly groove is also provided with a sealing groove 337 for embedding a sealing element, so that the sealing element can be better fixed in the sealing groove and also plays a role in enhancing the sealing effect; the seal includes a convex edge 3361, a spherical convex portion 3362, a first annular projection 3363, a second annular projection 3364, and a concave portion 3365; the convex edge and the annular bulges are formed by outwards extending the outer surface of the sealing piece, the concave part is arranged between the two annular bulges so as to facilitate the elastic deformation of the annular bulges, and the spherical convex part is formed by outwards extending the end part of the convex edge, so that the sealing effect of the sealing piece is better and a fixing effect is also realized; during the installation, aim at the seal groove with spherical convex part on the sealing member earlier, press the sealing member and make spherical convex part take place elastic deformation, extrude into the seal groove with spherical convex part and chimb, after arriving the bottom, spherical convex part resumes former shape and plays the fixed action, aim at the inserted block with the fixed slot on the filter screen spare again, thereby install the filter screen spare into first assembly groove, make solid fixed ring closely cooperate with annular bulge, again on the second assembly groove after a sealing member of same installation, install the discharging pipe on connecting portion, annular bulge on two sealing members all extrudees with solid fixed ring each other, accomplish the installation of sealing member and filter screen spare, otherwise can dismantle.

In order to prevent the impurities discharged from the impurity removing device from blocking the discharging channel, a discharging pipe 18 is screwed below the discharging pipe 14, and an impurity collecting device is installed in the discharging pipe, and the impurity collecting device comprises a filter cartridge 51 and a transparent end cover 52; the feeding pipe 18 comprises a feeding pipe 181, a transverse pipe section 182, a transparent sealing cover 183, a positioning groove 184 and a discharging pipe 185; wherein the filter cartridge is arranged in the transverse pipe section and is tightly matched with the inner wall of the transverse pipe section; the right end of the filter cylinder is provided with a transparent end cover which is made of an acrylic plate; a feed inlet 511 is arranged on one side of the filter cartridge close to the transparent end cover and is aligned with the feed pipe, so that impurities and materials in the feed pipe directly enter the filter cartridge through the feed inlet; in order to prevent mud materials from entering the filter cartridge due to deflection of the filter cartridge, the transverse pipe section is provided with a positioning groove, and the transparent end cover is provided with a positioning bump 521 which can be embedded into the positioning groove, so that rotation stopping matching between the filter cartridge and the transverse pipe section is realized; the right side of the transverse pipe section is provided with an opening which is convenient for mounting the filter cartridge, the opening is sealed by a transparent sealing cover 183, and the transparent sealing cover is connected with the transverse pipe section in a buckling way and is tightly matched with the transparent end cover; a discharge pipe is connected below one side of the transverse pipe section, which is far away from the transparent sealing cover.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. A valve device for diluting liquid medicine comprises a pipe body (1), a valve core (2) arranged in the pipe body (1), a discharge pipe (3) arranged on the pipe body (1) and a handle (12) capable of moving back and forth; an upper cover body (16) is arranged on the pipe body (1), and the handle (12) is movably connected with the upper cover body (16); a feed inlet (35) is formed in the discharge pipe (3), and the valve core (2) is communicated with the feed inlet (35) through a second arc-shaped pipe (15); a discharge pipe (14) is arranged between the valve core (2) and the pipe body (1); the method is characterized in that: the handle (12) is connected with the valve core (2) through a connecting piece (17); the connecting piece (17) comprises a connecting rod (171) movably connected with the upper cover body (16) and a connecting block (172) detachably connected with the valve core (2); the connecting rod (171) is movably connected with the connecting block (172); the valve core (2) comprises a shell (22) fixedly connected with the inner wall of one side, far away from the discharge pipe (3), of the pipe body (1), a bottom cover (23) fixedly connected with the shell (22), a static ceramic valve plate (24) tightly matched with the bottom cover (23), a rotatable movable ceramic valve plate (25), a movable valve body (26) in rotation-stopping fit with the movable ceramic valve plate (25), a rotating piece (27) capable of moving up and down and a discharge hole (21) formed in the shell (22); the rotating piece (27) comprises a sealing cover (271) matched with the movable ceramic valve plate (25), a shaft body (272) rotatably connected with the shell (22), a sliding block (273) arranged on the shaft body (272), a first limiting groove (274) formed by inwards recessing part of the outer surface of the shaft body (272) and a first limiting block (275) arranged on the shaft body (272); a sliding groove (263) for moving the sliding block (273) is arranged on the movable valve body (26); a second limiting groove (173) matched with the first limiting block (275) is formed in the connecting block (172), and a second limiting block (174) matched with the first limiting groove (274) is formed in the connecting block (172);

the movable ceramic valve plate (25) comprises a water inlet channel (251) communicated with the water inlet, a liquid medicine channel (252) communicated with the liquid medicine port and a rotation stopping groove (253) in rotation stopping fit with the movable valve body (26);

the static ceramic valve plate (24) comprises a water inlet (241) connected with a water inlet pipe, a liquid medicine port (242) connected with a liquid medicine pipe and a limiting rod (243) in rotation stopping fit with the movable ceramic valve plate (25);

the discharge structure comprises a discharge port (41), a sealing plate (42), a scraper (43) and a transmission device;

the transmission device comprises a telescopic rod (61), a sleeve (62), a reset piece (63), a transmission rod (64) and a gear assembly, wherein the gear assembly comprises a first transmission gear (65), a second transmission gear (66), a third transmission gear (67), a fourth transmission gear (68), a transmission shaft (69) and a second rack (423); a cavity is arranged in the tube body (1), and the transmission device is arranged in the cavity; the upper end of the telescopic rod (61) penetrates through a through hole formed in the cavity to be in contact with the handle (12), and the lower end of the telescopic rod is wrapped by the sleeve (62), so that the telescopic rod can only slide up and down in the sleeve (62) and cannot deflect; a reset piece (63) is arranged in the sleeve (62), the reset piece (63) is a spring, the upper end of the spring is clamped with the bottom surface of the telescopic rod, and the lower end of the spring is clamped with the bottom surface in the sleeve (62); the side surface of the middle part of the telescopic piece extends outwards to form an anti-drop part; a first rack (611) is arranged on the telescopic rod below the anti-falling part, the first rack is meshed with the first transmission gear (65), the rack only occupies one section of the middle part of the telescopic rod, and the lower end of the telescopic rod still has a rod body without the rack; the first transmission gear is arranged on the transmission shaft (69) and is connected with the transmission shaft key; the second transmission gear is also arranged on the transmission shaft and is connected with the transmission shaft key; the third transmission gear is arranged on the transmission rod and is in key connection with the transmission rod, and the third transmission gear is meshed with the second transmission gear; the fourth transmission gear is also arranged on the transmission rod and is in key connection with the transmission rod; the second rack is arranged on the movable part (422), and the fourth transmission gear is meshed with the second rack; the upper end of the transmission rod (64) is connected with the side wall bearing of the cavity, and the lower end of the transmission rod is connected with the bottom surface bearing of the cavity.

2. A valve device for diluting a medical fluid according to claim 1, wherein: the second arc-shaped pipe (15) comprises a first arc-shaped section (151) connected with the discharge hole (21), a fourth arc-shaped section (154) connected with the feed hole (35), an inclined plane section (155), a second arc-shaped section (152) arranged between the first arc-shaped section (151) and the inclined plane section (155) and a third arc-shaped section (153) arranged between the fourth arc-shaped section (154) and the inclined plane section (155).