Self-cleaning drug-resistant anti-cracking medical tee joint valve

Abstract

The application discloses a self-cleaning drug-resistant anti-cracking medical three-way valve and belongs to the technical field of medical three-way valves. The three-way valve made of polyamide material can resist cracking caused by drug action and frequent operation. Cleaning liquid is introduced into the interiors of three liquid guide pipe orifices through valve holes, so that the blades outside the axle are in contact with the cleaning liquid. The multiple blades are pushed by the impact force of water flow to rotate the axle. The connecting shaft drives the scraping strip to rotate through the sliding cylinder and the sliding rod. The scraping strip can scrape and brush the inner wall of the liquid guide pipe orifice. The sliding rod is supported by the elastic force of the first spring in the sliding cylinder, so that the sliding rod drives the scraping strip to adhere to the inner wall of the liquid guide pipe orifice. The scraping strip can be self-adaptively adjusted in position according to the shape of the inner wall of the liquid guide pipe orifice, so that the stability of the contact between the scraping strip and the inner wall of the liquid guide pipe orifice is improved. The cleaning liquid can flush the inner wall of the liquid guide pipe orifice. Through the mutual cooperation between scraping and flushing, the purpose of comprehensively and uniformly cleaning the inner wall of the three-way valve is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical three-way valves, in particular to a self-cleaning drug-resistant anti-cracking medical three-way valve. BACKGROUND

[0002] Medical three-way valves are generally used with other medical devices as intravenous injection or infusion transfusion for human body, and are widely used in the medical field. The three-way valve has a medicine inlet channel, a liquid discharge detection channel and a liquid passage, which are connected to each other. In order to prevent cracking of the three-way valve, polyamide material is used to ensure that there is no cracking and liquid leakage during long-term infusion, and it has good drug resistance and anti-cracking performance.

[0003] At present, the traditional medical three-way valve often has residual drugs, blood, etc. after use. For example, during infusion, when switching different infusion channels or after infusion is completed, a small amount of liquid is easily left in the internal channel of the three-way valve, and the internal channel is narrow. When the channel is flushed with a syringe, it is difficult to ensure that all corners and gaps can be flushed due to the blockage of the internal structure. The dirt attached to the inner wall of the channel is difficult to clean completely, or the three-way valve is removed from the connected pipeline for cleaning, which is extremely inconvenient to operate. SUMMARY

[0004] The present application aims to provide a self-cleaning drug-resistant anti-cracking medical three-way valve to solve the problem of residual drugs, blood, etc. after use of the traditional medical three-way valve as described in the background. For example, during infusion, when switching different infusion channels or after infusion is completed, a small amount of liquid is easily left in the internal channel of the three-way valve, and the internal channel is narrow. When the channel is flushed with a syringe, it is difficult to ensure that all corners and gaps can be flushed due to the blockage of the internal structure. The dirt attached to the inner wall of the channel is difficult to clean completely, or the three-way valve is removed from the connected pipeline for cleaning, which is extremely inconvenient to operate.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] The utility model provides a kind of self-cleaning type drug resistance prevents cracking medical three-way valve, including three-way valve body, three liquid guide pipe mouths are fixedly installed outside the three-way valve body, and the inside of three-way valve body is equipped with valve core, the position of valve core outside corresponding three liquid guide pipe mouths is respectively opened with valve hole, the opening of valve hole and liquid guide pipe mouth is communicated, cleaning assembly is fixedly installed in the inside of liquid guide pipe mouth, the bottom of valve core is connected with booster assembly, booster assembly penetrates three-way valve body and is fixedly installed in the bottom of three-way valve body, and the top of booster assembly is communicated with three valve holes, the end of liquid guide pipe mouth away from valve core is equipped with blocking protective sleeve, the bottom of three liquid guide pipe mouths is connected with collection assembly, the top of collection assembly is located in the bottom of liquid guide pipe mouth away from the side of valve core, the top of valve core is fixedly connected with deflection assembly, deflection assembly is arranged at the top of three-way valve body, the outside of deflection assembly is equipped with fixed ring, the outside of the top of fixed ring is fixedly connected in three-way valve body, a plurality of clamping grooves are equidistantly opened in the top of fixed ring, the upper of deflection assembly is connected with adjusting assembly, the bottom of adjusting assembly is clamped in clamping groove.

[0007] As a further scheme of the utility model, the cleaning assembly includes an axle, which is located inside the liquid guide pipe mouth and close to the valve core. The axle's axis corresponds to the position of the valve hole. A plurality of blades are fixedly connected outside the axle, and the blades are obliquely arranged outside the axle. An axle seat is rotatably connected to one end of the axle close to the valve core. The axle seat is fixed to the inner wall of the liquid guide pipe mouth by a fixed rod. A connecting shaft is fixedly connected to the end of the axle away from the valve core.

[0008] As a further scheme of the utility model, two groups of slide cylinders are fixedly connected outside the connecting shaft, and each group has two slide cylinders. A slide rod is slidably connected inside each slide cylinder. A first spring is fixedly connected to one end of the slide rod. The end of the first spring is fixed to the inner wall of the slide cylinder. The ends of the corresponding two slide rods are fixedly connected to a scraping strip. The scraping strip is lapped with the inner wall of the liquid guide pipe mouth.

[0009] As a further scheme of the utility model, the booster assembly includes a micro pump. A plurality of mounting screws are arranged outside the micro pump. The micro pump is fixed to the bottom of the three-way valve body by the mounting screws. A cleaning liquid connecting pipe is connected to the water inlet end of the bottom of the micro pump. A one-way valve is connected to the water inlet end of the top of the micro pump, penetrates the bottom of the three-way valve body, and is connected to the top of the one-way valve. A rotating joint is connected to the top of the one-way valve and is clamped to the bottom of the valve core. A water guide head is arranged at the top of the rotating joint and is communicated with the three valve holes.

[0010] As a further scheme of the present application, the collecting assembly comprises a waste liquid collecting barrel, a drain valve pipe is connected to the bottom of the waste liquid collecting barrel, three guide pipes with different lengths are connected to the top of the waste liquid collecting barrel, the top end of the guide pipe is communicated with the bottom of the liquid guide pipe mouth near one side of the blocking protective sleeve, and a flow stop valve is installed on the outside of the guide pipe near the liquid guide pipe mouth.

[0011] As a further scheme of the present application, the deflection assembly comprises a valve rod, a sliding groove is arranged at the center of the top of the valve rod, the adjusting assembly is clamped in the sliding groove, the sliding groove is designed in a rectangular shape, the bottom end of the valve rod is fixed with the top of the valve core, a blocking ring is fixed below the outer wall of the valve rod, and the blocking ring is embedded in the inner part of the three-way valve body.

[0012] As a further scheme of the present application, the adjusting assembly comprises a handle, a limiting block is fixedly connected at the center of the bottom of the handle, the limiting block is designed in a rectangular shape and is slidingly connected in the sliding groove, an extension handle is arranged on the outer wall of the handle, four clamping rods are fixedly connected at the four corners of the bottom of the handle, the clamping rods penetrate through the valve rod and are clamped in the clamping grooves, the included angle between two adjacent clamping grooves is forty-five degrees, a second spring is sleeved on the clamping rod, the top end of the second spring is fixed with the bottom of the handle, the bottom end of the second spring is fixed with the top of the valve rod, a limiting ring is fixedly connected to the outer wall of the clamping rod, and the limiting ring is located between the valve rod and the three-way valve body.

[0013] As a further scheme of the present application, the valve rod is fixedly connected with two blocking strips, and two vertical plates are fixedly connected to the edge of the top of the three-way valve body, the vertical plate and the blocking strip are both designed in a circular arc shape, and the vertical plate and the blocking strip are concentrically designed.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. In this invention, when cleaning the three-way valve, a micro pump operates and draws cleaning fluid through a connecting pipe. The cleaning fluid passes through the micro pump, a one-way valve, and a rotary joint, and is discharged from the guide head. The cleaning fluid discharged from the guide head is introduced into the three guide pipe ports through the valve holes in the valve core, causing the blades outside the wheel axle to contact the cleaning fluid. Because the blades are inclined and arranged outside the wheel axle, the multiple blades are driven by the impact force of the water flow to rotate the wheel axle. The wheel axle then drives the connecting shaft to rotate, which in turn drives the scraper to rotate through the slide cylinder and slide rod. Because the scraper contacts the inner wall of the guide pipe port, it can scrape the inner wall of the guide pipe port during rotation, removing the residue attached to the inner wall of the guide pipe port. During the rotation of the scraper, the elastic force of the first spring inside the slide cylinder moves the slide rod. The support system allows the sliding rod to drive the scraper to adhere to the inner wall of the liquid guide tube opening. The scraper can adaptively adjust its position according to the shape of the inner wall, thus improving the stability of the contact between the scraper and the inner wall and ensuring effective scraping. While the scraper scrapes the inner wall of the liquid guide tube opening, the cleaning fluid also flushes it. Powered solely by the impact of the water flow, no additional power equipment is needed to control the scraping and flushing. The continuous impact of the water flow effectively cleans the inner wall of the liquid guide tube opening, reducing the accumulation of dirt. The dirt generated by scraping and flushing enters the waste liquid collection tank through the check valve and guide pipe. Through the coordinated scraping and flushing, the inner wall of the three-way valve is thoroughly and evenly cleaned.

[0016] 2. In this invention, by holding the handle in the adjusting assembly and lifting the handle, the bottom limiting block moves upward within the slide groove. Simultaneously, the handle moves multiple locking rods upward, disengaging them from the locking groove at the top of the valve stem. Turning the handle causes the valve stem to rotate via the limiting block and slide groove. The valve stem then rotates the retaining ring and valve core. The retaining ring is embedded inside the three-way valve body, allowing it to rotate within the body and vertically limit the valve stem's movement, thus improving the stability of the valve stem's rotation of the valve core. When the handle rotates 45 degrees, the three valve holes in the valve core are misaligned with the ends of the three liquid guide pipe openings, allowing the valve core to seal these openings. After releasing the handle... The second spring pulls the handle downwards, causing multiple locking rods to engage with the slots on the valve stem, thus locking the handle in place and preventing it from shifting due to external forces, which could affect the stability of the three-way valve. When the handle is lifted and rotated again, the valve stem causes the valve core to continue to deflect until the stop bar outside the valve stem contacts the vertical plate at the top edge of the three-way valve body. The vertical plate blocks the stop bar, preventing the valve stem from rotating. At this point, the two valve holes in the valve core are connected to the two liquid guide pipe ports, thus preventing adjustment deviations in the valve core from affecting the connection between the valve holes and the liquid guide pipe ports, and improving the accuracy of the three-way valve. Attached Figure Description

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the following embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort based on these drawings.

[0018] Figure 1 A schematic structural view of the present application;

[0019] Figure 2 A schematic structural view of the present application;

[0020] Figure 3 A schematic structural view of the present application;

[0021] Figure 4 A schematic structural view of the present application;

[0022] Figure 5 A schematic structural view of the present application; Figure 4 A schematic structural view of the present application;

[0023] Figure 6 A schematic structural view of the present application;

[0024] Figure 7 A schematic structural view of the present application;

[0025] Figure 8 A schematic structural view of the present application;

[0026] Figure 9 A schematic structural view of the present application.

[0027] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0028] 1, three-way valve body; 2, liquid guide pipe opening; 3, valve core; 4, valve hole; 5, cleaning assembly; 501, wheel shaft; 502, blade; 503, shaft seat; 504, connecting shaft; 505, sliding cylinder; 506, sliding rod; 507, first spring; 508, scraping strip; 6, pressure boosting assembly; 601, micro pump; 602, cleaning liquid connection pipe; 603, mounting screw; 604, one-way valve; 605, rotary joint; 606, water guide head; 7, plugging protective sleeve; 8, collection assembly; 801, waste liquid collection barrel; 802, through pipe; 803, flow stop valve; 804, liquid discharge valve pipe; 9, deflection assembly; 901, valve rod; 902, sliding groove; 903, blocking ring; 904, blocking strip; 10, fixing ring; 11, clamping groove; 12, vertical plate; 13, adjusting assembly; 131, handle; 132, limiting block; 133, clamping rod; 134, limiting ring; 135, second spring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0030] Please refer to Figures 1-5 The present application provides a technical solution:

[0031] The self-cleaning drug-resistant anti-cracking medical tee valve comprises a tee valve body 1, three liquid guide pipe openings 2 are fixedly installed outside the tee valve body 1, a valve core 3 is arranged inside the tee valve body 1, valve holes 4 are respectively arranged outside the valve core 3 corresponding to the positions of the three liquid guide pipe openings 2, the valve holes 4 are in communication with the openings of the liquid guide pipe openings 2, a plugging protective sleeve 7 is arranged at the end of the liquid guide pipe opening 2 away from the valve core 3, and a cleaning assembly 5 is fixedly installed inside the liquid guide pipe opening 2. The inside of the tee valve is scraped and flushed by the cleaning assembly 5, the cleaning assembly 5 is driven to work only by relying on the impact force of the water flow as a power source, additional power equipment is not needed to control the scraping and flushing work, and the cleaning assembly 5 effectively performs omnibearing cleaning on the inner wall of the liquid guide pipe opening 2 under the continuous impact of the water flow.

[0032] As a further solution of the present application, the cleaning assembly 5 comprises an axle 501, the axle 501 is located inside the liquid guide pipe opening 2 and close to one side of the valve core 3, the axis of the axle 501 corresponds to the position of the valve hole 4, a plurality of blades 502 are fixedly connected outside the axle 501, and the blades 502 are obliquely arranged outside the axle 501. An axle seat 503 is rotationally connected to one end of the axle 501 close to the valve core 3, the axle seat 503 is fixed to the inner wall of the liquid guide pipe opening 2 through a fixing rod, and a connecting shaft 504 is fixedly connected to the end of the axle 501 away from the valve core 3. The blades 502 outside the axle 501 are in contact with the cleaning liquid. Since the blades 502 are obliquely arranged outside the axle 501, the plurality of blades 502 are pushed to rotate the axle 501 under the impact of the water flow, the axle 501 drives the connecting shaft 504 to rotate, and then the blades 502 are driven to rotate by relying on the impact force of the water flow as a power source.

[0033] Two groups of slide cylinders 505 are fixedly arranged outside the connecting shaft 504, the number of each group of slide cylinders 505 is two, a slide rod 506 is slidably connected to the end face inside the slide cylinder 505, a first spring 507 is fixedly connected to one end of the slide rod 506, and the end of the first spring 507 is fixed to the inner wall of the slide cylinder 505. The ends of the corresponding two slide rods 506 are fixedly connected to a scraping strip 508, and the scraping strip 508 is lapped with the inner wall of the liquid guide pipe opening 2.

[0034] The scraping strip 508 can scrape the inner wall of the liquid guide port 2 during rotation due to the contact between the scraping strip 508 and the inner wall of the liquid guide port 2, so that the residues adhered to the inner wall of the liquid guide port 2 are scraped off. During rotation of the scraping strip 508, the sliding rod 506 supports the scraping strip 508 to adhere to the inner wall of the liquid guide port 2 by the elastic force of the first spring 507 inside the sliding cylinder 505, and the scraping strip 508 can adaptively adjust the position according to the shape of the inner wall of the liquid guide port 2, thereby improving the stability of the contact between the scraping strip 508 and the inner wall of the liquid guide port 2 and improving the cleaning effect of the scraping strip 508 on the inner wall of the liquid guide port 2.

[0035] As shown in Figure 6 The bottom of the valve core 3 is connected with a booster assembly 6, the booster assembly 6 penetrates through the three-way valve body 1 and is fixedly installed at the bottom of the three-way valve body 1, and the top end of the booster assembly 6 is in communication with the three valve holes 4.

[0036] As a further scheme of the present application, the booster assembly 6 comprises a micro pump 601, a plurality of mounting screws 603 are arranged outside the micro pump 601, the micro pump 601 is fixed at the bottom of the three-way valve body 1 through the plurality of mounting screws 603, a cleaning liquid connecting pipe 602 is connected to the water inlet end at the bottom of the micro pump 601, a one-way valve 604 is connected to the water inlet end at the top of the micro pump 601 and penetrates through the bottom of the three-way valve body 1, a rotary joint 605 is connected to the top of the one-way valve 604, the rotary joint 605 is clamped at the bottom of the valve core 3, and a water guide head 606 is arranged at the top of the rotary joint 605 and is in communication with the three valve holes 4.

[0037] The cleaning liquid connecting pipe 602 draws cleaning liquid, the cleaning liquid passes through the micro pump 601, the one-way valve 604 and the rotary joint 605 and is discharged from the water guide head 606, the one-way valve 604 is used for guiding the cleaning liquid into the rotary joint 605 and preventing the cleaning liquid from flowing back to the micro pump 601, the cleaning liquid discharged from the water guide head 606 is guided into the interiors of the three liquid guide ports 2 through the valve holes 4 in the valve core 3, and the rotary joint 605 is arranged to ensure that the cleaning liquid can be normally guided into the valve holes 4 through the one-way valve 604 during rotation of the valve core 3.

[0038] By unscrewing the plurality of mounting screws 603 outside the micropump 601, the locking state between the micropump 601 and the three-way valve body 1 is released, the micropump 601 is pulled down, the water inlet end at the top of the micropump 601 is separated from the one-way valve 604, and the one-way valve 604 can guide the cleaning liquid into the rotary joint 605 and prevent the cleaning liquid from flowing back to the micropump 601. When the micropump 601 is installed, the water inlet end at the top of the micropump 601 is inserted into the one-way valve 604 and fixed at the bottom of the three-way valve body 1 by the plurality of mounting screws 603, so that the three-way valve body 1 and the micropump 601 can be separated and disassembled, and the micropump 601 can be freely selected for use or not use according to needs, thereby improving the use flexibility.

[0039] As shown in Figure 7 , the bottom of the three liquid guide pipe openings 2 is connected with a collection assembly 8, and the top end of the collection assembly 8 is located on the side of the bottom of the liquid guide pipe opening 2 away from the valve core 3.

[0040] As a further scheme of the present application, the collection assembly 8 comprises a waste liquid collection barrel 801, and the bottom of the waste liquid collection barrel 801 is connected with a liquid discharge valve pipe 804; the top of the waste liquid collection barrel 801 is connected with three liquid guide pipes 802 of different lengths, the top end of the liquid guide pipe 802 is connected with the side of the bottom of the liquid guide pipe opening 2 close to the sealing protective sleeve 7, and the liquid guide pipe 802 is provided with a flow stop valve 803 outside the position close to the liquid guide pipe opening 2.

[0041] The dirt generated by the cleaning assembly 5 scraping and flushing the inside of the three-way valve enters the waste liquid collection barrel 801 through the flow stop valve 803 and the liquid guide pipe 802, thereby achieving the purpose of centralized collection of the generated dirt, and when the dirt in the waste liquid collection barrel 801 is too much, the dirt can be discharged by opening the liquid discharge valve pipe 804 at the bottom of the waste liquid collection barrel 801, thereby improving the operation convenience.

[0042] As shown in Figures 8-9 , the top of the valve core 3 is fixedly connected with a deflection assembly 9, the deflection assembly 9 is arranged through the top of the three-way valve body 1, and the upper portion of the deflection assembly 9 is connected with an adjusting assembly 13.

[0043] As a further scheme of the present application, the deflection assembly 9 comprises a valve rod 901, the bottom end of the valve rod 901 is fixedly connected with the top of the valve core 3, the communication relationship between the different liquid guide pipe openings 2 is controlled by rotating the valve rod 901 and rotating the valve core 3. The lower portion of the outer wall of the valve rod 901 is fixedly connected with a retaining ring 903, the retaining ring 903 is embedded in the inside of the three-way valve body 1, so that the retaining ring 903 can rotate in the three-way valve body 1 and can vertically limit the valve rod 901, thereby improving the stability of the valve rod 901 driving the valve core 3 to rotate.

[0044] The adjusting assembly 13 comprises a handle 131, a limiting block 132 fixedly connected at the center of the bottom of the handle 131, and a sliding groove 902 in the center of the top of the valve rod 901 and in a rectangular design, and the limiting block 132 is in a rectangular design and is slidingly inserted into the sliding groove 902.

[0045] The valve rod 901 is externally provided with a fixing ring 10 fixedly connected to the outer side of the top of the three-way valve body 1, and a plurality of clamping grooves 11 are equidistantly formed in the top of the fixing ring 10; the outer wall of the handle 131 is provided with an extension handle, and a clamping rod 133 is fixedly connected to each of the four corners of the bottom of the handle 131, the clamping rod 133 penetrates through the valve rod 901 and is clamped in the clamping groove 11, and the included angle between any two adjacent clamping grooves 11 is forty-five degrees. The clamping rod 133 is sleeved with a second spring 135, the top end of the second spring 135 is fixed to the bottom of the handle 131, the bottom end of the second spring 135 is fixed to the top of the valve rod 901, and the outer wall of the clamping rod 133 is fixedly connected with a limiting ring 134 located between the valve rod 901 and the three-way valve body 1.

[0046] The handle 131 is pulled to drive the valve rod 901 to rotate through the limiting block 132 and the sliding groove 902, and the limiting block 132 is in a rectangular design, so that the limiting block 132 moves in the sliding groove 902 without affecting the rotation of the handle 131 and the valve rod 901, and the valve rod 901 conveniently drives the blocking ring 903 and the valve core 3 to rotate. The handle 131 is driven downward by the pulling force of the second spring 135, so that the plurality of clamping rods 133 are clamped into the clamping grooves 11 on the valve rod 901, the position of the handle 131 is locked, the handle 131 is prevented from being deviated by external force to affect the stability of the three-way valve, and the limiting ring 134 outside the clamping rod 133 prevents the clamping rod 133 from being separated from the valve rod 901, thereby improving the stability of the rotation of the valve rod 901 driven by the handle 131 through the clamping rod 133.

[0047] As a further scheme of the present application, the outer wall of the valve rod 901 is fixedly connected with two blocking strips 904, and the edge of the top of the three-way valve body 1 is fixedly connected with two vertical plates 12, the vertical plate 12 and the blocking strip 904 are both in a circular arc shape, and the vertical plate 12 and the blocking strip 904 are concentrically designed.

[0048] During the rotation of the valve rod 901 and the valve core 3, when the blocking strip 904 outside the valve rod 901 contacts the vertical plate 12 at the edge of the top of the three-way valve body 1, the vertical plate 12 blocks the blocking strip 904, so that the valve rod 901 cannot rotate, and at this time, the two valve holes 4 in the valve core 3 are respectively communicated with two liquid guide pipe openings 2, so that the adjustment deviation of the valve core 3 can be prevented to affect the communication work between the valve hole 4 and the liquid guide pipe opening 2.

[0049] The working principle of the present application is as follows:

[0050] When the extension handle of the outer wall of the rotating handle 131 is in the front, the three liquid guide pipe openings 2 outside the three-way valve body 1 are in a mutual communication state. When the three-way valve is cleaned, the three sealing protective sleeves 7 seal the openings of the three liquid guide pipe openings 2, respectively, and the flow stop valve 803 in the collection assembly 8 is in an open state. The end of the cleaning liquid connecting pipe 602 in the pressurizing assembly 6 is connected to the external cleaning liquid, the micro pump 601 is controlled to work, the cleaning liquid connecting pipe 602 draws the cleaning liquid, the cleaning liquid passes through the micro pump 601, the one-way valve 604, and the rotary joint 605 and is discharged from the water guide head 606, the one-way valve 604 is used to guide the cleaning liquid into the rotary joint 605 and can prevent the cleaning liquid from flowing back to the micro pump 601, the cleaning liquid discharged from the water guide head 606 is guided into the interiors of the three liquid guide pipe openings 2 through the valve holes 4 in the valve core 3, respectively, so that the blades 502 outside the wheel shaft 501 are in contact with the cleaning liquid; because the blades 502 are arranged obliquely outside the wheel shaft 501, the plurality of blades 502 are pushed by the impact force of the water flow to rotate the wheel shaft 501, the wheel shaft 501 drives the connecting shaft 504 to rotate, the connecting shaft 504 drives the scraping strip 508 to rotate through the sliding cylinder 505 and the sliding rod 506, because the scraping strip 508 is in contact with the inner wall of the liquid guide pipe opening 2, the scraping strip 508 can scrape and brush the inner wall of the liquid guide pipe opening 2 in the process of rotation, so that the residues attached to the inner wall of the liquid guide pipe opening 2 are scraped off. In the process of rotation of the scraping strip 508, the sliding rod 506 drives the scraping strip 508 to adhere to the inner wall of the liquid guide pipe opening 2 by the elastic force of the first spring 507 inside the sliding cylinder 505, and the scraping strip 508 can adaptively adjust the position according to the shape of the inner wall of the liquid guide pipe opening 2, thereby improving the stability of the contact between the scraping strip 508 and the inner wall of the liquid guide pipe opening 2, so as to ensure the scraping and brushing effect.

[0051] While the scraping strip 508 scrapes and brushes the inner wall of the liquid guide pipe opening 2, the cleaning liquid can flush the inner wall of the liquid guide pipe opening 2, and only relies on the impact force of the water flow as a power source, without the need for additional power equipment to control the scraping and flushing work. Under the continuous impact of the water flow, the inner wall of the liquid guide pipe opening 2 is effectively cleaned, the accumulation of dirt on the inner wall of the liquid guide pipe opening 2 is reduced, and the dirt generated by scraping and flushing is discharged into the waste liquid collection barrel 801 through the flow stop valve 803 and the through pipe 802, thereby achieving the purpose of centralized collection of the generated dirt. When the dirt inside the waste liquid collection barrel 801 is too much, it can be discharged by opening the liquid discharge valve pipe 804 at the bottom of the waste liquid collection barrel 801.

[0052] When the micro pump 601 is disassembled, the locking state between the micro pump 601 and the three-way valve body 1 is released by loosening the plurality of mounting screws 603 outside the micro pump 601, and the micro pump 601 is pulled downward so that the water inlet end at the top of the micro pump 601 is separated from the one-way valve 604. Since the one-way valve 604 can guide the cleaning liquid into the rotary joint 605 and prevent the cleaning liquid from flowing back into the micro pump 601, the liquid inside the three-way valve cannot be discharged from the bottom of the three-way valve body 1. When the micro pump 601 is installed, the water inlet end at the top of the micro pump 601 is inserted into the one-way valve 604 and fixed to the bottom of the three-way valve body 1 by the plurality of mounting screws 603, so that the three-way valve body 1 and the micro pump 601 are separated and disassembled, and the micro pump 601 is freely selected for use or not used as needed, improving the flexibility of the three-way valve.

[0053] When switching the flow direction between the plurality of liquid guide pipe openings 2, the handle 131 in the adjusting assembly 13 is held and lifted to move the limiting block 132 at the bottom inside the sliding groove 902, and the plurality of clamping rods 133 are moved upward to make the clamping rods 133 disengage from the clamping grooves 11 at the top of the valve rod 901, thereby releasing the locking state between the valve rod 901 and the handle 131. The handle 131 is pulled to rotate the valve rod 901 through the limiting block 132 and the sliding groove 902. Since the limiting block 132 and the sliding groove 902 are rectangularly designed, the limiting block 132 moves inside the sliding groove 902 without affecting the rotation of the valve rod 901 driven by the handle 131. The valve rod 901 drives the blocking ring 903 and the valve core 3 to rotate. The blocking ring 903 is embedded inside the three-way valve body 1, so that the blocking ring 903 can rotate inside the three-way valve body 1 and vertically limit the valve rod 901, improving the stability of the rotation of the valve core 3 driven by the valve rod 901.

[0054] When the handle 131 is rotated by forty-five degrees, the three valve holes 4 in the valve core 3 are respectively misaligned with the ends of the three liquid guide pipe openings 2, so that the valve core 3 can block the three liquid guide pipe openings 2. After the handle 131 is loosened, the handle 131 is driven downward by the pulling force of the second spring 135, so that the plurality of clamping rods 133 are clamped into the clamping grooves 11 on the valve rod 901, achieving the purpose of locking the position of the handle 131, preventing the handle 131 from being deviated by external force and affecting the stability of the three-way valve.

[0055] When the rotating handle 131 is rotated again, the valve rod 901 drives the valve core 3 to continue to deflect until the blocking strip 904 outside the valve rod 901 is in contact with the vertical plate 12 at the top edge of the three-way valve body 1. The vertical plate 12 blocks the blocking strip 904, so that the valve rod 901 cannot rotate. At this time, the two valve holes 4 in the valve core 3 are respectively communicated with two liquid guide pipe openings 2, so that the adjustment deviation of the valve core 3 can be prevented from affecting the communication between the valve holes 4 and the liquid guide pipe openings 2. In the process of rotating the valve core 3, the rotating joint 605 is rotated on the top of the one-way valve 604. The rotating joint 605 can ensure that the cleaning liquid can be normally introduced into the valve hole 4 through the one-way valve 604 in the process of rotating the valve core 3. At this time, the micro pump 601 works, the cleaning liquid is guided out from the water guide head 606, so that the cleaning liquid can be introduced into the two liquid guide pipe openings 2 from the two valve holes 4, and the cleaning assembly 5 in the two liquid guide pipe openings 2 can work for self-cleaning. Therefore, any two or more liquid guide pipe openings 2 can be cleaned by adjusting the position of the valve core 3.

Claims

1. A self-cleaning drug-resistant anti-cracking medical tee-valve, comprising a tee-valve body (1), characterized in that: The three-way valve body (1) is externally fixedly installed with three liquid guide pipe openings (2), and the three-way valve body (1) is internally provided with a valve core (3), the valve core (3) is externally provided with valve holes (4) corresponding to the positions of the three liquid guide pipe openings (2) respectively, the valve holes (4) are in communication with the openings of the liquid guide pipe openings (2), the liquid guide pipe openings (2) are internally fixedly installed with cleaning assemblies (5), the bottom of the valve core (3) is connected with a booster assembly (6), the booster assembly (6) penetrates through the three-way valve body (1) and is fixedly installed at the bottom of the three-way valve body (1), and the top end of the booster assembly (6) is in communication with the three valve holes (4), one end of the liquid guide pipe opening (2) away from the valve core (3) is provided with a plugging protective sleeve (7), the bottoms of the three liquid guide pipe openings (2) are connected with collecting assemblies (8), the top end of the collecting assembly (8) is located at the side of the bottom of the liquid guide pipe opening (2) away from the valve core (3), the top of the valve core (3) is fixedly connected with a deflection assembly (9), the deflection assembly (9) is penetratingly arranged at the top of the three-way valve body (1), the deflection assembly (9) is externally provided with a fixing ring (10), the fixing ring (10) is fixedly connected to the outer side of the top of the three-way valve body (1), a plurality of clamping grooves (11) are equidistantly arranged at the top of the fixing ring (10), the deflection assembly (9) is connected with an adjusting assembly (13) above, and the bottom end of the adjusting assembly (13) is clamped in the clamping groove (11). The cleaning assembly (5) comprises an axle (501), the axle (501) is located inside the liquid guide pipe opening (2) and close to one side of the valve core (3), the shaft center of the axle (501) corresponds to the position of the valve hole (4), a plurality of blades (502) are fixedly connected outside the axle (501), and the blades (502) are obliquely arranged outside the axle (501), an axle seat (503) is rotatably connected to one end of the axle (501) close to the valve core (3), the axle seat (503) is fixed to the inner wall of the liquid guide pipe opening (2) through a fixing rod, and a connecting shaft (504) is fixedly connected to one end of the axle (501) away from the valve core (3). The connecting shaft (504) is externally fixed with two groups of sliding cylinders (505), and the number of sliding cylinders (505) in each group is two, sliding rods (506) are slidingly connected inside the sliding cylinders (505), one end of the sliding rod (506) is fixedly connected with a first spring (507), the end of the first spring (507) is fixed to the inner wall of the sliding cylinder (505), and the ends of the corresponding two sliding rods (506) are fixedly connected with scraping strips (508), and the scraping strips (508) are lapped with the inner wall of the liquid guide pipe opening (2).

2. The self-cleaning drug-resistant anti-cracking medical three-way valve according to claim 1, characterized in that: The booster assembly (6) comprises a micro pump (601), a plurality of mounting screws (603) are arranged outside the micro pump (601), the micro pump (601) is fixed to the bottom of the three-way valve body (1) through the mounting screws (603), the water inlet end of the bottom of the micro pump (601) is connected with a cleaning liquid connecting pipe (602), the water inlet end of the top of the micro pump (601) penetrates the bottom of the three-way valve body (1) and is connected with a one-way valve (604), the top of the one-way valve (604) is connected with a rotary joint (605), the rotary joint (605) is clamped to the bottom of the valve core (3), the top of the rotary joint (605) is provided with a water guide head (606), and the water guide head (606) is connected with the three valve holes (4).

3. The self-cleaning drug-resistant anti-cracking medical three-way valve according to claim 1, characterized in that: The collecting assembly (8) comprises a waste liquid collecting barrel (801), the bottom of the waste liquid collecting barrel (801) is connected with a liquid discharge valve pipe (804), the top of the waste liquid collecting barrel (801) is connected with three guide pipes (802) of different lengths, the top end of the guide pipe (802) is connected with the bottom of the liquid guide pipe (2) and is close to one side of the occlusion protection sleeve (7), and the stop valve (803) is arranged at the position, close to the liquid guide pipe (2), outside the guide pipe (802).

4. The self-cleaning drug-resistant anti-cracking medical three-way valve according to claim 1, characterized in that: The deflection assembly (9) comprises a valve rod (901), a sliding groove (902) is arranged at the center of the top of the valve rod (901), the bottom of the adjusting assembly (13) is clamped in the sliding groove (902), and the sliding groove (902) is designed in a rectangular shape, the bottom end of the valve rod (901) is fixed to the top of the valve core (3), the lower portion of the outer wall of the valve rod (901) is fixed with a blocking ring (903), and the blocking ring (903) is embedded in the inner portion of the three-way valve body (1).

5. The self-cleaning drug-resistant anti-cracking medical three-way valve according to claim 4, characterized in that: The adjusting assembly (13) comprises a handle (131), a limiting block (132) is fixedly connected to the center of the bottom of the handle (131), the limiting block (132) is designed in a rectangular shape and is slidably connected in the sliding groove (902), an extension handle is arranged on the outer wall of the handle (131), four clamping rods (133) are fixedly connected to the bottom of the handle (131) respectively, the clamping rods (133) penetrate the valve rod (901) and are clamped in the clamping grooves (11), the included angle between adjacent two clamping grooves (11) is forty-five degrees, a second spring (135) is sleeved on the clamping rod (133), the top end of the second spring (135) is fixed to the bottom of the handle (131), the bottom end of the second spring (135) is fixed to the top of the valve rod (901), and a limiting ring (134) is fixedly connected to the outer wall of the clamping rod (133) and located between the valve rod (901) and the three-way valve body (1).

6. The self-cleaning drug-resistant anti-cracking medical three-way valve according to claim 5, characterized in that: Two blocking strips (904) are fixedly connected to the outer wall of the valve rod (901), and two standing plates (12) are fixedly connected to the edges of the top of the three-way valve body (1), the standing plates (12) and the blocking strips (904) are both arc-shaped, and the standing plates (12) and the blocking strips (904) are concentrically designed.

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