Self-cleaning type drug-resistant anti-cracking medical three-way valve

Abstract

The invention discloses a self-cleaning type 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 materials can tolerate the drug effect and cracking caused by frequent operation, cleaning liquid is guided into three liquid guide pipe openings through valve holes respectively, blades outside a wheel shaft make contact with the cleaning liquid, and therefore the cleaning effect is improved. A plurality of blades push a wheel shaft to rotate under the impact force of water flow, a connecting shaft drives a scraping strip to rotate through a sliding barrel and a sliding rod, the scraping strip can scrape and brush the inner wall of a liquid guide pipe opening, the sliding rod is supported through the elastic force of a first spring in the sliding barrel, and the sliding rod drives the scraping strip to be attached to the inner wall of the liquid guide pipe opening; and the position of the scraping strip can be adjusted in a self-adaptive mode according to the shape of the inner wall of the liquid guide pipe opening, then the contact stability of the scraping strip and the inner wall of the liquid guide pipe opening is improved, the inner wall of the liquid guide pipe opening can be scoured through cleaning liquid, and the purpose of comprehensively and evenly cleaning the inner wall of the three-way valve is achieved through mutual cooperation of scraping brushing and scouring work.

Description

Technical Field

[0001] The invention relates to the technical field of medical three-way valves, in particular to a self-cleaning drug-resistant and crack-resistant medical three-way valve. Background Art

[0002] Medical three-way valves are generally used in conjunction with other medical devices for intravenous injection or infusion and blood transfusion of the human body. They are widely used in the medical field. The three-way body is equipped with a drug inlet channel, a liquid discharge detection channel and a liquid passage channel. These channels are interconnected. In order to prevent the three-way valve from cracking, polyamide material is used to ensure that there will be no cracking and leakage for a long time during the infusion process, and it has good drug resistance and anti-cracking performance.

[0003] At present, traditional medical three-way valves often have residues of drugs, blood, etc. after use. For example, during the infusion process, when switching different infusion channels or after the infusion is completed, a small amount of liquid is likely to remain in the internal channel of the three-way valve, and the internal channel is narrow. When using a syringe to flush the channel, it is difficult to ensure that all corners and gaps can be flushed due to the obstruction of the internal structure. It is difficult to completely clean some dirt attached to the inner wall of the channel, or the three-way valve needs to be removed from the connected pipeline for cleaning, which is extremely inconvenient. Summary of the invention

[0004] The purpose of the present invention is to provide a self-cleaning, drug-resistant and crack-resistant medical three-way valve to solve the problem that the traditional medical three-way valve proposed in the above background technology often has residues of drugs, blood, etc. after use. For example, during the infusion process, when switching different infusion channels or after the infusion is completed, a small amount of liquid is likely to remain in the internal channel of the three-way valve, and the internal channel is narrow. When using a syringe to flush the channel, it is difficult to ensure that all corners and gaps can be flushed due to the obstruction of the internal structure. It is difficult to thoroughly clean some dirt attached to the inner wall of the channel, or the three-way valve needs to be removed from the connected pipeline for cleaning, which is extremely inconvenient to operate.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A self-cleaning, drug-resistant and crack-resistant medical three-way valve comprises a three-way valve body, three liquid guide pipe ports are fixedly mounted on the outside of the three-way valve body, a valve core is arranged inside the three-way valve body, valve holes are respectively opened at positions corresponding to the three liquid guide pipe ports on the outside of the valve core, the valve holes are communicated with the openings of the liquid guide pipe ports, a cleaning component is fixedly mounted inside the liquid guide pipe ports, a booster component is connected to the bottom of the valve core, the booster component penetrates the three-way valve body and is fixedly mounted on the bottom of the three-way valve body, the top of the booster component is communicated with the three valve holes, and the liquid guide pipe ports are connected to the bottom of the valve core. A sealing protective sleeve is provided at the end of the pipe mouth away from the valve core, and the bottoms of the three liquid guiding pipe mouths are connected to a collecting assembly, and the top of the collecting assembly is located on the side of the bottom of the liquid guiding pipe mouth away from the valve core. The top of the valve core is fixedly connected with a deflection assembly, and the deflection assembly is arranged through the top of the three-way valve body. A fixing ring is provided on the outside of the deflection assembly, and the fixing ring is fixedly connected to the outside of the top of the three-way valve body. A number of slots are equidistantly provided on the top of the fixing ring, and an adjusting assembly is connected above the deflection assembly, and the bottom end of the adjusting assembly is clamped in the slot.

[0007] As a further solution of the present invention, the cleaning assembly includes an axle, which is located on a side of the liquid guide tube outlet close to the valve core, the axis of the axle corresponds to the position of the valve hole, a plurality of blades are fixedly connected to the outside of the axle, and the blades are obliquely arranged outside the axle, one end of the axle close to the valve core is rotatably connected to an axle seat, the axle seat is fixed to the inner wall of the liquid guide tube outlet through a fixing rod, and the end of the axle away from the valve core is fixedly connected to a connecting shaft.

[0008] As a further solution of the present invention, two groups of slide cylinders are fixed outside the connecting shaft, and the number of slide cylinders in each group is two. A slide rod is slidably connected inside the slide cylinder, one end of the slide rod is fixedly connected to a first spring, and 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 scrapers, and the scrapers overlap the inner wall of the catheter opening.

[0009] As a further solution of the present invention, the boosting assembly includes a micro pump, which is provided with a plurality of mounting screws, and the micro pump is fixed to the bottom of the three-way valve body by the plurality of mounting screws, the water inlet end at the bottom of the micro pump is connected to a cleaning liquid connection pipe, the water inlet end at the top of the micro pump passes through the bottom of the three-way valve body and is connected to a one-way valve, the top of the one-way valve is connected to a rotary joint, the rotary joint is clamped at the bottom of the valve core, the top of the rotary joint is provided with a water guide head, and the water guide head is connected to three valve holes.

[0010] As a further solution of the present invention, the collection component includes a waste liquid collection barrel, the bottom of which is connected to a drain valve tube, the top of which is connected to three conducting tubes of different lengths, the top of the conducting tube being connected to one side of the bottom of the conducting tube opening close to the sealing protective sleeve, and a stop valve being installed on the outside of the conducting tube close to the conducting tube opening.

[0011] As a further solution of the present invention, the deflection assembly includes a valve stem, a slide groove is opened at the center of the top of the valve stem, the bottom of the adjustment assembly is clamped in the slide groove, and the slide groove is rectangular in design, the bottom end of the valve stem is fixed to the top of the valve core, and a retaining ring is fixed below the outer wall of the valve stem, and the retaining ring is embedded in the interior of the three-way valve body.

[0012] As a further solution of the present invention, the adjusting component includes a turning handle, a limiting block is fixedly connected at the center of the bottom of the turning handle, the limiting block is of rectangular design and is slidably connected in the sliding groove, an extension handle is provided on the outer wall of the turning handle, and a clamping rod is fixedly connected at the four corners of the bottom of the turning handle, the clamping rod passes through the valve stem and is clamped in the clamping groove, the angle between two adjacent clamping grooves is forty-five degrees, a second spring is connected to the outer sleeve of the clamping rod, the top end of the second spring is fixed to the bottom of the turning handle, the bottom end of the second spring is fixed to the top of the valve stem, the outer wall of the clamping rod is fixedly connected to a limiting ring, and the limiting ring is located between the valve stem and the three-way valve body.

[0013] As a further solution of the present invention, two baffles are fixedly connected to the outer wall of the valve stem, and two vertical plates are fixedly connected to the edge of the top of the three-way valve body. The vertical plates and baffles are both arc-shaped, and the vertical plates and baffles are concentrically designed.

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

[0015] 1. When the three-way valve is cleaned by the present invention, the micro pump works and draws the cleaning liquid from the cleaning liquid connecting pipe, so that the cleaning liquid passes through the micro pump, the one-way valve and the rotary joint and is discharged from the water guide head. The cleaning liquid discharged from the water guide head is respectively introduced into the three liquid guide pipe openings through the valve holes in the valve core, so that the blades outside the wheel shaft contact with the cleaning liquid. Because the blades are arranged outside the wheel shaft at an angle, the plurality of blades drive the wheel shaft to rotate under the impact force of the water flow, and the wheel shaft drives the connecting shaft to rotate. The connecting shaft drives the scraper to rotate through the slide cylinder and the slide rod. Because the scraper contacts the inner wall of the liquid guide pipe opening, the scraper can scrape the inner wall of the liquid guide pipe opening during the rotation process, so that the scraper can scrape off the residue attached to the inner wall of the liquid guide pipe opening. During the rotation of the scraper, the slide rod is pressed by the elastic force of the first spring inside the slide cylinder. The support enables the sliding rod to drive the scraper to fit the inner wall of the liquid guide tube opening, and the scraper can adaptively adjust its position according to the shape of the inner wall of the liquid guide tube opening, thereby improving the stability of the contact between the scraper and the inner wall of the liquid guide tube opening, thereby ensuring the scraping effect. While the scraper is scraping the inner wall of the liquid guide tube opening, the cleaning liquid can flush the inner wall of the liquid guide tube opening, and only relies on the impact force of the water flow itself as the power source. No additional power equipment is required to control the scraping and flushing work. Under the continuous impact of the water flow, the inner wall of the liquid guide tube opening is effectively cleaned, and the accumulation of dirt on the inner wall of the liquid guide tube opening is reduced. The dirt generated by scraping and flushing enters the waste liquid collection bucket through the stop valve and the conducting pipe. Through the mutual cooperation between scraping and flushing, the purpose of comprehensive and uniform cleaning of the inner wall of the three-way valve is achieved.

[0016] 2. The present invention holds the rotating handle in the adjusting assembly, lifts the rotating handle so that it drives the limit block at the bottom to move upward inside the slide groove, and at the same time, the rotating handle drives multiple clamping rods to move upward, so that the clamping rods are separated from the clamping groove at the top of the valve stem, and the rotating handle is pulled to drive the valve stem to rotate through the limit block and the slide groove, and the valve stem drives the retaining ring and the valve core to rotate. The retaining ring is embedded in the interior of the three-way valve body, so that the retaining ring can rotate inside the three-way valve body, and can vertically limit the valve stem, thereby improving the stability of the valve stem driving the valve core to rotate. When the rotating handle rotates forty-five degrees, the three valve holes in the valve core are respectively misaligned with the ends of the three liquid guide pipe openings, so that the valve core can block the three liquid guide pipe openings, and after the rotating handle is released The turning handle is driven downward by the pulling force of the second spring, so that the turning handle drives multiple clamping rods to be clamped into the clamping grooves on the valve stem, thereby achieving the purpose of locking the turning handle position and preventing the turning handle from being deviated by external force and affecting the stability of the three-way valve. When the turning handle is lifted up and rotated again, the valve stem drives the valve core to continue to deflect until the baffle bar outside the valve stem contacts the vertical plate at the top edge of the three-way valve body, and the baffle bar is blocked by the vertical plate, so that the valve stem cannot rotate. At this time, the two valve holes in the valve core are respectively connected to two of the liquid guide pipe ports, thereby preventing the valve core from having an adjustment deviation that affects the conduction work between the valve hole and the liquid guide pipe port, thereby improving the use accuracy of the three-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the present invention from the rear;

[0020] Figure 3 It is a structural schematic diagram of a local section of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the cleaning component of the present invention;

[0022] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0023] Figure 6 It is a structural schematic diagram of the booster assembly of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the collection component of the present invention;

[0025] Figure 8 It is a schematic diagram of the structure of the deflection assembly and the adjustment assembly being separated according to the present invention;

[0026] Fig. 9 It is a schematic diagram of the structure of the regulating component of the present invention.

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

[0028] 1. Three-way valve body; 2. Liquid guide pipe port; 3. Valve core; 4. Valve hole; 5. Cleaning assembly; 501. Wheel axle; 502. Blade; 503. Axle seat; 504. Connecting shaft; 505. Sliding cylinder; 506. Sliding rod; 507. First spring; 508. Scraper; 6. Pressurizing assembly; 601. Micro pump; 602. Cleaning liquid connecting pipe; 603. Mounting screw; 604. One-way valve; 605. Rotary joint; 606. Water guide head; 7. Sealing protection sleeve; 8. Collecting assembly; 801. Waste liquid collecting barrel; 802. Conducting pipe; 803. Stop valve; 804. Drain valve pipe; 9. Deflection assembly; 901. Valve stem; 902. Slide groove; 903. Retaining ring; 904. Retaining bar; 10. Fixing ring; 11. Slot; 12. Vertical plate; 13. Adjusting assembly; 131. Turning handle; 132. Limiting block; 133. Clamping rod; 134. Limiting ring; 135. Second spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5 , the present invention provides a technical solution:

[0031] A self-cleaning, drug-resistant and crack-resistant medical three-way valve comprises a three-way valve body 1, three liquid guide pipe openings 2 are fixedly mounted on the outside of the three-way valve body 1, a valve core 3 is arranged inside the three-way valve body 1, valve holes 4 are respectively opened at positions corresponding to the three liquid guide pipe openings 2 on the outside of the valve core 3, the valve holes 4 are communicated with the openings of the liquid guide pipe openings 2, a sealing protective sleeve 7 is arranged at one end of the liquid guide pipe opening 2 away from the valve core 3, a cleaning component 5 is fixedly mounted inside the liquid guide pipe opening 2, the cleaning component 5 is used to scrape and flush the inside of the three-way valve, and only the impact force of the water flow itself is used as a power source to drive the cleaning component 5 to work, without the need for additional power equipment to control the scraping and flushing work, and under the continuous impact of the water flow, the cleaning component 5 effectively cleans the inner wall of the liquid guide pipe opening 2 in all directions.

[0032] As a further solution of the present invention, the cleaning component 5 includes an axle 501, which is located on one side of the liquid guide tube port 2 near the valve core 3, and the axis of the axle 501 corresponds to the position of the valve hole 4. A plurality of blades 502 are fixedly connected to the outside of the axle 501, and the blades 502 are arranged obliquely outside the axle 501. The end of the axle 501 near the valve core 3 is rotatably connected to a shaft seat 503, and the shaft seat 503 is fixed to the inner wall of the liquid guide tube port 2 through a fixing rod; the end of the axle 501 away from the valve core 3 is fixedly connected to a connecting shaft 504. The blades 502 outside the axle 501 are in contact with the cleaning liquid. Since the blades 502 are arranged obliquely outside the axle 501, the multiple blades 502 are driven by the impact force of the water flow to rotate the axle 501, and the axle 501 drives the connecting shaft 504 to rotate, and then the impact force of the water flow itself is used as a power source to drive the blades 502 to rotate.

[0033] Two groups of slide cylinders 505 are fixed outside the connecting shaft 504, and the number of each group of slide cylinders 505 is two. A slide rod 506 is slidably connected inside the end surface of the slide cylinder 505. One end of the slide rod 506 is fixedly connected to a first spring 507, and the end of the first spring 507 is fixed to the inner wall of the slide cylinder 505; the ends of the two corresponding slide rods 506 are fixedly connected to scrapers 508, and the scrapers 508 overlap the inner wall of the catheter port 2.

[0034] Since the scraper bar 508 is in contact with the inner wall of the liquid guiding tube opening 2, the scraper bar 508 can scrape the inner wall of the liquid guiding tube opening 2 during the rotation process, so as to scrape off the residue attached to the inner wall of the liquid guiding tube opening 2. During the rotation process of the scraper bar 508, the elastic force of the first spring 507 inside the slide cylinder 505 supports the slide bar 506, so that the slide bar 506 drives the scraper bar 508 to fit the inner wall of the liquid guiding tube opening 2, and the scraper bar 508 can adjust its position adaptively according to the shape of the inner wall of the liquid guiding tube opening 2, thereby improving the contact stability of the scraper bar 508 with the inner wall of the liquid guiding tube opening 2 and improving the cleaning effect of the scraper bar 508 on the inner wall of the liquid guiding tube opening 2.

[0035] like Figure 6 As shown, the bottom of the valve core 3 is connected to a booster assembly 6 , which passes through the three-way valve body 1 and is fixedly installed at the bottom of the three-way valve body 1 , and the top of the booster assembly 6 is connected to the three valve holes 4 .

[0036] As a further solution of the present invention, the boosting component 6 includes a micro pump 601, which is provided with a plurality of mounting screws 603, and the micro pump 601 is fixed to the bottom of the three-way valve body 1 by the plurality of mounting screws 603, the water inlet end at the bottom of the micro pump 601 is connected to a cleaning liquid connection pipe 602, the water inlet end at the top of the micro pump 601 passes through the bottom of the three-way valve body 1 and is connected to a one-way valve 604, the top of the one-way valve 604 is connected to a rotary joint 605, the rotary joint 605 is clamped at 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 to the three valve holes 4.

[0037] The cleaning liquid connecting tube 602 draws cleaning liquid, so that 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 introduce the cleaning liquid into the rotary joint 605 and can prevent the cleaning liquid from flowing back into the micro pump 601. The cleaning liquid discharged from the water guide head 606 is respectively introduced into the three liquid guide pipe openings 2 through the valve hole 4 in the valve core 3. The setting of the rotary joint 605 can ensure that the cleaning liquid can be normally introduced into the valve hole 4 through the one-way valve 604 during the rotation of the valve core 3.

[0038] By loosening the multiple mounting screws 603 on the outside of the micro pump 601, the locking state between the micro pump 601 and the three-way valve body 1 is released, and the micro pump 601 is pulled downward to separate the water inlet end at the top of the micro pump 601 from the one-way valve 604. 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. When installing the micro pump 601, 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 multiple mounting screws 603, so that the three-way valve body 1 and the micro pump 601 can be separated and disassembled conveniently, so that the micro pump 601 can be freely selected to be used or not according to needs, thereby improving the flexibility of use.

[0039] like Figure 7 As shown, the bottoms of the three liquid guiding tube ports 2 are connected to a collecting assembly 8 , and the top of the collecting assembly 8 is located on a side of the bottom of the liquid guiding tube port 2 away from the valve core 3 .

[0040] As a further solution of the present invention, the collection component 8 includes a waste liquid collection barrel 801, and the bottom of the waste liquid collection barrel 801 is connected to a drain valve tube 804; the top of the waste liquid collection barrel 801 is connected to three conducting tubes 802 of different lengths, and the top of the conducting tube 802 is connected to the side of the bottom of the liquid guiding tube port 2 close to the blocking protective sleeve 7, and a stop valve 803 is installed on the outside of the conducting tube 802 near the liquid guiding tube port 2.

[0041] The dirt generated by scraping and flushing the inside of the three-way valve by the cleaning component 5 enters the waste liquid collection barrel 801 through the stop valve 803 and the connecting pipe 802, thereby achieving the purpose of centralized collection of the generated dirt. When there is too much dirt inside the waste liquid collection barrel 801, it is discharged by opening the drain valve pipe 804 at the bottom of the waste liquid collection barrel 801, thereby improving the convenience of operation.

[0042] like Figure 8-9 As shown, a deflection assembly 9 is fixedly connected to the top of the valve core 3 , the deflection assembly 9 is arranged through the top of the three-way valve body 1 , and an adjustment assembly 13 is connected above the deflection assembly 9 .

[0043] As a further solution of the present invention, the deflection assembly 9 includes a valve stem 901, the bottom end of the valve stem 901 is fixed to the top of the valve core 3, and the connection relationship between different liquid guide tube ports 2 is controlled by rotating the valve stem 901 and rotating the valve core 3. A retaining ring 903 is fixed below the outer wall of the valve stem 901, and the retaining ring 903 is embedded in the interior of the three-way valve body 1, so that the retaining ring 903 can rotate inside the three-way valve body 1, and can vertically limit the valve stem 901, thereby improving the stability of the valve stem 901 driving the valve core 3 to rotate.

[0044] The adjustment component 13 includes a handle 131, a limit block 132 is fixedly connected to the center of the bottom of the handle 131, a slide groove 902 is opened at the center of the top of the valve stem 901, and the slide groove 902 is of rectangular design. The limit block 132 is of rectangular design and is slidably inserted and connected in the slide groove 902.

[0045] The valve stem 901 is provided with a fixing ring 10 on the outside, which is fixedly connected to the outside of the top of the three-way valve body 1. The top of the fixing ring 10 is provided with a plurality of slots 11 at equal intervals. The outer wall of the rotating handle 131 is provided with an extension handle, and the four corners of the bottom of the rotating handle 131 are respectively fixedly connected with a clamping rod 133, which penetrates the valve stem 901 and is clamped in the slot 11. The angle between two adjacent slots 11 is 45 degrees. The clamping rod 133 is connected with a second spring 135 on the outer surface, the top of the second spring 135 is fixed to the bottom of the rotating handle 131, and the bottom of the second spring 135 is fixed to the top of the valve stem 901. The outer wall of the clamping rod 133 is fixedly connected with a limiting ring 134, and the limiting ring 134 is located between the valve stem 901 and the three-way valve body 1.

[0046] The handle 131 is pulled to drive the valve stem 901 to rotate through the limit block 132 and the slide slot 902. Since the limit block 132 and the slide slot 902 are rectangular in design, the limit block 132 moves inside the slide slot 902 without affecting the handle 131 driving the valve stem 901 to rotate, so that the valve stem 901 can easily drive the retaining 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 handle 131 drives multiple clamping rods 133 to be clamped into the clamping groove 11 on the valve stem 901, so as to achieve the purpose of locking the position of the handle 131, prevent the handle 131 from being deviated by external force and affect the stability of the three-way valve, and the setting of the limit ring 134 outside the clamping rod 133 can prevent the clamping rod 133 from being separated from the valve stem 901, thereby improving the stability of the handle 131 driving the valve stem 901 to rotate through the clamping rod 133.

[0047] As a further solution of the present invention, two baffles 904 are fixedly connected to the outer wall of the valve stem 901, and two vertical plates 12 are fixedly connected to the edge of the top of the three-way valve body 1. The vertical plates 12 and the baffles 904 are both arc-shaped, and the vertical plates 12 and the baffles 904 are concentrically designed.

[0048] When the valve stem 901 drives the valve core 3 to rotate, when the baffle 904 outside the valve stem 901 contacts the vertical plate 12 at the top edge of the three-way valve body 1, the baffle 904 is blocked by the vertical plate 12, so that the valve stem 901 cannot rotate. At this time, the two valve holes 4 in the valve core 3 are respectively connected to two of the liquid guide pipe ports 2, thereby preventing the valve core 3 from having an adjustment deviation that affects the conduction work between the valve hole 4 and the liquid guide pipe port 2.

[0049] Working principle of the present invention:

[0050] When the extension handle of the outer wall of the rotating handle 131 is in the front, the three liquid guide pipe ports 2 outside the three-way valve body 1 are in an interconnected state. When cleaning the three-way valve, the three blocking protective sleeves 7 respectively block the openings of the three liquid guide pipe ports 2, and the stop valve 803 in the collecting component 8 is in an open state. The end of the cleaning liquid connecting pipe 602 in the boosting component 6 is connected to the external cleaning liquid, and the micro pump 601 is controlled to work so that the cleaning liquid connecting pipe 602 extracts the cleaning liquid, and 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 introduce 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 respectively introduced into the three liquid guide pipe ports 2 through the valve hole 4 in the valve core 3, so that The blades 502 outside the wheel axle 501 are in contact with the cleaning liquid; because the blades 502 are arranged obliquely outside the wheel axle 501, the multiple blades 502 push the wheel axle 501 to rotate under the impact force of the water flow, and the wheel axle 501 drives the connecting shaft 504 to rotate, and the connecting shaft 504 drives the scraper 508 to rotate through the slide cylinder 505 and the slide rod 506. Because the scraper 508 is in contact with the inner wall of the liquid guide tube opening 2, the scraper 508 can scrape the inner wall of the liquid guide tube opening 2 during the rotation process, so that it can scrape off the residue attached to the inner wall of the liquid guide tube opening 2. During the rotation of the scraper strip 508, the slide bar 506 is supported by the elastic force of the first spring 507 inside the slide cylinder 505, so that the slide bar 506 drives the scraper strip 508 to fit the inner wall of the liquid guide tube opening 2, and the scraper strip 508 can adaptively adjust its position according to the shape of the inner wall of the liquid guide tube opening 2, thereby improving the stability of the contact between the scraper strip 508 and the inner wall of the liquid guide tube opening 2, thereby ensuring the scraping effect.

[0051] While the scraper 508 is scraping the inner wall of the liquid guide tube port 2, the cleaning liquid can flush the inner wall of the liquid guide tube port 2, and only the impact force of the water flow itself is used as the power source, and no additional power equipment is required to control the scraping and flushing work. Under the continuous impact of the water flow, the inner wall of the liquid guide tube port 2 is effectively cleaned, and the accumulation of dirt on the inner wall of the liquid guide tube port 2 is reduced. The dirt generated by scraping and flushing enters the waste liquid collection barrel 801 through the stop valve 803 and the conducting pipe 802, thereby achieving the purpose of centralized collection of the generated dirt. When there is too much dirt inside the waste liquid collection barrel 801, it can be discharged by opening the drain valve pipe 804 at the bottom of the waste liquid collection barrel 801.

[0052] When removing the micro pump 601, the locking state between the micro pump 601 and the three-way valve body 1 is released by loosening the multiple mounting screws 603 on the outside of the micro pump 601, and the micro pump 601 is pulled downward to separate the water inlet end at the top of the micro pump 601 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 will not be discharged from the bottom of the three-way valve body 1. When installing the micro pump 601, 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 multiple mounting screws 603, so that the three-way valve body 1 and the micro pump 601 can be separated and disassembled conveniently, so that the micro pump 601 can be freely selected to be used or not according to needs, thereby improving the flexibility of the use of the three-way valve.

[0053] When switching the flow direction between multiple liquid guiding tube ports 2, the handle 131 in the adjustment assembly 13 is held and lifted up to drive the limit block 132 at the bottom to move upward inside the slide groove 902. At the same time, the handle 131 drives multiple clamping rods 133 to move upward, so that the clamping rods 133 are disengaged from the clamping groove 11 at the top of the valve stem 901, thereby releasing the locking state between the valve stem 901 and the handle 131. The turning handle 131 is pulled to drive the valve stem 901 to rotate through the limit block 132 and the slide groove 902. Since the limit block 132 and the slide groove 902 are of rectangular design, the limit block 132 can move inside the slide groove 902 without affecting the turning handle 131 to drive the valve stem 901 to rotate. The valve stem 901 drives the retaining ring 903 and the valve core 3 to rotate. The retaining ring 903 is embedded in the inside of the three-way valve body 1, so that the retaining ring 903 can rotate inside the three-way valve body 1, and can vertically limit the valve stem 901, thereby improving the stability of the valve stem 901 driving the valve core 3 to rotate.

[0054] When the handle 131 rotates 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 handle 131 drives the multiple clamping rods 133 to be clamped into the clamping grooves 11 on the valve stem 901, thereby achieving the purpose of locking the position of the handle 131 and preventing the handle 131 from being deviated by external force and affecting the stability of the three-way valve.

[0055] When the handle 131 is lifted and rotated again, the valve stem 901 drives the valve core 3 to continue to deflect until the stopper 904 outside the valve stem 901 contacts the vertical plate 12 at the top edge of the three-way valve body 1, and the stopper 904 is blocked by the vertical plate 12, so that the valve stem 901 cannot rotate. At this time, the two valve holes 4 in the valve core 3 are respectively connected to two of the liquid guide pipe ports 2, thereby preventing the valve core 3 from having an adjustment deviation that affects the conduction between the valve hole 4 and the liquid guide pipe port 2. During the rotation of the valve core 3, the valve core 3 will drive the rotation The joint 605 rotates at the top of the one-way valve 604. The setting of 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 during the rotation of the valve core 3. At this time, the micro pump 601 is working, and the cleaning liquid is discharged from the water guide head 606, so that the cleaning liquid can be introduced into the two liquid guide pipe ports 2 from two of the valve holes 4, and the cleaning components 5 in the two liquid guide pipe ports 2 can perform self-cleaning work, so any two or more of the liquid guide pipe ports 2 can be cleaned by adjusting the position of the valve core 3.

Claims

1. A self-cleaning, drug-resistant and crack-resistant medical three-way valve, comprising a three-way valve body (1), characterized in that: The three-way valve body (1) is fixedly provided with three liquid guide pipe openings (2) on the outside, and a valve core (3) is provided inside the three-way valve body (1). The valve core (3) is provided with valve holes (4) at positions corresponding to the three liquid guide pipe openings (2) on the outside, and the valve holes (4) are connected to the openings of the liquid guide pipe openings (2). A cleaning component (5) is fixedly provided inside the liquid guide pipe openings (2). A booster component (6) is connected to the bottom of the valve core (3). The booster component (6) passes through the three-way valve body (1) and is fixedly provided at the bottom of the three-way valve body (1), and the top of the booster component (6) is connected to the three valve holes (4). A sealing protective sleeve is provided at one end of the liquid guide pipe opening (2) away from the valve core (3). (7), the bottoms of the three liquid guiding tube ports (2) are connected to a collecting assembly (8), the top of the collecting assembly (8) is located at a side of the bottom of the liquid guiding tube port (2) away from the valve core (3), the top of the valve core (3) is fixedly connected to a deflection assembly (9), the deflection assembly (9) is arranged through the top of the three-way valve body (1), a fixing ring (10) is arranged outside the deflection assembly (9), the fixing ring (10) is fixedly connected to the outer side of the top of the three-way valve body (1), a plurality of slots (11) are equidistantly formed on the top of the fixing ring (10), an adjusting assembly (13) is connected above the deflection assembly (9), and the bottom end of the adjusting assembly (13) is snapped into the slot (11).

2. A self-cleaning, drug-resistant, anti-cracking medical three-way valve according to claim 1, characterized in that: The cleaning assembly (5) comprises an axle (501), the axle (501) being located on a side of the interior of the liquid guiding tube opening (2) close to the valve core (3), the axis of the axle (501) corresponding to the position of the valve hole (4), a plurality of blades (502) being fixedly connected to the outside of the axle (501), and the blades (502) being arranged obliquely outside the axle (501), an end of the axle (501) close to the valve core (3) being rotatably connected to an axle seat (503), the axle seat (503) being fixed to the inner wall of the liquid guiding tube opening (2) via a fixing rod, and an end of the axle (501) away from the valve core (3) being fixedly connected to a connecting shaft (504).

3. A self-cleaning drug-resistant and crack-resistant medical three-way valve according to claim 2, characterized in that: Two groups of slide cylinders (505) are fixed outside the connecting shaft (504), and the number of each group of slide cylinders (505) is two. A slide rod (506) is slidably connected inside the slide cylinder (505), and one end of the slide rod (506) is fixedly connected to a first spring (507), and the end of the first spring (507) is fixed to the inner wall of the slide cylinder (505). The ends of the two corresponding slide rods (506) are fixedly connected to a scraper (508), and the scraper (508) overlaps the inner wall of the catheter port (2).

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

5. The self-cleaning drug-resistant and crack-resistant 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 to a drain valve tube (804), the top of the waste liquid collecting barrel (801) is connected to three conducting tubes (802) of different lengths, the top of the conducting tube (802) is connected to a side of the bottom of the liquid guiding tube opening (2) close to the blocking protective sleeve (7), and a stop valve (803) is installed on the outside of the conducting tube (802) close to the liquid guiding tube opening (2).

6. A self-cleaning, drug-resistant, anti-cracking medical three-way valve according to claim 1, characterized in that: The deflection assembly (9) includes a valve stem (901), a slide groove (902) is provided at the center of the top of the valve stem (901), the bottom of the adjustment assembly (13) is clamped in the slide groove (902), and the slide groove (902) is of rectangular design, the bottom end of the valve stem (901) is fixed to the top of the valve core (3), and a retaining ring (903) is fixed below the outer wall of the valve stem (901), and the retaining ring (903) is embedded in the interior of the three-way valve body (1).

7. A self-cleaning, drug-resistant, anti-cracking medical three-way valve according to claim 6, characterized in that: The adjusting assembly (13) comprises a rotating handle (131), a limiting block (132) is fixedly connected at the center of the bottom of the rotating handle (131), the limiting block (132) is rectangular in design and is slidably connected in the slide groove (902), an extension handle is provided on the outer wall of the rotating handle (131), and a clamping rod (133) is fixedly connected at the four corners of the bottom of the rotating handle (131), the clamping rod (133) passes through the valve stem (901) and is clamped in the clamping groove (11), The angle between two adjacent slots (11) is forty-five degrees. A second spring (135) is connected to the outer shell of 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 stem (901). The outer wall of the clamping rod (133) is fixedly connected to a limiting ring (134). The limiting ring (134) is located between the valve stem (901) and the three-way valve body (1).

8. The self-cleaning drug-resistant and crack-resistant medical three-way valve according to claim 6, characterized in that: The outer wall of the valve stem (901) is fixedly connected to two retaining bars (904), and the top edge of the three-way valve body (1) is fixedly connected to two vertical plates (12), the vertical plates (12) and retaining bars (904) are both arc-shaped, and the vertical plates (12) and retaining bars (904) are concentrically designed.

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