Rotary reversing valve and flow guide reversing suite

Abstract

The utility model provides a rotary reversing valve and a flow guide reversing kit. The rotary reversing valve comprises an outer valve sleeve, an inner valve element and a sealing check ring capable of being inflated and deflated to expand and shrink. A plurality of embedding sleeve openings are formed in the outer valve sleeve; the plurality of scarf joint sleeve openings are respectively communicated with the rotating cavity of the outer valve sleeve, and each scarf joint sleeve opening is respectively used for being connected with the communicating end of the corresponding material conveying guide pipe in a sleeving manner; the inner valve element is rotationally arranged in the rotating cavity of the outer valve sleeve so as to communicate any two embedding sleeve openings; the sealing check ring is arranged in the at least one embedding sleeve opening and is close to the inner valve element; the sealing check ring is used for being arranged between the inner wall of the embedded connection sleeve opening and the outer wall of the communicating end of the corresponding material conveying guide pipe in a sealing mode, and when the sealing check ring is inflated and deflated, the sealing check ring abuts against or is far away from the inner valve element. After the sealing check ring of the rotary reversing valve is inflated, the sealing check ring can expand to abut against the inner valve element, so that friction borne by the inner valve element can be increased, and the situation that the inner valve element is impacted by fluid and deflects can be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline material transportation, and in particular to a rotary reversing valve and a flow guiding reversing kit. Background Art

[0002] A reversing valve is a directional control valve with two or more flow forms, which is usually used to switch water flow in different flow paths. Reversing valves are divided into two-way, three-way, four-way and six-way according to the number of passages connected to the valve body, and the switching drive mode is specifically divided into various forms such as motorized, electric and pneumatic.

[0003] For example, Chinese patent document CN102330827A discloses a reversing water valve, including a valve body and a valve ball. The valve body includes a water inlet and a water outlet. A water outlet is arranged on the valve body. The water inlet of the valve ball is connected to one of the water outlets. One of the water outlets is connected to the cold water supply end and circulated with the water supply network, and the other water outlet is used for draining water.

[0004] However, the design of the above-mentioned reversing water valve has the following problems:

[0005] Although the above-mentioned reversing water valve can quickly connect the water inlet with any water outlet by rotating the valve ball, since the ball valve is rotatably arranged in the valve body, when water flows through the inner cavity of the valve ball, the inner cavity of the valve ball is impacted by the water flow and is very likely to deflect in the valve body, thereby causing the water inlet and the water outlet of the valve body to be misaligned and disconnected, seriously affecting the stable flow of water and ultimately leading to the occurrence of safety accidents. Utility Model Content

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a rotary reversing valve and a flow guiding reversing kit that are resistant to fluid impact and convenient for reversing.

[0007] The purpose of this disclosure is achieved through the following technical solutions:

[0008] A rotary reversing valve comprises an outer valve sleeve and an inner valve core;

[0009] The outer valve sleeve is provided with a plurality of embedded sleeve openings; the plurality of embedded sleeve openings are respectively connected to the rotation cavity of the outer valve sleeve, and each of the embedded sleeve openings is respectively used to be sleeved on the communication end of the corresponding material conveying conduit; the inner valve core is rotatably arranged in the rotation cavity of the outer valve sleeve to connect any two of the embedded sleeve openings;

[0010] The rotary reversing valve also includes a sealing stop ring that can be inflated and deflated;

[0011] The sealing stop ring is arranged in at least one of the embedded sleeves and is close to the inner valve core; the sealing stop ring is used to seal between the inner wall of the embedded sleeve and the outer wall of the corresponding connecting end of the feed conduit, and when the sealing stop ring is inflated or deflated, it abuts against or moves away from the inner valve core.

[0012] In one embodiment, there are multiple sealing stop rings, and each sealing stop ring is correspondingly arranged in one of the embedded sleeves.

[0013] In one embodiment, the plurality of said inlay sleeves include a feed sleeve and at least two discharge sleeves;

[0014] Two interconnected docking ports are respectively formed on the inner valve core; one of the docking ports is arranged opposite to the feed sleeve and is used to be connected to the corresponding connecting end of the feed conduit; the other docking port is arranged opposite to any one of the discharge sleeves; the sealing stop ring is arranged in the feed sleeve and is close to the corresponding docking port; the sealing stop ring is used to seal between the feed sleeve and the inner wall of the corresponding connecting end of the feed conduit, and to seal the end face of the corresponding docking port when inflated.

[0015] In one embodiment, a sloped reversing flow channel is provided in the inner valve core; one of the docking ports is connected to the other docking port through the sloped reversing flow channel; and the central axis of the sloped reversing flow channel forms a first angle with the central axes of the two docking ports respectively.

[0016] In one embodiment, the sealing stop ring includes an air delivery pipe and an expansion and contraction air tire;

[0017] The inflatable pneumatic tube is used to be sleeved on the connecting end of the material conveying conduit; the first end of the air delivery tube is connected to the inner cavity of the inflatable pneumatic tube, and the second end of the air delivery tube extends out of the embedded sleeve, and the air delivery tube is used to inflate and discharge the gas in the inner cavity of the inflatable pneumatic tube.

[0018] In one of the embodiments, an elastic expansion ring is further provided in the embedded sleeve, and the expansion and contraction air tire is provided with an installation groove around the connecting end of the material conveying conduit; the elastic expansion ring is clamped in the installation groove and is used to be mounted on the connecting end of the material conveying conduit.

[0019] In one of the embodiments, an elastic clamp is further provided in the embedded sleeve, and the elastic clamp is used to be sleeved on the connecting end of the material conveying conduit, and an installation gap is formed between the elastic clamp and the inner valve core, and the expansion and contraction air tire is arranged in the installation gap.

[0020] In one of the embodiments, the rotary reversing valve further includes a rotation drive assembly;

[0021] The rotation drive assembly is installed on the first side surface of the outer valve sleeve. A rotation hole is opened on the first side surface of the outer valve sleeve. The inner valve core extends a transmission shaft into the rotation hole. The transmission shaft passes through the rotation hole and is connected to the power output end of the rotation drive assembly.

[0022] In one embodiment, the rotation drive assembly includes a push drive, a driving rack and a driven gear;

[0023] The pushing driver is fixedly arranged on the first side surface of the outer valve sleeve, and the push rod of the pushing driver is arranged toward the transmission shaft; the active rack is fixedly connected to the end of the push rod of the pushing driver, the driven gear is sleeved on the transmission shaft, and the active rack is meshed with the driven gear.

[0024] A flow diversion kit comprises a material delivery conduit and a swivel reversing valve according to any one of the above embodiments;

[0025] One of the embedded sleeves is sleeved on the connecting end of the material conveying conduit, and the sealing stop ring is sealingly arranged between the outer wall of the connecting end of the material conveying conduit and the corresponding inner wall of the embedded sleeve.

[0026] Compared with the prior art, the present invention has at least the following advantages:

[0027] 1) By arranging the sealing stop ring in at least one embedded sleeve opening and close to the inner valve core, when the inner valve core is connected to any two of the multiple embedded sleeve openings, the sealing stop ring can be inflated to expand and hold the inner valve core, so that the inner valve core can be kept in a fixed state in the outer valve sleeve. When reversing is required, the sealing stop ring can be deflated to shrink the sealing stop ring away from the inner valve core, so that the inner valve core can be rotated to achieve rapid reversing.

[0028] 2) By sealingly setting the sealing stop ring between the inner wall of the embedded sleeve and the outer wall of the connecting end of the corresponding material delivery conduit, when the material delivery conduit is connected to the inner valve core, the sealing stop ring can well seal the gap between the inner wall of the embedded sleeve and the outer wall of the connecting end of the corresponding material delivery conduit, thereby avoiding leakage of fluid flowing out of or into the material delivery conduit and causing waste.

[0029] 3) Compared with the reversing water valve in the prior art, the sealing stop ring of the above-mentioned rotary reversing valve can expand and hold the inner valve core after being inflated, thereby increasing the friction of the inner valve core and further significantly reducing the deflection of the inner valve core due to the impact of the fluid. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 A schematic diagram of the structure of a rotary reversing valve according to an embodiment of the present disclosure;

[0032] Figure 2 for Figure 1 An exploded view of the swing valve is shown;

[0033] Figure 3 for Figure 1 The cross-sectional structure diagram of the rotary reversing valve sleeved with the material delivery conduit shown;

[0034] Figure 4 It is a cross-sectional structural diagram of a flow guide and reversing kit according to another embodiment of the present disclosure.

[0035] Reference numerals: 10, diversion reversing kit; 100, swing reversing valve; 110, outer valve sleeve; 1110, first side plate; 1111, rotating hole; 1120, second side plate; 1130, middle shell; 1140, connecting rod; 1020, embedded sleeve; 1021, feed sleeve; 1022, discharge sleeve; 11a, rotating chamber; 120, inner valve core; 1210, docking port; 1220, oblique Degree reversing flow channel; 1230, transmission shaft; 130, sealing stop ring; 1310, air pipe; 1320, expansion and contraction air tire; 1321, installation groove; 140, elastic support ring; 150, elastic clamp; 160, installation gap; 170, rotation drive assembly; 1710, push drive; 1711, push rod; 1720, active rack; 1730, driven gear; 200, material delivery conduit. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0040] like Figures 1 to 3 As shown, a rotary reversing valve 100 of an embodiment includes an outer valve sleeve 110, an inner valve core 120 and a sealing stop ring 130 that can be inflated and deflated; a plurality of embedded sleeve openings 1020 are opened on the outer valve sleeve 110; the plurality of embedded sleeve openings 1020 are respectively connected to the rotation cavity 11a of the outer valve sleeve 110, and each embedded sleeve opening 1020 is respectively used to be sleeved on the connecting end of the corresponding material conveying conduit 200; the inner valve core 120 is rotatably arranged in the rotation cavity 11a of the outer valve sleeve 110 to connect any two embedded sleeve openings 1020; the sealing stop ring 130 is arranged in at least one embedded sleeve opening 1020 and is close to the inner valve core 120; the sealing stop ring 130 is used to seal between the inner wall of the embedded sleeve opening 1020 and the outer wall of the connecting end of the corresponding material conveying conduit 200, and when the sealing stop ring 130 is inflated and deflated, the sealing stop ring 130 abuts against or moves away from the inner valve core 120.

[0041] It can be understood that by arranging the sealing stop ring 130 in at least one embedded sleeve 1020 and close to the inner valve core 120, when the inner valve core 120 is connected to any two of the multiple embedded sleeves 1020, the sealing stop ring 130 can be inflated to expand and support the inner valve core 120, so that the inner valve core 120 can remain in a fixed state in the outer valve sleeve 110, and when reversing is required, the sealing stop ring 130 can be deflated to shrink the sealing stop ring 130 away from the inner valve core 120, so that the inner valve core 120 can be rotated to achieve rapid reversing.

[0042] It can be understood that by sealingly setting the sealing stop ring 130 between the inner wall of the embedded sleeve 1020 and the outer wall of the connecting end of the corresponding material delivery conduit 200, when the material delivery conduit 200 is connected to the inner valve core 120, the sealing stop ring 130 can well seal the gap between the inner wall of the embedded sleeve 1020 and the outer wall of the connecting end of the corresponding material delivery conduit 200, thereby avoiding leakage of fluid flowing out of or into the material delivery conduit 200 and causing waste.

[0043] It can be understood that compared with the reversing water valve in the prior art, the sealing stop ring 130 of the above-mentioned rotary reversing valve 100 can expand and support the inner valve core 120 after inflation, thereby increasing the friction of the inner valve core 120 and further significantly reducing the occurrence of the inner valve core 120 being deflected by the impact of the fluid.

[0044] Combination Figure 2 and Figure 3 As shown, in this embodiment, there are multiple sealing stop rings 130, and each sealing stop ring 130 is correspondingly arranged in one embedded sleeve 1020. It can be understood that by arranging a sealing stop ring 130 in each embedded sleeve 1020, when the inner valve core 120 is connected to any two embedded sleeves 1020 among the multiple embedded sleeves 1020, multiple sealing stop rings 130 can be inflated at the same time, and the multiple sealing stop rings 130 expand and jointly resist the inner valve core 120, thereby further increasing the friction force on the inner valve core 120, so that the inner valve core 120 can still remain in a fixed state when it is subjected to a larger impact of the fluid.

[0045] Combination Figure 2 and Figure 3 As shown, in one embodiment, a plurality of interlocking sleeves 1020 include a feed sleeve 1021 and at least two discharge sleeves 1022; two interconnected docking ports 1210 are respectively formed on the inner valve core 120; one docking port 1210 is arranged opposite to the feed sleeve 1021, and is used to be connected to the connecting end of the corresponding feed conduit 200; the other docking port 1210 is arranged opposite to any discharge sleeve 1022; a sealing stop ring 130 is arranged in the feed sleeve 1021, and is close to the corresponding docking port 1210; the sealing stop ring 130 is used to seal between the inner wall of the feed sleeve 1021 and the outer wall of the connecting end of the corresponding feed conduit 200, and to seal the end face of the corresponding docking port 1210 when inflated.

[0046] It can be understood that when one of the docking ports 1210 is arranged opposite to the feed sleeve 1021, and the other docking port 1210 is arranged opposite to a discharge sleeve 1022, the connecting end of the feed conduit 200 sleeved in the feed sleeve 1021 can be connected to one of the docking ports 1210, and by setting the sealing stop ring 130 between the outer wall of the connecting end of the feed conduit 200 and the inner wall of the feed sleeve 1021, the sealing stop ring 130 can fill and seal the gap between the connecting end of the feed conduit 200 and the inner wall of the feed sleeve 1021 after inflation, thereby preventing the fluid from leaking from the gap between the connecting end of the feed conduit 200 and the inner wall of the feed sleeve 1021.

[0047] It can be understood that by placing the sealing stop ring 130 close to the corresponding docking port 1210 and inflating the sealing stop ring 130, the sealing stop ring 130 can be expanded to hold the end face of the corresponding docking port 1210, thereby increasing the friction force on the inner valve core 120, so that the inner valve core 120 can remain in a fixed state when subjected to the impact of the fluid. At the same time, by holding the end face of the corresponding docking port 1210 with the sealing stop ring 130, the gap between the feed sleeve 1021 and the end face of the docking port 1210 can also be blocked, which can not only reduce the leakage of fluid into the inner cavity of the outer valve sleeve 110 to hinder the rotation of the inner valve core 120, but also reduce the waste caused by fluid leakage.

[0048] Specifically, an inclined reversing flow channel 1220 is provided in the inner valve core 120; one docking port 1210 is connected to the other docking port 1210 through the inclined reversing flow channel 1220; the central axis of the inclined reversing flow channel 1220 forms a first angle a with the central axes of the two docking ports 1210 respectively. 1 It can be understood that by opening the slope reversing flow channel 1220 in the inner valve core 120, one docking port 1210 can be connected to the other docking port 1210 through the slope reversing flow channel 1220, and at the same time, the central axes of the two docking ports 1210 form a first angle a with the central axis of the docking port 1210. 1 , so that the fluid flowing in from one docking port 1210 can be converted to a second angle a through the slope reversing flow channel 1220 2 Flow out from the other docking port 1210. Specifically, the first angle a 1 The degree range is 20° to 30°, and the second angle a 2 The degree of a can be known from the triangle interior angle theorem: 2 =180°-2a 1 , so that the second angle a 2 The range is 120° to 140°, but is not limited here.

[0049] Combination Figure 2 and Figure 3 As shown, in this embodiment, the sealing stop ring 130 includes an air pipe 1310 and an expanding and contracting air tire 1320; the expanding and contracting air tire 1320 is used to be sleeved on the connecting end of the material conveying conduit 200; the first end of the air pipe 1310 is connected to the inner cavity of the expanding and contracting air tire 1320, and the second end of the air pipe 1310 extends out of the embedded sleeve 1020, and the air pipe 1310 is used to inflate and release the gas in the inner cavity of the expanding and contracting air tire 1320. It can be understood that by sleeveing ​​the expanding and contracting air tire 1320 on the connecting end of the material delivery conduit 200, because the first end of the air delivery tube 1310 is connected to the inner cavity of the expanding and contracting air tire 1320, the second end of the air delivery tube 1310 extends out of the embedded sleeve 1020, so that air can easily enter the inner cavity of the expanding and contracting air tire 1320 from the outside through the air delivery tube 1310, or can be easily discharged to the outside of the expanding and contracting air tire 1320 through the air delivery tube 1310, which is convenient for users to use.

[0050] Combination Figure 3 As shown, specifically, an elastic expansion ring 140 is also provided in the embedded sleeve 1020, and the expansion and contraction air tire 1320 is provided with a mounting groove 1321 around the connecting end of the material conveying conduit 200; the elastic expansion ring 140 is clamped in the mounting groove 1321 and is used to be mounted on the connecting end of the material conveying conduit 200. It can be understood that because the expansion and contraction pneumatic tire 1320 is provided with a mounting groove 1321 surrounding the connecting end of the material delivery conduit 200, the elastic support ring 140 can be clamped in the mounting groove 1321 so that the elastic support ring 140 is sleeved on the connecting end of the material delivery conduit 200. When the expansion and contraction pneumatic tire 1320 is in an inflated state, the expansion and contraction pneumatic tire 1320 squeezes the elastic support ring 140 so that the elastic support ring 140 is deformed and pressed against the connecting end of the material delivery conduit 200, thereby further filling the gap between the expansion and contraction pneumatic tire 1320 and the connecting end of the material delivery conduit 200, and finally improving the air tightness between the splice sleeve 1020 and the connecting end of the material delivery conduit 200. At the same time, when the inflatable tire 1320 is in a deflated and contracted state, the elastic expansion ring 140 recovers and expands the inflatable tire 1320, so that a gap is maintained between the inflatable tire 1320 and the connecting end of the feed conduit 200, so that the feed conduit 200 can be easily removed from the embedded sleeve 1020 through the gap.

[0051] Combination Figure 3As shown, further, an elastic clamp 150 is also provided in the embedded sleeve 1020, and the elastic clamp 150 is used to be sleeved on the connecting end of the material conveying conduit 200, and an installation gap 160 is formed between the elastic clamp 150 and the inner valve core 120, and the expansion and contraction air tire 1320 is arranged in the installation gap 160. It can be understood that by making the elastic clamp 150 sleeved on the connecting end of the feed conduit 200, a stable installation gap 160 can be formed between the elastic clamp 150 and the inner valve core 120, and by setting the expanding and contracting air tire 1320 in the installation gap 160, the expanding and contracting air tire 1320 can be more securely set close to the inner valve core 120. After the expanding and contracting air tire 1320 is inflated, the expanding and contracting air tire 1320 expands to resist the elastic clamp 150, and is restricted by the elastic clamp 150 to more tightly hold the inner valve core 120, thereby increasing the friction of the expanding and contracting air tire 1320 on the inner valve core 120, so that the inner valve core 120 can still remain in a fixed state when it is subjected to a larger fluid impact.

[0052] Combination Figure 1 and Figure 2 As shown, in one embodiment, the rotary reversing valve 100 further includes a rotation drive assembly 170; the rotation drive assembly 170 is mounted on the first side of the outer valve sleeve 110, a rotation hole 1111 is provided on the first side of the outer valve sleeve 110, and the inner valve core 120 extends a transmission shaft 1230 into the rotation hole 1111; the transmission shaft 1230 passes through the rotation hole 1111 and is connected to the power output end of the rotation drive assembly 170. It can be understood that because the rotation drive assembly 170 and the rotation hole 1111 are arranged on the first side of the outer valve sleeve 110, by extending the transmission shaft 1230 of the inner valve core 120 from the rotation hole 1111 to the power output end of the rotation drive assembly 170, the inner valve core 120 can be automatically driven to rotate in the outer valve sleeve 110 through the rotation drive assembly 170, which is more intelligent and convenient to use.

[0053] Combination Figure 1 and Figure 2As shown, in this embodiment, the rotation drive assembly 170 includes a pushing driver 1710, an active rack 1720 and a driven gear 1730; the pushing driver 1710 is fixedly disposed on the first side surface of the outer valve sleeve 110, and the push rod 1711 of the pushing driver 1710 is disposed toward the transmission shaft 1230; the active rack 1720 is fixedly connected to the end of the push rod 1711 of the pushing driver 1710, and the driven gear 1730 is sleeved on the transmission shaft 1230, and the active rack 1720 is meshed with the driven gear 1730. It can be understood that by setting the push rod 1711 of the push driver 1710 toward the transmission shaft 1230 and sleeved on the driven gear 1730, the active rack 1720 fixed at the end of the push rod 1711 of the push driver 1710 can tightly engage with the driven gear 1730, and then the inner valve core 120 can be driven to rotate more efficiently by the push driver 1710.

[0054] Combination Figure 1 and Figure 2 As shown, in one embodiment, the outer valve sleeve 110 includes a first side plate 1110, a second side plate 1120, a middle shell 1130 and a plurality of connecting rods 1140; the middle shell 1130 is arranged between the first side plate 1110 and the second side plate 1120, and a disc-shaped through groove is opened in the middle shell 1130, and the first side plate 1110 is opposite to the second side plate 1120 through the disc-shaped through groove; a plurality of connecting rods 1140 are arranged around the middle shell 1130, and the first side plate 1110 is connected to the second side plate 1120 through the plurality of connecting rods 1140, so that the first side plate 1110, the disc-shaped through groove and the second side plate 1120 form a rotating chamber 11a; the feed sleeve 1021 and each discharge sleeve 1022 are respectively opened on the middle shell 1130. It can be understood that by arranging the middle shell 1130 between the first side plate 1110 and the second side plate 1120, the first side plate 1110 can be opposite to the second side plate 1120 through the disc-shaped through groove of the middle shell 1130, and because a plurality of connecting rods 1140 are arranged around the middle shell 1130, the first side plate 1110 is connected to the second side plate 1120 through a plurality of connecting rods 1140, so that the disc-shaped through groove can form a tightly structured rotating cavity 11a together with the first side plate 1110 and the second side plate 1120, thereby enabling the inner valve core 120 to rotate more smoothly and stably in the rotating cavity 11a. At the same time, the outer valve sleeve 110 adopts the above structure, which has a greater structural strength and can better protect the inner valve core 120.

[0055] Combination Figure 4As shown, the present disclosure further provides a flow diversion kit 10, comprising a material delivery conduit 200 and a swivel reversing valve 100 of any of the above-mentioned embodiments; an engaging sleeve 1020 is sleeved on the communication end of the material delivery conduit 200, and a sealing stop ring 130 is sealingly disposed between the outer wall of the communication end of the material delivery conduit 200 and the inner wall of the corresponding engaging sleeve 1020. It can be understood that by applying the swivel reversing valve 100 of the present disclosure to the material delivery conduit 200, when the sealing stop ring 130 is inflated, the sealing stop ring 130 can expand to resist the inner valve core 120, thereby increasing the friction of the inner valve core 120, and further significantly reducing the occurrence of the inner valve core 120 being deflected by the impact of the fluid.

[0056] Compared with the prior art, the present invention has at least the following advantages:

[0057] 1) By setting the sealing stop ring 130 in at least one embedded sleeve 1020 and close to the inner valve core 120, when the inner valve core 120 is connected to any two of the multiple embedded sleeves 1020, the sealing stop ring 130 can be inflated to expand and hold the inner valve core 120, so that the inner valve core 120 can be kept in a fixed state in the outer valve sleeve 110. When reversing is required, the sealing stop ring 130 can be deflated to shrink the sealing stop ring 130 away from the inner valve core 120, so that the inner valve core 120 can be rotated to achieve rapid reversing.

[0058] 2) By sealingly setting the sealing stop ring 130 between the inner wall of the embedded sleeve 1020 and the outer wall of the corresponding connecting end of the feed conduit 200, when the feed conduit 200 is connected to the inner valve core 120, the sealing stop ring 130 can well block the gap between the inner wall of the embedded sleeve 1020 and the outer wall of the connecting end of the corresponding feed conduit 200, thereby avoiding leakage of fluid flowing out of or into the feed conduit 200 and causing waste.

[0059] 3) Compared with the reversing water valve in the prior art, the sealing stop ring 130 of the above-mentioned rotary reversing valve 100 can expand and hold the inner valve core 120 after being inflated, thereby increasing the friction of the inner valve core 120 and further significantly reducing the occurrence of the inner valve core 120 being deflected by the impact of the fluid.

[0060] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A rotary reversing valve, comprising an outer valve sleeve and an inner valve core; The outer valve sleeve is provided with a plurality of embedded sleeve openings; the plurality of embedded sleeve openings are respectively connected to the rotation cavity of the outer valve sleeve, and each of the embedded sleeve openings is respectively used to be sleeved on the communication end of the corresponding material conveying conduit; the inner valve core is rotatably arranged in the rotation cavity of the outer valve sleeve to connect any two of the embedded sleeve openings; It is characterized in that The rotary reversing valve also includes a sealing stop ring that can be inflated and deflated; The sealing stop ring is arranged in at least one of the embedded sleeves and is close to the inner valve core; the sealing stop ring is used to seal between the inner wall of the embedded sleeve and the outer wall of the corresponding connecting end of the feed conduit, and when the sealing stop ring is inflated or deflated, it abuts against or moves away from the inner valve core.

2. The rotary reversing valve according to claim 1, characterized in that: There are multiple sealing stop rings, and each sealing stop ring is correspondingly arranged in one of the embedded sleeves.

3. The rotary reversing valve according to claim 1, characterized in that: The plurality of said inlay sleeves include a feed sleeve and at least two discharge sleeves; Two interconnected docking ports are respectively formed on the inner valve core; one of the docking ports is arranged opposite to the feed sleeve and is used to be connected to the corresponding connecting end of the feed conduit; the other docking port is arranged opposite to any one of the discharge sleeves; the sealing stop ring is arranged in the feed sleeve and is close to the corresponding docking port; the sealing stop ring is used to seal between the feed sleeve and the inner wall of the corresponding connecting end of the feed conduit, and to seal the end face of the corresponding docking port when inflated.

4. The rotary reversing valve according to claim 3, characterized in that: An inclined reversing flow channel is provided in the inner valve core; one of the docking ports is connected to the other docking port through the inclined reversing flow channel; the central axis of the inclined reversing flow channel forms a first angle with the central axes of the two docking ports respectively.

5. The rotary reversing valve according to claim 1, characterized in that: The sealing stop ring includes an air delivery pipe and an expansion and contraction air tire; The inflatable pneumatic tube is used to be sleeved on the connecting end of the material conveying conduit; the first end of the air delivery tube is connected to the inner cavity of the inflatable pneumatic tube, and the second end of the air delivery tube extends out of the embedded sleeve, and the air delivery tube is used to inflate and discharge the gas in the inner cavity of the inflatable pneumatic tube.

6. The rotary reversing valve according to claim 5, characterized in that: An elastic expansion ring is also arranged in the embedded sleeve, and the expansion and contraction air tire is provided with an installation groove around the connecting end of the material conveying conduit; the elastic expansion ring is clamped in the installation groove and is used to be sleeved on the connecting end of the material conveying conduit.

7. The rotary reversing valve according to claim 5, characterized in that: An elastic clamp is also arranged in the embedded sleeve, and the elastic clamp is used to be sleeved on the connecting end of the material conveying conduit. An installation gap is formed between the elastic clamp and the inner valve core, and the expansion and contraction air tire is arranged in the installation gap.

8. The rotary reversing valve according to claim 1, characterized in that: The rotary reversing valve also includes a rotation drive assembly; The rotation drive assembly is installed on the first side surface of the outer valve sleeve. A rotation hole is opened on the first side surface of the outer valve sleeve. The inner valve core extends a transmission shaft into the rotation hole. The transmission shaft passes through the rotation hole and is connected to the power output end of the rotation drive assembly.

9. The rotary reversing valve according to claim 8, characterized in that: The rotation drive assembly includes a driving driver, a driving rack and a driven gear; The pushing driver is fixedly arranged on the first side surface of the outer valve sleeve, and the push rod of the pushing driver is arranged toward the transmission shaft; the active rack is fixedly connected to the end of the push rod of the pushing driver, the driven gear is sleeved on the transmission shaft, and the active rack is meshed with the driven gear.

10. A flow diversion kit, characterized in that: It comprises a material delivery conduit and a rotary reversing valve as claimed in any one of claims 1 to 9; One of the embedded sleeves is sleeved on the connecting end of the material conveying conduit, and the sealing stop ring is sealingly arranged between the outer wall of the connecting end of the material conveying conduit and the corresponding inner wall of the embedded sleeve.

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