CN219299994U

CN219299994U - Reverse flow prevention reversing angle valve

Info

Publication number: CN219299994U
Application number: CN202320788289.2U
Authority: CN
Inventors: 吴高峰; 陈慧溪
Original assignee: Taizhou Aidi Xishengda Tube Co ltd
Current assignee: Taizhou Aidi Xishengda Tube Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-07-04
Anticipated expiration: 2033-04-11

Abstract

The utility model provides an anti-backflow reversing angle valve, and belongs to the technical field of valve manufacturing. The reverse flow prevention reversing angle valve comprises a valve body, a valve core and a hand wheel, wherein the outer peripheral surface of the valve body is provided with a connecting part and a connecting part is provided with a communication hole II, the middle part of the outer peripheral surface of the valve body is also provided with three connecting pipe parts, each connecting pipe part is provided with a communication hole III, the connecting parts and the three connecting pipe parts are circumferentially and uniformly distributed on the outer surface of the valve body, the bottom of the valve core is provided with water inlets, the valve core is radially provided with a first through liquid hole, a second through liquid hole and a third through liquid hole which are sequentially arranged at intervals of 90 degrees and are mutually communicated, the first through liquid hole, the second through liquid hole and the third through liquid hole are all communicated with the water inlets, the axes of the first through liquid hole, the second through liquid hole III, the communication hole II and the three communication holes III are all in the same plane, the top and the bottom of the outer peripheral surface of the valve core are embedded with sealing rings, and a reverse flow prevention check valve core is arranged in the water inlets or the communication hole I. The utility model has the functions of reverse flow prevention and reversing and has good practicability.

Description

Reverse flow prevention reversing angle valve

Technical Field

The utility model belongs to the technical field of valve manufacturing, and relates to an angle valve, in particular to an anti-backflow reversing angle valve.

Background

The angle valve is an angle stop valve, can be used for controlling the water flow, and is an important water heating accessory. For example, chinese patent literature discloses a split angle valve [ application number: 202222655468.7; authorized bulletin number: CN218564508U ], it includes the valve body, locate the water inlet joint of valve body lower extreme and locate the water outlet joint on valve body right side, the water outlet joint link up with the valve body inner space mutually through the apopore, be equipped with the baffle that is located the apopore below in the valve body, the baffle center is equipped with opens the hole, be equipped with rather than assorted headstock gear in the valve body, it shields the sealing to open and close the hole to open and close the piece lower extreme, it is equipped with the valve rod to open and close the piece upper end, the valve rod upper end upwards wears out to the valve body outside and is equipped with the hand wheel, water inlet joint outer wall, water outlet joint outer wall all are equipped with the external screw thread, be equipped with the spiro union hole down in the valve body lower extreme, water inlet joint upper end is equipped with the last spiro union of spiro union in the lower spiro union hole, the valve body right side is equipped with the right spiro union hole that link up mutually with the apopore.

The split angle valve can be used for split processing, is convenient to process, can be replaced in a split mode, and can reduce the use cost, but like other angle valves in the prior art, the split angle valve cannot realize pipeline reversing (changing pipeline flow direction) operation, does not have a backflow prevention function, and can enter a water inlet pipeline to cause pollution.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides an anti-backflow reversing angle valve with a reversing function.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides an anti-backflow reversing angle valve, includes valve body, case and hand wheel, the case be located the valve body, the case have axial extension and stretch out the pole portion on valve body top, pole portion be connected with the hand wheel, the bottom of valve body has the intercommunicating pore first, its characterized in that, the valve body outer peripheral face have connecting portion and connecting portion have the intercommunicating pore second in the valve body inner chamber, the middle part department of the outer peripheral face of valve body still has three takeover portions and every takeover portion all has the intercommunicating pore third in the valve body inner chamber, connecting portion and three takeover portion circumference equipartition in the valve body surface, the case bottom have the inlet port that communicates in intercommunicating pore first, the case radially set up the through-hole that sets up and mutually communicate by 90 ° in proper order, through-hole second and through-hole third all communicate in the inlet port, through-hole second, through-hole third, the axis of intercommunicating pore second and three intercommunicating pore third all is in the coplanar, the top and bottom department of outer peripheral face all are equipped with the sealing washer, case or first in be equipped with the case of preventing backflow.

In the above reverse flow prevention reversing angle valve, the valve core is embedded with a sealing ring I sealed on the inner wall of the valve body at the periphery of the first liquid passing hole, the valve body is embedded with a sealing ring II sealed on the inner wall of the valve body at the periphery of the second liquid passing hole, and the valve body is embedded with a sealing ring III sealed on the inner wall of the valve body at the periphery of the third liquid passing hole.

In the reverse flow prevention reversing angle valve, the water inlet hole is internally provided with the check valve core, and one part of the communication hole is provided with the quick connection structure for quick connection of the pipeline.

In the reverse flow prevention reversing angle valve, the quick connection structure comprises the connecting sleeve, the clamping ring and the pressing cap, the connecting sleeve is axially inserted in the first communication hole, an insertion cavity for inserting the end part of the pipeline is formed between the outer wall of the connecting sleeve and the inner wall of the connecting hole, the inner edge of the clamping ring is provided with a circle of teeth inclining towards the water inlet side, the inner wall of the first communication hole is embedded with the sealing gasket, the pressing cap is in threaded connection with the valve body, the inner wall of the pressing cap is provided with a radially inwards protruding pressing edge, the outer edge of the clamping ring is clamped by the sealing gasket and the pressing edge, and the inner wall of the sealing gasket is provided with a conical surface arranged towards the teeth.

In the reverse flow prevention reversing angle valve, the O-shaped ring is embedded in the inner wall of the valve body, the sealing gasket is positioned between the O-shaped ring and the clamping ring, the pressing cap is inserted with a cylindrical unlocking sleeve, the outer wall of the inner end of the unlocking sleeve is provided with a radially outwards protruding blocking shoulder, the outer wall of the blocking shoulder is a conical surface, and the outer end of the pressing cap is inwards folded to form a blocking edge for the blocking shoulder to abut against.

In the reverse flow prevention reversing angle valve, the connecting part is connected with the screw cap through the external thread, the screw cap and the connecting part are provided with the clamping ring with the notch, the screw cap is provided with the flange for the outer end of the clamping ring to abut against, the inner end of the clamping ring is inserted into the connecting part, the inner wall of the port of the connecting part is a conical surface, and the outer wall of the clamping ring is a conical surface.

In the reverse flow prevention reversing angle valve, the top surface of the hand wheel is provided with three arrow marks, the three arrow marks are respectively parallel to the axes of the first liquid passing hole, the second liquid passing hole and the third liquid passing hole, and the heads of the three arrows are all directed to the outer side of the hand wheel.

In the reverse flow prevention reversing angle valve, the top surface of the valve body is provided with four ribs which are circumferentially and uniformly distributed and have isosceles triangle-shaped longitudinal sections, the axes of the four ribs are respectively parallel to the axes of the connecting part and the three connecting pipe parts, and the bottom surface of the hand wheel is provided with a groove for embedding the ribs.

Compared with the prior art, when this prevent reverse flow reversing angle valve uses, when the intercommunicating pore is for the end of intaking, the check valve core plays the non return effect, avoids flowing back to the intercommunicating pore first and causing water intake pipe to pollute, and when the intercommunicating pore is for the end of intaking, the check valve core is in closed state, and this prevent reverse flow reversing angle valve can change the pipeline flow direction, possesses the switching-over function, simple operation.

Drawings

Fig. 1 is a structural sectional view of the reverse flow prevention reversing angle valve.

Fig. 2 is a top view of the structure of the reverse flow prevention reversing angle valve.

Fig. 3 is a longitudinal sectional view of the valve body in the reverse flow prevention reversing angle valve.

Fig. 4 is a transverse cross-sectional view of the valve spool in the present reverse flow prevention reversing angle valve.

Fig. 5 is a perspective view of the valve body of the reverse flow prevention reversing angle valve.

Fig. 6 is a perspective view of the hand wheel of the reverse flow prevention reversing angle valve.

In the figure, 1, a valve body; 1a, a first communication hole; 1b, a connecting part; 1b1, a communication hole II; 1c, a connecting pipe part; 1c1, a communication hole III; 1d, convex edges; 2. a valve core; 2a, a rod part; 2b, water inlet holes; 2c, a first liquid passing hole; 2d, passing through the liquid hole II; 2e, a liquid passing hole III; 3. a hand wheel; 3a, grooves; 4. a seal ring; 5. a check valve core; 6. a first sealing ring; 7. a second sealing ring; 8. a third sealing ring; 9. connecting sleeves; 10. a collar; 11. pressing the cap; 11a, edge pressing; 11b, a blocking edge; 12. a sealing gasket; 13. an O-ring; 14. unlocking the sleeve; 15. a screw cap; 16. a clasp; 17. the arrows indicate.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the reverse flow prevention reversing angle valve comprises a valve body 1, a valve core 2 and a hand wheel 3, wherein the valve core 2 is positioned in the valve body 1, the valve core 2 is provided with a rod part 2a which extends axially and stretches out of the top end of the valve body 1, the rod part 2a is connected with the hand wheel 3, in the embodiment, the rod part 2a is inserted into the hand wheel 3, the outer wall of the rod part 2a is provided with a positioning plane, and the hand wheel 3 is provided with a hole pattern for the insertion of the rod part 2a and the rod part 2a are matched to realize circumferential fixation. The bottom of the valve body 1 is provided with a first communication hole 1a, the outer peripheral surface of the valve body 1 is provided with a connecting part 1b, the connecting part 1b is provided with a second communication hole 1b1 communicated with the inner cavity of the valve body 1, the middle part of the outer peripheral surface of the valve body 1 is also provided with three connecting pipe parts 1c, each connecting pipe part 1c is provided with a third communication hole 1c1 communicated with the inner cavity of the valve body 1, the connecting part 1b and the three connecting pipe parts 1c are circumferentially and uniformly distributed on the outer surface of the valve body 1, the bottom of the valve core 2 is provided with a water inlet hole 2b communicated with the first communication hole 1a, the valve core 2 is radially provided with a first through hole 2c, a second through hole 2d and a third through hole 2e which are sequentially arranged at intervals of 90 degrees and are mutually communicated, the first through hole 2c, the second through hole 2d and the third through hole 2e are communicated with the water inlet hole 2b, the first through hole 2c, the second through hole 2d, the third through hole 2e, the third through hole 2b, the communication hole 2b and the axes of the three communication holes 1c1 are all on the same plane, the top and the bottom of the outer peripheral surface of the valve core 2 are embedded with 4, and the bottom of the valve core is provided with a sealing ring 5 for preventing backflow in the water inlet hole 1 a.

When the reverse flow prevention reversing angle valve is used, the valve core 2 is driven to turn around by rotating the hand wheel 3 so as to change the communication orientation of the three communication holes three 1c1, the connecting pipe part 1c and the connecting part 1 b; when the valve core 2 rotates, the two sealing rings 4 are always sealed on the inner wall of the valve body 1, so that the tightness is ensured, and leakage is avoided. When the first communication hole 1a is a water inlet end, water flows into the water inlet hole 2b, at the moment, three communication holes three 1c1 are respectively communicated with the corresponding connecting pipe parts 1c, the three connecting pipe parts 1c respectively discharge water, and if backflow occurs, the check valve core 5 plays a role in check, so that the backflow is prevented from returning to the first communication hole 1a to cause pollution of a water inlet pipeline; when the communication hole II 1b1 is a water inlet end, the check valve core 5 is in a closed state, water cannot flow out from the water inlet hole 2b, the hand wheel 3 is rotated to drive the valve core 2 to turn round, when the first liquid passing hole 2c is communicated with the communication hole II 1b1, the second liquid passing hole 2d and the third liquid passing hole 2e correspondingly communicate with the two communication holes III 1c1 water, when the second liquid passing hole 2d is communicated with the communication hole II 1b1, the first liquid passing hole 2c and the third liquid passing hole 2e correspondingly communicate with the communication hole III 1 water, and when the third liquid passing hole 2e is communicated with the communication hole II 1b1, the first liquid passing hole 2c and the second liquid passing hole 2d correspondingly communicate with the two communication holes III 1c1 water, so that the backflow prevention reversing angle valve can change pipeline flow direction, has a reversing function and is relatively simple and convenient to operate.

Further, the valve core 2 is embedded with a first sealing ring 6 sealed on the inner wall of the valve body 1 at the periphery of the first through-liquid hole 2c, the valve body 1 is embedded with a second sealing ring 7 sealed on the inner wall of the valve body 1 at the periphery of the second through-liquid hole 2d, and the valve body 1 is embedded with a third sealing ring 8 sealed on the inner wall of the valve body 1 at the periphery of the third through-liquid hole 2 e. Thus, the sealing performance of the peripheries of the first through liquid hole 2c, the second through liquid hole 2d and the third through liquid hole 2e is good, and leakage is further avoided.

The water inlet hole 2b is provided with a check valve core 5, and the first communicating hole 1a is provided with a quick connection structure for quick connection of the pipeline. The pipeline is connected with the valve body 1 conveniently, time-saving and labor-saving, the check valve core 5 is of the prior art, the specific structure is not repeated here, the inner wall of the water inlet hole 2b is embedded with a clamp spring in the embodiment, the outer wall of the check valve core 5 is provided with an annular groove for embedding the clamp spring, and the check valve core 5 is fixed in the water inlet hole 2 b.

The quick-connection structure comprises a connecting sleeve 9, a clamping ring 10 and a pressing cap 11, wherein the connecting sleeve 9 is axially inserted in a first communication hole 1a, an insertion cavity for inserting the end part of a pipeline is formed between the outer wall of the connecting sleeve 9 and the inner wall of a connecting hole, the inner edge of the clamping ring 10 is provided with a circle of teeth inclining towards the side of a water inlet hole 2b, a sealing gasket 12 is embedded in the inner wall of the first communication hole 1a, the pressing cap 11 is in threaded connection with the valve body 1, the inner wall of the pressing cap 11 is provided with a radially inwards protruding pressing edge 11a, the outer edge of the clamping ring 10 is clamped by the sealing gasket 12 and the pressing edge 11a, and the inner wall of the sealing gasket 12 is provided with a conical surface arranged towards the teeth. During connection, the end part of the pipeline is inserted into the insertion cavity between the outer wall of the connecting sleeve 9 and the inner wall of the connecting hole, the elastic force of the tooth is overcome at the end part of the pipeline until the end part of the pipeline is abutted against the inner end of the connecting sleeve 9, the tooth is locked on the outer wall of the pipeline by the deformation restoring force of the tooth, so that the pipeline cannot move outwards, the aim of quick connection is fulfilled, the conical surface of the sealing gasket 12 provides a space for the tooth, and the sealing gasket 12 also plays a role in sealing.

The inner wall of the valve body 1 is embedded with an O-shaped ring 13, a sealing gasket 12 is positioned between the O-shaped ring 13 and the clamping ring 10, a cylindrical unlocking sleeve 14 is inserted into the pressing cap 11, a radially outwards protruding blocking shoulder is arranged on the outer wall of the inner end of the unlocking sleeve 14, the outer wall of the blocking shoulder is a conical surface, and the outer end of the pressing cap 11 is inwards folded to form a blocking edge 11b for the blocking shoulder to be abutted against. The O-shaped ring 13 is used for sealing the outer wall of the inserted pipeline, so that the tightness is further improved, leakage is avoided, when the pipeline is required to be disassembled, the unlocking sleeve 14 is pressed, the blocking shoulder is abutted against the teeth and enables the teeth to deform towards the side of the sealing gasket 12, at the moment, the teeth are separated from the pipeline, the pipeline is pulled out, and the pipeline is convenient to disassemble.

The connecting part 1b is connected with a nut 15 through external threads, a clamping ring 16 with a notch is arranged between the nut 15 and the connecting part 1b, the nut 15 is provided with a flange for the outer end of the clamping ring 16 to abut against, the inner end of the clamping ring 16 is inserted into the connecting part 1b, the inner wall of a port of the connecting part 1b is a conical surface, and the outer wall of the clamping ring 16 is a conical surface. When the connecting part 1b is connected with a pipeline, the pipeline is inserted into the screw cap 15 and the clamping ring 16, then the screw cap 15 and the clamping ring 16 are tightly pressed by the flange, the outer wall of the clamping ring 16 and the inner wall of the port of the connecting part 1b are in conical surface fit, the clamping ring 16 is contracted to lock the pipeline, and the pipeline is convenient to connect.

The top surface of the hand wheel 3 is provided with three arrow marks 17, the three arrow marks 17 are respectively parallel to the axes of the first liquid passing hole 2c, the second liquid passing hole 2d and the third liquid passing hole 2e, and the heads of the three arrows are all directed to the outer side of the hand wheel 3. The three arrows respectively indicate the communication condition of the first through liquid hole 2c, the second through liquid hole 2d and the third through liquid hole 2e, so that a user can know the water flow direction conveniently, and the operation is convenient.

As shown in fig. 5 and 6, the top surface of the valve body 1 has four ribs 1d which are circumferentially uniformly distributed and have an isosceles triangle shape in longitudinal section, the axes of the four ribs 1d are respectively parallel to the axes of the connecting portion 1b and the three connecting tube portions 1c, and the bottom surface of the hand wheel 3 has a groove 3a into which the rib 1d is inserted. Thus, the convex rib 1d is matched with the groove 3a, so that the hand wheel 3 is positioned accurately after rotating, and the first through liquid hole 2c, the second through liquid hole 2d and the third through liquid hole 2e are in a full-open state.

What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims

1. The utility model provides an anti-backflow reversing angle valve, includes valve body (1), case (2) and hand wheel (3), case (2) be located valve body (1), case (2) have axial extension and stretch out pole portion (2 a) on valve body (1) top, pole portion (2 a) be connected with hand wheel (3), the bottom of valve body (1) has communication hole one (1 a), characterized in that, valve body (1) outer peripheral face have connecting portion (1 b) and connecting portion (1 b) have communication hole two (1 b 1) in valve body (1) inner chamber, the middle part department of the outer peripheral face of valve body (1) still has three takeover portion (1 c) and every takeover portion (1 c) all have communication hole three (1 c 1) in valve body (1) inner chamber, connecting portion (1 b) and three takeover portion (1 c) circumference are in valve body (1) surface, case (2) bottom have communication hole one (1 a) in communication hole, radially set up connecting portion (2 b) and connecting portion (1 b) have communication hole two (1 b 1) in the inner chamber of valve body (1), the middle part department of the outer peripheral face of valve body (1) still has three takeover portion (1 c) and three takeover portion (1 c) all have communication hole three (1 c) in proper order, one side of valve body (1 c) inner chamber 2 d) inner chamber liquid and three liquid through hole (2 d) and liquid through hole (2 d) one water through hole (2 d) and water through hole e) one water through hole (2 d in order The axes of the second through hole (2 d), the third through hole (2 e), the second through hole (1 b 1) and the third through hole (1 c 1) are all on the same plane, sealing rings (4) are embedded at the top and the bottom of the outer peripheral surface of the valve core (2), and a check valve core (5) for preventing backflow is arranged in the water inlet hole (2 b) or the first through hole (1 a).

2. The reverse flow prevention reversing angle valve according to claim 1, wherein the valve core (2) is embedded with a sealing ring I (6) sealed on the inner wall of the valve body (1) at the periphery of the first liquid passing hole (2 c), the valve body (1) is embedded with a sealing ring II (7) sealed on the inner wall of the valve body (1) at the periphery of the second liquid passing hole (2 d), and the valve body (1) is embedded with a sealing ring III (8) sealed on the inner wall of the valve body (1) at the periphery of the third liquid passing hole (2 e).

3. The reverse flow prevention reversing angle valve according to claim 2, wherein the water inlet hole (2 b) is provided with a check valve core (5), and the first communicating hole (1 a) is provided with a quick connection structure for quick connection of a pipeline.

4. The reverse flow prevention reversing angle valve according to claim 3, wherein the quick connection structure comprises a connecting sleeve (9), a clamping ring (10) and a pressing cap (11), the connecting sleeve (9) is axially inserted into a first communication hole (1 a), an insertion cavity for inserting a pipe end is formed between the outer wall of the connecting sleeve (9) and the inner wall of the connecting hole, teeth inclining towards the water inlet hole (2 b) are formed in the inner edge of the clamping ring (10), a sealing gasket (12) is embedded in the inner wall of the first communication hole (1 a), the pressing cap (11) is in threaded connection with the valve body (1), a radially inward protruding pressing edge (11 a) is formed in the inner wall of the pressing cap (11), the outer edge of the clamping ring (10) is clamped by the sealing gasket (12) and the pressing edge (11 a), and a conical surface arranged towards the teeth is formed in the inner wall of the sealing gasket (12).

5. The reverse flow prevention reversing angle valve according to claim 4, wherein an O-shaped ring (13) is embedded in the inner wall of the valve body (1), the sealing gasket (12) is located between the O-shaped ring (13) and the clamping ring (10), the pressing cap (11) is inserted with a cylindrical unlocking sleeve (14), the outer wall of the inner end of the unlocking sleeve (14) is provided with a radially outwards protruding blocking shoulder, the outer wall of the blocking shoulder is a conical surface, and the outer end of the pressing cap (11) is inwards folded to form a blocking edge (11 b) for the blocking shoulder to be abutted against.

6. The reverse flow prevention reversing angle valve according to claim 5, wherein the connecting portion (1 b) is connected with a nut (15) through external threads, a clamping ring (16) with a notch is arranged between the nut (15) and the connecting portion (1 b), the nut (15) is provided with a flange for abutting against the outer end of the clamping ring (16), the inner end of the clamping ring (16) is inserted into the connecting portion (1 b), the inner wall of a port of the connecting portion (1 b) is a conical surface, and the outer wall of the clamping ring (16) is a conical surface.

7. The reverse flow prevention reversing angle valve according to claim 6, wherein the top surface of the hand wheel (3) is provided with three arrow marks (17), the three arrow marks (17) are respectively parallel to the axes of the first through-liquid hole (2 c), the second through-liquid hole (2 d) and the third through-liquid hole (2 e), and the heads of the three arrows are all directed to the outer side of the hand wheel (3).

8. The reverse flow prevention reversing angle valve according to claim 7, wherein the top surface of the valve body (1) is provided with four ribs (1 d) which are circumferentially and uniformly distributed and have isosceles triangle-shaped longitudinal sections, the axes of the four ribs (1 d) are respectively parallel to the axes of the connecting part (1 b) and the three connecting pipe parts (1 c), and the bottom surface of the hand wheel (3) is provided with a groove (3 a) for embedding the ribs (1 d).