Multifunctional angle valve with water hammer
By designing a multi-function angle valve with water hammer, adopting a detachable opening and closing structure and water hammer elimination structure, the problems of the difficulty of disassembly and assembly and water hammer phenomenon of traditional angle valves when they are quickly opened are solved, and the rapid replacement and multi-functional operation of the angle valve are achieved, which improves safety and replacement efficiency.
Patent Information
- Application Number
- CN202420858133.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-24
AI Technical Summary
The traditional angle valve needs to be replaced when it is opened quickly, which is troublesome and expensive to disassemble and install. There are safety hazards and water quality pollution caused by water hammer phenomenon and water flow return.
A multi-functional water hammer angle valve is designed, adopting a detachable opening and closing structure, which can quickly replace it through the connection between the valve stem seat and the upper joint. It is equipped with a water hammer elimination structure and a check structure to buffer water pressure and prevent water flow from flowing back.
It realizes rapid replacement and multi-functional operation of angle valves, eliminates the phenomenon of water hammer, avoids water flow backflow, and reduces replacement costs and safety hazards.
Smart Images
Figure CN222687380U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an angle valve, in particular to a multifunctional angle valve with water hammer. Background Art
[0002] Angle valve is an angle stop valve that can realize the opening and closing of water flow. When the traditional angle valve needs to be opened, the hand wheel can be turned. When the hand wheel is turned, the valve stem rotates synchronously, and the lower end of the valve stem is screwed into the screw hole of the lifting column. The opening and closing part is arranged at the lower end of the lifting column. As the valve stem rotates, the lifting column screwed with the valve stem rotates synchronously, and the lifting column cannot rotate due to the restriction of the guide hole on the valve stem seat. Therefore, the lifting column will convert the rotating force into its own up and down movement force, thereby realizing the up and down movement of the opening and closing part. When the opening and closing part moves up, the water inlet hole that was originally blocked and sealed by the opening and closing part gradually opens to provide water for the water. As water flows, the opening method of the angle valve causes the upward movement speed of the opening and closing part to be greatly affected by the internal thread of the screw hole on the lifting column. Only after the valve stem rotates one circle can the opening and closing part slowly move up to a height, which seriously affects the opening efficiency of the angle valve. In actual use, due to different water requirements, it is sometimes necessary to open the angle valve quickly. Traditional angle valves are limited by their own opening and closing structure. If they are to be opened quickly, they can only be replaced with different types of angle valves. At this time, the old angle valve needs to be removed from the pipeline of the conveying system, and then the new angle valve needs to be installed. Not only is disassembly and assembly extremely troublesome, but it also leads to a serious increase in replacement costs.
[0003] At the same time, the traditional angle valve only has a single opening and closing function, and in the actual water conveying process, it is very easy to encounter water hammer phenomenon. Without any buffering effect, the strong impact force of the water flow can easily cause damage to the internal components of the angle valve and the pipes connected to the angle valve, posing certain safety hazards. In the process of conveying water flow, if the water pressure changes, it is very easy to cause the original normal flow of water to flow back, and the backflow of water can easily cause water pollution and endanger the personal health of users. Summary of the invention
[0004] The utility model aims to solve the existing technical problem and provide a multifunctional angle valve with water hammer, which can change the opening efficiency without disassembling itself from the pipeline of the water supply system, effectively reducing the trouble of disassembly and replacement cost, and can effectively eliminate the water hammer phenomenon when it occurs, and can also effectively avoid the backflow of normally flowing water.
[0005] The technical solution adopted by the utility model to solve the above technical problems is:
[0006] The utility model discloses a multifunctional angle valve with water hammer, comprising a valve body, a water inlet joint arranged at the lower side of the valve body and a water outlet joint arranged at the right side of the valve body, wherein the left side of the valve body is provided with a left joint which is communicated with the internal space thereof; the left joint is connected with a water hammer elimination structure which matches with it; the inner wall of the lower side of the valve body is provided with a water inlet hole which is communicated with the water inlet joint; the water inlet hole is coaxial with the water inlet joint, and the diameter of the water inlet hole is smaller than the inner diameter of the water inlet joint; the upper side of the valve body is provided with an upper joint which is communicated with the internal space thereof, and the upper joint is coaxial with the water inlet joint; a valve stem seat is screwed in the upper joint; an opening and closing structure which matches with the water inlet hole is provided in the valve stem seat; the opening and closing structure which matches with the water inlet hole is provided in the opening and closing structure The closing structure includes a valve stem hole arranged at the center of the upper end surface of the valve stem seat, and a valve stem matching therewith is arranged in the valve stem hole; the upper end of the valve stem passes upward to the outside of the valve stem seat and is provided with a handwheel; a movable hole is arranged at the center of the lower surface of the valve stem seat and is connected to the valve stem hole, and the diameter of the movable hole is larger than the diameter of the valve stem hole; a limiting portion is arranged at the lower end of the valve stem and is fitted with the bottom of the movable hole; an annular groove is arranged on the outer wall of the valve stem and is located above the valve stem hole; an elastic part matching therewith is arranged in the annular groove, and one side of the elastic part has an elastic opening; the outer edge of the elastic part protrudes out of the annular groove and is fitted with the upper surface of the valve stem seat; a check structure matching therewith is arranged in the water outlet joint.
[0007] The opening and closing structure also includes water outlet holes on the left and right sides of the outer wall of the valve stem seat; the movable hole is connected with the left joint through the left water outlet hole; the movable hole is connected with the water outlet joint through the right water outlet hole; the lower end of the valve stem seat is adjacent to the lower inner wall of the valve body; a sealing gasket coaxial with it is provided in the movable hole, the sealing gasket is annular, the lower end of the sealing gasket passes downward to the outside of the movable hole and fits with the lower inner wall of the valve body, and the lower end port of the sealing gasket encloses the upper end of the water inlet hole; a limiting member is provided in the movable hole and fits with the upper end surface of the sealing gasket; the left and right sides of the limiting member are provided with mutually Symmetrical water supply holes; the left and right sides of the inner wall of the movable hole are provided with locking notches that are connected with the lower part of the water outlet hole; the left and right sides of the outer wall of the limiting member are provided with locking blocks that match the locking notches; the center of the upper surface of the limiting member is provided with a matching opening and closing member; the front and rear ends of the opening and closing member are provided with symmetrical opening and closing heads, and the opening and closing heads are fan-shaped; a positioning groove is provided on the upper surface of the end of the opening and closing head away from the opening and closing member; positioning arms corresponding to the position of the positioning groove are provided on the front and rear sides of the lower surface of the limiting part; the lower end of the positioning arm is inserted downward into the positioning groove and pressed against the lower groove wall of the positioning groove.
[0008] The opening and closing structure also includes a screw arranged at the center of the lower surface of the limiting part; the height of the upper surface of the left joint and the height of the upper surface of the water outlet joint are both lower than the height of the lower end surface of the valve stem seat; a guide plate is provided in the opening of the lower end of the movable hole; a guide hole is provided in the center of the guide plate and is connected to the movable hole, and the inner wall of the guide hole is a regular hexagon; a lifting column matching it is provided in the guide hole; a screw hole is provided in the center of the upper end surface of the lifting column, and the lower part of the screw is screwed in the screw hole; a pressure plate is provided at the lower end of the lifting column; a sealing column is provided on the lower surface of the pressure plate; an annular sealing groove is provided on the outer wall of the sealing column; a sealing ring matching it is provided in the sealing groove, and the sealing ring is made of rubber; the outer edge of the sealing ring protrudes outside the sealing groove; the outer edge of the sealing ring is located between the lower surface of the pressure plate and the inner wall of the lower side of the valve body; the lower surface of the sealing ring shields and seals the opening of the upper end of the water inlet.
[0009] The water hammer elimination structure includes a buffer cylinder arranged on the left side of the left joint; an auxiliary joint screwed into the left joint is provided at the right end of the buffer cylinder, the auxiliary joint is connected with the internal space of the buffer cylinder, and the inner diameter of the auxiliary joint is smaller than the inner diameter of the buffer cylinder; a buffer pad is provided in the left part of the buffer cylinder and fits the inner wall of the left side thereof, and the buffer pad is made of rubber; a buffer piston matching the buffer cylinder is provided in the right part of the buffer cylinder; a hemispherical sealing head is provided at the center of the right end face of the buffer piston, and the sealing head blocks and seals the left end port of the auxiliary joint.
[0010] The non-return structure includes a limiting step arranged on the inner wall of the left part of the water outlet joint, and the limiting step is annular; an annular limiting groove is arranged on the inner wall of the right end port of the water outlet joint; a retaining spring is arranged in the limiting groove, and the inner edge of the retaining spring protrudes inwardly to the outside of the limiting groove; a non-return seat that fits with the limiting step is arranged in the water outlet joint; a non-return hole is arranged in the center of the left side wall of the non-return seat; a mounting hole is arranged in the center of the right side wall of the non-return seat; the mounting hole is connected with the non-return hole through a moving hole; the diameter of the mounting hole is larger than the diameter of the moving hole, and the diameter of the moving hole is larger than the diameter of the non-return hole; a matching non-return hole is arranged in the mounting hole A matching limit sleeve; a guide sleeve coaxial with the limit sleeve is provided in the center of the limit sleeve; a plurality of support plates evenly distributed in a circle are provided between the outer wall of the guide sleeve and the inner wall of the limit sleeve; a limit plate is provided on the outer wall of the right end of the limit sleeve, which is located between the right side wall of the check seat and the left side wall of the outer edge of the retaining spring; a guide rod matching with it is provided in the guide sleeve; the left end of the guide rod passes to the left outside the guide sleeve and is provided with a check head; the check head blocks and seals the right end of the check hole; an annular groove is provided on the right side wall of the check head; a spring outside the guide rod is provided between the bottom of the groove and the left end face of the guide sleeve.
[0011] The outer wall of the check head is provided with a first annular auxiliary groove; a first O-ring matching therewith is arranged in the first auxiliary groove; the outer wall of the check seat is provided with a second annular auxiliary groove; a second O-ring matching therewith is arranged in the second auxiliary groove.
[0012] The outer wall of the buffer pad is provided with a plurality of third auxiliary grooves which are evenly distributed axially and are annular in shape; a third O-ring matching therewith is arranged in the third auxiliary groove; the outer wall of the buffer piston is provided with a plurality of fourth auxiliary grooves which are evenly distributed axially and are annular in shape; a fourth O-ring matching therewith is arranged in the fourth auxiliary groove.
[0013] The outer wall of the valve stem seat is provided with a positioning plate which fits with the upper end surface of the upper joint.
[0014] The outer wall of the portion of the valve stem located in the valve stem hole is provided with a plurality of fifth auxiliary grooves evenly distributed in the axial direction, and the fifth auxiliary groove is annular; a fifth O-ring matching with the fifth auxiliary groove is provided in the fifth auxiliary groove.
[0015] A flexible joint is threadedly connected inside the water inlet joint; the lower end of the flexible joint passes downward to the outside of the water inlet joint, and an annular lower rib is provided on the outer wall of the lower end of the flexible joint; a flexible nut is jacketed on the lower end of the flexible joint; an annular upper rib is provided on the inner wall of the upper end port of the flexible nut, and the lower surface of the upper rib is in contact with the upper surface of the lower rib; a rubber ring is provided on the lower end surface of the flexible joint to be in contact with it.
[0016] The beneficial effects of the utility model are:
[0017] Compared with the prior art, the opening and closing structures of the multifunctional angle valve with water hammer adopting the structure of the utility model are all assembled on the upper joint through the valve stem seat. When the opening and closing structure needs to be replaced, it is only necessary to remove the valve stem seat from the upper joint to complete the disassembly of the opening and closing structure, thereby effectively avoiding the situation where the replacement of the entire angle valve leads to excessive difficulty and high replacement cost. After replacing the opening and closing structure that opens and closes through the water supply hole, it is only necessary to rotate the valve stem ninety degrees to achieve the opening and closing of the angle valve, thereby achieving the effect of quick opening. After replacing the opening and closing structure that opens and closes through the water inlet hole, it is necessary to rotate the valve stem for multiple turns before the angle valve can be gradually opened to achieve the effect of slow opening. At the same time, the water flow can also be effectively checked by the check structure to avoid the situation where the water quality is polluted due to the backflow of water flow. When the water hammer phenomenon occurs during the water delivery process, the water pressure can be buffered by the water hammer elimination structure to effectively eliminate the water hammer phenomenon and avoid the internal components of the angle valve and the pipes connected to the angle valve from being damaged by severe water pressure impact. Finally, the angle valve has multiple effects at the same time and realizes multi-functions. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1It is a cross-sectional view of the first embodiment of the multifunctional angle valve with water hammer of the utility model;
[0019] Figure 2 It is a cross-sectional view of the water hammer elimination structure;
[0020] Figure 3 is a cross-sectional view of the check structure;
[0021] Figure 4 It is a structural schematic diagram of the valve stem seat of the first embodiment of the multifunctional angle valve with water hammer of the utility model;
[0022] Figure 5 It is a structural schematic diagram of the limiter;
[0023] Figure 6 It is a structural diagram of the opening and closing parts;
[0024] Figure 7 It is a structural schematic diagram of the valve stem of the first embodiment of the multifunctional angle valve with water hammer of the utility model;
[0025] Figure 8 is a schematic diagram of the structure of the elastic member;
[0026] Fig. 9 This is a structural schematic diagram of the utility model multifunctional angle valve with water hammer;
[0027] Fig.10 It is a cross-sectional view of the second embodiment of the multifunctional angle valve with water hammer of the utility model. DETAILED DESCRIPTION
[0028] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:
[0029] For example, see Figures 1 to 9The utility model provides a multifunctional angle valve with water hammer, comprising a valve body 1, a water inlet joint 2 arranged at the lower side of the valve body 1, and a water outlet joint 3 arranged at the right side of the valve body 1, the left side of the valve body 1 is provided with a left joint 4 which is connected with its internal space; the left joint 4 is connected with a water hammer elimination structure which matches it; the inner wall of the lower side of the valve body 1 is provided with a water inlet hole 5 which is connected with the water inlet joint 2; the water inlet hole 5 is coaxial with the water inlet joint 2, and the diameter of the water inlet hole 5 is smaller than the inner diameter of the water inlet joint 2; the upper side of the valve body 1 is provided with an upper joint 6 which is connected with its internal space, and the upper joint 6 is coaxial with the water inlet joint 2; a valve stem seat 7 is screwed in the upper joint 6; an opening and closing structure which matches the water inlet hole 5 is provided in the valve stem seat 7; the opening and closing structure includes a valve body 1 and a valve body 1; A valve stem hole 8 is provided at the center of the upper end face of the valve stem seat 7, and a valve stem 9 matching therewith is provided in the valve stem hole 8; the upper end of the valve stem 9 extends upward to the outside of the valve stem seat 7 and is provided with a hand wheel 10; a movable hole 11 is provided at the center of the lower surface of the valve stem seat 7 and is connected to the valve stem hole 8, and the diameter of the movable hole 11 is larger than the diameter of the valve stem hole 8; a limiting portion 12 is provided at the lower end of the valve stem 9 and is fitted with the bottom of the movable hole 11; an annular groove 13 is provided on the outer wall of the valve stem 9 and is located above the valve stem hole 8; an elastic member 14 matching therewith is provided in the annular groove 13, and an elastic opening 15 is provided on one side of the elastic member 14; the outer edge of the elastic member 14 protrudes out of the annular groove 13 and is fitted with the upper surface of the valve stem seat 7; a check structure matching therewith is provided in the water outlet joint 3.
[0030] The opening and closing structure also includes water outlet holes 16 arranged on the left and right sides of the outer wall of the valve stem seat 7; the movable hole 11 is connected with the left joint 4 through the left water outlet hole 16; the movable hole 11 is connected with the water outlet joint 3 through the right water outlet hole 16; the lower end of the valve stem seat 7 is adjacent to the lower inner wall of the valve body 1; a sealing gasket 18 coaxial with it is arranged in the movable hole 11, and the sealing gasket 18 is annular, and the lower end of the sealing gasket 18 passes downward to the outside of the movable hole 11 and fits with the lower inner wall of the valve body 1, and the lower end port of the sealing gasket 18 encloses the upper end opening of the water inlet hole 5; a limiting member 19 is arranged in the movable hole 11 and fits with the upper end surface of the sealing gasket 18; the limiting member 19 is provided with symmetrical left and right sides. a water supply hole 20; a positioning notch 21 which is connected to the lower part of the water outlet hole 16 is provided on the left and right sides of the inner wall of the movable hole 11; a positioning block 22 which matches the positioning notch 21 is provided on the left and right sides of the outer wall of the limiting member 19; a starting and closing member 23 which matches it is provided at the center of the upper surface of the limiting member 19; symmetrical starting and closing heads 24 are provided at the front and rear ends of the starting and closing member 23, and the starting and closing heads 24 are fan-shaped; a positioning groove 25 is provided on the upper surface of the end of the starting and closing head 24 away from the starting and closing member 23; positioning arms 26 corresponding to the position of the positioning groove 25 are provided on the front and rear sides of the lower surface of the limiting portion 12; the lower end of the positioning arm 26 is inserted downward into the positioning groove 25 and pressed against the lower groove wall of the positioning groove 25.
[0031] The water hammer elimination structure includes a buffer cylinder 27 arranged on the left side of the left joint 4; the right end of the buffer cylinder 27 is provided with an auxiliary joint 28 screwed into the left joint 4, the auxiliary joint 28 is connected with the internal space of the buffer cylinder 27, and the inner diameter of the auxiliary joint 28 is smaller than the inner diameter of the buffer cylinder 27; the left part of the buffer cylinder 27 is provided with a buffer pad 29 that fits with the left inner wall thereof, and the buffer pad 29 is made of rubber; the right part of the buffer cylinder 27 is provided with a buffer piston 30 that matches it; the center of the right end face of the buffer piston 30 is provided with a hemispherical sealing head 31, and the sealing head 31 blocks and seals the left end port of the auxiliary joint 28.
[0032] The non-return structure includes a limiting step 32 arranged on the inner wall of the left part of the water outlet joint 3, and the limiting step 32 is annular; the inner wall of the right end port of the water outlet joint 3 is provided with an annular limiting groove 33; a retaining spring 34 is provided in the limiting groove 33, and the inner edge of the retaining spring 34 protrudes inwardly to the outside of the limiting groove 33; a non-return seat 35 that fits with the limiting step 32 is provided in the water outlet joint 3; a non-return hole 36 is provided in the center of the left side wall of the non-return seat 35; a mounting hole 37 is provided in the center of the right side wall of the non-return seat 35; the mounting hole 37 is connected with the non-return hole 36 through a moving hole 38; the diameter of the mounting hole 37 is larger than the diameter of the moving hole 38, and the diameter of the moving hole 38 is larger than the diameter of the non-return hole 36; the mounting hole 37 is provided with a matching A limit sleeve 39; a guide sleeve 40 coaxial with the limit sleeve 39 is provided at the center of the limit sleeve 39; a plurality of support plates 41 evenly distributed in a circle are provided between the outer wall of the guide sleeve 40 and the inner wall of the limit sleeve 39; a limit plate 42 located between the right side wall of the check seat 35 and the left side wall of the outer edge of the retaining spring 34 is provided on the outer wall at the right end of the limit sleeve 39; a guide rod 43 matching with the guide sleeve 40 is provided inside the guide sleeve 40; the left end of the guide rod 43 passes to the left outside the guide sleeve 40 and is provided with a check head 44; the check head 44 blocks and seals the right end opening of the check hole 36; an annular groove 45 is provided on the right side wall of the check head 44; a spring 46 set outside the guide rod 43 is provided between the bottom of the groove 45 and the left end surface of the guide sleeve 40.
[0033] Both the water inlet joint 2 and the water outlet joint 3 can be used to connect pipes. When the water in the pipe connected to the water inlet joint 2 flows upward into the water inlet joint 2, the water will flow to the water inlet hole 5, and then flow into the water supply hole 20 through the inner hole of the sealing gasket 18 in turn. Since the opening and closing head 24 is located on the front and rear sides of the upper surface of the limiter 19 at this time, the opening and closing head 24 does not cover and seal the upper end opening of the water supply hole 20. The water supply hole 20 is in an open state, and the water immediately flows into the space above the limiter 19. Under the push of the subsequent water flow, the water flows to the right through the water outlet hole 16 on the right to the check hole 36. At this time, the pressure of the water flow is greater than the elasticity of the spring 46, and the water flow will push the check head 44 to the right, so that the check head 44 no longer blocks and seals the right end opening of the check hole 36. Subsequently, the water flows through the outer wall of the opening and closing head 24 and the inner wall of the movable hole 38 The water flows into the mounting hole 37 through the gap between the walls, and finally flows out from the right end port of the water outlet joint 3 through the gap between the adjacent support plates 41, and flows into the pipe connected to the water outlet joint 3 for use. If the angle valve is to be closed, the valve stem 9 can be rotated by the hand wheel 10. When the valve stem 9 rotates, the limit portion 12 arranged at the lower end of the valve stem 9 rotates synchronously with the positioning arm 26, and the lower end of the positioning arm 26 is stuck in the positioning groove 25. When the positioning arm 26 rotates, the opening and closing heads 24 on the front and rear sides rotate accordingly. After the opening and closing heads 24 rotate ninety degrees, the opening and closing heads 24 are just above the water supply hole 20, and the lower surface of the opening and closing heads 24 covers and seals the upper end opening of the water supply hole 20. At this time, the water supply hole 20 is in a closed state, and the water flow is trapped in the water supply hole 20 and cannot continue to flow to the water outlet joint 3, thereby realizing the closing of the angle valve.
[0034] As the water flows through the water supply hole 20 to the space above the limiter 19, a part of the water will flow into the auxiliary joint 28 through the water outlet hole 16 on the left. At this time, the air pressure between the buffer piston 30 and the buffer pad 29 and the water pressure are in a balanced state. If water hammer occurs during the water delivery process, the sudden increase in water pressure will push the buffer piston 30 to the left. At this time, the gas in the space between the buffer piston 30 and the buffer pad 29 is continuously compressed, and the air pressure continues to rise to form a high pressure. This high pressure can counteract the sudden increase in water pressure through the buffer piston 30, thereby playing the role of buffering the water pressure. As the air pressure between the buffer piston 30 and the buffer pad 29 is compressed to a certain extent, this air pressure will squeeze the buffer pad 29 to the left, and the buffer pad 29 will deform and generate elasticity. This elasticity can assist the high pressure between the buffer piston 30 and the buffer pad 29 to counteract the sudden increase in water pressure, further improve the effect of buffering water pressure, and effectively eliminate the water hammer phenomenon.
[0035] If the water flows back due to the change of water pressure during the water delivery process, the backflowing water will first impact the right side wall of the check head 44 to the left. The impact force to the left cooperates with the elasticity of the spring 46, and the opening and closing head 24 will quickly move to the left and reset, and block and seal the right end of the check hole 36 again, so that the water flow is effectively trapped in the movable hole 38, so that the water flow cannot continue to flow back to the left, thereby achieving a check effect.
[0036] A first annular auxiliary groove 47 is provided on the outer wall of the check head 44, and a first O-ring 48 matching therewith is provided in the first auxiliary groove 47; a second annular auxiliary groove 49 is provided on the outer wall of the check seat 35, and a second O-ring 50 matching therewith is provided in the second auxiliary groove 49; the presence of the first O-ring 48 can effectively improve the sealing performance when the check head 44 blocks and seals the right end opening of the check hole 36; the presence of the second O-ring 50 can improve the sealing performance between the outer wall of the check seat 35 and the inner wall of the water outlet joint 3 to avoid water leakage.
[0037] The outer wall of the buffer pad 29 is provided with a plurality of third auxiliary grooves 51 which are evenly distributed axially. The third auxiliary grooves 51 are annular in shape, and a third O-ring 52 which matches the third auxiliary grooves 51 is provided therein. The outer wall of the buffer piston 30 is provided with a plurality of fourth auxiliary grooves 53 which are evenly distributed axially. The fourth auxiliary grooves 53 are annular in shape, and a fourth O-ring 54 which matches the fourth auxiliary grooves 53 is provided therein. The presence of the third O-ring 52 can not only effectively ensure the sealing between the outer wall of the buffer pad 29 and the inner wall of the buffer cylinder 27, but also improve the friction between the outer wall of the buffer pad 29 and the inner wall of the buffer cylinder 27, thereby ensuring the stability of the buffer pad 29. The presence of the fourth O-ring 54 can ensure the sealing between the outer wall of the buffer piston 30 and the inner wall of the buffer cylinder 27, thereby avoiding air leakage and ensuring the stability of the buffer piston 30 when compressing the gas between itself and the buffer pad 29.
[0038] The outer wall of the portion of the valve stem 9 located in the valve stem hole 8 is provided with a plurality of fifth auxiliary grooves 55 which are evenly distributed axially. The fifth auxiliary groove 55 is annular and a fifth O-ring 56 which matches the fifth auxiliary groove 55 is provided in the fifth auxiliary groove 55. The presence of the fifth O-ring 56 can effectively improve the sealing between the outer wall of the valve stem 9 and the inner wall of the valve stem hole 8 to avoid water leakage.
[0039] A union joint 57 is threadedly connected to the water inlet joint 2, and the lower end of the union joint 57 passes downward to the outside of the water inlet joint 2. The outer wall of the lower end of the union joint 57 is provided with an annular lower rib 58, and a union nut 59 is arranged on the lower end of the union joint 57. The inner wall of the upper end port of the union nut 59 is provided with an annular upper rib 60, and the lower surface of the upper rib 60 fits with the upper surface of the lower rib 58. The union nut 59 can replace the water inlet joint 2 and be threadedly connected to the end of the pipeline. This connection method can be completed by rotating the union nut, effectively avoiding the situation where the thread connection can only be completed by rotating the valve body 1 or rotating the pipeline, effectively reducing the difficulty of connection, and facilitating the connection of the pipeline. The lower end surface of the union joint 57 is provided with a rubber ring 61 that fits therewith. When the union nut 59 is threadedly connected to the outside of the pipeline end, the rubber ring 61 is located between the pipeline end and the end of the union joint 57, thereby achieving a sealing effect.
[0040] For example 2, please refer to Fig.10 The opening and closing structure also includes a screw 62 arranged at the center of the lower surface of the limiting part 12; the height of the upper surface of the left joint 4 and the height of the upper surface of the water outlet joint 3 are both lower than the height of the lower end surface of the valve stem seat 7; a guide plate 63 is arranged in the lower end opening of the movable hole 11; a guide hole 64 is arranged in the center of the guide plate 63 and is connected to the movable hole 11, and the inner wall of the guide hole 64 is a regular hexagon; a lifting column 65 matching with it is arranged in the guide hole 64; a screw hole 66 is arranged in the center of the upper end surface of the lifting column 65, and the screw 62 The lower part is screwed into the screw hole 66; a pressing plate 67 is provided at the lower end of the lifting column 65; a sealing column 68 is provided on the lower surface of the pressing plate 67; an annular sealing groove 69 is provided on the outer wall of the sealing column 68; a sealing ring 70 matching with it is provided in the sealing groove 69, and the sealing ring 70 is made of rubber; the outer edge of the sealing ring 70 protrudes out of the sealing groove 69; the outer edge of the sealing ring 70 is located between the lower surface of the pressing plate 67 and the lower inner wall of the valve body 1; the lower surface of the sealing ring 70 shields and seals the upper end opening of the water inlet hole 5.
[0041] When it is necessary to slowly open the angle valve, the valve stem 9 can be rotated by the hand wheel 10 to realize the rotation of the screw 62, and the screw 62 is screwed into the screw hole 66 on the upper end face of the lifting column 65. The outer wall of the lifting column 65 itself is restricted by the inner wall of the guide hole 64 which is a regular hexagon, so that the lifting column 65 can only move up and down along the guide hole 64 and cannot rotate in the guide hole 64. Therefore, when the screw 62 rotates, the lifting column 65 will convert the rotating force into its own up and down movement force to realize the up and down movement of the lifting column 65. When the lifting column 65 moves up, the sealing ring 70 moves up accordingly. At this time, the lower surface of the sealing ring 70 no longer covers and seals the upper end opening of the water inlet hole 5. The upper end opening of the water inlet hole 5 gradually opens, and the water flow will flow into the check hole 36 through the water inlet hole 5, and finally flow out from the right end port of the water outlet joint 3 for use.
[0042] The outer wall of the valve stem seat 7 is provided with a positioning plate 71 which fits with the upper end surface of the upper joint 6. The existence of the positioning plate 71 can ensure that the valve stem seat 7 can be screwed into place, avoiding the situation where the valve stem seat 7 moves downward excessively when being screwed into the upper joint 6 and affects the effects of other components.
[0043] From the above, it can be seen that the opening and closing structures of the utility model are all assembled on the upper joint 6 through the valve stem seat 7. When the opening and closing structure needs to be replaced, it is only necessary to remove the valve stem seat 7 from the upper joint 6 to complete the disassembly of the opening and closing structure, thereby effectively avoiding the situation where the replacement of the entire angle valve causes excessive difficulty in replacement and high replacement cost. After replacing the opening and closing structure that opens and closes through the water supply hole 20, it is only necessary to rotate the valve stem 9 ninety degrees to achieve the opening and closing of the angle valve, thereby achieving the effect of quick opening. After replacing the opening and closing structure that opens and closes through the water inlet hole 5, it is necessary to rotate the valve stem 9 for multiple circles before the angle valve can be gradually opened to achieve the effect of slow opening. At the same time, the water flow can also be effectively checked by the check structure to avoid the situation where the water quality is polluted due to the backflow of water flow. When the water hammer phenomenon occurs during the water delivery process, the water pressure can be buffered by the water hammer elimination structure to effectively eliminate the water hammer phenomenon and avoid the internal components of the angle valve and the pipes connected to the angle valve from being damaged by severe water pressure impact. Finally, the angle valve has multiple effects at the same time and realizes multi-function.
Claims
1. A multifunctional angle valve with water hammer, comprising a valve body, a water inlet joint arranged at the lower side of the valve body and a water outlet joint arranged at the right side of the valve body, characterized in that: The left side of the valve body is provided with a left joint which is connected with its internal space; the left joint is connected with a water hammer elimination structure which matches it; the inner wall of the lower side of the valve body is provided with a water inlet hole which is connected with the water inlet joint; the water inlet hole is coaxial with the water inlet joint, and the diameter of the water inlet hole is smaller than the inner diameter of the water inlet joint; the upper side of the valve body is provided with an upper joint which is connected with its internal space, and the upper joint is coaxial with the water inlet joint; a valve stem seat is screwed in the upper joint; an opening and closing structure which matches the water inlet hole is provided in the valve stem seat; the opening and closing structure includes a valve stem hole which is provided at the center of the upper end face of the valve stem seat, and a valve stem hole in the valve stem hole A valve stem matching it is provided; the upper end of the valve stem passes upward to the outside of the valve stem seat and is provided with a handwheel; a movable hole that penetrates the valve stem hole is provided at the center of the lower surface of the valve stem seat, and the diameter of the movable hole is larger than the diameter of the valve stem hole; a limiting portion that fits with the bottom of the movable hole is provided at the lower end of the valve stem; an annular groove located above the valve stem hole is provided on the outer wall of the valve stem; an elastic member matching it is provided in the annular groove, and one side of the elastic member has an elastic opening; the outer edge of the elastic member protrudes out of the annular groove and fits with the upper surface of the valve stem seat; a check structure matching it is provided in the water outlet joint.
2. A multifunctional angle valve with water hammer according to claim 1, characterized in that: The opening and closing structure also includes water outlet holes arranged on the left and right sides of the outer wall of the valve stem seat; the movable hole is connected with the left joint through the left water outlet hole; the movable hole is connected with the water outlet joint through the right water outlet hole; the lower end of the valve stem seat is adjacent to the lower inner wall of the valve body; a sealing gasket coaxial with it is arranged in the movable hole, the sealing gasket is annular, the lower end of the sealing gasket passes downward to the outside of the movable hole and fits with the lower inner wall of the valve body, and the lower end port of the sealing gasket encloses the upper end opening of the water inlet hole; a limiting member is arranged in the movable hole and fits with the upper end surface of the sealing gasket; the left and right sides of the limiting member are provided with symmetrical water supply holes; The left and right sides of the inner wall of the movable hole are provided with a locking notch that penetrates the lower part of the water outlet hole; the left and right sides of the outer wall of the limiting member are provided with a locking block that matches the locking notch; the center of the upper surface of the limiting member is provided with an opening and closing member that matches it; the front and rear ends of the opening and closing member are provided with symmetrical opening and closing heads, and the opening and closing heads are fan-shaped; a positioning groove is provided on the upper surface of the end of the opening and closing head away from the opening and closing member; positioning arms corresponding to the position of the positioning groove are provided on the front and rear sides of the lower surface of the limiting part; the lower end of the positioning arm is inserted downward into the positioning groove and pressed against the groove wall on the lower side of the positioning groove.
3. The multifunctional angle valve with water hammer according to claim 1, characterized in that: The opening and closing structure also includes a screw arranged at the center of the lower surface of the limiting part; the height of the upper surface of the left joint and the height of the upper surface of the water outlet joint are both lower than the height of the lower end surface of the valve stem seat; a guide plate is provided in the opening of the lower end of the movable hole; a guide hole is provided in the center of the guide plate and is connected to the movable hole, and the inner wall of the guide hole is a regular hexagon; a lifting column matching it is provided in the guide hole; a screw hole is provided in the center of the upper end surface of the lifting column, and the lower part of the screw is screwed in the screw hole; a pressure plate is provided at the lower end of the lifting column; a sealing column is provided on the lower surface of the pressure plate; an annular sealing groove is provided on the outer wall of the sealing column; a sealing ring matching it is provided in the sealing groove, and the sealing ring is made of rubber; the outer edge of the sealing ring protrudes outside the sealing groove; the outer edge of the sealing ring is located between the lower surface of the pressure plate and the inner wall of the lower side of the valve body; the lower surface of the sealing ring shields and seals the opening of the upper end of the water inlet.
4. The multifunctional angle valve with water hammer according to claim 1, characterized in that: The water hammer elimination structure includes a buffer cylinder arranged on the left side of the left joint; an auxiliary joint screwed into the left joint is provided at the right end of the buffer cylinder, the auxiliary joint is connected with the internal space of the buffer cylinder, and the inner diameter of the auxiliary joint is smaller than the inner diameter of the buffer cylinder; a buffer pad is provided in the left part of the buffer cylinder and fits the inner wall of the left side thereof, and the buffer pad is made of rubber; a buffer piston matching the buffer cylinder is provided in the right part of the buffer cylinder; a hemispherical sealing head is provided at the center of the right end face of the buffer piston, and the sealing head blocks and seals the left end port of the auxiliary joint.
5. The multifunctional angle valve with water hammer according to claim 1, characterized in that: The non-return structure includes a limiting step arranged on the inner wall of the left part of the water outlet joint, and the limiting step is annular; an annular limiting groove is arranged on the inner wall of the right end port of the water outlet joint; a retaining spring is arranged in the limiting groove, and the inner edge of the retaining spring protrudes inwardly to the outside of the limiting groove; a non-return seat that fits with the limiting step is arranged in the water outlet joint; a non-return hole is arranged in the center of the left side wall of the non-return seat; a mounting hole is arranged in the center of the right side wall of the non-return seat; the mounting hole is connected with the non-return hole through a moving hole; the diameter of the mounting hole is larger than the diameter of the moving hole, and the diameter of the moving hole is larger than the diameter of the non-return hole; a matching non-return hole is arranged in the mounting hole A matching limit sleeve; a guide sleeve coaxial with the limit sleeve is provided in the center of the limit sleeve; a plurality of support plates evenly distributed in a circle are provided between the outer wall of the guide sleeve and the inner wall of the limit sleeve; a limit plate is provided on the outer wall of the right end of the limit sleeve, which is located between the right side wall of the check seat and the left side wall of the outer edge of the retaining spring; a guide rod matching with it is provided in the guide sleeve; the left end of the guide rod passes to the left outside the guide sleeve and is provided with a check head; the check head blocks and seals the right end of the check hole; an annular groove is provided on the right side wall of the check head; a spring outside the guide rod is provided between the bottom of the groove and the left end face of the guide sleeve.
6. The multifunctional angle valve with water hammer according to claim 5, characterized in that: The outer wall of the check head is provided with a first annular auxiliary groove; a first O-ring matching therewith is arranged in the first auxiliary groove; the outer wall of the check seat is provided with a second annular auxiliary groove; a second O-ring matching therewith is arranged in the second auxiliary groove.
7. The multifunctional angle valve with water hammer according to claim 4, characterized in that: The outer wall of the buffer pad is provided with a plurality of third auxiliary grooves which are evenly distributed axially and are annular in shape; a third O-ring matching therewith is arranged in the third auxiliary groove; the outer wall of the buffer piston is provided with a plurality of fourth auxiliary grooves which are evenly distributed axially and are annular in shape; a fourth O-ring matching therewith is arranged in the fourth auxiliary groove.
8. The multifunctional angle valve with water hammer according to claim 1, characterized in that: The outer wall of the valve stem seat is provided with a positioning plate which fits with the upper end surface of the upper joint.
9. The multifunctional angle valve with water hammer according to claim 1, characterized in that: The outer wall of the portion of the valve stem located in the valve stem hole is provided with a plurality of fifth auxiliary grooves evenly distributed in the axial direction, and the fifth auxiliary groove is annular; a fifth O-ring matching with the fifth auxiliary groove is provided in the fifth auxiliary groove.
10. The multifunctional angle valve with water hammer according to claim 1, characterized in that: A flexible joint is threadedly connected inside the water inlet joint; the lower end of the flexible joint passes downward to the outside of the water inlet joint, and an annular lower rib is provided on the outer wall of the lower end of the flexible joint; a flexible nut is jacketed on the lower end of the flexible joint; an annular upper rib is provided on the inner wall of the upper end port of the flexible nut, and the lower surface of the upper rib is in contact with the upper surface of the lower rib; a rubber ring is provided on the lower end surface of the flexible joint to be in contact with it.