CN216200726U

CN216200726U - Angle valve easy to replace and seal

Info

Publication number: CN216200726U
Application number: CN202122496229.7U
Authority: CN
Inventors: 罗永喜
Original assignee: Taizhou Yongtong Brass Industry Co ltd
Current assignee: Taizhou Yongtong Brass Industry Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-04-05
Anticipated expiration: 2031-10-15

Abstract

An angle valve easy to replace and seal comprises a valve body, a water inlet joint arranged at the lower end of the valve body and a water outlet joint arranged at the right side of the valve body, wherein a valve core matched with the valve body is arranged in the valve body; a water through hole communicated with the water inlet joint is formed in the center of the lower surface of the valve core; the outer wall of the valve core is provided with a plurality of opening and closing holes which are uniformly distributed in the circumferential direction, the positions of the opening and closing holes correspond to the positions of the water outlet connectors, and the opening and closing holes are communicated with the limber holes; arc-shaped grooves which are symmetrical to each other are arranged on two sides of the valve core. The angle valve with the easily replaced seal can not only quickly install the seal on the valve core, but also simplify the disassembly process of the valve core, improve the replacement efficiency of the seal on the valve core and realize the effect of easily replacing the seal.

Description

Angle valve easy to replace and seal

Technical Field

The utility model relates to an angle valve, in particular to an angle valve with easily replaced seal.

Background

The angle valve is an angle stop valve, the valve core can be controlled to rotate by rotating the valve rod, so that the angle valve is opened and closed, when an opening and closing hole on the valve core is opposite to a water outlet joint of the angle valve, the angle valve is in an opening state, when the opening and closing hole on the valve core is shielded and sealed by the inner wall of a valve body of the angle valve, the angle valve is in a closing state, in order to avoid the condition of water leakage, a rubber sleeve is sleeved on the valve core to ensure the sealing property between the valve core and the valve body, but in the process of sleeving the rubber sleeve on the valve core, the rubber sleeve needs to be propped open through external force, so that the rubber sleeve can be difficultly sleeved outside the valve core, and the installation and sealing mode is not only troublesome, but also the rubber sleeve is easy to be pulled excessively to cause elastic damage in the propping process to influence the elastic property of the rubber sleeve, so that the sealing property of the rubber sleeve is influenced, and meanwhile, if the rubber sleeve on the valve core needs to be replaced after the angle valve is used for a period of time, the valve core is required to be disassembled from the inside of the angle valve, the traditional angle valve is limited in structure, the disassembling process is very troublesome, the disassembling efficiency is extremely low, and the replacing efficiency of the seal on the valve core is seriously affected.

Disclosure of Invention

The utility model aims to solve the technical problem of the prior art and provides an angle valve with easily replaced seal, which not only can quickly install the seal on a valve core, but also can simplify the disassembly process of the valve core, improve the replacement efficiency of the seal on the valve core and realize the effect of easily replacing the seal.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the utility model discloses an angle valve easy to replace and seal, which comprises a valve body, a water inlet joint arranged at the lower end of the valve body and a water outlet joint arranged at the right side of the valve body, wherein a valve core matched with the valve body is arranged in the valve body, a valve rod is arranged at the center of the upper end of the valve core, and the upper end of the valve rod upwards penetrates out of the valve body and is provided with a handle, and the angle valve is characterized in that: an annular limiting step is formed between the valve body and the water inlet joint, and the lower end face of the valve core is attached to the limiting step; a water through hole communicated with the water inlet joint is formed in the center of the lower surface of the valve core; the outer wall of the valve core is provided with a plurality of opening and closing holes which are uniformly distributed in the circumferential direction, the positions of the opening and closing holes correspond to the positions of the water outlet connectors, and the opening and closing holes are communicated with the limber holes; arc-shaped grooves which are symmetrical to each other are arranged on two sides of the valve core; a rubber pad matched with the arc-shaped groove is arranged in the arc-shaped groove, and the opening and closing hole is surrounded by the rubber pad; the upper side and the lower side of the bottom of the arc-shaped groove are provided with arc-shaped clamping grooves; the upper end and the lower end of the rubber pad extend towards the axis direction of the valve core to form arc-shaped clamping parts matched with the arc-shaped clamping grooves; the valve rod is connected with the handle through an easy-to-dismount structure.

And a plurality of evenly distributed anti-skid protrusions are arranged at the bottom of the arc-shaped groove.

The number of the opening and closing holes is 3, and the opening and closing holes are respectively positioned on the side wall of the front side of the valve core and the side walls of the left side and the right side of the valve core; the arc-shaped grooves are respectively arranged on the side walls of the front side and the rear side of the valve core; the middle part of the front side of the rubber pad in the arc-shaped groove at the front side is provided with a through hole communicated with the opening and closing hole on the side wall at the front side of the valve core, and the middle parts of the left and right ends of the rubber pad in the arc-shaped groove at the front side are provided with front semicircular holes which are mutually symmetrical; the middle parts of the left end and the right end of the rubber pad in the arc-shaped groove at the rear side are provided with rear half round holes opposite to the front half round holes, and the front half round holes and the rear half round holes enclose the opening and closing holes on the side walls at the left side and the right side of the valve core.

The side wall of the front side of the rubber pad in the arc-shaped groove at the front side is provided with a plurality of front annular bulges which are radially distributed outwards by taking the through hole as the center; and a limiting ring matched with the opening and closing hole positioned on the front side extends backwards from the hole at the rear end of the through hole.

An embedding hole is arranged in the middle of the bottom of the arc-shaped groove at the rear side; the side wall of the front side of the rubber pad positioned in the arc-shaped groove at the rear side is provided with an embedded block matched with the embedded hole; the side wall of the rear side of the rubber pad in the arc-shaped groove at the rear side is provided with a plurality of rear annular bulges which are radially distributed outwards by taking the middle part of the rubber pad as a center, and the inner diameter of the rear annular bulge at the innermost side is larger than the diameter of a left end port which is communicated with the inner space of the valve body by the water outlet joint.

The easy-to-assemble and disassemble structure comprises a limit groove arranged on the inner wall of the upper part of the valve body, the limit groove is annular, and the limit groove is positioned above the valve core; a snap spring matched with the limiting groove is arranged in the limiting groove and is attached to the upper end face of the valve core; the lower surface of the left end of the handle is provided with a rotating hole, and the upper end of the valve body is positioned in the rotating hole; the upper surface of the left end of the handle is provided with a limiting hole which is coaxial with the rotating hole; the center of the bottom of the limiting hole is provided with a connecting hole; the bottom of the rotary hole is provided with a square hole communicated with the connecting hole; the upper end of the valve rod penetrates upwards into the rotary hole and is provided with a positioning head matched with the square hole; the center of the upper end face of the positioning head is provided with a connector positioned in the connecting hole, and the outer edge of the upper end face of the connector is provided with a plurality of elastic arms which are uniformly distributed in the circumferential direction; the upper end of the elastic arm is provided with a limiting head which is attached to the bottom of the limiting hole.

The upper end of the side wall of the outer side of the limiting head inclines towards the axis direction of the limiting hole.

The upper end of the valve core is provided with an annular sealing groove which is positioned above the arc-shaped groove; and an O-shaped ring matched with the sealing groove is arranged in the sealing groove.

A limiting block is arranged on the left side of the bottom of the rotary hole; and the front side and the rear side of the upper end surface of the valve body are provided with stop blocks positioned in the rotating holes, and the height of each stop block corresponds to the height of each limit block.

The clamp spring is provided with a limiting groove and a clamping spring fixing hole.

The utility model has the beneficial effects that:

compared with the prior art, the sealing method can ensure the sealing performance between the outer wall of the valve core and the inner wall of the valve body, only the rubber pads are embedded into the arc-shaped groove when the rubber pads are installed, the rubber pads are not required to be opened or pulled, the situation that the rubber pads are deformed by overlarge external force in the installation process to cause elastic damage is effectively avoided, the elastic performance of the rubber pads is effectively ensured, the situation that the sealing performance between the outer wall of the valve core and the inner wall of the valve body is influenced by the elastic weakening or failure of the rubber pads is avoided, the water leakage can be effectively avoided under the condition that the sealing performance of the rubber pads is ensured, when the rubber pads are required to be replaced, only the rubber pads are required to be directly pulled out from the arc-shaped groove, therefore, the rubber pad is very simple in dismounting and mounting process, and the effect of easy replacement and sealing can be effectively achieved.

Compared with the prior art, the angle valve which is easy to replace and seal and adopts the structure can quickly complete the separation of the handle and the valve rod only by extruding the limiting head, then the clamp spring is disassembled, and the valve core can be directly pulled upwards through the valve rod, so that the valve core is taken out from the interior of the valve body.

Drawings

FIG. 1 is a cross-sectional view of an easy-to-replace seal angle valve of the present invention;

FIG. 2 is a schematic view of the construction of the easy change seal angle valve of the present invention;

FIG. 3 is a schematic structural view of the easy-to-replace sealing angle valve of the present invention when the valve core is assembled with a rubber gasket;

fig. 4 is a perspective view of the handle.

Detailed Description

The utility model is described in further detail below with reference to the following figures and detailed description:

referring to fig. 1 to 4, the utility model provides an angle valve easy to replace and seal, which comprises a valve body 1, a water inlet connector 2 arranged at the lower end of the valve body 1 and a water outlet connector 3 arranged at the right side of the valve body 1, wherein a valve core 4 matched with the valve body 1 is arranged in the valve body 1, a valve rod 5 is arranged at the center of the upper end of the valve core 4, the upper end of the valve rod 5 upwards penetrates through the valve body 1 and is provided with a handle 6, an annular limiting step 7 is formed between the valve body 1 and the water inlet connector 2, and the lower end face of the valve core 4 is attached to the limiting step 7; the center of the lower surface of the valve core 4 is provided with a water through hole 8 communicated with the water inlet joint 2; a plurality of opening and closing holes 9 which are uniformly distributed in the circumferential direction are formed in the outer wall of the valve core 4, the positions of the opening and closing holes 9 correspond to the positions of the water outlet connectors 3, and the opening and closing holes 9 are communicated with the water through holes 8; arc-shaped grooves 10 which are symmetrical to each other are arranged on two sides of the valve core 4; a rubber pad 11 matched with the arc-shaped groove 10 is arranged in the arc-shaped groove 10, and the opening and closing hole 9 is enclosed by the rubber pad 11; the upper side and the lower side of the groove bottom of the arc-shaped groove 10 are provided with arc-shaped clamping grooves 12; the upper end and the lower end of the rubber gasket 11 extend towards the axis direction of the valve core 4 to form an arc-shaped clamping part 13 matched with the arc-shaped clamping groove 12; the valve rod 5 is connected with the handle 6 through an easy-to-dismount structure.

A plurality of evenly distributed anti-skid protrusions 14 are arranged at the bottom of the arc-shaped groove 10.

The number of the opening and closing holes 9 is 3, and the opening and closing holes are respectively positioned on the side wall at the front side and the side walls at the left side and the right side of the valve core 4; the arc-shaped grooves 10 are respectively arranged on the side walls of the front side and the rear side of the valve core 4; the middle part of the front side of the rubber pad 11 in the arc-shaped groove 10 at the front side is provided with a through hole 15 communicated with the opening and closing hole 9 on the side wall of the front side of the valve core 4, and the middle parts of the left and right ends of the rubber pad 11 in the arc-shaped groove 10 at the front side are provided with front semicircular holes 16 which are mutually symmetrical; the middle parts of the left and right ends of the rubber pad 11 in the arc-shaped groove 10 at the rear side are provided with rear half round holes 17 opposite to the positions of the front half round holes 16, and the front half round holes 16 and the rear half round holes 17 enclose the opening and closing holes 9 on the side walls at the left and right sides of the valve core 4.

The side wall of the front side of the rubber pad 11 in the arc-shaped groove 10 at the front side is provided with a plurality of front annular bulges 18 which are radially distributed outwards by taking the through hole 15 as the center; a limiting ring 37 matched with the opening and closing hole 9 on the front side extends backwards from the rear end orifice of the through hole 15.

The middle part of the bottom of the arc groove 10 at the rear side is provided with an embedding hole 19; the side wall of the front side of the rubber pad 11 positioned in the arc-shaped groove 10 at the rear side is provided with an embedded block 20 matched with the embedded hole 19; the side wall of the rear side of the rubber pad 11 in the arc-shaped groove 10 at the rear side is provided with a plurality of rear annular bulges 21 which are radially distributed outwards by taking the middle part of the rubber pad 11 as the center, and the inner diameter of the rear annular bulge 21 at the innermost side is larger than the diameter of a left end port which is communicated with the inner space of the valve body 1 through the water outlet joint 3.

The easy-to-assemble and disassemble structure comprises a limiting groove 22 arranged on the inner wall of the upper part of the valve body 1, the limiting groove 22 is annular, and the limiting groove 22 is positioned above the valve core 4; a snap spring 23 matched with the limiting groove 22 is arranged in the limiting groove 22, and the snap spring 23 is attached to the upper end face of the valve core 4; the lower surface of the left end of the handle 6 is provided with a rotating hole 24, and the upper end of the valve body 1 is positioned in the rotating hole 24; the upper surface of the left end of the handle 6 is provided with a limiting hole 25 which is coaxial with the rotating hole 24; a connecting hole 26 is formed in the center of the bottom of the limiting hole 25; the bottom of the rotating hole 24 is provided with a square hole 27 communicated with the connecting hole 26; the upper end of the valve rod 5 upwards penetrates into the rotary hole 24 and is provided with a positioning head 28 matched with the square hole 27; the center of the upper end face of the positioning head 28 is provided with a connecting head 36 positioned in the connecting hole 26, and the outer edge of the upper end face of the connecting head 36 is provided with a plurality of elastic arms 29 which are uniformly distributed in the circumferential direction; the upper end of the elastic arm 29 is provided with a limiting head 30 which is attached to the bottom of the limiting hole 25.

The upper end of the outer side wall of the limiting head 30 inclines towards the axis direction of the limiting hole 25.

An annular sealing groove 31 is formed in the upper end of the valve core 4, and the sealing groove 31 is located above the arc-shaped groove 10; an O-ring 32 matched with the sealing groove 31 is arranged in the sealing groove.

A limiting block 33 is arranged on the left side of the bottom of the rotating hole 24; the front and back sides of the upper end surface of the valve body 1 are provided with stoppers 34 positioned in the rotating holes 24, and the heights of the stoppers 34 correspond to the heights of the limiting blocks 33.

The two ends of the clamp spring 23 protrude out of the limiting groove 22 and are provided with a dismounting hole 35.

The using method of the utility model is as follows:

when needing to use the angle valve, handle 6 can rotate, because the block between handle 6 passes through square hole 27 and locating head 28 and the dead fixed with the valve rod 5 card, consequently when handle 6 rotates, valve rod 5 drives case 4 along with it and takes place rotatoryly, locate opening and closing hole 9 on case 4 and take place to rotate this moment, when one of them opening and closing hole 9 rotates to the position relative with water connectors 3, the limbers 8 of case 4 lower surface center link up with water connectors 3 through opening and closing hole 9, rivers just can loop through water connectors 2 at this moment, limbers 8, open and close hole 9 and get into in water connectors 3, finally flow out from water connectors 3, in order to use.

Because the rubber pads 11 arranged at the two sides of the valve core 4 can replace rubber sleeves to enclose the valve core, the sealing mode can not only ensure the sealing property between the outer wall of the valve core 4 and the inner wall of the valve body 1, but also only embed the rubber pads 11 into the arc-shaped groove 10 when installing the rubber pads 11, the rubber pads 11 are not required to be propped open or pulled, the situation that the rubber pads 11 are deformed by overlarge external force in the installation process to cause elastic damage is effectively avoided, the elastic property of the rubber pads 11 is effectively ensured, thereby the situation that the elastic weakening or failure of the rubber pads 11 influences the sealing property between the outer wall of the valve core 4 and the inner wall of the valve body 1 is avoided, the situation of water leakage can be effectively avoided under the situation that the sealing property of the rubber pads 11 is ensured, when the rubber pads 11 are required to be replaced, only the rubber pads 11 are required to be directly pulled out from the arc-shaped groove 10, therefore, the rubber gasket 11 is very simple to assemble and disassemble, the sealing effect can be effectively changed, meanwhile, the stability of the rubber gasket 11 embedded in the arc-shaped groove 10 can be effectively improved due to the clamping between the arc-shaped clamping part 13 and the arc-shaped clamping groove 12, even if the rubber gasket 11 rotates along with the valve core 4, the rubber gasket 11 is always stably embedded in the arc-shaped groove 10, and the stability of the rubber gasket 11 when the sealing effect is achieved is effectively guaranteed.

The bottom of the arc-shaped groove 10 is provided with a plurality of anti-skid protrusions 14 which are uniformly distributed, and the existence of the anti-skid protrusions 14 can effectively increase the friction force between the rubber pad 11 and the bottom of the arc-shaped groove 10, so that the stability of the rubber pad 11 is further improved.

The number of the opening and closing holes 9 is 3, the opening and closing holes are respectively positioned on the side wall at the front side and the side walls at the left side and the right side of the valve core 4, the arc-shaped grooves 10 are respectively arranged on the side walls at the front side and the back side of the valve core 4, the middle part at the front side of the rubber pad 11 positioned in the arc-shaped groove 10 at the front side is provided with a perforation 15 communicated with the opening and closing hole 9 positioned on the side wall at the front side of the valve core 4, the middle parts at the left end and the right end of the rubber pad 11 positioned in the arc-shaped groove 10 at the front side are provided with front semicircular holes 16 which are mutually symmetrical, the middle parts at the left end and the right end of the rubber pad 11 positioned in the arc-shaped groove 10 at the back side are provided with rear semicircular holes 17 which are opposite to the positions of the front semicircular holes 16, the front semicircular holes 16 and the rear semicircular holes 17 enclose the opening and closing hole 9 positioned on the side walls at the left side and the right side of the valve core 4, when the rubber pads 11 are arranged on the front side and the back side of the valve core 4, the valve body 1 can not only effectively ensure the sealing performance, but also enclose each opening and closing hole 9, the outer ring of the orifice of the opening and closing hole 9 is sealed, so that water is effectively prevented from permeating into a gap between the outer wall of the valve core 4 and the inner wall of the valve body 1 when the opening and closing hole 9 is opened and closed, and the water leakage prevention effect of the angle valve is guaranteed to the maximum extent.

The side wall of the front side of the rubber pad 11 in the front side arc-shaped groove 10 is provided with a plurality of front annular bulges 18 which are radially distributed outwards by taking the through hole 15 as a center, each front annular bulge 18 is equivalent to one seal, a plurality of seals can be additionally arranged by taking the opening and closing hole 9 communicated with the through hole as a center through the plurality of front annular bulges 18, the sealing effect of the outer ring of the opening and closing hole 9 communicated with the through hole 15 is further improved, the hole opening at the rear end of the through hole 15 is backwards extended to form a limiting ring 37 matched with the opening and closing hole 9 positioned on the front side, and the stability of the rubber pad 11 in the front side arc-shaped groove 10 can be further improved due to the existence of the limiting ring 37.

An embedding hole 19 is formed in the middle of the bottom of the rear arc-shaped groove 10, an embedding block 20 matched with the embedding hole 19 is arranged on the side wall of the front side of the rubber pad 11 in the rear arc-shaped groove 10, and the stability of the rubber pad 11 in the rear arc-shaped groove 10 can be further improved due to the matching between the embedding hole 19 and the embedding block 20.

The side wall of the rear side of the rubber pad 11 in the arc-shaped groove 10 at the rear side is provided with a plurality of rear annular bulges 21 which are radially distributed outwards by taking the middle part of the rubber pad 11 as the center, the inner diameter of the rear annular bulge 21 at the innermost side is larger than the diameter of a left end port which is communicated with the inner space of the valve body 1, when the handle 6 drives the side wall of the valve core 4 at the previous side and the next side to rotate to the right side, the rubber pad 11 positioned in the arc-shaped groove 10 at the rear side can shield and seal the left end port communicated with the inner space of the valve body 1, the angle valve is in a closed state, at the moment, the rear annular bulge 21 is distributed radially outwards by taking the left end port of the water outlet joint 3 as the center, the existence of the rear annular bulge 21 is equivalent to that a plurality of seals are additionally arranged on the outer ring of the left end port of the water outlet joint 3, thereby effectively improve the leakproofness when the angle valve is closed, further improve the leak protection water effect of angle valve.

The easy-to-disassemble structure comprises a limiting groove 22 arranged on the inner wall of the upper part of the valve body 1, the limiting groove 22 is annular, the limiting groove 22 is positioned above the valve core 4, a snap spring 23 matched with the limiting groove 22 is arranged in the limiting groove 22, the snap spring 23 is attached to the upper end surface of the valve core 4, the lower surface of the left end of the handle 6 is provided with a rotary hole 24, the upper end of the valve body 1 is positioned in the rotary hole 24, the upper surface of the left end of the handle 6 is provided with a limiting hole 25 coaxial with the rotary hole 24, the center of the bottom of the limiting hole 25 is provided with a connecting hole 26, the bottom of the rotary hole 24 is provided with a square hole 27 communicated with the connecting hole 26, the upper end of the valve rod 5 upwards penetrates into the rotary hole 24 and is provided with a positioning head 28 matched with the square hole 27, a plurality of elastic arms 29 uniformly distributed in the circumference are arranged on the outer edge of the upper end of the positioning head 28, the upper end of the elastic arm 29 is provided with a limiting head 30 attached to the bottom of the limiting hole 25, the assembling mode can effectively improve the disassembling efficiency of the valve core 4, when the valve core 4 needs to be disassembled, the limiting head 30 can be extruded towards the valve core of the limiting hole 25 axle center, and because a gap exists between the elastic arms 29, the elastic arms 29 can deform to a certain degree, so that the limiting head can be ensured to smoothly move towards the axle center of the limiting hole 25 and be separated from the limitation of the hole bottom of the limiting hole 25, at the moment, the handle 6 is moved upwards, the limiting head 30 can enter into the connecting hole 26 and then sequentially pass through the square hole 27 and the rotating hole 24, so that the separation of the valve rod 5 and the handle 6 is realized, at the moment, the upper end port of the valve body 1 is exposed to the outside, a user can insert into the disassembling and assembling holes 35 at the two ends of the clamp spring 23 through a special tool, then the two ends of the clamp spring 23 are pulled to be close to each other, at the clamp spring 23 narrows and deforms, the clamp spring 23 is separated from the limiting groove 22, after the limit of the clamp spring 23 is lost, the valve core 4 can be directly pulled upwards through the valve rod 5, so that the valve core 4 can be taken out from the interior of the valve body 1, the whole process of dismantling of case 4 is very simple, can effectively improve case 4 and dismantle efficiency to effectively improve the change efficiency of case 4 dismantlement back rubber pad 11.

When the valve rod 5 needs to be connected with the handle 6 again, under the condition that the upper end of the outer side wall of the limiting head 30 inclines towards the axis direction of the limiting hole 25, the outer side wall of the limiting head 30 can play a guiding effect, so that the limiting head 30 is rapidly extruded into the connecting hole 26.

The upper end of the valve core 4 is provided with an annular sealing groove 31, the sealing groove 31 is positioned above the opening and closing hole 9, the sealing groove 31 is internally provided with an O-shaped ring 32 matched with the sealing groove 31, the existence of the O-shaped ring 32 can effectively improve the sealing performance between the upper end of the valve core 4 and the upper part of the valve body 1, and the condition that water flows through the port at the upper end of the valve body 1 to leak outwards is avoided.

The left side of 24 hole bottoms in rotatory holes is equipped with stopper 33, and both sides are equipped with the dog 34 that is located rotatory hole 24 around the valve body 1 up end, and dog 34 height and stopper 33 height are highly corresponding, and dog 34 can block it behind the rotatory certain angle of stopper 33 to the rotation angle of restriction handle 6 realizes opening and close accurately of angle valve through handle 6.

Claims

1. The utility model provides an easily change sealed angle valve, includes the valve body, locates the water supply connector of valve body lower extreme and locates the water outlet connector on valve body right side, is equipped with rather than assorted case in the valve body, and case upper end center is equipped with the valve rod, upwards wears out the valve body and is equipped with handle, its characterized in that on the valve rod: an annular limiting step is formed between the valve body and the water inlet joint, and the lower end face of the valve core is attached to the limiting step; a water through hole communicated with the water inlet joint is formed in the center of the lower surface of the valve core; the outer wall of the valve core is provided with a plurality of opening and closing holes which are uniformly distributed in the circumferential direction, the positions of the opening and closing holes correspond to the positions of the water outlet connectors, and the opening and closing holes are communicated with the limber holes; arc-shaped grooves which are symmetrical to each other are arranged on two sides of the valve core; a rubber pad matched with the arc-shaped groove is arranged in the arc-shaped groove, and the opening and closing hole is surrounded by the rubber pad; the upper side and the lower side of the bottom of the arc-shaped groove are provided with arc-shaped clamping grooves; the upper end and the lower end of the rubber pad extend towards the axis direction of the valve core to form arc-shaped clamping parts matched with the arc-shaped clamping grooves; the valve rod is connected with the handle through an easy-to-dismount structure.

2. An easy-to-replace-seal angle valve according to claim 1, wherein: and a plurality of evenly distributed anti-skid protrusions are arranged at the bottom of the arc-shaped groove.

3. An easy-to-replace-seal angle valve according to claim 1, wherein: the number of the opening and closing holes is 3, and the opening and closing holes are respectively positioned on the side wall of the front side of the valve core and the side walls of the left side and the right side of the valve core; the arc-shaped grooves are respectively arranged on the side walls of the front side and the rear side of the valve core; the middle part of the front side of the rubber pad in the arc-shaped groove at the front side is provided with a through hole communicated with the opening and closing hole on the side wall at the front side of the valve core, and the middle parts of the left and right ends of the rubber pad in the arc-shaped groove at the front side are provided with front semicircular holes which are mutually symmetrical; the middle parts of the left end and the right end of the rubber pad in the arc-shaped groove at the rear side are provided with rear half round holes opposite to the front half round holes, and the front half round holes and the rear half round holes enclose the opening and closing holes on the side walls at the left side and the right side of the valve core.

4. An easy-to-replace-seal angle valve according to claim 3, wherein: the side wall of the front side of the rubber pad in the arc-shaped groove at the front side is provided with a plurality of front annular bulges which are radially distributed outwards by taking the through hole as the center; and a limiting ring matched with the opening and closing hole positioned on the front side extends backwards from the hole at the rear end of the through hole.

5. An easy-to-replace-seal angle valve according to claim 3, wherein: an embedding hole is arranged in the middle of the bottom of the arc-shaped groove at the rear side; the side wall of the front side of the rubber pad positioned in the arc-shaped groove at the rear side is provided with an embedded block matched with the embedded hole; the side wall of the rear side of the rubber pad in the arc-shaped groove at the rear side is provided with a plurality of rear annular bulges which are radially distributed outwards by taking the middle part of the rubber pad as a center, and the inner diameter of the rear annular bulge at the innermost side is larger than the diameter of a left end port which is communicated with the inner space of the valve body by the water outlet joint.

6. An easy-to-replace-seal angle valve according to claim 1, wherein: the easy-to-assemble and disassemble structure comprises a limit groove arranged on the inner wall of the upper part of the valve body, the limit groove is annular, and the limit groove is positioned above the valve core; a snap spring matched with the limiting groove is arranged in the limiting groove and is attached to the upper end face of the valve core; the lower surface of the left end of the handle is provided with a rotating hole, and the upper end of the valve body is positioned in the rotating hole; the upper surface of the left end of the handle is provided with a limiting hole which is coaxial with the rotating hole; the center of the bottom of the limiting hole is provided with a connecting hole; the bottom of the rotary hole is provided with a square hole communicated with the connecting hole; the upper end of the valve rod penetrates upwards into the rotary hole and is provided with a positioning head matched with the square hole; the center of the upper end face of the positioning head is provided with a connector positioned in the connecting hole, and the outer edge of the upper end face of the connector is provided with a plurality of elastic arms which are uniformly distributed in the circumferential direction; the upper end of the elastic arm is provided with a limiting head which is attached to the bottom of the limiting hole.

7. An easy-to-replace-seal angle valve according to claim 6, wherein: the upper end of the side wall of the outer side of the limiting head inclines towards the axis direction of the limiting hole.

8. An easy-to-replace-seal angle valve according to claim 6, wherein: the upper end of the valve core is provided with an annular sealing groove which is positioned above the arc-shaped groove; and an O-shaped ring matched with the sealing groove is arranged in the sealing groove.

9. An easy-to-replace-seal angle valve according to claim 6, wherein: a limiting block is arranged on the left side of the bottom of the rotary hole; and the front side and the rear side of the upper end surface of the valve body are provided with stop blocks positioned in the rotating holes, and the height of each stop block corresponds to the height of each limit block.

10. An easy-to-replace-seal angle valve according to claim 6, wherein: the clamp spring is provided with a limiting groove and a clamping spring fixing hole.