Full-bore eccentric ball valve with flow guide hole

Abstract

The invention discloses a full-bore eccentric ball valve with a flow guide hole, and relates to the technical field of ball valves, the full-bore eccentric ball valve comprises a valve body and a T-shaped valve core, two symmetrically distributed transmission assemblies are arranged outside the valve core, the transmission assemblies are connected with sealing assemblies through second extrusion assemblies respectively, and stepped holes are formed in the two ends of the flow guide hole; sealing pipes are slidably connected into the two stepped holes correspondingly, the two transmission assemblies are connected with the two sealing pipes through the two first extrusion assemblies correspondingly, and a flushing assembly is arranged at the position, located on the outer side of the valve seat, in the second shell. Contact sealing parts of the valve are protected to a certain degree, the situation that the overall sealing effect of the valve is affected due to abrasion is prevented, vortexes, vibration and noise are generated when water flow flows through the valve can be effectively prevented, it is guaranteed that the water flow stably flows through the valve, and in the valve closing and opening process, the sealing effect of the valve is improved. Therefore, the space between the valve seat and the sealing assembly and the space between the valve seat and the sealing pipe can be washed, and impurities can be removed.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, in particular to a full-diameter eccentric ball valve with a guide hole. Background Art

[0002] The working principle of the eccentric ball valve is to open or close the valve by rotating the valve core. The ball valve is light and small in size, can be made into a large diameter, has a simple structure, is easy to maintain, and the sealing surface and the spherical surface are often in a closed state and are not easily eroded by the medium, so it has been widely used.

[0003] The prior art CN 217422256 U discloses an eccentric ball valve with a guide hole, comprising a valve body, a valve core and a driving part; the valve body is provided with a medium flow channel overlapping with the X-axis inside; the valve core is rotatably installed in a double eccentric manner, and the rotation axis is parallel to the Y-axis; a guide hole with the same diameter as the high-pressure port and the low-pressure port of the valve body is provided inside, and a sealing body capable of sealing the high-pressure port of the valve body is provided outside; when the valve core is rotated to an open state, a gap connecting the inner cavity of the valve body is left between the guide hole and the high-pressure port of the valve body; the driving part is used to drive the valve core to rotate relative to the valve body. Although the eccentric ball valve with a guide hole is provided with a guide hole with the same diameter as the high-pressure port of the valve body inside the valve core, thereby reducing the vortex of the internal high-speed fluid, thereby reducing noise and vibration and ensuring the stability of the valve operation, the eccentric ball valve has When opening and closing, there will still be a certain amount of friction between the valve core and the valve seat. Over time, as the number of opening and closing times increases, the contact sealing area between the valve core and the valve seat will inevitably cause wear and tear, and affect the overall sealing effect of the valve. Moreover, when the valve is opened, the guide hole on the valve core and the water inlet and outlet of the valve are not sealed, so the water flow will still enter the valve cavity and cause a certain amount of eddy current and vibration, which will lead to general anti-eddy current, anti-vibration and noise reduction effects. Moreover, when the valve is closed, the contact sealing area between the valve seat and the valve core is also prone to impurities such as mud and sand. These impurities will not only affect the sealing effect, but also accelerate the wear of the contact sealing area, which will directly affect the service life of the valve core and valve seat and the reliability of the valve. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a full-diameter eccentric ball valve with a guide hole, which solves the problems raised in the background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a full-diameter eccentric ball valve with a guide hole, comprising a valve body and a T-shaped valve core, the valve body comprising a first shell and a second shell, the valve core is provided with a guide hole with the same diameter as the high-pressure port and the low-pressure port of the valve body, and the valve core is provided with a sealing assembly on the outside, the second shell is provided with a valve seat adapted to the sealing assembly on the inside, the valve core is provided with two symmetrically distributed transmission assemblies on the outside, the two transmission assemblies are provided with a valve stem connected to the first shell, the first shell is fixedly connected with two limit blocks, the angle between the two limit blocks and the valve stem is ninety degrees, and the outside of the transmission assembly is fixedly connected with a positioning block between the two limit blocks;

[0008] The valve core is provided with a second extrusion assembly, and the transmission assembly is connected to the sealing assembly respectively through the second extrusion assembly;

[0009] Both ends of the guide hole are provided with stepped holes, the insides of the two stepped holes are slidably connected with sealing tubes, the outer surface of the sealing tubes is provided with sealing rings, the outside of the valve core is provided with two groups of first extrusion components, and the two transmission components are respectively connected to the two sealing tubes through the two groups of first extrusion components;

[0010] A flushing assembly is provided inside the second shell and outside the valve seat, and the flushing assembly is connected to the first extrusion assembly.

[0011] Preferably, the transmission assembly includes a connecting seat with a hollow interior, the connecting seat is fixedly connected to the outer surface of the valve core, the valve stem is rotatably connected to the connecting seat, and a disc-shaped transmission plate is provided on the valve stem inside the connecting seat, and a torsion spring is connected between the transmission plate and the valve stem.

[0012] Preferably, the outer circumferential surface of the transmission plate is provided with a first transmission groove, the first transmission groove is in the shape of an arc, one end of the first transmission groove is in the shape of a slope, and the second extrusion assembly is connected to the first transmission groove.

[0013] Preferably, the second extrusion assembly includes a second slide and a rod-shaped second extrusion member, the second slide is fixedly connected to the outer surface of the valve core, the second extrusion member is slidably connected to the second slide, and a second return spring is provided between the second extrusion member and the second slide, one end of the second extrusion member is connected to the sealing assembly, and the other end is provided with a second roller, the second roller is in contact with the transmission disk, and a second push rod is provided on the outside of the second extrusion member.

[0014] Preferably, the sealing assembly includes a disc-shaped seal and a ring-shaped ball cap, the outer surface of the seal is spherical, the ball cap is installed on the outside of the seal, the seal is fixedly connected to the second extrusion piece, and an inclined pressure rod is connected between the second extrusion piece and the seal, and the pressure rod is slidably connected to the valve core.

[0015] Preferably, the outer circumferential surface of the transmission plate is provided with two second transmission grooves, the second transmission grooves are in an arc shape, one end of the second transmission grooves is in a slope shape, and the two second transmission grooves are axially symmetrically distributed along the axis of the transmission plate.

[0016] Preferably, the first extrusion assembly includes a first slide and a first rod-shaped extrusion member, the first slide is fixedly connected to the outside of the valve core, the first extrusion member is slidably connected to the first slide, and a first return spring is provided between the first extrusion member and the first slide, one end of the first extrusion member is connected to the sealing tube, and the other end is provided with a first roller, the first roller is connected to the transmission disk, and a first push rod is provided on the outside of the first extrusion member.

[0017] Preferably, the flushing assembly includes an annular water storage member, which is fixedly connected to the interior of the second shell body, the inner diameter of the water storage member is larger than the outer diameter of the valve seat, the inner circular surface of the water storage member is located on the outside of the valve seat and is provided with a plurality of through holes distributed in a circular array, and the interior of the water storage member is provided with an annular water storage chamber connected to the through holes, the side of the water storage chamber close to the first shell body is open, and the interior of the water storage chamber is slidably connected to a sliding sealing assembly, and a third reset spring is connected between the sliding sealing assembly and the water storage member.

[0018] Preferably, the sliding sealing assembly includes an annular pressure plate and a rubber ring, and the pressure plate and the rubber ring are respectively adapted to the water storage chamber.

[0019] Preferably, a valve actuator is provided outside the first shell, and the valve actuator is connected to the valve stem.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the present invention provides a full-diameter eccentric ball valve with a guide hole, which has the following beneficial effects:

[0022] 1. When the valve is opened and closed, there is no relative sliding friction between the ball crown and the valve seat, which can effectively avoid wear on the contact sealing parts between the ball crown and the valve seat during the opening and closing process, thereby playing a certain protective role on the contact sealing parts of the valve, preventing the wear from affecting the overall sealing effect of the valve, and reducing the number of failures caused by wear during use, thereby reducing the frequency of maintenance of both during use, and to a certain extent, improving the service life of the ball crown and the valve seat.

[0023] 2. The guide hole on the valve core can be connected and sealed with the high-pressure port and the low-pressure port on the first shell and the second shell, so as to prevent water from flowing into the valve cavity through the gap when passing through the guide hole. Moreover, since the inner diameter of the guide hole is the same as the inner diameter of the high-pressure port and the low-pressure port of the valve, it can effectively prevent eddy current, vibration and noise when the water flows through the valve, thereby improving the anti-eddy current, anti-vibration and noise reduction effects of the valve, and ensuring the smooth flow of water.

[0024] 3. In the process of closing and opening the valve, the water flow sprayed from the flushing component can flush between the valve seat and the sealing component and between the valve seat and the sealing tube, and thereby remove impurities, thereby preventing the seal from being affected by the impurities between the valve seat and the sealing component after the valve is closed. Similarly, it can also prevent the impurities from affecting the seal between the valve seat and the sealing tube, thereby ensuring the sealing of the valve. At the same time, it can also avoid the accelerated wear between the valve seat and the sealing component due to impurities to a certain extent, thereby further improving the service life of related components and the reliability of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the front view and cross-section of the three-dimensional structure of the valve body of the present invention;

[0026] Figure 2 This is a schematic diagram of the cross-sectional structure of the valve body of the present invention;

[0027] Figure 3 This is a schematic diagram of the front view of the three-dimensional structure of the valve core of the present invention;

[0028] Figure 4 It is a schematic diagram of the side-view stereoscopic structure of the present invention;

[0029] Figure 5 It is a front view cross-sectional structural schematic diagram of the present invention;

[0030] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0031] Figure 7 This is a schematic diagram of the cross-sectional structure of the valve core of the present invention;

[0032] Figure 8 It is a schematic diagram of the cross-sectional structure of the valve body of the present invention from top view;

[0033] Fig. 9 It is a schematic diagram of a cross-sectional structure when the valve of the present invention is in an open state as viewed from above;

[0034] Fig.10 For the present invention Fig. 9 The enlarged structural diagram at B in the middle;

[0035] Fig.11 It is a schematic diagram of a cross-sectional structure of the sealing tube of the present invention when it is in a folded state;

[0036] Fig.12 It is a schematic diagram of the cross-sectional structure of the valve of the present invention when viewed from above before closing;

[0037] Fig.13 It is a schematic diagram of the cross-sectional structure of the valve of the present invention when viewed from above after it is closed;

[0038] Fig.14 It is a schematic diagram of the side-view stereoscopic structure of the second housing of the present invention;

[0039] Fig.15 It is a schematic diagram of the front cross-sectional structure of the flushing assembly of the present invention;

[0040] Fig.16 It is a schematic diagram of the front cross-sectional structure of the flushing assembly of the present invention.

[0041] In the figure: 1, first housing; 2, second housing; 3, valve core; 301, guide hole; 302, stepped hole; 4, valve stem; 5, valve seat; 6, sealing assembly; 601, sealing member; 602, ball crown; 7, sealing tube; 701, sealing ring; 8, transmission assembly; 801, connecting seat; 802, transmission plate; 8021, first transmission groove; 8022, second transmission groove; 803, torsion spring; 9, first extrusion assembly; 901, first extrusion member; 902, first return spring; 903, first slide seat; 904 , first push rod; 905, first roller; 10, second extrusion assembly; 1001, second slide seat; 1002, second extrusion member; 1003, second return spring; 1004, second roller; 1005, second push rod; 11, flushing assembly; 1101, water storage member; 1102, water storage chamber; 1103, rubber ring; 1104, pressure plate; 1105, through hole; 1106, third return spring; 12, limit block; 13, positioning block; 14, pressure rod; 15, protective cover; 16, valve actuator. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0046] Embodiment 1

[0047] The present invention provides Figure 1 , Figures 3 to 5 as well as Figures 8 to 13 A full-bore eccentric ball valve with a guide hole is shown:

[0048] The valve body comprises a valve body and a T-shaped valve core 3, wherein the valve body comprises a first shell 1 and a second shell 2, wherein a flow guide hole 301 having the same diameter as the high-pressure port and the low-pressure port of the valve body is provided inside the valve core 3, and a sealing component 6 is provided outside the valve core 3, and a valve seat 5 adapted to the sealing component 6 is provided inside the second shell 2, and a valve actuator 16 is provided outside the first shell 1, and the valve actuator 16 is connected to the valve stem 4;

[0049] The sealing assembly 6 includes a disc-shaped sealing member 601 and a ring-shaped spherical cap 602. The outer surface of the sealing member 601 is spherical. The spherical cap 602 is installed outside the sealing member 601. The sealing member 601 is fixedly connected to the second extrusion member 1002. An inclined pressure rod 14 is connected between the second extrusion member 1002 and the sealing member 601. The pressure rod 14 is slidably connected to the valve core 3.

[0050] Two symmetrically distributed transmission components 8 are provided outside the valve core 3, and the two transmission components 8 are provided with a valve stem 4 connected to the first housing 1. Two limit blocks 12 are fixedly connected inside the first housing 1, and the angle between the two limit blocks 12 and the valve stem 4 is ninety degrees. A positioning block 13 is fixedly connected between the two limit blocks 12 outside the transmission component 8;

[0051] The valve core 3 is provided with a second extrusion assembly 10, and the transmission assembly 8 is connected to the sealing assembly 6 through the second extrusion assembly 10;

[0052] The transmission assembly 8 includes a connection seat 801 with a hollow interior, the connection seat 801 is fixedly connected to the outer surface of the valve core 3, the valve stem 4 is rotatably connected to the connection seat 801, and a disc-shaped transmission disc 802 is provided on the valve stem 4 inside the connection seat 801, and a torsion spring 803 is connected between the transmission disc 802 and the valve stem 4;

[0053] The outer circumferential surface of the transmission plate 802 is provided with a first transmission groove 8021, the first transmission groove 8021 is in an arc shape, one end of the first transmission groove 8021 is in a slope shape, and the second extrusion assembly 10 is connected to the first transmission groove 8021;

[0054] The second extrusion assembly 10 includes a second slide 1001 and a rod-shaped second extrusion member 1002. The second slide 1001 is fixedly connected to the outer surface of the valve core 3. The second extrusion member 1002 is slidably connected to the second slide 1001, and there is a second return spring 1003 between the second extrusion member 1002 and the second slide 1001. One end of the second extrusion member 1002 is connected to the sealing assembly 6, and the other end is provided with a second roller 1004. The second roller 1004 is located inside the first transmission groove 8021. A second push rod 1005 is provided outside the second extrusion member 1002.

[0055] Working principle: When the valve is in the open state, the guide hole 301 on the valve core 3 is just in contact with the

[0056] The high-pressure ports on the first shell 1 and the second shell 2 are aligned with the low-pressure ports. At this time, water can flow through the valve through the high-pressure port, the guide hole 301 and the low-pressure port. In this state, the torsion spring 803 is in a compressed state, and the positioning block 13 just contacts one of the limit blocks 12. Figure 8 and Fig. 9 As shown;

[0057] When the valve needs to be closed, the valve actuator 16 drives the valve stem 4 to rotate counterclockwise around its axis by a certain angle (the specific rotation direction is as follows: Fig. 9The valve stem 4 will also drive the transmission plate 802 to rotate synchronously, and make the inclined surface end of the first transmission groove 8021 gradually approach the second roller 1004. During this process, since the torsion spring 803 is in a compressed state, the valve core 3 and the sealing assembly 6 will not rotate under the action of the rebound force of the torsion spring 803. Therefore, the rotation of the valve stem 4 will first restore the torsion spring 803 in the compressed state to a normal state without compression or extension (as shown in the specific example). Fig.11 As shown), when this state is reached, the valve actuator 16 drives the valve stem 4 to continue to rotate counterclockwise. At this time, since the torsion spring 803 itself has a certain elastic force, the valve stem 4 can drive the connecting seat 801 to rotate through the torsion spring 803, and the connecting seat 801 then drives the valve core 3 and the sealing component 6 to rotate (the rotation direction is shown in FIG. Fig.11 The transmission plate 802 will also rotate synchronously, and the second extrusion assembly 10 will also move synchronously with the valve core 3 until the sealing assembly 6 rotates to 90 degrees, and the ball crown 602 on the sealing assembly 6 just corresponds to the valve seat 5. Fig.12 As shown in the figure, the positioning block 13 will also rotate 90 degrees with the connecting seat 801 and be blocked by another limiting block 12; then the valve actuator 16 drives the valve stem 4 to continue to rotate counterclockwise. At this time, under the limiting effect of the limiting block 12 on the positioning block 13, the connecting seat 801, the valve core 3 and the sealing assembly 6 will not rotate, and the valve stem 4 will drive the transmission plate 802 to continue to rotate a certain angle. In this process, the torsion spring 803 will be stretched to a certain extent, and the inclined surface of the first transmission groove 8021 will gradually contact the second roller 1004, and the valve stem 4 will rotate counterclockwise. The second roller 1004 is used to squeeze and push the second extrusion member 1002, and the second extrusion member 1002 is pushed to slide on the second slide seat 1001, and the second return spring 1003 is compressed. The sliding of the second extrusion member 1002 can push the sealing member 601 and the ball crown 602 to move toward the valve seat 5 through itself and the pressure rod 14, and finally the ball crown 602 is pressed tightly against the valve seat 5, and the valve actuator 16 also stops driving the valve stem 4, thereby sealing the valve seat 5, and thus closing the valve. (Specifically, Fig.13 As shown), when closed, there is no relative sliding friction between the ball crown 602 and the valve seat 5, so that wear on both during the opening and closing process can be avoided. The arrangement of the pressure rod 14 can make the sealing member 601 receive the thrust from the second extrusion member 1002 more uniformly, thereby ensuring a reliable seal between the valve seat 5 and the sealing assembly 6;

[0058] When the valve needs to be opened, the valve actuator 16 drives the valve stem 4 and the transmission disk 802 to rotate clockwise to the same angle as when the valve is closed. Similarly, the torsion spring 803 in a stretched state will first prevent the connecting seat 801, the valve core 3 and the sealing assembly 6 from rotating. In this process, the first transmission groove 8021 will first deflect to the second roller 1004 along with the transmission disk 802, and then the second roller 1004 will slide into the first transmission groove 8021 along the inclined surface under the action of the rebound force of the second return spring 1003, so that the second extrusion member 1002 drives the sealing member 601 and the ball crown 602 to slide away from the valve seat 5. And make the ball crown 602 separate from the valve seat 5. When the torsion spring 803 returns to the normal state, the valve actuator 16 drives the valve stem 4 to continue to rotate clockwise. At this time, the valve stem 4 can drive the connecting seat 801, the valve core 3, and the sealing assembly 6 to rotate ninety degrees through the torsion spring 803. The limit block 12 and the positioning block 13 will also limit the rotation of the valve core 3 to ensure that the guide hole 301 just corresponds to the high-pressure port and the low-pressure port on the first shell 1 and the second shell 2 at this time, so as to open the valve. In addition, during the opening process, there is no relative sliding friction between the ball crown 602 and the valve seat 5, so that wear on both during the opening and closing process can be avoided.

[0059] Embodiment 2

[0060] The present invention provides Figures 1 to 13 A full-bore eccentric ball valve with a guide hole is shown:

[0061] Both ends of the guide hole 301 are provided with stepped holes 302, the insides of the two stepped holes 302 are slidably connected with sealing tubes 7, and a sliding sealing ring is provided between the stepped hole 302 and the sealing tube 7, and a sealing ring 701 is provided on the outer surface of the sealing tube 7, and two groups of first extrusion components 9 are provided on the outside of the valve core 3, and the two transmission components 8 are respectively connected to the two sealing tubes 7 through the two groups of first extrusion components 9;

[0062] The outer circumferential surface of the transmission plate 802 is provided with two second transmission grooves 8022, the second transmission grooves 8022 are in the shape of an arc, one end of the second transmission groove 8022 is in the shape of a bevel, and the two second transmission grooves 8022 are axially symmetrically distributed along the axis of the transmission plate 802, and the two groups of first extrusion components 9 can be connected to the two second transmission grooves 8022 respectively;

[0063] The first extrusion assembly 9 includes a first slide 903 and a rod-shaped first extrusion member 901. The first slide 903 is fixedly connected to the outside of the valve core 3. The first extrusion member 901 is slidably connected to the first slide 903. A first return spring 902 is provided between the first extrusion member 901 and the first slide 903. One end of the first extrusion member 901 is connected to the sealing tube 7, and the other end is provided with a first roller 905. The first roller 905 abuts against the outer cylindrical surface of the transmission disk 802, and a first push rod 904 is provided on the outside of the first extrusion member 901.

[0064] Working principle: When the valve is in the closed state, Fig.13 As shown, the first roller 905 is located in the second transmission groove 8022 and at the end away from the inclined surface. When the valve actuator 16 drives the valve stem 4 to rotate clockwise to open the valve, in the process of restoring the torsion spring 803 in the stretched state to the normal state, under the action of the rebound force of the torsion spring 803, the connecting seat 801, the valve core 3 and the sealing assembly 6 will not rotate. Therefore, the valve stem 4 will drive the transmission plate 802 to rotate clockwise by a certain angle first, and make the inclined surface end of the second transmission groove 8022 close to the first roller 905. Fig.12 As shown, the valve actuator 16 then drives the connecting seat 801, the valve core 3 and the sealing assembly 6 to rotate ninety degrees clockwise through the valve stem 4 and the torsion spring 803, as shown in FIG. Fig.11 As shown, at this time, the positioning block 13 is deflected and moved from one of the limit blocks 12 to the other limit block 12, so as to achieve the purpose of rotating 90 degrees for positioning. Then, the valve actuator 16 will still drive the valve stem 4 to continue to rotate a certain angle. At this time, under the limiting action of the limit block 12 and the positioning block 13, the connecting seat 801, the valve core 3 and the sealing assembly 6 will not rotate. As the valve stem 4 and the transmission plate 802 continue to rotate, the inclined surface of the second transmission groove 8022 will also contact the first roller 905 and pass through the first roller 906. A roller 905 squeezes and pushes the first extrusion member 901, so that the first extrusion member 901 slides on the first slide seat 903 and compresses the first return spring 902. The sliding first extrusion member 901 can push the sealing tube 7 to move toward the valve seat 5 until the valve stem 4 stops rotating. One of the sealing tubes 7 is also pressed against the valve seat 5 through the sealing ring 701 on its outer surface, and the other sealing tube 7 is also pressed against the inner surface of the first housing 1 through the sealing ring 701 on its outer surface. Figure 1 , 5 As shown in FIG. 9 , the guide hole 301 on the valve core 3 is connected and sealed with the high-pressure port and the low-pressure port on the first shell 1 and the second shell 2. Moreover, since the inner diameter of the guide hole 301 is the same as the inner diameter of the high-pressure port and the low-pressure port of the valve, it can effectively prevent eddy currents, vibrations and noises when water flows through the valve.

[0065] Moreover, a protective cover 15 may be installed outside the first extrusion assembly 9 and the second extrusion assembly 10 to protect the first extrusion assembly 9 and the second extrusion assembly 10 .

[0066] Embodiment 3

[0067] The present invention provides Figure 1 , Figure 2 , Figure 5 , Figure 6 as well as Figures 14 to 16 A full-bore eccentric ball valve with a guide hole is shown:

[0068] A flushing assembly 11 is provided inside the second housing 2 and outside the valve seat 5 , and the flushing assembly 11 is connected to the first extrusion assembly 9 ;

[0069] The flushing assembly 11 includes an annular water storage member 1101, which is fixedly connected to the inside of the second shell 2. The inner diameter of the water storage member 1101 is larger than the outer diameter of the valve seat 5. The inner circular surface of the water storage member 1101 is located outside the valve seat 5 and is provided with a plurality of through holes 1105 distributed in an annular array, and the inside of the water storage member 1101 is provided with an annular water storage chamber 1102 connected with the through holes 1105. The side of the water storage chamber 1102 close to the first shell 1 is open, and the inside of the water storage chamber 1102 is slidably connected with a sliding sealing assembly, and a third reset spring 1106 is connected between the sliding sealing assembly and the water storage member 1101;

[0070] The sliding sealing assembly includes an annular pressure plate 1104 and a rubber ring 1103. The pressure plate 1104 and the rubber ring 1103 are respectively adapted to the water storage chamber 1102. The third return spring 1106 can push the pressure plate 1104 and the rubber ring 1103 to the opening of the water storage chamber 1102 close to the valve core 3 through its rebound force. During this process, the sliding of the rubber ring 1103 will form a negative pressure in the inner cavity of the water storage chamber 1102, and thereby draw external water into the water storage chamber 1102 through the through hole 1105, thereby achieving the purpose of water storage.

[0071] Working principle: When the valve is closed, the transmission component 8 presses the sealing component 6 onto the valve seat 5 by squeezing the second extrusion component 1002, thereby realizing the closing and sealing of the valve. While the second extrusion component 1002 is squeezed and slid by the transmission component 8, the second push rod 1005 on the second extrusion component 1002 can enter the interior of the water storage chamber 1102 through the opening of the water storage chamber 1102, and push the pressure plate 1104 and the rubber ring 1103 to slide in the direction of the through hole 1105, and compress the third return spring 1106 to a certain extent. At this time, the water in the water storage chamber 1102 can be sprayed between the sealing component 6 and the valve seat 5 through the through hole 1105, and thereby remove impurities adhering to the sealing component 6 and the valve seat 5, thereby preventing some impurities from being mixed in the process of closing the seal between the sealing component 6 and the valve seat 5. In the process of opening the valve, the second extrusion member 1002 and the second push rod 1005 are first pulled out of the water storage chamber 1102, and the valve core 3 and the sealing assembly 6 are then deflected under the action of the torsion spring 803, so that the opening and closing of the valve will not be affected. In addition, in this process, the third reset spring 1106 resets the pressure plate 1104 and the rubber ring 1103 by rebounding, and the purpose of water storage is achieved.

[0072] Similarly, when the valve is opened, the first extrusion member 901 pushes the sealing tube 7 to press the sealing tube 7 against the valve seat 5. In the process, the first extrusion member 901 also pushes the pressure plate 1104 and the rubber ring 1103 through the first push rod 904, thereby spraying water between the sealing tube 7 and the valve seat 5, thereby removing impurities between the sealing tube 7 and the valve seat 5 and preventing impurities from being mixed between the sealing tube 7 and the valve seat 5.

[0073] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A full-diameter eccentric ball valve with a guide hole, comprising a valve body and a T-shaped valve core (3), the valve body comprising a first shell (1) and a second shell (2), the valve core (3) having a guide hole (301) of equal diameter to the high-pressure port and the low-pressure port of the valve body, and a sealing component (6) is provided on the outside of the valve core (3), and a valve seat (5) adapted to the sealing component (6) is provided on the inside of the second shell (2), characterized in that: The valve core (3) is provided with two symmetrically distributed transmission components (8) on the outside, and the two transmission components (8) are provided with a valve stem (4) connected to the first housing (1). The inside of the first housing (1) is fixedly connected with two limit blocks (12), and the angle between the two limit blocks (12) and the valve stem (4) is ninety degrees. The outside of the transmission component (8) is fixedly connected with a positioning block (13) between the two limit blocks (12); The valve core (3) is provided with a second extrusion assembly (10), and the transmission assembly (8) is respectively connected to the sealing assembly (6) through the second extrusion assembly (10); Both ends of the guide hole (301) are provided with stepped holes (302), the interiors of the two stepped holes (302) are slidably connected with sealing tubes (7), the outer surface of the sealing tube (7) is provided with a sealing ring (701), the outside of the valve core (3) is provided with two groups of first extrusion components (9), and the two transmission components (8) are respectively connected to the two sealing tubes (7) through the two groups of first extrusion components (9); A flushing assembly (11) is provided inside the second shell (2) and outside the valve seat (5), and the flushing assembly (11) is respectively connected to the second extrusion assembly (10) and the first extrusion assembly (9).

2. The full-diameter eccentric ball valve with a guide hole according to claim 1, characterized in that: The transmission assembly (8) comprises a connection seat (801) with a hollow interior, the connection seat (801) is fixedly connected to the outer surface of the valve core (3), the valve stem (4) is rotatably connected to the connection seat (801), and a disc-shaped transmission disk (802) is provided on the valve stem (4) inside the connection seat (801), and a torsion spring (803) is connected between the transmission disk (802) and the valve stem (4).

3. The full-diameter eccentric ball valve with a guide hole according to claim 2, characterized in that: The outer circumferential surface of the transmission plate (802) is provided with a first transmission groove (8021), the first transmission groove (8021) is in the shape of an arc, one end of the first transmission groove (8021) is in the shape of a slope, and the second extrusion assembly (10) is connected to the first transmission groove (8021).

4. The full-diameter eccentric ball valve with a guide hole according to claim 3, characterized in that: The second extrusion assembly (10) comprises a second slide seat (1001) and a rod-shaped second extrusion member (1002); the second slide seat (1001) is fixedly connected to the outer surface of the valve core (3); the second extrusion member (1002) is slidably connected to the second slide seat (1001); and a second return spring (1003) is arranged between the second extrusion member (1002) and the second slide seat (1001); one end of the second extrusion member (1002) is connected to the sealing assembly (6); and the other end is provided with a second roller (1004); the second roller (1004) is in contact with the transmission disk (802); and a second push rod (1005) is arranged outside the second extrusion member (1002).

5. The full-diameter eccentric ball valve with a guide hole according to claim 4, characterized in that: The sealing assembly (6) comprises a disc-shaped sealing member (601) and a ring-shaped spherical cap (602); the outer surface of the sealing member (601) is spherical; the spherical cap (602) is mounted on the outside of the sealing member (601); the sealing member (601) is fixedly connected to the second extruded member (1002); an inclined pressure rod (14) is connected between the second extruded member (1002) and the sealing member (601); and the pressure rod (14) is slidably connected to the valve core (3).

6. The full-diameter eccentric ball valve with a guide hole according to claim 2, characterized in that: The outer circumferential surface of the transmission disc (802) is provided with two second transmission grooves (8022), the second transmission grooves (8022) are in an arc shape, one end of the second transmission groove (8022) is in an inclined surface shape, and the two second transmission grooves (8022) are axially symmetrically distributed along the axis of the transmission disc (802).

7. The full-diameter eccentric ball valve with a guide hole according to claim 6, characterized in that: The first extrusion assembly (9) comprises a first slide seat (903) and a rod-shaped first extrusion member (901), wherein the first slide seat (903) is fixedly connected to the outside of the valve core (3), the first extrusion member (901) is slidably connected to the first slide seat (903), and a first return spring (902) is provided between the first extrusion member (901) and the first slide seat (903), one end of the first extrusion member (901) is connected to the sealing tube (7), and the other end is provided with a first roller (905), the first roller (905) is connected to the transmission plate (802), and a first push rod (904) is provided on the outside of the first extrusion member (901).

8. The full-diameter eccentric ball valve with a guide hole according to claim 7, characterized in that: The flushing assembly (11) comprises an annular water storage member (1101), the water storage member (1101) being fixedly connected to the interior of the second shell (2), the inner diameter of the water storage member (1101) being larger than the outer diameter of the valve seat (5), the inner circular surface of the water storage member (1101) being located outside the valve seat (5) and being provided with a plurality of through holes (1105) distributed in an annular array, and the interior of the water storage member (1101) being provided with an annular water storage chamber (1102) communicating with the through holes (1105), the side of the water storage chamber (1102) close to the first shell (1) being open, and a sliding sealing assembly being slidably connected to the interior of the water storage chamber (1102), and a third reset spring (1106) being connected between the sliding sealing assembly and the water storage member (1101).

9. The full-diameter eccentric ball valve with a guide hole according to claim 8, characterized in that: The sliding seal assembly comprises an annular pressure plate (1104) and a rubber ring (1103), and the pressure plate (1104) and the rubber ring (1103) are respectively adapted to the water storage chamber (1102).

10. The full-diameter eccentric ball valve with a guide hole according to claim 1, characterized in that: A valve actuator (16) is provided outside the first housing (1), and the valve actuator (16) is connected to the valve stem (4).

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