CN212718181U

CN212718181U - Four-way ball valve

Info

Publication number: CN212718181U
Application number: CN202021495389.9U
Authority: CN
Inventors: 叶南伟; 舒虎刚; 郭国武; 范志伟
Original assignee: Longquan Huifeng Import And Export Co ltd
Current assignee: Zhejiang Zhihui Automotive Thermal Management Technology Co.,Ltd.
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-03-16
Anticipated expiration: 2030-07-24

Abstract

The utility model provides a four-way ball valve. This four-way ball valve includes valve body (1), disk seat (2), locking joint (3), elastic component (4) and spherical case (5), install in the valve pocket of valve body (1) spherical case (5), valve body (1) includes four installation passageways, be provided with one locking joint (3) in every installation passageway, each locking joint (3) is provided with the mounting groove towards the position of spherical case (5), can be provided with one disk seat (2) with sliding in every mounting groove, disk seat (2) have the spherical concave surface with the sphere looks adaptation of spherical case (5), elastic component (4) are installed between the tank bottom of disk seat (2) and mounting groove, and exert the elastic force who compresses tightly on spherical case (5) to disk seat (2). According to the utility model discloses a cross ball valve can effectively avoid the case because the internal leakage problem that wearing and tearing caused, the working property when guaranteeing cross ball valve long-term use.

Description

Four-way ball valve

Technical Field

The utility model relates to a fluid control technical field, in particular to cross ball valve.

Background

The four-way ball valve can simultaneously switch the flow directions of two media by rotating the ball body by 90 degrees only by operating a wrench or a driving mechanism, is convenient and rapid, can realize the effect of multiple purposes of one valve, and has the characteristics of small fluid resistance, good sealing performance and long service life.

However, in the working process of the four-way valve, because the steel ball serving as the valve core rotates for a long time, abrasion is generated between the valve core and the valve seat, so that the spherical surface is abraded in a sealing manner, the internal leakage is large, and the service performance of the four-way ball valve is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four-way ball valve can effectively avoid the case because the internal leakage problem that wearing and tearing caused, the working property when guaranteeing four-way ball valve long-term use.

For solving the technical problem, as an aspect of the utility model, the utility model provides a four-way ball valve, which comprises a valve body, the disk seat, locking joint, elastic component and spherical case, spherical case installs in the valve pocket of valve body, the valve body includes four installation passageways, be provided with a locking joint in every installation passageway, each locking joint is provided with the mounting groove towards spherical case's position, can be provided with a disk seat in every mounting groove with sliding, the disk seat has the spherical concave surface with spherical case's sphere looks adaptation, the elastic component is installed between the tank bottom of disk seat and mounting groove, and apply the elastic force that compresses tightly on spherical case to the disk seat, make to form sealed laminating between disk seat and the spherical case.

The utility model discloses a four-way ball valve, adopt split type structure to form sealed disk seat with ball valve core and design, and be provided with the elastic component in the outside of every disk seat, consequently can be at ball valve core long-term work's in-process, when because wearing and tearing take place the internal leakage, in time adjust the cooperation position of disk seat through the elastic component, make the disk seat compress tightly on ball valve core all the time, and form sealed cooperation between the ball valve core, consequently can effectively avoid the internal leakage problem that causes because wearing and tearing between ball valve core and the disk seat, guarantee stability and the reliability of four-way ball valve in the long-term work process.

Drawings

Fig. 1 is an exploded schematic view of a four-way ball valve according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a four-way ball valve according to an embodiment of the present invention;

FIG. 3 shows a schematic sectional view from A-A in FIG. 2;

FIG. 4 is a sectional view of the four-way ball valve of FIG. 2 in an initial state from direction B-B;

FIG. 5 is a cross-sectional view of the four-way ball valve of FIG. 2 taken along line B-B when rotated 90 counterclockwise;

FIG. 6 is a C-direction block diagram of the four-way ball valve of FIG. 2 in an initial state;

FIG. 7 is a C-direction structural view of the four-way ball valve of FIG. 2 when rotated 90 counterclockwise;

fig. 8 shows an exploded structure diagram of the positioning seat and the spherical valve core of the four-way ball valve according to the embodiment of the present invention.

Reference numbers in the figures: 1. a valve body; 2. a valve seat; 3. locking the joint; 4. an elastic member; 5. a spherical valve core; 6. a seal ring; 7. a first mandrel; 8. a first centering hole; 9. a second mandrel; 10. a second centering hole; 11. positioning seats; 12. a drive mechanism; 13. a limiting groove; 14. a limiting block; 15. a coupling sleeve; 16. a dust-proof groove; 17. a dust cover; 18. a first limiting surface; 19. a second limiting surface; 20. a first stop surface; 21. a second stop surface.

Detailed Description

The embodiments of the invention are described in detail below, but the invention can be implemented in many different ways, which are defined and covered by the claims.

Please refer to fig. 1 to 8, according to the embodiment of the present invention, the four-way ball valve includes a valve body 1, a valve seat 2, a locking joint 3, an elastic member 4 and a ball valve core 5, the ball valve core 5 is installed in the valve cavity of the valve body 1, the valve body 1 includes four installation channels, a locking joint 3 is provided in each installation channel, each locking joint 3 is provided with a mounting groove towards the position of the ball valve core 5, a valve seat 2 can be slidably provided in each mounting groove, the valve seat 2 has a spherical concave surface adapted to the spherical surface of the ball valve core 5, the elastic member 4 is installed between the groove bottoms of the valve seat 2 and the mounting groove, and applies an elastic force pressing the valve seat 2 on the ball valve core 5, so as to form a sealing joint between the valve seat 2 and the.

The utility model discloses a four-way ball valve, adopt split type structure to form sealed disk seat 2 with ball valve core 5 and design, and be provided with elastic component 4 in every disk seat 2's the outside, consequently can be at ball valve core 5 long-term work's in-process, when because wearing and tearing take place the internal leakage, through the cooperation position of elastic component 4 in time adjustment disk seat, make disk seat 2 compress tightly on ball valve core 5 all the time, and form sealed cooperation between ball valve core 5, consequently can effectively avoid the internal leakage problem that causes because wearing and tearing between ball valve core 5 and the disk seat 2, guarantee stability and the reliability of four-way ball valve in the long-term work process.

In addition, because the valve seat 2 adopts split type structural design, cooperate with the ball-shaped valve core 5 from four directions, consequently can form certain spacing to the ball-shaped valve core 5, guarantee that the ball-shaped valve core 5 can only rotate, and can't take place the motion of other directions.

The elastic piece 4 is a disk spring, and a sealing ring 6 is arranged on the sliding matching surface of the valve seat 2 and the mounting channel. In this embodiment, four disk seats 2 are the annular, follow four directions of ball-shaped valve core 5 to middle extrusion, and form sealed cooperation between the ball-shaped valve core 5 to avoid taking place the intercommunication problem between each interface of ball-shaped valve core 5, make each interface of ball-shaped valve core 5 only can realize the intercommunication through inner channel, effectively realize four-way ball valve's intercommunication switching action. In order to ensure the extending effectiveness of the valve seat 2 and avoid the problem that the valve seat 2 cannot be closely matched with the surface of the spherical valve core 5 due to mutual extrusion interference between the valve seats 2, certain gaps are formed between the adjacent valve seats 2 and used for forming the movement allowance of the valve seat 2, and the valve seat 2 can have enough movement space to seal the spherical valve core 5.

In this embodiment, the sealing rings 6 are disposed between the inner walls of the installation channels of the valve seat 2 and the locking joint 3 and between the locking joint 3 and the fitting surface of the valve body 1, so that even in the process of switching the ball-shaped valve core 5, the refrigerant enters the gap between the adjacent valve seats 2, and the refrigerant is still kept inside the valve body 1 due to the sealing effect formed by the sealing rings 6, and the leakage problem cannot occur.

The locking connector 3 is provided with a refrigerant connecting channel, the disc spring and the valve seat 2 are both of hollow structures, a through hole communicated with the refrigerant connecting channel is formed in the middle of each hollow structure, and a refrigerant interface of the spherical valve core 5 is communicated with the refrigerant connecting channel. The communication relation between the refrigerant interface and the refrigerant connecting channel can be adjusted by adjusting the rotating position of the spherical valve core 5, so that the switching of the flowing direction of the refrigerant is realized.

Be provided with the backstop boss on locking joint 3, be provided with the installation step on valve body 1, the backstop boss backstop of locking joint 3 is outside the installation step to can be spacing to the backstop boss through the installation step, it is spacing to the axial installation of locking joint 3 to form, guarantee the accuracy of the mounted position of locking joint 3, effectively restrict locking joint 3 and apply to the pressure of spherical case 5.

The bottom of the spherical valve core 5 is provided with a first mandrel 7, the central axis of the first mandrel 7 coincides with the rotation axis of the spherical valve core 5, a first centering hole 8 is formed in the corresponding position of the valve body 1, and the first mandrel 7 is installed in the first centering hole 8. In the present embodiment, the first mandrel 7 and the ball valve element 5 are welded and fixed. The first mandrel 7 and the first centering hole 8 form a rotating fit relation, and the rotation of the spherical valve core 5 can be limited, so that the spherical valve core 5 can only rotate around the central axis of the first mandrel 7, and the accuracy of the rotating direction of the spherical valve core 5 is ensured.

The top of valve body 1 is provided with the installation opening, and the internal fixation of installation opening is provided with positioning seat 11, is provided with second centering hole 10 on the positioning seat 11, and the top of spherical case 5 is provided with second dabber 9, and second dabber 9 is installed in second centering hole 10. The second mandrel 9 is matched with the second centering hole 10, a limiting effect can be formed from the top of the spherical valve core 5, and the spherical valve core 5 is guaranteed to rotate around the central axis of the second mandrel 9. The central axes of the first mandrel 7 and the second mandrel 9 are overlapped, and the first mandrel 7 and the second mandrel 9 interact with each other, so that the accuracy and the reliability of the movement direction of the spherical valve core 5 can be further improved.

A sealing ring 6 is arranged between the second mandrel 9 and the positioning seat 11; and/or a sealing ring 6 is arranged between the positioning seat 11 and the valve body 1. The sealing ring 6 is arranged, so that the refrigerant leakage can be effectively prevented.

The top of the positioning seat 11 is provided with a driving mechanism 12, the second mandrel 9 and the spherical valve core 5 form an anti-rotation fit, the driving mechanism 12 and the second mandrel 9 are in driving connection, and the driving mechanism 12 controls the rotation position of the spherical valve core 5 through the second mandrel 9. In this embodiment, the second mandrel 9 has a longer length, penetrates through the positioning seat 11, and is in driving connection with the driving mechanism 12, so that the rotational driving force of the driving mechanism 12 can be transmitted, the rotational position of the spherical valve core 5 can be adjusted, and the refrigerant flow path can be switched. Because the second mandrel 9 and the spherical valve core 5 form anti-rotation fit, the effectiveness of transmitting the rotation torque can be ensured.

In this embodiment, the second mandrel 9 and the spherical valve core 5 are welded and fixed. The second mandrel 9 may also form a D-axis at the end that mates with the ball valve element 5, or may form a key connection with the ball valve element 5, or may form a rotation transmission structure in other ways.

The top of positioning seat 11 is provided with spacing groove 13, is provided with stopper 14 in the spacing groove 13, and second dabber 9 wears to establish in stopper 14 to form with stopper 14 and prevent changeing the cooperation, stopper 14 is injectd at 90 within ranges rotations in spacing groove 13.

In this embodiment, the limiting groove 13 includes a first limiting surface 18 and a second limiting surface 19, the first limiting surface 18 and the second limiting surface 19 form an included angle of 180 degrees, the limiting block 14 includes a first stopping surface 20 and a second stopping surface 21, the first stopping surface 20 and the second stopping surface 21 form an included angle of 90 degrees, the first stopping surface 20 is in stopping fit with the first limiting surface 18, and the second stopping surface 21 is in stopping fit with the second limiting surface 19.

Because the included angle between two spacing faces of spacing groove 13 is 180 °, and the included angle between two backstop faces of stopper 14 is 90 °, consequently, stopper 14 is 90 for 180 ° -90 ° at the turned angle of spacing inslot 13, that is, stopper 14 is 90 at the turned angle of spacing inslot 13, therefore has effectively formed the restriction to the turned angle of spherical valve core 5.

In this embodiment, the portion of the second core shaft 9 located in the limiting groove 13 is a rectangular cross section, and the inner hole of the limiting block 14 is also a rectangular cross section, so that the second core shaft 9 and the limiting block 14 can form an anti-rotation fit. The anti-rotation fit of the second mandrel 9 and the stopper 14 can also be in other structural forms.

The driving mechanism 12 is connected with the second mandrel 9 through a coupling sleeve 15. The coupling sleeve 15 is used for switching, and the contact length of the driving motor with the driving mechanism 12 can be increased, so that the structural strength of the driving connection structure is enhanced, and the reliability and the stability of the driving connection between the driving motor and the second mandrel 9 are improved. The drive mechanism 12 also includes an actuator for controlling the operation of the drive motor.

The top of the positioning seat 11 is further provided with a dustproof groove 16, the limiting groove 13 is located at the bottom of the dustproof groove 16, a dustproof cover 17 is arranged in the dustproof groove 16, and the dustproof cover 17 covers the limiting block 14. The dust-proof groove 16 can make the installation position of the dust-proof cover 17 sink below the surface of the positioning seat 11, so as to prevent the dust-proof cover 17 from protruding out of the installation surface of the positioning seat 11. The annular bulge extending upwards is further arranged in the center hole of the dust cover 17, and the annular bulge is in sealing contact with the bottom of the driving mechanism 12, so that the inner side of the dust cover 17 can form a sealing cavity, effective sealing protection is formed on the second mandrel 9, the limiting block 14, the limiting groove 13 and the like which are located on the inner side of the dust cover 17, and the dust-proof performance of the four-way ball valve is improved.

Because the structure size of the actuator of the driving mechanism 12 is large, in order to conveniently realize the installation and fixation of the driving mechanism 12 on the positioning seat 11, a fixing block is fixedly arranged on the outer side of the positioning seat 11, and the fixing block is positioned on the outer side of the side wall of the positioning seat 11, so that the installation area of the positioning seat 11 can be enlarged, and the installation and fixation of the driving mechanism 12 can be conveniently realized.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A four-way ball valve is characterized by comprising a valve body (1), a valve seat (2), locking joints (3), an elastic piece (4) and a spherical valve core (5), wherein the spherical valve core (5) is installed in a valve cavity of the valve body (1), the valve body (1) comprises four installation channels, one locking joint (3) is arranged in each installation channel, an installation groove is formed in the position, facing the spherical valve core (5), of each locking joint (3), one valve seat (2) is slidably arranged in each installation groove, the valve seat (2) is provided with a spherical concave surface matched with the spherical surface of the spherical valve core (5), the elastic piece (4) is installed between the valve seat (2) and the groove bottom of the installation groove and applies elastic force pressing the valve seat (2) on the spherical valve core (5), so that the valve seat (2) and the spherical valve core (5) form sealing fit.

2. The four-way ball valve according to claim 1, wherein the elastic member (4) is a disc spring, and a sealing ring (6) is arranged on the sliding matching surface of the valve seat (2) and the mounting channel.

3. The four-way ball valve according to claim 1, wherein a first mandrel (7) is arranged at the bottom of the ball-shaped valve core (5), the central axis of the first mandrel (7) is coincident with the rotation axis of the ball-shaped valve core (5), a first centering hole (8) is arranged at the corresponding position of the valve body (1), and the first mandrel (7) is installed in the first centering hole (8).

4. The four-way ball valve according to claim 1, wherein the top of the valve body (1) is provided with a mounting opening, a positioning seat (11) is fixedly arranged in the mounting opening, a second centering hole (10) is arranged on the positioning seat (11), a second mandrel (9) is arranged on the top of the spherical valve core (5), and the second mandrel (9) is arranged in the second centering hole (10).

5. The four-way ball valve according to claim 4, wherein a sealing ring (6) is arranged between the second mandrel (9) and the positioning seat (11); and/or a sealing ring (6) is arranged between the positioning seat (11) and the valve body (1).

6. The four-way ball valve according to claim 4, wherein a driving mechanism (12) is arranged on the top of the positioning seat (11), the second mandrel (9) and the ball valve core (5) form an anti-rotation fit, the driving mechanism (12) is in driving connection with the second mandrel (9), and the driving mechanism (12) controls the rotation position of the ball valve core (5) through the second mandrel (9).

7. The four-way ball valve according to claim 6, wherein a limiting groove (13) is formed in the top of the positioning seat (11), a limiting block (14) is arranged in the limiting groove (13), the second mandrel (9) penetrates through the limiting block (14) and forms an anti-rotation fit with the limiting block (14), and the limiting groove (13) limits the limiting block (14) to rotate within a range of 90 degrees.

8. The four-way ball valve according to claim 6, wherein the driving mechanism (12) is connected with the second mandrel (9) through a coupling sleeve (15).

9. The four-way ball valve according to claim 7, wherein a dustproof groove (16) is further formed in the top of the positioning seat (11), the limiting groove (13) is located at the bottom of the dustproof groove (16), a dustproof cover (17) is arranged in the dustproof groove (16), and the dustproof cover (17) covers the limiting block (14).

10. The four-way ball valve according to claim 7, wherein the limiting groove (13) comprises a first limiting surface (18) and a second limiting surface (19), the first limiting surface (18) and the second limiting surface (19) are at an included angle of 180 degrees, the limiting block (14) comprises a first stopping surface (20) and a second stopping surface (21), the first stopping surface (20) and the second stopping surface (21) are at an included angle of 90 degrees, the first stopping surface (20) is in stopping fit with the first limiting surface (18), and the second stopping surface (21) is in stopping fit with the second limiting surface (19).