CN210890197U

CN210890197U - Novel ball valve

Info

Publication number: CN210890197U
Application number: CN201921447242.XU
Authority: CN
Inventors: 盛万聪
Original assignee: Zhejiang Tashan Fluid Control Technology Co ltd
Current assignee: Zhejiang Tashan Fluid Control Technology Co ltd
Priority date: 2019-09-02
Filing date: 2019-09-02
Publication date: 2020-06-30
Anticipated expiration: 2029-09-02

Abstract

The utility model belongs to the technical field of the valve, refer in particular to a novel ball valve. The valve cap comprises an inner connecting section, an outer connecting section and a middle seat, wherein the inner connecting section is connected with the valve body, and the middle seat is positioned between the inner connecting section and the outer connecting section; outer linkage segment periphery is provided with the external screw thread, and the perpendicular line and the valve cap axis of the play tooth point to the valve rod axis of external screw thread initial tooth parallel, the valve pocket has been seted up to the valve body inboard, install in the valve pocket the valve ball has seted up the rivers passageway in the valve ball. The utility model discloses when setting up, the external screw thread initial tooth point to valve cap outer linkage section is fixed a position, guarantees that this tooth point of playing keeps parallel to the plumb line of valve rod axis and the axis of valve cap, and it is convenient to process, and installs the direction of control of being convenient for.

Description

Novel ball valve

Technical Field

The utility model belongs to the technical field of the valve, refer in particular to a novel ball valve.

Background

Ball valves are used primarily for interrupting or connecting the flow of a medium in a line, and also for regulating and controlling fluids, and they can be closed and opened only by an operation of 90 ° rotation and a small turning torque. The ball valve has the advantages of compact and simple structure and convenient maintenance, the sealing surface and the spherical surface of the ball valve are usually in a closed state, the ball valve is not easy to erode by media, and the ball valve is easy to operate and maintain, is suitable for common working media such as water, solvents, acid, natural gas and the like, is also suitable for media with severe working conditions such as oxygen, hydrogen peroxide, methane, ethylene and the like, and is widely applied to various industries.

The existing ball valve generally comprises a valve body and a valve ball arranged in the valve body, the valve ball is driven to rotate through a rotating part, so that the valve body is switched on and off, the valve body is connected to a water pipe connector through threads, and therefore, when the ball valve is installed, if threads are not specially aligned, or the thread pitch and the thread number are quantified, the ball valve is easily askew, and the switching direction cannot face the expected position.

Disclosure of Invention

The utility model aims at providing a simple structure, the novel ball valve of the control installation angle of being convenient for.

The purpose of the utility model is realized like this:

a novel ball valve comprises a valve body, wherein one side of the valve body is connected with a valve cap, a valve ball is arranged in the valve body in a rotating mode, the valve ball is connected with a valve rod capable of driving the valve ball to rotate, the valve cap comprises an inner connecting section, an outer connecting section and a middle seat, the inner connecting section is connected with the valve body, and the middle seat is located between the inner connecting section and the outer connecting section;

outer linkage segment periphery is provided with the external screw thread, and the perpendicular line and the valve cap axis of the play tooth point to the valve rod axis of external screw thread initial tooth parallel, the valve pocket has been seted up to the valve body inboard, install in the valve pocket the valve ball has seted up the rivers passageway in the valve ball.

The middle seat is further provided with a clamping part, a first sideline is arranged on the periphery of the clamping part, and the tooth starting point and the first sideline are located on the same straight line.

The valve ball is further provided with an insertion hole, a first cavity and a second cavity are arranged on the upper side and the lower side in the valve ball, and the lower end of the valve rod penetrates through the insertion hole and is located in the first cavity.

The valve body is further provided with a mounting hole for mounting the valve rod, the valve rod is provided with a first mounting groove, and a first filler is pressed between the first mounting groove and the inner wall of the mounting hole; the mounting hole upper end is provided with the second mounting groove, the pressure is equipped with the second and packs between valve rod periphery and the second mounting groove.

Further, one end, extending out of the mounting hole, of the valve rod is provided with a screw, and a pressing cap and a nut are connected to the screw in a threaded mode.

And a first sealing seat and a second sealing seat are respectively arranged between the valve ball and the inner wall of the valve body and between the valve ball and the inner wall of the inner connecting section, and the outer walls of the valve ball at the two end parts of the water flow channel are abutted against the first sealing seat and the second sealing seat.

The first sealing seat and the second sealing seat are O-shaped rings made of polytetrafluoroethylene materials.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses when setting up, the external screw thread initial tooth point to valve cap outer linkage segment is fixed a position, guarantees that this initial tooth point keeps being parallel to the plumb line of valve rod axis and the axis of valve cap for during the valve body installation, as long as play initial tooth point towards the target direction and insert water pipe head, can both guarantee that the valve body rotates the final direction of back valve rod and keep being the target direction, need not carry out the setting of screw thread number of teeth and pitch specially, and it is convenient to process, and the installation is convenient for direction of control.

2. The utility model discloses upper and lower both sides in the valve ball are provided with first cavity and second cavity, have saved the material of valve ball processing, and the valve rod lower extreme passes the jack simultaneously and is located first cavity for the valve rod can not contact the medium in the rivers passageway of flowing through, avoids suffering the corruption in long-time use, plays guard action, increase of service life to the valve rod.

3. The utility model discloses be provided with first seal receptacle and second seal receptacle between valve ball and valve body inner wall, the in-connection section inner wall respectively, the valve ball outer wall at rivers passageway both ends supports on first seal receptacle and second seal receptacle, and the valve ball is when rotatory, and the valve ball outer wall closely supports on first seal receptacle and the second seal receptacle, plays fine sealed effect, avoids the medium side leakage.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of fig. 1 at a.

Fig. 3 is a schematic cross-sectional view of the present invention.

Fig. 4 is an exploded view of the structure of the present invention.

In the figure: 1-a valve body; 11-a valve cavity; 12-mounting holes; 13-a second mounting groove; 2-valve cap; 20-bonnet axis; 21-an inner connecting segment; 22-an external connection section; 23-a middle seat; 24-a pick-up point; 25-a clamping part; 26-a first edge line; 27-external thread; 270-vertical line; 3-a valve ball; 31-a water flow channel; 32-a jack; 33-a first cavity; 34-a second cavity; 4-a valve stem; 41-a first mounting groove; 42-screw rod; 40-valve stem axis; 51-a first seal seat; 52-second seal seat; 61-a first filler; 62-a second filler; 7-pressing the cap; 8-nut.

Detailed Description

The invention will be further described in the following with reference to specific embodiments thereof, with reference to figures 1 to 4:

a novel ball valve comprises a valve body 1, wherein one side of the valve body 1 is connected with a valve cap 2, a valve ball 3 is rotationally arranged in the valve body 1, the valve ball 3 is connected with a valve rod 4 capable of driving the valve ball to rotate, the valve cap 2 comprises an inner connecting section 21, an outer connecting section 22 and a middle seat 23, the inner connecting section 21 is connected with the valve body 1, and the middle seat 23 is positioned between the inner connecting section 21 and the outer connecting section 22;

outer linkage segment 22 periphery is provided with external screw thread 27, and the first tooth of external screw thread 27 plays tooth point 24 and parallels with valve cap axis 20 to valve rod axis perpendicular 270, and valve pocket 11 has been seted up to valve body 1 inboard, install in the valve pocket 11 the valve ball 3 has seted up rivers passageway 31 in the valve ball 3. During the installation, if need install the orientation of valve rod to vertical direction, then can be located vertical direction and up come to aim at water pipe head with the tooth point 24 and insert, rotate and connect the chucking back, because the tooth point 24 is located vertical direction and up, just can guarantee this moment that the valve rod after installing is located vertical direction. When the ball valve is used, the valve rod 4 is rotated to drive the valve ball 3 to rotate, and when the opening of the water flow channel of the valve ball 3 turns to the joint of the valve body and the valve cap, the water outlet and the water inlet of the valve body are communicated, so that the ball valve can be opened.

The middle seat 23 is provided with a clamping part 25, the periphery of the clamping part 25 is provided with a first sideline 26, and the tooth starting point 24 and the first sideline 26 are positioned on the same straight line. Since the tooth starting point 24 is not searched every time in the installation process, the first side line is designed, and the alignment in the installation process is convenient. In the present embodiment, the clamping portion 25 is in a shape of a hexagon nut, and the first side line is a side line located right above.

The valve ball 3 is provided with an insertion hole 32, the upper side and the lower side in the valve ball 3 are provided with a first cavity 33 and a second cavity 34, the insertion hole is positioned above the first cavity, and the insertion hole is the only outlet of the first cavity; the second cavity is a sealed cavity, and the lower end of the valve rod 4 passes through the insertion hole 32 and is positioned in the first cavity 33. The material of valve ball processing has been saved in setting up of first cavity and second cavity, and the valve rod lower extreme passes the jack simultaneously and is located first cavity for the valve rod can not contact the medium in the rivers passageway of flowing through, avoids suffering the corruption in long-time use, plays guard action, increase of service life to the valve rod.

The valve body 1 is provided with a mounting hole 12 for mounting the valve rod 4, the valve rod 4 is provided with a first mounting groove 41, and a first filler 61 is pressed between the first mounting groove 41 and the inner wall of the mounting hole 12; the upper end of the mounting hole 12 is provided with a second mounting groove 13, and a second packing 62 is pressed between the periphery of the valve rod 4 and the second mounting groove 13. The packing can be made of polytetrafluoroethylene, graphite, asbestos packing or a combination of polytetrafluoroethylene, graphite and asbestos packing, has good sealing performance, prevents water flow from flowing out from a gap between the valve rod 4 and the valve body 1 when the valve rod rotates, and causes leakage, or prevents dust and impurities in the air from entering the interior of the valve body, so that the valve ball is clamped when rotating and the like.

One end of the valve rod 4 extending out of the mounting hole 12 is a screw rod 42, and a pressing cap 7 and a nut 8 are connected to the screw rod 42 in a threaded manner; the lower end surface of the pressing cap 7 is pressed on the upper end surface of the second filler 62, so that the firmness of fixing the second filler in installation can be enhanced.

A first sealing seat 51 and a second sealing seat 52 are respectively arranged between the valve ball 3 and the inner wall of the valve body 1 and between the valve ball 3 and the inner wall of the inner connecting section 21, and the outer walls of the valve ball 3 at the two ends of the water flow channel 31 are abutted against the first sealing seat 51 and the second sealing seat 52. Specifically, the inner wall of one side of the valve body 1 protrudes inwards to form a first annular step 14, and a first sealing seat 51 is installed on the inner side of the first annular step 14; a second annular step 28 is formed by the inward protrusion of the inner wall of one side of the bonnet 2, and a second sealing seat 52 is installed inside the second annular step 28; the valve ball 3 is located between the first sealing seat 51 and the second sealing seat 52, and the outer wall of the valve ball 3 is tightly attached to the first sealing seat 51 and the second sealing seat 52, so that in a closed state, the outer wall of the valve ball can be blocked at the water inlet and the water outlet, water flow is prevented from passing through, and the sealing performance of the structure is enhanced.

The first sealing seat 51 and the second sealing seat 52 are O-rings made of teflon. The polytetrafluoroethylene material coefficient of friction is little, because the rotation of ball valve regularity, the design of seal receptacle can avoid the ball valve to produce the rolling resistance because frictional force is big at the rotation in-process, also can avoid the ball valve outer wall to produce wearing and tearing because of the friction, has prolonged the life of ball valve.

The utility model discloses a theory of operation:

be connected with the valve rod on the valve ball, rotating device can be connected through the screw rod that is located the upper end to the valve rod to rotate under rotating device's drive, the valve ball rotates thereupon, is provided with a passageway in the valve ball, when rotating device forward rotation 1/4 circle (90 °), the valve is turn-offed, when rotating device reverse rotation 1/4 circle (90 °), the valve is opened, thereby makes through the rivers passageway, realizes the switching of this ball valve through rotating the valve ball.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel ball valve, includes valve body (1), and valve body (1) one side is connected with valve cap (2), and valve body (1) internal rotation is provided with valve ball (3), is connected with on valve ball (3) and can drives its pivoted valve rod (4), its characterized in that: the valve cap (2) comprises an inner connecting section (21), an outer connecting section (22) and a middle seat (23), the inner connecting section (21) is connected with the valve body (1), and the middle seat (23) is positioned between the inner connecting section (21) and the outer connecting section (22);

outer linkage segment (22) periphery is provided with the external screw thread, and the perpendicular line (270) and valve cap axis (20) parallel of the first tooth point of external screw thread (24) to valve rod axis (40), and valve pocket (11) have been seted up to valve body (1) inboard, install in valve pocket (11) valve ball (3), seted up rivers passageway (31) in valve ball (3).

2. The new ball valve of claim 1, wherein: the middle seat (23) is provided with a clamping part (25), a first sideline (26) is arranged on the periphery of the clamping part (25), and the tooth starting point (24) and the first sideline (26) are located on the same straight line.

3. The new ball valve of claim 1, wherein: the valve ball (3) is provided with an insertion hole (32), a first cavity (33) and a second cavity (34) are arranged on the upper side and the lower side in the valve ball (3), and the lower end of the valve rod (4) penetrates through the insertion hole (32) and is located in the first cavity (33).

4. A new ball valve according to any one of claims 1 to 3, characterized in that: the valve body (1) is provided with a mounting hole (12) for mounting the valve rod (4), the valve rod (4) is provided with a first mounting groove (41), and a first filler (61) is pressed between the first mounting groove (41) and the inner wall of the mounting hole (12); the upper end of the mounting hole (12) is provided with a second mounting groove (13), and a second filler (62) is pressed between the periphery of the valve rod (4) and the second mounting groove (13).

5. The new ball valve of claim 4, wherein: one end of the valve rod (4) extending out of the mounting hole (12) is a screw rod (42), and a pressing cap (7) and a nut (8) are connected to the screw rod (42) in a threaded mode.

6. A new ball valve according to any one of claims 1 to 3, characterized in that: a first sealing seat (51) and a second sealing seat (52) are respectively arranged between the valve ball (3) and the inner wall of the valve body (1) and between the valve ball (3) and the inner wall of the inner connecting section (21), and the outer walls of the valve ball (3) at the two end parts of the water flow channel (31) are abutted against the first sealing seat (51) and the second sealing seat (52).

7. The new ball valve of claim 6, wherein: the first sealing seat (51) and the second sealing seat (52) are O-rings made of polytetrafluoroethylene materials.