Titanium material hard sealing ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a titanium material hard sealing ball valve which comprises a ball valve body, connecting pipe fittings are detachably connected to the two ends of the ball valve body, each connecting pipe fitting comprises a first straight pipe, a second straight pipe and inclined pipes, filtering devices are arranged on the surfaces of the two inclined pipes, and seat grooves are formed in the two sides of the inner wall of the ball valve body. The inner walls of the two seat grooves are annularly provided with valve seats, the valve seats are made of metal materials, the two ends of the ball body make contact with the surfaces of the two valve seats in a one-to-one correspondence mode, a sleeve is arranged at the upper end of the middle of the ball valve body, a valve rod is arranged at the upper end of the ball body, the upper end of the valve rod extends out of the sleeve, and a protection assembly is arranged on the upper end face of the sleeve. The valve seat is made of metal materials and is not prone to abrasion and aging, and the valve seat can be replaced by detaching the connecting pipe fitting from the ball valve body.

Description

TECHNICAL FIELD

[0001] The utility model relates to ball valve technical field especially relates to a titanium material hard sealing ball valve. BACKGROUND

[0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the ball valve axis. Ball valve appeared in the 1950s, with the rapid development of science and technology, the continuous improvement of production process and product structure, in the short 40 years, has rapidly developed into a major valve.

[0003] For example, the authorized announcement number "CN214197377U" is named a hard sealing ball valve, adopts the sealing protection structure of sleeve connection, when using, the protective sleeve column mainly wraps the ball in the inside, and separates the ball and the valve body, when the handle controls the valve stem rotation and makes the ball rotate, the ball mainly rotates between the protective sleeve column, and the silica gel layer of the outer end of the protective sleeve column also plays the effect of shock absorption and wear resistance, reduces the wear and tear of the valve body shell, and the sealing rubber plug on both sides of the ball not only plays partial sealing, but also prevents the wear and tear of the ball to the valve body inner shell, the comprehensive setting of this structure not only improves the wear resistance of the hard sealing ball valve, but also improves the durability of the hard sealing ball valve. However, the protective rubber pad and the sealing rubber plug are easy to wear and age, which causes the ball to be not tightly sealed, and the protective rubber pad and the sealing rubber plug are arranged in the inside of the valve body, which is not easy to replace; when replacing the mesh, the valve body can only be disassembled as a whole to replace it. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the shortcomings in the prior art and provides a titanium material hard sealing ball valve.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A titanium material hard sealing ball valve is designed, which comprises a ball valve body, a connecting pipe is detachably connected to both ends of the ball valve body, the connecting pipe comprises a first straight pipe, a second straight pipe and an inclined pipe, filter devices are arranged on the surfaces of the two inclined pipes, a ball cavity is arranged in the middle of the inner wall of the ball valve body, a ball is arranged in the ball cavity, seat grooves are arranged on both sides of the inner wall of the ball valve body, valve seats are annularly arranged on the inner walls of the two seat grooves, the valve seats are made of metal, the two ends of the ball correspond to the surfaces of the two valve seats, a sleeve is arranged at the upper end of the middle of the ball valve body, a valve rod is arranged at the upper end of the ball, the valve rod extends out of the sleeve, and a protection assembly is arranged on the upper end face of the sleeve.

[0007] Preferably, the filtering device comprises an additional block integrally arranged at the lower end of the inclined pipe, an additional cavity is arranged in the additional block, the additional cavity is communicated with the inclined pipe, a filter screen is arranged in the additional cavity, and a plug is threadedly connected to the lower end of the additional cavity.

[0008] Preferably, the ball valve body is annularly provided with first flanges at both ends, the two first straight pipes are annularly provided with second flanges at one end close to the ball valve body, a plurality of first bolts are arranged at the side of each of the two first flanges, and one end of each of the first bolts is slidably penetrated through the first flange and the second flange and is threadedly connected with a first nut.

[0009] Preferably, the protection assembly comprises a protection cap, a plurality of second bolts are arranged above the protection cap, and the lower end of each of the second bolts is penetrated through the protection cap and the sleeve and is threadedly connected with a second nut.

[0010] Preferably, the upper end of the valve rod is provided with a rotating block, and the rotating block has a regular hexagonal cross section.

[0011] Preferably, the two second straight pipes are annularly provided with third flanges at opposite ends, and a plurality of flange holes are arranged on the surface of each of the third flanges.

[0012] The titanium hard sealing ball valve has the advantages that: the valve seat is made of metal material and is not easy to wear and age, the ball body is not prone to loose sealing, the valve seat can be replaced by dismounting the connecting pipe from the ball valve body, the ball valve is convenient to replace the valve seat, and the filtering device is arranged and the filter screen can be conveniently replaced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural sectional view of the utility model;

[0014] Figure 2 It is a structural schematic view of the connection relationship among the ball body, the valve rod and the rotating block of the utility model;

[0015] Figure 3 It is an enlarged view of position A of the utility model;

[0016] Figure 4 It is an enlarged view of position B of the utility model.

[0017] In the figure: ball valve body 1, connecting pipe 2, first straight pipe 3, second straight pipe 4, inclined pipe 5, ball cavity 6, ball 7, seat groove 8, valve seat 9, sleeve 10, valve stem 11, additional block 12, additional cavity 13, filter screen 14, plug 15, first flange 16, second flange 17, first bolt 18, first nut 19, protective cap 20, second bolt 21, second nut 22, rotating block 23, third flange 24, flange hole 25. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0019] Reference Figures 1-4 A titanium hard sealing ball valve, comprising a ball valve body 1, the ball valve body 1 is detachably connected with connecting pipe 2 at both ends, the connecting pipe 2 comprises a first straight pipe 3, a second straight pipe 4 and an inclined pipe 5, the two inclined pipes 5 are both provided with a filter device on the surface, the ball valve body 1 is provided with a ball cavity 6 in the middle of the inner wall, the ball cavity 6 is provided with a ball 7 inside, the ball valve body 1 is provided with a seat groove 8 on both sides of the inner wall, the two seat grooves 8 are both annularly provided with a valve seat 9 on the inner wall, the valve seat 9 is made of metal material, the valve seat 9 made of metal material is not easy to wear and age, and will not cause the ball 7 to be not tightly sealed, and by detaching the connecting pipe 2 from the ball valve body 1, the valve seat 9 can be replaced, so that the ball valve is convenient to replace the valve seat 9. The ball 7 is in one-to-one correspondence with the surfaces of the two valve seats 9 at both ends, the ball valve body 1 is provided with a sleeve 10 at the upper end in the middle, the ball 7 is provided with a valve stem 11 at the upper end, the valve stem 11 extends out of the sleeve 10 at the upper end, and the sleeve 10 is provided with a protective assembly on the upper end face. The ball valve body 1, the ball 7, the valve seat 9 and the valve stem 11 are all made of titanium material.

[0020] The filter device comprises an additional block 12, the additional block 12 is integrally formed at the lower end of the inclined pipe 5, the additional block 12 is provided with an additional cavity 13 inside, the additional cavity 13 is communicated with the inclined pipe 5, the additional cavity 13 is provided with a filter screen 14 inside, and the additional cavity 13 is threadedly connected with a plug 15 at the lower end. The filter device is provided, when the filter screen 14 is replaced, the valve at the front end of the ball valve is only needed to be closed, then the plug 15 is loosened and removed, and then the filter screen 14 can be taken down, which is very convenient.

[0021] The ball valve body 1 is annularly provided with a first flange 16 at both ends, the two first straight pipes 3 are both annularly provided with a second flange 17 close to one end of the ball valve body 1, a plurality of first bolts 18 are provided on both sides of the two first flanges 16, one end of the first bolt 18 is slidably penetrated through the first flange 16 and the second flange 17 and is threadedly connected with a first nut 19. By rotating the first bolt 18, the first nut 19 is taken off from the first bolt 18, the first straight pipe 3 can be detached, and then the valve seat 9 can be replaced.

[0022] The protection assembly comprises a protection cap 20, a plurality of second bolts 21 are arranged above the protection cap 20, lower ends of the plurality of second bolts 21 are all threaded through the protection cap 20 and the sleeve 10 and are threadedly connected with second nuts 22. When it is required to lock or open the ball valve for a long time, the protection cap 20 can be fixed by being threadedly connected with the second bolts 21 and the second nuts 22, the protection cap 20 plays a protection role and avoids misoperation of non-professionals.

[0023] The upper end of the valve stem 11 is provided with a rotating block 23, and the cross section of the rotating block 23 is a regular hexagon. The rotating block 23 can be operated by using an internal hexagonal wrench.

[0024] The two second straight pipes 4 are both annularly provided with third flanges 24 at opposite ends, and the surfaces of the two third flanges 24 are both provided with a plurality of flange holes 25. The third flanges 24 are arranged to facilitate connection with pipelines.

[0025] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A titanium hard-seal ball valve comprising a ball valve body (1), characterized in that, The detachable connecting pipe fittings (2) are connected to both ends of the ball valve body (1), the connecting pipe fittings (2) comprise a first straight pipe (3), a second straight pipe (4) and an inclined pipe (5), the surfaces of the two inclined pipes (5) are provided with filter devices, a ball cavity (6) is arranged in the middle of the inner wall of the ball valve body (1), a ball (7) is arranged in the ball cavity (6), seat grooves (8) are arranged on both sides of the inner wall of the ball valve body (1), valve seats (9) are annularly arranged on the inner walls of the two seat grooves (8), the valve seats (9) are made of metal, the two ends of the ball (7) correspondingly contact the surfaces of the two valve seats (9), a sleeve (10) is arranged on the upper middle of the ball valve body (1), a valve rod (11) is arranged on the upper end of the ball (7), the upper end of the valve rod (11) extends out of the sleeve (10), and a protection assembly is arranged on the upper end face of the sleeve (10).

2. The titanium hard-seated ball valve as defined in claim 1, wherein, The filter device comprises an additional block (12), the additional block (12) is integrally arranged at the lower end of the inclined pipe (5), an additional cavity (13) is arranged in the additional block (12), the additional cavity (13) is communicated with the inclined pipe (5), a filter screen (14) is arranged in the additional cavity (13), and a plug (15) is threadedly connected to the lower end of the additional cavity (13).

3. The titanium hard-seated ball valve as defined in claim 1, wherein, First flanges (16) are annularly arranged on both ends of the ball valve body (1), second flanges (17) are annularly arranged on the ends of the two first straight pipes (3) close to the ball valve body (1), a plurality of first bolts (18) are arranged on the sides of the two first flanges (16), one end of the first bolt (18) is slid through the first flange (16) and the second flange (17) and is threadedly connected with a first nut (19).

4. The titanium hard-seated ball valve as defined in claim 1, wherein, The protection assembly comprises a protection cap (20), a plurality of second bolts (21) are arranged above the protection cap (20), and the lower ends of the plurality of second bolts (21) penetrate the protection cap (20) and the sleeve (10) and are threadedly connected with second nuts (22).

5. The titanium hard-seated ball valve as defined in claim 1, wherein, The upper end of the valve rod (11) is provided with a rotating block (23), and the cross section of the rotating block (23) is a regular hexagon.

6. The titanium hard-seated ball valve as defined in claim 1, wherein, Third flanges (24) are annularly arranged on the opposite ends of the two second straight pipes (4), and a plurality of flange holes (25) are arranged on the surfaces of the two third flanges (24).

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