阅读说明：本技术 一种防泄漏直管法兰球阀 (Prevent leaking straight tube flange ball valve ) 是由 张胜君 童萍 于 2019-11-11 设计创作，主要内容包括：本发明公开了一种防泄漏直管法兰球阀,包括阀体,所述阀体两端包括流入口和流出口,流入口和流出口间连通有流道,流道间设有阀腔,阀腔内设有用于启闭的阀球体,阀球体顶端一体设有阀杆,阀杆与连接本体固定连接,连接本体与把手可拆卸式连接。本发明通过阀球体可对流道内的液体进行开关,同时可起到防漏效果,通过连接本体的设置可实现阀杆与把手的可拆卸,便于把手的更换；密封垫的设置提高了密封性,进而提高防泄露效果。(The invention discloses a leakage-proof straight pipe flange ball valve which comprises a valve body, wherein two ends of the valve body comprise an inflow port and an outflow port, a flow passage is communicated between the inflow port and the outflow port, a valve cavity is arranged between the flow passages, a valve ball body used for opening and closing is arranged in the valve cavity, a valve rod is integrally arranged at the top end of the valve ball body, the valve rod is fixedly connected with a connecting body, and the connecting body is detachably connected with a handle. The valve body can be used for opening and closing the liquid in the flow channel, the leakage-proof effect can be achieved, the valve rod and the handle can be detached through the arrangement of the connecting body, and the handle is convenient to replace; the sealing performance is improved by arranging the sealing gasket, and then the anti-leakage effect is improved.)

1. A leakproof straight pipe flange ball valve comprises a valve body (1) and is characterized in that two ends of the valve body (1) comprise an inflow port (2) and an outflow port (3), a flow passage (4) is communicated between the inflow port (2) and the outflow port (3), a valve cavity (5) is arranged between the flow passages (4), a valve ball body (6) used for opening and closing is arranged in the valve cavity (5), a valve rod (7) is integrally arranged at the top end of the valve ball body (6), the valve rod (7) is fixedly connected with a connecting body (8), and the connecting body (8) is detachably connected with a handle (9);

the upper part of the connecting body (8) is provided with a slot opening (12), the bottom end of the slot opening (12) is provided with a clamping groove (13), the bottom end of the handle (9) is connected with a clamping column (14), the clamping column (14) is clamped with the clamping groove (13), the connecting body (8) is provided with a first reserved screw hole (15), the handle (9) is provided with a second reserved screw hole (16), and the connecting body (8) and the handle (9) are fixed through a bolt (17) by the first reserved screw hole (15) and the second reserved screw hole (16);

the handle (9) bilateral symmetry is equipped with clamp plate (18), and connecting body (8) bilateral symmetry is equipped with fixed establishment (19), and fixed establishment (19) and clamp plate (18) cooperation set up.

2. A leak-proof straight-tube flange ball valve according to claim 1, characterized in that said valve stem (7) is connected to the valve body (1) by means of a bearing (10).

3. A leak-proof straight-tube flanged ball valve according to claim 1, characterized in that a gasket (11) is provided at the contact between the bottom of the connecting body (8) and the top of the valve body (1).

4. The leak-proof straight pipe flange ball valve according to claim 1, wherein the fixing mechanism (19) comprises a fixing box (1901) and a pressure lever (1902), the bottom of the pressure lever (1902) is symmetrically hinged with a connecting rod (1903), the bottom end of the connecting rod (1903) is hinged with a movable frame (1904), the movable frame (1904) is composed of a cross rod (1904a) and a vertical rod (1904b), the vertical rod (1904b) is provided with a clamping column (1907), the clamping column (1907) and the clamping mechanism (20) are clamped, the vertical rod (1904b) is connected with the inner wall of the fixing box (1901) through a buffer spring (1908), the inner bottom wall of the fixing box (1901) is provided with a buffer protection mechanism (21), and the buffer protection mechanism (21) is matched with the pressure lever (1902).

5. A leak-proof straight pipe flange ball valve according to claim 4, characterized in that the top wall of the fixed box (1901) is symmetrically provided with mounting rods (22), two mounting rods (22) are connected with a loop bar (23) together, a loop block (24) is sleeved on the loop bar (23), and the bottom end of the loop block (24) is connected with the vertical rod (1904 b).

6. A leak-proof straight pipe flange ball valve according to claim 4, characterized in that the bottom end of said cross bar (1904a) is connected with a vertical block (1905), the inner bottom wall of the fixed box (1901) is provided with a sliding groove (1906), and the vertical block (1905) and the sliding groove (1906) are slidably arranged.

7. A leak-proof straight pipe flange ball valve according to claim 1, characterized in that said clamping mechanism (20) comprises a cavity, the cavity is arranged in the inner wall of the fixed box (1901), a double-shaft motor (2001) is arranged in the cavity, a screw (2002) is connected to the output shaft of the double-shaft motor (2001), the top end of the screw (2002) is connected with the cavity through a bearing seat, a screw block (2003) is connected to the screw (2002) in a threaded manner, the screw block (2003) is connected with the clamping rod (2004), and the two clamping rods (2004) clamp the clamping column (1907) together.

8. A leak-proof straight pipe flange ball valve according to claim 7, characterized in that a positioning groove (2005) is further provided in said cavity, a positioning rod (2006) is slidably provided in said positioning groove (2005), and said positioning rod (2006) is connected to a screw block (2003).

9. A leak-proof straight-tube flanged ball valve according to claim 1, wherein said buffer protection mechanism (21) comprises a buffer protection sleeve (2101), a buffer protection post (2102) is slidably disposed in the buffer protection sleeve (2101), and the bottom end of the buffer protection post (2102) is connected to the inner top wall of the buffer protection sleeve (2101) by a buffer protection spring (2103).

10. A leak-proof straight pipe flange ball valve as claimed in claim 9, wherein said buffer protective sleeve (2101) is symmetrically provided with a limiting groove (2104) at both sides, and a limiting block (2105) is slidably disposed in the limiting groove (2104).

Technical Field

The invention relates to the technical field of ball valves, in particular to a leakage-proof straight pipe flange ball valve.

Background

The ball valve is a valve using a valve ball body as an opening and closing part, and the opening and closing part with a through hole is driven by a valve rod to rotate around the axis of the ball valve so as to realize the regulation and control of fluid. In China, the ball valve is widely applied to industries such as petroleum refining, long-distance pipelines, chemical industry, papermaking, pharmacy, water conservancy, electric power, municipal administration, steel and the like, and plays a significant role in national economy. It has the action of rotating 90 degrees, the cock body is a sphere, and a circular through hole or a channel passes through the axis of the cock body.

Although current ball valve can play and prevent revealing the effect to liquid, nevertheless need often rotate the handle and come the opening and shutting of control flap, and integrative welding sets up between handle and valve rod, and the handle damages, need change the ball valve together, has improved replacement cost.

Chinese patent document publication no: CN209245440U discloses a leakage-proof straight pipe flange ball valve, which comprises a limiting lantern ring, a sealing gasket, a guide rod, a first wedge block, a second wedge block, a cavity, a support rod, an accommodating groove, a positioning bolt and a positioning groove, wherein the limiting lantern ring is arranged on the side surface of a valve sleeve; the handle and the valve rod provided in this document are integrally provided, and have no disassembling effect, thereby increasing the replacement cost.

Disclosure of Invention

The invention aims to provide a leakage-proof straight pipe flange ball valve to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a leakproof straight pipe flange ball valve comprises a valve body, wherein two ends of the valve body comprise an inflow port and an outflow port, a flow passage is communicated between the inflow port and the outflow port, a valve cavity is arranged between the flow passages, a valve ball body for opening and closing is arranged in the valve cavity, a valve rod is integrally arranged at the top end of the valve ball body, the valve rod is fixedly connected with a connecting body, and the connecting body is detachably connected with a handle;

the upper part of the connecting body is provided with an inserting groove opening, the bottom end of the inserting groove opening is provided with a clamping groove, the bottom end of the handle is connected with a clamping column, the clamping column is clamped with the clamping groove, a first reserved screw hole is formed in the connecting body, a second reserved screw hole is formed in the handle, and the connecting body and the handle are fixed through bolts by the first reserved screw hole and the second reserved screw hole;

the handle bilateral symmetry is equipped with the clamp plate, connects the body bilateral symmetry and is equipped with fixed establishment, and fixed establishment sets up with the clamp plate cooperation.

Preferably, the valve rod is connected with the valve body through a bearing.

Preferably, a sealing gasket is arranged at the contact position of the bottom of the connecting body and the top of the valve body.

Preferably, fixed establishment includes fixed case and depression bar, and the depression bar bottom symmetry articulates there is the connecting rod, and the connecting rod bottom articulates there is the removal frame, removes the frame and comprises horizontal pole and montant, be equipped with on the montant and press from both sides tight post, press from both sides tight post and the tight setting of clamping mechanism clamp, the montant passes through buffer spring and fixed incasement wall connection, the bottom wall is equipped with buffer protection mechanism in the fixed case, and buffer protection mechanism sets up with the depression bar cooperation.

Preferably, roof symmetry is equipped with the installation pole in the fixed incasement, and two installation poles connect the loop bar jointly, and the cover is equipped with the nested piece on the loop bar, and the nested piece bottom is connected with the montant.

Preferably, the bottom end of the cross rod is connected with a vertical block, a sliding groove is formed in the bottom wall of the fixed box, and the vertical block and the sliding groove are arranged in a sliding mode.

Preferably, clamping mechanism includes the cavity, and the cavity sets up for fixed incasement wall, is equipped with the double-shaft motor in the cavity, and double-shaft motor output shaft has the screw rod, and the screw rod top is connected with the cavity through the bearing frame, and threaded connection has the spiral shell piece on the screw rod, and the spiral shell piece is connected with the clamp rod, and two clamp rods press from both sides tight post jointly.

Preferably, a positioning groove is further formed in the cavity, a positioning rod is slidably arranged in the positioning groove, and the positioning rod is connected with the screw block.

Preferably, the buffering protection mechanism comprises a buffering protection sleeve, a buffering protection column is slidably arranged in the buffering protection sleeve, and the bottom end of the buffering protection column is connected with the inner top wall of the buffering protection sleeve through a buffering protection spring.

Preferably, the buffering protection sleeve bilateral symmetry is equipped with the spacing groove, and spacing slip is equipped with the stopper in the spacing groove.

Compared with the prior art, the invention has the beneficial effects that:

(1) the liquid in the flow channel can be switched on and off through the valve ball body, a leakage-proof effect can be achieved, the valve rod and the handle can be detached through the arrangement of the connecting body, and the handle is convenient to replace; the sealing performance is improved by arranging the sealing gasket, and then the anti-leakage effect is improved.

(2) When the handle is installed, the pressing plate presses the pressing rod, the connecting rod drives the movable frame to move, the buffer spring is compressed, and then the clamping column is locked by the clamping mechanism, so that the connecting body and the handle are further fixed; the double-shaft motor is started, the screw rod rotates, so that the screw block is driven to move on the screw rod, and then the clamping rod is enabled to clamp the clamping column.

(3) The compression bar moves downwards to extrude the buffering protection column, so that the buffering protection spring is compressed, the buffering effect of the structure is realized, and the protection effect on the device structure is realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connecting and mounting structure of the valve rod and the connecting body according to the present invention;

FIG. 3 is a schematic view of the connecting body structure of the present invention;

FIG. 4 is a schematic structural view of a fixing mechanism according to the present invention;

FIG. 5 is a schematic view of the clamping mechanism of the present invention;

fig. 6 is a schematic structural diagram of the buffering protection mechanism of the present invention.

In the figure: 1. a valve body; 2. an inflow port; 3. an outflow port; 4. a flow channel; 5. a valve cavity; 6. a valve ball body; 7. a valve stem; 8. a connecting body; 9. a handle; 10. a bearing; 11. a gasket; 12. a slot opening; 13. a card slot; 14. clamping the column; 15. a first reserved screw hole; 16. a second reserved screw hole; 17. a bolt; 18. pressing a plate; 19. a fixing mechanism; 1901. a fixed box; 1902. a pressure lever; 1903. a connecting rod; 1904. a movable frame; 1904a, cross bar; 1904b, vertical bar; 1905. a vertical block; 1906. a sliding groove; 1907. clamping the column; 1908. a buffer spring; 20. a clamping mechanism; 2001. a double-shaft motor; 2002. a screw; 2003. a screw block; 2004. a clamping lever; 2005. positioning a groove; 2006. positioning a rod; 21. a buffer protection mechanism; 2101. a buffer protection sleeve; 2102. a buffer protection column; 2103. a buffer protection spring; 2104. a limiting groove; 2105. a limiting block; 22. mounting a rod; 23. a loop bar; 24. and (5) sleeving blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the invention provides a leakage-proof straight pipe flange ball valve, which comprises a valve body 1, wherein two ends of the valve body 1 comprise an inflow port 2 and an outflow port 3, a flow passage 4 is communicated between the inflow port 2 and the outflow port 3, a valve cavity 5 is arranged between the flow passages 4, a valve ball body 6 for opening and closing is arranged in the valve cavity 5, a valve rod 7 is integrally arranged at the top end of the valve ball body 6, the valve rod 7 is fixedly connected with a connecting body 8, and the connecting body 8 is detachably connected with a handle 9; the liquid in the flow passage 4 can be opened and closed through the valve ball body 6, a leakage-proof effect can be achieved, the valve rod 7 and the handle 9 can be detached through the connecting body 8, and the handle 9 can be replaced conveniently;

the upper part of the connecting body 8 is provided with an inserting groove opening 12, the bottom end of the inserting groove opening 12 is provided with a clamping groove 13, the bottom end of the handle 9 is connected with a clamping column 14, the clamping column 14 is clamped with the clamping groove 13, the connecting body 8 is provided with a first reserved screw hole 15, the handle 9 is provided with a second reserved screw hole 16, and the connecting body 8 and the handle 9 are fixed through a bolt 17 by the first reserved screw hole 15 and the second reserved screw hole 16; the bottom of the handle 9 is inserted into the slot opening 12, the clamping column 14 is clamped with the clamping slot 13 firstly, so that the handle 9 is preliminarily fixed, and then the connecting body 8 and the handle 9 are further fixed through the bolt 17;

the handle 9 bilateral symmetry is equipped with clamp plate 18, and the connection body 8 bilateral symmetry is equipped with fixed establishment 19, and fixed establishment 19 sets up with clamp plate 18 cooperation.

The valve rod 7 of the embodiment is connected with the valve body 1 through the bearing 10, so that the rotating effect between the valve rod 7 and the valve body 1 is improved.

In the embodiment, the sealing gasket 11 is arranged at the contact part of the bottom of the connecting body 8 and the top of the valve body 1, so that the sealing property is improved, and the anti-leakage effect is further improved;

referring to fig. 4, the fixing mechanism 19 of the present embodiment includes a fixing box 1901 and a pressure rod 1902, the bottom of the pressure rod 1902 is symmetrically hinged with a connecting rod 1903, the bottom end of the connecting rod 1903 is hinged with a moving rack 1904, the moving rack 1904 is composed of a cross rod 1904a and a vertical rod 1904b, the vertical rod 1904b is provided with a clamping column 1907, the clamping column 1907 is clamped with a clamping mechanism 20, the vertical rod 1904b is connected with the inner wall of the fixing box 1901 through a buffer spring 1908, the inner bottom wall of the fixing box 1901 is provided with a buffer protection mechanism 21, and the buffer protection mechanism 21 is matched with the pressure rod; when the handle 9 is installed, the pressing rod 1902 is pressed by the pressing plate 18, the moving frame 1904 is driven by the connecting rod 1903 to move, the buffer spring 1908 is compressed, and then the clamping column 1907 is locked by the clamping mechanism 20, so that the connection body 8 and the handle 9 are further fixed.

Roof symmetry is equipped with installation pole 22 in the fixed box 1901 of this embodiment, and two installation poles 22 connect loop bar 23 jointly, and the cover is equipped with a loop bar 24 on the loop bar 23, and the 24 bottom of loop bar is connected with montant 1904b, and the cooperation setting of loop bar 24 and loop bar 23 has improved the stability of removal frame 1904.

The bottom end of the cross bar 1904a of this embodiment is connected with a vertical block 1905, the inner bottom wall of the fixed box 1901 is provided with a sliding groove 1906, the vertical block 1905 and the sliding groove 1906 are arranged in a sliding manner, so that the movement stability of the cross bar 1904a is improved, and further the stability of the movable frame 1904 is improved;

referring to fig. 5, the clamping mechanism 20 of the present embodiment includes a cavity, the cavity is formed by an inner wall of a fixing box 1901, a dual-axis motor 2001 is disposed in the cavity, an output shaft of the dual-axis motor 2001 is connected with a screw 2002, a top end of the screw 2002 is connected with the cavity through a bearing seat, a screw block 2003 is connected to the screw 2002 in a threaded manner, the screw block 2003 is connected with a clamping rod 2004, two clamping rods 2004 clamp a clamping column 1907 together, the dual-axis motor 2001 is started, the screw 2002 is rotated, and thus the screw block 2003 is driven to move on the screw rod 2002, and the clamping rod 2004 clamps the clamping column.

A positioning groove 2005 is further arranged in the cavity of the embodiment, a positioning rod 2006 is arranged in the positioning groove 2005 in a sliding mode, and the positioning rod 2006 is connected with a screw block 2003.

Referring to fig. 6, the buffering protection mechanism 21 of this embodiment includes a buffering protection sleeve 2101, a buffering protection post 2102 is slidably disposed in the buffering protection sleeve 2101, and a bottom end of the buffering protection post 2102 is connected to an inner top wall of the buffering protection sleeve 2101 by a buffering protection spring 2103; the compression bar 1902 moves downwards to extrude the buffering protection post 2102, so that the buffering protection spring 2103 is compressed, the buffering effect of the structure is realized, and the protection effect on the device structure is realized.

The buffering protective sleeve 2101 bilateral symmetry of this embodiment is equipped with spacing groove 2104, and spacing slip is equipped with stopper 2105 in the spacing groove 2104, and is spacing to buffering protection post 2102, avoids breaking away from buffering protective sleeve 2101.

The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.