Ball valve facilitating filler replacement

Abstract

The utility model relates to the technical field of ball valves, and provides a ball valve facilitating filler replacement, which comprises a ball valve base, a cover body arranged at the top of the ball valve base, and a positioning seat fixedly mounted at the top of the cover body. A sealing gasket is arranged in an inner cavity of the ball valve base, a positioning sleeve is arranged at the bottom of the sealing gasket, a filler body is arranged at the bottom of the positioning sleeve, a valve body is arranged at the bottom of the filler body, a valve rod movably penetrates through the sealing gasket, the filler body, the positioning sleeve and a positioning seat together, a handle is installed at the top end of the valve rod, and the bottom end of the valve rod is fixedly connected with the valve body. Through mutual cooperation of a T-shaped rod, a reset spring, a sliding plate, a cross rod, a push block, a telescopic rod, a fixing plate, a telescopic spring and an arc-shaped block, the push block can push the arc-shaped block to move to an inner cavity of a groove under connection of the cross rod, a cover body can be conveniently taken down from a ball valve base, and therefore the filler body can be conveniently replaced; and the replacement strength of the filler body by workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve which is convenient for replacing packing. Background Art

[0002] Ball valve is a valve in which the ball is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between the V-shaped ball core and the metal valve seat with hard alloy surfacing, which is particularly suitable for media containing fibers, tiny solid particles, etc.

[0003] For example, application number: CN202223044574.8, a ball valve that is easy to replace packing, its technical solution includes: a ball valve base, a positioning sleeve fixedly installed in the ball valve base, a circular array of holes on the upper side of the outer wall of the ball valve base and movably installed with mounting screws, the rear end of the mounting screws passes through the ball valve base and is fixedly connected to the positioning sleeve, a cover body is threadedly installed on the top of the ball valve base, a ball is movably installed in the ball valve base below the positioning sleeve, and a packing body is movably installed in the ball valve base above the positioning sleeve. The utility model solves the problem of inconvenient packing replacement in a ball valve.

[0004] When the existing ball valve is in use, the cover body is installed on the ball valve mounting seat through threads. When the packing needs to be replaced, the staff needs to use external tools to rotate and remove the cover body, and the connecting threads are easily rusted when in contact with moisture or air, which hinders the staff from disassembling the cover body and reduces the efficiency of packing replacement.

[0005] In view of this, the utility model provides a ball valve which is convenient for replacing packing. Utility Model Content

[0006] The utility model provides a ball valve which is convenient for replacing packing and solves related technical problems.

[0007] The technical scheme of the utility model is as follows: a ball valve which is easy to replace packing, comprises a ball valve base, a cover body is arranged on the top of the ball valve base, a positioning seat is fixedly installed on the top of the cover body, a sealing gasket is arranged in the inner cavity of the ball valve base, a positioning sleeve is arranged at the bottom of the sealing gasket, a packing body is arranged at the bottom of the positioning sleeve, a valve body is arranged at the bottom of the packing body, a valve stem is movably penetrated through the sealing gasket, the packing body, the positioning sleeve and the positioning seat, a handle is arranged on the top of the valve stem, and the bottom end of the valve stem is fixedly connected to the valve body, a damping device is arranged in the positioning seat, adjustment mechanisms are arranged near both sides of the inner cavity of the ball valve base, rectangular openings are opened on both sides of the cover body, grooves are opened near the top on both sides of the ball valve base, and the grooves are arranged to be connected with adjacent rectangular openings, and the inner cavity of the grooves is provided with a disassembly mechanism.

[0008] Preferably, the disassembly mechanism includes two telescopic rods fixed on one side of the inner cavity of the groove and a fixing plate fixed together at the end of the telescopic rods, an arc block is fixedly installed on the left side of the fixing plate, and one side of the arc block is located in the inner cavity of the rectangular opening, and telescopic springs are movably sleeved on the outer sides of the telescopic rods, and both ends of the telescopic springs are fixedly connected to one side of the inner cavity of the groove and the fixing plate respectively.

[0009] Preferably, a mounting plate is fixedly installed at the bottom of the inner cavity of the rectangular opening, a through hole is opened on the left side of the mounting plate, a T-shaped rod is passed through the inner cavity of the through hole, a sliding plate is fixedly installed at the end of the T-shaped rod, a return spring is provided on the outer side of the T-shaped rod near the end of the movable sleeve, the two ends of the return spring are respectively fixedly connected to the mounting plate and the sliding plate, a cross bar is fixedly installed on the right side of the sliding plate, a push block is fixedly installed at the end of the cross bar, and the push block and the arc block are arranged to fit each other.

[0010] Preferably, sliders are fixedly mounted at the top and bottom of the sliding plate, and sliding grooves are provided at the top and bottom of the inner cavity of the rectangular opening, and the sliders are movably connected to the inner cavities of adjacent sliding grooves.

[0011] Preferably, the adjusting mechanism comprises a circular plate fixedly mounted on the bottom of the inner cavity of the ball valve base and a through-hole opened on the circular plate, a threaded rod movably penetrates the top of the ball valve base, a knob is fixedly mounted on the top of the threaded rod, a fixed block is movably mounted on the bottom end of the threaded rod, the rear side of the fixed block is fixedly connected to one side of the inner cavity of the ball valve base, a threaded sleeve is threadedly connected to the outer side of the threaded rod, an arc rod is hingedly mounted on the left side of the threaded sleeve, a hinged plate is hingedly mounted on the left side of the arc rod, the top of the hinged plate is movably connected to the circular plate, a sealing plug is fixedly mounted on the left side of the hinged plate, and the sealing plug is inserted into the inner cavity of the through-hole.

[0012] Preferably, a through hole is opened on the top of the threaded sleeve, and a limiting rod is penetrated through the inner cavity of the through hole, the top end of the limiting rod is fixedly connected to one side of the inner cavity of the ball valve base, and the other end of the limiting rod is fixedly connected to the fixing block.

[0013] The working principle and beneficial effects of the utility model are:

[0014] In the utility model, through the mutual cooperation of the T-shaped rod, the reset spring, the sliding plate, the cross rod, the push block, the telescopic rod, the fixed plate, the telescopic spring and the arc block, the push block can push the arc block to move to the inner cavity of the groove under the connection of the cross rod, so that the cover body can be removed from the base of the ball valve, so as to facilitate the replacement of the packing body and reduce the intensity of the staff to replace the packing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0016] Figure 1It is a cross-sectional view of the utility model;

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 For the utility model Figure 2 Enlarged view of point B in the middle;

[0019] Figure 4 For the utility model Figure 2 Enlarged view of point C in the middle;

[0020] Figure 5 For the utility model Figure 1 Enlarged view of point D in the middle.

[0021] In the figure: 1. ball valve base; 2. cover body; 3. positioning seat; 4. valve stem; 5. sealing gasket; 6. packing body; 7. positioning sleeve; 8. valve body; 9. round plate; 10. hinged plate; 11. sealing plug; 12. threaded rod; 13. threaded sleeve; 14. arc rod; 15. limit rod; 16. fixed block; 17. mounting plate; 18. T-shaped rod; 19. reset spring; 20. sliding plate; 21. cross bar; 22. push block; 23. telescopic rod; 24. fixed plate; 25. telescopic spring; 26. arc block. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] The utility model provides a ball valve which is convenient for replacing packing. Figure 1-5 As shown, it includes a ball valve base 1, a cover body 2 is arranged on the top of the ball valve base 1, a positioning seat 3 is fixedly installed on the top of the cover body 2, a sealing gasket 5 is arranged in the inner cavity of the ball valve base 1, a positioning sleeve 7 is arranged at the bottom of the sealing gasket 5, a packing body 6 is arranged at the bottom of the positioning sleeve 7, and a valve body 8 is arranged at the bottom of the packing body 6, and a valve stem 4 is movably penetrated through the sealing gasket 5, the top of the valve stem 4 is provided with a handle, and the bottom end of the valve stem 4 is fixedly connected to the valve body 8, a damping device is arranged in the positioning seat 3, and an adjustment mechanism is arranged near both sides of the inner cavity of the ball valve base 1, rectangular openings are opened on both sides of the cover body 2, grooves are opened on both sides of the ball valve base 1 near the top, and the grooves are connected with adjacent rectangular openings, and the inner cavity of the grooves is provided with a disassembly mechanism.

[0025] In one embodiment, the disassembly mechanism includes two telescopic rods 23 fixed on one side of the inner cavity of the groove and a fixed plate 24 fixed together at the end of the telescopic rods 23, an arc block 26 is fixedly installed on the left side of the fixed plate 24, and one side of the arc block 26 is located in the inner cavity of the rectangular opening, and a telescopic spring 25 is movably sleeved on the outer side of the telescopic rod 23, and the two ends of the telescopic spring 25 are respectively fixedly connected to one side of the inner cavity of the groove and the fixed plate 24.

[0026] In one embodiment, a mounting plate 17 is fixedly installed at the bottom of the inner cavity of the rectangular opening, a through hole is opened on the left side of the mounting plate 17, a T-shaped rod 18 is penetrated through the inner cavity of the through hole, a sliding plate 20 is fixedly installed at the end of the T-shaped rod 18, a return spring 19 is provided on the outer side of the T-shaped rod 18 near the end of the movable sleeve, and the two ends of the return spring 19 are respectively fixedly connected to the mounting plate 17 and the sliding plate 20, a cross bar 21 is fixedly installed on the right side of the sliding plate 20, a push block 22 is fixedly installed at the end of the cross bar 21, and the push block 22 and the arc block 26 are arranged to fit each other.

[0027] In one embodiment, sliders are fixedly installed at the top and bottom of the sliding plate 20, and sliding grooves are opened at the top and bottom of the inner cavity of the rectangular opening, and the sliders are movably connected to the inner cavities of adjacent sliding grooves.

[0028] In one embodiment, the adjustment mechanism includes a circular plate 9 fixedly mounted on the bottom of the inner cavity of the ball valve base 1 and a through-hole opened on the circular plate 9, a threaded rod 12 is movably penetrated through the top of the ball valve base 1 (a bearing is fixedly mounted on the ball valve base 1, and the bottom end of the threaded rod 12 penetrates the inner cavity of the bearing), a knob is fixedly mounted on the top of the threaded rod 12, a fixed block 16 is movably mounted on the bottom end of the threaded rod 12 (a bearing is fixedly mounted on the top of the fixed block 16, and the bottom end of the threaded rod 12 is inserted into the inner cavity of the bearing), the rear side of the fixed block 16 is fixedly connected to one side of the inner cavity of the ball valve base 1, a threaded sleeve 13 is threadedly connected to the outer side of the threaded rod 12, an arc rod 14 is hinged on the left side of the threaded sleeve 13, a hinged plate 10 is hinged on the left side of the arc rod 14, the top of the hinged plate 10 is movably connected to the circular plate 9, a sealing plug 11 is fixedly mounted on the left side of the hinged plate 10, and the sealing plug 11 is inserted into the inner cavity of the through-hole.

[0029] In one embodiment, a through hole is opened at the top of the threaded sleeve 13, and a limiting rod 15 is penetrated through the inner cavity of the through hole. The top end of the limiting rod 15 is fixedly connected to one side of the inner cavity of the ball valve base 1, and the other end of the limiting rod 15 is fixedly connected to the fixing block 16.

[0030] In summary, when the packing body 6 needs to be replaced, the two knobs are rotated to rotate the threaded rod 12 fixed on the adjacent knobs, and the threaded sleeve 13 threadedly connected to the outer side of the adjacent threaded rod 12 moves downward under the limit of the perforation and the limit rod 15, and the arc rod 14 hinged on the adjacent threaded sleeve 13 is used to rotate the adjacent hinge plate 10 at the hinge point, so that the sealing plug 11 fixed on the adjacent hinge plate 10 is inserted into the inner cavity of the adjacent rectangular opening, so that when the packing body 6 is replaced, moisture flows out from the upper part of the ball valve base 1. After that, take out the handle and push the T-shaped rod 18 to the opposite side, so that the sliding plate 20 fixed on the adjacent T-shaped rod 18 moves to the opposite side under the limit of the adjacent slide groove and the slider, and the adjacent push block 22 pushes the adjacent arc block 26 to move to the inner cavity of the adjacent groove under the connection of the adjacent cross bar 21, so as to facilitate the separation of the cover body 2 and the ball valve base 1, and then slide the sealing gasket 5 and the positioning sleeve 7 out from the top of the valve stem 4, take out the packing body 6, and replace the packing body 6, which reduces the intensity of the staff to replace the packing body 6.

[0031] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A ball valve for facilitating replacement of packing, comprising a ball valve base (1), a cover body (2) being arranged on the top of the ball valve base (1), a positioning seat (3) being fixedly installed on the top of the cover body (2), a sealing gasket (5) being arranged in the inner cavity of the ball valve base (1), a positioning sleeve (7) being arranged at the bottom of the sealing gasket (5), a packing body (6) being arranged at the bottom of the positioning sleeve (7), a valve body (8) being arranged at the bottom of the packing body (6), a valve stem (4) being movably penetrated through the sealing gasket (5), the packing body (6), the positioning sleeve (7) and the positioning seat (3), a handle being arranged at the top end of the valve stem (4), and the bottom end of the valve stem (4) being fixedly connected to the valve body (8), and a damping device being arranged in the positioning seat (3), characterized in that: The inner cavity of the ball valve base (1) is provided with adjustment mechanisms near both sides, the cover body (2) is provided with rectangular openings on both sides, and grooves are provided near the top on both sides of the ball valve base (1), and the grooves are connected to adjacent rectangular openings, and the inner cavities of the grooves are provided with disassembly mechanisms.

2. A ball valve for easy replacement of packing according to claim 1, characterized in that: The disassembly mechanism comprises two telescopic rods (23) fixed to one side of the inner cavity of the groove and a fixing plate (24) fixed to the ends of the telescopic rods (23); an arc block (26) is fixedly installed on the left side of the fixing plate (24), and one side of the arc block (26) is located in the inner cavity of the rectangular opening; a telescopic spring (25) is movably sleeved on the outer side of the telescopic rod (23), and two ends of the telescopic spring (25) are respectively fixedly connected to one side of the inner cavity of the groove and the fixing plate (24).

3. A ball valve for easy replacement of packing according to claim 2, characterized in that: A mounting plate (17) is fixedly mounted on the bottom of the inner cavity of the rectangular opening, a through hole is opened on the left side of the mounting plate (17), a T-shaped rod (18) is passed through the inner cavity of the through hole, a sliding plate (20) is fixedly mounted on the end of the T-shaped rod (18), a return spring (19) is movably sleeved on the outer side of the T-shaped rod (18) near the end, the two ends of the return spring (19) are respectively fixedly connected to the mounting plate (17) and the sliding plate (20), a cross bar (21) is fixedly mounted on the right side of the sliding plate (20), a push block (22) is fixedly mounted on the end of the cross bar (21), and the push block (22) and the arc block (26) are arranged to fit each other.

4. A ball valve for easy replacement of packing according to claim 3, characterized in that: Slide blocks are fixedly mounted at the top and bottom of the sliding plate (20), and slide grooves are provided at the top and bottom of the inner cavity of the rectangular opening, and the slide blocks are movably connected to the inner cavities of adjacent slide grooves.

5. A ball valve for easy replacement of packing according to claim 1, characterized in that: The regulating mechanism comprises a circular plate (9) fixedly mounted on the bottom of the inner cavity of the ball valve base (1) and a through-hole formed on the circular plate (9); a threaded rod (12) movably penetrates the top of the ball valve base (1); a knob is fixedly mounted on the top of the threaded rod (12); a fixed block (16) is movably mounted on the bottom of the threaded rod (12); the rear side of the fixed block (16) is fixedly connected to one side of the inner cavity of the ball valve base (1); a threaded sleeve (13) is threadedly connected to the outer side of the threaded rod (12); an arc rod (14) is hingedly connected to the left side of the threaded sleeve (13); a hinged plate (10) is hingedly connected to the left side of the arc rod (14); the top of the hinged plate (10) is movably connected to the circular plate (9); a sealing plug (11) is fixedly mounted on the left side of the hinged plate (10); and the sealing plug (11) is inserted into the inner cavity of the through-hole.

6. A ball valve for easy replacement of packing according to claim 5, characterized in that: The threaded sleeve (13) is provided with a through hole at the top, and a limiting rod (15) is provided through the inner cavity of the through hole. The top end of the limiting rod (15) is fixedly connected to one side of the inner cavity of the ball valve base (1), and the other end of the limiting rod (15) is fixedly connected to a fixing block (16).

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