High-temperature-resistant fluorine-lined ball valve

Abstract

The invention relates to the technical field of ball valves, in particular to a high-temperature-resistant fluorine-lined ball valve, and provides the high-temperature-resistant fluorine-lined ball valve aiming at solving the problems that when an existing fluorine-lined ball valve pipe is connected, a bolt and a nut are inconvenient to disassemble, the mounting and maintenance efficiency is influenced and the like, and the high-temperature-resistant fluorine-lined ball valve comprises a valve body, a valve element capable of rotating is arranged in the valve body, a plurality of incomplete thread seats matched with the bolts are arranged on the expansion pad, and when the driving cylinder rotates, a structure that the incomplete thread seats move towards the inner side to lock and fix the bolts can be formed. When the driving cylinder rotates, a structure that the multiple arc-shaped expanding and supporting plates synchronously move outwards to enable the inner sealing ring to be tightly attached to the inner wall of the extending sealing ring and the multiple arc-shaped clamping plates move inwards to enable the outer sealing ring to be tightly attached to the outer wall of the extending sealing ring can be formed. When pipes are connected, bolts and nuts of the fluorine-lined ball valve can be quickly disassembled and assembled, so that installation and maintenance are more convenient, the sealing effect of the pipe connecting position can be improved, leakage is prevented, and waste, pollution and the like are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, in particular to a high-temperature resistant fluorine-lined ball valve. Background Art

[0002] Fluorine-lined ball valves have strong corrosion resistance and sealing performance, and have a long service life. Therefore, fluorine-lined ball valves are widely used in gas, liquid, and semi-fluid pipelines and containers in chemical, petroleum, pharmaceutical, food, papermaking, hydropower and other systems as interception and regulation equipment, and can replace gate valves, stop valves and other types of cut-off and regulating valves. The current fluorine-lined ball valves still have certain inconveniences during installation or maintenance. Bolts and nuts are usually used to fix the pipes when connecting them. If the pipes are laid on one side of the wall, the operation is very limited in the space with obstacles, and it is not convenient to disassemble the bolts and nuts. In addition, the sealing effect of the pipe connection is poor, and it is easy to leak, causing waste and pollution. Therefore, a fluoroplastic plug valve is designed to solve the above-mentioned problems. Summary of the invention

[0003] In view of the fact that the bolts and nuts of the existing fluorine-lined ball valves are not convenient to disassemble when connecting pipes, which affects the installation and maintenance efficiency, the present invention provides a fluoroplastic plug valve, which can quickly disassemble and assemble the bolts and nuts of the fluorine-lined ball valve when connecting pipes, making installation and maintenance more convenient, facilitating the ball cleaning and pipeline maintenance of the pipeline system, and improving the sealing effect of the pipe connection, preventing leakage, avoiding waste and pollution, etc., effectively solving the problems mentioned in the above-mentioned background technology.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: A high-temperature resistant fluorine-lined ball valve comprises a valve body, wherein a rotatable valve core is provided inside the valve body, connecting pipes are respectively provided on both sides of the valve body, expansion pads are respectively provided on the outer sides of the two connecting pipes, pipes are respectively installed on the outer ends of the two expansion pads, fixing pads matched with the expansion pads are respectively provided on the outer surfaces of the pipes, extended sealing rings are respectively provided in the middle of the fixing pads, and a plurality of bolts distributed evenly are provided at the outer periphery of the fixing pads, a rotatable driving cylinder is respectively provided on the connecting pipe, a plurality of incomplete threaded seats matched with the bolts are provided on the expansion pads, and when the driving cylinder is rotated, a structure in which the incomplete threaded seats move inwards to lock and fix the bolts is formed; an inner sealing ring and an outer sealing ring matched with the extended sealing ring are also respectively provided on the expansion pads, a plurality of arc-shaped expansion support plates are respectively provided on the inner side of the inner sealing ring, and a plurality of arc-shaped clamping plates are respectively provided on the outer side of the outer sealing ring, and when the driving cylinder is rotated, a structure in which the plurality of arc-shaped expansion support plates move outwards synchronously to make the inner sealing ring close to the inner wall of the extended sealing ring, and the plurality of arc-shaped clamping plates move inwards to make the outer sealing ring close to the outer wall of the extended sealing ring is formed.

[0005] The inner wall of the upper end of the valve body is rotatably connected to a transmission shaft, the valve core is fixedly connected to the lower end of the outer surface of the transmission shaft, a rotatable handle is hinged on the upper end surface of the transmission shaft, and a locking mechanism matching the valve core is also provided on the transmission shaft.

[0006] The locking mechanism includes an inner rod slidably connected to the transmission shaft, a short pin is provided at the upper end of the inner rod, a key-shaped groove matching the short pin is opened on the handle, a round base is fixedly connected to the lower end surface of the inner rod, first clamping grooves are respectively fixedly connected to the two ends of the outer surface of the round base, a first gear ring matching the first clamping tooth is fixedly connected to the inner wall of the valve body, and a first tension spring matching the round base is fixedly connected to the inner wall of the transmission shaft.

[0007] Four evenly distributed driving plates are slidably connected to the expansion pads, and guide plates are fixedly connected to both sides of the outer end faces of the driving plates. Second inclined grooves are respectively opened on the guide plates, and second sliding pins matching the second inclined grooves are respectively fixedly connected to the incomplete threaded seats.

[0008] Extension rods are fixedly connected to the inner end faces of the driving plates, sleeve rods are fixedly connected to the inner walls of the extension rods, and the arc-shaped expansion plates are fixedly connected to the corresponding sleeve rods; four evenly distributed limiting guide rods are fixedly connected to the inner walls of the connecting tubes, and four evenly distributed supporting pads are also fixedly connected to the inner walls of the connecting tubes, one end of the sleeve rods is slidably connected to the limiting guide rods, the other end of the sleeve rods is slidably connected to the inner walls of the supporting pads, and the arc-shaped expansion plates are slidably connected to the corresponding supporting pads.

[0009] Extension pins are also fixed to the driving plate, and two limit bars are fixed to the outer end surfaces of the arc-shaped clamping plates, which are slidably connected to the expansion pads, which are rotatably connected to spur gears, and spur racks fixed to the limit bars are meshed on the outer surfaces of the spur gears, and long rocker bars are coaxially fixed to the spur gears, which are provided with short key grooves matching the extension pins.

[0010] The driving cylinders are rotatably connected to the end surfaces on both sides of the valve body, the inner walls of the driving cylinders are slidably connected with threaded cylinders, the outer surfaces of the connecting pipes are respectively provided with threads matching the threaded cylinders, the threaded cylinders are respectively threadedly connected to the corresponding connecting pipes, the outer surfaces of the threaded cylinders are also rotatably connected with connecting rings, the outer surfaces of the connecting rings are fixedly provided with four evenly distributed guide seats, the driving plates are respectively fixedly provided with first sliding pins, and the guide seats are respectively provided with first inclined grooves matching the first sliding pins.

[0011] Two centrally symmetrical U-shaped seats are fixedly connected to the outer surface of the driving cylinder, and long slides are slidably connected to the inner walls of the U-shaped seats. First springs matching with the long slides are fixedly connected to the inner walls of the bottom ends of the U-shaped seats on both sides, and movable handles are fixedly connected to the outer end surfaces of the two long slides. Second gear rings are fixedly connected to the left and right end surfaces of the valve body, and second latching teeth matching with the second gear rings are fixedly connected to the long slides.

[0012] The inner walls of the front and rear ends of the long slide are respectively fixed with square tubes, the inner walls of the square tubes are respectively slidably connected with anti-drop pads, the outer sides of the two anti-drop pads are respectively fixed with bayonet pins, the inner walls of the square tubes are respectively fixed with second springs matching with the anti-drop pads, and the inner walls of the front and rear ends of the U-shaped seat are respectively provided with long slots matching with the bayonet pins.

[0013] The inner walls at the front and rear ends of the long slide are slidably connected with control plates, the anti-drop pads are fixed with movable pins, the lower end of the control plate is provided with a long oblique groove and a short vertical groove matching with the movable pins, and the U-shaped seat is fixed with two baffles matching with the corresponding control plates.

[0014] Compared with the prior art, the present invention has the following advantages: When the present invention is in use, when the driving cylinder rotates, the two incomplete thread seats can move inwards. When the two incomplete thread seats move inwards, the bolts can be locked and fixed, and the bolts are fixed to prevent movement, so that the ball valve and the pipeline can be quickly connected, fixed or disassembled. Through the cooperation of the provided extended sealing ring, the inner sealing ring and the outer sealing ring, when the driving cylinder rotates, the arc expansion plate can be driven to move outwards and the arc clamping plate can be driven inwards at the same time, so that the inner sealing ring squeezes the inner wall of the extended sealing ring and the outer sealing ring squeezes the outer wall of the extended sealing ring, so that the connection between the pipeline and the ball valve can be double-sealed to enhance the sealing effect, and the arc expansion plate and the arc clamping plate are staggered. The sealing is fixed by the double staggered squeezing and fixing of the inner and outer sides, so that the sealing effect is further improved; the fluorine-lined ball valve can be quickly disassembled and assembled when the pipe is connected, making installation and maintenance more convenient, facilitating the ball sweeping and pipeline maintenance of the pipeline system, and improving the sealing effect of the pipe connection to prevent leakage and avoid waste and pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is an axonometric view of a high temperature resistant fluorine lined ball valve of the present invention.

[0016] Figure 2 The present invention is a cross-sectional view of a valve body of a high-temperature resistant fluorine-lined ball valve.

[0017] Figure 3 The present invention is a schematic diagram of the installation of a handle of a high temperature resistant fluorine lined ball valve.

[0018] Figure 4 The present invention is a cross-sectional view of a transmission shaft of a high-temperature resistant fluorine-lined ball valve.

[0019] Figure 5 The present invention is a schematic diagram of the installation of an expansion gasket of a high temperature resistant fluorine lined ball valve.

[0020] Figure 6 The invention discloses a schematic diagram of the installation of an extended sealing ring of a high temperature resistant fluorine lined ball valve.

[0021] Figure 7 The invention discloses a schematic diagram of the installation of a threaded barrel of a high temperature resistant fluorine lined ball valve.

[0022] Figure 8 The present invention is a cross-sectional view of a connecting pipe of a high-temperature resistant fluorine-lined ball valve.

[0023] Fig. 9 The present invention is a schematic diagram of the installation of an incomplete threaded seat of a high temperature resistant fluorine lined ball valve.

[0024] Fig.10 The present invention is a schematic diagram of the installation of an arc-shaped clamping plate of a high-temperature resistant fluorine-lined ball valve.

[0025] Fig.11 The present invention is a schematic diagram of the installation of a U-shaped seat of a high temperature resistant fluorine lined ball valve.

[0026] Fig.12 The present invention is a cross-sectional view of a U-shaped seat of a high-temperature resistant fluorine-lined ball valve.

[0027] Fig.13 The present invention is a square tube cross-sectional view of a high temperature resistant fluorine lined ball valve.

[0028] Fig.14 It is a partial enlarged view of a long slide plate of a high temperature resistant fluorine lined ball valve of the present invention.

[0029] Fig.15 The invention discloses a cross-sectional view of a long slide plate of a high temperature resistant fluorine lined ball valve.

[0030] Numbers in the figure: 1-valve body, 2-valve core, 3-transmission shaft, 4-handle, 5-side seat, 6-short pin, 7-inner rod, 8-round base, 9-first latch, 10-first gear ring, 11-first tension spring, 12-fixing pad, 13-pipeline, 14-extension seal ring, 15-bolt, 17-connecting pipe, 18-threaded cylinder, 19-expansion pad, 20-inner seal ring, 21-outer seal ring, 22-guide seat, 23-first inclined groove, 24-first sliding pin, 25-driving plate, 26-incomplete threaded seat, 27-guide plate, 28-second sliding pin, 29-second inclined groove, 30-extension rod, 31-sleeve Rod, 32-support pad, 33-arc expansion support plate, 34-limit guide rod, 35-extension pin, 36-long rocker, 37-short keyway, 38-spur gear, 39-spur rack, 40-limit bar, 41-arc splint, 42-driving cylinder, 43-second gear ring, 44-second latch, 45-long slide plate, 46-first spring, 47-handle, 48-U-shaped seat, 49-square cylinder, 50-second spring, 51-anti-slip pad, 52-bayonet, 53-baffle, 54-control board, 55-live pin, 56-long oblique groove, 57-short vertical groove, 58-long latch, 59-connecting ring, 60-key groove. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0032] like Figure 1-Figure 13 As shown, the present invention provides a high temperature resistant fluorine lined ball valve, comprising a valve body 1, wherein a rotatable valve core 2 is arranged inside the valve body 1, connecting pipes 17 are arranged on both sides of the valve body 1, expansion pads 19 are arranged on the outer sides of the two connecting pipes 17, pipes 13 are installed on the outer ends of the two expansion pads 19, and fixed pads 12 matched with the expansion pads 19 are arranged on the outer surfaces of the pipes 13, extended sealing rings 14 are arranged in the middle of the fixed pads 12, and multiple bolts 15 evenly distributed are arranged on the outer periphery of the fixed pads 12, rotatable driving cylinders 42 are arranged on the connecting pipes 17, and multiple incomplete screws 15 matched with the bolts 15 are arranged on the expansion pads 19. The threaded seat 26, when the driving cylinder 42 rotates, can form a structure in which the incomplete threaded seat 26 moves inward to lock and fix the bolt 15; the expansion pad 19 is also respectively provided with an inner sealing ring 20 and an outer sealing ring 21 that cooperate with the extended sealing ring 14, and the inner side of the inner sealing ring 20 is respectively provided with a plurality of arc-shaped expansion plates 33, and the outer side of the outer sealing ring 21 is respectively provided with a plurality of arc-shaped clamping plates 41. When the driving cylinder 42 rotates, it can form a structure in which the plurality of arc-shaped expansion plates 33 move synchronously outward to make the inner sealing ring 20 close to the inner wall of the extended sealing ring 14, and the plurality of arc-shaped clamping plates 41 move inward to make the outer sealing ring 21 close to the outer wall of the extended sealing ring 14.

[0033] like Figure 1-Figure 10As shown, the valve body 1 and the connecting pipe 17 are hollow inside. The connecting pipe 17 is used to connect the pipe 13. The connecting pipe 17 is fixedly connected to the end faces of both sides of the valve body 1. The valve core 2 is rotatably connected to the inner wall of the valve body 1. When the valve core 2 rotates, it can control the valve to open or close; the valve core 2 is made of polytetrafluoroethylene, which has strong high temperature resistance and corrosion resistance. The polytetrafluoroethylene material is a prior art and will not be described in detail; through the cooperation of the expansion pad 19 and the fixing pad 12, the ball valve can be fixed on the pipe 13. A plurality of through holes are opened on the expansion pad 19, and the bolts 15 can pass through the through holes and cooperate with the corresponding incomplete threaded seats 26, such as Fig.10 As shown, the inner sealing ring 20 is provided with an outer chamfer, and the outer sealing ring 21 is provided with an inner chamfer. The outer chamfer and the inner chamfer are provided to facilitate the insertion of the extended sealing ring 14 between the inner sealing ring 20 and the outer sealing ring 21. The inner sealing ring 20 and the outer sealing ring 21 are made of rubber and have a certain elastic deformation. When the arc expansion plate 33 moves outward, the inner sealing ring 20 can be squeezed and deformed, so that the inner sealing ring 20 is more closely fitted to the inner wall of the extended sealing ring 14. Similarly, when the arc clamping plate 41 moves outward, the outer sealing ring 21 can be squeezed, so that the outer sealing ring 21 is more closely fitted to the outer wall, that is, the outer surface, of the extended sealing ring 14. When the ball valve is connected to the pipeline 13, the bolt 15 is inserted into the corresponding two incomplete thread seats 26, and the extended sealing ring 14 is inserted between the inner sealing ring 20 and the outer sealing ring 21. When the driving cylinder 42 rotates, the two incomplete thread seats 26 can be moved inward. When the two incomplete thread seats 26 move inward The bolt 15 can be locked and fixed, even if the bolt 15 is fixed to prevent movement, so that the ball valve and the pipeline 13 can be quickly connected, fixed or disassembled. Through the cooperation between the extended sealing ring 14, the inner sealing ring 20 and the outer sealing ring 21, when the driving cylinder 42 rotates, the arc expansion plate 33 can be driven to move outward and the arc clamping plate 41 can be driven to move inward at the same time, so that the inner sealing ring 20 squeezes the inner wall of the extended sealing ring 14, and the outer sealing ring 21 squeezes the outer wall of the extended sealing ring 14, so that the connection between the pipeline 13 and the ball valve can be double-sealed to enhance the sealing effect, and the arc expansion plate 33 and the arc clamping plate 41 are staggered. The sealing is fixed by the double staggered extrusion inside and outside, which further improves the sealing effect; the fluorine-lined ball valve can be quickly disassembled and assembled when the pipe is connected, making installation and maintenance more convenient, facilitating the ball sweeping and pipeline maintenance of the pipeline system, and improving the sealing effect of the pipe connection to prevent leakage, avoid waste and pollution, etc.

[0034] The inner wall of the upper end of the valve body 1 is rotatably connected to a transmission shaft 3, a valve core 2 is fixedly connected to the lower end of the outer surface of the transmission shaft 3, a rotatable handle 4 is hinged on the upper end surface of the transmission shaft 3, and a locking mechanism cooperating with the valve core 2 is also provided on the transmission shaft 3.

[0035] like Figure 2-Figure 4As shown, through the transmission shaft 3 and handle 4, the handle 4 can be driven to rotate when the transmission shaft 3 rotates. A side seat 5 is fixedly connected to the upper end surface of the transmission shaft 3, and the handle 4 is hinged on the side seat 5, which is equivalent to the handle 4 being hinged to the upper end surface of the transmission shaft 3; when the handle 4 is rotated, the transmission shaft 3 and the valve core 2 can be driven to rotate, thereby controlling the opening or closing of the valve. Through the provided locking mechanism, the position of the transmission shaft 3 and the valve core 2 can be locked to prevent the valve core 2 and the transmission shaft 3 from rotating, that is, the size of the valve opening can be locked.

[0036] The locking mechanism includes an inner rod 7 slidably connected to the transmission shaft 3, a short pin 6 is provided at the upper end of the inner rod 7, a key-shaped groove 60 matching the short pin 6 is opened on the handle 4, a round base 8 is fixedly connected to the lower end surface of the inner rod 7, and first clamping grooves are respectively fixedly connected to the two ends of the outer surface of the round base 8, a first gear ring 10 matching the first clamping tooth 9 is fixedly connected to the inner wall of the valve body 1, and a first tension spring 11 matching the round base 8 is fixedly connected to the inner wall of the transmission shaft 3.

[0037] like Figure 3-Figure 4 As shown, the inner rod 7 can be slidably connected to the inner wall of the transmission shaft 3 up and down, and the inner rod 7 and the transmission shaft 3 are splined, so that the inner rod 7 and the transmission shaft 3 can keep synchronous rotation; rectangular grooves are respectively provided at both ends of the outer surface of the transmission shaft 3, so that the first latching tooth 9 can move up and down on the transmission shaft 3 and the inner wall of the rectangular groove, and the first tension spring 11 can exert a downward pulling force on the round base 8, so that the round base 8 and the first latching tooth 9 are at the bottom position under normal conditions, and the installation and shape of the first gear ring 10 and the first latching tooth 9 are as shown in the figure. Figure 3 or Figure 4 As shown, when the first latch tooth 9 is at the bottom, it can mesh with the first gear ring 10, and at this time, the first latch tooth 9, the inner rod 7, the transmission shaft 3, etc. can be limited to rotate, that is, the position of the transmission shaft 3 and the valve core 2 is fixed; the upper end surface of the inner rod 7 is fixedly connected to a support seat, and the short pin 6 is fixedly connected to the support seat, which is equivalent to the short pin 6 being fixedly connected to the upper end of the inner rod 7; when the valve core 2 needs to be rotated, the handle 4 is driven to flip upward to a specified angle. When the handle 4 is flipped upward, the key groove 60 is engaged with the short pin 6, and the short pin 6 can be driven to rotate. The inner rod 7, the round base 8, the first latch tooth 9, etc. move upward synchronously. When the first latch tooth 9 moves upward, it can disengage from the first gear ring 10. At this time, the transmission shaft 3 and the valve core 2 can be driven to rotate. When the handle 4 is released, the corresponding handle 4, the inner rod 7, the short pin 6, the first latch tooth 9, etc. can move downward and reset under the tension of the first tension spring 11, and the first latch tooth 9 will mesh with the first gear ring 10 again. At this time, the handle 4, the transmission shaft 3, the valve core 2, etc. can be limited to rotate again, thereby making the ball valve more stable when in use.

[0038] Four evenly distributed driving plates 25 are slidably connected to the expansion pad 19, and guide plates 27 are fixedly connected to both sides of the outer end faces of the driving plates 25. The guide plates 27 are respectively provided with second inclined grooves 29, and the incomplete thread seats 26 are respectively fixedly connected with second sliding pins 28 that match the second inclined grooves 29.

[0039] like Figure 6-Figure 9 As shown, the driving plate 25 can move inward or outward on the expansion pad 19, and each expansion pad 19 is respectively installed with four groups of incomplete thread seats 26, each group of incomplete thread seats 26 has two and are respectively slidably connected to the expansion pad 19, that is, the two incomplete thread seats 26 can move inward or outward, that is, control the engagement or disengagement with the bolt 15; when the four driving plates 25 move inward synchronously, they can drive the corresponding guide plate 27 to move inward, and when the guide plate 27 moves inward, it will drive the two pairs of guide plates 27 to engage with the second inclined groove 29 and the second sliding pin 28. The corresponding second sliding pin 28 and the incomplete thread seat 26 move synchronously outward. When the incomplete thread seat 26 moves outward, the bolt 15 can be disengaged from the incomplete thread seat 26, and the bolt 15 is no longer fixed. Similarly, when the four driving plates 25 move synchronously outward, the incomplete thread seat 26 can be driven to move synchronously inward, so that the incomplete thread seat 26 can quickly engage with the bolt 15, thereby fixing the bolt 15. That is, by controlling the moving direction of the driving plate 25, the bolt 15 can be quickly fixed or removed, thereby speeding up the efficiency of installation or disassembly.

[0040] The inner end faces of the driving plate 25 are respectively fixed with extension rods 30, the inner walls of the extension rods 30 are respectively fixed with sleeve rods 31, and the arc-shaped expansion plates 33 are respectively fixed to the corresponding sleeve rods 31; the inner walls of the connecting tube 17 are respectively fixed with four evenly distributed limiting guide rods 34, and the inner walls of the connecting tube 17 are also respectively fixed with four evenly distributed supporting pads 32, one end of the sleeve rod 31 is respectively slidably connected to the limiting guide rod 34, and the other end of the sleeve rod 31 is respectively slidably connected to the inner walls of the supporting pads 32, and the arc-shaped expansion plates 33 are respectively slidably connected to the corresponding supporting pads 32.

[0041] like Figure 8-Figure 9As shown, the extension rods 30 respectively penetrate the connecting tube 17 and are slidably connected to the inner wall of the connecting tube 17, so that when the driving plate 25 moves inward or outward, it can drive the extension rod 30, the sleeve rod 31, etc. to move inward or outward synchronously; through the limiting position of the limiting guide rod 34 and the support pad 32, the sleeve rod 31 can be limited to move inward or outward with the extension rod 30; the support pad 32 also serves to limit the arc expansion support plate 33, so that the arc expansion support plate 33 It can only move inward or outward; when the driving plate 25 moves inward, it can drive the extension rod 30, the sleeve rod 31, the arc-shaped expansion plate 33, etc. to move inward synchronously. When the arc-shaped expansion plate 33 moves inward, the inner sealing ring 20 is no longer fixed. Similarly, when the driving plate 25 moves outward, it can drive the arc-shaped expansion plate 33 to move outward. The arc-shaped expansion plate 33 can squeeze the inner sealing ring 20, so that the inner sealing ring 20 is close to the inner wall of the extension sealing ring 14.

[0042] The driving plate 25 is also fixedly connected to the extension pin 35, and two limit bars 40 are fixedly connected to the outer end surfaces of the arc-shaped clamping plate 41, and the limit bars 40 are respectively slidably connected to the expansion pads 19, and the expansion pads 19 are respectively rotatably connected to the spur gears 38, and the outer surfaces of the spur gears 38 are respectively meshed with spur racks 39 fixedly connected to the limit bars 40, and the spur gears 38 are also coaxially fixedly connected to the long rocker rods 36, and the long rocker rods 36 are respectively provided with short key grooves 37 that match the extension pins 35.

[0043] like Fig.10As shown, the limit strip 40 can slide on the expansion pad 19, that is, move inward or outward. The limit strip 40 can limit the spur rack 39 and the arc-shaped clamping plate 41, so that the spur rack 39 and the arc-shaped clamping plate 41 can only move inward or outward; the spur gear 38 and the inner wall of the long swing rod 36 are fixed with a rotating shaft, and the rotating shafts are respectively rotatably connected to the expansion pad 19. When the long swing rod 36 swings, it can drive the spur gear 38 to rotate synchronously. When the spur gear 38 rotates, it can drive the spur rack 39 to move inward or outward, that is, the spur gear 38, the limit strip 40, the arc-shaped clamping plate 41, etc. move inward or outward synchronously; the expansion pad Four evenly distributed rectangular grooves are provided on 19, and the extension pins 35 respectively penetrate the corresponding rectangular grooves and are slidably connected to the inner walls of the rectangular grooves, and can drive the extension pins 35 to move when the driving plate 25 moves; when the driving plate 25 and the extension pins 35 move inward, the extension pins 35 move inward and engage with the short key grooves 37, and can drive the long swing rod 36 to swing inward, and when the long swing rod 36 swings inward, it can drive the spur gear 38 to rotate, and when the spur gear 38 rotates, it will drive the spur rack 39, the limit strip 40, and the arc clamping plate 41 to move outward, so that the arc clamping plate 41 no longer squeezes and fixes the outer seal Circle 21, similarly, when the driving plate 25 moves outward, the extension pin 35 can drive the long swing rod 36 to swing outward, and can also drive the arc clamping plate 41 to move inward, that is, to squeeze and fix the outer sealing ring 21; the inner sealing ring 20 and the outer sealing ring 21 are respectively fixed to the expansion pad 19, and the bolts 15 are respectively fixed to the fixing pad 12. When the driving plate 25 moves inward, it can drive the arc expansion plate 33 to move inward, and the arc expansion plate 33 no longer squeezes and fixes the inner sealing ring 20, and can also drive the arc clamping plate 41 to move outward, and the arc clamping plate 41 no longer squeezes and fixes the outer sealing ring 21, and the incomplete thread seat 26 moves outward, and the incomplete thread The seat 26 is no longer engaged and fixed to the bolt 15. At this time, the pipe 13 can be quickly disassembled. When the drive plate 25 moves outward, the arc-shaped expansion plate 33 can be moved outward to squeeze and fix the inner sealing ring 20, and the arc-shaped clamping plate 41 moves inward to fix the outer sealing ring 21. The incomplete threaded seat 26 can move inward to engage and lock the bolt 15. At this time, the pipe 13 can be quickly installed, and the double seal of the inner sealing ring 20 and the outer sealing ring 21 is small and has good sealing performance to prevent leakage. The arc-shaped expansion plate 33 and the arc-shaped clamping plate 41 are staggered installations. The sealing effect can be further improved by the double staggered extrusion and fixed seal inside and outside.

[0044] The driving cylinder 42 is rotatably connected to the end surfaces of both sides of the valve body 1, and the inner walls of the driving cylinder 42 are slidably connected with the threaded cylinder 18. The outer surfaces of the connecting pipes 17 are respectively provided with threads matching with the threaded cylinder 18. The threaded cylinders 18 are respectively threadedly connected to the corresponding connecting pipes 17. The outer surfaces of the threaded cylinders 18 are also rotatably connected with connecting rings 59, and four evenly distributed guide seats 22 are fixedly connected to the outer surfaces of the connecting rings 59. The driving plates 25 are respectively fixed with first sliding pins 24, and the guide seats 22 are respectively provided with first inclined grooves 23 matching with the first sliding pins 24.

[0045] like Figure 6-Figure 9 As shown, the threaded cylinder 18 and the driving cylinder 42 are spline-connected, so that the threaded cylinder 18 can be slidably connected to the inner wall of the driving cylinder 42 left and right, and the driving cylinder 42 can drive the threaded cylinder 18 to rotate when it rotates. The threaded cylinder 18 is also threadedly connected to the outer surface of the connecting tube 17. When the driving cylinder 42 rotates, it can drive the threaded cylinder 18 to rotate synchronously. When the driving cylinder 42 rotates, through the threaded connection with the connecting tube 17, the threaded cylinder 18 and the connecting ring 59 can be synchronously moved to the left or right, that is, the two threaded cylinders 18 move inward or outward; through the rotational connection between the connecting ring 59 and the threaded cylinder 18, the threaded cylinder 18 can drive the corresponding connecting ring 59 and the guide seat 22 to move inward or outward when it moves inward or outward, and the connecting ring 59 and the guide seat 22 do not rotate with the threaded cylinder 18; the installation and shape of the guide seat 22, the first inclined groove 23, and the first sliding pin 24 are as shown in Fig. 9 As shown, when the guide seat 22 moves to the left or right, the first inclined groove 23 is engaged with the first sliding pin 24, so that the corresponding first sliding pin 24 and the driving plate 25 can be driven to move inward or outward. Therefore, when the driving cylinder 42 rotates, the driving plate 25 can be moved inward or outward, that is, the incomplete threaded seat 26, the arc-shaped expansion plate 33, the arc-shaped clamping plate 41, etc. are synchronously controlled to work, and have a self-locking function under the threaded connection between the threaded cylinder 18 and the connecting pipe 17. When the driving cylinder 42 does not rotate, the positions of the corresponding threaded cylinder 18 and the guide seat 22 are fixed, that is, the incomplete threaded seat 26, the arc-shaped expansion plate 33, the arc-shaped clamping plate 41, etc. are fixed, so that the ball valve and the pipeline 13 are stably installed.

[0046] Two centrally symmetrical U-shaped seats 48 are fixedly connected to the outer surface of the driving cylinder 42, and long slides 45 are slidably connected to the inner walls of the U-shaped seats 48. First springs 46 matching the long slides 45 are fixedly connected to the inner walls of the bottom ends of the U-shaped seats 48 on both sides, and movable handles 47 are fixedly connected to the outer end surfaces of the two long slides 45. Second gear rings 43 are fixedly connected to the left and right end surfaces of the valve body 1, and second latching teeth 44 matching the second gear rings 43 are fixedly connected to the long slides 45.

[0047] like Figure 10-12As shown, the long slide plate 45 can be slidably connected to the inner wall of the U-shaped seat 48 up and down, and the first spring 46 always has an outward driving force on the long slide plate 45, so that the long slide plate 45 and the second latch tooth 44 are at the outermost end under normal conditions. When the second latch tooth 44 is at the outermost end, it can mesh with the second gear ring 43, and at this time, the second latch tooth 44 can be limited to move, that is, the rotation of the drive cylinder 42 can be limited, and the drive cylinder 42 can be limited again to prevent the drive cylinder 42 from rotating to move the threaded cylinder 18, the drive plate 25, the incomplete threaded seat 26, the arc-shaped expansion support plate 33, the arc-shaped clamping plate 41, etc., and the incomplete threaded seat 26, the arc-shaped expansion support plate 33, the arc-shaped clamping plate 41, etc. 1, etc., so that the connection between the pipeline 13 and the ball valve is more secure; when it is necessary to control the rotation of the drive cylinder 42, the two handles 47 are driven to move inward. At this time, the handle 47 moves inward to squeeze the long slide 45 to move inward, compressing the first spring 46. When the long slide 45 moves inward, it can drive the second latching tooth 44 to move inward, so that the second latching tooth 44 is disengaged from the second gear ring 43. At this time, the handle 47 and the drive cylinder 42 can rotate. When the handle 47 is released, the long slide 45 and the second latching tooth 44 will be reset under the elastic force of the first spring 46, that is, the second latching tooth 44 is meshed with the second gear ring 43 again, limiting the rotation of the drive cylinder 42.

[0048] The inner walls of the front and rear ends of the long slide plate 45 are respectively fixedly connected with square tubes 49, and the inner walls of the square tubes 49 are respectively slidably connected with anti-slip pads 51. The outer surfaces of the two anti-slip pads 51 are respectively fixedly connected with bayonet pins 52, and the inner walls of the square tubes 49 are respectively fixedly connected with second springs 50 that cooperate with the anti-slip pads 51. The inner walls of the front and rear ends of the U-shaped seat 48 are respectively provided with long slots 58 that cooperate with the bayonet pins 52.

[0049] like Fig.13As shown, the anti-slip pad 51 and the latch pin 52 can move back and forth on the inner wall of the square tube 49. The function of the anti-slip pad 51 is to prevent the latch pin 52 from detaching from the inner wall of the square tube 49. The second spring 50 always has an outward elastic force on the latch pin 52, so that the latch pin 52 is at the outermost end under normal conditions. Since the width of the U-shaped seat 48 is set to be the same as the width of the long slide plate 45, when the latch pin 52 is at the upper end position, the inner walls on both sides of the U-shaped seat 48 can prevent the latch pin 52 from moving outward, so that the latch pin 52 is at the inner wall of the square tube 49 when it is at the upper end; when it is necessary to stably disengage the second latch tooth 44 from the second gear ring 43 When disengaging, that is, when the drive cylinder 42 needs to be rotated multiple times, the driving handle 47 is moved downward, which can drive the long slide 45, the square cylinder 49, the latch 52, etc. to move downward synchronously. When the latch 52 moves downward to meet the long slot 58, the latch 52 will enter the inner wall of the long slot 58 under the elastic force of the second spring 50. At this time, the engagement of the latch 52 and the long slot 58 can limit the upward movement of the handle 47 and the second latch tooth 44, that is, the second latch tooth 44 is stably disengaged from the second gear ring 43. At this time, the driving handle 47 can make the drive cylinder 42 rotate multiple times.

[0050] The inner walls at the front and rear ends of the long slide plate 45 are slidably connected with control plates 54, respectively; movable pins 55 are fixedly connected to the anti-slip pads 51, and the lower end of the control plate 54 is provided with a long oblique groove 56 and a short vertical groove 57 that match the movable pin 55, respectively; and two baffles 53 that match the corresponding control plates 54 are fixedly connected to the U-shaped seat 48.

[0051] like Fig.13As shown, the control plate 54 can move up and down on the inner wall of the long slide plate 45. Through the cooperation of the movable pin 55, the long inclined groove 56 and the short vertical groove 57, there is a certain friction between the control plate 54 and the long slide plate 45, so that the control plate 54 can be stable in the normal state, that is, on the inner wall of the long slide plate 45. When the handle 47 moves downward to make the latch pin 52 meet the long latch groove 58, the latch pin 52 will move outward under the elastic force of the second spring 50 and mesh with the long latch groove 58. That is, at this time, the second latch tooth 44 is disengaged from the second gear ring 43, and the corresponding drive cylinder 42 can be rotated at any time. After the drive cylinder 42 is rotated to the specified position for adjustment, when the second latch tooth 44 is required to mesh with the second gear ring 43 again, the drive cylinder 42 When locked, the driving handle 47 continues to move downward, so that the control plate 54 contacts the inner wall of the bottom end of the U-shaped seat 48. The driving handle 47 continues to move downward, which can make the long slide 45 continue to move downward, and the control plate 54 no longer moves downward, and a relative displacement occurs, that is, the control plate 54 moves upward on the inner wall of the long slide 45, and under the engagement of the long inclined groove 56 and the live pin 55, the live pin 55, the anti-drop pad 51, and the bayonet pin 52 can move inward, that is, the bayonet pin 52 enters the inner wall of the square tube 49, and the bayonet pin 52 can be disengaged from the long slot 58 after entering the inner wall of the square tube 49. When the handle 47 continues to move downward, that is, the control plate 54 continues to move upward on the inner wall of the long slide 45, the live pin 55 can enter the short vertical slot 5 7 inner wall, at this time, the movable pin 55 can be stably engaged with the inner wall of the short vertical groove 57, because the second spring 50 gives the anti-dropping pad 51 an outward driving force, the anti-dropping pad 51 will drive the movable pin 55 to have an outward driving force, at this time the movable pin 55 will be driven on the inner wall of the short vertical groove 57, that is, the driving control plate 54 has an outward driving force, because the control plate 54 can only slide up and down on the inner wall of the long slide plate 45, and cannot move forward and backward or left and right, so the movable pin 55 can be stably at the innermost end, that is, the anti-dropping pad 51 and the bayonet 52 are at the innermost end of the square tube 49, and the control plate 54, the bayonet 52, the anti-dropping pad 51, the square tube 49, the long slide plate 45, the handle 47, the second latching tooth 44, etc. are under the elastic force of the first spring 46 The second latch 44 and the second gear ring 43 are meshed with each other again, and when the control plate 54 moves upward to the top end and resets under the elastic force of the first spring 46, the control plate 54 can contact the baffle 53, and the baffle 53 can prevent the control plate 54 from continuing to move upward. At this time, the movable pin 55 can disengage from the short vertical groove 57, and the movable pin 55 will enter the inner wall of the long oblique groove 56, that is, under the elastic force of the second spring 50, the corresponding latch 52 moves outward again, that is, the outer end face of the latch 52 contacts the inner wall of the U-shaped seat 48 again, completing a cycle, and when the handle 47 continues to move downward, the latch 52 can mesh with the long slot 58 again, and it can be used repeatedly.

[0052] When the present invention is in use, when the driving cylinder 42 rotates, the two incomplete thread seats 26 can be moved inwards. When the two incomplete thread seats 26 move inwards, the bolts 15 can be locked and fixed, and the bolts 15 are fixed to prevent movement, so that the ball valve and the pipeline 13 can be quickly connected, fixed or disassembled. Through the cooperation of the extended sealing ring 14, the inner sealing ring 20 and the outer sealing ring 21, when the driving cylinder 42 rotates, the arc expansion plate 33 can be driven to move outwards and the arc clamping plate 41 can be driven inwards, so that the inner sealing ring 2 0 squeezes and extends the inner wall of the sealing ring 14, so that the outer sealing ring 21 squeezes and extends the outer wall of the sealing ring 14, which can double seal the connection between the pipeline 13 and the ball valve, and strengthen the sealing effect. The arc expansion plate 33 and the arc clamping plate 41 are staggered and installed, and the seal is fixed by double internal and external staggered extrusion, which further improves the sealing effect; the fluorine-lined ball valve can be quickly disassembled and assembled when the pipe is connected, making the installation and maintenance more convenient, facilitating the ball sweeping and pipeline maintenance of the pipeline system, and improving the sealing effect of the pipe connection, preventing leakage, avoiding waste and pollution, etc.

[0053] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A high temperature resistant fluorine lined ball valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a rotatable valve core (2) inside, connecting pipes (17) are provided on both sides of the valve body (1), expansion pads (19) are provided on the outside of the two connecting pipes (17), pipes (13) are installed on the outside ends of the two expansion pads (19), fixed pads (12) matching with the expansion pads (19) are provided on the outer surfaces of the pipes (13), extended sealing rings (14) are provided in the middle of the fixed pads (12), and multiple bolts (15) are evenly distributed on the periphery of the fixed pads (12), rotatable driving cylinders (42) are provided on the connecting pipes (17), multiple incomplete threaded seats (26) matching with the bolts (15) are provided on the expansion pads (19), and the driving cylinders (42) are provided on the connecting pipes (17). When the drive tube (42) rotates, the incomplete threaded seat (26) can be formed to move inward to lock and fix the bolt (15); the expansion pad (19) is also provided with an inner sealing ring (20) and an outer sealing ring (21) respectively matched with the extension sealing ring (14), and the inner side of the inner sealing ring (20) is provided with a plurality of arc-shaped expansion plates (33), and the outer side of the outer sealing ring (21) is provided with a plurality of arc-shaped clamping plates (41). When the drive tube (42) rotates, the plurality of arc-shaped expansion plates (33) can be formed to move outward synchronously so that the inner sealing ring (20) is closely attached to the inner wall of the extension sealing ring (14), and the plurality of arc-shaped clamping plates (41) can be moved inward so that the outer sealing ring (21) is closely attached to the outer wall of the extension sealing ring (14).

2. A high temperature resistant fluorine lined ball valve as claimed in claim 1, characterized in that: The inner wall of the upper end of the valve body (1) is rotatably connected to a transmission shaft (3), the valve core (2) is fixedly connected to the lower end of the outer surface of the transmission shaft (3), a rotatable handle (4) is hingedly connected to the upper end surface of the transmission shaft (3), and a locking mechanism that cooperates with the valve core (2) is also provided on the transmission shaft (3).

3. A high temperature resistant fluorine lined ball valve as claimed in claim 2, characterized in that: The locking mechanism comprises an inner rod (7) slidably connected to the transmission shaft (3), a short pin (6) being provided at the upper end of the inner rod (7), a key-shaped groove (60) cooperating with the short pin (6) being provided on the handle (4), a round base (8) being fixedly connected to the lower end surface of the inner rod (7), first clamping grooves being fixedly connected to the two ends of the outer surface of the round base (8), a first gear ring (10) cooperating with the first clamping tooth (9) being fixedly connected to the inner wall of the valve body (1), and a first tension spring (11) cooperating with the round base (8) being fixedly connected to the inner wall of the transmission shaft (3).

4. A high temperature resistant fluorine lined ball valve as claimed in claim 1, characterized in that: Four evenly distributed drive plates (25) are slidably connected to the expansion pads (19), and guide plates (27) are fixedly connected to both sides of the outer end surfaces of the drive plates (25). The guide plates (27) are respectively provided with second inclined grooves (29), and the incomplete thread seats (26) are respectively fixedly connected with second sliding pins (28) matching the second inclined grooves (29).

5. A high temperature resistant fluorine lined ball valve as claimed in claim 4, characterized in that: An extension rod (30) is fixedly connected to the inner end surface of the driving plate (25), a sleeve rod (31) is fixedly connected to the inner wall of the extension rod (30), and the arc-shaped expansion support plate (33) is fixedly connected to the corresponding sleeve rod (31); four evenly distributed limiting guide rods (34) are fixedly connected to the inner wall of the connecting tube (17), and four evenly distributed supporting pads (32) are fixedly connected to the inner wall of the connecting tube (17), one end of the sleeve rod (31) is slidably connected to the limiting guide rod (34), the other end of the sleeve rod (31) is slidably connected to the inner wall of the supporting pad (32), and the arc-shaped expansion support plate (33) is slidably connected to the corresponding supporting pad (32).

6. A high temperature resistant fluorine lined ball valve as claimed in claim 5, characterized in that: The driving plate (25) is also fixedly connected to an extension pin (35), and two limit bars (40) are fixedly connected to the outer end surface of the arc-shaped clamping plate (41), and the limit bars (40) are respectively slidably connected to the expansion pad (19). The expansion pad (19) is rotatably connected to a spur gear (38), and the outer surface of the spur gear (38) is meshed with a spur rack (39) fixedly connected to the limit bar (40). The spur gear (38) is also coaxially fixedly connected to a long swing rod (36), and the long swing rod (36) is respectively provided with a short key groove (37) matching the extension pin (35).

7. A high temperature resistant fluorine lined ball valve as claimed in claim 4, characterized in that: The driving cylinder (42) is rotatably connected to the end surfaces of both sides of the valve body (1), and the inner wall of the driving cylinder (42) is slidably connected to the threaded cylinder (18). The outer surface of the connecting tube (17) is provided with a thread matching the threaded cylinder (18). The threaded cylinder (18) is threadedly connected to the corresponding connecting tube (17). The outer surface of the threaded cylinder (18) is also rotatably connected to a connecting ring (59). Four evenly distributed guide seats (22) are fixedly connected to the outer surface of the connecting ring (59). The driving plate (25) is fixedly connected to a first sliding pin (24), and the guide seat (22) is provided with a first inclined groove (23) matching the first sliding pin (24).

8. A high temperature resistant fluorine lined ball valve as claimed in claim 1, characterized in that: Two centrally symmetrical U-shaped seats (48) are fixedly connected to the outer surface of the driving cylinder (42); long slide plates (45) are slidably connected to the inner walls of the U-shaped seats (48); first springs (46) matching with the long slide plates (45) are fixedly connected to the inner walls of the bottom ends of the U-shaped seats (48); movable handles (47) are fixedly connected to the outer end surfaces of the two long slide plates (45); second gear rings (43) are fixedly connected to the left and right end surfaces of the valve body (1); and second latching teeth (44) matching with the second gear rings (43) are fixedly connected to the long slide plates (45).

9. A high temperature resistant fluorine lined ball valve as claimed in claim 8, characterized in that: The inner walls of the front and rear ends of the long slide plate (45) are respectively fixedly connected with square tubes (49), the inner walls of the square tubes (49) are respectively slidably connected with anti-drop pads (51), the outer surfaces of the two anti-drop pads (51) are respectively fixedly connected with latch pins (52), the inner walls of the square tubes (49) are respectively fixedly connected with second springs (50) matching with the anti-drop pads (51), and the inner walls of the front and rear ends of the U-shaped seat (48) are respectively provided with long latch grooves (58) matching with the latch pins (52).

10. A high temperature resistant fluorine lined ball valve as claimed in claim 9, characterized in that: The inner walls of the front and rear ends of the long slide plate (45) are slidably connected to control plates (54), respectively; movable pins (55) are fixedly connected to the anti-drop pads (51), and the lower ends of the control plates (54) are respectively provided with long oblique grooves (56) and short vertical grooves (57) that match the movable pins (55); and two baffles (53) that match the corresponding control plates (54) are fixedly connected to the U-shaped seats (48).

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