Novel quick-release type discharge valve

Abstract

A novel quick-release type discharge valve comprises a valve body. A valve shaft is rotationally mounted in the valve body; the periphery of the valve shaft is sleeved with an impeller. Threads are formed on the periphery of the end part of the valve shaft; a square nut sleeve is installed on the periphery of the end of the valve shaft in a threaded mode. A tail door cover is hinged to the end of the valve body. A plurality of eyebolts are installed between the tail door cover and the valve body in a threaded mode. When dismounting is needed, the eyebolt on the tail door cover is dismounted, so that the tail door cover is separated from the valve body, the tail door cover is rotated, and the interior of the valve body is exposed; then the square nut sleeve is rotated through a wrench, the square nut sleeve is detached from the end of the valve shaft, and the impeller is taken out from the outer ring of the valve shaft in a sliding mode; therefore, the impeller is convenient to disassemble and assemble, maintenance work of workers is facilitated, and follow-up cleaning work is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of discharge valves, in particular to a novel quick-detachable discharge valve. Background Art

[0002] The discharge valve is a device used for unloading. It is mainly used at the discharge port working under negative pressure. It conveys materials through the rotating impeller and plays a sealing role to prevent air from being sucked into the discharge port during pneumatic conveying, ensuring the normal discharge of the discharger.

[0003] A patent application with publication number CN104670905A discloses a vacuum unloading valve, in which the valve is composed of a valve body, an impeller, a side cover, a valve shaft, a bearing, a screw, and a permanent magnetic material; a feed port is provided at the top of the valve body, and a discharge port is provided at the bottom; the impeller is accommodated in the valve body, and the impeller is composed of a circular port, blades, and a baffle; the upper end of the blades and baffles of the impeller has a magnetic slot inside, and the permanent magnetic material is installed and poured in the magnetic slot; the arc ends of the blades and baffles of the impeller are fully fitted with the inner wall of the valve body, the impeller and the valve shaft are fixed as a whole, the valve shaft is supported by a bearing, and one end of the valve shaft extends out of the valve body for connecting a gearbox and a motor; when in use, the motor drives the valve shaft and the impeller to rotate inside the valve body through the gearbox; the material enters the valve body from the feed port on the top of the valve body, and is then driven downward by the rotation of the impeller to be discharged from the discharge port below the valve body.

[0004] The impeller will gradually deform and wear during use, and needs to be disassembled for maintenance and replacement. However, the impeller and valve shaft of the unloading valve currently on the market are integrated, which increases the difficulty of disassembly. The process is cumbersome, labor-intensive and time-consuming, and is inconvenient for maintenance work by staff.

[0005] To this end, the present invention provides a novel quick-detachable discharge valve. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a new type of quick-release unloading valve described in the present invention includes a valve body; a valve shaft is rotatably installed inside the valve body; an impeller is sleeved on the outer periphery of the valve shaft; a thread is opened on the outer periphery of the end of the valve shaft; a square nut sleeve is threadedly installed on the outer periphery of the end of the valve shaft; a tailgate cover is hinged at the end of the valve body; a plurality of lifting eye bolts are threadedly installed between the tailgate cover and the valve body; thereby facilitating the disassembly and assembly of the impeller, facilitating maintenance work by the staff, and facilitating subsequent cleaning work.

[0008] When working, the valve shaft is located inside the valve body, and a spline sleeve is fixedly connected to the outer ring of the end away from the tailgate cover; a spline groove is provided on the inner ring of the end of the impeller away from the tailgate cover; the spline sleeve matches the spline groove; the spline groove of the inner ring of the impeller matches and engages with the spline sleeve of the outer ring of the valve shaft, so that the impeller is tightly connected to the valve shaft, so that the valve shaft can stably drive the impeller to rotate, thereby improving the stability of the discharge valve operation.

[0009] When working, a clamping unit is arranged inside the valve shaft; the clamping unit comprises a sliding hole arranged inside the valve shaft; a plurality of circular grooves are evenly arranged inside the valve shaft; a plurality of receiving grooves are arranged around the outer ring of the circular groove; a plurality of guide rails are fixed around the side of the circular groove away from the tailgate cover; a trapezoidal block is fixedly connected to a side of the slide block of the guide rail close to the tailgate cover; the inclined surface of the trapezoidal block faces the middle of the circular groove; a pair of push rods are fixedly connected to a side of the trapezoidal block close to the receiving groove; the push rods slide through the receiving groove; a concave-shaped clamping block is slidably installed inside the receiving groove; Chamfers are provided on both sides of one end of the block away from the trapezoidal block; a pair of No. 1 springs are fixedly connected between a side of the block close to the trapezoidal block and the receiving groove; the No. 1 spring is sleeved on the outer periphery of the push rod; a plurality of slots are provided around the inner ring of the impeller; the slots match the block; a transmission structure is provided inside the slide hole, and the transmission structure drives the trapezoidal block to slide along the guide rail; multiple groups of blocks are engaged with multiple groups of slots, so that the impeller and the valve shaft are fixedly connected at multiple locations; thereby improving the connection strength between the impeller and the valve shaft, and improving the stability of the rotation of the impeller and the valve shaft.

[0010] When working, the transmission structure includes a sliding rod slidably installed inside the sliding hole; the outer ring of the sliding rod is evenly fixed with multiple conical seats; the conical seats are located inside the circular groove, and the conical seats are located on the side of the block close to the tailgate cover; multiple No. 2 springs are fixed around the conical seat and the side of the circular groove close to the tailgate cover.

[0011] When working, a plurality of mounting grooves are provided around the conical surface of the conical seat away from the tailgate cover; a plurality of rollers are rotatably installed inside the mounting grooves; the mounting grooves and rollers provided on the conical seat reduce the contact resistance between the conical seat and the trapezoidal block, making it easier for the conical seat to push the trapezoidal block to slide.

[0012] During operation, a sliding sleeve is fixed to the middle part of the square nut sleeve; a push rod is slidably installed inside the sliding sleeve; a No. 3 spring is arranged on the side of the push rod close to the tailgate cover; the sliding sleeve and the push rod can be slidably inserted into the sliding hole; the elastic force of the No. 3 spring can avoid excessive pushing of the sliding rod.

[0013] When working, a locking unit is arranged inside the tailgate cover; the locking unit includes an inner cavity opened inside the tailgate cover; a rotating rod is rotatably installed on the middle part of the inner cavity; the rotating rod rotates and passes through the outer wall of the tailgate cover; a rotating ring is rotatably installed in the middle part of the inner cavity; the rotating ring is bolted to the rotating rod; a plurality of No. 1 connecting rods are rotatably installed on the outer ring of the rotating ring; a fixing ring is fixedly connected to the middle part of the inner cavity; a plurality of positioning rods are fixedly connected around the fixing ring; a straight groove is provided in the middle part of the No. 1 connecting rod; the positioning rod slides with the straight groove; a plurality of grooves are provided around the outer ring of a side of the tailgate cover close to the valve body; a top block is slidably installed inside the groove; a No. 2 connecting rod is fixedly connected to a side of the top block close to the inner cavity; the No. 2 connecting rod slides and passes through the outer wall between the groove and the inner cavity; the No. 2 connecting rod is hinged to the No. 1 connecting rod; a rubber pad is fixedly connected to a side of the top block away from the inner cavity; thereby improving the fixing strength of the tailgate cover and the valve body.

[0014] During operation, the outer ring of the inner cavity is bolted with a block; the block can block the No. 1 connecting rod; the rotation range of the No. 1 connecting rod is blocked and limited by the set block, so as to facilitate the locking unit to perform locking work.

[0015] When working, a splint is hinged on one side of the block close to the No. 1 connecting rod; a torsion spring is provided on the outer ring of the hinge rod of the splint; a rubber bag is fixedly connected between the splint and the block; the interior of the rubber bag is filled with sealing oil; a plurality of hollow sealing rings are fixedly connected to the outer ring of the tailgate cover; the rubber bag is connected to the interior of the hollow sealing ring through a hose; thereby ensuring the sealing between the tailgate cover and the valve body, and being able to perform sealing work repeatedly and effectively.

[0016] When working, rubber ring sheets are fixedly connected to both sides of the outer ring of the hollow sealing ring; the two sides of the hollow sealing ring are shielded by the arranged rubber ring sheets, which effectively avoids the leakage of sealing oil when the hollow sealing ring is damaged, and effectively improves the sealing performance between the tailgate cover and the valve body.

[0017] The beneficial effects of the present invention are as follows: 1. The novel quick-release unloading valve described in the present invention comprises a valve body, a valve shaft, an impeller, a square nut sleeve, a tailgate cover and a lifting eye bolt; when disassembly is required, the lifting eye bolt on the tailgate cover is removed to separate the tailgate cover from the valve body, and the tailgate cover is rotated to expose the interior of the valve body; then the square nut sleeve is rotated with a wrench to remove the square nut sleeve from the end of the valve shaft, and the impeller is slid out of the outer ring of the valve shaft; thereby facilitating the disassembly and assembly of the impeller, facilitating maintenance work by the staff, and facilitating subsequent cleaning work.

[0018] 2. The new quick-release unloading valve described in the present invention comprises a spline sleeve and a spline groove. The spline groove of the inner ring of the impeller is matched and engaged with the spline sleeve of the outer ring of the valve shaft, so that the impeller and the valve shaft are tightly connected, so that the valve shaft can stably drive the impeller to rotate, thereby improving the stability of the unloading valve operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is an exploded view of the present invention; Figure 3 is a first stereoscopic view of the valve shaft and the impeller in the present invention; Figure 4 is a second stereoscopic view of the valve shaft and the impeller in the present invention; Figure 5 is a cross-sectional view of the valve shaft in the present invention; Figure 6 yes Figure 5 A partial enlarged view of the middle part; Figure 7 is a cross-sectional view of the circular groove in the present invention; Figure 8 It is a three-dimensional diagram of the trapezoidal block and the cone seat in the present invention; Fig. 9 is an exploded view of the trapezoidal block of the present invention; Fig.10 It is an exploded view of the cone seat in the present invention; Fig.11 is a cross-sectional view of a square nut sleeve in the present invention; Fig.12 is a three-dimensional diagram of a tailgate cover in the present invention; Fig.13 It is the internal structure diagram of the inner cavity in the present invention; Fig.14 is a three-dimensional diagram of the locking unit in the present invention; Fig.15 yes Fig.14 A partial enlarged view of point B in the middle; Fig.16 is a cross-sectional view of the hollow sealing ring of the present invention; In the figure: 1. valve body; 2. valve shaft; 3. impeller; 4. square nut sleeve; 5. tailgate cover; 6. eyebolt; 7. spline sleeve; 8. spline groove; 9. slide hole; 10. round groove; 11. storage groove; 12. guide rail; 13. trapezoidal block; 14. push rod; 15. clamping block; 16. No. 1 spring; 17. clamping groove; 18. slide rod; 19. cone seat; 20. No. 2 spring; 21. Groove; 22. Roller; 23. Sliding sleeve; 24. Push rod; 25. Spring No. 3; 26. Inner cavity; 27. Rotating rod; 28. Rotating ring; 29. ​​Connecting rod No. 1; 30. Fixed ring; 31. Positioning rod; 32. Straight groove; 33. Groove; 34. Top block; 35. Connecting rod No. 2; 36. Stop block; 37. Clamp; 38. Rubber bag; 39. Hollow sealing ring; 40. Rubber ring piece. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figure 1 to Figure 2 As shown, a novel quick-release unloading valve according to an embodiment of the present invention comprises a valve body 1; a valve shaft 2 is rotatably mounted inside the valve body 1; an impeller 3 is sleeved on the outer periphery of the valve shaft 2; a thread is provided on the outer periphery of the end of the valve shaft 2; a square nut sleeve 4 is threadedly mounted on the outer periphery of the end of the valve shaft 2; a tailgate cover 5 is hingedly connected to the end of the valve body 1; a plurality of eyebolts 6 are threadedly mounted between the tailgate cover 5 and the valve body 1; During operation, when disassembly is required, remove the eye bolt 6 on the tailgate cover 5 to separate the tailgate cover 5 from the valve body 1, rotate the tailgate cover 5 to expose the interior of the valve body 1; then use a wrench to rotate the square nut sleeve 4, remove the square nut sleeve 4 from the end of the valve shaft 2, and slide the impeller 3 out of the outer ring of the valve shaft 2; this facilitates the disassembly and assembly of the impeller 3, facilitates the maintenance work of the staff, and facilitates the subsequent cleaning work.

[0023] like Figures 2 to 4 As shown, the valve shaft 2 is located inside the valve body 1, and a spline sleeve 7 is fixedly connected to the outer ring of the end away from the tailgate cover 5; a spline groove 8 is formed on the inner ring of the end of the impeller 3 away from the tailgate cover 5; the spline sleeve 7 matches the spline groove 8; the spline groove 8 of the inner ring of the impeller 3 matches and engages with the spline sleeve 7 of the outer ring of the valve shaft 2, so that the impeller 3 is tightly connected to the valve shaft 2, so that the valve shaft 2 can stably drive the impeller 3 to rotate, thereby improving the stability of the discharge valve operation.

[0024] like Figures 2 to 10As shown, a clamping unit is provided inside the valve shaft 2; the clamping unit includes a sliding hole 9 opened inside the valve shaft 2; a plurality of circular grooves 10 are evenly opened inside the valve shaft 2; a plurality of receiving grooves 11 are opened around the outer ring of the circular groove 10; a plurality of guide rails 12 are fixed around the side of the circular groove 10 away from the tailgate cover 5; a trapezoidal block 13 is fixed on the side of the slide block of the guide rail 12 close to the tailgate cover 5; the inclined surface of the trapezoidal block 13 faces the middle of the circular groove 10; a pair of push rods 14 are fixed on the side of the trapezoidal block 13 close to the receiving groove 11; the push rods 14 slide The receiving groove 11 is movably penetrated by the receiving groove 11; a concave-shaped card block 15 is slidably installed inside the receiving groove 11; both sides of the end of the card block 15 away from the trapezoidal block 13 are provided with chamfers; a pair of No. 1 springs 16 are fixedly connected between the side of the card block 15 close to the trapezoidal block 13 and the receiving groove 11; the No. 1 spring 16 is sleeved on the outer periphery of the push rod 14; a plurality of card slots 17 are provided around the inner ring of the impeller 3; the card slots 17 match the card block 15; a transmission structure is provided inside the sliding hole 9, and the transmission structure drives the trapezoidal block 13 to slide along the guide rail 12; The transmission structure includes a slide rod 18 slidably mounted inside the slide hole 9; a plurality of cone seats 19 are evenly fixedly connected to the outer ring of the slide rod 18; the cone seats 19 are located inside the circular groove 10, and the cone seats 19 are located on a side of the clamping block 15 close to the tailgate cover 5; a plurality of No. 2 springs 20 are fixedly connected around the cone seat 19 and a side of the circular groove 10 close to the tailgate cover 5; During operation, when replacing and installing the impeller 3, slide the impeller 3 onto the outer ring of the valve shaft 2, so that the spline groove 8 of the inner ring of the impeller 3 matches and engages with the spline sleeve 7 of the outer ring of the valve shaft 2. At this time, the receiving groove 11 of the outer ring of the valve shaft 2 is aligned with the clamping groove 17 of the inner ring of the impeller 3; then thread the square nut sleeve 4 onto the end of the valve shaft 2, and push the impeller 3 to be fixed on the outer ring of the valve shaft 2; At the same time, the square nut sleeve 4 will push the slide rod 18 to slide inside the slide hole 9, and the slide rod 18 drives the cone seat 19 to move inside the circular groove 10, so that the No. 2 spring 20 is stretched, and the conical surface of the cone seat 19 approaches and squeezes the inclined surface of the trapezoidal block 13, so that the trapezoidal block 13 slides along the guide rail 12, so that the trapezoidal block 13 moves toward the receiving groove 11, and pushes the push rod 14 to slide into the inside of the receiving groove 11. The push rod 14 pushes the block 15 to slide out from the inside of the receiving groove 11, so that the No. 1 spring 16 is stretched, and the block 15 is stuck in the groove 17 of the inner ring of the impeller 3; through the engagement of multiple groups of blocks 15 with multiple groups of grooves 17, the impeller 3 is fixedly connected to the valve shaft 2 at multiple locations; thereby improving the connection strength between the impeller 3 and the valve shaft 2, and improving the rotation stability of the impeller 3 and the valve shaft 2; When disassembling the impeller 3, the square nut sleeve 4 is removed from the end of the valve shaft 2, the squeezing of the square nut sleeve 4 on the slide rod 18 disappears, the No. 2 spring 20 shrinks and resets, driving the cone seat 19 to slide away from the trapezoidal block 13, the No. 1 spring 16 shrinks and resets, driving the clamping block 15 to disengage from the clamping groove 17, and retract into the interior of the receiving groove 11, pushing the push rod 14 and the trapezoidal block 13 to slide and reset, thereby separating the impeller 3 from the valve shaft 2, and then facilitating the disassembly of the impeller 3.

[0025] like Figures 6 to 10 As shown, the conical surface of the conical seat 19 away from the tailgate cover 5 is surrounded by a plurality of mounting grooves 21; a plurality of rollers 22 are rotatably mounted inside the mounting grooves 21; the mounting grooves 21 and the rollers 22 provided on the conical seat 19 reduce the contact resistance between the conical seat 19 and the trapezoidal block 13, making it easier for the conical seat 19 to push the trapezoidal block 13 to slide.

[0026] like Fig.11 As shown, a sliding sleeve 23 is fixedly connected to the middle of the square nut sleeve 4; a push rod 24 is slidably installed inside the sliding sleeve 23; a third spring 25 is arranged on the side of the push rod 24 close to the tailgate cover 5; the sliding sleeve 23 and the push rod 24 can be slidably inserted into the sliding hole 9; During operation, when the square nut sleeve 4 is threadedly installed to the end of the valve shaft 2, the square nut sleeve 4 pushes the sliding sleeve 23 and the push rod 24 to insert into the sliding hole 9, and the push rod 24 pushes the sliding rod 18 to slide inside the sliding hole 9. At the same time, the elastic force of the No. 3 spring 25 avoids excessive pushing of the sliding rod 18.

[0027] like Figures 12 to 15 As shown, a locking unit is provided inside the tailgate cover 5; the locking unit includes an inner cavity 26 opened inside the tailgate cover 5; a rotating rod 27 is rotatably installed in the middle of the inner cavity 26; the rotating rod 27 rotates and penetrates the outer wall of the tailgate cover 5; a rotating ring 28 is rotatably installed in the middle of the inner cavity 26; the rotating ring 28 is bolted to the rotating rod 27; a plurality of No. 1 connecting rods 29 are rotatably installed on the outer ring of the rotating ring 28; a fixing ring 30 is fixedly connected to the middle of the inner cavity 26; a plurality of positioning rods 31 are fixedly connected around the fixing ring 30; A straight groove 32 is provided in the middle of the No. 1 connecting rod 29; the positioning rod 31 is slidably matched with the straight groove 32; a plurality of grooves 33 are provided around the outer ring of the tailgate cover 5 close to the valve body 1; a top block 34 is slidably installed inside the groove 33; a No. 2 connecting rod 35 is fixedly connected to a side of the top block 34 close to the inner cavity 26; the No. 2 connecting rod 35 slides through the outer wall between the groove 33 and the inner cavity 26; the No. 2 connecting rod 35 is hinged to the No. 1 connecting rod 29; a rubber pad is fixedly connected to a side of the top block 34 away from the inner cavity 26; During operation, after the tailgate cover 5 and the valve body 1 are locked and fixed by the eyebolt 6, the rotating rod 27 is rotated to drive the rotating ring 28 to rotate, and the No. 1 connecting rod 29 to rotate. Since the positioning rod 31 on the fixing ring 30 is located in the straight groove 32 on the No. 1 connecting rod 29, one end of the No. 1 connecting rod 29 rotates with the rotating ring 28, and the other end moves toward the outer ring of the tailgate cover 5, pushing the No. 2 connecting rod 35 to slide toward the inside of the groove 33, pushing the top block 34 to squeeze the inside of the valve body 1, and the tailgate cover 5 and the valve body 1 are tightly fixed, thereby improving the fixing strength of the tailgate cover 5 and the valve body 1; During disassembly, the rotating rod 27 is rotated in the opposite direction, and through the cooperation of the rotating ring 28, the No. 1 connecting rod 29, the positioning rod 31 and the straight groove 32, the No. 2 connecting rod 35 is driven to slide toward the inside of the inner cavity 26, and the top block 34 is retracted into the groove 33, so that the top block 34 is separated from the inner wall of the valve body 1, and the tailgate cover 5 is separated from the valve body 1.

[0028] like Figures 13 to 15 As shown, the outer ring of the inner cavity 26 is bolted with a stopper 36; the stopper 36 can block the No. 1 connecting rod 29; the rotation range of the No. 1 connecting rod 29 is blocked and limited by the set stopper 36, so as to facilitate the locking work of the locking unit.

[0029] like Figures 12 to 16 As shown, a clamping plate 37 is hingedly connected to the side of the stopper 36 close to the No. 1 connecting rod 29; a torsion spring is arranged on the outer ring of the hinge rod of the clamping plate 37; a rubber bag 38 is fixedly connected between the clamping plate 37 and the stopper 36; the inside of the rubber bag 38 is filled with sealing oil; a plurality of hollow sealing rings 39 are fixedly connected to the outer ring of the tailgate cover 5; the rubber bag 38 is connected to the inside of the hollow sealing ring 39 through a hose; During operation, when the No. 1 connecting rod 29 rotates, the clamping plate 37 is pushed to rotate toward the stopper 36, and the clamping plate 27 cooperates with the stopper 36 to squeeze the rubber bag 38, and squeezes the sealing oil inside the rubber bag 38 into the inside of the hollow sealing ring 39, so that the hollow sealing ring 39 expands toward the outer ring, so that the hollow sealing ring 39 blocks and seals the gap between the tailgate cover 5 and the valve body 1, thereby ensuring the sealing between the tailgate cover 5 and the valve body 1; During disassembly, the No. 1 connecting rod 29 rotates in the opposite direction, so that the clamping plate 37 is reset under the drive of the torsion spring, pulling the rubber bag 38 to stretch and reset, and drawing the sealing oil inside the hollow sealing ring 39 back into the rubber bag 38, so that the hollow sealing ring 39 shrinks, causing the hollow sealing ring 39 to separate from the valve body 1, thereby facilitating the opening of the tailgate cover 5 and enabling the sealing work to be repeatedly and effectively performed.

[0030] like Fig.16As shown, rubber ring sheets 40 are fixedly connected to both sides of the outer ring of the hollow sealing ring 39; the two sides of the hollow sealing ring 39 are shielded by the rubber ring sheets 40, which effectively avoids the leakage of sealing oil when the hollow sealing ring 39 is damaged, and effectively improves the sealing performance between the tailgate cover 5 and the valve body 1.

[0031] Working principle: During installation, slide the impeller 3 onto the outer ring of the valve shaft 2, so that the spline groove 8 of the inner ring of the impeller 3 matches and engages with the spline sleeve 7 of the outer ring of the valve shaft 2. At this time, the receiving groove 11 of the outer ring of the valve shaft 2 is aligned with the clamping groove 17 of the inner ring of the impeller 3; then thread the square nut sleeve 4 onto the end of the valve shaft 2, and push the impeller 3 to fix it on the outer ring of the valve shaft 2; The square nut sleeve 4 pushes the sliding sleeve 23 and the push rod 24 to insert into the sliding hole 9, and the push rod 24 pushes the sliding rod 18 to slide inside the sliding hole 9, and the sliding rod 18 drives the cone seat 19 to move inside the circular groove 10, so that the second spring 20 is stretched, and the conical surface of the cone seat 19 approaches and squeezes the inclined surface of the trapezoidal block 13, so that the trapezoidal block 13 slides along the guide rail 12, so that the trapezoidal block 13 moves toward the receiving groove 11, and pushes the push rod 14 to slide into the inside of the receiving groove 11, and the push rod 14 pushes the block 15 to slide out from the inside of the receiving groove 11, so that the first spring 16 is stretched, and the block 15 is stuck in the inside of the slot 17 of the inner ring of the impeller 3; through the engagement of multiple groups of blocks 15 with multiple groups of slots 17, the impeller 3 is fixedly connected to the valve shaft 2 at multiple locations; After the tailgate cover 5 and the valve body 1 are locked and fixed by the eyebolt 6, the rotating rod 27 is rotated to drive the rotating ring 28 to rotate, and the No. 1 connecting rod 29 is driven to rotate. Since the positioning rod 31 on the fixing ring 30 is located in the straight groove 32 on the No. 1 connecting rod 29, one end of the No. 1 connecting rod 29 rotates with the rotating ring 28, and the other end moves toward the outer ring of the tailgate cover 5, pushing the No. 2 connecting rod 35 to slide toward the inside of the groove 33, pushing the top block 34 to squeeze the inside of the valve body 1, and the tailgate cover 5 and the valve body 1 are tightly fixed; at the same time, when the No. 1 connecting rod 29 rotates, it pushes the clamping plate 37 to rotate toward the stopper 36, and the clamping plate 27 cooperates with the stopper 36 to squeeze the rubber bag 38, and squeezes the sealing oil inside the rubber bag 38 into the inside of the hollow sealing ring 39, so that the hollow sealing ring 39 expands toward the outer ring, so that the hollow sealing ring 39 blocks and seals the gap between the tailgate cover 5 and the valve body 1; During disassembly, the rotating rod 27 is rotated in the opposite direction, and the No. 2 connecting rod 35 is driven to slide toward the inside of the inner cavity 26 through the cooperation of the rotating ring 28, the No. 1 connecting rod 29, the positioning rod 31 and the straight groove 32, so as to drive the top block 34 to retract into the groove 33, so that the top block 34 is separated from the inner wall of the valve body 1; at the same time, the No. 1 connecting rod 29 is rotated in the opposite direction, so that the clamping plate 37 is reset under the drive of the torsion spring, and the rubber bag 38 is pulled to stretch and reset, and the sealing oil inside the hollow sealing ring 39 is drawn back into the rubber bag 38, so that the hollow sealing ring 39 shrinks, causing the hollow sealing ring 39 to be separated from the valve body 1; Remove the eyebolt 6 on the tailgate cover 5 to separate the tailgate cover 5 from the valve body 1, and rotate the tailgate cover 5 to expose the interior of the valve body 1; then use a wrench to rotate the square nut sleeve 4 to remove the square nut sleeve 4 from the end of the valve shaft 2; The squeezing of the square nut sleeve 4 on the sliding rod 18 disappears, the No. 2 spring 20 shrinks and resets, driving the conical seat 19 to slide away from the trapezoidal block 13, and the No. 1 spring 16 shrinks and resets, driving the clamping block 15 to disengage from the clamping groove 17 and retract into the interior of the receiving groove 11, pushing the push rod 14 and the trapezoidal block 13 to slide and reset, so that the impeller 3 is separated from the valve shaft 2; the impeller 3 is slid out of the outer ring of the valve shaft 2; thereby facilitating the disassembly and assembly of the impeller 3, facilitating the maintenance work of the staff, and facilitating the subsequent cleaning work.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new type of quick-release discharge valve, characterized in that: The invention comprises a valve body (1); a valve shaft (2) is rotatably mounted inside the valve body (1); an impeller (3) is sleeved on the outer periphery of the valve shaft (2); a thread is provided on the outer periphery of the end of the valve shaft (2); a square nut sleeve (4) is threadedly mounted on the outer periphery of the end of the valve shaft (2); a tailgate cover (5) is hingedly connected to the end of the valve body (1); and a plurality of eyebolts (6) are threadedly mounted between the tailgate cover (5) and the valve body (1).

2. A novel quick-release discharge valve according to claim 1, characterized in that: The valve shaft (2) is located inside the valve body (1), and a spline sleeve (7) is fixedly connected to the outer ring of one end away from the tailgate cover (5); a spline groove (8) is formed on the inner ring of one end of the impeller (3) away from the tailgate cover (5); and the spline sleeve (7) matches the spline groove (8).

3. A novel quick-release discharge valve according to claim 1, characterized in that: A clamping unit is provided inside the valve shaft (2); the clamping unit comprises a sliding hole (9) provided inside the valve shaft (2); a plurality of circular grooves (10) are uniformly provided inside the valve shaft (2); a plurality of receiving grooves (11) are provided around the outer ring of the circular groove (10); a plurality of guide rails (12) are fixedly connected around the side of the circular groove (10) away from the tailgate cover (5); a trapezoidal block (13) is fixedly connected to a side of the slide block of the guide rail (12) close to the tailgate cover (5); an inclined surface of the trapezoidal block (13) faces the middle of the circular groove (10); a pair of push rods (14) are fixedly connected to a side of the trapezoidal block (13) close to the receiving groove (11); the push rods (14) slide The receiving groove (11) is movably penetrated by the receiving groove (11); a concave-shaped clamping block (15) is slidably installed inside the receiving groove (11); both sides of the end of the clamping block (15) away from the trapezoidal block (13) are provided with chamfers; a pair of No. 1 springs (16) are fixedly connected between a surface of the clamping block (15) close to the trapezoidal block (13) and the receiving groove (11); the No. 1 spring (16) is sleeved on the outer periphery of the push rod (14); a plurality of clamping grooves (17) are provided around the inner ring of the impeller (3); the clamping grooves (17) match the clamping block (15); a transmission structure is provided inside the sliding hole (9), and the transmission structure drives the trapezoidal block (13) to slide along the guide rail (12).

4. A novel quick-release discharge valve according to claim 3, characterized in that: The transmission structure comprises a slide rod (18) slidably mounted inside the slide hole (9); a plurality of cone seats (19) are evenly fixedly connected to the outer ring of the slide rod (18); the cone seats (19) are located inside the circular groove (10), and the cone seats (19) are located on a side of the clamping block (15) close to the tailgate cover (5); a plurality of No. 2 springs (20) are fixedly connected around the cone seat (19) and a side of the circular groove (10) close to the tailgate cover (5).

5. A novel quick-release discharge valve according to claim 4, characterized in that: A plurality of mounting grooves (21) are formed around the conical surface of the conical seat (19) away from the tailgate cover (5); a plurality of rollers (22) are rotatably mounted inside the mounting grooves (21).

6. A novel quick-release discharge valve according to claim 4, characterized in that: A sliding sleeve (23) is fixedly connected to the middle of the square nut sleeve (4); a push rod (24) is slidably mounted inside the sliding sleeve (23); a No. 3 spring (25) is arranged on a side of the push rod (24) close to the tailgate cover (5); the sliding sleeve (23) and the push rod (24) can be slidably inserted into the sliding hole (9).

7. A novel quick-release discharge valve according to claim 1, characterized in that: A locking unit is provided inside the tailgate cover (5); the locking unit comprises an inner cavity (26) opened inside the tailgate cover (5); a rotating rod (27) is rotatably mounted in the middle of the inner cavity (26); the rotating rod (27) rotatably penetrates the outer wall of the tailgate cover (5); a rotating ring (28) is rotatably mounted in the middle of the inner cavity (26); the rotating ring (28) is bolted to the rotating rod (27); a plurality of No. 1 connecting rods (29) are rotatably mounted on the outer ring of the rotating ring (28); a fixing ring (30) is fixedly connected to the middle of the inner cavity (26); a plurality of positioning rods (31) are fixedly connected around the fixing ring (30); the No. 1 connecting rod (29) is rotatably mounted on the outer ring of the rotating ring (28); a fixing ring (30) is fixedly connected to the middle of the inner cavity (26); a plurality of positioning rods (31) are fixedly connected around the fixing ring (30); the No. 1 connecting rod (29) is rotatably mounted on the outer ring of the rotating ring (28); a plurality of positioning rods (31) are fixedly connected to ... the plurality of positioning rods A straight groove (32) is provided in the middle of the rod (29); the positioning rod (31) is slidably matched with the straight groove (32); a plurality of grooves (33) are provided around the outer ring of a side of the tailgate cover (5) close to the valve body (1); a top block (34) is slidably mounted inside the groove (33); a second connecting rod (35) is fixedly connected to a side of the top block (34) close to the inner cavity (26); the second connecting rod (35) slidably penetrates the outer wall between the groove (33) and the inner cavity (26); the second connecting rod (35) is hinged to the first connecting rod (29); and a rubber pad is fixedly connected to a side of the top block (34) away from the inner cavity (26).

8. A novel quick-release discharge valve according to claim 7, characterized in that: The outer ring of the inner cavity (26) is bolted with a stopper (36); the stopper (36) is capable of blocking the No. 1 connecting rod (29).

9. A novel quick-release discharge valve according to claim 8, characterized in that: A clamping plate (37) is hingedly connected to one side of the stopper (36) close to the No. 1 connecting rod (29); a torsion spring is arranged on the outer ring of the hinge rod of the clamping plate (37); a rubber bag (38) is fixedly connected between the clamping plate (37) and the stopper (36); the interior of the rubber bag (38) is filled with sealing oil; a plurality of hollow sealing rings (39) are fixedly connected to the outer ring of the tailgate cover (5); the rubber bag (38) is connected to the interior of the hollow sealing ring (39) through a hose.

10. A novel quick-release discharge valve according to claim 9, characterized in that: Rubber ring sheets (40) are fixedly connected to both sides of the outer ring of the hollow sealing ring (39).

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