Storage hopper rotary valve feedback device

Abstract

The invention belongs to the technical field of acetylene storage, and particularly relates to a storage hopper rotary valve feedback device which comprises a back panel, and a plurality of vertical plates are fixedly arranged on the front face of the back panel; the front panel is fixedly arranged on the front surfaces of the vertical plates; the folding mechanism is movably arranged in a gap between the back panel and the front panel; the clamping mechanism is movably arranged in the gap between the back panel and the front panel; the folding mechanism comprises a plurality of corner plates which are movably arranged in a gap between the back panel and the front panel. The positions of the multiple metal ends can be detected through the positions of the multiple proximity switches, the positions of the multiple proximity switches can be synchronously adjusted according to the positions of the three metal ends, the positions of the three metal ends can be accurately detected, and then the rotating angle of the power output end is detected according to the positions of the three metal ends. The method has the advantage of accurate detection.

Description

Technical Field

[0001] This invention relates to the field of acetylene storage technology, and more particularly to a feedback device for a storage hopper rotary valve. Background Technology

[0002] Acetylene needs to be stored in a storage tank. A rotary valve is installed at the discharge port of the storage tank. The rotary valve controls the flow of the raw material, and the feedback device detects the angle of the power output end of the rotary valve. In existing technology, a metal rod is fixed to the power output end of a rotary valve, and the position of the metal rod is detected by a proximity switch. The rotation angle of the power output end is determined based on the position of the metal rod. However, the length of the metal rod cannot be adjusted, nor can the positions of multiple proximity switches be adjusted based on the length of the metal rod. Furthermore, the position of the metal rod cannot be accurately detected, thus hindering the accurate determination of the angle of the power output end. Therefore, there is an urgent need to provide a feedback device for a storage hopper rotary valve. Summary of the Invention

[0003] Based on the technical problems in the background art, the present invention proposes a feedback device for a storage hopper rotary valve.

[0004] This invention proposes a feedback device for a storage hopper rotary valve, comprising: a back panel, on the front of which multiple vertical plates are fixedly disposed; a front panel, fixedly disposed on the front of the multiple vertical plates; a retracting mechanism, movably disposed in the gap between the back panel and the front panel; and a clamping mechanism, movably disposed in the gap between the back panel and the front panel. The retracting mechanism includes: a corner plate, multiple corner plates movably disposed in the gap between the back panel and the front panel; a short rotating rod and a short cylindrical column, the short rotating rod and the short cylindrical column being rotatably disposed through the corner plate via a rotating component; a threaded rod and a threaded cylinder, one end of the threaded rod and the threaded cylinder being respectively fixedly disposed at one end of the short rotating rod and the short cylindrical column; two proximity switches, two proximity switches being fixedly disposed through the corner plate; and a driving wheel and a driven wheel, the driving wheel and the driven wheel being respectively fixedly disposed at the other end of the short rotating rod and the short cylindrical column.

[0005] Preferably, two vertical plates are fixedly disposed on the surface of the vertical plate, and a support plate is fixedly disposed at the bottom of the two vertical plates. Multiple sliding frames are fixedly disposed on the surfaces of the back panel and the front panel. Sliding strips are fixedly disposed on both sides of the inner wall of the sliding frame, and a sliding plate is slidably disposed in the middle of the sliding frame.

[0006] Preferably, the gathering mechanism further includes: prism rods, one end of which is fixedly disposed between the driving wheel and the driven wheel; prism cylinders, which are threadedly sleeved on the other end of the prism rods; driving rods and driven rods, one end of which is fixedly disposed at the end of the multiple prism cylinders; and rotating frames, at least two of which are fixedly sleeved on the other end of the driving rods.

[0007] Preferably, the clamping mechanism includes: clamping blocks, multiple clamping blocks being movably disposed on the front side of the back panel; friction plates, multiple friction plates being fixedly disposed on the surfaces of the multiple clamping blocks; semi-screws, one end of two semi-screws being fixedly disposed on the surface of the clamping blocks; semi-screws, the semi-screws being integrally formed and fixedly disposed on the inner side of the other end of the semi-screws; pins, pins being fixedly disposed on the surfaces of the clamping blocks and the semi-screws; and pin holes, pin holes being opened on the surfaces of the clamping blocks and the semi-screws.

[0008] Preferably, the clamping mechanism further includes: a rotating frame, one end of which is fixedly disposed in the middle of the clamping block; an adjusting rod, the adjusting rod being threaded through the other end of the rotating frame; a friction rod, the friction rod being integrally formed and fixedly disposed in one end of the adjusting rod; a metal end, the metal end being integrally formed and fixedly disposed in the other end of the adjusting rod; a cylindrical tube, the cylindrical tube being threadedly sleeved on the ends of the two half-screws; and side rods, a plurality of side rods being fixedly disposed on the surface of the cylindrical tube.

[0009] Preferably, the side of the sliding plate is rotatably fixed to the side of the driving rod via a rotating component. The two sides of the sliding plate are provided with sliding grooves. The sliding strip is matched with the sliding grooves of the sliding plate. The axes of the driving wheel and the driven wheel are kept perpendicular, and the sides of the driving wheel and the driven wheel are kept engaged.

[0010] Preferably, the other end of the threaded rod is threaded into the other end of the threaded cylinder, and four threaded rods are arranged around the front of the back panel, and four threaded cylinders are arranged around the front of the back panel. The threaded cylinders and corner plates are kept perpendicular, and the threaded rods and corner plates are kept perpendicular.

[0011] Preferably, the prism tube has a prism hole in the middle opening that matches the prism rod, four sliding frames are arranged around the front of the back panel, a sliding plate is slidably arranged in the middle of the sliding frame, and a vertical plate is arranged around the front of the back panel.

[0012] Preferably, the clamping block is arc-shaped, and multiple clamping blocks are arranged around the power output end of the rotary valve. Multiple cylindrical tubes are arranged around the periphery of the multiple clamping blocks. Two half-screws form a threaded column that is threadedly embedded in the middle of the cylindrical tube, and the cylindrical tube is sleeved in the middle of the two half-screws.

[0013] Preferably, the friction rod is located in the middle of the rotating frame, multiple rotating frames and multiple cylindrical tubes are spaced apart, multiple metal ends are arranged around the middle of the four threaded rods, and a circular notch is provided in the middle opening of the front panel.

[0014] The beneficial effects of this invention are as follows: two threaded rods and two threaded cylinders rotate simultaneously, the two threaded rods move in the middle of two of the threaded cylinders respectively, and the two threaded cylinders move along the axial direction of the other two threaded rods. The four threaded rods and four threaded cylinders drive the four corner plates to move closer or further away from each other, which can synchronously adjust the position of multiple proximity switches, so that the position of multiple proximity switches can detect the position of multiple metal ends. The position of multiple proximity switches can be synchronously adjusted according to the position of three metal ends, and the position of three metal ends can be accurately detected. Then, the rotation angle of the power output end can be detected according to the position of three metal ends, which has the advantage of accurate detection. The adjusting rod rotates along its axis and moves at the end of the rotating frame, which can adjust the position of the metal end between multiple proximity switches. The axial distance between the metal end and the power output end can be adjusted as needed, and the detection accuracy of the power output end can be adjusted according to various rotary valves. It is very convenient to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a storage hopper rotary valve feedback device proposed in this invention; Figure 2 This is a schematic diagram of the back of the overall structure of a storage hopper rotary valve feedback device proposed in this invention; Figure 3 This is a front view of the back panel structure of a storage hopper rotary valve feedback device proposed in this invention. Figure 4 This is a schematic cross-sectional view of the gathering mechanism of a storage hopper rotary valve feedback device proposed in this invention; Figure 5 This is a schematic diagram of the retraction mechanism structure of a storage hopper rotary valve feedback device proposed in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the retraction mechanism structure of a storage hopper rotary valve feedback device proposed in this invention. Figure 2 ; Figure 7 This is a schematic diagram of the corner plate structure of a storage hopper rotary valve feedback device proposed in this invention; Figure 8 This is a schematic diagram of the clamping mechanism structure of a storage hopper rotary valve feedback device proposed in this invention; Figure 9 This is a disassembly diagram of the clamping mechanism of a storage hopper rotary valve feedback device proposed in this invention; Figure 10 This is a schematic diagram of the clamping block structure of a storage hopper rotary valve feedback device proposed in this invention.

[0016] In the diagram: Back panel 1, Vertical plate 11, Front panel 12, Vertical plate 13, Support plate 14, Sliding frame 15, Sliding bar 16, Sliding plate 17, Corner plate 2, Support component 1 21, Support component 2 22, Short rotating rod 23, Short cylindrical column 24, Threaded rod 25, Threaded cylinder 26, Proximity switch 27, Driving wheel 28, Driven wheel 29, Prismatic rod 210, Prismatic cylinder 211, Driving rod 212, Driven rod 213, Rotating frame 214, Clamping block 3, Friction plate 31, Half-screw cylinder 32, Half-screw 33, Pin rod 34, Pin hole 35, Rotating frame 36, Adjusting rod 37, Friction rod 38, Metal end 39, Cylindrical cylinder 310, Side rod 311. Detailed Implementation

[0017] Reference Figures 1 to 10 A feedback device for a rotary valve of a storage hopper includes: a back panel 1, on the front of which a plurality of vertical plates 11 are fixedly disposed; a front panel 12, fixedly disposed on the front of the plurality of vertical plates 11, and fixedly disposed on the front of the back panel 1 via the vertical plates 11; a retracting mechanism, movably disposed in the gap between the back panel 1 and the front panel 12, the retracting mechanism being adjustable in size within the gap between the back panel 1 and the front panel 12, the retracting mechanism detecting the rotation angle of the clamping mechanism; and a clamping mechanism, movably disposed in the gap between the back panel 1 and the front panel 12, the clamping mechanism being used to clamp the power output end B of the rotary valve A, the clamping mechanism rotating synchronously with the power output end B.

[0018] In this invention, the folding mechanism includes: corner plates 2, multiple corner plates 2 being movably disposed in the gap between the back panel 1 and the front panel 12; short rotating rods 23 and short cylindrical columns 24, the short rotating rods 23 and short cylindrical columns 24 being rotatably disposed through the corner plates 2 via rotating components, the rotating components being support members 21, two support members 21 being disposed through the corner plates 2, the short rotating rods 23 and short cylindrical columns 24 being disposed between the two support members 21 respectively, the two support members 21 being roller bearings that can be obtained by purchasing from the market or by private customization, so that the short rotating rods 23 and short cylindrical columns 24 are rotatably disposed through the corner plates 2.

[0019] In this invention, a threaded rod 25 and a threaded cylinder 26 are respectively fixed at one end of a short rotating rod 23 and a short cylindrical column 24. The threaded cylinder 26 rotates and moves along the axial direction of the threaded rod 25. Two proximity switches 27 are fixedly installed in the corner plate 2. The proximity switches 27 are position switches that can be purchased from the market or customized. The proximity switches 27 detect the positions of multiple metal ends 39 and detect the rotation angle of the power output end B by detecting the positions of the multiple metal ends 39. A drive wheel 28 and a driven wheel 29 are respectively fixed at the other end of the short rotating rod 23 and the short cylindrical column 24. The drive wheel 28 and the driven wheel 29 are bevel gears. The axial directions of the drive wheel 28 and the driven wheel 29 are kept perpendicular so that the sides of the drive wheel 28 and the driven wheel 29 can be engaged.

[0020] In this invention, two vertical plates 13 are fixedly disposed on the surface of the vertical plate 11, and a support plate 14 is fixedly disposed at the bottom of the two vertical plates 13. The support plate 14 is used to support the back panel 1 and the front panel 12. Multiple sliding frames 15 are fixedly disposed on the surface of both the back panel 1 and the front panel 12. Sliding strips 16 are fixedly disposed on both sides of the inner wall of the sliding frame 15. A sliding plate 17 is slidably disposed in the middle of the sliding frame 15. The sliding plate 17 can slide in the middle of the sliding frame 15. The sliding strips 16 limit the sliding plate 17, and the sliding plate 17 slides smoothly in the middle of the sliding frame 15.

[0021] In this invention, the gathering mechanism further includes: prism rods 210, one end of four prism rods 210 being fixedly disposed between two driving wheels 28 and two driven wheels 29; prism cylinders 211, multiple prism cylinders 211 being threadedly sleeved on the other end of the prism rods 210, and the prism rods 210 being movable in the middle of the prism cylinders 211; driving rods 212 and driven rods 213, one end of the driving rods 212 and driven rods 213 being fixedly disposed at the end of multiple prism cylinders 211, and the driving rods 212 and driven rods 213 passing through the middle of the second support member 22, so that the driving rods 212 and driven rods 213 are rotatably disposed on the side of the sliding plate 17 through the second support member 22; and rotating frames 214, at least two rotating frames 214 being fixedly sleeved on the other end of the driving rods 212.

[0022] In this invention, the clamping mechanism includes: clamping blocks 3, multiple clamping blocks 3 are movably disposed on the front side of the back panel 1, and multiple clamping blocks 3 surround the periphery of the power output end B; friction plates 31, multiple friction plates 31 are respectively fixedly disposed on the surface of multiple clamping blocks 3, the friction plates 31 are located in the gap between the clamping blocks 3 and the power output end B, increasing the friction between the clamping blocks 3 and the power output end B, and the multiple clamping blocks 3 are firmly clamped on the power output end B, so that the multiple clamping blocks 3 rotate synchronously with the power output end B.

[0023] In this invention, two semi-screw cylinders 32 are fixedly mounted at one end to the surface of the clamping block 3, and their planes fit together to form a threaded sleeve; two semi-screws 33 are integrally formed and fixedly mounted on the inner side of the other end of the semi-screw cylinder 32, and their planes fit together to form a threaded column; a pin 34 is fixedly mounted on the surface of the clamping block 3 and the semi-screw cylinders 32; a pin hole 35 is opened on the surface of the clamping block 3 and the semi-screw cylinders 32, and the pin 34 of the clamping block 3 is inserted into the pin hole 35 of the clamping block 3, and the pin 34 of the semi-screw cylinder 32 is inserted into the pin hole 35 of the semi-screw cylinder 32, so that multiple clamping blocks 3 and multiple semi-screw cylinders 32 can be fixedly mounted around the power output end B.

[0024] In this invention, the clamping mechanism further includes: a rotating frame 36, one end of which is fixedly disposed in the middle of the clamping block 3; an adjusting rod 37, which is threaded through the other end of the rotating frame 36; a friction rod 38, which is integrally formed and fixedly disposed at one end of the adjusting rod 37; a metal end 39, which is integrally formed and fixedly disposed at the other end of the adjusting rod 37, and the metal end 39 rotates around the power output end B, and the positions of the multiple metal ends 39 are detected by multiple proximity switches 27; a cylindrical cylinder 310, which is threadedly sleeved on the ends of the two half-screws 33, and the cylindrical cylinder 310 is sleeved on the threaded column formed by the two half-screws 33, and the cylindrical cylinder 310 can rotate to be threadedly sleeved on the threaded column, fixing the two half-screws 33 and the two half-cylinders 32; and side rods 311, multiple side rods 311 are fixedly disposed on the surface of the cylindrical cylinder 310.

[0025] In this invention, the side of the sliding plate 17 is rotatably fixed to the side of the driving rod 212 via a rotating member. The sliding plate 17 has sliding grooves on both sides. The sliding bar 16 is matched with the sliding grooves of the sliding plate 17. The axes of the driving wheel 28 and the driven wheel 29 are kept perpendicular. The sides of the driving wheel 28 and the driven wheel 29 are engaged. The other end of the threaded rod 25 is threadedly embedded in the other end of the threaded cylinder 26. The four threaded rods 25 are arranged around the front of the back panel 1. The four threaded cylinders 26 are arranged around the front of the back panel 1. The threaded cylinders 26 and the corner plate 2 are kept perpendicular. The threaded rods 25 and the corner plate 2 are kept perpendicular. The four threaded rods 25 rotate so that they move simultaneously in the middle of the four threaded cylinders 26, so that the four threaded rods 25 retract synchronously, causing the four corner plates 2 to move closer synchronously, thereby causing multiple proximity switches 27 to move closer synchronously, so that the positions of the multiple proximity switches 27 are matched with the positions of multiple metal ends 39. The multiple proximity switches 27 can detect the positions of multiple metal ends 39.

[0026] In this invention, the prism tube 211 has a prism hole in the middle opening that matches the prism rod 210. The prism rod 210 is hexagonal, so that the prism rod 210 can rotate synchronously when moving in the prism hole of the prism tube 211. The active rod 212, the prism rod 210 and the prism tube 211 rotate synchronously. Four sliding frames 15 are arranged around the front of the back panel 1. The sliding plate 17 is slidably arranged in the middle of the sliding frame 15. The vertical plate 11 is arranged around the front of the back panel 1.

[0027] In this invention, the clamping block 3 is arc-shaped, and multiple clamping blocks 3 are arranged around the power output end B of the rotary valve A. Multiple cylindrical cylinders 310 are arranged around the periphery of the multiple clamping blocks 3. Two half-screws 33 form a threaded column that is threadedly embedded in the middle of the cylindrical cylinder 310. The cylindrical cylinder 310 is sleeved in the middle of the two half-screws 32. The friction rod 38 is located in the middle of the rotating frame 36. Multiple rotating frames 36 and multiple cylindrical cylinders 310 are arranged at intervals. Multiple metal ends 39 are arranged around the middle of the four threaded rods 25. The central opening of the front panel 12 is provided with a circular notch.

[0028] In use, firstly, the back panel 1 and the front panel 12 are fitted onto the power output end B of the rotary valve A, so that the power output end B of the rotary valve A passes through the middle of the back panel 1. Then, multiple clamping blocks 3 are fitted around the power output end. The pins 34 on the surfaces of the clamping blocks 3 and the semi-screws 32 are inserted into the pin holes 35, so that the multiple clamping blocks 3 and the multiple semi-screws 32 are stably fitted together. The three clamping blocks 3 are clamped around the periphery of the power output end B, and the friction plates 31 on the surface of the clamping blocks 3 are in close contact with the surface of the power output end B. The cylindrical tube 310 is threaded onto the threaded post composed of two half-screws 33, fixing the two half-screws 33 together and keeping the two half-screw tubes 32 fixed. The cylindrical tube 310 then holds all six half-screw tubes 32 in place, clamping the three clamping blocks 3 onto the power output end B. The three clamping blocks 3, rotating frame 36, adjusting rod 37, friction rod 38, and three metal ends 39 rotate synchronously. Simultaneously, the friction rod 38 can be rotated, causing the adjusting rod 37 to rotate at the end of the rotating frame 36. The adjusting rod 37 moves along... Its axial reciprocating movement adjusts the axial distance between the three metal ends 39 and the power output end B. Then, both hands simultaneously push the rotating frame 214, causing the two active rods 212 to rotate simultaneously, the two prism cylinders 211 and the two prism rods 210 to rotate simultaneously, the active wheel 28 and the driven wheel 29 to rotate simultaneously, and the two threaded rods 25 to rotate in the middle of the two threaded cylinders 26. The two threaded rods 25 move in the middle of the two threaded cylinders 26. At the same time, when the active wheel 28 and the driven wheel 29 rotate, they drive another active wheel 28 and another driven wheel 29 to rotate. The other active wheel 28 and the other driven wheel 29 drive the two threaded cylinders 26 to rotate. The rotation of the threaded cylinders 26 causes them to move along the axial direction of the threaded rods 25. The four threaded rods 25 move synchronously in the middle of the four threaded cylinders 26. The four threaded rods 25 and the four threaded cylinders 26 drive the four corner plates 2 to move synchronously closer. When the four corner plates 2 move synchronously, they drive multiple proximity switches 27 to move synchronously closer. The positions of the four corner plates 2 are mutually supported as shown in the attached instruction manual. Figure 5 As shown, the positions of multiple proximity switches 27 are matched with the positions of three metal terminals 39. The positions of the three metal terminals 39 are detected by the positions of multiple proximity switches 27. The angle of the power output terminal B can be located based on the positions of the three metal terminals 39, and the angle of the power output terminal B can be located at any time.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A hopper rotary valve feedback device characterized by: The utility model relates to a kind of folding mechanism and clamping mechanism of vertical panel. Back panel (1), the front of back panel (1) is fixedly provided with multiple vertical plates (11); Front panel (12), front panel (12) is fixedly provided on the front of multiple vertical plates (11); Folding mechanism, folding mechanism movably arranged in the gap between back panel (1) and front panel (12); Clamping mechanism, clamping mechanism movably arranged in the gap between back panel (1) and front panel (12); Folding mechanism includes: Corner plate (2), multiple corner plates (2) movably arranged in the gap between back panel (1) and front panel (12); Short rotary lever (23) and short cylinder (24), short rotary lever (23) and short cylinder (24) are rotatably penetrated in corner plate (2) by rotating piece; Threaded rod (25) and threaded cylinder (26), one end of threaded rod (25) and threaded cylinder (26) is fixedly provided in one end of short rotary lever (23) and short cylinder (24) respectively; Proximity switch (27), two proximity switches (27) are fixedly penetrated in corner plate (2); Driving wheel (28) and driven wheel (29), driving wheel (28) and driven wheel (29) are fixedly provided in the other end of short rotary lever (23) and short cylinder (24) respectively.

2. A hopper rotary valve feedback device according to claim 1, wherein, The surface of the vertical plate (11) is fixedly provided with two vertical plates (13), the bottom of the two vertical plates (13) is fixedly provided with a support plate (14), the surface of the back panel (1) and the front panel (12) is fixedly provided with a plurality of sliding frames (15), the two sides of the inner wall of the sliding frame (15) are fixedly provided with sliding strips (16), and the middle of the sliding frame (15) is slidably provided with a sliding plate (17).

3. A hopper rotary valve feedback device according to claim 2, wherein, The folding mechanism further includes: Prismatic rod (210), one end of multiple prismatic rods (210) is fixedly provided in the middle of driving wheel (28) and driven wheel (29) respectively; Prismatic cylinder (211), multiple prismatic cylinders (211) are threadedly sleeved in the other end of prismatic rod (210) respectively; Driving rod (212) and driven rod (213), one end of driving rod (212) and driven rod (213) is fixedly provided in the end of multiple prismatic cylinders (211) respectively; Rotating frame (214), at least two rotating frames (214) are fixedly sleeved in the other end of driving rod (212).

4. A hopper rotary valve feedback device according to claim 3, wherein, The clamping mechanism includes: Clamping block (3), multiple clamping blocks (3) are movably arranged on the front of back panel (1); Friction plate (31), multiple friction plates (31) are fixedly provided on the surface of multiple clamping blocks (3) respectively; Half screw cylinder (32), one end of two half screw cylinders (32) is fixedly provided on the surface of clamping block (3); Half screw rod (33), half screw rod (33) is integrally formed and fixedly provided on the inner side of the other end of half screw cylinder (32); Bolt rod (34), bolt rod (34) is fixedly provided on the surface of clamping block (3) and half screw cylinder (32); Bolt hole (35), bolt hole (35) is provided on the surface of clamping block (3) and half screw cylinder (32) in opening.

5. A hopper rotary valve feedback device according to claim 4, wherein, The clamping mechanism further includes: Rotating frame (36), one end of rotating frame (36) is fixedly provided in the middle of clamping block (3). Adjusting rod (37), adjusting rod (37) threaded through the other end of the rotating frame (36); Friction rod (38), friction rod (38) integrated into the one end of the adjusting rod (37); Metal end (39), metal end (39) integrated into the other end of the adjusting rod (37); Cylinder (310), cylinder (310) threaded on both ends of the two half screw (33); Side bar (311), a plurality of side bar (311) fixedly provided on the surface of the cylinder (310).

6. A hopper rotary valve feedback device according to claim 5, wherein, The side of the sliding plate (17) is rotatably fixed to the side of the driving rod (212) by the rotating member. The sliding plate (17) is provided with a sliding groove on both sides. The sliding bar (16) is matched with the sliding groove of the sliding plate (17). The axes of the driving wheel (28) and the driven wheel (29) are perpendicular. The sides of the driving wheel (28) and the driven wheel (29) are engaged.

7. A hopper rotary valve feedback device according to claim 5, wherein, The other end of the threaded rod (25) is threaded into the other end of the threaded cylinder (26). Four threaded rods (25) are arranged on the front of the back panel (1). Four threaded cylinders (26) are arranged on the front of the back panel (1). The threaded cylinder (26) and the corner plate (2) are perpendicular. The threaded rod (25) and the corner plate (2) are perpendicular.

8. A hopper rotary valve feedback device according to claim 5, wherein, The middle of the prism cylinder (211) is provided with a prism hole matched with the prism rod (210). Four sliding frames (15) are arranged on the front of the back panel (1). The sliding plate (17) is slidably arranged in the middle of the sliding frame (15). The vertical plate (11) is arranged on the front of the back panel (1).

9. A hopper rotary valve feedback device according to claim 5, wherein, The clamping block (3) is circular arc. A plurality of clamping blocks (3) are arranged around the periphery of the rotary valve power output end. A plurality of cylindrical cylinders (310) are arranged around the periphery of the plurality of clamping blocks (3). Two half screw rods (33) form a threaded column and are threaded into the middle of the cylindrical cylinder (310). The cylindrical cylinder (310) is sleeved in the middle of the two half screw cylinders (32).

10. A hopper rotary valve feedback device according to claim 5, wherein, The friction rod (38) is located in the middle of the rotating frame (36). A plurality of rotating frames (36) and a plurality of cylindrical cylinders (310) are arranged at intervals. A plurality of metal ends (39) are arranged around the middle of the four threaded rods (25). The middle of the front panel (12) is provided with a circular notch.

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