A UHPC metering feeder that is easy to clean

Abstract

This invention relates to the field of quantitative feeding technology, and in particular to a UHPC quantitative feeding device that is easy to clean. It includes a grooved bottom support plate, with two vertical bottom frames fixedly connected to the upper surface of the bottom support plate. A rotating mechanism is arranged above the two vertical bottom frames, and a push-pull mechanism, a water injection mechanism, and a quantitative feeding mechanism are arranged between the two vertical bottom frames. The rotating mechanism includes two connecting frames, with a connecting ring fixedly connected to the upper end of the opposite surfaces of the two connecting frames. A UHPC loading cylinder is fixedly sleeved inside the connecting ring. The push-pull mechanism includes an inclined slide rod and a fixed frame. The water injection mechanism includes an arc-shaped sealing plate and a vertical support. The quantitative feeding mechanism includes an annular plate, a drive connecting shaft, and two inclined limiting frames. By rotating the first screw, the first screw disengages from the first threaded groove, causing the connecting plate to lose the constraint of the first screw. The two connecting frames can deflect, and the rotation of the two connecting frames causes the UHPC loading cylinder to deflect, lowering the height of the UHPC loading cylinder so that the UHPC loading cylinder is closer to the ground.

Description

Technical Field

[0001] This invention relates to the field of quantitative feeding technology, and in particular to a UHPC quantitative feeding device that is easy to clean. Background Technology

[0002] Ultra-high performance concrete (UHPC) is a special engineering material with ultra-high strength, toughness, and high durability, and it has promising applications in national defense engineering, marine engineering, nuclear industry, special security and protection engineering, and municipal engineering. Tests have proven that its flexural strength is three times that of ordinary C50 concrete, its shrinkage is reduced by 50%, and it remains intact after 700 freeze-thaw cycles, earning it the title of "crack-free" concrete.

[0003] When filling UHPC, it is necessary to control the amount of UHPC entering the mold to avoid insufficient filling of the mold. Therefore, a UHPC quantitative feeding device that is easy to clean is proposed, which can both quantitatively feed and is easy to clean. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides a UHPC quantitative feeding device that is easy to clean.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a UHPC quantitative feeding device that is easy to clean, comprising a grooved bottom support plate, two vertical bottom frames fixedly connected to the upper surface of the bottom support plate, a rotating mechanism arranged above the two vertical bottom frames, a push-pull mechanism, a water injection mechanism, and a quantitative feeding mechanism arranged between the two vertical bottom frames, the rotating mechanism comprising two connecting frames, a connecting ring fixedly connected to the upper end of the opposite face of the two connecting frames, a UHPC feeding cylinder fixedly sleeved inside the connecting ring, the push-pull mechanism comprising an inclined slide rod and a fixed frame, the water injection mechanism comprising an arc-shaped sealing plate and a vertical support, and the quantitative feeding mechanism comprising an annular plate, a drive connecting shaft, and two inclined limiting frames. Each vertical base frame has a connecting block fixedly connected to its upper end. The upper end of the vertical base frame located on the left end has a threaded groove. The lower end of each connecting frame has a connecting piece fixedly connected to it. The lower ends of the two connecting pieces have connecting grooves. The two connecting grooves are respectively rotatably engaged with the two connecting blocks. The connecting piece located on the left end also has the same threaded groove. Rotating the screw causes the screw to disengage from the threaded groove, so that the connecting piece is no longer restricted by the screw. The two connecting frames can deflect. The rotation of the two connecting frames causes the UHPC loading cylinder to deflect, lowering the height of the UHPC loading cylinder so that the UHPC loading cylinder is close to the ground, making it easier to clean the inner wall of the UHPC loading cylinder. The screw is threaded into the two threaded grooves.

[0006] As a preferred embodiment of the present invention, the bottom of the UHPC loading cylinder is fixedly connected to a bottom feeding pipe with a valve, and the lower end of the outer wall of the bottom feeding pipe is a threaded surface.

[0007] As a preferred embodiment of the present invention, the lower end of the vertical support is fixedly connected to the bottom support plate, and the upper end of the vertical support is fixedly connected to a connecting column. Both connecting columns are fixedly connected to the arc-shaped sealing plate. Two circular grooves are provided on the arc-shaped sealing plate. A connecting pipe is fixedly sleeved in the upper circular groove. The upper end of the outer wall of the connecting pipe is a threaded surface. A connecting screw is threadedly sleeved on the outer surface of the connecting pipe. The upper end of the inner wall of the connecting screw is threadedly sleeved with the lower end of the bottom feeding pipe. The inner and outer diameters of the bottom feeding pipe and the connecting pipe are the same and fit together vertically.

[0008] As a preferred embodiment of the present invention, two rectangular plates are fixedly connected to the outer arc surface of the arc-shaped sealing plate, and an intermediate plate is fixedly connected between the two rectangular plates. The intermediate plate has a threaded groove and two rod grooves. Insert rods are movably sleeved in both rod grooves. A screw rod is threadedly sleeved in the threaded groove. A sealing piston plate is rotatably connected to one end of the screw rod near the arc-shaped sealing plate. The sealing piston plate is movably engaged in another circular groove. The right end of the drive connecting shaft is fixedly connected to the output shaft of the drive motor. The motor drives the drive connecting shaft to rotate. When the annular plate rotates to the vertical position of the metering tube, the metering tube is connected to the connecting tube. After the metering tube is filled, rotating the annular plate causes the opening of the metering tube to be blocked by the arc-shaped sealing plate, achieving the effect of filling the metering tube with quantitative feeding every time. Both insert rods are fixedly connected to the sealing piston plate.

[0009] As a preferred embodiment of the present invention, a collar is fixedly connected to the upper end of the fixing frame, and a rearward crossbeam is fixedly connected to the outer ring surface of the collar. Two parallel limiting rods of different lengths are fixedly connected to the crossbeam. The upper ends of the two parallel limiting rods are provided with oblique through grooves, and the two through grooves are movably connected to the inclined slide rod. Anti-slip grips and push plates are fixedly connected to both ends of the inclined slide rod, and a spring is movably connected to the rod surface of the inclined slide rod. The two ends of the spring are fixedly connected to the push plate and the parallel limiting rod, respectively.

[0010] As a preferred embodiment of the present invention, the drive connecting shaft is rotatably sleeved with the collar, and four equidistant connecting parts are fixedly connected to the left end of the drive connecting shaft. The disjoint ends of the four connecting parts are all fixedly connected to the right ring surface of the annular plate. The outer wall of the annular plate is movably fitted with the inner arc surface of the arc-shaped sealing plate. When the annular plate is rotated so that the slider and the push plate are aligned, the operator can pull the anti-slip handle to make the inclined slide rod slide along the through groove. The push plate pushes the slider to move. During the movement of the slider, the tube cleaning plate moves in the metering tube, thereby pushing all the material in the metering tube out of the metering tube. This avoids the effect of metering feeding caused by a large amount of UHPC material remaining on the inner wall during unloading. Two tube grooves are penetrated through the annular plate, and metering tubes are fixedly sleeved in the two tube grooves.

[0011] As a preferred embodiment of the present invention, the lower ends of the two inclined limiting frames are fixedly connected to the outer wall of the annular plate, the upper end of the tube groove is located between the two inclined limiting frames, the opposite surfaces of the two inclined limiting frames are provided with sliding grooves, and a limiting seat is fixedly connected between the two inclined limiting frames.

[0012] As a preferred embodiment of the present invention, a slider is movably arranged between the two inclined limiting frames. Two limiting blocks are fixedly connected to the side of the slider. The two limiting blocks are respectively engaged with two sliding grooves. After the anti-slip grip is released, the slider automatically resets under the elastic force of spring one, and the push plate also automatically resets under the elastic force of spring two. At this time, the annular plate can continue to rotate to prepare for the next filling, which improves efficiency. A round rod is fixedly connected to the slider. A circular tube cleaning plate is fixedly connected to one end of the round rod facing the annular plate. The tube cleaning plate is movably sleeved inside the metering tube.

[0013] In a preferred embodiment of the present invention, the round rod is movably sleeved with the limiting seat, and a second spring is movably sleeved on the surface of the round rod. The two ends of the second spring are respectively fixedly connected to the limiting seat and the slider.

[0014] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0015] 1. By rotating screw one, screw one is disengaged from thread groove one, so that the connecting piece is no longer restricted by screw one. The two connecting frames can deflect. The rotation of the two connecting frames causes the UHPC loading cylinder to deflect, lowering the height of the UHPC loading cylinder, so that the UHPC loading cylinder is close to the ground, making it easier to clean the inner wall of the UHPC loading cylinder.

[0016] 2. The right end of the drive connecting shaft is fixedly connected to the output shaft of the drive motor. The motor drives the drive connecting shaft to rotate. When the annular plate rotates to the point where the metering tube is vertical, the metering tube is connected to the connecting tube. After the metering tube is filled, the annular plate is rotated so that the opening of the metering tube is blocked by the arc-shaped sealing plate, achieving the effect of filling the metering tube with quantitative feeding every time.

[0017] 3. When the ring plate is rotated to align the slider with the push plate, the operator can pull the non-slip handle to make the inclined slide rod slide along the through groove. The push plate pushes the slider to move. During the movement of the slider, the tube cleaning plate moves inside the metering tube, thereby pushing all the material in the metering tube out of the metering tube, avoiding the effect of a large amount of UHPC material remaining on the inner wall during unloading.

[0018] 4. After releasing the anti-slip grip, the slider automatically resets under the elastic force of spring one, and the push plate also automatically resets under the elastic force of spring two. At this time, the ring plate can continue to rotate to prepare for the next filling, which improves efficiency.

[0019] 5. When cleaning the metering tube is required, rotate the annular plate to align the metering tube with the sealing piston plate, and rotate screw two to disengage the sealing piston plate. At this time, cleaning agent can be injected into the metering tube through the circular groove to facilitate cleaning of the inner wall of the metering tube.

[0020] 6. Rotate the connecting screw to connect the connecting tube and the bottom feeding tube together, improving stability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the arc-shaped sealing plate in this invention;

[0023] Figure 3 This is a schematic diagram of the connecting frame in the present invention;

[0024] Figure 4 This is a schematic diagram of the annular plate in this invention;

[0025] Figure 5 This is a schematic diagram of the fixing frame in this invention;

[0026] Figure 6 For the present invention Figure 3 A magnified structural diagram of point A in the middle.

[0027] The components include: 1. Bottom support plate; 2. Arc-shaped sealing plate; 3. Fixing frame; 4. Drive connecting shaft; 5. Vertical bottom frame; 6. Bottom feeding pipe; 7. UHPC loading cylinder; 8. Connecting ring; 9. Connecting frame; 12. Screw one; 13. Connecting piece; 14. Connecting groove; 15. Threaded groove one; 16. Connecting block; 17. Vertical bracket; 18. Circular groove; 19. Connecting column; 20. Connecting pipe; 21. Connecting screw pipe; 22. Sealing piston plate; 23. Screw two; 24. Intermediate plate; 25. Threaded groove II; 26. Rod groove; 27. Rectangular plate; 28. Connector; 29. ​​Inner tube cleaning plate; 30. Limiting seat; 31. Round rod; 32. Slide groove; 33. Slider; 34. Limiting block; 35. Angled limiting frame; 36. Spring II; 37. Quantitative tube; 38. Tube groove; 39. Annular plate; 40. Crossbeam; 41. Parallel limiting rod; 42. Through groove; 43. Inclined slide rod; 44. Push plate; 45. Spring I; 46. Anti-slip grip; 47. Collar; 48. Insert rod. Detailed Implementation

[0028] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0029] Example:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, an easy-to-clean UHPC quantitative feeding device includes a grooved bottom support plate 1. Two vertical bottom frames 5 are fixedly connected to the upper surface of the bottom support plate 1. A rotating mechanism is arranged above the two vertical bottom frames 5. A push-pull mechanism, a water injection mechanism, and a quantitative mechanism are arranged between the two vertical bottom frames 5. The rotating mechanism includes two connecting frames 9. A connecting ring 8 is fixedly connected to the upper end of the opposite faces of the two connecting frames 9. A UHPC feeding cylinder 7 is fixedly sleeved inside the connecting ring 8. The push-pull mechanism includes... The water injection mechanism includes an inclined sliding rod 43 and a fixed frame 3. The water injection mechanism includes an arc-shaped sealing plate 2 and a vertical support 17. The metering mechanism includes an annular plate 39, a drive connecting shaft 4, and two inclined limiting frames 35. Connecting blocks 16 are fixedly connected to the upper ends of both vertical bottom frames 5. A threaded groove 15 is provided on the upper end of the vertical bottom frame 5 located at the left end. A connecting piece 13 is fixedly connected to the lower end of each connecting frame 9. Connecting grooves 14 are provided on the lower ends of both connecting pieces 13, and the two connecting grooves 14 are respectively connected to the two connecting blocks. 16. A rotating snap-fit ​​connection is established. The connecting piece 13 at the left end also has the same threaded groove 15. A screw 12 is threaded into each of the two threaded grooves 15. By rotating the screw 12, it disengages from the threaded groove 15, freeing the connecting piece 13 from the constraint of the screw 12. The two connecting brackets 9 can then deflect. The rotation of the two connecting brackets 9 causes the UHPC loading cylinder 7 to deflect, lowering its height and bringing it closer to the ground, facilitating the cleaning of the inner wall of the UHPC loading cylinder 7. During cleaning, the bottom of the UHPC loading cylinder 7 is fixedly connected to a bottom feeding pipe 6 with a valve. The lower end of the outer wall of the bottom feeding pipe 6 is a threaded surface. The right end of the drive connecting shaft 4 is fixedly connected to the output shaft of the drive motor. The motor drives the drive connecting shaft 4 to rotate. When the annular plate 39 rotates to the point where the metering tube 37 is vertical, the metering tube 37 is connected to the connecting pipe 20. After the metering tube 37 is filled, the annular plate 39 is rotated so that the opening of the metering tube 37 is blocked by the arc-shaped sealing plate 2, so as to achieve the effect of filling the metering tube 37 with quantitative feeding every time.

[0031] When the annular plate 39 is rotated to align the slider 33 with the push plate 44, the operator can pull the anti-slip handle 46 to slide the inclined slide rod 43 along the through groove 42. The push plate 44 pushes the slider 33 to move. During the movement of the slider 33, the tube cleaning plate 29 moves within the metering tube 37, thereby pushing all the material in the metering tube 37 out of the metering tube 37. This avoids the effect of excessive UHPC material remaining on the inner wall during unloading affecting the metering effect. The lower end of the vertical support 17 is fixedly connected to the bottom support plate 1, and the upper end of the vertical support 17 is fixedly connected to the connecting column 19. Both connecting columns 19 are fixed to the arc-shaped sealing plate 2. The arc-shaped sealing plate 2 has two circular grooves 18. A connecting pipe 20 is fixedly sleeved in the upper groove 18. The upper end of the outer wall of the connecting pipe 20 is threaded. A connecting threaded tube 21 is threaded onto the outer tube surface of the connecting pipe 20. Rotating the connecting threaded tube 21 connects the connecting pipe 20 and the bottom feeding pipe 6 together, improving stability. The upper end of the inner wall of the connecting threaded tube 21 is threaded onto the lower end of the bottom feeding pipe 6. The bottom feeding pipe 6 and the connecting pipe 20 have the same inner and outer diameters and fit together vertically. Two rectangular plates 27 are fixedly connected to the outer arc surface of the arc-shaped sealing plate 2. A middle... The intermediate plate 24 has a threaded groove 25 and two rod grooves 26. Insert rods 48 are movably fitted into each of the two rod grooves 26. A screw 23 is threaded into the threaded groove 25. A sealing piston plate 22 is rotatably connected to one end of the screw 23 near the arc-shaped sealing plate 2. The sealing piston plate 22 is movably engaged in another circular groove 18. Both insert rods 48 are fixedly connected to the sealing piston plate 22. A collar 47 is fixedly connected to the upper end of the fixing frame 3. A rearward-facing crossbeam 40 is fixedly connected to the outer ring surface of the collar 47. Two parallel limiting rods 4 of different lengths are fixedly connected to the crossbeam 40. 1. The upper ends of the two parallel limiting rods 41 are provided with oblique through grooves 42. The two through grooves 42 are movably connected to the inclined slide rod 43. The two ends of the inclined slide rod 43 are respectively fixedly connected to the anti-slip handle 46 and the push plate 44. The rod surface of the inclined slide rod 43 is movably connected to the first spring 45. The two ends of the first spring 45 are respectively fixedly connected to the push plate 44 and the parallel limiting rod 41. After the anti-slip handle 46 is released, the slider 33 automatically resets under the elastic force of the first spring 45. Under the elastic force of the second spring 36, the push plate 44 also automatically resets. At this time, the annular plate 39 can continue to rotate to prepare for the next filling, which improves efficiency.

[0032] When cleaning the metering tube 37 is required, rotate the annular plate 39 to align the metering tube 37 with the sealing piston plate 22, and rotate the screw 23 to disengage the sealing piston plate 22 from the circular groove 18. At this time, cleaning agent can be injected into the metering tube 37 through the circular groove 18 to facilitate cleaning of the inner wall of the metering tube 37. The drive connecting shaft 4 is rotatably sleeved with the collar 47. The left end of the drive connecting shaft 4 is fixedly connected to four equidistant connecting pieces 28. The disjoint ends of the four connecting pieces 28 are all fixedly connected to the right annular surface of the annular plate 39. The outer wall of the annular plate 39 is movably fitted with the inner arc surface of the arc-shaped sealing plate 2. Two tube grooves 38 penetrate the annular plate 39, and metering tubes 37 are fixedly sleeved in the two tube grooves 38. The lower ends of the two inclined limiting frames 35 are fixedly connected to the outer wall of the annular plate 39. The upper end of the... The tube groove 38 is located between two inclined limiting frames 35. Each of the two inclined limiting frames 35 has a sliding groove 32 on its opposite surface. A limiting seat 30 is fixedly connected between the two inclined limiting frames 35. A slider 33 is movably arranged between the two inclined limiting frames 35. Two limiting blocks 34 are fixedly connected to the side of the slider 33. The two limiting blocks 34 are movably engaged with the two sliding grooves 32 respectively. A round rod 31 is fixedly connected to the slider 33. A circular tube cleaning plate 29 is fixedly connected to one end of the round rod 31 facing the annular plate 39. The tube cleaning plate 29 is movably sleeved inside the metering tube 37. The round rod 31 is movably sleeved with the limiting seat 30. A spring 36 is movably sleeved on the rod surface of the round rod 31. The two ends of the spring 36 are fixedly connected to the limiting seat 30 and the slider 33 respectively.

[0033] Working principle: During use, rotating screw 12 disengages it from threaded groove 15, freeing connecting piece 13 from the constraint of screw 12. This allows the two connecting brackets 9 to deflect, causing the UHPC loading cylinder 7 to deflect and lower its height, bringing it closer to the ground for easier cleaning of its inner wall. The right end of the drive connecting shaft 4 is fixedly connected to the output shaft of the drive motor, which drives the drive connecting shaft 4 to rotate. When the annular plate 39 rotates until the metering tube 37 is vertical, the metering tube 37 connects to the connecting pipe 20. After the metering tube 37 is filled, rotating the annular plate 39 blocks the opening of the metering tube 37 with the arc-shaped sealing plate 2, achieving a metered feeding effect where the metering tube 37 is filled completely with each filling. When rotating the annular plate 39 aligns the slider 33 with the push plate 44, the operator can pull the anti-slip handle 46 to move the inclined slider 43 along the through... The groove 42 slides, and the push plate 44 pushes the slider 33 to move. During the movement of the slider 33, the cleaning plate 29 inside the tube moves inside the metering tube 37, thereby pushing all the material inside the metering tube 37 out of the metering tube 37. This avoids the effect of the metering feeding caused by a large amount of UHPC material remaining on the inner wall during unloading. After releasing the anti-slip handle 46, the slider 33 automatically resets under the elastic force of the spring 1 45. Under the elastic force of the spring 2 36, the push plate 44 also automatically resets. At this time, the annular plate 39 can continue to rotate to prepare for the next filling, which improves efficiency. When it is necessary to clean the metering tube 37, rotate the annular plate 39 to align the metering tube 37 with the sealing piston plate 22. Rotate the screw 2 23 to disengage the sealing piston plate 22 from the circular groove 18. At this time, cleaning agent can be injected into the metering tube 37 through the circular groove 18 to facilitate the cleaning of the inner wall of the metering tube 37. Rotate the connecting screw 21 to connect the connecting pipe 20 and the bottom feeding pipe 6 together, which improves stability.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A UHPC quantitative feeding device that is easy to clean, comprising a grooved bottom support plate (1), characterized in that, Two vertical bottom frames (5) are fixedly connected to the upper surface of the bottom support plate (1), and a rotating mechanism is provided above the two vertical bottom frames (5). A push-pull mechanism, a water injection mechanism, and a metering mechanism are provided between the two vertical bottom frames (5); The rotating mechanism includes two connecting frames (9), and a connecting ring (8) is fixedly connected to the upper end of the opposite face of the two connecting frames (9). A UHPC loading cylinder (7) is fixedly sleeved inside the connecting ring (8). The push-pull mechanism includes an inclined slide bar (43) and a fixed frame (3); The water injection mechanism includes an arc-shaped sealing plate (2) and a vertical support (17). The quantitative mechanism includes an annular plate (39), a drive connecting shaft (4), and two inclined limiting frames (35). The upper ends of the two vertical base frames (5) are fixedly connected to connecting blocks (16). The upper end of the vertical base frame (5) located on the left end is provided with a threaded groove (15). The lower end of each connecting frame (9) is fixedly connected to a connecting piece (13). The lower ends of the two connecting pieces (13) are provided with connecting grooves (14). The two connecting grooves (14) are respectively rotated and engaged with the two connecting blocks (16). The connecting piece (13) located on the left end is also provided with the same threaded groove (15). The two threaded grooves (15) are threaded with a screw (12). The upper end of the fixed frame (3) is fixedly connected to a collar (47), and the outer ring surface of the collar (47) is fixedly connected to a rearward crossbeam (40). The crossbeam (40) is fixedly connected to two parallel limiting rods (41) of different lengths. The upper ends of the two parallel limiting rods (41) are provided with oblique through grooves (42). The two through grooves (42) are movably connected to the inclined slide rod (43). The two ends of the inclined slide rod (43) are respectively fixedly connected to an anti-slip handle (46) and a push plate (44). The rod surface of the inclined slide rod (43) is movably connected to a spring (45). The two ends of the spring (45) are respectively fixedly connected to the push plate (44) and the parallel limiting rod (41). The drive connecting shaft (4) is rotatably sleeved with the collar (47). The left end of the drive connecting shaft (4) is fixedly connected with four equidistant connecting pieces (28). The disjoint ends of the four connecting pieces (28) are all fixedly connected to the right annular surface of the ring plate (39). The outer wall of the ring plate (39) is movably fitted with the inner arc surface of the arc-shaped sealing plate (2). Two tube grooves (38) pass through the ring plate (39). A metering tube (37) is fixedly sleeved in the two tube grooves (38).

2. The UHPC quantitative feeding device that is easy to clean according to claim 1, characterized in that, The bottom of the UHPC loading cylinder (7) is fixedly connected to a bottom feeding pipe (6) with a valve, and the lower end of the outer wall of the bottom feeding pipe (6) is a threaded surface.

3. The UHPC quantitative feeding device that is easy to clean according to claim 2, characterized in that, The lower end of the vertical support (17) is fixedly connected to the bottom support plate (1), and the upper end of the vertical support (17) is fixedly connected to the connecting column (19). Both connecting columns (19) are fixedly connected to the arc-shaped sealing plate (2). The arc-shaped sealing plate (2) has two circular grooves (18). A connecting pipe (20) is fixedly sleeved in the upper circular groove (18). The upper end of the outer wall of the connecting pipe (20) is a threaded surface. A connecting screw pipe (21) is threaded on the outer tube surface of the connecting pipe (20). The upper end of the inner wall of the connecting screw pipe (21) is threaded with the lower end of the bottom feeding pipe (6). The bottom feeding pipe (6) and the connecting pipe (20) have the same inner and outer diameters and fit together vertically.

4. The UHPC quantitative feeding device that is easy to clean according to claim 3, characterized in that, Two rectangular plates (27) are fixedly connected to the outer arc surface of the arc-shaped sealing plate (2). An intermediate plate (24) is fixedly connected between the two rectangular plates (27). The intermediate plate (24) has a threaded groove (25) and two rod grooves (26). Insert rods (48) are movably sleeved in the two rod grooves (26). A screw rod (23) is threaded in the threaded groove (25). A sealing piston plate (22) is rotatably connected to one end of the screw rod (23) near the arc-shaped sealing plate (2). The sealing piston plate (22) is movably engaged in another circular groove (18). Both insert rods (48) are fixedly connected to the sealing piston plate (22).

5. A UHPC quantitative feeding device that is easy to clean according to claim 4, characterized in that, The lower ends of the two inclined limiting frames (35) are fixedly connected to the outer wall of the annular plate (39). The upper end of the tube groove (38) is located between the two inclined limiting frames (35). The opposite surfaces of the two inclined limiting frames (35) are provided with sliding grooves (32). The two inclined limiting frames (35) are fixedly connected with limiting seats (30).

6. A UHPC quantitative feeding device that is easy to clean according to claim 5, characterized in that, A slider (33) is movably arranged between the two inclined limiting frames (35). Two limiting blocks (34) are fixedly connected to the side of the slider (33). The two limiting blocks (34) are movably engaged with the two sliding grooves (32). A round rod (31) is fixedly connected to the slider (33). A circular tube cleaning plate (29) is fixedly connected to one end of the round rod (31) facing the annular plate (39). The tube cleaning plate (29) is movably sleeved inside the quantitative tube (37).

7. A UHPC quantitative feeding device that is easy to clean according to claim 6, characterized in that, The round rod (31) is movably sleeved with the limiting seat (30), and the rod surface of the round rod (31) is movably sleeved with a second spring (36). The two ends of the second spring (36) are fixedly connected to the limiting seat (30) and the slider (33) respectively.

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