A pressure proportional mixing device and method of use thereof

Abstract

The application relates to the technical field of mixing equipment, in particular to a pressure type proportional mixing device which comprises a fixed disc arranged above a mixing tank, a mounting frame and a rotating disc arranged on the surface of the fixed disc, a driving disc arranged on one side of the mounting frame, a moving block arranged on the surface of the driving disc, a rotating connecting rod rotatably connected to the surface of the moving block, a driving lifting rod rotatably connected to one end of the rotating connecting rod, and a fixed connecting rod connecting the driving lifting rod and a driven lifting rod. A transition pipe corresponding to a discharge pipe is arranged in the rotating disc. The position of the moving block on the surface of the driving disc is adjusted through a rotating threaded rod, the stroke of the driving disc in the rotating process is changed to drive the piston block to lift, the material injected into the mixing tank by the piston block in one lifting is changed, different materials are continuously and quantitatively injected into the mixing tank according to the proportion through multiple feeding barrels, the material is prevented from being divided in the mixing tank, and the stirring efficiency during mixing is improved.

Description

Technical Field

[0001] This invention relates to the field of mixing equipment technology, specifically to a pressure-type proportioning mixing device and its usage method. Background Technology

[0002] The pressure proportioning mixer is the core equipment in a foam fire extinguishing system. Its function is to mix water and foam in a certain proportion to form a uniform foam mixture. The accuracy of the mixing ratio and the uniformity of the mixing directly affect the fire extinguishing efficiency.

[0003] In the prior art, when mixing foam and water, a certain amount of water and foam are introduced into the mixing tank by external pressure, and then the mixing is achieved by stirring the water and foam through the stirring mechanism in the mixing tank.

[0004] However, when a certain amount of water and foam are introduced into the mixing tank, the water and foam exhibit polarization. That is, when the water and foam first enter the mixing tank, they do not mix much, which requires the stirring mechanism to stir them for a longer period of time. Furthermore, large pieces of foam are not easily dispersed during the stirring process, resulting in uneven mixing. Summary of the Invention

[0005] The purpose of this invention is to provide a pressure-type proportioning mixing device and its usage method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A pressure-type proportioning mixing device, comprising:

[0008] A mixing tank, with a fixed plate installed on top of the mixing tank, a mounting frame and a rotating plate on the surface of the fixed plate, a support frame on the surface of the mounting frame, a feeding cylinder connected to one end of the support frame, a piston block inside the feeding cylinder, a driven lifting rod connected to the surface of the piston block, and an inlet pipe and an outlet pipe connected to the bottom of the feeding cylinder.

[0009] A drive plate is provided on one side of the mounting bracket. A movable block is provided on the surface of the drive plate. A rotating connecting rod is rotatably connected to the surface of the movable block. An active lifting rod is rotatably connected to one end of the rotating connecting rod. The active lifting rod and the driven lifting rod are connected by a fixed connecting rod. A sector gear is installed on the side of the movable block.

[0010] The rotating disk has a transition pipe inside that corresponds to the discharge pipe, and a bevel gear that meshes with the sector gear is fixedly installed on the surface of the rotating disk.

[0011] Preferably, at least two sets of mounting brackets are provided, and a drive motor is fixedly installed inside the mounting bracket.

[0012] Preferably, the piston block is slidably fitted against the inner wall of the feeding cylinder, and the piston block is used to suck up and discharge materials.

[0013] Preferably, a first check valve and a second check valve are respectively installed inside the feed pipe and the discharge pipe. The first check valve is used to control the material to flow only into the feed cylinder, and the second check valve is used to control the material to flow only to the outside of the feed cylinder. The feed pipe is connected to the material storage tank.

[0014] Preferably, the drive disk is fixedly connected to the output shaft of the drive motor, the surface of the drive disk is provided with a moving groove, a guide rod is fixedly installed inside the moving groove, the moving block is slidably sleeved on the surface of the guide rod, a threaded rod is fixedly installed on the surface of the drive disk at a position corresponding to the moving groove, the threaded rod is screwed to the moving block, and a control head for controlling the rotation of the threaded rod is provided at one end of the threaded rod.

[0015] Preferably, the rotating disk has an exhaust pipe, a first telescopic cavity, and a second telescopic cavity sequentially formed in the middle, and the exhaust pipe, the first telescopic cavity, and the second telescopic cavity are interconnected and pass through the rotating disk. The second telescopic cavity is connected to the transition pipe. An arc panel is provided on the side of the second telescopic cavity near the mixing tank. A fixing rod is fixedly connected to the surface of the arc panel. A scraper is fixedly connected to the end of the fixing rod away from the arc panel. The scraper is slidably disposed inside the second telescopic cavity. A telescopic rod is fixedly connected to the surface of the scraper. A limiting plate is fixedly connected to the top of the telescopic rod. The limiting plate is slidably disposed inside the first telescopic cavity. A compression spring is provided on the side of the limiting plate near the scraper. A stirring shaft is provided at the bottom of the arc panel. A clearance groove is formed at the position of the rotating disk corresponding to the transition pipe. A flipping plate is rotatably disposed inside the clearance groove. A torsion spring is installed at the pivot of the flipping plate. A third telescopic cavity is formed on one side of the flipping plate. A sealing ball is installed inside the third telescopic cavity. A compression spring is provided on the top of the sealing ball. The sealing ball is used to seal the transition pipe.

[0016] Preferably, the stirring shaft is rotatably disposed inside the mixing tank, and multiple sets of extension frames are fixedly installed on the surface of the stirring shaft. A pressure rod is fixedly installed on the inner side of the extension frame, and the pressure rod slides in cooperation with the arc panel.

[0017] Preferably, the bottom surface of the bevel gear is provided with a positioning groove, and a positioning seat is provided below the bevel gear.

[0018] Preferably, a pressure-bearing rod is slidably disposed inside the positioning seat, a compression spring is disposed at the bottom of the pressure-bearing rod, and an inclined surface is disposed at the top of the pressure-bearing rod, and the inclined surface at the top of the pressure-bearing rod slides in cooperation with the sector gear. A positioning block is fixedly connected to one side of the pressure-bearing rod, and the positioning block is used to cooperate with the positioning groove to fix the position of the bevel gear.

[0019] A method of using a pressure-type proportioning mixing device includes the following steps:

[0020] Step 1: Connect the feed pipe to the material storage tank, start the drive motor and the drive mechanism that drives the stirring shaft to rotate. The drive motor drives the drive disc to rotate. The drive disc drives the active lifting rod to rise and fall through the moving block and the rotating connecting rod. The active lifting rod drives the stirring shaft to rise inside the feeding cylinder through the fixed connecting rod and the driven lifting rod, sucking the material into the inside of the feeding cylinder through the feed pipe. At the same time, the drive disc drives the rotating disc to rotate through the sector gear and the bevel gear.

[0021] Step 2: When the discharge pipe is aligned with the transition pipe, the sector gear disengages from the bevel gear. At the same time, the discharge pipe pushes the flip plate into the interior of the relief groove, connecting the discharge pipe with the transition pipe. Simultaneously, the pressure rod disengages from the sector gear and, under the rebound of the compression spring, drives the positioning block to insert into the interior of the positioning groove, fixing the position of the rotating disk.

[0022] Step 3: The drive disc continues to rotate, causing the piston block to descend inside the feeding cylinder, discharging the material inside the feeding cylinder through the discharge pipe, and then entering the mixing tank through the transition pipe to participate in the mixing.

[0023] Step 4: Driven by the drive mechanism, the stirring shaft drives multiple sets of extension frames to make circular motion. The multiple sets of extension frames drive the pressure rod to roll intermittently on the surface of the arc panel. The arc of the arc panel surface pulls the fixed rod, so that the fixed rod scrapes the material at the outlet of the transition pipe 1.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. By rotating the threaded rod to adjust the position of the moving block on the surface of the drive disc, the stroke of the piston block driven by the drive disc during rotation is changed, thereby changing the amount of material injected into the mixing tank with each piston block rise and fall. This allows multiple sets of feeding cylinders to continuously and quantitatively inject different materials into the mixing tank in proportion, avoiding material differentiation inside the mixing tank and preventing large pieces of a single material from existing inside the mixing tank. This improves the stirring efficiency during mixing and also improves the uniformity of the mixture.

[0026] 2. By setting up sector gears and discharge pipes, multiple sets of transition pipes and multiple sets of discharge pipes take turns cooperating during the injection process, so that different materials and water flow through the same set of transition pipes, avoiding the adhesion of a single material to the inside of the transition pipe.

[0027] 3. By setting up scrapers, during the mixing process, multiple sets of extension frames drive the pressure rods to roll intermittently on the surface of the arc panel. The curvature of the arc panel surface pulls the fixed rod, causing the fixed rod to scrape off the material at the outlet of the transition pipe, thus avoiding the problem of uneven mixing caused by the accumulation of material at the outlet of the transition pipe. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0030] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0031] Figure 4 For the present invention Figure 2 Enlarged view of point B in the middle;

[0032] Figure 5 This is a schematic diagram of the drive disk of the present invention;

[0033] Figure 6 This is a schematic diagram of the arc panel of the present invention;

[0034] Figure 7 This is a schematic diagram of the flip plate of the present invention.

[0035] In the diagram: Mixing tank 1, Fixed plate 2, Mounting frame 21, Support frame 22, Feeding cylinder 23, Active lifting rod 24, Fixed connecting rod 25, Driven lifting rod 26, Piston block 27, Feed pipe 28, First one-way valve 281, Discharge pipe 29, Second one-way valve 291, Drive motor 3, Drive plate 4, Moving groove 41, Guide rod 42, Threaded rod 43, Moving block 44, Sector gear 45, Rotating connecting rod 46, Rotating plate 5, Transition pipe 51, Exhaust pipe 52, First telescopic cavity 53, Second telescopic cavity 54, Relief groove 55, Tilting plate 56, Third telescopic cavity 57, Sealing ball 58, Bevel gear 59, Positioning groove 591, Arc panel 6, Fixed rod 61, Scraper 62, Limiting plate 63, Telescopic rod 64, Stirring shaft 7, Extension frame 71, Pressure rod 72, Positioning seat 8, Pressure bearing rod 81, Positioning block 82. Detailed Implementation

[0036] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0037] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0038] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two connected entities do not establish a connection relationship through an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0040] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Please see the appendix Figure 1 To be continued Figure 7 As shown, the present invention provides a pressure-type proportioning mixing device, comprising:

[0042] A mixing tank 1 has a fixed plate 2 mounted on its top. The surface of the fixed plate 2 is provided with a mounting bracket 21 and a rotating disk 5. At least two sets of mounting brackets 21 are provided. A drive motor 3 is fixedly installed inside each mounting bracket 21. A support frame 22 is mounted on the surface of the mounting bracket 21. One end of the support frame 22 is connected to a feeding cylinder 23. A piston block 27 is provided inside the feeding cylinder 23. The piston block 27 slides against the inner wall of the feeding cylinder 23. The piston block 27 is used for... The piston block 27 is connected to a driven lifting rod 26 for sucking and discharging materials. The bottom of the feeding cylinder 23 is connected to an inlet pipe 28 and an outlet pipe 29. The inlet pipe 28 and the outlet pipe 29 are respectively equipped with a first one-way valve 281 and a second one-way valve 291. The first one-way valve 281 is used to control the material to flow only into the inside of the feeding cylinder 23, and the second one-way valve 291 is used to control the material to flow only to the outside of the feeding cylinder 23. The inlet pipe 28 is connected to a material storage tank.

[0043] A drive disk 4 is provided on one side of the mounting bracket 21. The drive disk 4 is fixedly connected to the output shaft of the drive motor 3. A moving groove 41 is opened on the surface of the drive disk 4. A guide rod 42 is fixedly installed inside the moving groove 41. A moving block 44 is provided on the surface of the drive disk 4. The moving block 44 is slidably sleeved on the surface of the guide rod 42. A threaded rod 43 is fixedly installed on the surface of the drive disk 4 at a position corresponding to the moving groove 41. The threaded rod 43 is screwed to the moving block 44. A control head for controlling the rotation of the threaded rod 43 is provided at one end of the threaded rod 43. A rotating connecting rod 46 is rotatably connected to the surface of the moving block 44. An active lifting rod 24 is rotatably connected to one end of the rotating connecting rod 46. The active lifting rod 24 and the driven lifting rod 26 are connected by a fixed connecting rod 25. A sector gear 45 is installed on the side of the moving block 44.

[0044] The rotating disk 5 has a transition pipe 51 corresponding to the discharge pipe 29 inside. An exhaust pipe 52, a first telescopic cavity 53, and a second telescopic cavity 54 are sequentially formed in the middle of the rotating disk 5. The exhaust pipe 52, the first telescopic cavity 53, and the second telescopic cavity 54 are interconnected and pass through the rotating disk 5. The second telescopic cavity 54 is connected to the transition pipe 51. An arc-shaped panel 6 is provided on the side of the second telescopic cavity 54 closest to the mixing tank 1. A fixing rod 61 is fixedly connected to the surface of the arc-shaped panel 6, with the end of the fixing rod 61 away from the arc-shaped panel 6... A scraper 62 is fixedly connected and slidably disposed inside the second telescopic cavity 54. A telescopic rod 64 is fixedly connected to the surface of the scraper 62, and a limiting plate 63 is fixedly connected to the top end of the telescopic rod 64. The limiting plate 63 is slidably disposed inside the first telescopic cavity 53. A compression spring is provided on the side of the limiting plate 63 near the scraper 62. A stirring shaft 7 is provided at the bottom of the arc panel 6. A clearance groove 55 is opened at the position corresponding to the transition tube 51 on the rotating disk 5. A flipping plate 56 is rotatably disposed inside the clearance groove 55. A torsion spring is installed at the pivot of the flip plate 56. A third telescopic cavity 57 is opened on one side of the flip plate 56. A sealing ball 58 is installed inside the third telescopic cavity 57. A compression spring is provided on the top of the sealing ball 58. The sealing ball 58 is used to seal the transition tube 51. The stirring shaft 7 is rotatably disposed inside the mixing tank 1. Multiple sets of extension brackets 71 are fixedly installed on the surface of the stirring shaft 7. A pressure rod 72 is fixedly installed on the inner side of the extension bracket 71. The pressure rod 72 slides with the arc panel 6. A surface of the rotating disk 5 is fixedly installed with... The sector gear 45 meshes with a bevel gear 59. The bottom surface of the bevel gear 59 has a positioning groove 591. A positioning seat 8 is provided below the bevel gear 59. A pressure-bearing rod 81 is slidably arranged inside the positioning seat 8. A compression spring is provided at the bottom of the pressure-bearing rod 81. An inclined surface is provided at the top of the pressure-bearing rod 81, and the inclined surface at the top of the pressure-bearing rod 81 is slidably engaged with the sector gear 45. A positioning block 82 is fixedly connected to one side of the pressure-bearing rod 81. The positioning block 82 is used to cooperate with the positioning groove 591 to fix the position of the bevel gear 59.

[0045] A method of using a pressure-type proportioning mixing device includes the following steps:

[0046] Step 1: Connect the feed pipe 28 to the material storage tank, start the drive motor 3 and the drive mechanism that drives the stirring shaft 7 to rotate. The drive motor 3 drives the drive disc 4 to rotate. The drive disc 4 drives the active lifting rod 24 to rise and fall through the moving block 44 and the rotating connecting rod 46. The active lifting rod 24 drives the stirring shaft 7 to rise inside the feeding cylinder 23 through the fixed connecting rod 25 and the driven lifting rod 26, so that the material is sucked into the inside of the feeding cylinder 23 through the feed pipe 28. At the same time, the drive disc 4 drives the rotating disc 5 to rotate through the sector gear 45 and the bevel gear 59.

[0047] Step 2: When the discharge pipe 29 is aligned with the transition pipe 51, the sector gear 45 disengages from the bevel gear 59. Simultaneously, the discharge pipe 29 pushes the tilting plate 56 into the interior of the relief groove 55, connecting the discharge pipe 29 with the transition pipe 51. At the same time, the pressure rod 81 disengages from 45, and under the rebound of the compression spring, it drives the positioning block 82 to insert into the interior of the positioning groove 591, fixing the position of the rotating disk 5.

[0048] Step 3: The drive disc 4 continues to rotate, driving the piston block 27 to descend inside the feeding cylinder 23, discharging the material inside the feeding cylinder 23 through the discharge pipe 29, and then entering the mixing tank 1 through the transition pipe 51 to participate in the mixing.

[0049] Step 4: Driven by the drive mechanism, the stirring shaft 7 drives multiple sets of extension frames 71 to make circular motion. The multiple sets of extension frames 71 drive the pressure rod 72 to roll intermittently on the surface of the arc panel 6. The arc of the arc panel 6 pulls the fixed rod 61, so that the fixed rod 61 scrapes the material at the outlet of the transition pipe 51.

[0050] The present invention discloses a pressure-type proportioning mixing device. In use, the feed pipe 28 is connected to a material storage tank. The drive motor 3 and the drive mechanism that drives the stirring shaft 7 are activated. The drive motor 3 drives the drive disc 4 to rotate. The drive disc 4, through a moving block 44 and a rotating connecting rod 46, drives the active lifting rod 24 to rise and fall. The active lifting rod 24, through a fixed connecting rod 25 and a driven lifting rod 26, drives the stirring shaft 7 to rise inside the feeding cylinder 23, drawing material into the feeding cylinder 23 through the feed pipe 28. Simultaneously, the drive disc 4 drives a rotating disc through a sector gear 45 and a bevel gear 59. 5. When the discharge pipe 29 is aligned with the transition pipe 51, the sector gear 45 disengages from the bevel gear 59. At the same time, the discharge pipe 29 pushes the flip plate 56 into the interior of the relief groove 55, so that the discharge pipe 29 is connected to the transition pipe 51. At the same time, the pressure rod 81 disengages from the sector gear 45. Under the rebound of the compression spring, it drives the positioning block 82 to insert into the interior of the positioning groove 591, fixing the position of the rotating disk 5. The drive disk 4 continues to rotate, driving the piston block 27 to descend inside the feeding cylinder 23, discharging the material inside the feeding cylinder 23 through the discharge pipe 29, and entering the interior of the mixing tank 1 through the transition pipe 51 to participate in the mixing.

[0051] By rotating the threaded rod 43 to adjust the position of the moving block 44 on the surface of the drive disc 4, the stroke of the piston block 27 driven by the drive disc 4 during rotation is changed, thereby changing the amount of material injected into the mixing tank 1 by the piston block 27 during each rise and fall. This allows multiple sets of feeding cylinders 23 to continuously and quantitatively inject different materials into the mixing tank 1 according to the proportion, avoiding material differentiation inside the mixing tank 1 and preventing large pieces of a single material from existing inside the mixing tank 1. This improves the stirring efficiency during mixing and also improves the uniformity of mixing.

[0052] As a further improvement of the present invention, by setting up a sector gear 45 and a discharge pipe 29, during the material injection process, multiple sets of transition pipes 51 and multiple sets of discharge pipes 29 take turns cooperating, so that the same set of transition pipes 51 flows through different materials and water, avoiding the adhesion of a single material inside the transition pipe 51.

[0053] As a further improvement of the present invention, by setting scraper 62, during the mixing process, multiple sets of extension frames 71 drive pressure rod 72 to roll intermittently on the surface of arc panel 6. The arc of the surface of arc panel 6 pulls the fixed rod 61, so that the fixed rod 61 scrapes off the material at the outlet of transition pipe 51, avoiding the problem of uneven mixing caused by the accumulation of material at the outlet of transition pipe 51.

[0054] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0055] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A pressure-type proportioning mixing device, characterized in that, include: A mixing tank (1) is provided with a fixed plate (2) installed on top of the mixing tank (1). The surface of the fixed plate (2) is provided with a mounting frame (21) and a rotating plate (5). The mounting frame (21) is provided with at least two sets. A drive motor (3) is fixedly installed inside the mounting frame (21). A support frame (22) is installed on the surface of the mounting frame (21). One end of the support frame (22) is connected to a feeding cylinder (23). A piston block (27) is provided inside the feeding cylinder (23). A driven lifting rod (26) is connected to the surface of the piston block (27). The bottom of the feeding cylinder (23) is connected to an inlet pipe (28) and an outlet pipe (29). A drive plate (4) is provided on one side of the mounting bracket (21). A movable block (44) is provided on the surface of the drive plate (4). The drive plate (4) is fixedly connected to the output shaft of the drive motor (3). A movable groove (41) is opened on the surface of the drive plate (4). A guide rod (42) is fixedly installed inside the movable groove (41). The movable block (44) is slidably sleeved on the surface of the guide rod (42). A thread is fixedly installed on the surface of the drive plate (4) at the position corresponding to the movable groove (41). The threaded rod (43) is screwed to the moving block (44). One end of the threaded rod (43) is provided with a control head for controlling the rotation of the threaded rod (43). A rotating connecting rod (46) is rotatably connected to the surface of the moving block (44). One end of the rotating connecting rod (46) is rotatably connected to an active lifting rod (24). The active lifting rod (24) and the driven lifting rod (26) are connected by a fixed connecting rod (25). A sector gear (45) is installed on the side of the moving block (44). The rotating disk (5) has a transition pipe (51) corresponding to the discharge pipe (29) inside. An exhaust pipe (52), a first telescopic cavity (53), and a second telescopic cavity (54) are sequentially opened in the middle of the rotating disk (5). The exhaust pipe (52), the first telescopic cavity (53), and the second telescopic cavity (54) are interconnected and pass through the rotating disk (5). The second telescopic cavity (54) is connected to the transition pipe (51). An arc panel (6) is provided on the side of the second telescopic cavity (54) near the mixing tank (1). A fixing rod (61) is fixedly connected to the surface of the arc panel (6). The fixing rod (61) is located away from the arc panel (6). One end of the rotating disk (6) is fixedly connected to a scraper (62), which is slidably disposed inside the second telescopic cavity (54). A telescopic rod (64) is fixedly connected to the surface of the scraper (62), and a limiting plate (63) is fixedly connected to the top end of the telescopic rod (64). The limiting plate (63) is slidably disposed inside the first telescopic cavity (53). A compression spring is provided on the side of the limiting plate (63) near the scraper (62). A stirring shaft (7) is provided at the bottom of the arc panel (6). A clearance groove (55) is provided at the position corresponding to the transition tube (51) on the rotating disk (5). A flipping plate (5) is rotatably disposed inside the clearance groove (55). 6) A torsion spring is installed at the pivot of the flip plate (56). A third telescopic cavity (57) is opened on one side of the flip plate (56). A sealing ball (58) is installed inside the third telescopic cavity (57). A compression spring is provided on the top of the sealing ball (58). The sealing ball (58) is used to seal the transition tube (51). The stirring shaft (7) is rotatably installed inside the mixing tank (1). Multiple sets of extension frames (71) are fixedly installed on the surface of the stirring shaft (7). A pressure rod (72) is fixedly installed on the inner side of the extension frame (71). The pressure rod (72) slides with the arc panel (6). The surface of the rotating disk (5) is fixedly installed with A bevel gear (59) meshes with the sector gear (45). The bottom surface of the bevel gear (59) is provided with a positioning groove (591). A positioning seat (8) is provided below the bevel gear (59). A pressure rod (81) is slidably provided inside the positioning seat (8). A compression spring is provided at the bottom of the pressure rod (81). An inclined surface is provided at the top of the pressure rod (81). The inclined surface at the top of the pressure rod (81) is slidably engaged with the sector gear (45). A positioning block (82) is fixedly connected to one side of the pressure rod (81). The positioning block (82) is used to cooperate with the positioning groove (591) to fix the position of the bevel gear (59).

2. The pressure-type proportioning mixing device according to claim 1, characterized in that, The piston block (27) slides against the inner wall of the feeding cylinder (23), and the piston block (27) is used to suck and discharge materials.

3. The pressure-type proportioning mixing device according to claim 1, characterized in that, The feed pipe (28) and the discharge pipe (29) are respectively equipped with a first check valve (281) and a second check valve (291). The first check valve (281) is used to control the material to flow only into the feed cylinder (23), and the second check valve (291) is used to control the material to flow only to the outside of the feed cylinder (23). The feed pipe (28) is connected to the material storage tank.

4. A method of using a pressure-type proportioning mixing device, implemented according to any one of claims 1 to 3, specifically comprising the following steps: Step 1: Connect the feed pipe (28) to the material storage tank, start the drive motor (3) and the drive mechanism that drives the stirring shaft (7) to rotate. The drive motor (3) drives the drive disc (4) to rotate. The drive disc (4) drives the active lifting rod (24) to rise and fall through the moving block (44) and the rotating connecting rod (46). The active lifting rod (24) drives the stirring shaft (7) to rise inside the feeding cylinder (23) through the fixed connecting rod (25) and the driven lifting rod (26), and sucks the material into the feeding cylinder (23) through the feed pipe (28). At the same time, the drive disc (4) drives the rotating disc (5) to rotate through the sector gear (45) and the bevel gear (59). Step 2: When the discharge pipe (29) is aligned with the transition pipe (51), the sector gear (45) disengages from the bevel gear (59), and at the same time, the discharge pipe (29) pushes the flip plate (56) into the interior of the relief groove (55), so that the discharge pipe (29) and the transition pipe (51) are connected. At the same time, the pressure rod (81) disengages from the sector gear (45), and under the rebound of the compression spring, it drives the positioning block (82) to insert into the interior of the positioning groove (591), thus fixing the position of the rotating disk (5). Step 3: The drive disc (4) continues to rotate, driving the piston block (27) to descend inside the feeding cylinder (23), discharging the material inside the feeding cylinder (23) through the discharge pipe (29), and entering the mixing tank (1) through the transition pipe (51) to participate in the mixing; Step 4: The stirring shaft (7) drives multiple sets of extension frames (71) to make circular motion under the drive mechanism. The multiple sets of extension frames (71) drive the pressure rod (72) to roll intermittently on the surface of the arc panel (6). The arc of the arc panel (6) pulls the fixed rod (61) so that the fixed rod (61) scrapes the material at the outlet of the transition pipe (51).

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