Grain dryer anti-blocking discharge mechanism

Abstract

The application discloses a kind of grain drying machine anti-blocking discharge mechanism, it is related to discharge mechanism technical field;To avoid the plugging during discharging;Including discharge pipe one, drive part and impurity cleaning part, the arc-shaped pipe is welded in the top outer wall of discharge pipe one, the impurity cleaning part includes: filter screen: it is fixed in the inner wall of both sides of discharge pipe one, and filter screen is overall inclinedly arranged;Moving plate: it is movably connected in the inner wall of the sliding slot opened in the side wall of discharge pipe one, and the outer wall of one side of moving plate is fixed with the limiting block that the opening in discharge pipe one inside is matched.Besides, the application can effectively filter and retain the impurities in grain by setting filter screen, by setting moving plate to slide along the side wall of discharge pipe one, so that when the opening of guide-out hole and the side wall of discharge pipe one coincides, the impurities filtered on the surface of filter screen can be guided out through guide-out hole, so as to avoid the plugging of filter hole on the surface of filter screen by impurities.

Description

Technical Field

[0001] This invention relates to the field of discharge mechanism technology, and in particular to an anti-clogging discharge mechanism for a grain dryer. Background Technology

[0002] A grain dryer is a device that dries grain using hot air. It is mainly suitable for large-scale grain drying. After the grain is dried, it can be discharged by opening the valve at the bottom of the grain dryer. The above is the working process of a traditional grain dryer. Although this structure and method can achieve grain discharge, when some grain is not completely dried during the discharge process using the valve, it will adhere to the inner surface of the valve, causing blockage of the valve and the discharge pipe. At the same time, since the discharged grain has not been screened, it contains various impurities such as sand and gravel. However, if a filter screen is installed in the discharge pipe, as filtration continues, the impurities trapped in the filter screen will accumulate on the surface of the filter screen, causing blockage of the filter screen pores, which will still lead to blockage during grain discharge. Therefore, it is necessary to design a discharge mechanism that can effectively ensure that the grain is screened and that the screened impurities are cleaned in a timely manner, so as to facilitate the periodic discharge of grain.

[0003] According to the search, Chinese patent application number 201910224525.6 discloses a grain discharge system for a grain dryer, which includes a collection seat, two side plates welded to the top of the collection seat, the same dryer welded to the side of the two side plates that are close to each other, a fixed box fixedly installed in the discharge port of the dryer, a blocking ball movably installed in the fixed box, and a discharge hole opened on the bottom inner wall of the fixed box.

[0004] The grain discharge system for a grain dryer in the aforementioned patent has the following shortcomings: Although impurities can be filtered using sieve plates and filter plates, when impurities accumulate to a certain extent on the surface of the filter plates and sieve plates, they will clog the filter holes and sieve openings of the filter plates and sieve plates, which will also cause blockage when the grain is discharged. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-clogging discharge mechanism for a grain dryer.

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

[0007] A grain dryer anti-clogging discharge mechanism includes a discharge pipe, a drive unit, and an impurity cleaning unit. The top outer wall of the discharge pipe is welded with an arc-shaped tube. The impurity cleaning unit includes:

[0008] Filter screen: It is fixed to the inner wall of both sides of the discharge pipe, and the filter screen is set at an angle.

[0009] Movable plate: It is movably connected to the inner wall of the chute opened on one side wall of the discharge pipe, and a limiting block adapted to an internal opening of the discharge pipe is fixed on the outer wall of one side of the movable plate.

[0010] Connecting piece: It is welded to the outer wall of the other side of the moving plate;

[0011] U-shaped plate: It is welded to the outer wall of one side of the discharge pipe, and the inner wall of the through hole opened on the surface of the U-shaped plate is movably connected with a sleeve rod.

[0012] Spring 1: It is sleeved on the outer wall of the circumference of the sleeve rod, and the two ends of Spring 1 are respectively fixed to the bottom outer wall of the connecting piece and the top outer wall of the U-shaped piece by pins;

[0013] Outlet hole: It is formed on the surface of the moving plate;

[0014] Rotating plate: Its two sides are movably connected to the inner walls of the two sides of the arc-shaped tube via rotating shafts.

[0015] Preferably, the outer walls of both sides of the discharge pipe are fixed with connecting frames, the top outer wall of the connecting frame is fixed with a receiving cylinder, the inner wall of the through hole at the bottom of the receiving cylinder is movably connected with a sliding rod, the top outer wall of the sliding rod is fixed with an annular piece by a pin, and the same spring is welded between the top outer wall of the annular piece and the top inner wall of the receiving cylinder.

[0016] Preferably, a perforated block is fixed to the outer wall of the bottom of the slide rod, and a sealing assembly is movably connected to the inner wall of the through hole opened on the surface of the perforated block. The sealing assembly includes a T-shaped rod and a sealing plate. The T-shaped rod is fixed to the outer wall of one side of the sealing plate by a pin, and the outer circumference of the T-shaped rod is movably connected to the inner wall of the through hole opened on the surface of the perforated block.

[0017] As a preferred embodiment of the present invention, the driving unit includes a gasket fixed to one side outer wall of the discharge pipe and an electric telescopic rod fixed to the top outer wall of the gasket.

[0018] As a preferred embodiment of the present invention: the output end of the electric telescopic rod is fixed with a drive rod by a pin, the end of the drive rod away from the electric telescopic rod is fixed with a drive plate, the surface of the drive plate is provided with an oblong hole, and a bent rod adapted to the inner diameter of the oblong hole is fixed on one side of the outer wall of the sealing plate.

[0019] As a preferred embodiment of the present invention: a rotating frame is movably connected between the inner walls of the two sides of the discharge pipe, and actuating teeth are welded to the outer walls of both sides of the rotating frame. The rotating frame and the rotating plate are driven by pulleys and belts. A rack is welded to one side of the outer wall of the drive plate through a middle rod, and a gear that meshes with the rack is connected to the outer circumference of the rotating frame through a key.

[0020] Furthermore: a rectangular block is fixed to the outer circumference of one of the slide bars, and a trapezoidal block is welded to one side of the outer wall of the rectangular block via an extension rod.

[0021] As a further embodiment of the present invention: an L-shaped plate is fixed to one side of the outer wall of the discharge pipe, and an installation column is movably connected to the inner wall of the through hole opened on the surface of the L-shaped plate. A hammer block is fixed to one end of the installation column, and a spring three is sleeved on the outer circumference of the installation column. The two ends of the spring three are respectively welded to the outer wall of one side of the hammer block and the outer wall of one side of the L-shaped plate.

[0022] As a further embodiment of the present invention: a U-shaped frame is fixed to the end of the mounting column away from the hammer block, and extrusion rollers are welded to the inner walls on both sides of the U-shaped frame.

[0023] As a further embodiment of the present invention: a top block is fixed to the bottom outer wall of one of the sealing plates.

[0024] The beneficial effects of this invention are as follows:

[0025] 1. By setting up a filter screen, impurities in the grain can be effectively filtered and retained. By setting the moving plate to slide along one side wall of the discharge pipe, when the outlet hole and the opening of one side wall of the discharge pipe are aligned, the impurities filtered on the surface of the filter screen can be discharged through the outlet hole, thereby avoiding the impurities from clogging the filter holes on the surface of the filter screen and affecting the normal discharge of grain.

[0026] 2. By setting a rotating plate, the grain inside the arc-shaped tube can be moved during rotation, and the grain adhering to the inner wall of the arc surface of the receiving cylinder can be cleaned, thereby preventing the grain from clogging inside the arc-shaped tube. At the same time, when the rotating plate moves to a horizontal position, it can also seal the receiving cylinder to prevent the grain from overflowing from the outlet hole when cleaning impurities.

[0027] 3. By setting an oblong hole, the vertical movement of the drive plate can be converted into the lateral movement of the sealing component. This allows the sealing component to detach from the bottom of the discharge pipe when grain needs to be discharged. The sealing component can effectively keep the inside of the discharge pipe clean and prevent the entry of external particles.

[0028] 4. By setting up a rotating frame and actuating teeth, the grain in the discharge pipe can be agitated during its rotation, thereby preventing the grain from getting blocked in the discharge pipe and ensuring smooth discharge of the grain.

[0029] 5. By setting a hammer block, the outer wall of the discharge pipe can be hammered, causing the discharge pipe to vibrate after being hammered. This vibration can accelerate the discharge of grain adhering to the inner wall of the discharge pipe, ensuring the discharge effect. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging discharge mechanism for a grain dryer proposed in this invention;

[0031] Figure 2 This is a schematic diagram of the side structure of an anti-clogging discharge mechanism for a grain dryer proposed in this invention;

[0032] Figure 3 This is a schematic diagram of the overall exploded structure of an anti-clogging discharge mechanism for a grain dryer proposed in this invention;

[0033] Figure 4 This is a schematic diagram of the main structure of an anti-clogging discharge mechanism for a grain dryer proposed in this invention;

[0034] Figure 5 This is a schematic diagram of a partial structure of the main body of an anti-clogging discharge mechanism for a grain dryer proposed in this invention;

[0035] Figure 6 This is a schematic diagram of the main exploded structure of the anti-clogging discharge mechanism of a grain dryer proposed in this invention;

[0036] Figure 7 This is a schematic cross-sectional view of the main body of the anti-clogging discharge mechanism of a grain dryer proposed in this invention;

[0037] Figure 8 This is a schematic diagram of the exploded structure of the hammer section of the anti-clogging discharge mechanism of a grain dryer proposed in this invention.

[0038] In the diagram: 1-Discharge pipe 1, 2-Connecting frame, 3-Arc-shaped pipe, 4-Accommodation cylinder, 5-Drive rod, 6-Drive plate, 7-Extrusion roller, 8-Pulley, 9-Gear, 10-U-shaped frame, 11-Mounting column, 12-Intermediate rod, 13-Slide rod, 14-Rack, 15-T-shaped rod, 16-Sealing plate, 17-Oval hole, 18-Gasket, 19-Electric telescopic rod, 20-Rotating plate, 21-Belt, 22- 23-Connecting piece, 24-Top block, 25-Hole block, 26-Toggle tooth, 27-Rotating frame, 28-Moving plate, 29-Spring 1, 30-U-shaped piece, 31-Outlet hole, 32-Sleeve rod, 33-Filter screen, 34-Limiting block, 35-Spring 2, 36-Annular piece, 37-Trapezoidal block, 38-Extension rod, 39-Rectangular block, 40-L-shaped plate, 41-Hammering block, 42-Spring 3. Detailed Implementation

[0039] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0040] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0041] In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 patent and simplifying the description, and do not limit the device, structure or element to have a specific orientation, or to be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0042] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0043] Example 1:

[0044] A grain dryer anti-clogging discharge mechanism, such as Figure 1-8 As shown, it includes a discharge pipe 1, a drive unit, and an impurity cleaning unit. An arc-shaped pipe 3 is welded to the outer wall of the top of the discharge pipe 1. The impurity cleaning unit includes:

[0045] Filter screen 33: It is fixed to the inner walls of both sides of the discharge pipe 1 by bolts, and the filter screen 33 is set in an inclined position.

[0046] Movable plate 28: It is slidably connected to the inner wall of the groove opened on the side wall of the discharge pipe 1, and a limiting block 34 adapted to the internal opening of the discharge pipe 1 is fixed on one side of the outer wall of the movable plate 28 by bolts.

[0047] Connecting piece 22: It is welded to the outer wall of the other side of the movable plate 28;

[0048] U-shaped piece 30: It is welded to the outer wall of one side of the discharge pipe 1, and the inner wall of the through hole opened on the surface of the U-shaped piece 30 is slidably connected to the sleeve rod 32.

[0049] Spring 29: It is sleeved on the outer circumference of the connecting rod 32, and the two ends of spring 29 are respectively fixed to the bottom outer wall of the connecting piece 22 and the top outer wall of the U-shaped piece 30 by pins;

[0050] Outlet hole 31: It is formed on the surface of the moving plate 28;

[0051] Rotating plate 20: Its two sides are rotatably connected to the inner walls of the two sides of the arc-shaped tube 3 via rotating shafts;

[0052] The top of the arc-shaped tube 3 is provided with a fixing hole, so that the arc-shaped tube 3 can be fixedly installed with the dryer by bolts. When it is necessary to discharge the grain, the arc-shaped tube 3 and the discharge pipe 1 can be used to allow the grain to fall freely under the action of gravity and be discharged from the bottom of the discharge pipe 1.

[0053] The filter screen 33 can effectively intercept and filter impurities such as sand and gravel in the grain during the grain discharge process, thus playing a screening role. As the grain discharge continues, impurities will clog the filter holes on the filter screen 33, which will cause the grain to accumulate on the top of the filter screen 33, thus preventing normal discharge. By lifting the bottom of the connecting rod 32, the connecting rod 32 will drive the moving plate 28 to slide upward along the sliding groove opened on the side wall of the discharge pipe 1. When the bottom of the outlet hole 31 is flush with one end of the filter screen 33, the impurities on the upper surface of the filter screen 33 can be discharged from the outlet hole 31 along the filter screen 33, thus facilitating efficient cleaning of impurities. The filter screen 33 is set in an inclined shape, which can accelerate the sliding rate of impurities and prevent impurities from accumulating on the surface of the filter screen 33.

[0054] The rotating plate 20 can achieve two functions:

[0055] 1. During the rotation process, the rotating plate 20 can turn over the grain in the arc tube 3, which can effectively prevent the grain from adhering to the inner wall of the arc surface of the arc tube 3, and at the same time can speed up the discharge rate of the grain and reduce the probability of blockage.

[0056] 2: When the rotating plate 20 rotates to a horizontal position, it can act as a barrier between the arc-shaped tube 3 and the discharge tube 1. This ensures that when impurities are cleaned using the discharge hole 31, the grain inside the dryer is prevented from continuing to fall, causing unscreened grain to be directly discharged through the discharge hole 31, thus affecting the discharge and screening process. The axis of the rotating shaft installed on both sides of the rotating plate 20 coincides with the axis of the center of the concentric circle containing the inner wall of the arc surface of the arc-shaped tube 3. This ensures that the outer wall of the rotating plate 20 can fit against the inner wall of the arc surface of the arc-shaped tube 3 during rotation.

[0057] Furthermore, the outer walls of both sides of the discharge pipe 1 are fixed with connecting brackets 2 by bolts, the top outer wall of the connecting bracket 2 is fixed with a receiving cylinder 4 by bolts, the inner wall of the through hole at the bottom of the receiving cylinder 4 is slidably connected with a sliding rod 13, the top outer wall of the sliding rod 13 is fixed with an annular piece 36 by a pin, and the same spring 2 35 is welded between the top outer wall of the annular piece 36 and the top inner wall of the receiving cylinder 4;

[0058] The bottom outer wall of the slide rod 13 is fixed with a perforated block 24 by bolts, and a sealing component is slidably connected to the inner wall of the through hole on the surface of the perforated block 24.

[0059] The sealing assembly can be used to seal the bottom of the discharge pipe 1 by sliding after the grain is discharged, which acts like a valve. Preferably, there are two sealing assemblies, which move relative to each other, thereby speeding up the efficiency of sealing and opening the bottom of the discharge pipe 1. At the same time, the perforated block 24 can act as a connector, allowing the sealing assembly to move laterally and also move vertically via the slide rod 13. The annular plate 36 can limit the lowest position of the sealing assembly relative to the bottom of the discharge pipe 1 in the lateral direction.

[0060] Furthermore, the sealing assembly includes a T-shaped rod 15 and a sealing plate 16. The T-shaped rod 15 is fixed to the outer wall of one side of the sealing plate 16 by a pin, and the outer circumferential wall of the T-shaped rod 15 is slidably connected to the inner wall of the through hole opened on the surface of the hole block 24.

[0061] The T-shaped rod 15 allows the sealing plate 16 to move laterally, thereby enabling the sealing plate 16 to block and open the bottom of the discharge pipe 1 by moving the T-shaped rod 15.

[0062] Furthermore, a top block 23 is bolted to the bottom outer wall of one of the sealing plates 16;

[0063] By setting a top block 23, the bottom outer wall of the sleeve rod 32 can be lifted during the upward movement of the sealing component, thereby achieving the cleaning of impurities.

[0064] Furthermore, the drive unit includes a gasket 18 fixed to the outer wall of one side of the discharge pipe 1 by bolts and an electric telescopic rod 19 fixed to the top outer wall of the gasket 18 by bolts. The output end of the electric telescopic rod 19 is fixed with a drive rod 5 by a pin. The end of the drive rod 5 away from the electric telescopic rod 19 is fixed with a drive plate 6 by bolts. The surface of the drive plate 6 is provided with a waist-shaped hole 17. The outer wall of one side of the sealing plate 16 is fixed with a bent rod 25 that matches the inner diameter of the waist-shaped hole 17 by bolts.

[0065] The electric telescopic rod 19 can drive the drive plate 6 to move in the vertical direction through the drive rod 5. By providing the waist-shaped hole 17, the vertical movement of the drive plate 6 can be converted into the lateral movement of the bent rod 25, so that the bent rod 25 can be used to drive the sealing assembly to move in the lateral direction.

[0066] When the bent rod 25 moves to fit against the inner wall of one end of the waist-shaped hole 17, the limiting effect of the waist-shaped hole 17 prevents the sealing assembly from moving laterally when the drive plate 6 continues to move upward in the vertical direction. At this time, the sealing plate 16 on the sealing assembly moves to the outside of the discharge pipe 1. When the drive plate 6 continues to move upward in the vertical direction, the sealing assembly and the drive plate 6 move upward as a whole. The sliding rod 13 and the receiving cylinder 4 can guide the movement path of the sealing assembly.

[0067] Furthermore, a rotating frame 27 is rotatably connected between the inner walls of both sides of the discharge pipe 1. Actuating teeth 26 are welded to the outer walls of both sides of the rotating frame 27. The rotating frame 27 and the rotating plate 20 are driven by a pulley 8 and a belt 21.

[0068] One of the drive plates 6 has a rack 14 welded to one side of its outer wall via an intermediate rod 12, and the outer circumferential wall of the rotating frame 27 is connected by a key to a gear 9 that meshes with the rack 14.

[0069] By setting a rack 14, the drive gear 9 can be rotated during the upward movement of the drive plate 6, thereby causing the agitator 26 and the rotating frame 27 to turn over the grain above the filter screen 33 during rotation, which can reduce the clogging problem of grain in the discharge pipe 1. The synchronous rotation of the rotating plate 20 can be achieved by setting a pulley 8 and a belt 21.

[0070] In this embodiment, the arc-shaped tube 3 is first fixed on the discharge end of the dryer. When the grain needs to be discharged, the electric telescopic rod 19 is first started. The electric telescopic rod 19 drives the drive plate 6 to move upward in the vertical direction. During the upward movement of the drive plate 6, the sealing component can be driven to move outward in the horizontal direction through the waist-shaped hole 17, so that the grain is discharged through the discharge pipe 1 under the action of gravity.

[0071] During the upward movement of the drive plate 6, the rotating plate 20 and the rotating frame 27 can respectively move the grain in the arc-shaped tube 3 and the discharge tube 1, thereby preventing the grain from clogging during discharge and ensuring efficient discharge. When the sealing plate 16 of the sealing assembly is completely detached from the bottom of the discharge tube 1, the bent rod 25 moves to the inner surface of one end of the waist-shaped hole 17. At this time, when the drive plate 6 continues to move vertically, the sealing assembly and the drive plate 6 move upward as a whole. During the upward movement of the sealing assembly, the top block 23 can be driven to push the bottom of the sleeve rod 32, so that the moving plate 28 begins to gradually move upward along the groove opened on the side wall of the discharge tube 1. During this process, when the top of the discharge hole 31 is about to... When the rotating plate 20 contacts the bottom of the filter screen 33, it moves to a horizontal position. At this time, the drive plate 6 stops moving. The purpose of this is to completely discharge the grain that has not been completely screened in the discharge pipe 1 and the arc-shaped pipe 3 before cleaning the impurities. Then, the electric telescopic rod 19 is activated again, which drives the drive plate 6 to move upward again. During this process, the outlet hole 31 gradually overlaps with the opening on the side wall of the discharge pipe 1, so that the impurities can slide down along the surface of the filter screen 33. Since the accommodating cylinder 4 has an arc-shaped structure, it effectively ensures that the rotating plate 20 can rotate within a small range along the inner wall of the arc surface of the arc-shaped pipe 3 during the upward movement of the moving plate 28, thereby ensuring that the grain in the dryer will not leak during the cleaning of impurities.

[0072] Example 2:

[0073] A grain dryer anti-clogging discharge mechanism, such as Figure 8 As shown, in order to strike the surface of the discharge pipe 1 and accelerate the discharge of grain through vibration, this embodiment makes the following additions based on embodiment 1: a rectangular block 39 is fixed to the outer circumference of one of the slide rods 13 by bolts; a trapezoidal block 37 is welded to one side of the outer wall of the rectangular block 39 by an extension rod 38; an L-shaped plate 40 is fixed to one side of the outer wall of the discharge pipe 1 by bolts; an installation column 11 is slidably connected to the inner wall of the through hole on the surface of the L-shaped plate 40; a hammer block 41 is fixed to one end of the installation column 11 by bolts; a spring 3 42 is sleeved on the outer circumference of the installation column 11, and the two ends of the spring 3 42 are respectively welded to one side of the outer wall of the hammer block 41 and one side of the outer wall of the L-shaped plate 40; a U-shaped frame 10 is fixed to the end of the installation column 11 away from the hammer block 41 by bolts; and extrusion rollers 7 are welded to the inner walls on both sides of the U-shaped frame 10.

[0074] By setting a trapezoidal block 37, as it moves upward with the slide bar 13, it can exert a squeezing effect on the outer wall of the circumference of the extrusion roller 7, thereby causing the hammer block 41 to detach from the outer surface of the discharge pipe 1. After the trapezoidal block 37 detaches from the outer wall of the extrusion roller 7, the hammer block 41 can be reset under the elastic force of the spring 3 42. During the reset process, the hammer block 41 can be used to strike the surface of the discharge pipe 1, thereby causing the inner wall of the discharge pipe 1 to vibrate and accelerating the discharge of grain.

[0075] The above description represents a preferred embodiment of the present invention, but it is not the only embodiment of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, combined with existing technology or common knowledge, and within the spirit and principles of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A grain dryer anti-clogging discharge mechanism, comprising a discharge pipe (1), a drive unit, and an impurity cleaning unit, characterized in that, The top outer wall of the discharge pipe (1) is welded with an arc-shaped pipe (3), and the impurity cleaning section includes: Filter screen (33): It is fixed to the inner walls of both sides of the discharge pipe (1), and the filter screen (33) is set in an inclined position. Movable plate (28): It is movably connected to the inner wall of the chute opened on the side wall of the discharge pipe (1), and a limiting block (34) is fixed on one side of the outer wall of the movable plate (28) and adapted to the internal opening of the discharge pipe (1). Connecting piece (22): It is welded to the outer wall of the other side of the movable plate (28); U-shaped piece (30): It is welded to the outer wall of one side of the discharge pipe (1), and the inner wall of the through hole opened on the surface of the U-shaped piece (30) is movably connected to the sleeve rod (32). Spring 1 (29): It is sleeved on the outer circumference of the sleeve rod (32), and the two ends of spring 1 (29) are respectively fixed to the bottom outer wall of the connecting piece (22) and the top outer wall of the U-shaped piece (30) by pins; Outlet hole (31): It is formed on the surface of the moving plate (28); Rotating plate (20): Its two sides are movably connected to the inner walls of the two sides of the arc-shaped tube (3) through rotating shafts; The discharge pipe (1) has connecting frames (2) fixed on both outer walls. The top outer wall of the connecting frame (2) has a receiving cylinder (4). The inner wall of the through hole at the bottom of the receiving cylinder (4) is movably connected to a sliding rod (13). The top outer wall of the sliding rod (13) is fixed with an annular piece (36) by a pin. The top outer wall of the annular piece (36) and the top inner wall of the receiving cylinder (4) are welded together with the same spring (35). The bottom outer wall of the slide bar (13) is fixed with a hole block (24), and the inner wall of the through hole opened on the surface of the hole block (24) is movably connected with a sealing assembly. The sealing assembly includes a T-shaped rod (15) and a sealing plate (16). The T-shaped rod (15) is fixed to the outer wall of one side of the sealing plate (16) by a pin, and the outer circumference of the T-shaped rod (15) is movably connected to the inner wall of the through hole opened on the surface of the hole block (24). The drive unit includes a gasket (18) fixed to the outer wall of one side of the discharge pipe (1) and an electric telescopic rod (19) fixed to the top outer wall of the gasket (18). The output end of the electric telescopic rod (19) is fixed with a drive rod (5) by a pin. The end of the drive rod (5) away from the electric telescopic rod (19) is fixed with a drive plate (6). The surface of the drive plate (6) is provided with a waist-shaped hole (17). A bent rod (25) that matches the inner diameter of the waist-shaped hole (17) is fixed on the outer wall of one side of the sealing plate (16). The electric telescopic rod (19) drives the drive plate (6) to move in the vertical direction through the drive rod (5). The waist-shaped hole (17) can convert the vertical movement of the drive plate (6) into the lateral movement of the bent rod (25). The bent rod (25) can be used to drive the sealing assembly to move in the lateral direction. One of the sealing plates (16) has a top block (23) fixed to its bottom outer wall. The top block (23) can lift the bottom outer wall of the sleeve rod (32) during the upward movement of the sealing assembly, thereby cleaning the impurities.

2. The anti-clogging discharge mechanism for a grain dryer according to claim 1, characterized in that, A rotating frame (27) is movably connected between the inner walls of the two sides of the discharge pipe (1). A moving tooth (26) is welded to the outer walls of both sides of the rotating frame (27). The rotating frame (27) and the rotating plate (20) are driven by a pulley (8) and a belt (21). A rack (14) is welded to one side of the outer wall of the drive plate (6) through a middle rod (12). A gear (9) that meshes with the rack (14) is connected to the outer wall of the circumference of the rotating frame (27) through a key.

3. The anti-clogging discharge mechanism for a grain dryer according to claim 2, characterized in that, wherein... A rectangular block (39) is fixed to the outer circumference of one of the slide bars (13), and a trapezoidal block (37) is welded to one side of the outer wall of the rectangular block (39) via an extension rod (38).

4. The anti-clogging discharge mechanism for a grain dryer according to claim 3, characterized in that, An L-shaped plate (40) is fixed to one side of the outer wall of the discharge pipe (1). An installation column (11) is movably connected to the inner wall of the through hole opened on the surface of the L-shaped plate (40). A hammer block (41) is fixed to one end of the installation column (11). A spring three (42) is sleeved on the outer circumference of the installation column (11). The two ends of the spring three (42) are respectively welded to the outer wall of the hammer block (41) and the outer wall of the L-shaped plate (40).

5. The anti-clogging discharge mechanism for a grain dryer according to claim 4, characterized in that, The mounting column (11) is fixed with a U-shaped frame (10) at one end away from the hammer block (41), and the inner walls of the U-shaped frame (10) are welded with extrusion rollers (7).

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