Grain surface air conditioning system with airtight door

Abstract

The application relates to the technical field of grain surface air conditioning, and discloses a grain surface air conditioning system with airtight doors, which comprises a machine case and two air outlets on the front wall of the machine case, a shaft tube disc is rotationally connected in the front wall of the machine case, the left and right sides of the shaft tube disc are respectively provided with through grooves I which are connected with the air outlets, the upper and lower sides of the shaft tube disc are respectively provided with through grooves II, the front and back sides of the through grooves II are slidably connected with abutting discs, and the opposite side edges of the abutting discs are provided with sealing rings I. The shaft tube disc and the abutting disc are stepwise driven before and after fumigation of a granary, the sealing ring I is vertically extruded to seal the air outlet or is vertically reset, the sealing ring II is extruded and shrunk into two air pipes by cooperating with a valve cover, the sealing member is prevented from being abraded and failed, double airtight door functions are provided, the sealing effect of the air conditioner is ensured, dust on the surface of an elastic filter disc can be fully cleaned and collected, dust and phosphine are prevented from combining to form sticky particles to block the elastic filter disc, and the stable use of the elastic filter disc is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain surface air conditioning, in particular to a grain surface air conditioning system with airtight doors. BACKGROUND

[0002] In modern grain storage, in order to maintain the storage state of the grain, a special air conditioner for the grain storehouse is usually installed to adjust the temperature and humidity inside the grain storehouse. In addition, during the storage of the grain, grain fumigation is an important operation for killing pests in grain storage, that is, when the pests of the grain (including finished grain, raw grain, oil, dried potatoes, seed grain, etc.) are infected to a certain extent, a certain amount of aluminum phosphide, calcium phosphide, zinc phosphide and other drugs are buried in the grain pile under sealed conditions, so that the above phosphides absorb water in the grain pile and other spaces, produce a chemical reaction, release phosphine toxic gas, and achieve the effect of killing various pests and eggs in the grain pile.

[0003] The patent for invention with publication number CN119934607A discloses a gas-tight grain storehouse air conditioner for dynamic fumigation corrosion prevention, which comprises an air conditioner main body, a sealing structure is arranged on the side of the air conditioner main body, a air supply structure is installed inside the air conditioner main body, a connecting structure is connected to the side of the sealing structure, a fastening structure is connected between the connecting structure and the sealing structure, a water collecting structure is arranged on the bottom side of the air supply structure, a release structure is connected between the water collecting structure and the sealing structure; the sealing structure can prevent corrosive gases from entering the inside of the air conditioner, the air supply structure can ensure smooth air flow, the connecting structure can facilitate the connection of the pipeline, ensuring good sealing effect, the fastening structure can further improve the connection strength of the air duct, the water collecting structure can collect condensed water, and the release structure can store the collected condensed water, avoiding the re-evaporation of the condensed water.

[0004] The air-tight grain bin air conditioner in the above patent can control the linear movement of the sealing plate to close the air outlet before the grain bin is fumigated, and the sealing plate is hard pressed and sealed by the connecting pipe on the inner side of the sealing plate, that is, the side close to the inside of the air conditioner, and the sealing pipe drives the gasket to press and seal the sealing plate on the outer side of the sealing plate, that is, the side close to the air guide pipe. Both sides of the sealing mechanism are actuated by springs. Although both sides of the sealing mechanism are provided with inclined surfaces and protrusions for being pressed and separated by the sealing plate, the sealing plate will slide and rub the end surface of the sealing mechanism when it enters and exits, and the stronger the spring force, the stronger the sealing performance, but it will also cause the sealing mechanism to wear more seriously, the sealing is easy to fail, and the overall sealing performance is poor because only one layer of sealing door function of the sealing plate is provided. The air guide pipe lacks the necessary filter screen, and the dust prevention effect of the fan is not good. When the filter screen is arranged in the air guide pipe, the outer end of the air guide pipe lacks a sealing mechanism, and the surface of the filter screen has dust after long-term use. When phosphine combines with dust in a humid environment, sticky substances are easily formed, causing the pores of the filter screen to be blocked, increasing the wind resistance. SUMMARY

[0005] The purpose of the present application is to solve the problems of general grain bin air conditioners in use, such as severe sealing wear, poor sealing performance, and fumigation easily causing filter screen blockage and increasing wind resistance. The present application provides a grain surface air conditioning system with a sealing door.

[0006] In order to achieve the above purpose, the present application specifically adopts the following technical scheme:

[0007] A grain surface air conditioning system with a sealing door, comprising a cabinet and two air ports of the front wall of the cabinet, a shaft pipe disc is rotatably connected in the front wall of the cabinet, the shaft pipe disc has a through slot one on the left and right sides for connecting the air ports, and has a through slot two on the upper and lower sides, the through slot two has a abutting disc slidingly connected on the front and rear sides, the opposite side edges of the abutting disc are provided with a sealing ring one, and the middle part of the cabinet is provided with a control assembly for adjusting the step-by-step action of the shaft pipe disc and the abutting disc.

[0008] The front ends of the two air ports are slidingly inserted with air pipes, the front and rear ends of the air pipes are provided with sealing rings two, the front end of the air pipe is slidingly inserted with a valve cover, the inner wall of the left air pipe is fixedly connected with a impact block and rotatably connected with a elastic filter disc, the front side of the elastic filter disc is rotatably provided with a cleaning cover, the lower wall of the left air pipe is provided with a dust outlet and slidingly inserted with a valve plate fixedly connected with the valve cover, the bottom of the dust outlet is threadedly connected with a collecting cylinder, and the air pipe is provided with an adjusting assembly for closing the valve cover and controlling the cleaning of the elastic filter disc.

[0009] Further, an air conditioner is installed in the rear part of the inner cavity of the cabinet, and the air conditioner has air pipes connected with the corresponding air ports on the left and right ends.

[0010] Further, the control assembly comprises a shaft tube wheel rotatably connected to the middle part of the shaft tube disc, a spiral groove is formed in the inner wall of the rear end of the shaft tube wheel, arc grooves are formed in the upper and lower sides of the front end of the shaft tube wheel, pin columns are movably connected to the arc grooves, symmetric guide plates are fixedly connected to the inner wall of the abutting disc, oblique grooves are formed in the guide plates, the pin columns are movably connected to the oblique grooves, the upper and lower ends of the pin columns are T-shaped, the radius of the sealing ring is greater than the radius of the air port, a guide groove is formed in the inner wall of the rear end of the shaft tube disc, and a telescopic cylinder is fixedly connected to the front end of the air conditioner and movably connected to the rear end of the shaft tube wheel, and a convex column is arranged on the lower wall of the output end of the telescopic cylinder and movably connected to the guide groove and the spiral groove.

[0011] Further, the guide groove is composed of a straight groove at the front side and a curved groove at the rear side, and the screw direction and pitch of the spiral groove and the curved groove are the same.

[0012] Further, the outer periphery of the rear end of the air pipe is provided with a flange sleeve, the flange sleeve is movably sleeved on the front end of the air port, and a fixed filter disc is arranged in the air pipe on the right side.

[0013] Further, the adjusting assembly comprises a threaded clamping rod rotatably connected to the outer wall of the air pipe, the threaded clamping rod is threadedly connected to the outer wall of the valve cover, tooth tubes are rotatably connected to the side walls of the air ports on both sides, two tooth grooves are formed in the outer wall of the shaft tube disc and meshingly connected to the tooth tubes, sealing sleeves rotatably connected to the tooth tubes are fixedly connected to the front ends of the air ports on both sides, the threaded clamping rod is movably clamped in the tooth tube, and the outer wall of the threaded clamping rod and the inner wall of the tooth tube are respectively provided with matching key grooves and key protrusions.

[0014] Further, a connecting plate is arranged between the valve covers on both sides, and air outlets are formed in the bottom parts of the valve covers on both sides.

[0015] Further, the adjusting assembly further comprises an L-shaped wedge rod rotatably connected to the middle part of the elastic filter disc, the cleaning cover is fixedly sleeved on the L-shaped wedge rod, brush hairs movably abutting against the elastic filter disc are arranged on the inner wall of the cleaning cover, the L-shaped wedge rod is movably and sealingly connected to the center of the valve cover, a ratchet belt wheel is arranged at the front end of the L-shaped wedge rod, the ratchet belt wheel comprises a ratchet wheel fixedly sleeved on the front end of the L-shaped wedge rod and a belt wheel one rotatably sleeved on the periphery of the ratchet wheel, the inner wall of the belt wheel one is provided with elastic ratchet claws movably connected to the ratchet wheel, a belt wheel two is arranged at the front end of the threaded clamping rod on the left side, the radius of the belt wheel two is greater than the radius of the belt wheel one, and a transmission belt is movably sleeved between the belt wheel one and the belt wheel two.

[0016] Further, the elastic filter disc rear end lower side is slidably clamped with an elastic wedge column, the elastic force of the elastic wedge column is smaller than that of the elastic filter disc, the elastic wedge column and the L-shaped wedge rod have mutual abutting inclined surfaces, the left side air pipe lower wall has a groove corresponding to the elastic wedge column, the groove right wall is designed as a slope, the elastic wedge column bottom end is designed as a round corner, the elastic filter disc rear end has a protrusion movably abutting with the impact block, and the protrusion and the impact block are both circumferentially arranged and are three respectively.

[0017] Further, the valve plate front side is provided with a valve port staggered with the ash discharge port, and the ash discharge port is conical and located at the elastic filter disc front end lower side.

[0018] The beneficial effects of the present application are as follows:

[0019] 1、The control assembly drives the shaft pipe disc to deflect first to make the through groove two and the air port butt joint before the grain storehouse fumigation, then drives the two abutting discs in the through groove two to move back, so that the sealing ring one on the front and back sides is vertically extruded to the air port inner wall, the sealing ring one is automatically sealed to the gap between the abutting disc and the air port inner wall after pressure deformation, and the control assembly is reset, so that the abutting disc and the shaft pipe disc are also step-actuated, thereby avoiding the failure caused by the wear of the sealing element, the cooperation adjustment assembly drives the valve cover to extrude the sealing ring two and shrink into the two air pipes, and the front end of the air pipe is sealed, thereby providing a double sealing door function during fumigation, and ensuring the sufficient sealing effect of the air conditioner interior.

[0020] 2、The adjustment assembly drives the cleaning cover to continuously rotate to clean the surface of the elastic filter disc before fumigation, and the elastic filter disc is intermittently deflected to collide with the impact block to vibrate, so that the dust is fully cleaned, the dust and phosphine are prevented from combining to form sticky particles to block the elastic filter disc, the subsequent stable use of the elastic filter disc is ensured, the valve cover is synchronously shrunk to move, so that the valve plate opens the ash discharge port, thereby facilitating the collection by the collecting cylinder, and the valve plate is reset with the adjustment assembly during the subsequent air conditioner work, so that the ash discharge port is automatically closed, and the airflow is prevented from driving the dust to fly to the surface of the elastic filter disc. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional structure diagram of the air conditioning system of the present application;

[0022] Figure 2 is a three-dimensional structure diagram of the air conditioning system case and air pipe part of the present application;

[0023] Figure 3 is a three-dimensional sectional view of the air conditioning system case part of the present application;

[0024] Figure 4 is a three-dimensional sectional view of the shaft pipe disc and abutting disc part of the air conditioning system of the present application;

[0025] Figure 5This is a three-dimensional exploded sectional view of the shaft tube disc and the contact disc portion of the air conditioning system of the present invention;

[0026] Figure 6 This is a three-dimensional sectional view of the air conditioning system casing and ductwork of the present invention;

[0027] Figure 7 This is a three-dimensional sectional view of the air duct and collection cylinder portion of the air conditioning system of the present invention;

[0028] Figure 8 This is a three-dimensional sectional view of the air duct portion of the air conditioning system of the present invention.

[0029] Reference numerals: 1. Chassis; 11. Air conditioner; 12. Duct; 13. Gear tube; 14. Sealing sleeve; 2. Shaft tube disc; 21. Guide groove; 22. Abutment disc; 23. Sealing ring one; 24. Guide plate; 25. Inclined groove; 3. Shaft tube wheel; 31. Arc groove; 32. Pin; 33. Spiral groove; 34. Telescopic cylinder; 35. Protruding column; 4. Air duct; 41. Sealing ring two; 42. Impact block; 43. Elastic filter disc; 44. Protrusion; 45. Elastic wedge; 46. Valve plate; 47. Collection cylinder; 48. Valve cover; 5. L-shaped wedge rod; 51. Cleaning cover; 52. Threaded clamp rod; 6. Fixed filter disc. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] Example 1, as Figures 1-8 As shown, a grain surface air conditioning system with a sealed door includes a casing 1 and two air inlets on the front wall of the casing 1. A shaft tube disk 2 is rotatably connected to the front wall of the casing 1. The shaft tube disk 2 has a through groove 1 on the left and right sides to connect with the air inlets, and a through groove 2 on the upper and lower sides. Abutment disk 22 is slidably connected to the front and rear sides of the through groove 2. A sealing ring 23 is provided on the opposite edge of the abutment disk 22. The radius of the sealing ring 23 is larger than the radius of the air inlet. A control component for adjusting the step-by-step operation of the shaft tube disk 2 and the abutment disk 22 is provided in the middle of the casing 1.

[0032] Both air port front end is slidingly inserted with air pipe 4, both ends of air pipe 4 are provided with sealing ring two 41, the front end of air pipe 4 is slidingly inserted with valve cover 48, the inner wall of left air pipe 4 is fixedly connected with impact block 42 and rotatably connected with elastic filter disc 43, the front side of elastic filter disc 43 is rotatably provided with cleaning cover 51, the lower wall of left air pipe 4 is provided with ash discharge hole and slidingly inserted with valve plate 46 fixedly connected with valve cover 48, the front side of valve plate 46 is provided with valve port staggered with ash discharge hole, the ash discharge hole is conical and is located at the lower side of the front end of elastic filter disc 43, the bottom of ash discharge hole is threadedly connected with collecting cylinder 47, the upper air pipe 4 is provided with closing valve cover 48 and adjusting assembly for controlling cleaning elastic filter disc 43.

[0033] The rear end of air pipe 4 is provided with flange sleeve, the flange sleeve is slidingly sleeved on the front end of air port, and the right air pipe 4 is provided with fixed filter disc 6.

[0034] When the air conditioner is used, the cabinet 1 is partially installed on the outer wall of the grain depot, and the air port is inserted into the depot through the wall of the depot. The air pipe 4 is slidably inserted into the air port and located in the depot. The flange sleeve on the rear end of the air pipe 4 is connected and installed with the inner wall of the depot. The rear end of the air pipe 4 is in movable sealing abutment with the inner wall of the air port through the sealing ring 2 41. The left air pipe 4 is used for air inlet, and the right air pipe 4 is used for air outlet. Before fumigation of the depot, the driving control assembly first drives the shaft pipe disc 2 to deflect so that the through slot 2 is in abutment with the air port. The corresponding abutment disc 22 is turned into the air port. The abutment disc 22 is further turned to the left and right abutment discs 22, which are driven to move away from each other, so that the front and rear sealing rings 1 23 are vertically extruded against the inner wall of the air port. The sealing ring 1 23 is deformed under pressure to automatically fill and seal the gap between the abutment disc 22 and the inner wall of the air port, so as to seal the air port. When the control assembly is reset, the abutment disc 22 and the shaft pipe disc 2 are also stepwise actuated, so as to avoid wear and failure of the sealing element caused by sliding friction. In addition, when the control assembly operates to seal the air port, the adjusting assembly is automatically driven to make the valve cover 48 shrink into the two air pipes 4, and the front sealing ring 2 41 is used to seal the front end of the air pipe 4, so as to provide a double sealing door function during fumigation, and ensure sufficient sealing effect of the air conditioner. In addition, the adjusting assembly also drives the cleaning cover 51 to continuously rotate and clean the surface of the elastic filter disc 43. At the same time, the elastic filter disc 43 is intermittently deflected and vibrated by the impact block 42, so as to shake off dust with strong adhesion, so as to fully clean the dust and avoid the combination of dust and phosphine to form sticky particles to block the elastic filter disc 43, so as to ensure stable use of the elastic filter disc 43. During the shrinkage and movement of the valve cover 48, the valve cover 48 automatically drives the valve plate 46 to open the ash discharge port. When the ash discharge port is completely opened, the dust automatically falls into the collecting cylinder 47 to realize collection. When the control assembly drives the adjusting assembly to reset, the valve plate 46 is automatically reset with the adjusting assembly, so as to automatically close the ash discharge port. When the air conditioner works, the airflow will not scatter the dust in the collecting cylinder 47 to the surface of the elastic filter disc 43, and the collecting cylinder 47 can be rotated to clean the collected dust.

[0035] Further, the air conditioner 11 is installed in the rear part of the inner cavity of the cabinet 1. The air conditioner 11 has a duct 12 connected with the corresponding air port at the left and right ends.

[0036] In the embodiment two, on the basis of the above embodiment, the control assembly comprises a shaft tube wheel 3 rotatably connected to the middle of the shaft tube disc 2, a helical groove 33 is formed in the inner wall of the rear end of the shaft tube wheel 3, and an arc groove 31 is formed in the upper and lower sides of the front end of the shaft tube wheel 3; the upper and lower sides of the inner wall of the shaft tube disc 2 are slidably inserted with pin columns 32 movably connected with the arc groove 31; the inner wall of the abutting disc 22 is fixedly connected with symmetrical guide plates 24, and the guide plates 24 are provided with inclined grooves 25; the pin columns 32 are movably connected with the inclined grooves 25; the upper and lower ends of the pin columns 32 are T-shaped; the rear end of the inner wall of the shaft tube disc 2 is provided with a guide groove 21; the front end of the air conditioner 11 is fixedly connected with a telescopic cylinder 34 movably inserted into the rear end of the shaft tube wheel 3; and the lower wall of the output end of the telescopic cylinder 34 is provided with a convex column 35 movably connected with the guide groove 21 and the helical groove 33.

[0037] The guide groove 21 is composed of a straight groove at the front side and a curved groove at the rear side; and the helical groove 33 and the curved groove have the same screw direction and pitch.

[0038] When the two air ports need to be closed, the output end of the telescopic cylinder 34 is controlled to be elongated to drive the convex column 35 to move forward, the convex column 35 is pressed against the curved groove to drive the shaft tube disc 2 to deflect by 90 degrees, so that the abutting disc 22 is turned to the air port, and at the same time, the convex column 35 is pressed against the rear part of the helical groove 33 to drive the shaft tube wheel 3 to deflect, because the helical groove 33 and the curved groove have the same screw direction and pitch, the shaft tube wheel 3 deflects by 90 degrees at the same time, so that the shaft tube wheel 3 does not rotate relative to the shaft tube disc 2 before the shaft tube disc 2 deflects by 90 degrees, the abutting disc 22 does not drive the sealing ring 1 to move outward from the through groove 2, and friction damage is avoided.

[0039] Subsequently, the output end of the telescopic cylinder 34 drives the convex column 35 to continue to move forward, the convex column 35 limits the straight groove, so as to limit the subsequent deflection of the shaft tube disc 2, and the convex column 35 continues to move forward to press the front part of the helical groove 33, so as to drive the shaft tube wheel 3 to deflect, the arc groove 31 is pressed against the pin columns 32 on the two sides to move backward, the pin columns 32 immediately press the inclined grooves 25 on the two sides, the guide plates 24 drive the two abutting discs 22 in the through groove 2 to move backward, so that the sealing ring 1 is completely closed, the sealing ring 1 is actively and vertically pressed, wear and failure of the sealing ring 1 are avoided, and compared with spring pressing sealing, the hard transmission of the control assembly is used, so that the sealing control is safe, reliable and stable.

[0040] In the embodiment three, on the basis of the above embodiment, the adjustment assembly comprises a threaded clamping rod 52 rotatably connected to the outer wall of the air pipe 4, the threaded clamping rod 52 is threadedly connected with the outer wall of the valve cover 48, the side walls of the two air ports are rotatably connected with tooth pipes 13, the outer wall of the shaft tube disc 2 is circumferentially provided with two tooth grooves meshingly connected with the tooth pipes 13, the front ends of the two air ports are fixedly connected with sealing sleeves 14 rotatably connected with the tooth pipes 13, the threaded clamping rod 52 is slidably clamped in the tooth pipe 13, and the outer wall of the threaded clamping rod 52 and the inner wall of the tooth pipe 13 are respectively provided with matching key grooves and key protrusions.

[0041] The connecting plate is installed between the two valve covers 48, and the air outlets are arranged on the bottom of the two valve covers 48.

[0042] The detachable design of the threaded clamping rod 52 and the toothed pipe 13 facilitates the installation of the air pipe 4. After the air pipe 4 is installed in place, the shaft pipe disc 2 is driven to deflect by the control assembly, the toothed groove on the outer wall of the shaft pipe disc 2 is immediately engaged to drive the toothed pipe 13 to rotate, the toothed pipe 13 in turn drives the threaded clamping rod 52 to rotate, the threaded clamping rod 52 in turn engages to drive the valve cover 48 to move and shrink into the air pipe 4, and the air outlets are simultaneously moved into the air pipe 4. After the air outlets are completely moved into the air pipe 4, the valve cover 48 extrudes the sealing ring two 41 at the front end of the air pipe 4, thereby sealing the front end connecting gap, further strengthening the sealing effect of the air conditioner interior by the shaft pipe disc 2 part, and facilitating the stable driving of the valve cover 48 by the two threaded clamping rods 52 on the two sides by means of the connecting plate. The design that the air outlets are arranged on the bottom of the two valve covers 48 facilitates the staggered air inlet and outlet directions, and ensures the air treatment capacity.

[0043] In the fourth embodiment, on the basis of the above-mentioned embodiments, the adjusting assembly further comprises an L-shaped wedge rod 5 rotatably connected in the middle of the elastic filter disc 43, the cleaning cover 51 is fixedly sleeved on the L-shaped wedge rod 5, the inner wall of the cleaning cover 51 is provided with brush hairs in active abutment with the elastic filter disc 43, the L-shaped wedge rod 5 is in sliding sealing connection with the center of the valve cover 48, the front end of the L-shaped wedge rod 5 is provided with a ratchet wheel, the ratchet wheel comprises a ratchet wheel fixedly sleeved on the front end of the L-shaped wedge rod 5 and a belt wheel one rotatably sleeved on the outer periphery of the ratchet wheel, the inner wall of the belt wheel one is provided with elastic pawls (not shown in the figure) in active clamping connection with the ratchet wheel, the front end of the left threaded clamping rod 52 is provided with a belt wheel two, the radius of the belt wheel two is greater than that of the belt wheel one, and the transmission belt is movably sleeved between the belt wheel two and the belt wheel one.

[0044] The threaded clamping rod 52 drives the belt wheel two to rotate, the belt wheel two drives the belt wheel one to rotate by means of the transmission belt, the belt wheel one drives the L-shaped wedge rod 5 to rotate by means of the elastic pawls, the L-shaped wedge rod 5 is accelerated to rotate due to the fact that the radius of the belt wheel two is greater than that of the belt wheel one, and the L-shaped wedge rod 5 drives the cleaning cover 51 to rotate and clean the front wall of the elastic filter disc 43 by means of the brush hairs on the inner wall of the cleaning cover 51.

[0045] The elastic wedge column 45 is movably sleeved on the lower side of the rear end of the elastic filter disc 43, the elastic force of the elastic wedge column 45 is smaller than that of the elastic filter disc 43, the elastic wedge column 45 and the L-shaped wedge rod 5 have inclined surfaces in mutual abutment, the lower wall of the left air pipe 4 has a groove corresponding to the elastic wedge column 45, the right wall of the groove is designed in a slope shape, the bottom end of the elastic wedge column 45 is designed in a round corner, the rear end of the elastic filter disc 43 has protrusions 44 in active abutment with the impact blocks 42, and the protrusions 44 and the impact blocks 42 are both circumferentially arranged and are three in number respectively.

[0046] The spring part of the initial elastic wedge column 45 is in a stretched state. When the L-shaped wedge rod 5 rotates rapidly, the inclined surface of the elastic wedge column 45 is used to press the elastic wedge column 45 and drive the elastic filter disc 43 to deflect. When the bottom of the elastic wedge column 45 passes through the groove and the elastic wedge column 45 moves downward to reset, the rear end of the L-shaped wedge rod 5 automatically passes over the top end of the elastic wedge column 45. The elastic force of the elastic wedge column 45 is smaller than the elastic force of the elastic filter disc 43, so that the elastic filter disc 43 automatically drives the elastic wedge column 45 to move out of the groove and reset, and the elastic filter disc 43 drives the protrusion 44 to impact the impact block 42, so that the elastic filter disc 43 is forced to vibrate as a whole, thereby strengthening the cleaning effect of dust and avoiding the combination of dust and phosphine to form sticky particles to block the elastic filter disc 43 during subsequent fumigation;

[0047] When the control assembly drives the shaft tube disc 2 to make the tooth tube 13 drive the threaded clamping rod 52 to reset and reverse deflect, the L-shaped wedge rod 5 will not rotate in the reverse direction under the action of the ratchet wheel, so as to avoid pressing the elastic wedge column 45 to drive the elastic filter disc 43 to make the protrusion 44 and the impact block 42 press and conflict.

[0048] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grain surface air conditioning system with a closed door, comprising a cabinet (1) and two air inlets in the front wall of the cabinet (1), characterized in that, The shaft pipe disc (2) is rotationally connected in the front wall of the cabinet (1), the shaft pipe disc (2) is provided with a through groove one with a butt joint air port on the left and right sides, and is provided with a through groove two on the upper and lower sides, the through groove two is slidably connected with the abutting disc (22) on the front and rear sides, the opposite side edges of the abutting disc (22) are provided with sealing rings one (23), and the cabinet (1) is provided with a control assembly for step-by-step driving of the shaft pipe disc (2) and the abutting disc (22) in the middle part; The air pipe (4) is slidably inserted into the two air ports, the air pipe (4) is provided with sealing rings two (41) on the front and rear ends, the valve cover (48) is slidably inserted into the front end of the air pipe (4), the impact block (42) is fixedly connected to the inner wall of the left air pipe (4) and is rotationally connected with the elastic filter disc (43), the cleaning cover (51) is rotationally arranged on the front side of the elastic filter disc (43), the air pipe (4) is provided with an ash discharge port in the lower wall and is slidably inserted with the valve plate (46) fixedly connected with the valve cover (48), the collection cylinder (47) is threadedly connected to the bottom of the ash discharge port, and the air pipe (4) is provided with an adjusting assembly for closing the valve cover (48) and controlling the cleaning elastic filter disc (43); The air conditioner (11) is installed in the rear part of the inner cavity of the cabinet (1), and the air conditioner (11) is provided with a conduit (12) connected with the corresponding air port on the left and right ends; The control assembly comprises a shaft pipe wheel (3) rotationally connected in the middle part of the shaft pipe disc (2), the rear end inner wall of the shaft pipe wheel (3) is provided with a spiral groove (33), the front end upper and lower sides of the shaft pipe wheel (3) are provided with arc grooves (31), the inner wall of the shaft pipe disc (2) is slidably inserted with pin columns (32) movably clamped with the arc grooves (31) on the upper and lower sides, the inner wall of the abutting disc (22) is fixedly connected with symmetrical guide plates (24), the guide plates (24) are provided with inclined grooves (25), the pin columns (32) are movably clamped with the inclined grooves (25), the upper and lower ends of the pin columns (32) are T-shaped, the radius of the sealing rings one (23) is greater than the radius of the air port, the rear end inner wall of the shaft pipe disc (2) is provided with a guide groove (21), the front end of the air conditioner (11) is fixedly connected with a telescopic cylinder (34) movably inserted into the rear end of the shaft pipe wheel (3), and the rear wall of the output end of the telescopic cylinder (34) is provided with a convex column (35) movably clamped with the guide groove (21) and the spiral groove (33).

2. The grain surface air conditioning system having a closed door according to claim 1, wherein The guide groove (21) is composed of a straight groove on the front side and a curved groove on the rear side, and the spiral direction and pitch of the spiral groove (33) are the same as those of the curved groove.

3. The grain surface air conditioning system having a closed door according to claim 2, wherein The rear end of the air pipe (4) is provided with a flange sleeve slidably sleeved on the front end of the air port, and the fixed filter disc (6) is installed in the right air pipe (4).

4. The grain surface air conditioning system having a closed door according to claim 3, wherein The adjusting assembly comprises a threaded clamping rod (52) rotationally connected to the outer wall of the air pipe (4), the threaded clamping rod (52) is threadedly connected to the outer wall of the valve cover (48), the side walls of the two side air outlets are rotationally connected with tooth tubes (13), the outer wall of the shaft tube disc (2) is provided with two tooth grooves which are engagedly connected with the tooth tubes (13), the front ends of the two side air outlets are fixedly connected with sealing sleeves (14) which are rotationally connected with the tooth tubes (13), the threaded clamping rod (52) is slidingly clamped in the tooth tube (13), and the outer wall of the threaded clamping rod (52) and the inner wall of the tooth tube (13) are respectively provided with matching key grooves and key protrusions.

5. The grain surface air conditioning system having a closed door according to claim 4, wherein A connecting plate is mounted between the two valve covers (48), and the bottoms of the two valve covers (48) are provided with valve ports on the sides away from each other.

6. The grain surface air conditioning system having a closed door according to claim 5, wherein The adjusting assembly further comprises an L-shaped wedge rod (5) rotationally connected to the middle part of the elastic filter disc (43), the cleaning cover (51) is fixedly sleeved on the L-shaped wedge rod (5), the inner wall of the cleaning cover (51) is provided with brush hairs which are in movable abutment with the elastic filter disc (43), the L-shaped wedge rod (5) is slidingly and sealingly connected with the center of the valve cover (48), the front end of the L-shaped wedge rod (5) is provided with a ratchet belt wheel, the ratchet belt wheel comprises a ratchet wheel fixedly sleeved on the front end of the L-shaped wedge rod (5) and a belt wheel one rotationally sleeved on the periphery of the ratchet wheel, the inner wall of the belt wheel one is provided with elastic pawls which are in movable clamping connection with the ratchet wheel, the front end of the left threaded clamping rod (52) is provided with a belt wheel two, the radius of the belt wheel two is greater than that of the belt wheel one, and a transmission belt is movably sleeved between the belt wheel two and the belt wheel one.

7. The grain surface air conditioning system having a closed door according to claim 6, wherein The elastic wedge column (45) is slidingly clamped on the lower side of the rear end of the elastic filter disc (43), the elastic force of the elastic wedge column (45) is smaller than that of the elastic filter disc (43), the elastic wedge column (45) and the L-shaped wedge rod (5) have inclined surfaces which are in abutment with each other, the lower wall of the left air pipe (4) has a groove corresponding to the elastic wedge column (45), the right wall of the groove is designed in a slope shape, the bottom end of the elastic wedge column (45) is designed in a round corner, the rear end of the elastic filter disc (43) has a protrusion (44) which is in movable abutment with the impact block (42), and the protrusion (44) and the impact block (42) are circumferentially arranged and respectively have three.

8. The grain surface air conditioning system having a closed door according to claim 7, wherein The valve plate (46) is provided with a valve port which is offset from the ash discharge port, and the ash discharge port is conical and located at the front lower side of the elastic filter disc (43).

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