Grain surface air conditioning system with air-tight door

Abstract

The invention relates to the technical field of grain surface air conditioners, and discloses a grain surface air conditioning system with an air-tight door, which comprises a case and two air ports in the front wall of the case, a shaft tube disc is rotatably connected in the front wall of the case, the left and right sides of the shaft tube disc are respectively provided with a through groove I butted with the air ports, and the upper and lower sides of the shaft tube disc are respectively provided with a through groove II; the front side and the rear side of the second through groove are slidably connected with abutting connection discs, and first sealing rings are arranged on the edges of the opposite sides of the abutting connection discs. The shaft pipe disc and the abutting disc are controlled to act step by step before and after granary fumigation, the first sealing ring is driven to vertically extrude and seal the air opening or vertically reset, the valve cover is matched to extrude the second sealing ring and contract into the two air pipes, and therefore the situation that a sealing piece is abraded and fails is avoided, and the double-air-tight-door function is provided; in addition, dust on the surface of the elastic filter disc can be fully cleaned and collected, the situation that the dust and hydrogen phosphide are combined to form viscous particles to block the elastic filter disc is avoided, and follow-up stable use of the elastic filter disc is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of grain and flour air conditioning, and in particular to a grain and flour air conditioning system with a sealed door. Background Art

[0002] When storing grain in modern granaries, in order to maintain the storage state of the grain, it is usually necessary to install special air conditioners for granaries to regulate the temperature and humidity inside the granaries. In addition, during the grain storage process, grain fumigation is an important pest control operation in grain storage. That is, when the pest infection of grain (including finished grain, raw grain, oilseeds, dried potatoes, seed grain, etc.) reaches a certain level, under sealed conditions, a certain amount of aluminum phosphide, calcium phosphide, zinc phosphide and other drugs are buried in the grain pile, so that the above-mentioned phosphides absorb moisture in the gaps in the grain pile and the grain, produce a chemical reaction, and release highly toxic phosphine gas, so as to kill various pests and insect eggs in the grain pile.

[0003] The invention patent with publication number CN119934607A discloses a dynamic anti-fumigation corrosion airtight granary air conditioner, including an air conditioner main body, a sealing structure is provided on the side of the air conditioner main body, an 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 provided on the bottom side of the air supply structure, and a release structure is connected between the water collecting structure and the sealing structure; the sealing structure can prevent corrosive gas from entering the interior of the air conditioner, the air supply structure can ensure smooth flow of air, the connecting structure can facilitate the connection of pipelines to ensure a 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 in a closed manner to prevent the condensed water from re-evaporating.

[0004] The airtight granary air conditioner in the above patent can control the linear movement of the sealing plate to seal the air outlet before the granary is fumigated, and on the inner side of the sealing plate, i.e., the side close to the interior of the air conditioner, the sealing plate is rigidly squeezed and sealed by a connecting pipe, while on the outer side of the sealing plate, i.e., the side close to the air duct, the sealing pipe drives the gasket to squeeze and seal the sealing plate. The sealing mechanisms on both sides are actuated by springs. Although the sealing mechanisms on both sides are respectively provided with inclined surfaces and protrusions for being squeezed and separated by the sealing plates, the sealing plates will slide and rub against the end faces of the sealing mechanisms on both sides when entering and exiting. Moreover, although the stronger the spring force, the stronger the sealing performance, the corresponding wear of the sealing mechanism will be more serious, and the seal will easily fail. Moreover, since only one layer of sealing door function is provided for the sealing plate, the overall sealing performance is poor. The air duct lacks the necessary filter, and the dust-proof effect of the fan is not good. After the filter is installed in the air duct, due to the lack of a sealing mechanism at the outer end of the air duct and the dust on the surface of the filter after long-term use, when phosphine combines with dust in a humid environment, it is easy to form a sticky substance, which leads to clogging of the pores of the filter and increased wind resistance. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems of severe seal wear, poor sealing performance, and fumigation easily leading to filter clogging and increased wind resistance in the use of general granary air conditioners. The present invention provides a grain surface air conditioning system with a closed door.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A grain and flour air conditioning system with a sealed door comprises a chassis and two air ports on the front wall of the chassis, a shaft tube disc being rotatably connected to the front wall of the chassis, a through slot for docking with the air port being provided on the left and right sides of the shaft tube disc, and a through slot being provided on the upper and lower sides, abutment discs being slidably connected to the front and rear sides of the through slots, a sealing ring being provided on the opposite side edges of the abutment discs, and a control assembly for adjusting the step-by-step actuation of the shaft tube disc and the abutment disc being provided in the middle of the chassis; The front ends of the two air ports are slidably connected with air ducts, and two sealing rings are provided at the front and rear ends of the air ducts. The front end of the air duct is slidably connected with a valve cover, and the inner wall of the air duct on the left is fixedly connected with an impact block and rotatably connected with an elastic filter disc, and a cleaning cover is rotatably provided on the front side of the elastic filter disc. The lower wall of the air duct on the left is provided with an ash discharge port and a valve plate fixedly connected to the valve cover is slidably connected, and the bottom of the ash discharge port is threadedly connected to a collecting cylinder, and the air duct is provided with an adjustment component for closing the valve cover and controlling the cleaning of the elastic filter disc.

[0007] Furthermore, an air conditioner is installed at the rear of the inner cavity of the chassis, and both left and right ends of the air conditioner have conduits connected to corresponding air ports.

[0008] Furthermore, the control component includes a shaft tube wheel rotatably connected to the middle part of the shaft tube disk, a spiral groove is provided on the inner wall at the rear end of the shaft tube wheel, arc grooves are provided on the upper and lower sides of the front end of the shaft tube wheel, and pins are slidably inserted on the upper and lower sides of the inner wall of the shaft tube disk and movably engaged with the arc grooves, a symmetrical guide plate is fixedly connected to the inner wall of the abutment disk, an oblique groove is provided on the guide plate, the pin is movably engaged with the oblique groove, the upper and lower ends of the pin are T-shaped, the radius of the sealing ring is larger than the radius of the air port, a guide groove is provided on the inner wall at the rear end of the shaft tube disk, and the front end of the air conditioner is fixedly connected to a telescopic cylinder movably inserted into the rear end of the shaft tube wheel, and the lower wall of the output end of the telescopic cylinder is provided with a convex column movably engaged with the guide groove and the spiral groove.

[0009] Furthermore, the guide groove 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 and the curved groove are the same.

[0010] Furthermore, a flange sleeve is provided on the periphery of the rear end of the air duct, and the flange sleeve is slidably sleeved on the front end of the air port, and a fixed filter plate is installed in the air duct on the right side.

[0011] Furthermore, the adjustment assembly includes a threaded clamping rod rotatably connected to the outer wall of the air duct, the threaded clamping rod is threadedly connected to the outer wall of the valve cover, the side walls of the air ports on both sides are rotatably connected to the tooth tubes, the outer wall of the shaft tube disk is provided with two tooth grooves engaged with the tooth tubes, the front ends of the air ports on both sides are fixedly connected with sealing sleeves rotatably connected to the tooth tubes, the threaded clamping rod is slidably clamped in the tooth tube, and the outer wall of the threaded clamping rod and the inner wall of the tooth tube respectively have corresponding key grooves and key protrusions.

[0012] Furthermore, a connecting plate is installed between the valve covers on both sides, and air outlets are provided on the sides of the bottoms of the valve covers on both sides that are away from each other.

[0013] Furthermore, the adjustment assembly also includes an L-shaped wedge rod rotatably connected to the middle of the elastic filter disc, the cleaning cover is fixedly sleeved on the L-shaped wedge rod, the inner wall of the cleaning cover is provided with bristles that movably abut against the elastic filter disc, the L-shaped wedge rod is slidingly and sealingly connected to the center of the valve cover, and a ratchet wheel is provided at the front end of the L-shaped wedge rod, the ratchet wheel includes a ratchet fixedly sleeved on the front end of the L-shaped wedge rod and a pulley 1 rotatably sleeved on the periphery of the ratchet wheel, the inner wall of the pulley 1 has an elastic pawl movably engaged with the ratchet wheel, and the front end of the threaded clamping rod on the left side is provided with a pulley 2, the radius of the pulley 2 is larger than the radius of the pulley 1, and a transmission belt is movably sleeved between the two.

[0014] Furthermore, an elastic wedge column is slidably engaged with the lower side of the rear end of the elastic filter disc, the elastic force of the elastic wedge column is smaller than the elastic force of the elastic filter disc, and there are inclined surfaces abutting each other between the elastic wedge column and the L-shaped wedge rod, and the lower wall of the air duct on the left side has a groove corresponding to the elastic wedge column, and the right wall of the groove is designed to be sloped, and the bottom end of the elastic wedge column is rounded, and the rear end of the elastic filter disc has a protrusion that movably abuts against the impact block, and the protrusion and the impact block are both arranged in a circular array and there are three of them respectively.

[0015] Furthermore, a valve port offset from the ash discharge port is provided on the front side of the valve plate. The ash discharge port is conical and located at the lower side of the front end of the elastic filter disc.

[0016] The beneficial effects of the present invention are as follows: 1. Before fumigating the granary, the present invention uses a control component to first drive the shaft tube disc to deflect so that the through groove 2 is docked with the air port, and then drives the two abutment discs in the through groove 2 to move backwards, so that the sealing rings on the front and rear sides vertically squeeze the inner wall of the air port. The sealing rings are deformed under pressure and automatically seal the gap between the abutment disc and the inner wall of the air port. When the corresponding control component is reset, the abutment disc and the shaft tube disc are also actuated in steps, thereby avoiding failure caused by wear of the seals. The synchronously coordinated adjustment component drives the valve cover to extrude the sealing ring 2 and shrink it into the two air ducts, sealing the front end of the air ducts, thereby providing a double-sealed door function during fumigation, ensuring a sufficient sealing effect on the interior of the air conditioner.

[0017] 2. The present invention drives the cleaning cover to rotate continuously to clean the surface of the elastic filter disc through the pre-fumigation adjustment component. At the same time, the elastic filter disc is driven to intermittently deflect and collide with the impact block to vibrate, thereby fully cleaning the dust and preventing the dust from combining with phosphine to form sticky particles to block the elastic filter disc, thereby ensuring the subsequent stable use of the elastic filter disc. The synchronous valve cover shrinks and moves so that the valve plate opens the ash discharge port, which is convenient for collection using the collection cylinder. When the air conditioner is working subsequently, the valve plate is reset along with the adjustment component, thereby automatically closing the ash discharge port to prevent the airflow from driving dust to fly to the surface of the elastic filter disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural diagram of the air-conditioning system of the present invention; Figure 2 This is a three-dimensional structural diagram of the air conditioning system chassis and air duct portion of the present invention; Figure 3 is a partial three-dimensional cutaway view of the chassis of the air-conditioning system of the present invention; Figure 4 It is a partial three-dimensional cutaway view of the axial tube disc and the abutment disc of the air-conditioning system of the present invention; Figure 5 It is a partial three-dimensional cutaway exploded view of the axial tube disc and the abutment disc of the air-conditioning system of the present invention; Figure 6 This is a three-dimensional cutaway view of the chassis and air duct portion of the air conditioning system of the present invention; Figure 7 This is a partial three-dimensional cutaway view of the air duct and collecting tube of the air conditioning system of the present invention; Figure 8 It is a three-dimensional cutaway view of the air duct portion of the air conditioning system of the present invention.

[0019] Figure numerals: 1. Chassis; 11. Air conditioner; 12. Conduit; 13. Toothed tube; 14. Sealing sleeve; 2. Shaft tube disc; 21. Guide groove; 22. Abutment disc; 23. Sealing ring 1; 24. Guide plate; 25. Inclined groove; 3. Shaft tube wheel; 31. Arc groove; 32. Pin; 33. Spiral groove; 34. Telescopic cylinder; 35. Boss; 4. Air duct; 41. Sealing ring 2; 42. Impact block; 43. Elastic filter disc; 44. Boss; 45. Elastic wedge column; 46. Valve plate; 47. Collecting tube; 48. Valve cover; 5. L-shaped wedge rod; 51. Cleaning cover; 52. Threaded clamping rod; 6. Fixed filter disc. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Example 1, as Figures 1-8 As shown, a grain and flour air conditioning system with a sealed door includes a chassis 1 and two air ports on the front wall of the chassis 1. A shaft tube disc 2 is rotatably connected to the front wall of the chassis 1. The shaft tube disc 2 has a through slot 1 on the left and right sides for docking with the air port, and a through slot 2 on the upper and lower sides. Abutment discs 22 are slidably connected to the front and rear sides of the through slot 2. Sealing rings 23 are provided on the opposite edges of the abutment disc 22. The radius of the sealing ring 23 is larger than the radius of the air port. A control component for adjusting the step-by-step actuation of the shaft tube disc 2 and the abutment disc 22 is provided in the middle of the chassis 1. The front ends of the two air ports are slidably connected with air ducts 4, and sealing rings 41 are provided at the front and rear ends of the air duct 4. A valve cover 48 is slidably connected with the front end of the air duct 4. The inner wall of the left air duct 4 is fixedly connected with an impact block 42 and is rotatably connected with an elastic filter disc 43. A cleaning cover 51 is rotatably provided on the front side of the elastic filter disc 43. An ash discharge port is provided on the lower wall of the left air duct 4 and a valve plate 46 fixedly connected to the valve cover 48 is slidably connected. A valve port that is misaligned with the ash discharge port is provided on the front side of the valve plate 46. The ash discharge port is conical and is located at the lower side of the front end of the elastic filter disc 43. A collecting cylinder 47 is threadedly connected to the bottom of the ash discharge port. The air duct 4 is provided with a closing valve cover 48 and an adjustment component for controlling the cleaning of the elastic filter disc 43.

[0022] A flange sleeve is provided on the periphery of the rear end of the air duct 4 , and the flange sleeve is slidably sleeved on the front end of the air port. A fixed filter disc 6 is installed in the right air duct 4 .

[0023] 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.

[0024] 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.

[0025] Embodiment 2, on the basis of the above embodiment, the control component includes a shaft tube wheel 3 rotatably connected to the middle part of the shaft tube disk 2, a spiral groove 33 is provided on the inner wall of the rear end of the shaft tube wheel 3, arc grooves 31 are provided on the upper and lower sides of the front end of the shaft tube wheel 3, and pins 32 are slidably inserted on the upper and lower sides of the inner wall of the shaft tube disk 2 and movably engaged with the arc groove 31, a symmetrical guide plate 24 is fixedly connected to the inner wall of the abutment disk 22, an inclined groove 25 is provided on the guide plate 24, and the pin 32 is movably engaged with the inclined groove 25, and the upper and lower ends of the pin 32 are T-shaped, a guide groove 21 is provided on the inner wall of the rear end of the shaft tube disk 2, and the front end of the air conditioner 11 is fixedly connected to 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 protrusion 35 movably engaged with the guide groove 21 and the spiral groove 33.

[0026] The guide groove 21 is composed of a straight groove on the front side and a curved groove on the rear side. The spiral groove 33 has the same thread direction and pitch as the curved groove.

[0027] When it is necessary to seal the two air ports, the output end of the telescopic cylinder 34 is controlled to extend to drive the boss 35 to move forward. The boss 35 squeezes the curved groove, thereby driving the shaft tube disc 2 to deflect ninety degrees, so that the abutment disc 22 rotates into the air port. Synchronously, the boss 35 squeezes the rear part of the spiral groove 33 to drive the shaft tube wheel 3 to deflect. Since the spiral groove 33 and the curved groove have the same spiral direction and pitch, the shaft tube wheel 3 deflects ninety degrees at the same time, thereby ensuring that before the shaft tube disc 2 deflects ninety degrees, the shaft tube wheel 3 does not rotate relative to the shaft tube disc 2, and the abutment disc 22 does not drive the sealing ring 1 23 to move outward from the through groove 2, thereby avoiding friction damage. Subsequently, as the output end of the telescopic cylinder 34 drives the boss 35 to continue to move forward, the boss 35 limits the straight groove, thereby limiting the subsequent deflection of the shaft tube disk 2, and the boss 35 continues to move forward to squeeze the front of the spiral groove 33, thereby driving the shaft tube wheel 3 to deflect, so that the arc groove 31 squeezes the pins 32 on both sides to move backward, and the pins 32 then squeeze the inclined grooves 25 on both sides, and the guide plate 24 drives the two abutment plates 22 in the through groove 2 to move the sealing ring 1 23 backward, thereby achieving complete sealing of the air port. By actively controlling the vertical extrusion of the sealing ring 1 23, the wear and failure of the sealing ring 1 23 is avoided. Compared with the spring extrusion seal, the rigid transmission of the control component is utilized, and the sealing control is safe, reliable and stable.

[0028] Embodiment three, on the basis of the above embodiment, the adjustment component includes a threaded clamping rod 52 rotatably connected to the outer wall of the air duct 4, the threaded clamping rod 52 is threadedly connected to the outer wall of the valve cover 48, the side walls of the air ports on both sides are rotatably connected to the tooth tube 13, the outer wall circumference of the shaft tube disk 2 is provided with two tooth grooves engaged with the tooth tube 13, the front ends of the air ports on both sides are fixedly connected with sealing sleeves 14 rotatably connected to the tooth tube 13, the threaded clamping rod 52 is slidably 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 respectively have corresponding key grooves and key protrusions.

[0029] 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.

[0030] 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.

[0031] In the fourth embodiment, the adjusting assembly further includes an L-shaped wedge rod 5 rotatably connected to 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 includes 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.

[0032] 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 rotates at a higher speed due to the larger radius of the belt wheel two, 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.

[0033] 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 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 protrusions 44 in active abutment with the impact blocks 42, and the protrusions 44 and the impact blocks 42 are both circumferentially arranged and respectively have three.

[0034] Initially, the spring portion of the elastic wedge column 45 is in a stretched state. When the L-shaped wedge rod 5 rotates rapidly, the inclined surface abutting against the elastic wedge column 45 is used to squeeze 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 of the elastic wedge column 45. Due to the design that the elastic force of the elastic wedge column 45 is smaller than the elastic force of the elastic filter disc 43, the elastic filter disc 43 automatically drives the elastic wedge column 45 to move out of the groove and deflect and reset, and the elastic filter disc 43 drives the protrusion 44 to impact the impact block 42, thereby forcing the elastic filter disc 43 to vibrate as a whole, thereby enhancing the dust cleaning effect and preventing the dust from combining with phosphine to form sticky particles that clog the elastic filter disc 43 during subsequent fumigation. Subsequently, when the control component drives the shaft tube disc 2 so that the toothed tube 13 drives the threaded clamping rod 52 to reset and deflect in the opposite direction, under the action of the ratchet wheel, the L-shaped wedge rod 5 will not rotate in the opposite direction, thereby avoiding squeezing the elastic wedge column 45 to drive the elastic filter disc 43 so that the protrusion 44 and the impact block 42 are squeezed and collided.

[0035] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grain surface air conditioning system with a sealed door, comprising a chassis (1) and two air ports on the front wall of the chassis (1), characterized in that: The front wall of the chassis (1) is rotatably connected to a shaft tube disc (2), the left and right sides of the shaft tube disc (2) are respectively provided with a through slot 1 for connecting the air port, and the upper and lower sides are respectively provided with a through slot 2, the front and rear sides of the through slot 2 are both slidably connected to abutment discs (22), the edges of the opposite sides of the abutment disc (22) are both provided with a sealing ring 1 (23), and the middle part of the chassis (1) is provided with a control component for adjusting the step-by-step actuation of the shaft tube disc (2) and the abutment disc (22); The front ends of the two air ports are slidably connected with air ducts (4), and the front and rear ends of the air ducts (4) are both provided with sealing rings (41). The front end of the air duct (4) is slidably connected with a valve cover (48). The inner wall of the air duct (4) on the left side is fixedly connected with an impact block (42) and rotatably connected with an elastic filter disc (43). The front side of the elastic filter disc (43) is rotatably provided with a cleaning cover (51). The lower wall of the air duct (4) on the left side is provided with an ash discharge port and is slidably connected with a valve plate (46) fixedly connected to the valve cover (48). The bottom of the ash discharge port is threadedly connected with a collecting cylinder (47). The air duct (4) is provided with an adjustment component for closing the valve cover (48) and controlling the cleaning of the elastic filter disc (43).

2. A grain and flour air conditioning system with a closed door according to claim 1, characterized in that: An air conditioner (11) is installed at the rear of the inner cavity of the chassis (1), and both left and right ends of the air conditioner (11) have conduits (12) connected to corresponding air ports.

3. A grain and flour air conditioning system with a sealed door according to claim 2, characterized in that: The control assembly includes a shaft tube wheel (3) rotatably connected to the middle of the shaft tube disc (2), a spiral groove (33) is provided on the inner wall of the rear end of the shaft tube wheel (3), arc grooves (31) are provided on the upper and lower sides of the front end of the shaft tube wheel (3), pins (32) are slidably connected to the upper and lower sides of the inner wall of the shaft tube disc (2) and are movably connected to the arc grooves (31), a symmetrical guide plate (24) is fixedly connected to the inner wall of the abutment disc (22), and an inclined groove (25) is provided on the guide plate (24). The pin (32) is movably engaged with the inclined groove (25), and the upper and lower ends of the pin (32) are both T-shaped. The radius of the sealing ring (23) is larger than the radius of the air port. A guide groove (21) is provided on the inner wall of the rear end of the shaft tube disc (2). The front end of the air conditioner (11) is fixedly connected to a telescopic cylinder (34) that is movably plugged into the rear end of the shaft tube wheel (3). The lower wall of the output end of the telescopic cylinder (34) is provided with a protrusion (35) that is movably engaged with the guide groove (21) and the spiral groove (33).

4. The grain and flour air conditioning system with a closed door according to claim 3, characterized in that: The guide groove (21) is composed of a straight groove on the front side and a curved groove on the rear side connected in combination, and the spiral groove (33) has the same spiral direction and pitch as the curved groove.

5. The grain and flour air conditioning system with a closed door according to claim 4, characterized in that: The rear end of the air duct (4) is provided with a flange sleeve, which is slidably sleeved on the front end of the air port. A fixed filter disc (6) is installed in the right side of the air duct (4).

6. The grain and flour air conditioning system with a closed door according to claim 5, characterized in that: The regulating assembly includes a threaded clamping rod (52) rotatably connected to the outer wall of the air duct (4), the threaded clamping rod (52) is threadedly connected to the outer wall of the valve cover (48), and the side walls of the air ports on both sides are rotatably connected to the tooth tube (13), the outer wall of the shaft tube disk (2) is provided with two tooth grooves meshing with the tooth tube (13), and the front ends of the air ports on both sides are fixedly connected to the sealing sleeves (14) rotatably connected to the tooth tube (13), the threaded clamping rod (52) is slidably 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) respectively have corresponding key grooves and key protrusions.

7. The grain and flour air conditioning system with a sealed door according to claim 6, characterized in that: A connecting plate is installed between the valve covers (48) on both sides, and air outlets are provided on the sides of the bottoms of the valve covers (48) on both sides that are away from each other.

8. The grain and flour air conditioning system with a closed door according to claim 7, characterized in that: The adjustment assembly also includes an L-shaped wedge rod (5) rotatably connected to the middle of the elastic filter disc (43), the cleaning cover (51) is fixedly sleeved on the L-shaped wedge rod (5), and the inner wall of the cleaning cover (51) is provided with bristles that are movably in contact with the elastic filter disc (43). The L-shaped wedge rod (5) is slidably sealed with the center of the valve cover (48), and a ratchet wheel is provided at the front end of the L-shaped wedge rod (5), and the ratchet wheel includes a ratchet wheel fixedly sleeved on the front end of the L-shaped wedge rod (5) and a pulley 1 rotatably sleeved on the outer periphery of the ratchet wheel, and the inner wall of the pulley 1 has an elastic pawl movably engaged with the ratchet wheel, and the front end of the threaded clamping rod (52) on the left side is provided with a pulley 2, the radius of the pulley 2 is greater than the radius of the pulley 1, and a transmission belt is movably sleeved between the two.

9. The grain and flour air conditioning system with a closed door according to claim 8, characterized in that: The lower side of the rear end of the elastic filter disc (43) is slidably connected to an 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), and there are mutually abutting inclined surfaces between the elastic wedge column (45) and the L-shaped wedge rod (5). The lower wall of the air duct (4) on the left side has a groove corresponding to the elastic wedge column (45), and the right wall of the groove is designed to be sloped. The bottom end of the elastic wedge column (45) is rounded, and the rear end of the elastic filter disc (43) has a protrusion (44) that is movably abutted against the impact block (42). The protrusion (44) and the impact block (42) are both arranged in a circular array and are three in number.

10. The grain and flour air conditioning system with a sealed door according to claim 9, characterized in that: The front side of the valve plate (46) is provided with a valve port that is offset from the ash discharge port. The ash discharge port is conical and located at the lower side of the front end of the elastic filter disc (43).

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