Controlled atmosphere fresh-keeping storehouse for fruit fresh-keeping

Abstract

The controlled atmosphere fresh-keeping storehouse comprises a storage chamber, a fixed placing frame and a movable placing frame, a mounting plate is fixedly connected to the top of the inner wall of the storage chamber, a driving motor is fixedly connected to one side of the mounting plate, and a lead screw is fixedly connected to the output end of the driving motor. Belongs to the technical field of controlled atmosphere fresh-keeping warehouses. According to the controlled atmosphere fresh-keeping storehouse for fruit fresh keeping, a driving motor is started to drive a lead screw to rotate forwards, the lead screw drives a moving plate to move and get close to a moving placement frame, a rotating shaft drives a baffle to rotate to a horizontal state, and in the process that a roller enters a first transverse groove through an inclined groove, the roller is extruded to drive a first rack to move upwards; the first rack drives the rotating plate to rotate downwards through the first gear until the rotating plate reaches the position of the vertical state, at the moment, the U-shaped plate is combined with the connecting rod on the movable placing frame, on the other hand, the movable placing frame can be pulled into the storage chamber through cooperation of the U-shaped plate and the stop lever, and workers do not need to manually hook the hook.

Description

Technical Field

[0001] The invention relates to the technical field of controlled atmosphere fresh-keeping warehouses, and more specifically to a controlled atmosphere fresh-keeping warehouse for preserving fruits. Background Art

[0002] Compared with the transmission refrigerated fresh-keeping warehouse, the atmosphere-controlled fresh-keeping warehouse can adjust the proportion of nitrogen, oxygen, carbon dioxide, ethylene and other components in the air of the fresh-keeping warehouse, which can keep the fruit fresh for a longer time and ensure the texture, color, taste and nutrition of the fruit for a longer time. The atmosphere-controlled fresh-keeping warehouse generally includes a storage room, an equipment placement room and a control room. The equipment placement room is equipped with nitrogen generators, carbon dioxide removers, refrigerators, ethylene removers and other equipment to adjust the composition, temperature and humidity of the air in the storage room. The control room is equipped with a control terminal to control various equipment.

[0003] A Chinese patent discloses a controlled atmosphere fresh-keeping warehouse for fruit preservation with patent number CN202121797476.4. When the utility model is used to preserve fruits, it is very convenient to put fruits in and out of the warehouse, and the labor intensity of workers is greatly reduced. However, there are still certain problems. When the controlled atmosphere fresh-keeping warehouse is in use, the staff needs to manually connect the hook and the connecting hole on the connecting plate, which is inconvenient to operate, and the hook is always in a suspended state and cannot be automatically retracted. When the staff operates in the controlled atmosphere fresh-keeping warehouse, it is easy to get hooked, which poses certain hidden dangers. Summary of the invention

[0004] The object of the present invention is to provide a controlled atmosphere fresh-keeping warehouse for fruit preservation to solve the problems raised in the above background technology:

[0005] When some existing controlled atmosphere fresh-keeping warehouses are in use, workers are required to manually connect the hooks and the connecting holes on the connecting plate, which is inconvenient to operate, and the hooks are always in a suspended state and cannot be automatically retracted. When workers operate in the controlled atmosphere fresh-keeping warehouse, they are prone to getting hung, which poses certain hidden dangers.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A kind of atmosphere-controlled fresh-keeping warehouse for fruit preservation comprises a storage room, a fixed placement rack and a movable placement rack. The top of the inner wall of the storage room is fixedly connected with a mounting plate. The fan and other equipment in the storage room can be controlled by a remote control system, so the staff can also remotely control the drive motor to control its start and stop and forward and reverse rotation. This is the prior art and will not be described in detail. One side of the mounting plate is fixedly connected with a drive motor, and the output end of the drive motor is fixedly connected with a screw rod, which is rotatably connected to the mounting plate, and the outer sleeve of the screw rod is provided with a movable plate, and the movable plate is connected to the screw rod. Threaded connection, a connecting mechanism is provided inside the movable plate, and the movable plate can drive the movable placement rack to move through the connecting mechanism, so as to facilitate warehousing and unloading. A first transverse groove is provided inside the mounting plate on one side close to the movable plate, and a second transverse groove is provided inside the mounting plate and below the first transverse groove. An oblique groove is provided between the first transverse groove and the second transverse groove, and both the first transverse groove and the second transverse groove are connected to the oblique groove. A blocking mechanism is provided inside the oblique groove, and the blocking mechanism is mainly used to cooperate with the first transverse groove, the second transverse groove and the oblique groove to control the state of the rotating plate and the U-shaped plate.

[0008] Preferably, the connecting mechanism includes a first gear, which is rotatably connected to the movable plate, the outside of the first gear is fixedly connected to the rotating plate, the outside of the rotating plate is fixedly connected to a U-shaped plate at one end away from the first gear, the inside of the rotating plate is slidably connected to the movable plate, the outside of the movable plate is fixedly connected to a blocking rod, the blocking rod vertically penetrates the U-shaped plate and extends to the inner side of the U-shaped plate, the blocking rod is slidably connected to the U-shaped plate, and the corresponding two side edges of the movable plate are provided with first sliding grooves, the first sliding grooves are composed of two parts, one part is an arc-shaped groove located at the top, and the other part is an inclined groove located at the bottom, and the first sliding rod enters the inclined groove from the arc-shaped groove When the U-shaped plate is in the movable groove, the first sliding bar will be squeezed, thereby starting to drive the blocking bar to close through the movable plate. The time difference provided by the arc-shaped groove can ensure that the blocking bar will be closed only after the connecting rod enters the U-shaped plate. The first sliding bar is slidingly connected to the inside of the first sliding groove, and the first sliding bar is fixedly connected to the movable plate. The inner side of the movable placement rack is fixedly connected with a connecting rod, and the connecting rod is used in conjunction with the U-shaped plate. The U-shaped plate mainly plays the role of a hook. When the U-shaped plate is combined with the connecting rod, the U-shaped plate can cooperate with the connecting rod to drive the movable placement rack to move as a whole, and under the action of the blocking rod, the movable placement rack can also be directly pulled to move as a whole under the action of the blocking rod. The blocking rod can also prevent the mobile placement rack from being unhooked.

[0009] Preferably, the movable plate is an L-shaped structure, and the movable plate with the L-shaped structure is more conducive to connecting the blocking rod and the first sliding rod.

[0010] Preferably, the movable plate is slidably connected to the inside of the movable plate, the first rack is meshed with the first gear, and a second slide groove is opened on the inside of the movable plate near the mounting plate, the second slide groove is slidably connected to the inside of the second slide bar, the second slide bar is fixedly connected to the first rack, and the second transverse groove is slidably connected to the inside of the roller, and the roller is rotatably connected to the second slide bar. When the roller enters the inclined groove, the roller will be squeezed by the inner wall of the inclined groove, so that the roller drives the first rack to move through the second slide bar, and the first rack drives the rotating plate to rotate through the first gear, so that the rotating plate has two position states, horizontal and vertical, and the U-shaped plate in the horizontal state is not easy to get hooked.

[0011] Preferably, the blocking mechanism includes a rotating shaft, the rotating shaft is rotatably connected to the mounting plate, the outside of the rotating shaft is fixedly connected to a baffle, the baffle mainly controls whether the first transverse groove is connected to the oblique groove, when the two are connected, the roller can move between the first transverse groove, the second transverse groove and the oblique groove, when the two are not connected, the roller can only move in the first transverse groove, the outside of the rotating shaft One end away from the baffle is fixedly connected to a worm gear, one side of the mounting plate is rotatably connected to a worm, the worm is meshed with the worm gear, one end of the worm is fixedly connected to a first bevel gear, one side of the mounting plate is rotatably connected to a second bevel gear, the second bevel gear is meshed with the first bevel gear The gears are meshed and connected, and the outside of the second bevel gear is fixedly connected to a swing plate, and the outside of the mounting plate and one side of the swing plate is rotatably connected to a circular plate, and a third sliding groove is provided inside the swing plate, and a third sliding rod is slidably connected inside the third sliding groove, and the third sliding rod is fixedly connected to the circular plate. When the circular plate rotates, the circular plate will drive the third sliding rod to make a circular motion, and the third sliding rod will squeeze the inner wall of the third sliding groove, thereby driving the swing plate to swing, and when the swing plate swings, it will drive the second bevel gear to rotate, and cooperate with the first bevel gear to drive the worm to rotate, and finally the worm drives the baffle to rotate through the worm wheel and the rotating shaft, thereby automatically adjusting the position of the baffle.

[0012] Preferably, the outer part of the circular plate is sleeved with a second gear, the second gear is rotatably connected to the circular plate, the inner part of the circular plate is rotatably connected with a clamping block, a first spring is arranged between the clamping block and the circular plate, a clamping groove is opened on the inner side of the second gear, the clamping groove is used in conjunction with the clamping block, there are two groups of clamping blocks and the first spring in total, and they are point-symmetrically distributed about the center of the circular plate, and under the action of the elastic force of the first spring, the clamping block is always engaged with the clamping groove at the corresponding position, and the clamping block and the clamping groove here mainly cooperate with the second gear to drive the circular plate to make intermittent rotation.

[0013] Preferably, the mounting plate is internally slidably connected to a push block, the top of the push block is fixedly connected to a connecting plate, the outside of the connecting plate is fixedly connected to a second rack, the second rack is meshingly connected to the second gear, and when the roller moves in the first transverse groove, the push block can be pushed, and the push block drives the second rack to move through the connecting plate, so that the second rack can drive the second gear to rotate on the outside of the circular plate.

[0014] Preferably, the push block is slidably connected to a fixed rod inside, and the fixed rod is fixedly connected to the mounting plate. A second spring is sleeved on the outside of the fixed rod and located between the push block and the mounting plate. The fixed rod serves to limit the push block, so that the push block can move more smoothly, and the second spring is used to drive the push block to automatically return to its initial position.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The first gear drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate upwardly, and the movable plate drives the movable plate to rotate upwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate drives the movable plate to rotate downwardly, and the movable plate

[0017] 2) When the gas-controlled fresh-keeping cabinet for fruit preservation is in use, during the downward rotation of the rotating plate, under the action of the first slide groove and the first slide bar, the movable plate will drive the blocking rod on the U-shaped plate to close, which can prevent the hook from coming off.

[0018] 3) When the present fruit fresh-keeping controlled atmosphere fresh-keeping warehouse is in use, when the roller is away from the push block, the elastic force of the second spring will drive the connecting plate and the second rack to return to their positions. At this time, the second gear only idles on the outside of the circular plate and will not drive the circular plate to reverse. After the mobile placement rack is put into storage, the drive motor is started again to drive the screw rod to rotate forward, and the push block is pushed again to control the baffle to rotate upward. At this time, the first transverse groove, the second transverse groove and the inclined groove are all connected. When the roller enters the inclined groove again, the baffle will open, and then the rotating plate will rotate upward until it reaches a horizontal position. The mobile placement rack is pushed out and the rotating plate is also retracted without hooking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the mobile placement rack of the present invention;

[0021] Figure 3 It is a structural schematic diagram of the mounting plate of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the swing plate of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the first chute of the present invention;

[0024] Figure 6 is a schematic structural diagram of a first rack of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the rotating plate of the present invention;

[0026] Figure 8 It is a structural schematic diagram of a circular plate of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the card block of the present invention;

[0028] Fig.10 is a schematic structural diagram of the second gear of the present invention;

[0029] Fig.11 is a cross-sectional schematic diagram of the mounting plate of the present invention;

[0030] Fig.12 It is a schematic structural diagram of the second transverse groove of the present invention.

[0031] Explanation of the reference numerals in the figure: 1, storage room; 2, fixed placement rack; 3, mobile placement rack; 4, mounting plate; 5, driving motor; 6, lead screw; 7, mobile plate; 8, connecting mechanism; 801, first gear; 802, rotating plate; 803, U-shaped plate; 804, movable plate; 805, blocking rod; 806, first slide groove; 807, first slide rod; 808, connecting rod; 809, first rack; 810, second slide groove; 811, second slide rod; 812, roller; 9, first transverse groove; 10, second transverse groove; 11, inclined groove; 12. blocking mechanism; 1201. rotating shaft; 1202. baffle; 1203. worm gear; 1204. worm; 1205. first bevel gear; 1206. second bevel gear; 1207. swing plate; 1208. circular plate; 1209. third slide groove; 1210. third slide rod; 1211. second gear; 1212. block; 1213. first spring; 1214. slot; 1215. push block; 1216. connecting plate; 1217. second rack; 1218. fixing rod; 1219. second spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figures 1 to 12 A fruit fresh-keeping gas conditioning storage comprises a storage room 1, a fixed placement rack 2 and a movable placement rack 3. A mounting plate 4 is fixedly connected to the top of the inner wall of the storage room 1, a driving motor 5 is fixedly connected to one side of the mounting plate 4, a screw rod 6 is fixedly connected to the output end of the driving motor 5, the screw rod 6 is rotatably connected to the mounting plate 4, a movable plate 7 is sleeved on the outer side of the screw rod 6, the movable plate 7 is threadedly connected to the screw rod 6, a connecting mechanism 8 is arranged inside the movable plate 7, and the movable placement rack 3 can be driven to move by the connecting mechanism 8. , which is convenient for warehousing and unloading, a first transverse groove 9 is provided on the side of the mounting plate 4 close to the movable plate 7, a second transverse groove 10 is provided inside the mounting plate 4 and below the first transverse groove 9, an inclined groove 11 is provided between the first transverse groove 9 and the second transverse groove 10, the first transverse groove 9 and the second transverse groove 10 are both connected to the inclined groove 11, a blocking mechanism 12 is provided inside the inclined groove 11, and the blocking mechanism 12 is mainly used to cooperate with the first transverse groove 9, the second transverse groove 10 and the inclined groove 11 to control the state of the rotating plate 802 and the U-shaped plate 803.

[0034] Furthermore, the connecting mechanism 8 includes a first gear 801, which is rotatably connected to the movable plate 7, the outside of the first gear 801 is fixedly connected to a rotating plate 802, the outside of the rotating plate 802 is fixedly connected to an end of the first gear 801, and the inside of the rotating plate 802 is slidably connected to a movable plate 804, and the outside of the movable plate 804 is fixedly connected to a blocking rod 805, which vertically penetrates the U-shaped plate 803 and extends to the inner side of the U-shaped plate 803, and the blocking rod 805 is slidably connected to the U-shaped plate 803. The corresponding two sides of the movable plate 7 are provided with a first sliding groove 806, and the first sliding groove 806 is composed of two parts, one part is a circular arc groove located at the top, and the center of the circular arc groove is on the same axis as the center of the first gear 801, so that when the rotating plate 802 starts to rotate, the first sliding rod 807 will not be squeezed, and the blocking rod 805 will not be closed, forming a first sliding groove. The other part of the groove 806 is an inclined groove. When the first sliding rod 807 enters the inclined groove from the arc groove, the first sliding rod 807 will be squeezed, thereby starting to drive the blocking rod 805 to close through the movable plate 804. The time difference provided by the arc groove can ensure that the blocking rod 805 will not be closed until the connecting rod 808 enters the U-shaped plate 803. The first sliding rod 807 is slidably connected to the inside of the first sliding groove 806. The first sliding rod 807 is fixedly connected to the movable plate 804. The inner side of the movable placement rack 3 is fixedly connected to the connecting rod 808. The connecting rod 808 is used in conjunction with the U-shaped plate 803. The U-shaped plate 803 mainly plays the role of a hook. When the U-shaped plate 803 is combined with the connecting rod 808, the U-shaped plate 803 can cooperate with the connecting rod 808 to drive the movable placement rack 3 to move as a whole, and under the action of the blocking rod 805, the movable placement rack 3 can also be directly pulled to move as a whole. The blocking rod 805 can also avoid the situation of unhooking.

[0035] Furthermore, the movable plate 804 is an L-shaped structure, and the movable plate 804 with the L-shaped structure is more conducive to connecting the blocking rod 805 and the first sliding rod 807 .

[0036] Furthermore, a first rack 809 is slidably connected inside the movable plate 7, and the first rack 809 is meshed with the first gear 801. A second slide groove 810 is provided on one side of the movable plate 7 near the mounting plate 4. A second slide rod 811 is slidably connected inside the second slide groove 810, and the second slide rod 811 is fixedly connected to the first rack 809. A roller 812 is slidably connected inside the second transverse groove 10, and the roller 812 is rotatably connected to the second slide rod 811. When the roller 812 enters the inclined groove 11, the roller 812 is squeezed by the inner wall of the inclined groove 11, so that the roller 812 drives the first rack 809 to move through the second slide rod 811, and the first rack 809 drives the rotating plate 802 to rotate through the first gear 801, so that the U-shaped plate 803 on the rotating plate 802 changes from a horizontal state to a vertical state, or from a vertical state to a horizontal state. The U-shaped plate 803 in a horizontal state is not easy to be hooked, which is more conducive to the daily operation of the staff.

[0037] Furthermore, the blocking mechanism 12 includes a rotating shaft 1201, which is rotatably connected to the mounting plate 4. A baffle 1202 is fixedly connected to the outside of the rotating shaft 1201. The baffle 1202 mainly controls whether the first transverse groove 9 is connected to the inclined groove 11. When the two are connected, the roller 812 can move between the first transverse groove 9, the second transverse groove 10 and the inclined groove 11. When the two are not connected, the roller 812 can only move in the first transverse groove 9, and the outside of the rotating shaft 1201 is away from the baffle 1202. One end of the worm gear 1203 is fixedly connected, one side of the mounting plate 4 is rotatably connected to a worm 1204, the worm 1204 is meshingly connected to the worm gear 1203, one end of the worm 1204 is fixedly connected to a first bevel gear 1205, one side of the mounting plate 4 is rotatably connected to a second bevel gear 1206, the second bevel gear 1206 is meshingly connected to the first bevel gear 1205, the outside of the second bevel gear 1206 is fixedly connected to a swing plate 1207, the outside of the mounting plate 4 and located at the swing plate 12 A circular plate 1208 is rotatably connected to one side of the swing plate 1207, a third slide groove 1209 is provided inside the swing plate 1207, a third slide bar 1210 is slidably connected inside the third slide groove 1209, and the third slide bar 1210 is fixedly connected to the circular plate 1208. When the circular plate 1208 rotates, the circular plate 1208 drives the third slide bar 1210 to make a circular motion, and the third slide bar 1210 squeezes the inner wall of the third slide groove 1209, thereby driving the swing plate 1207 to swing. When 07 swings, it will drive the second bevel gear 1206 to rotate, and cooperate with the first bevel gear 1205 to drive the worm 1204 to rotate. Finally, the worm 1204 drives the baffle 1202 to rotate through the worm wheel 1203 and the rotating shaft 1201, so as to automatically adjust the position of the baffle 1202. The self-locking ability of the worm 1204 and the worm wheel 1203 can ensure the stability of the baffle 1202, so that the baffle 1202 will not loosen even if it is squeezed by the roller 812.

[0038] Furthermore, the outer part of the circular plate 1208 is provided with a second gear 1211, and the second gear 1211 is rotatably connected to the circular plate 1208. The inner part of the circular plate 1208 is rotatably connected with a clamping block 1212, and a first spring 1213 is arranged between the clamping block 1212 and the circular plate 1208. A clamping groove 1214 is provided on the inner side of the second gear 1211, and the clamping groove 1214 is used in conjunction with the clamping block 1212. There are two groups of clamping blocks 1212 and the first spring 1213 in total, and they are point-symmetrically distributed about the center of the circular plate 1208. Under the elastic force of the first spring 1213, the clamping block 1212 is always engaged with the clamping groove 1214 at the corresponding position. Here, the clamping block 1212 and the clamping groove 1214 mainly cooperate with the second gear 1211 to drive the circular plate 1208 to rotate intermittently, and their function is similar to that of a ratchet pawl.

[0039] Furthermore, the mounting plate 4 is internally slidably connected with a push block 1215, the top of the push block 1215 is fixedly connected with a connecting plate 1216, the outside of the connecting plate 1216 is fixedly connected with a second rack 1217, the second rack 1217 is meshingly connected with the second gear 1211, and when the roller 812 moves in the first transverse groove 9, it can push the push block 1215, and the push block 1215 drives the second rack 1217 to move through the connecting plate 1216. Since the second rack 1217 is meshed with the second gear 1211, when the second rack 1217 moves, the second rack 1217 will drive the second gear 1211 to rotate on the outside of the circular plate 1208.

[0040] Furthermore, the push block 1215 is internally slidably connected to a fixed rod 1218, which is fixedly connected to the mounting plate 4, and a second spring 1219 is sleeved on the outside of the fixed rod 1218 and located between the push block 1215 and the mounting plate 4. There are two fixed rods 1218 in total, which are distributed up and down, and serve to limit the push block 1215. When the push block 1215 moves, it can be more stable, and the second spring 1219 is used to drive the push block 1215 to automatically return to the initial position.

[0041] The steps of using the present invention are as follows: when the present gas-controlled fresh-keeping warehouse for fruit preservation is in use, initially, the rotating plate 802 is in a horizontal state. When the mobile placement rack 3 needs to be automatically put into the warehouse, the driving motor 5 is started to drive the screw rod 6 to rotate forward, and the screw rod 6 drives the moving plate 7 to move and approach the moving placement rack 3. At this time, the roller 812 is located in the second transverse groove 10, until the moving plate 7 moves to the roller 812, enters the inclined groove 11 and enters the first transverse groove 9, and the roller 812 starts to push the push block 1215. When the push block 1215 is pushed by the roller 812, the push block 1215 drives the second rack 1217 to move through the connecting plate 1216. At this time, under the action of the block 1212 and the slot 1214, the second rack 1217 is moved. The rack 1217 can cooperate with the second gear 1211 to drive the circular plate 1208 to rotate, so that the circular plate 1208 rotates 180 degrees. When the circular plate 1208 rotates, the third slide bar 1210 squeezes the inner wall of the third slide groove 1209, thereby driving the swing plate 1207 to swing downward, and then the swing plate 1207 drives the second bevel gear 1206 to rotate, and the second bevel gear 1206 drives the worm 1204 to rotate through the first bevel gear 1205, and the worm 1204 drives the rotating shaft 1201 to rotate through the worm gear 1203. Finally, the rotating shaft 1201 drives the baffle 1202 to rotate to a horizontal state. At this time, the first transverse groove 9 is not connected with the inclined groove 11, and the roller 812 enters the first transverse groove 9 through the inclined groove 11. During the process, the roller 812 is squeezed to drive the first rack 809 to move upward, and the first rack 809 drives the rotating plate 802 to rotate downward through the first gear 801 until it reaches the vertical position. At this time, the U-shaped plate 803 has been combined with the connecting rod 808 on the movable placement rack 3, and during the downward rotation of the rotating plate 802, under the action of the first slide groove 806 and the first slide rod 807, the movable plate 804 drives the blocking rod 805 on the U-shaped plate 803 to close, on the one hand, it can prevent unhooking, and on the other hand, the movable placement rack 3 can be pulled into the storage chamber 1 through the cooperation of the U-shaped plate 803 and the blocking rod 805. When the roller 812 is away from the push block 1215, the elastic force of the second spring 1219 is It will drive the connecting plate 1216 and the second rack 1217 back to their original positions. At this time, the second gear 1211 only idles on the outside of the circular plate 1208, and will not drive the circular plate 1208 to reverse. After the mobile placement rack 3 is put into storage, the drive motor 5 is started again to drive the screw rod 6 to rotate forward, and the push block 1215 is pushed again to control the baffle 1202 to rotate upward. At this time, the first transverse groove 9, the second transverse groove 10 and the inclined groove 11 are all connected. When the roller 812 enters the inclined groove 11 again, the baffle bar 805 will open, and then the rotating plate 802 will rotate upward until it reaches a horizontal position. The mobile placement rack 3 is pushed out, and the rotating plate 802 is also retracted. There will be no hooking, and the staff does not need to manually hook it.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A controlled atmosphere fresh-keeping warehouse for fruit preservation, comprising a storage room (1), a fixed placement rack (2) and a movable placement rack (3), characterized in that: The top of the inner wall of the storage chamber (1) is fixedly connected with a mounting plate (4), one side of the mounting plate (4) is fixedly connected with a driving motor (5), the output end of the driving motor (5) is fixedly connected with a screw rod (6), the screw rod (6) is rotatably connected to the mounting plate (4), a movable plate (7) is sleeved on the outside of the screw rod (6), the movable plate (7) is threadedly connected to the screw rod (6), a connecting mechanism (8) is arranged inside the movable plate (7), a first transverse groove (9) is provided on the side of the mounting plate (4) close to the movable plate (7), a second transverse groove (10) is provided inside the mounting plate (4) and below the first transverse groove (9), an inclined groove (11) is arranged between the first transverse groove (9) and the second transverse groove (10), the first transverse groove (9) and the second transverse groove (10) are both connected to the inclined groove (11), and a blocking mechanism (12) is arranged inside the inclined groove (11).

2. The gas-controlled fresh-keeping warehouse for fruit preservation according to claim 1, characterized in that: The connecting mechanism (8) comprises a first gear (801), the first gear (801) is rotatably connected to the movable plate (7), the first gear (801) is fixedly connected to a rotating plate (802) on the outside, the rotating plate (802) is fixedly connected to an end thereof away from the first gear (801), the rotating plate (802) is slidably connected to a movable plate (804) on the inside, the movable plate (804) is fixedly connected to a blocking rod (805) on the outside, and the blocking rod (805) vertically penetrates the movable plate (804) and the movable plate (804) The U-shaped plate (803) is formed on the movable plate (7) and extends to the inner side of the U-shaped plate (803). The blocking rod (805) is slidably connected to the U-shaped plate (803). The corresponding two side edges of the movable plate (7) are provided with a first sliding groove (806). The first sliding groove (806) is slidably connected to the inside of the first sliding groove (806). The first sliding rod (807) is fixedly connected to the movable plate (804). The inner side of the movable placement rack (3) is fixedly connected to a connecting rod (808). The connecting rod (808) is used in conjunction with the U-shaped plate (803).

3. The gas-controlled fresh-keeping warehouse for fruit preservation according to claim 2, characterized in that: The movable plate (804) is an L-shaped structure.

4. The gas-controlled fresh-keeping warehouse for fruit preservation according to claim 1, characterized in that: The movable plate (7) is internally slidably connected with a first rack (809), and the first rack (809) is meshedly connected with the first gear (801). A second slide groove (810) is provided on a side of the movable plate (7) close to the mounting plate (4). The second slide groove (810) is internally slidably connected with a second slide bar (811), and the second slide bar (811) is fixedly connected with the first rack (809). The second transverse groove (10) is internally slidably connected with a roller (812), and the roller (812) is rotationally connected with the second slide bar (811).

5. The gas-controlled fresh-keeping warehouse for fruit preservation according to claim 1, characterized in that: The blocking mechanism (12) comprises a rotating shaft (1201), the rotating shaft (1201) is rotatably connected to the mounting plate (4), the outside of the rotating shaft (1201) is fixedly connected to a baffle (1202), one end of the outside of the rotating shaft (1201) away from the baffle (1202) is fixedly connected to a worm gear (1203), one side of the mounting plate (4) is rotatably connected to a worm (1204), the worm (1204) is meshingly connected to the worm gear (1203), one end of the worm (1204) is fixedly connected to a first bevel gear (1205), and the side of the mounting plate (4) is rotatably connected to the worm gear (1204). A second bevel gear (1206) is rotatably connected to the mounting plate (4), the second bevel gear (1206) is meshed with the first bevel gear (1205), the outside of the second bevel gear (1206) is fixedly connected to a swing plate (1207), the outside of the mounting plate (4) and located on one side of the swing plate (1207) is rotatably connected to a circular plate (1208), a third sliding groove (1209) is provided inside the swing plate (1207), a third sliding rod (1210) is slidably connected inside the third sliding groove (1209), and the third sliding rod (1210) is fixedly connected to the circular plate (1208).

6. The gas-controlled fresh-keeping warehouse for fruit preservation according to claim 5, characterized in that: The outer part of the circular plate (1208) is provided with a second gear (1211), the second gear (1211) is rotatably connected to the circular plate (1208), the inner part of the circular plate (1208) is rotatably connected to a clamping block (1212), a first spring (1213) is provided between the clamping block (1212) and the circular plate (1208), and the inner side of the second gear (1211) is provided with a clamping groove (1214), the clamping groove (1214) and the clamping block (1212) are used in conjunction with each other.

7. A controlled atmosphere fresh-keeping warehouse for fruit preservation according to claim 6, characterized in that: The interior of the mounting plate (4) is slidably connected to a push block (1215), the top of the push block (1215) is fixedly connected to a connecting plate (1216), the exterior of the connecting plate (1216) is fixedly connected to a second rack (1217), and the second rack (1217) is meshingly connected to the second gear (1211).

8. The controlled atmosphere fresh-keeping warehouse for fruit preservation according to claim 7, characterized in that: The push block (1215) is internally slidably connected to a fixing rod (1218), the fixing rod (1218) is fixedly connected to the mounting plate (4), and a second spring (1219) is sleeved outside the fixing rod (1218) and located between the push block (1215) and the mounting plate (4).

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