Microbiological inspection and culture device

Abstract

The invention discloses a microbiological inspection culture device which comprises a culture box, a supporting plate, a material placing table, a culture dish, a blocking plate, a motor and a rotating mechanism, the incubator is arranged on the experiment table, a temperature adjusting device and a humidity adjusting device which are used for culturing microorganisms are arranged in the incubator, the supporting plate is fixedly installed at the upper end of the outer wall of one side of the incubator, the discharging table is arranged below the supporting plate and fixedly installed on the incubator, and a sliding groove is formed between the center of the upper end of the discharging table and the incubator. Sliding blocks are arranged at the lower ends of the culture dishes, the culture dishes are arranged in the sliding grooves in a sliding mode through the sliding blocks at the lower ends, a guide-in groove is formed in the middle of one side wall of the incubator, the sliding grooves penetrate through the guide-in groove and extend into the incubator, and the blocking plate penetrates through the upper end of the incubator in a sliding mode and makes movable contact with the inner wall of the incubator. The output end of the motor rotationally penetrates through the supporting plate, and the rotating mechanism is arranged at the lower end of the supporting plate.

Description

Technical Field

[0001] The present invention relates to the technical field of microbial testing, and in particular to a microbial testing and cultivation device. Background Art

[0002] Microorganisms require a special temperature environment for cultivation, and different microorganisms need to be cultivated at different temperatures. However, in existing microbial agent cultivation devices, most of them require experimenters to manually feed materials, so the feeding amount cannot be controlled, so that the feeding amount per unit area cannot be uniform. Moreover, the continuity of feeding cannot be guaranteed during manual feeding, resulting in uneven distribution of culture medium on the culture dish. Uneven distribution of culture medium will directly lead to inconsistent growth environment of microorganisms during the cultivation process, and ultimately lead to inaccurate experimental results.

[0003] Therefore, it is necessary to invent a microbial testing and culturing device to solve the above problems. Summary of the invention

[0004] In view of the above problems, the present invention provides a microorganism testing and culture device, which solves the problem of uneven distribution of culture medium on a culture dish.

[0005] The technical solution adopted by the present invention is: it includes an incubator, a support plate, a discharge table, a culture dish, a sealing plate, a motor and a rotating mechanism; the incubator is arranged on a laboratory table, and is provided with a temperature regulating device and a humidity regulating device for culturing microorganisms, the support plate is fixedly mounted on the upper end of an outer wall of one side of the incubator, the discharge table is arranged below the support plate, and the discharge table is fixedly mounted on the incubator, a slide groove is provided between the center of the upper end of the discharge table and the incubator, a slider is provided at the lower end of the culture dish, and the culture dish is slidably arranged in the slide groove through the lower end slider, an introduction groove is opened in the middle part of one side wall of the incubator, the slide groove penetrates the introduction groove and extends into the incubator, the sealing plate slides through the upper end of the incubator and is in active contact with the inner wall of the incubator, the motor is fixedly mounted on the support plate, the output end of the motor rotates through the support plate, and the rotating mechanism is arranged at the lower end of the support plate.

[0006] Further, as a preference, the rotating mechanism includes a fixed disk, a rotating guide cover, a screw, a gear 1, a screw sleeve, a guide block and a material discharge box; the fixed disk is fixed to the lower end surface of the support plate, and a tooth group is arranged at the lower end of the distal side of the fixed disk, the rotating guide cover is a rectangular box body with an opening on one side, the rotating guide cover is fixed to the output end of the motor, one end of the screw is rotatably arranged on the left inner wall of the rotating guide cover, and the other end is rotatably passed through the right side wall of the rotating guide cover, the gear 1 is fixed to the right end of the screw, and the gear 1 is intermittently meshed with the tooth group, the screw sleeve is threadedly connected to the screw, the guide block is rotatably arranged on the screw sleeve, and the two ends of the guide block are slidably arranged on the front and rear inner walls of the rotating guide cover, and the material discharge box is fixedly mounted on the lower end of the guide block.

[0007] Furthermore, as a preference, a flow control ring, a feed pipe, a micro air pump, a movable lead-out tube and a spring are provided in the material box; the material box contains a rectangular cavity, the flow control ring is fixed in the middle of the material box, the middle of the flow control ring is a flow guide channel, and the flow control ring divides the rectangular cavity into an upper cavity and a lower cavity, the feed pipe is connected to the upper cavity, the micro air pump is fixed in the upper end of the material box, and its input end is connected to the outside, and the output end is connected to the upper cavity, a sliding groove is provided at the lower end of the material box, the movable lead-out tube is slidably arranged in the sliding groove in a horizontal direction, and the upper end of the movable lead-out tube overlaps the inner wall of the material box, and the spring is connected between the movable lead-out tube and the inner wall of the sliding groove.

[0008] Furthermore, as a preference, the rotating mechanism also includes a flow rate control component, which specifically includes a connecting pipe, a sliding rod and a moving block; a Z-shaped groove is provided on the right inner wall of the material discharge box, one end of which is connected to the outside, and the other end is connected to the guide channel, the connecting pipe is fixed on the right side wall of the material discharge box, and the connecting pipe is connected to the Z-shaped groove, one end of the sliding rod is sealed and slid in the connecting pipe, and the other end is fixed to the right inner wall of the rotating guide cover, the moving block is seal-slidably arranged in the Z-shaped groove at one end away from the connecting pipe, and hydraulic oil is arranged in the closed space between the moving block and the sliding rod.

[0009] Further, as a preference, the rotating mechanism also includes a linkage assembly, which specifically includes a pawl, a fixed rod, a positioning ring, a ratchet, gear two, a spring two, a ring, a rectangular rod, a sleeve and gear three; the pawl is connected to the screw by a torsion spring, the fixed rod is fixed to the inner wall of the rotating guide cover, the positioning ring is fixed to the fixed rod, and the positioning ring is coaxially arranged with the screw, the ratchet set is rotatably arranged in the positioning ring, and the pawl is meshed with the ratchet, the gear two is fixed on the ratchet, the spring two is connected between the gear two and the left inner wall of the rotating guide cover, the ring set is rotatably arranged in the left side wall of the rotating guide cover, the rectangular rod is fixed in the ring, a rectangular groove is opened in the sleeve, and the sleeve rotates on the left side wall of the discharge box, the rectangular rod is slidably arranged in the rectangular groove of the sleeve, the gear three is fixed on the rectangular rod, and the gear three is meshed with the gear two.

[0010] Furthermore, as preferably, the linkage assembly also includes a rotating rod 1, a bevel gear 1, a rotating rod 2, a bevel gear 2, a cam and a connecting column; the rotating rod 1 rotates and passes through the left side wall of the unloading box, and the rotating rod 1 is fixed to the sleeve, a gear groove is opened in the left side wall of the upper end of the unloading box, and a cam groove is opened in the left side wall of the lower end of the unloading box, and the cam groove is connected with the lower cavity, the bevel gear 1 is fixed to the end of the rotating rod 1 away from the sleeve, one end of the rotating rod 2 is rotatably set on the upper end inner wall of the gear groove, and the other end rotates and passes through the inner wall of the unloading box and extends into the cam groove, the bevel gear 2 is fixed on the rotating rod 2, the bevel gear 1 is meshed with the bevel gear 2, and the bevel gear 1 and the bevel gear 2 are both set in the gear groove, the cam is fixed at the lower end of the rotating rod 2 and is rotatably set in the cam groove, the connecting column is fixed on the left side wall of the movable guide tube, and the cam is in movably contact with the connecting column.

[0011] Furthermore, preferably, a lifting ring is fixed to the upper end of the sealing plate.

[0012] Advantages of the present invention: In the present invention, the tooth group and the gear are meshed in a cycle, so that the material box can discharge materials in a multi-layer ring manner. During this period, the flow rate control component is used to keep the material discharge amount of each layer the same. Moreover, the linkage component is used to make the multi-layer culture medium on the culture dish form a continuous state. At this point, the culture medium on the culture dish can achieve the best uniform distribution.

[0013] In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the rotating mechanism of the present invention; Figure 3 It is a left axonometric structural schematic diagram of the rotating mechanism of the present invention; Figure 4 It is a right axonometric structural schematic diagram of the rotating mechanism of the present invention; Figure 5 It is a front cross-sectional view of the blanking box of the present invention; Figure 6 It is an enlarged view of point A of the present invention; Figure 7 It is an enlarged view of B of the present invention; Figure 8 It is an enlarged view of point C of the present invention; Fig. 9 It is a cross-sectional schematic diagram of the D position of the present invention.

[0016] Figure numerals: 1, incubator; 2, support plate; 3, discharge table; 4, culture dish; 5, blocking plate; 6, motor; 7, rotating mechanism; 31, slide groove; 11, introduction groove; 51, lifting ring; 71, fixed plate; 72, rotating guide cover; 73, screw; 74, gear one; 75, screw sleeve; 76, guide block; 77, unloading box; 771, tooth group; 771, flow control ring; 772, feed pipe; 773, micro air pump; 774, movable outlet pipe; 775, spring one; 7711, diversion channel ;8. Flow rate control component;81. Connecting pipe;82. Slide rod;83. Moving block;84. Z-shaped groove;9. Linkage component;91. Ratchet;92. Fixed rod;93. Positioning ring;94. Ratchet;95. Gear two;96. Spring two;97. Ring;98. Rectangular rod;99. Sleeve;100. Gear three;101. Turn rod one;102. Bevel gear one;103. Turn rod two;104. Bevel gear two;105. Cam;106. Connecting column;7712. Gear groove;7713. Cam groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] refer to Figures 1 to 9 , a microorganism inspection and cultivation device, comprising an incubator 1, a support plate 2, a discharge table 3, a culture dish 4, a blocking plate 5, a motor 6 and a rotating mechanism 7; the incubator 1 is arranged on a laboratory table, and is provided with a temperature regulating device and a humidity regulating device for cultivating microorganisms, the support plate 2 is fixedly mounted on the upper end of the outer wall of one side of the incubator 1, the discharge table 3 is arranged below the support plate 2, and the discharge table 3 is fixedly mounted on the incubator 1, a slide groove 31 is provided between the center of the upper end of the discharge table 3 and the incubator 1, a slider is provided at the lower end of the culture dish 4, and the culture dish 4 is slidably arranged in the slide groove 31 through the lower end slider, an introduction groove 11 is opened in the middle of one side wall of the incubator 1, the slide groove 31 penetrates the introduction groove 11 and extends into the incubator 1, the blocking plate 5 slides through the upper end of the incubator 1, and is in active contact with the inner wall of the incubator 1, the motor 6 is fixedly mounted on the support plate 2, the output shaft of the motor 6 rotates through the support plate 2, and the rotating mechanism 7 is arranged at the lower end of the support plate 2.

[0020] That is, see Figure 1 The rotating mechanism 7 can evenly feed the culture medium. After the feeding is completed, the experimenter lifts the sealing plate 5 to open the introduction groove 11, and pushes the culture dish 4 that has been fed into the incubator 1 along the slide groove 31, and then loosens the sealing plate 5, so that the culture dish 4 can be sealed and cultured in the incubator 1.

[0021] In the present invention, the rotating mechanism 7 includes a fixed plate 71, a rotating guide cover 72, a screw rod 73, a gear 74, a screw sleeve 75, a guide block 76 and a material box 77; the fixed plate 71 is fixed to the lower end surface of the support plate 2, and a tooth group 711 is provided at the lower end of the distal side of the fixed plate 71, the rotating guide cover 72 is a rectangular box body with an opening on one side, the rotating guide cover 72 is fixed to the output end of the motor 6, one end of the screw rod 73 is sleeved and rotatably arranged on the left inner wall of the rotating guide cover 72, and the other end rotates and penetrates the right side wall of the rotating guide cover 72, the gear 74 is fixed to the right end of the screw rod 73, and the gear 74 is intermittently meshed with the tooth group 711, the screw sleeve 75 is threadedly connected to the screw rod 73, the guide block 76 is sleeved and fixed on the screw sleeve 75, and the two ends of the guide block 76 are slidably arranged on the front and rear inner walls of the rotating guide cover 72, and the material box 77 is fixedly mounted on the lower end of the guide block 76.

[0022] Specifically, see Figures 2 to 3 When the motor 6 drives the rotating guide cover 72 to revolve, it can drive the gear 74 to revolve synchronously through the screw 73, and the gear 74 can mesh with the tooth group 711 during the revolution, so that the gear 74 can intermittently rotate during the revolution, and then drive the screw 73 to intermittently rotate. Therefore, the screw 73 can drive the guide block 76 and the discharge box 77 to move periodically along the direction of the screw 73 by meshing with the screw sleeve 75. Therefore, the discharge box 77 can discharge materials in a multi-layer ring manner, and the spacing between each layer of rings is the same, thereby improving the uniformity of culture medium distribution.

[0023] In the present invention, a flow control ring 771, a feed pipe 772, a micro air pump 773, a movable outlet pipe 774 and a spring 775 are provided in the material box 77; the material box 77 contains a rectangular cavity, the flow control ring 771 is fixed in the middle of the material box 77, the middle of the flow control ring 771 is a flow guide channel 7711, and the flow control ring 771 divides the rectangular cavity into an upper cavity and a lower cavity, the feed pipe 772 is connected to the upper cavity, the micro air pump 773 is fixed in the upper end of the material box 77, and its input end is connected to the outside, and the output end is connected to the upper cavity, a sliding groove is provided at the lower end of the material box 77, the movable outlet pipe 774 is slidably arranged in the sliding groove along the horizontal direction, and the upper end of the movable outlet pipe 774 is overlapped on the inner wall of the material box 77, and the spring 775 is connected between the movable outlet pipe 774 and the inner wall of the sliding groove.

[0024] It should be explained that during the feeding process, the feed pipe 772 is blocked by a plug to prevent the culture medium from being thrown out of the feed pipe 772.

[0025] It is also necessary to explain that, see Figure 8, the movable guide pipe 774 can move in the horizontal direction of the sliding groove.

[0026] As a preferred embodiment, the rotating mechanism 7 also includes a flow rate control component 8, which specifically includes a connecting pipe 81, a sliding rod 82 and a moving block 83; a Z-shaped groove 84 is provided on the right inner wall of the discharge box 77, one end of which is connected to the outside, and the other end is connected to the guide channel 7711, the connecting pipe 81 is fixed on the right side wall of the discharge box 77, and the connecting pipe 81 is connected to the Z-shaped groove 84, one end of the sliding rod 82 is sealed and slidable in the connecting pipe 81, and the other end is fixed to the right inner wall of the rotating guide cover 72, the moving block 83 is sealingly slidably arranged in the Z-shaped groove 84 away from the end of the connecting pipe 81, and hydraulic oil is arranged in the closed space between the moving block 83 and the sliding rod 82.

[0027] It should be noted that when the culture medium is stored in the upper cavity, the moving block 83 blocks the diversion channel 7711 to prevent the culture medium from being discharged in advance.

[0028] In addition, before unloading begins, the unloading box 77 is located directly above the center of the culture dish 4.

[0029] For explanation, see Figure 5 When the slide bar 82 moves to the right side of the connecting tube 81, the moving block 83 will move a certain distance to the right. The hydraulic oil, as a power transmission fluid, can completely transmit the power of the slide bar 82 to the moving block 83, preventing energy loss between the slide bar 82 and the moving block 83, thereby preventing the moving block 83 from being unable to move.

[0030] It should be explained that, as the material box 77 revolves, the corresponding linear speeds in different rings gradually increase, resulting in a gradual decrease in the material discharge amount of different rings per unit area, leading to uneven distribution of the culture medium.

[0031] Therefore, please refer to Figures 4 to 5Before the motor 6 is started, the material box 77 is placed directly above the culture dish 4. At this time, the moving block 83 completely blocks the guide channel 7711, so no material is discharged; after the motor 6 is started, the rotating guide cover 72 drives the material box 77 to start orbiting. When the material box 77 orbits one circle, the gear 1 74 and the tooth group 711 complete a meshing, so that the screw 73 indirectly drives the material box 77 to move a distance to the left. At this time, the connecting pipe 81 moves left relative to the sliding rod 82, so that the moving block 83 moves right When the lower material box 77 continues to revolve one circle, the moving block 83 will continue to move to the right for a certain distance. Therefore, each time the lower material box 77 revolves one circle, the flow guide channel 7711 will increase its flow area by a certain amount. That is to say, when the lower material box 77 is performing multi-layer annular material discharging from the inside to the outside, the material discharging amount will also increase synchronously to ensure that the material discharging amount per unit area of ​​the culture dish 4 is the same, thereby further improving the uniformity of the distribution of the culture medium.

[0032] As a preferred embodiment, the rotating mechanism 7 also includes a linkage assembly 9, which specifically includes a pawl 91, a fixed rod 92, a positioning ring 93, a ratchet 94, a gear 2 95, a spring 2 96, a collar 97, a rectangular rod 98, a sleeve 99 and a gear 3 100; the pawl 91 is connected to the screw 73 by a torsion spring, the fixed rod 92 is fixed to the inner wall of the rotating guide cover 72, the positioning ring 93 is fixed to the fixed rod 92, and the positioning ring 93 is coaxially arranged with the screw 73, the ratchet 94 is rotatably arranged in the positioning ring 93, and the pawl 91 is rotatably arranged with the screw 73. The ratchet 94 is meshed, the gear 2 95 is fixed on the ratchet 94, the spring 2 96 is connected between the gear 2 95 and the left inner wall of the rotating guide cover 72, the ring 97 is rotatably arranged in the left wall of the rotating guide cover 72, the rectangular rod 98 is fixed in the ring 97, a rectangular groove is opened in the sleeve 99, and the sleeve 99 is rotatably arranged on the left wall of the discharge box 77, the rectangular rod 98 is slidably arranged in the rectangular groove of the sleeve 99, the gear 3 100 is fixed on the rectangular rod 98, and the gear 3 100 is meshed with the gear 2 95.

[0033] For explanation, see Figure 6 When the screw 73 rotates, the pawl 91 will mesh with the ratchet 94, so that the screw 73 can drive the gear 2 95 to rotate in the forward direction, and then the spring 2 96 will twist and store energy. When the screw 73 stops rotating, the spring 2 96 begins to release energy, driving the gear 2 95 and the ratchet 94 to rotate in the opposite direction. At this time, the ratchet 94 will rotate in the opposite direction relative to the pawl 91, that is, the ratchet 94 will slip on the pawl 91, so that the gear 2 95 will mesh with the gear 3 100, driving the rectangular rod 98 to rotate, and the rectangular rod 98 is meshed with the rectangular groove. Therefore, the sleeve 99 can rotate synchronously with the rectangular rod 98.

[0034] In the present invention, the linkage assembly 9 also includes a rotating rod 101, a bevel gear 102, a rotating rod 103, a bevel gear 104, a cam 105 and a connecting column 106; the rotating rod 101 rotates and penetrates the left side wall of the unloading box 77, and the rotating rod 101 is fixed to the sleeve 99, a gear groove 7712 is provided in the left side wall of the upper end of the unloading box 77, a cam groove 7713 is provided in the left side wall of the lower end of the unloading box 77, and the cam groove 7713 is communicated with the lower cavity, the bevel gear 102 is fixed to the end of the rotating rod 101 away from the sleeve 99, and the rotating rod 103 One end is rotatably mounted on the inner wall of the upper end of the gear groove 7712, and the other end is rotatably penetrates the inner wall of the discharge box 77 and extends into the cam groove 7713. The bevel gear 104 is fixed on the rotating rod 103, and the bevel gear 102 is meshed with the bevel gear 104, and the bevel gear 102 and the bevel gear 104 are both set in the gear groove 7712. The cam 105 is fixed on the lower end of the rotating rod 103 and rotatably mounted in the cam groove 7713. The connecting column 106 is fixed on the left side wall of the movable outlet tube 774, and the cam 105 is in active contact with the connecting column 106.

[0035] It should be explained that the ratchet 94 and the pawl 91 are both configured with frosted material, that is, when gear 2 95 and the ratchet 94 rotate in opposite directions, there is a certain friction between the ratchet 94 and the pawl 91. This friction will have a certain damping effect on the elastic force of spring 2 96, so that the reversal speed of gear 2 95 will slow down. Specifically, when gear 1 74 and tooth group 711 complete one meshing to the next meshing time period, gear 2 95 stops rotating.

[0036] For details, please refer to Figures 5 to 9 When the material box 77 revolves to discharge materials, the sleeve 99 drives the rotating rod 101 to rotate, and the rotating rod 103 rotates through the engagement of the bevel gear 102 with the bevel gear 2 104, thereby driving the cam 105 to rotate. When the cam 105 rotates, it can intermittently squeeze the connecting column 106 to move rightward in the horizontal direction. Due to the elastic force of the spring 1 775, the connecting column 106 is always in active contact with the cam 105. Therefore, during the material box 77 revolves to discharge materials, the movable outlet pipe 774 swings on both sides perpendicular to the annular tangent direction. During the swinging process of the movable outlet tube 774, a small amount of culture medium can be thrown to both sides below the discharge box 77 by inertia. Similarly, when the discharge box 77 rotates in the next ring track, the movable outlet tube 774 continues to throw a small amount of culture medium to both sides below the discharge box 77. Therefore, the culture medium thrown from the first layer can be mixed with the culture medium thrown from the second layer, so that the two layers of culture medium form a continuous state, and then the multiple layers of culture medium on the culture dish 4 can form a continuous state, thereby further improving the uniformity of the distribution of the culture medium.

[0037] In addition, when the movable outlet tube 774 is swung to scatter the culture medium, it gradually decreases from near to far, so that the culture medium scattered from two adjacent layers can overlap each other, so that the culture medium in the continuous part can be evenly distributed.

[0038] It should be noted that ratchet 2 is fixed in sleeve 99, and pawl 2 is connected to rotating rod 101 by torsion spring 2. That is to say, when spring 2 96 is storing energy, that is, when gear 2 95 rotates forward, gear 3 100, rectangular rod 98 and sleeve 99 rotate in the opposite direction, ratchet 2 and pawl 2 rotate relative to each other, that is, ratchet 2 will slip on pawl 2, and rotating rod 101 will not rotate with sleeve 99. Similarly, when spring 2 96 releases energy, that is, when gear 2 95 rotates in the opposite direction, ratchet 2 and pawl 2 are meshed, so that rotating rod 101 will rotate synchronously with sleeve 99.

[0039] That is to say, when the lower material box 77 switches its position from the inner ring to the outer ring, the ratchet wheel 2 slips on the pawl 2, the rotating rod 101 does not rotate, and the cam 105 does not rotate, and the movable outlet tube 774 does not swing, thereby avoiding concentrated spillage and causing uneven material discharge; and when the lower material box 77 rotates in a circle, the ratchet wheel 2 engages with the pawl 2, and the rotating rod 101 rotates, thereby driving the cam 105 to rotate through the engagement of the bevel gears, and then the movable outlet tube 774 spills the culture medium to both sides along the circumferential direction.

[0040] As a preferred embodiment, a lifting ring 51 is fixed to the upper end of the sealing plate 5 to facilitate the experimenter to lift the sealing plate 5 .

[0041] Specifically, during implementation, the culture dish 4 to be unloaded is first placed at the rightmost end of the slide groove 31 through the lower end slider. Before unloading, the unloading box 77 is in the middle of the screw 73, that is, the unloading box 77 is located directly above the culture dish, so no unloading is performed, and the motor 6 is started to start unloading. When the motor 6 drives the rotating guide cover 72 to revolve, the screw 73 can drive the gear 1 74 to revolve synchronously, and the gear 1 74 can mesh with the tooth group 711 during the revolution, so that the gear 1 74 can intermittently rotate during the revolution, and then can drive the screw 73 to intermittently rotate. Therefore, the screw 73 can drive the guide block 76 and the unloading box 77 to periodically move along the direction of the screw 73 by meshing with the screw sleeve 75. Therefore, the material box 77 can unload materials from the inside to the outside in a multi-layer annular manner, and the spacing between each layer of rings is the same; when the material box 77 moves from the inside to the outside, the connecting pipe 81 moves left relative to the sliding rod 82, so that the moving block 83 moves a certain distance to the right, and then the guide channel 7711 is opened to start unloading; when the material box 77 continues to revolve one circle, the moving block 83 continues to move a certain distance to the right. Therefore, when the material box 77 revolves one circle, the flow guide channel 7711 will increase a certain flow area, that is, when the material box 77 is unloading materials from the inside to the outside in a multi-layer annular manner, the unloading amount will also increase synchronously to ensure that the unloading amount per unit area of ​​the culture dish 4 is the same; Moreover, when the lower material box 77 moves from one layer of circular track to the next layer of circular track, that is, the screw 73 rotates, the pawl 91 will mesh with the ratchet 94, so that the screw 73 can drive the gear 2 95 to rotate forward, and then the spring 2 96 will twist and store energy. At the same time, when the gear 2 95 rotates forward, the gear 3 100, the rectangular rod 98 and the sleeve 99 rotate in the opposite direction, and the ratchet 2 and the pawl 2 rotate relative to each other, that is, the ratchet 2 will slip on the pawl 2, and the rotating rod 101 will not rotate with the sleeve 99, so that the cam 105 will not rotate, and then the movable outlet pipe 774 will not swing, thereby avoiding concentrated spillage; When the lower material box 77 revolves on the next circular track, that is, the screw 73 stops rotating, the spring 2 96 starts to release energy, driving the gear 2 95 and the ratchet 94 to rotate in the opposite direction. At this time, the ratchet 94 will rotate in the opposite direction relative to the pawl 91, that is, the ratchet 94 will slip on the pawl 91, so that the gear 2 95 is meshed with the gear 3 100, driving the rectangular rod 98 to rotate, and the rectangular rod 98 is meshed with the sliding groove. Therefore, the sleeve 99 can rotate synchronously with the rectangular rod 98, and the sleeve 99 will drive the rotating rod 1 101 to rotate, and the rotating rod 2 103 will rotate through the meshing of the bevel gear 102 and the bevel gear 2 104, thereby driving the cam 105 to rotate, and the cam 105 can intermittently squeeze when rotating. The connecting column 106 moves to the right along the horizontal direction. Due to the elastic force of spring 1 775, the connecting column 106 is always in active contact with the cam 105. Therefore, during the process of the discharge box 77 revolving and discharging, the movable outlet tube 774 will swing on both sides perpendicular to the circular tangent direction. During the swinging process of the movable outlet tube 774, a small amount of culture medium can be thrown to both sides below the discharge box 77 through inertia. Similarly, when the discharge box 77 rotates in the next layer of the ring track, the movable outlet tube 774 continues to throw a small amount of culture medium to both sides below the discharge box 77. Therefore, the culture medium thrown from the first layer can be mixed with the culture medium thrown out from the second layer, so that the two layers of culture medium form a continuous state.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A microbial testing and cultivation device, characterized in that: The invention comprises an incubator (1), a support plate (2), a discharge table (3), a culture dish (4), a blocking plate (5), a motor (6) and a rotating mechanism (7); the incubator (1) is arranged on a laboratory table, and is provided with a temperature regulating device and a humidity regulating device for cultivating microorganisms; the support plate (2) is fixedly mounted on the upper end of an outer wall of one side of the incubator (1); the discharge table (3) is arranged below the support plate (2), and the discharge table (3) is fixedly mounted on the incubator (1); a slide groove (31) is provided between the center of the upper end of the discharge table (3) and the incubator (1); A slider is provided at the lower end of the culture dish (4), and the culture dish (4) is slidably arranged in a slide groove (31) through the slider at the lower end. An introduction groove (11) is provided in the middle of a side wall of the culture box (1), and the slide groove (31) penetrates the introduction groove (11) and extends into the culture box (1). The blocking plate (5) slides through the upper end of the culture box (1) and is in active contact with the inner wall of the culture box (1). The motor (6) is fixedly mounted on the support plate (2), and the output shaft of the motor (6) rotates and penetrates the support plate (2). The rotating mechanism (7) is arranged at the lower end of the support plate (2).

2. A microorganism testing and cultivation device according to claim 1, characterized in that: The rotating mechanism (7) comprises a fixed plate (71), a rotating guide cover (72), a screw (73), a gear (74), a screw sleeve (75), a guide block (76) and a material box (77); the fixed plate (71) is fixed to the lower end surface of the support plate (2), and a tooth group (711) is provided at the lower end of the distal side of the fixed plate (71); the rotating guide cover (72) is a rectangular box body with an opening on one side; the rotating guide cover (72) is fixed to the output end of the motor (6); one end of the screw (73) is sleeved and rotatably arranged on the rotating guide The guide block (76) is fixed on the left inner wall of the cover (72), and the other end rotates and penetrates the right wall of the rotating guide cover (72). The gear 1 (74) is fixed to the right end of the screw rod (73), and the gear 1 (74) is intermittently meshed with the tooth group (711). The screw sleeve (75) is threadedly connected to the screw rod (73). The guide block (76) is fixed on the screw sleeve (75), and the two ends of the guide block (76) are slidably arranged on the front and rear inner walls of the rotating guide cover (72). The unloading box (77) is fixedly installed on the lower end of the guide block (76).

3. A microorganism testing and cultivation device according to claim 2, characterized in that: The material box (77) is provided with a flow control ring (771), a feed pipe (772), a micro air pump (773), a movable outlet pipe (774) and a spring (775); the material box (77) is provided with a rectangular cavity, the flow control ring (771) is fixed in the middle of the material box (77), the middle of the flow control ring (771) is a flow guide channel (7711), and the flow control ring (771) divides the rectangular cavity into an upper cavity and a lower cavity, the feed pipe (772) ) is connected to the upper cavity, the micro air pump (773) is fixed in the upper end of the material box (77), and its input end is connected to the outside, and its output end is connected to the upper cavity, the lower end of the material box (77) is provided with a sliding groove, the movable outlet tube (774) is slidably arranged in the sliding groove along the horizontal direction, and the upper end of the movable outlet tube (774) is overlapped on the inner wall of the material box (77), and the spring 1 (775) is connected between the movable outlet tube (774) and the inner wall of the sliding groove.

4. A microorganism testing and cultivation device according to claim 3, characterized in that: The rotating mechanism (7) further comprises a flow rate regulating component (8), which specifically comprises a connecting pipe (81), a sliding rod (82) and a moving block (83); a Z-shaped groove (84) is provided on the right inner wall of the material discharge box (77), one end of which is connected to the outside and the other end is connected to the guide channel (7711); the connecting pipe (81) is fixed to the right wall of the material discharge box (77), and the connecting pipe (81) is connected to the Z-shaped groove (84); one end of the sliding rod (82) is sealed and slidable in the connecting pipe (81), and the other end is fixed to the right inner wall of the rotating guide cover (72); the moving block (83) is sealed and slidably arranged in the Z-shaped groove (84) at one end away from the connecting pipe (81), and hydraulic oil is arranged in the closed space between the moving block (83) and the sliding rod (82).

5. A microorganism testing and cultivation device according to claim 3, characterized in that: The rotating mechanism (7) further comprises a linkage assembly (9), which specifically comprises a pawl (91), a fixing rod (92), a positioning ring (93), a ratchet (94), a second gear (95), a second spring (96), a collar (97), a rectangular rod (98), a sleeve (99) and a third gear (100); the pawl (91) is connected to the screw rod (73) by a torsion spring, the fixing rod (92) is fixed to the inner wall of the rotating guide cover (72), the positioning ring (93) is fixed to the fixing rod (92), and the positioning ring (93) is coaxially arranged with the screw rod (73), the ratchet (94) is rotatably arranged in the positioning ring (93), and the pawl (91) The second gear (95) is meshed with the ratchet wheel (94), the second gear (95) is fixed on the ratchet wheel (94), the second spring (96) is connected between the second gear (95) and the left inner wall of the rotating guide cover (72), the collar (97) is rotatably arranged in the left wall of the rotating guide cover (72), the rectangular rod (98) is fixed in the collar (97), a rectangular groove is formed in the sleeve (99), and the sleeve (99) rotates on the left wall of the discharge box (77), the rectangular rod (98) is slidably arranged in the rectangular groove of the sleeve (99), the third gear (100) is fixed on the rectangular rod (98), and the third gear (100) is meshed with the second gear (95).

6. A microorganism testing and cultivation device according to claim 5, characterized in that: The linkage assembly (9) further comprises a rotating rod (101), a bevel gear (102), a rotating rod (103), a bevel gear (104), a cam (105) and a connecting column (106); the rotating rod (101) rotates and penetrates the left side wall of the material discharge box (77), and the rotating rod (101) is fixed to the sleeve (99); a gear groove (7712) is provided in the left side wall of the upper end of the material discharge box (77), a cam groove (7713) is provided in the left side wall of the lower end of the material discharge box (77), and the cam groove (7713) is communicated with the lower cavity; the bevel gear (102) is fixed to the end of the rotating rod (101) away from the sleeve (99); the rotating rod (103) is fixed to the end of the rotating rod (101) away from the sleeve (99); ) one end is rotatably mounted on the inner wall of the upper end of the gear groove (7712), and the other end is rotatably penetrated through the inner wall of the unloading box (77) and extends into the cam groove (7713); the second bevel gear (104) is fixed on the second rotating rod (103); the first bevel gear (102) is meshed with the second bevel gear (104), and the first bevel gear (102) and the second bevel gear (104) are both arranged in the gear groove (7712); the cam (105) is fixed on the lower end of the second rotating rod (103) and rotatably mounted in the cam groove (7713); the connecting column (106) is fixed on the left side wall of the movable outlet tube (774), and the cam (105) is in active contact with the connecting column (106).

7. A microorganism testing and cultivation device according to claim 1, characterized in that: A lifting ring (51) is fixed to the upper end of the blocking plate (5).

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