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CN-224227073-U - Device for detecting total number of bacterial colonies in milk

CN224227073UCN 224227073 UCN224227073 UCN 224227073UCN-224227073-U

Abstract

The utility model discloses a device for detecting total bacterial colony count in milk, which comprises a rack, wherein a PLC (programmable logic controller) and an audible-visual alarm are sequentially arranged on the outer side wall of the rack. When the self-locking motor in the machine shell is started, the nut seat can be driven to slide back and forth at the bottom of the machine shell by matching with the transmission action of the screw rod and the nut seat, the driving frame and the sample collection tube can be driven to move back and forth, after the sample collection tube is controlled to collect milk samples opposite to a production line pipeline, the sample collection tube can be automatically moved to the main body of the impedance analyzer to output samples, the total number of bacterial colonies is indirectly quantified by measuring the electrical characteristic change caused by microorganism metabolism by using an impedance method, and then the sample collection tube is driven to be moved to a clean water tank to absorb clean water for flushing and to be moved to the upper part of a sewage tank to empty the sewage after cleaning, so that the self-cleaning function of the device is realized, and the problem of cross contamination of different milk samples is avoided.

Inventors

  • CHEN XIAOMENG
  • WANG ZHIWEI
  • SHAN WENLIANG
  • LI ZHIXING
  • WEI YONG

Assignees

  • 新疆天澳牧业有限公司

Dates

Publication Date
20260512
Application Date
20250429

Claims (8)

  1. 1. The utility model provides a device for detecting total number of bacterial colonies in milk, which is characterized in that, including frame (4), PLC controller (9) and audible-visual annunciator (10) are installed in proper order to the lateral wall of frame (4), the top welding of frame (4) has casing (7), self-locking motor (13) are installed to one side of casing (7) inside, the output of self-locking motor (13) is connected with lead screw (14), screw sleeve is equipped with nut seat (27) on lead screw (14), the bottom welding of nut seat (27) has connecting seat (15), the both sides of connecting seat (15) all are fixed with telescopic cylinder (5), the output of telescopic cylinder (5) is connected with driving frame (6), the both ends inside of driving frame (6) are fixed with first lid (18) and second lid (25) respectively, the bottom threaded connection of first lid (18) has sample collection tube (2), the bottom of second lid (25) is connected with aseptic buffer storage (8), the top of first lid (18) is installed to first lid (26) and is all installed microwave pump (1), one end of sample collection pipe (2) is provided with waste liquid discharge pipe (24) that are linked together with drawing liquid pump (1), the bottom of sample collection pipe (2) is provided with sample suction head (20), install aseptic solenoid valve (17) on sample suction head (20), sample collection pipe (2) of sample suction head (20) top install online conductivity sensor (16) and temperature sensor (21) in proper order, inside bottom of frame (4) is installed in proper order with sample suction head (20) assorted sewage case (3), impedance analyzer main part (11) and clean water tank (12).
  2. 2. A device for detecting the total number of colonies of bacteria in milk according to claim 1, wherein the top of the sample collection tube (2) is provided with a first threaded fitting tube (22) matching the first cap (18).
  3. 3. A device for detecting the total number of colonies of bacteria in milk according to claim 1, characterized in that the top of the sterile buffer storage bottle (8) is provided with a second threaded fitting tube (23) matching the second cap (25).
  4. 4. The device for detecting the total number of bacterial colonies in milk according to claim 1, wherein rubber sealing rings are arranged on inner side walls of the first cover body (18) and the second cover body (25).
  5. 5. A device for detecting the total number of colonies in milk according to claim 1, characterized in that the bottom of the sampling tip (20) is screwed with a filter tip (19).
  6. 6. A device for detecting the total number of colonies in milk according to claim 5, characterized in that the filter (19) is internally provided with a milk fat filter membrane layer.
  7. 7. The device for detecting the total number of bacterial colonies in milk according to claim 1, wherein the sewage tank (3), the impedance analyzer main body (11) and the clean water tank (12) are connected with the frame (4) in a clamping manner.
  8. 8. The device for detecting the total number of bacterial colonies in milk according to claim 1, wherein the frame (4) is made of stainless steel, and fixing screw holes are uniformly formed in the edge of the bottom of the frame (4).

Description

Device for detecting total number of bacterial colonies in milk Technical Field The utility model relates to the technical field of microorganism detection, in particular to a device for detecting total bacterial colony numbers in milk. Background The total number of the bacterial colonies in the milk is an important index for evaluating the sanitary quality of the milk, and in the actual production and processing process of the milk, a detection device is often required to be used for detecting, analyzing and processing the total number of the bacterial colonies of the milk on a production line, however, the device for detecting the total number of the bacterial colonies in the milk has some defects in actual use. The device for detecting the total number of the bacterial colonies in the milk usually needs to manually collect the samples and then send the samples to the detection equipment for detection, the efficiency of the manual sampling mode is low, the samples are not easy to be subjected to preliminary screening and automatic dilution pretreatment on the high-bacterial-load samples, and the accuracy of the detection result can be influenced when all the samples directly enter the impedance analyzer for detection. Disclosure of utility model The utility model aims to provide a device for detecting the total number of bacterial colonies in milk, so as to solve the problems in the background art. In order to achieve the purpose, the device for detecting the total number of bacterial colonies in milk comprises a frame, a PLC controller and an audible-visual alarm are sequentially arranged on the outer side wall of the frame, a shell is welded at the top of the frame, a self-locking motor is arranged on one side of the interior of the shell, an output end of the self-locking motor is connected with a screw rod, a nut seat is spirally sleeved on the screw rod, a connecting seat is welded at the bottom of the nut seat, telescopic cylinders are fixed on two sides of the connecting seat, a driving frame is connected with the output end of each telescopic cylinder, a first cover body and a second cover body are respectively fixed at two ends of the interior of the driving frame, a sample collecting tube is connected with the bottom threads of the first cover body, a sterile buffer storage bottle is connected with the bottom threads of the second cover body, a microwave radar sensor is arranged at the top of the interior of the first cover body, a liquid suction pump is arranged at the top of the first cover body, a discharge tube communicated with the liquid suction pump is arranged at one end of the sample collecting tube, a first electromagnetic valve is arranged at the bottom of the connecting seat, a sample collecting tube is sequentially connected with a sample collecting tube, a temperature sensor is arranged at the bottom of the electromagnetic valve is arranged at the bottom of the sampling tube, and a sample collecting tube is sequentially connected with a sample collecting tank, and a sample analyzer is sequentially arranged at the bottom of the electromagnetic valve. Preferably, the top of the sample collection tube is provided with a first threaded fitting tube which is matched with the first cover body. Preferably, the top of the sterile buffer storage bottle is provided with a second threaded fitting tube which is matched with the second cover body. Preferably, rubber sealing rings are arranged on the inner side walls of the first cover body and the second cover body. Preferably, the bottom of the sampling suction head is connected with a filter tip in a threaded manner. Preferably, a milk fat filter membrane layer is arranged in the filter tip, so that milk fat in a milk sample can be removed conveniently during sampling, and a chip structure in the impedance analyzer main body is prevented from being blocked. Preferably, the sewage tank, the impedance analyzer main body and the clean water tank are connected with the frame in a clamping way, so that the sewage tank, the impedance analyzer main body and the clean water tank can be conveniently detached and cleaned independently. Preferably, the frame is made of stainless steel, and fixing screw holes are uniformly formed in the edge of the bottom of the frame. Compared with the prior art, the utility model has the beneficial effects that: (1) The device for detecting the total number of the bacterial colonies in the milk optimizes the performance of the device by installing a liquid pump and the like, the liquid pump at the top of the first cover body is started, negative pressure is generated in the sample collecting pipe and the milk sample is collected through the sampling suction head of the bottom of the sample collecting pipe extending into the pipeline of the production line, meanwhile, the microwave radar sensor at the top end of the inner part of the first cover body calculates the depth of the collected milk sample by emitting microwa