CN115717161A - Method and device for detecting coliform group in food - Google Patents

Abstract

The invention discloses a method and a device for detecting coliform groups in food, and relates to the technical field of coliform group detection; the invention solves the problems of troublesome operation and low detection efficiency, and comprises a device box and a placing plate arranged in the device box, wherein the top of the placing plate is provided with detection filter paper, the back surface of the inner surface of the device box is rotationally connected with a turnover shaft, one end of the turnover spline shaft is fixedly connected with a turnover spline shaft, and the bottom of the placing plate is fixedly connected with an installation block; according to the invention, through the arrangement of the reciprocating mechanism, the sterilizing lamp can reciprocate, so that the sterilization of the detection filter paper is more uniform, and meanwhile, the electric heating plate can reciprocate, so that the drying is more uniform, the sterilization and the drying are uniform, the detection effect of the device is increased, meanwhile, the linkage sealing square tube reciprocates, the cleaning of the filter screen by the cleaning spray head is facilitated, the integrated design is realized, the operation is simple and convenient, and the detection efficiency is high.

Description

Method and device for detecting coliform group in food

Technical Field

The invention relates to the technical field of coliform group detection, in particular to a method and a device for detecting coliform groups in food.

Background

Coliform group is the main bacterium in human and animal excrement, so is used as the indicator bacterium which reflects whether the food is polluted by excrement or not or the pollution degree, the high or low of the number of coliform group indicates the pollution degree of the food by similar excrement, so the coliform group is used as the excrement pollution index to evaluate the sanitation quality of the food, and the possibility of polluting the intestinal pathogenic bacteria in the food is deduced, the coliform group is used as one of the main indexes for evaluating the sanitation quality of the food, and China brings the coliform group into the 'cause standard'.

At present, a fermentation method and a test paper detection method are used for detecting coliform groups, when the test paper detection method is used, the test paper needs to be sterilized firstly, then the sterilized test paper is soaked in a culture medium, then the test paper is taken out and dried, and finally a detected product is diluted and dropped on the test paper for detection.

In view of the above problems, the inventors propose a method and apparatus for detecting coliform in food to solve the above problems.

Disclosure of Invention

The problems that the operation is troublesome and the detection efficiency is low are solved; the invention aims to provide a method and a device for detecting coliform bacteria in food.

In order to solve the technical problems, the invention adopts the following technical scheme: the device comprises a device box and a placing plate arranged in the device box, wherein the front side of the device box is provided with two sealing doors, one sealing door is used for taking out the placing plate and placing detection filter paper, the other sealing door is used for placing the dried detection filter paper, the top of the placing plate is provided with the detection filter paper, the back side of the inner surface of the device box is rotationally connected with a turnover shaft, one end of the turnover shaft is fixedly connected with a turnover spline shaft, the bottom of the placing plate is fixedly connected with an installation block, the front side of the installation block is provided with a spline groove matched with the turnover spline shaft, the outer surface of the turnover shaft is sleeved and fixedly connected with a magnet plate, the magnet plate is used for adsorbing the installation block and increasing the stability of the placing plate, the inner surface of the device box is fixedly connected with a first chute plate above the placing plate, and the inner surface of the first chute plate is connected with a linkage installation strip through a slider in a sliding manner, the bottom of the linkage mounting bar is fixedly connected with a sterilizing lamp, the inner surface of the device box is fixedly connected with a second sliding chute plate which is positioned below the placing plate, the inner surface of the second sliding chute plate is connected with a linkage sealing square tube in a sliding way through a sliding block, the bottom of the linkage sealing square tube is fixedly connected with an electric heating plate, a reciprocating mechanism is arranged between the linkage sealing square tube and the linkage mounting bar, the top of the second sliding chute plate is provided with a linkage mechanism, the bottom of the inner cavity of the device box is provided with a circulating mechanism, the sterilizing lamp can reciprocate through the arrangement of the reciprocating mechanism, so that the sterilization of the detection filter paper is more uniform, the electric heating plate can reciprocate simultaneously, the drying is more uniform, meanwhile, the linkage sealing square tube reciprocates, the cleaning of the filter screen by a cleaning water spray head is facilitated, and the device is designed integrally, easy operation is convenient, and detection effect is good, the top fixedly connected with water tank of device incasement surface, the internal surface fixedly connected with clearance water pump of water tank, the play water end intercommunication of clearance water pump has flexible hose, flexible hose's one end run through the water tank and with the top intercommunication of linkage sealing side pipe, the front intercommunication of linkage sealing side pipe has the clearance sprinkler bead, the quantity of clearance sprinkler bead is provided with a plurality of, and the water tank is used for storing the clear water, and the clearance water pump provides power for the water spray of clearance sprinkler bead, and flexible hose makes linkage sealing side pipe can reciprocating motion, guarantees device's normal use.

Preferably, the link mechanism includes a link support mounting plate, the bottom of the link support mounting plate is fixedly connected with the top of the second chute plate, the top of the link support mounting plate is rotatably connected with a first link spline shaft sleeve through a bearing, one end of the first link spline shaft sleeve is fixedly connected with a first bevel gear, the link support mounting plate is used for mounting the first link spline shaft sleeve and a telescopic rod, the first bevel gear is used for cooperating with a second bevel gear so as to drive the roll-over shaft to rotate, the outer surface of the roll-over shaft is sleeved and fixedly connected with a second bevel gear adapted to the first bevel gear, the inner surface of the first link spline shaft sleeve is slidably connected with a link spline shaft, the outer surface of the link spline shaft is rotatably connected with a connecting frame through a bearing, one side of the connecting frame is fixedly connected with a telescopic rod for cooperating with the second link spline shaft sleeve so that the second link spline shaft sleeve can drive the link spline shaft to rotate so as to complete the transmission and ensure the normal use of the apparatus, one end of the telescopic rod is fixedly connected with one side of the link support mounting plate, the outer surface of the first link shaft sleeve is fixedly connected with a pin shaft sleeve, one side of the connecting frame is fixedly connected with a pin rod, one end of the connecting rod extends to the second link pin shaft sleeve so as to prevent the pin shaft from inserting into the first link pin shaft sleeve and to prevent the pin from moving into the link pin shaft sleeve, thereby prevent the first link pin from inserting into the first link pin shaft sleeve, and placing the link pin plate, thereby preventing the link pin from the pin from moving, and placing the pin plate, and placing the link pin plate, and placing the first link pin plate, and placing the link pin plate, and the first link pin plate, and the link pin shaft from moving the first link pin shaft, ensuring the normal use of the device.

Preferably, the reciprocating mechanism includes a servo motor, the surface of the servo motor is fixedly connected with one side of the device box, one end of the output shaft of the servo motor runs through the device box and is fixedly connected with a second linkage spline shaft sleeve matched with the linkage spline shaft, the surface of the second linkage spline shaft sleeve is fixedly connected with a reciprocating rotating plate, one side of the reciprocating rotating plate is rotatably connected with a reciprocating sliding sleeve, a reciprocating slide rod is fixedly connected between the linkage mounting bar and the linkage sealing square pipe, the outer surface of the reciprocating slide rod is slidably connected with the inner surface of the reciprocating sliding sleeve, the servo motor provides power for reciprocating motion and overturning of the device, the reciprocating rotating plate is used for installing the reciprocating sliding sleeve, the reciprocating sliding sleeve moves along the reciprocating slide rod when rotating, the reciprocating slide rod moves to the rear part of the linkage spline shaft, the linkage spline shaft is inserted into the second linkage spline shaft sleeve, the linkage spline shaft is prevented from being touched when the reciprocating slide rod moves, normal use of the device is guaranteed, a press switch is installed on the front and the back of the connecting frame, and when the device is not operated properly, the reciprocating slide rod extrudes the press the switch, the servo motor is closed, the device is prevented from being blocked, and the service life of the device is prolonged.

Preferably, circulation mechanism is including soaking the frame, the bottom fixedly connected with bin of device incasement surface, the top intercommunication of bin has the circulating pipe, the one end of circulating pipe and the bottom intercommunication of soaking the frame soak the frame and be used for soaking detection filter paper, and the bin is used for storing solution, the surface of circulating pipe is provided with solenoid electric valve, the top fixedly connected with circulating water pump of bin, circulating water pump's the end intercommunication of intaking has the inlet tube, the one end of inlet tube runs through the bin and extends to the inside of bin, and solenoid electric valve is used for the circulation of control cycle pipe, when drying, deposits solution to the bin in, when the next time is experimental, starts circulating water pump and carries the solution in with the bin to soak the frame in to save a quantitative resource, circulating water pump's outlet end intercommunication has the outlet pipe, the one end of outlet pipe runs through and soaks the frame and extends to the inside of soaking the frame, the interior fixed surface who soaks the frame is connected with filter screen, and the filter screen is used for filtering impurity, will detect filter paper simultaneously and filter to the top of filter screen, and conveniently dry to the detection filter screen.

Compared with the prior art, the invention has the beneficial effects that:

1. through the arrangement of the reciprocating mechanism, the sterilizing lamp can reciprocate, so that the sterilization of the detection filter paper is more uniform, and meanwhile, the electric heating plate can reciprocate, so that the drying is more uniform, the sterilization and the drying are uniform, the detection effect of the device is increased, and meanwhile, the linkage sealing square tube reciprocates, so that the cleaning of the filter screen by the cleaning spray head is facilitated;

2. through link gear's setting, the messenger places the board and can overturn to in the messenger placed the automatic soaking frame that falls into of detection filter paper on the board, reduce labour's use, link gear uses with reciprocating mechanism cooperation simultaneously, reduces the use of motor, the manufacturing cost of reduction device, facilitate promotion.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention.

FIG. 2 is a schematic view of the internal structure of the apparatus case of the present invention.

FIG. 3 is a schematic view of the reciprocating mechanism of the present invention.

Fig. 4 is a schematic structural view of the linkage mechanism of the present invention.

FIG. 5 is a schematic view of the linkage support mounting plate of the present invention.

Fig. 6 is a schematic structural view of the mounting block of the present invention.

FIG. 7 is a schematic structural view of the linkage sealing square tube of the present invention.

Fig. 8 is a schematic structural view of the filter screen of the present invention.

In the figure: 1. a device case; 2. placing the plate; 3. detecting the filter paper; 4. a turning shaft; 5. turning over the spline shaft; 6. mounting blocks; 7. a spline groove; 8. a magnet plate; 9. a first chute plate; 10. a linkage mounting bar; 11. a sterilizing lamp; 12. a second chute plate; 13. sealing the square tube in a linkage manner; 14. an electrical heating plate; 15. a water tank; 16. cleaning the water pump; 17. a flexible hose; 18. cleaning the sprinkler head; 120. a linkage mechanism; 121. the linkage support mounting plate; 122. a first linkage spline shaft sleeve; 123. a first bevel gear; 124. a second bevel gear; 125. a linkage spline shaft; 126. a connecting frame; 127. a telescopic rod; 128. a pin plate; 129. a pin rod; 130. a reciprocating mechanism; 131. a servo motor; 132. a second linkage spline shaft sleeve; 133. a reciprocating rotation plate; 134. a reciprocating sliding sleeve; 135. a reciprocating slide bar; 140. a circulating mechanism; 141. soaking the frame; 142. a storage tank; 143. a circulation pipe; 144. an electromagnetic control valve; 145. a water circulating pump; 146. a water inlet pipe; 147. a water outlet pipe; 148. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As shown in figures 1-8, the invention provides a method and a device for detecting coliform group in food, comprising a device box 1 and a placing plate 2 arranged inside the device box 1, wherein the front surface of the device box 1 is provided with two sealing doors, one sealing door is used for taking out the placing plate 2 and placing detection filter paper 3, the other sealing door is used for placing the dried detection filter paper 3, the top of the placing plate 2 is provided with the detection filter paper 3, the back surface of the inner surface of the device box 1 is rotationally connected with a turnover shaft 4, one end of the turnover spline shaft 5 is fixedly connected with a turnover spline shaft 5, the bottom of the placing plate 2 is fixedly connected with a mounting block 6, the front surface of the mounting block 6 is provided with a spline groove 7 matched with the turnover spline shaft 5, the outer surface of the turnover shaft 4 is sleeved and fixedly connected with a magnet plate 8, the magnet plate 8 is used for adsorbing the mounting block 6 and increasing the stability of the placing plate 2, the inner surface of the device box 1 is fixedly connected with a first sliding chute plate 9 above the placing plate 2, the inner surface of the first sliding chute plate 9 is connected with a linkage mounting strip 10 in a sliding way through a sliding block, the bottom of the linkage mounting strip 10 is fixedly connected with a sterilizing lamp 11, the inner surface of the device box 1 is fixedly connected with a second sliding chute plate 12 below the placing plate 2, the inner surface of the second sliding chute plate 12 is connected with a linkage sealing square tube 13 in a sliding way through a sliding block, the bottom of the linkage sealing square tube 13 is fixedly connected with an electric heating plate 14, a reciprocating mechanism 130 is arranged between the linkage sealing square tube 13 and the linkage mounting strip 10, the top of the second sliding chute plate 12 is provided with a linkage mechanism 120, the bottom of the inner cavity of the device box 1 is provided with a circulating mechanism 140, the sterilizing lamp 11 can reciprocate through the arrangement of the reciprocating mechanism 130, thereby sterilizing the detecting filter paper 3 more uniformly and simultaneously enabling the electric heating plate 14 to reciprocate, thereby make the stoving more even, make linkage sealing side pipe 13 reciprocating motion simultaneously, conveniently clear up sprinkler bead 18 and clear up filter screen 148, the integrated design, easy operation is convenient, and detection effect is good.

The linkage mechanism 120 comprises a linkage support mounting plate 121, the bottom of the linkage support mounting plate 121 is fixedly connected with the top of the second chute plate 12, the top of the linkage support mounting plate 121 is rotatably connected with a first linkage spline shaft sleeve 122 through a bearing, and one end of the first linkage spline shaft sleeve 122 is fixedly connected with a first bevel gear 123.

Through adopting above-mentioned technical scheme, linkage support mounting panel 121 is used for installing first linkage spline axle sleeve 122 and telescopic link 127, and first bevel gear 123 is used for cooperating second bevel gear 124 to use to can drive trip shaft 4 and rotate.

The outer surface of the turning shaft 4 is sleeved and fixedly connected with a second bevel gear 124 matched with the first bevel gear 123, the inner surface of the first linkage spline shaft sleeve 122 is connected with a linkage spline shaft 125 in a sliding manner, the outer surface of the linkage spline shaft 125 is rotatably connected with a connecting frame 126 through a bearing, and one side of the connecting frame 126 is fixedly connected with a telescopic rod 127.

Through adopting above-mentioned technical scheme, linkage spline shaft 125 is used for cooperating second linkage spline shaft sleeve 132 to use, makes second linkage spline shaft sleeve 132 can drive linkage spline shaft 125 and rotates to accomplish the transmission, guarantee the normal use of device.

One end of the telescopic rod 127 is fixedly connected with one side of the linkage support mounting plate 121, the outer surface of the first linkage spline shaft sleeve 122 is fixedly connected with a pin plate 128, one side of the connecting frame 126 is fixedly connected with a pin rod 129, and one end of the pin rod 129 penetrates through the pin plate 128 and extends to the outside of the pin plate 128.

Through adopting above-mentioned technical scheme, telescopic link 127 is used for driving linkage integral key shaft 125 and removes, thereby make linkage integral key shaft 125 insert second linkage integral key axle sleeve 132, sell board 128 is used for cooperating pin 129 to use, pin 129 inserts in selling board 128, thereby it is spacing to first linkage integral key axle sleeve 122, and then can spacing trip shaft 4, thereby prevent to place board 2 and rotate at will, guarantee to place the stability of board 2, when linkage integral key shaft 125 inserts second linkage integral key axle sleeve 132, pin 129 breaks away from round pin board 128, guarantee the normal use of device.

The reciprocating mechanism 130 comprises a servo motor 131, the outer surface of the servo motor 131 is fixedly connected with one side of the device box 1, one end of an output shaft of the servo motor 131 penetrates through the device box 1 and is fixedly connected with a second linkage spline shaft sleeve 132 matched with the linkage spline shaft 125, the outer surface of the second linkage spline shaft sleeve 132 is fixedly connected with a reciprocating rotating plate 133, one side of the reciprocating rotating plate 133 is rotatably connected with a reciprocating sliding sleeve 134, a reciprocating slide rod 135 is fixedly connected between the linkage mounting bar 10 and the linkage sealing square pipe 13, and the outer surface of the reciprocating slide rod 135 is slidably connected with the inner surface of the reciprocating sliding sleeve 134.

By adopting the technical scheme, the servo motor 131 provides power for the reciprocating motion and the overturning of the device, the reciprocating rotating plate 133 is used for installing the reciprocating sliding sleeve 134, when the reciprocating sliding sleeve 134 rotates, the reciprocating sliding sleeve moves along the reciprocating sliding rod 135 and pushes the reciprocating sliding rod 135 to move, when the reciprocating sliding rod 135 moves to the rear part of the linkage spline shaft 125, the linkage spline shaft 125 is inserted into the second linkage spline shaft sleeve 132, so that the linkage spline shaft 125 is prevented from being touched when the reciprocating sliding rod 135 moves, the normal use of the device is ensured, the front surface and the back surface of the connecting frame 126 are both provided with the press switches, when the operation is not correct, the reciprocating sliding rod 135 extrudes the press switches, the servo motor 131 is closed, the blocking of the device is prevented, and the service life of the device is prolonged.

The circulation mechanism 140 includes a soaking frame 141, a storage tank 142 is fixedly connected to the bottom of the inner surface of the apparatus case 1, a circulation pipe 143 is connected to the top of the storage tank 142, and one end of the circulation pipe 143 is connected to the bottom of the soaking frame 141.

By adopting the above technical scheme, the soaking frame 141 is used for soaking the detection filter paper 3, and the storage tank 142 is used for storing the solution.

An electromagnetic control valve 144 is arranged on the outer surface of the circulating pipe 143, a circulating water pump 145 is fixedly connected to the top of the storage tank 142, a water inlet pipe 146 is communicated with the water inlet end of the circulating water pump 145, and one end of the water inlet pipe 146 penetrates through the storage tank 142 and extends into the storage tank 142.

By adopting the above technical scheme, the electromagnetic control valve 144 is used for controlling the circulation of the circulating pipe 143, and when drying, the solution is stored in the storage tank 142, and when the next test is performed, the circulating water pump 145 is started to convey the solution in the storage tank 142 to the soaking frame 141, thereby saving a certain amount of resources.

The water outlet end of the circulating water pump 145 is communicated with a water outlet pipe 147, one end of the water outlet pipe 147 penetrates through the soaking frame 141 and extends into the soaking frame 141, and the inner surface of the soaking frame 141 is fixedly connected with a filter screen 148.

Through adopting above-mentioned technical scheme, filter screen 148 is used for filtering impurity, will detect filter paper 3 simultaneously and filter to filter screen 148's top, conveniently dries to detecting filter paper 3.

The top fixedly connected with water tank 15 of 1 internal surface of device case, the internal surface fixedly connected with of water tank 15 clearance water pump 16, the play water end intercommunication of clearance water pump 16 has bellows 17, the one end of bellows 17 run through water tank 15 and with the top intercommunication of linkage sealed side's pipe 13, the front intercommunication of linkage sealed side's pipe 13 has the clearance sprinkler bead 18, the quantity of clearance sprinkler bead 18 is provided with a plurality of.

Through adopting above-mentioned technical scheme, water tank 15 is used for storing clear water, and clearance water pump 16 provides power for the 18 water sprays of clearance sprinkler bead, and flexible hose 17 makes linkage sealing side's pipe 13 can reciprocating motion, guarantees the normal use of device.

The working principle is as follows: pulling the placing plate 2 to drive the mounting block 6 to be far away from the magnet plate 8, moving the mounting block 6 along the turnover spline shaft 5, thereby moving the placing plate 2 out of the device box 1, placing the detection filter paper 3 on the top of the placing plate 2, similarly, placing the placing plate 2 into the device box 1, starting the servo motor 131 to drive the second linkage spline shaft sleeve 132 to rotate the reciprocating rotating plate 133, driving the reciprocating sliding sleeve 134 to rotate by the reciprocating rotating plate 133, driving the reciprocating sliding sleeve 134 to move by the reciprocating sliding sleeve 134, sliding the reciprocating sliding sleeve 134 along the reciprocating sliding rod 135, driving the linkage mounting bar 10 and the linkage sealing square pipe 13 to move by the reciprocating sliding rod 135, driving the sterilization lamp 11 to move along the first sliding chute plate 9 by the linkage mounting bar 10, starting the sterilization lamp 11 to sterilize the detection filter paper 3, starting the telescopic rod 127 to drive the connecting frame 126 to move the linkage spline shaft 125 along the first linkage spline shaft sleeve 122, inserting the linkage spline shaft 125 into the second linkage spline shaft sleeve 132, meanwhile, the connecting frame 126 drives the pin rod 129 to be far away from the pin plate 128, so that the limit of the first linkage spline shaft sleeve 122 is relieved, the servo motor 131 is started to drive the second linkage spline shaft sleeve 132 to enable the linkage spline shaft 125 to rotate, the linkage spline shaft 125 drives the first linkage spline shaft sleeve 122 to enable the first bevel gear 123 to rotate, the first bevel gear 123 drives the second bevel gear 124 to enable the turnover shaft 4 to rotate, the turnover shaft 4 drives the turnover spline shaft 5 to enable the mounting block 6 to rotate, the mounting block 6 drives the placing plate 2 to rotate, after the placing plate 2 is turned over for 90 degrees, the detection filter paper 3 falls off from the placing plate 2 due to gravity, the detection filter paper 3 falls into the soaking frame 141 below the placing plate 2, the detection telescopic rod 3 is soaked by the solution in the soaking frame 141, the servo motor 131 is controlled to rotate reversely to reset the placing plate 2, and the linkage spline shaft 125 is far away from the second linkage spline shaft sleeve 132 due to the contraction of the 127, opening an electromagnetic control valve 144, enabling the solution in the soaking frame 141 to enter the storage tank 142 through a circulating pipe 143, according to the second step, starting the servo motor 131 to enable the linkage sealing square pipe 13 to move, enabling the linkage sealing square pipe 13 to drive the electric heating plate 14 to move along the second chute plate 12, starting the electric heating plate 14 to dry the detection filter paper 3 on the filter screen 148, after drying is finished, dropping the diluted detection raw material on the detection filter paper 3 to finish detection, after the detection filter paper 3 which finishes detection is taken out, according to the fourth step, starting the servo motor 131 to enable the linkage sealing square pipe 13 to move along the second chute plate 12, starting the cleaning water pump 16 to spray the clean water in the water tank 15 out through the telescopic hose 17, the linkage sealing square pipe 13 and the cleaning water spray head 18 sequentially, and cleaning the filter screen 148 and the soaking frame 141.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The utility model provides a detection device of coliform crowd in food, includes device case (1) and sets up placing board (2) inside device case (1), its characterized in that: the device is characterized in that detection filter paper (3) is arranged at the top of the placing plate (2), a turnover shaft (4) is rotatably connected to the back of the inner surface of the device box (1), one end of the turnover spline shaft (5) is fixedly connected with a turnover spline shaft (5), a mounting block (6) is fixedly connected to the bottom of the placing plate (2), a spline groove (7) matched with the turnover spline shaft (5) is formed in the front of the mounting block (6), a magnet plate (8) is fixedly connected to the outer surface of the turnover shaft (4) in a sleeved mode, a first chute plate (9) is fixedly connected to the upper portion of the placing plate (2) and to the inner surface of the device box (1), a linkage mounting strip (10) is slidably connected to the inner surface of the first chute plate (9) through a slider, a sterilization lamp (11) is fixedly connected to the bottom of the linkage mounting strip (10), a second chute plate (12) is fixedly connected to the lower portion of the placing plate (2) and to the inner surface of the device box (1), a linkage sealing square tube (13) is slidably connected to the inner surface of the second chute plate (12), a linkage sealing square tube (13) is fixedly connected to the top of the linkage sealing square tube (120), a reciprocating mechanism is arranged between the reciprocating mechanism (130) and the heating plate (13), the bottom of the inner cavity of the device box (1) is provided with a circulating mechanism (140).

2. The device for detecting coliform group in food according to claim 1, wherein said linkage mechanism (120) comprises a linkage support mounting plate (121), the bottom of said linkage support mounting plate (121) is fixedly connected with the top of said second chute plate (12), the top of said linkage support mounting plate (121) is rotatably connected with a first linkage spline shaft sleeve (122) through a bearing, and one end of said first linkage spline shaft sleeve (122) is fixedly connected with a first bevel gear (123).

3. The device for detecting coliform group in food according to claim 2, wherein the second bevel gear (124) matched with the first bevel gear (123) is sleeved and fixedly connected on the outer surface of the turning shaft (4), the inner surface of the first linkage spline shaft sleeve (122) is slidably connected with a linkage spline shaft (125), the outer surface of the linkage spline shaft (125) is rotatably connected with a connecting frame (126) through a bearing, and one side of the connecting frame (126) is fixedly connected with an expansion link (127).

4. The device for detecting coliform group in food according to claim 3, wherein one end of said telescopic rod (127) is fixedly connected with one side of said linkage supporting mounting plate (121), a pin plate (128) is fixedly connected with the outer surface of said first linkage spline shaft sleeve (122), a pin rod (129) is fixedly connected with one side of said connecting frame (126), and one end of said pin rod (129) penetrates through said pin plate (128) and extends to the outside of said pin plate (128).

5. The device for detecting coliform group in food according to claim 3, wherein said reciprocating mechanism (130) comprises a servo motor (131), the outer surface of said servo motor (131) is fixedly connected with one side of said device case (1), one end of the output shaft of said servo motor (131) penetrates said device case (1) and is fixedly connected with a second linkage spline shaft sleeve (132) matched with said linkage spline shaft (125), the outer surface of said second linkage spline shaft sleeve (132) is fixedly connected with a reciprocating rotation plate (133), one side of said reciprocating rotation plate (133) is rotatably connected with a reciprocating sliding sleeve (134), a reciprocating slide rod (135) is fixedly connected between said linkage mounting bar (10) and said linkage sealing square tube (13), and the outer surface of said reciprocating slide rod (135) is slidably connected with the inner surface of said reciprocating sliding sleeve (134).

6. The device for detecting coliform groups in food according to claim 1, wherein said circulating means (140) comprises a soaking frame (141), a storage tank (142) is fixedly connected to the bottom of the inner surface of said device case (1), the top of said storage tank (142) is connected to a circulating tube (143), and one end of said circulating tube (143) is connected to the bottom of said soaking frame (141).

7. The device for detecting coliform groups in food according to claim 6, wherein an electromagnetic control valve (144) is disposed on an outer surface of said circulating tube (143), a circulating water pump (145) is fixedly connected to a top of said storage tank (142), a water inlet end of said circulating water pump (145) is connected to a water inlet tube (146), and one end of said water inlet tube (146) penetrates through said storage tank (142) and extends into the storage tank (142).

8. The device for detecting coliform group in food according to claim 7, wherein the water outlet end of said circulating water pump (145) is connected to a water outlet pipe (147), one end of said water outlet pipe (147) penetrates through the soaking frame (141) and extends to the interior of the soaking frame (141), and the inner surface of said soaking frame (141) is fixedly connected to a filter screen (148).

9. The device for detecting coliform group in food according to claim 1, characterized in that a water tank (15) is fixedly connected to the top of the inner surface of the device box (1), a cleaning water pump (16) is fixedly connected to the inner surface of the water tank (15), the water outlet end of the cleaning water pump (16) is communicated with a flexible hose (17), one end of the flexible hose (17) penetrates through the water tank (15) and is communicated with the top of the linkage sealing square pipe (13), the front of the linkage sealing square pipe (13) is communicated with cleaning water spray heads (18), and the number of the cleaning water spray heads (18) is provided.

10. The method for detecting coliform bacteria in a food according to claim 1, comprising the steps of:

the method comprises the following steps: placing test paper, pulling the placing plate (2) to drive the mounting block (6) to be away from the magnet plate (8), moving the mounting block (6) along the overturning spline shaft (5), so that the placing plate (2) is moved out of the device box (1), placing the detection filter paper (3) at the top of the placing plate (2), and similarly, placing the placing plate (2) into the device box (1);

step two: sterilizing, wherein a servo motor (131) is started to drive a second linkage spline shaft sleeve (132) to enable a reciprocating rotating plate (133) to rotate, the reciprocating rotating plate (133) drives a reciprocating sliding sleeve (134) to rotate, the reciprocating sliding sleeve (134) rotates to drive a reciprocating sliding rod (135) to move, meanwhile, the reciprocating sliding sleeve (134) slides along the reciprocating sliding rod (135), the reciprocating sliding rod (135) drives a linkage mounting strip (10) and a linkage sealing square tube (13) to move, the linkage mounting strip (10) drives a sterilizing lamp (11) to move along a first sliding groove plate (9), and the sterilizing lamp (11) is started to sterilize the detection filter paper (3);

step three: soaking, starting the telescopic rod (127) to drive the connecting frame (126) to enable the linkage spline shaft (125) to move along the first linkage spline shaft sleeve (122), inserting the linkage spline shaft (125) into the second linkage spline shaft sleeve (132), meanwhile, the connecting frame (126) drives the pin rod (129) to be far away from the pin plate (128), thereby relieving the limit of the first linkage spline shaft sleeve (122), starting the servo motor (131) to drive the second linkage spline shaft sleeve (132) to enable the linkage spline shaft (125) to rotate, driving the first linkage spline shaft sleeve (122) to enable the first bevel gear (123) to rotate by the linkage spline shaft (125), driving the second bevel gear (124) to enable the turnover shaft (4) to rotate by the first bevel gear (123), driving the turnover spline shaft (5) by the turnover shaft (4) to enable the installation block (6) to rotate, driving the placing plate (2) to rotate by the installation block (6), and after the placing plate (2) is turned over for 90 degrees, due to gravity, the detection filter paper (3) falls off from the placing plate (2), the detection filter paper (3) falls into a soaking frame (141) below the placing plate (2), a solution in the soaking frame (141) soaks the detection filter paper (3), the servo motor (131) is controlled to rotate reversely to reset the placing plate (2), and the telescopic rod (127) is controlled to contract to enable the linkage spline shaft (125) to be far away from the second linkage spline shaft sleeve (132);

step four: drying, namely opening an electromagnetic control valve (144), enabling the solution in the soaking frame (141) to enter a storage tank (142) through a circulating pipe (143), starting a servo motor (131) to enable a linkage sealing square pipe (13) to move according to the step two, driving an electric heating plate (14) to move along a second sliding chute plate (12) through the linkage sealing square pipe (13), starting the electric heating plate (14) to dry the detection filter paper (3) on the filter screen (148), and dropping the diluted detection original liquid on the detection filter paper (3) after drying is finished, so that detection is finished;

step five: and (3) cleaning, namely after the detection filter paper (3) which is detected is taken out, according to the fourth step, starting the servo motor (131) to enable the linkage sealing square tube (13) to move along the second sliding chute plate (12), and starting the cleaning water pump (16) to eject the clean water in the water tank (15) through the telescopic hose (17), the linkage sealing square tube (13) and the cleaning water spray head (18) in sequence, so that the filter screen (148) and the soaking frame (141) are cleaned.

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