Liquid food safety sampling detection equipment

Abstract

The invention discloses liquid food safety sampling detection equipment, and mainly relates to the technical field of liquid sampling detection, the liquid food safety sampling detection equipment comprises a shell, the bottom of the shell is fixedly connected with a sampling taper pipe, the shell is internally provided with a T-shaped pipe, the T-shaped pipe is internally provided with three cavities, and the three cavities are internally and slidably provided with two transverse pistons and a vertical piston respectively; the three cavities of the T-shaped pipe are each connected with a sampling pipe, the tail end of each sampling pipe forms three sampling positions outside the sampling taper pipe, the three cavities of the T-shaped pipe correspond to the three containing grooves of the heat preservation box in a one-to-one mode, a water tank is arranged on one side of the heat preservation box, and each cleaning water pipe is communicated with the corresponding sampling pipe. The device is further provided with three pipelines with electromagnetic valves and a sealing cover, three test tubes are arranged below the sealing cover, and detectors are arranged on the two sides of each test tube. According to the invention, automatic sampling detection can be realized, and convenient detection can be realized.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of liquid sampling and detection, and particularly relates to a liquid food safety sampling and detection device. Background Art

[0002] In today's life, various beverages can be seen everywhere. However, with the development of technology, many beverages contain various chemical substances. The levels of these chemical substances can have a great impact on consumers' health. Therefore, a device is needed to detect whether the chemical component content in these beverages exceeds the standard. There are also some food safety detection devices on the market that use spectral means for detection. However, these devices all rely on manual sampling. The samples are put into test tubes and then detected. For liquids at different depths, sampling tools are also needed, and they cannot be detected anytime and anywhere. Generally, they are large detection machines, and the detection equipment cannot be cleaned after detection. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the above problems, the present invention provides a liquid food safety sampling and detection device that can automatically sample in layers and can also be used for portable detection.

[0005] (2) Technical Solutions

[0006] To solve the above technical problems, the present invention provides a liquid food safety sampling and detection device, which includes a housing. A sampling conical tube is fixedly connected to the bottom of the housing. A T-shaped tube is fixedly installed inside the housing. The horizontal section of the T-shaped tube has two chambers on the left and right. A transverse piston is slidably installed in each of the two chambers. The vertical section of the T-shaped tube has another chamber, and a vertical piston is slidably arranged in the chamber. A sampling tube is connected to each of the three chambers of the T-shaped tube. The end of each sampling tube extends into the sampling conical tube and is exposed outside the sampling conical tube, forming three sampling positions at different heights. A heat preservation box is fixedly arranged below the T-shaped tube. Three accommodation grooves are arranged inside the heat preservation box. The three chambers of the T-shaped tube correspond to the three accommodation grooves of the heat preservation box one by one. Each chamber and each accommodation groove are respectively communicated by a small connecting tube. A water tank is arranged on one side of the heat preservation box. The water tank is provided with three cleaning water pipes, and each cleaning water pipe is communicated with each sampling tube. The three accommodation grooves respectively extend to the lower part of a sealing cover through a pipeline with a solenoid valve. Three test tubes are slidably arranged below the sealing cover, and detectors are arranged on both sides of the test tubes.

[0007] Further, two horizontal pistons are driven by two sets of connecting rod assemblies. The two sets of connecting rod assemblies have the same structure and are centrosymmetric. The connecting rod assembly includes a cross bar, which is rotatably connected to the horizontal piston and also rotatably connected to a long connecting rod. The central position of the long connecting rod is rotatably installed on the T-shaped pipe, and the end of the long connecting rod is rotatably connected to the crank end rod. The crank end rod is rotatably arranged on the double-folded crank handle, and the double-folded crank handle is fixedly connected to the output shaft of the main motor. The main motor is fixedly arranged on the housing.

[0008] Further, a vertical rod is also rotatably connected to the double-folded crank handle. The vertical rod is rotatably connected to the vertical piston. After the double-folded crank handle rotates, the two horizontal pistons and the vertical piston work simultaneously, and three sampling tubes are used to respectively suck liquid into three accommodating grooves. The liquid in the accommodating grooves enters the test tubes for sampling.

[0009] Further, the three sampling tubes are respectively a far sampling tube, a near sampling tube, and a middle sampling tube. One end of the middle sampling tube is fixedly connected to the chamber of the vertical section of the T-shaped pipe, and the other end extends below the sampling cone tube to form the lowest sampling point; one end of the near sampling tube is connected to the chamber of the T-shaped pipe near the middle sampling tube, and the other end extends below the sampling cone tube to form the middle sampling point; one end of the far sampling tube is connected to the remaining chamber, and the other end extends below the sampling cone tube to form the highest sampling point.

[0010] Further, the accommodating grooves include a near heat preservation groove, a middle heat preservation groove, and a far heat preservation groove. The middle heat preservation groove is communicated with the chamber of the vertical section of the T-shaped pipe by a small connecting pipe. The chamber of the T-shaped pipe near the middle sampling tube is communicated with the near heat preservation groove by another small connecting pipe. The remaining chamber of the T-shaped pipe is communicated with the far heat preservation groove by the last small connecting pipe.

[0011] Further, a front-end pipe is fixedly installed at the exposed end of each of the far sampling tube, the near sampling tube, and the middle sampling tube below the sampling cone tube. The front-end pipe is inclined, and a set of bottom check valves is arranged in each front-end pipe. The bottom check valve includes a check ball, and a bottom spring is fixedly connected to the check ball. The bottom spring is fixedly installed on the front-end pipe.

[0012] Further, a turnover pipe is fixedly connected to each of the far sampling tube, the near sampling tube, and the middle sampling tube. One end of the three cleaning water pipes is connected to the water tank, and the other ends are respectively fixedly connected to the three turnover pipes. A set of top check valves is arranged in each turnover pipe. The top check valve includes a top spring, and the top spring is fixedly installed on the turnover pipe. Another check ball is fixedly installed on the top spring, and the check ball on the top spring is close to the water tank.

[0013] Further, each test tube is detachably installed on the draw plate. The draw plate is slidably installed in the housing, and a waste water tank is also arranged below the draw plate. The detector is U-shaped and is arranged on both sides of the test tube.

[0014] The beneficial effects of the present invention compared with the prior art are as follows: 1. The present invention is provided with a housing and a T-shaped tube. The T-shaped tube forms three chambers, two of which are provided with horizontal pistons and the other is provided with a vertical piston. Two sets of connecting rod assemblies are also provided to drive the above three pistons to move for automatic sampling operation. It is small in size and convenient to carry, and can be detected anytime and anywhere; 2. Each of the three chambers of the T-shaped tube of the present invention is connected with a sampling tube, and the end of each sampling tube extends into the sampling cone tube and is exposed outside the sampling cone tube, forming three sampling positions with different heights, so as to be able to sample in layers and sample safely; 3. The present invention is provided with a heat preservation box, and three accommodating grooves are arranged in the heat preservation box. The three chambers of the T-shaped tube correspond to the three accommodating grooves of the heat preservation box one by one, so as to store the liquid, reduce the contact between the liquid to be detected and the outside world, make the liquid precipitate, and then carry out subsequent detection; 4. The present invention has the function of automatic cleaning. A water tank, three cleaning water pipes are provided, each cleaning water pipe is communicated with each sampling tube, an electromagnetic valve pipeline, a sealing cover, a detector are provided, and a pull-out plate is slidably arranged. A test tube is arranged on the pull-out plate. It can first detect the liquid. After the detection is completed, take away the pull-out plate, and use the water in the water tank to clean each sampling tube and the heat preservation box for the next use. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the back of the present invention.

[0017] Figure 3 It is a schematic diagram of the right side of the present invention.

[0018] Figure 4 It is a front view of the present invention.

[0019] Figure 5 It is Figure 4 The sectional view taken along line A-A in

[0020] Figure 6 It is Figure 4 The sectional view taken along line B-B in

[0021] Figure 7 It is a left view of the present invention.

[0022] Figure 8 It is Figure 7 The sectional view taken along line C-C in

[0023] Figure 9 It is Figure 7 The sectional view taken along line D-D in

[0024] Figure 10 It is a schematic diagram of the present invention with the housing hidden.

[0025] Figure 11 This is a schematic diagram of the first local angle of the present invention.

[0026] Figure 12 This is a schematic diagram of the second local angle of the present invention.

[0027] Figure 13 This is a schematic diagram of the third local angle of the present invention.

[0028] Reference numerals in the drawings: 1 - detection mechanism; 101 - housing; 102 - operation display screen; 103 - groove; 104 - water discharge pipe; 105 - sampling conical tube; 106 - water filling port; 107 - detector; 108 - pull-out plate; 109 - test tube; 110 - top spring; 111 - bottom spring; 112 - check valve ball; 113 - near insulation tank; 114 - middle insulation tank; 115 - far insulation tank; 116 - T-shaped pipe; 117 - horizontal piston; 118 - cross bar; 119 - long connecting rod; 120 - crank end rod; 121 - waste water tank; 122 - main motor; 123 - two-fold bent handle; 124 - vertical rod; 125 - vertical piston; 126 - small connecting pipe; 127 - far sampling pipe; 128 - near sampling pipe; 129 - incubator; 130 - turnover pipe; 131 - front end pipe; 132 - middle sampling pipe; 133 - cleaning water pipe; 134 - pipeline with solenoid valve; 135 - electromagnetic pump; 136 - sealing cover; 137 - exhaust pipe; 138 - water tank; 139 - upper heating plate; 140 - bottom heating plate. Detailed implementation manners

[0029] The present invention will be further described below in conjunction with specific embodiments. Here, the present invention is explained by means of schematic embodiments of the present invention, but it is not intended to limit the present invention.

[0030] Embodiment: As Figures 1-13 shown, a liquid food safety sampling and detection device includes a detection mechanism 1. The detection mechanism 1 includes a housing 101. A sampling conical tube 105 is fixedly connected to the bottom of the housing 101, and a T-shaped pipe 116 is fixedly installed in the housing 101.

[0031] The horizontal section of the T-shaped pipe 116 is provided with two chambers on the left and right. A horizontal piston 117 is slidably installed in each of the two chambers. The vertical section of the T-shaped pipe 116 is provided with another chamber, and a vertical piston 125 is slidably arranged in the chamber.

[0032] Two horizontal pistons 117 are driven by two sets of connecting rod assemblies. The two sets of connecting rod assemblies have the same structure and are centrosymmetric. The connecting rod assembly includes a cross bar 118, the cross bar 118 is rotatably connected to the horizontal piston 117, the cross bar 118 is rotatably connected to a long connecting rod 119, the central position of the long connecting rod 119 is rotatably installed on the support rod provided on the T-shaped pipe 116, the end of the long connecting rod 119 is rotatably connected to a crank end rod 120, the crank end rod 120 is rotatably arranged on two-fold bending cranks 123, and the two-fold bending cranks 123 are fixedly connected to the output shaft of the main motor 122. The main motor 122 is fixedly arranged on the housing 101.

[0033] A vertical rod 124 is also rotatably connected to the two-fold bending cranks 123. The vertical rod 124 is rotatably connected to a vertical piston 125. After the two-fold bending cranks 123 rotate, the two horizontal pistons 117 and the vertical piston 125 work simultaneously, and three sampling tubes are used to respectively suck liquids into three accommodating grooves. The liquids in the accommodating grooves enter the test tube 109 for sampling.

[0034] The three sampling tubes are respectively a far sampling tube 127, a near sampling tube 128, and an intermediate sampling tube 132. One end of the intermediate sampling tube 132 is fixedly connected to the chamber of the vertical section of the T-shaped pipe 116, and the other end extends to below the sampling cone tube 105 to form the lowest sampling point; one end of the near sampling tube 128 is connected to the chamber of the T-shaped pipe 116 close to the intermediate sampling tube 132, and the other end extends to below the sampling cone tube 105 to form the intermediate sampling point; one end of the far sampling tube 127 is connected to the remaining chamber, and the other end extends to below the sampling cone tube 105 to form the highest sampling point.

[0035] At the ends of the far sampling tube 127, the near sampling tube 128, and the intermediate sampling tube 132 exposed below the sampling cone tube 105, a front-end tube 131 is fixedly installed. The front-end tube 131 is inclined, the front end of the front-end tube 131 is conical, and the cone is the sampling port. The side surfaces of the front-end tube 131 are respectively communicated with each pipeline. A set of bottom check valves is arranged in each front-end tube 131. The bottom check valve includes a check ball 112. A bottom spring 111 is fixedly connected to the check ball 112, the bottom spring 111 is fixedly installed on the front-end tube 131, and the check ball 112 is arranged on the front side of the connection between the front-end tube 131 and each pipeline.

[0036] A heat preservation box 129 is fixedly arranged below the T-shaped pipe 116. A water tank 138 is arranged on one side of the heat preservation box 129, and three accommodating grooves are arranged on the heat preservation box 129.

[0037] The accommodation grooves include a near heat preservation groove 113, a middle heat preservation groove 114, and a far heat preservation groove 115. The middle heat preservation groove 114 is communicated with the chamber of the vertical section of the T-shaped pipe 116 through a small connecting pipe 126. The chamber of the T-shaped pipe 116 near the middle sampling pipe 132 is communicated with the near heat preservation groove 113 through another small connecting pipe 126. The remaining chamber of the T-shaped pipe 116 is communicated with the far heat preservation groove 115 through the last small connecting pipe 126.

[0038] A solenoid valve pipeline 134 is respectively connected to the near heat preservation groove 113, the middle heat preservation groove 114, and the far heat preservation groove 115. Each solenoid valve pipeline 134 is connected to the sealing cover 136. Three test tubes 109 are respectively arranged below the sealing cover 136. Three exhaust pipes 137 are fixedly arranged on the sealing cover 136. The sealing cover 136 is used to prevent the liquid from pouring out and being polluted by air. The bent design of the exhaust pipe 137 is used for ventilation while preventing dust.

[0039] A turnover pipe 130 is fixedly connected to each of the far sampling pipe 127, the near sampling pipe 128, and the middle sampling pipe 132. One end of each of the three cleaning water pipes 133 is connected to the water tank 138, and the other end is fixedly connected to three different turnover pipes 130. A set of top check valves is arranged in each turnover pipe 130. The top check valve includes a top spring 110. The top spring 110 is fixedly installed on the turnover pipe 130. Another check ball 112 is fixedly installed on the top spring 110. The check ball 112 on the top spring 110 is close to the water tank 138.

[0040] An electromagnetic pump 135 is arranged on one side of each cleaning water pipe 133, which is used to control the water in the water tank 138 to be discharged from the cleaning water pipe 133 to realize the cleaning function.

[0041] A water adding pipe is arranged on the water tank 138. The water adding pipe extends to the outside of the housing 101 and is exposed at the position of the water adding port 106, which is convenient for manual water addition to the water tank 138.

[0042] Each test tube 109 is detachably installed on the draw-out plate 108. The disassembly method is groove clamping. The draw-out plate 108 is slidably installed in the housing 101. A waste water tank 121 is also arranged below the draw-out plate 108. The detector 107 is U-shaped and is arranged on both sides of the test tube 109.

[0043] A water discharge pipe 104 is arranged on the waste water tank 121. An operation display screen 102 is arranged on the housing 101. Operation buttons are arranged on the operation display screen 102. The operation display screen 102 is also used to display the detection results. Grooves 103 are arranged on both sides of the housing 101, and the grooves 103 on both sides are used for carrying by hand for easy detection.

[0044] A top heating plate 139 is fixedly installed below the incubator 129. The top heating plate 139 is a device in the prior art, composed of heating wires, which generates heat when powered on and can control the temperature. The bottom heating plate 140 uses the same technology as the top heating plate 139.

[0045] The working principle of the present invention: Hold the two grooves 103 of the present invention by hand, place the sampling cone tube 105 in the liquid to be detected, so that all three front tubes 131 are placed in the liquid, and then press the button on the operation display screen 102 to start the main motor 122. The main motor 122 drives the two-fold bent handle 123 to rotate. The two-fold bent handle 123 drives the crank end rod 120 and the vertical rod 124 to rotate, and the long connecting rod 119 will rotate, and finally drives the horizontal piston 117 and the vertical piston 125 to slide. The liquid enters from the front tube 131, pushes the check ball 112 to compress the bottom spring 111, and then the liquid goes up and reaches the three chambers of the T-shaped tube 116 from the far sampling tube 127, the near sampling tube 128, and the middle sampling tube 132 respectively.

[0046] After entering the three chambers, it enters the near insulation tank 113, the middle insulation tank 114, and the far insulation tank 115 through three small connecting pipes 126 for precipitation.

[0047] Then press the switch, and under the action of each solenoid valve pipeline 134, the three-layer liquid enters each test tube 109 from the near insulation tank 113, the middle insulation tank 114, and the far insulation tank 115 respectively. Then start the detector 107 to detect the three test tubes 109, and the detection results of different depths of the liquid can be obtained. The detection results are finally displayed on the outer shell 101.

[0048] After the detection is completed, pull the pull-out plate 108 to take out the pull-out plate 108 and the three test tubes 109. The three test tubes 109 can be discarded at a designated place. When the next detection is required, put new test tubes 109 in advance for use. Then start each cleaning water pipe 133, and the water in the water tank 138 enters the three sampling pipes from the three cleaning water pipes 133 respectively. After the water enters the cleaning water pipe 133, it squeezes the check ball 112 and the top spring 110, and the water goes directly down and reaches the front tube 131 respectively. When the water cannot be discharged at the front tube 131, the water will go up and enter the three chambers of the T-shaped tube 116 respectively, and then enter the near insulation tank 113, the middle insulation tank 114, and the far insulation tank 115 through the small connecting pipe 126. Then start the solenoid valve pipeline 134 to make the water pass through the sealing cover 136 and reach the waste water tank 121. The waste water tank 121 receives the waste water. Finally, open the valve on the water discharge pipe 104 to discharge the waste water.

[0049] Then use an auxiliary sterile cotton swab or other tools to squeeze the bottom spring 111 and the check ball 112 to discharge the excess waste water and can also clean the inlet of the front tube 131.

[0050] After the cleaning is completed, press the button to start the upper heating plate 139 and the bottom heating plate 140 to dry the incubator 129, the far sampling tube 127, the near sampling tube 128, and the middle sampling tube 132.

[0051] Where the present invention is not described is applicable to the prior art.

Claims

1. A sampling and detection device for the safety of liquid food, comprising a housing (101), characterized in that, A sampling cone tube (105) is fixedly connected to the bottom of the outer shell (101). A T-shaped tube (116) is fixedly installed inside the outer shell (101). The horizontal section of the T-shaped tube (116) has two chambers on the left and right. A transverse piston (117) is slidably installed in each of the two chambers. The vertical section of the T-shaped tube (116) has another chamber, and a vertical piston (125) is slidably arranged in the chamber. A sampling tube is connected to each of the three chambers of the T-shaped tube (116). The end of each sampling tube extends into the sampling cone tube (105) and is exposed outside the sampling cone tube (105), forming three sampling positions at different heights. A heat preservation box (129) is fixedly arranged below the T-shaped tube (116). Three receiving grooves are arranged inside the heat preservation box (129). The three chambers of the T-shaped tube (116) correspond to the three receiving grooves of the heat preservation box (129) one by one. Each chamber and each receiving groove are respectively communicated by a small connecting tube (126). A water tank (138) is arranged on one side of the heat preservation box (129). The water tank (138) is provided with three cleaning water pipes (133), and each cleaning water pipe (133) is communicated with each sampling tube; the three receiving grooves respectively extend to the lower part of the sealing cover (136) by a pipeline with an electromagnetic valve (134). Three test tubes (109) are slidably arranged below the sealing cover (136). Detectors (107) are arranged on both sides of the test tubes (109).

2. The liquid food safety sampling and testing device according to claim 1, characterized in that, The two transverse pistons (117) are driven by two sets of connecting rod assemblies. The two sets of connecting rod assemblies have the same structure and are centrosymmetric; the connecting rod assembly includes a cross bar (118). The cross bar (118) is rotatably connected to the transverse piston (117). The cross bar (118) is rotatably connected to the long connecting rod (119). The central position of the long connecting rod (119) is rotatably installed on the T-shaped tube (116). The end of the long connecting rod (119) is rotatably connected to the crank end rod (120). The crank end rod (120) is rotatably arranged on the two-fold bent crank (123). The two-fold bent crank (123) is fixedly connected to the output shaft of the main motor (122). The main motor (122) is fixedly arranged on the outer shell (101).

3. The sampling and testing device for the safety of liquid food according to claim 2, wherein, A vertical rod (124) is also rotatably connected to the two-fold bent crank (123). The vertical rod (124) is rotatably connected to the vertical piston (125). After the two-fold bent crank (123) rotates, the two transverse pistons (117) and the vertical piston (125) work simultaneously, and liquids are respectively sucked into the three receiving grooves through the three sampling tubes. The liquids in the receiving grooves enter the test tubes (109) for sampling.

4. The sampling and testing device for the safety of liquid food according to claim 3, characterized in that, The three sampling tubes are a far sampling tube (127), a near sampling tube (128), and a middle sampling tube (132). One end of the middle sampling tube (132) is fixedly connected to the chamber of the vertical section of the T-shaped tube (116), and the other end extends below the sampling cone tube (105) to form the lowest sampling point; one end of the near sampling tube (128) is connected to the chamber of the T-shaped tube (116) near the middle sampling tube (132), and the other end extends below the sampling cone tube (105) to form the middle sampling point; one end of the far sampling tube (127) is connected to the remaining chamber, and the other end extends below the sampling cone tube (105) to form the highest sampling point.

5. The sampling and testing device for the safety of liquid food according to claim 3, characterized in that, The accommodation grooves include a near heat preservation groove (113), a middle heat preservation groove (114), and a far heat preservation groove (115). The middle heat preservation groove (114) is communicated with the chamber of the vertical section of the T-shaped tube (116) by a small connecting pipe (126). The chamber of the T-shaped tube (116) near the middle sampling tube (132) is communicated with the near heat preservation groove (113) by another small connecting pipe (126). The remaining chamber of the T-shaped tube (116) is communicated with the far heat preservation groove (115) by the last small connecting pipe (126).

6. The liquid food safety sampling and testing device according to claim 4, characterized in that, At the exposed ends below the sampling cone tube (105) of the far sampling tube (127), the near sampling tube (128), and the middle sampling tube (132), a front-end tube (131) is fixedly installed. The front-end tube (131) is inclined. A set of bottom check valves is arranged in each front-end tube (131). The bottom check valve includes a check ball (112). A bottom spring (111) is fixedly connected to the check ball (112), and the bottom spring (111) is fixedly installed on the front-end tube (131).

7. The liquid food safety sampling and testing device according to claim 4, wherein, A turnover tube (130) is fixedly connected to each of the far sampling tube (127), the near sampling tube (128), and the middle sampling tube (132). One end of the three cleaning water pipes (133) is connected to the water tank (138), and the other ends are respectively fixedly connected to the three turnover tubes (130). A set of top check valves is arranged in each turnover tube (130). The top check valve includes a top spring (110). The top spring (110) is fixedly installed on the turnover tube (130). Another check ball (112) is fixedly installed on the top spring (110), and the check ball (112) on the top spring (110) is close to the water tank (138).

8. A liquid food safety sampling and testing device according to claim 1, characterized in that, Each test tube (109) is detachably installed on the draw-out plate (108). The draw-out plate (108) is slidably installed in the outer shell (101). A waste water tank (121) is also arranged below the draw-out plate (108). The detector (107) is U-shaped and is arranged on both sides of the test tube (109).

Images