Layered sampling equipment for food detection

Abstract

The utility model discloses stratified sampling equipment for food detection, which comprises a shell, the interior of the shell is fixedly connected with a mounting box, the interior of the mounting box is provided with a sampling mechanism, and one side of the shell is provided with a fixing assembly; wherein the sampling mechanism comprises screw rods which are located in the mounting box and rotationally connected, the corresponding ends of the screw rods are fixedly connected, square pistons are in threaded connection with the outer side walls of the screw rods, fixing boxes are fixedly connected between one side of the bottom end of the mounting box and the shell, and outlets and through holes are formed in the two ends of each fixing box; one side of the outlet is connected with a blocking block in a clamping manner, and one side of the interior of the fixing box is fixedly connected with a fixing pipe, so that the effect of stratified sampling of the liquid food is achieved, the effect of sampling the liquid food at different depths at the same time can be achieved, compared with a sampling mode in the prior art, the sampling is more convenient, and the sampling efficiency of workers is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of food sampling devices, in particular to a layered sampling device for food detection. Background Art

[0002] Food testing is to detect harmful substances in food according to specified indicators. Food must first be sampled before testing. Stratified sampling in food testing sampling is a method of sampling food at different depths.

[0003] Publication No. CN210923170U discloses a sampling device for food testing. The device is provided with a liquid storage cylinder and an extraction cylinder, so that when the liquid storage cylinder is threadedly connected to the bottom end of the extraction cylinder, the extraction head of the liquid storage cylinder is inserted into the liquid food and then the movable mechanism is pulled to extract the liquid food, so that the sampling of the liquid food is simple and convenient. Through the provision of a top cover and a cap, after the liquid food is extracted from the liquid storage cylinder, the cap is first installed on the bottom end of the liquid storage cylinder, and then the liquid storage cylinder is unscrewed from the extraction cylinder, and finally the top cover is installed on the top end of the liquid storage cylinder, so that the liquid food is stored in the liquid storage cylinder and a new liquid storage cylinder can be installed on the extraction cylinder to continue the sampling work. However, the patent still has the following problems in actual use:

[0004] The device is configured to threadably connect a liquid storage cylinder to the bottom end of an extraction cylinder, and then insert the extraction head of the liquid storage cylinder into liquid food and pull the movable mechanism to extract the liquid food, thereby making the sampling of liquid food simple and convenient. However, the device cannot achieve the effect of sampling liquid food at different depths at the same time, which makes the sampling of the device more cumbersome and brings inconvenience to the staff when using it.

[0005] A stratified sampling device for food testing is proposed to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a stratified sampling device for food testing, so as to solve the problem raised in the above-mentioned background technology that, when a liquid storage cylinder is threadedly connected to the bottom end of an extraction cylinder, the extraction head of the liquid storage cylinder is inserted into the liquid food and then a movable mechanism is pulled to extract the liquid food, so that the sampling of the liquid food is simple and convenient, but the device cannot achieve the effect of sampling liquid food at different depths at the same time, resulting in the device being more cumbersome when sampling, which brings inconvenience to the staff when using it.

[0007] To achieve the above object, the utility model provides the following technical solution: a layered sampling device for food testing, comprising a housing, a mounting box is fixedly connected to the interior of the housing, a sampling mechanism is arranged inside the mounting box, and a fixing component is arranged on one side of the housing;

[0008] Among them, the sampling mechanism includes screws that are rotatably connected inside the installation box, and the corresponding ends of the screws are fixedly connected, and a square piston is threadedly connected on the outer wall of the screw, and a fixing box is fixedly connected between one side of the bottom end of the installation box and the outer shell, and outlets and through holes are opened inside both ends of the fixing box, and a blocking block is snap-connected on one side of the outlet, and a fixing tube is fixedly connected to one side of the fixing box, and a sliding rod is slidably connected to the inside of the fixing tube, and a first telescopic spring is sleeved on the outer wall of the sliding rod, and the end of the sliding rod away from the fixing tube is fixedly connected to the blocking block.

[0009] Preferably, the fixing assembly includes an L-tube installed on one side of the shell, and the bottom end of the L-tube passes through the shell and the installation box with a clearance fit, and a limit plate is fixedly connected to the outer wall of the L-tube, and one end of the limit plate is snap-fitted to the shell, and the inside of the limit plate is fixedly connected to the limit box, and the two sides of the limit box are symmetrically fixedly connected with fixed frames, and the inside of the limit box is rotatably connected with a threaded rod, and a push block is threadedly connected on the outer wall of the threaded rod, and an extrusion rod is symmetrically slidably connected between the limit box and the inside of the fixed frame, and a pull plate is fixedly connected to one end of the extrusion rod away from the push block, and a second telescopic spring is symmetrically fixedly connected between the pull plate and the fixed frame, and an insert block is symmetrically fixedly connected to one side of the pull plate, and the insert block is snap-fitted and fixedly connected to the shell.

[0010] Preferably, one end of the blocking block is symmetrically fixedly connected to the limiting rod, and both sides of the fixed pipe are symmetrically fixedly connected to the limiting sleeve, and the limiting sleeve is sleeved on the outer side wall of the limiting rod for sliding connection.

[0011] Preferably, one side of the shell is inlaid with glass, the glass corresponds to the installation box, and one side of the glass is fixedly connected with a scale.

[0012] Preferably, a mounting groove is provided on one side of the limiting plate close to the threaded rod.

[0013] Preferably, the top end of the screw rod passes through the housing and is rotatably connected, and the top end of the screw rod is fixedly connected with a rotating block.

[0014] Preferably, the outer side wall of the push block is slidably connected to the interior of the limit box.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the stratified sampling device for food detection is specifically as follows: the square piston is driven to move upward by the rotation of the screw, and negative pressure is generated at the bottom of the installation box. At this time, the blocking block is separated from the outlet, thereby causing the first telescopic spring to contract, thereby causing the liquid food to enter the interior of the installation box through the fixed box, and the contractility of the first telescopic spring causes the blocking block to fit with the outlet again. Through the design of the multi-layer installation box, the effect of stratified sampling of liquid food is achieved, and the effect of simultaneous sampling of liquid foods of different depths can be achieved, which greatly improves the sampling efficiency of the staff, and the movement of the push block is driven by rotating the threaded rod, and the movement of the push block squeezes the extrusion rod, and the movement of the extrusion rod drives the movement of the pull plate. At this time, the second telescopic spring is stretched, thereby causing the plug block to be engaged and fixed with the inside of the shell, thereby achieving the effect of rapid installation and removal of the L-tube, which is convenient for subsequent inspection and maintenance.

[0016] 1. The square piston is driven upward by the rotation of the screw, and negative pressure is generated at the bottom of the installation box. At this time, the block is separated from the outlet, and the slide rod slides inside the fixed tube, thereby causing the first telescopic spring to contract, so that the liquid food passes through the fixed box and enters the installation box. The contractility of the first telescopic spring causes the block to fit with the outlet again. The design of the multi-layer installation box achieves the effect of layered sampling of liquid food, and can simultaneously sample liquid food of different depths. Compared with the sampling method in the prior art, it is more convenient, greatly improves the sampling efficiency of the staff, and brings convenience to the staff when using it. Through the design of the scale, it can be more intuitively observed that the liquid food inside the installation box belongs to the sample of the corresponding depth, which brings convenience to the staff when using it;

[0017] 2. By inserting the L-tube into the shell and the installation box, one end of the limit plate is engaged with the shell, and then the push block is driven to move by rotating the threaded rod. The movement of the push block squeezes the extrusion rod, and the movement of the extrusion rod drives the movement of the pull plate. At this time, the second telescopic spring stretches, so that the insertion block is engaged and fixed with the inside of the shell, thereby achieving the effect of quick installation and removal of the L-tube, facilitating subsequent inspection and maintenance, and bringing convenience to the staff when using it. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-section structure of the utility model;

[0019] Figure 2 It is a partial enlarged structural diagram of the sampling mechanism in the utility model;

[0020] Figure 3 It is a schematic diagram of the overall enlarged structure of the fixing box in the utility model;

[0021] Figure 4This is a schematic diagram of the overall enlarged structure of the limiting plate in the utility model;

[0022] Figure 5 It is a partial enlarged structural diagram of the fixing component in the utility model;

[0023] Figure 6 It is a schematic diagram of the overall structure of the utility model.

[0024] In the figure: 1. shell; 101. installation box; 2. sampling mechanism; 201. screw; 202. square piston; 203. fixed box; 204. outlet; 205. through hole; 206. blocking block; 207. fixed tube; 208. sliding rod; 209. first telescopic spring; 210. limiting rod; 211. limiting sleeve; 212. glass; 213. scale; 214. rotating block; 3. fixing assembly; 301. L tube; 302. limiting plate; 303. limiting box; 304. fixing frame; 305. threaded rod; 306. push block; 307. extrusion rod; 308. pull plate; 309. second telescopic spring; 310. plug block; 311. installation groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 The utility model provides a technical solution: a layered sampling device for food testing, comprising a housing 1, a mounting box 101 is fixedly connected to the inside of the housing 1, a sampling mechanism 2 is arranged inside the mounting box 101, and a fixing component 3 is arranged on one side of the housing 1;

[0027] Among them, the sampling mechanism 2 includes a screw 201 that is rotatably connected inside the installation box 101, and the corresponding end of the screw 201 is fixedly connected, and a square piston 202 is threadedly connected on the outer wall of the screw 201, and a fixing box 203 is fixedly connected between the bottom side of the installation box 101 and the shell 1, and both ends of the fixing box 203 are provided with outlets 204 and through holes 205, and a blocking block 206 is snap-connected on one side of the outlet 204, and a fixing tube 207 is fixedly connected to one side of the fixing box 203, and a sliding rod 208 is slidably connected to the inside of the fixing tube 207, and a first telescopic spring 209 is sleeved on the outer wall of the sliding rod 208, and one end of the sliding rod 208 away from the fixing tube 207 is fixedly connected to the blocking block 206, thereby achieving the effect of layered sampling of liquid food, and being able to simultaneously sample liquid food of different depths, which is more convenient than the sampling method in the prior art, greatly improves the sampling efficiency of the staff, and provides work The staff brings convenience when using it. One end of the blocking block 206 is symmetrically fixedly connected to the limiting rod 210, and the two sides of the fixed tube 207 are symmetrically fixedly connected to the limiting sleeve 211, and the limiting sleeve 211 is sleeved on the outer wall of the limiting rod 210 for sliding connection. The limiting rod 210 slides inside the limiting sleeve 211, so that the movement of the blocking block 206 is more stable. One side of the shell 1 is inlaid with glass 212, and the glass 212 corresponds to the installation box 101, and one side of the glass 212 is fixedly connected with a scale 213. The sampling stock inside the installation box 101 can be observed through the glass 212. Through the design of the scale 213, it is possible to more intuitively observe that the liquid food inside the installation box 101 belongs to the sample of the corresponding depth, which brings convenience to the staff when using it. The top end of the screw rod 201 passes through the shell 1 for rotation connection, and the top end of the screw rod 201 is fixedly connected with a rotating block 214. Through the design of the rotating block 214, it is convenient for the staff to rotate the screw 201.

[0028] The fixing assembly 3 includes an L-tube 301 which is installed on one side of the shell 1, and the bottom end of the L-tube 301 passes through the shell 1 and the installation box 101 with a clearance fit, and a limiting plate 302 is fixedly connected to the outer wall of the L-tube 301, and one end of the limiting plate 302 is snap-connected to the shell 1, and the inside of the limiting plate 302 is fixedly connected to the limiting box 303, and the two sides of the limiting box 303 are symmetrically fixedly connected to the fixing frame 304, and the inside of the limiting box 303 is rotatably connected to a threaded rod 305, and a push block 306 is threadedly connected to the outer wall of the threaded rod 305, and the outer wall of the push block 306 is slidably connected to the inside of the limiting box 303, and the limiting box 303 is symmetrically fixed to the fixing frame 304. The extrusion rod 307 is symmetrically slidably connected between the inner and outer surfaces of the extrusion rod 307, and the end of the extrusion rod 307 away from the push block 306 is fixedly connected with a pull plate 308, and the second telescopic spring 309 is symmetrically fixedly connected between the pull plate 308 and the fixed frame 304, and the plug block 310 is symmetrically fixedly connected to one side of the pull plate 308, and the plug block 310 is fixedly connected with the housing 1 by snapping, so as to achieve the effect of fast installation and removal of the L tube 301, which is convenient for subsequent inspection and maintenance, and brings convenience to the staff when using it. The side of the limit plate 302 close to the threaded rod 305 is provided with a mounting groove 311, and the design of the mounting groove 311 makes it convenient for the staff to rotate the threaded rod 305.

[0029] Working principle: Before using this food testing stratified sampling equipment, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 6As shown, by inserting the housing 1 into the liquid food, the staff rotates the rotating block 214 to drive the screw 201 to rotate, and the rotation of the screw 201 drives the square piston 202 to move upward, so that the air on the top of the installation box 101 is discharged through the L tube 301, and at this time, negative pressure is generated at the bottom of the installation box 101, so that suction is generated inside the fixed box 203, and the block 206 is separated from the outlet 204. At this time, the sliding rod 208 slides inside the fixed tube 207, so that the first telescopic spring 209 contracts, so that the liquid food passes through the fixed box 203 and enters the installation box 101. Then, by stopping the rotation of the screw 201, the shrinkage of the first telescopic spring 209 makes the block 206 fit with the outlet 204 again, so that the liquid food cannot enter The plurality of mounting boxes 101 are designed to be inserted into the installation box 101, so as to achieve the effect of layered sampling of liquid food, and the effect of simultaneous sampling of liquid food at different depths can be achieved. Compared with the sampling method in the prior art, it is more convenient, greatly improves the sampling efficiency of the staff, and brings convenience to the staff when using it. The limiting rod 210 slides inside the limiting sleeve 211, so that the movement of the blocking block 206 is more stable. The sampling stock inside the installation box 101 can be observed through the glass 212. Through the design of the scale 213, it is possible to more intuitively observe that the liquid food inside the installation box 101 belongs to the sample of the corresponding depth, which brings convenience to the staff when using it. Through the design of the rotating block 214, it is convenient for the staff to rotate the screw 201;

[0030] By inserting the L-tube 301 into the shell 1 and the installation box 101, one end of the limit plate 302 is engaged with the shell 1, and then the push block 306 is driven to move by rotating the threaded rod 305. The movement of the push block 306 squeezes the squeezing rod 307, and the movement of the squeezing rod 307 drives the movement of the pull plate 308. At this time, the second telescopic spring 309 is extended, so that the insertion block 310 is engaged and fixed with the inside of the shell 1, thereby achieving the effect of quickly installing and removing the L-tube 301, facilitating subsequent inspection and maintenance, and bringing convenience to the staff when using it.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stratified sampling device for food testing, comprising a housing (1), wherein a mounting box (101) is fixedly connected to the interior of the housing (1); It is characterized in that Also includes: A sampling mechanism (2) is arranged inside the installation box (101), and a fixing component (3) is arranged on one side of the housing (1); The sampling mechanism (2) comprises a screw (201) which is rotatably connected inside the installation box (101), and the corresponding end of the screw (201) is fixedly connected, and a square piston (202) is threadedly connected on the outer wall of the screw (201), and a fixing box (203) is fixedly connected between the bottom side of the installation box (101) and the outer shell (1), and both ends of the fixing box (203) are provided with an outlet (204) and a through hole (205), and a blocking block (206) is snap-connected on one side of the outlet (204), and a fixing tube (207) is fixedly connected on one side of the fixing box (203), and a sliding rod (208) is slidably connected inside the fixing tube (207), and a first telescopic spring (209) is sleeved on the outer wall of the sliding rod (208), and an end of the sliding rod (208) away from the fixing tube (207) is fixedly connected to the blocking block (206).

2. A stratified sampling device for food testing according to claim 1, characterized in that: The fixing assembly (3) comprises an L-tube (301) which is installed on one side of the housing (1), and the bottom end of the L-tube (301) penetrates the housing (1) and the installation box (101) to be loosely fitted, and a limiting plate (302) is fixedly connected to the outer wall of the L-tube (301), and one end of the limiting plate (302) is snap-connected to the housing (1), and the inside of the limiting plate (302) is fixedly connected to the limiting box (303), and the two sides of the limiting box (303) are symmetrically fixedly connected to the fixing frames (304), and the inside of the limiting box (303) is rotatably connected to the threaded rod (304). 05), and a push block (306) is threadedly connected on the outer wall of the threaded rod (305), and an extrusion rod (307) is symmetrically slidably connected between the limit box (303) and the inside of the fixed frame (304), and a pull plate (308) is fixedly connected to one end of the extrusion rod (307) away from the push block (306), and a second telescopic spring (309) is symmetrically fixedly connected between the pull plate (308) and the fixed frame (304), and an insertion block (310) is symmetrically fixedly connected to one side of the pull plate (308), and the insertion block (310) is fixedly connected to the housing (1) by snap-fitting.

3. A stratified sampling device for food testing according to claim 1, characterized in that: One end of the blocking block (206) is symmetrically fixedly connected to the limiting rod (210), and both sides of the fixed tube (207) are symmetrically fixedly connected to the limiting sleeve (211), and the limiting sleeve (211) is sleeved on the outer wall of the limiting rod (210) for sliding connection.

4. A stratified sampling device for food testing according to claim 1, characterized in that: One side of the housing (1) is inlaid with glass (212), the glass (212) corresponds to the installation box (101), and one side of the glass (212) is fixedly connected with a scale (213).

5. A stratified sampling device for food testing according to claim 2, characterized in that: A mounting groove (311) is formed on one side of the limiting plate (302) close to the threaded rod (305).

6. The stratified sampling device for food testing according to claim 1, characterized in that: The top end of the screw rod (201) passes through the housing (1) for rotational connection, and the top end of the screw rod (201) is fixedly connected to a rotation block (214).

7. A stratified sampling device for food testing according to claim 2, characterized in that: The outer side wall of the push block (306) is slidably connected to the interior of the limit box (303).

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