Special sample preparation stirring device for food inspection and detection

Abstract

The utility model relates to a special sample preparation stirring device for food inspection and detection, which comprises a device body, the device body comprises an outer-layer buffer structure and an inner-layer stirring device, the outer-layer buffer structure mainly plays a role in relieving hard collision caused by strenuous movement of the inner-layer stirring device, and collision pressure can reach a connecting piece after being transmitted for a plurality of times. Food needing to be stirred is poured into an inner cavity of a structural plate of the stirring device through a feeding port, power is introduced into a driving shaft, the inner-layer stirring device can do circular motion around a driving gear and a driven gear, the motion mode can enable the food in the inner-layer stirring device to violently rotate in a certain regularity, and the food stirring effect is improved. A plurality of fan blade groups mounted on the fan blade driving rod are used for secondary full stirring.

Description

Technical Field

[0001] This utility model relates to a stirring device, specifically a sample preparation stirring device for food inspection and testing. Background Technology

[0002] In the food inspection process, food and reagents need to be mixed to meet the testing standards. However, most existing mixing methods involve manual or mechanical stirring. During stirring, the raw materials are difficult to be mixed evenly, which affects the quality of the food and is time-consuming and labor-intensive.

[0003] Chinese patent discloses a sample preparation and mixing device for food inspection and testing (authorization announcement number CN216677931U). This patented technology can achieve automatic and regular mixing without manual intervention. However, this mixing method can only act on a localized area, and may not be able to fully mix the bottom layer of materials if the materials being mixed are viscous. Furthermore, the vibration generated by the system is not well managed, which may reduce the service life of the equipment. Therefore, those skilled in the art have provided a sample preparation and mixing device specifically for food inspection and testing to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a sample preparation and mixing device specifically for food inspection and testing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sample preparation and mixing device for food inspection and testing includes a device body. The device body includes an outer buffer structure and an inner mixing device. The outer buffer structure includes an outer structural plate. A plurality of hydraulic buffers are arranged around the inner wall of the outer structural plate. The hydraulic buffers are fixedly connected to an elastic structural plate. The inner side of the elastic structural plate is fixedly connected to a sponge buffer layer. The inner side of the sponge buffer layer is fixedly connected to the inner structural plate. The bottom plate of the outer buffer structure is fixedly connected to a fixed plate and slidably connected to a rotating plate. The fixed plate and the rotating plate are fitted with a clearance fit through a rotating component. The fixed plate is fitted with a drive shaft with a clearance fit. The rotating plate is fitted with a driven shaft with a clearance fit. The outer buffer structure mainly serves to reduce the hard impact caused by the violent movement of the inner mixing device. The impact pressure will reach the connecting part after several transmissions.

[0007] Preferably: the upper end of the drive shaft is fixedly connected to the drive gear, the drive gear meshes with the driven gear, the driven gear is clearance-fitted with the driven shaft, an eccentric shaft is provided at an eccentric position above the driven gear, a hydraulic damper II is provided above the eccentric shaft, the eccentric shaft is fixedly connected to the structural frame, several structural rods are provided above the structural frame, the hydraulic damper II and the structural rods are all fixedly connected to the bottom of the stirring device structural plate, the top of the stirring device structural plate is provided with a needle tube, a feed inlet and a fan blade drive rod, the fan blade drive rod is rotatably connected to the fan blade through a bearing, and the material to be stirred is stirred. The food to be mixed is poured into the cavity inside the structural plate of the mixing device through the feed inlet. Power is supplied to the drive shaft, which drives the drive gear to rotate. The drive gear drives the driven gear to rotate. The eccentric shaft is installed at the eccentric position of the driven gear, which allows the inner mixing device to make circular motion around the drive gear and the driven gear. This motion makes the food inside the inner mixing device rotate vigorously with a certain regularity. Several fan blades installed on the fan blade drive rod thoroughly mix the food a second time. During the mixing process, the power supply to the drive shaft can be stopped, and the degree of mixing can be detected by sampling with a syringe.

[0008] Preferably, the hydraulic buffer one and hydraulic buffer two include a buffer base. An inner cavity plate, an outer cavity plate, and a buffer structure plate are provided above the buffer base. The inner cavity plate has several oil outlets around its perimeter and several oil return ports at its top. A spring is provided inside the inner cavity plate. The lower end of the spring is fixedly connected to the buffer base, and the upper end of the spring is connected to a piston. A stamping rod is connected to the piston, and the upper end of the stamping rod is fixedly connected to a connector. Several pressure-accumulating sponges are arranged around the stamping rod, and a stamping plate is provided above the pressure-accumulating sponges. The stamping plate is fixedly connected to the stamping rod. Pressure is transmitted along the stamping rod to the stamping plate and the piston. The stamping plate squeezes the pressure-accumulating sponges, allowing for the storage of short-term instantaneous pressure, which is then slowly released as continuous pressure, extending the service life of the buffer. The piston squeezes the medium oil inside the inner cavity plate. The medium oil is squeezed from the oil outlets into the outer cavity between the outer and inner cavity plates, and then returns to the upper inner cavity through the oil return ports, thus reducing pressure. The spring can push the piston back to its original position for the next operation.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This utility model utilizes a double-center rotation method, which allows the contents in the inner stirring device to be fully mixed and stirred. The secondary stirring by the fan blades further enhances the uniformity of the mixture.

[0011] 2. This utility model takes into account the unavoidable vibration caused by the stirring process and makes a shock-absorbing structure to adapt to more application occasions, while extending the service life of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a sample preparation and mixing device specifically designed for food inspection and testing.

[0013] Figure 2 This is a schematic diagram of the outer buffer structure in a sample preparation and stirring device for food inspection and testing.

[0014] Figure 3 This is a schematic diagram of the inner stirring device in a food testing and inspection sample preparation and stirring apparatus.

[0015] Figure 4 For a special sample preparation and mixing device for food inspection and testing Figure 3 A magnified structural diagram at point A.

[0016] Figure 5 This is a schematic diagram of the bottom structure of the inner stirring device in a food testing and inspection sample preparation and stirring apparatus.

[0017] Figure 6 This is a schematic diagram of the fan blades in a special sample preparation and stirring device for food inspection and testing.

[0018] Figure 7 This is a schematic diagram of the structure of a hydraulic buffer in a sample preparation and stirring device for food inspection and testing.

[0019] In the diagram: 1. Device body; 2. Outer buffer structure; 211. Outer structural plate; 212. Sponge buffer layer; 213. Inner structural plate; 214. Fixed plate; 215. Rotating plate; 216. Rotating component; 217. Elastic structural plate; 3. Inner stirring device; 311. Driven gear; 312. Driven shaft; 313. Driven gear; 314. Driven shaft; 315. Structural frame; 316. Structural rod; 317. Stirring device structural plate; 318. Needle tube 319. Feed inlet; 320. Fan blade drive rod; 321. Bearing; 322. Fan blade; 323. Eccentric shaft; 4. Hydraulic buffer one; 41. Hydraulic buffer two; 411. Buffer base; 412. Inner cavity plate; 413. Outer cavity plate; 414. Spring; 415. Oil outlet; 416. Oil return port; 417. Piston; 418. Stamping rod; 419. Connecting piece; 420. Pressure accumulator sponge; 421. Stamping plate; 422. Buffer structure plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-7 In this embodiment of the present invention, a sample preparation and stirring device for food inspection and testing includes a device body 1. The device body 1 includes an outer buffer structure 2 and an inner stirring device 3. The outer buffer structure 2 includes an outer structural plate 211. A plurality of hydraulic buffers 4 are arranged around the inner wall of the outer structural plate 211. The hydraulic buffers 4 are fixedly connected to an elastic structural plate 217. The inner side of the elastic structural plate 217 is fixedly connected to a sponge buffer layer 212. The inner side of the sponge buffer layer 212 is fixedly connected to an inner structural plate 213. The bottom plate of the outer buffer structure 2 is fixedly connected to a fixed plate 214 and slidably connected to a rotating plate 215. The fixed plate 214 and the rotating plate 215 are clearance-fitted by a rotating component 216. The fixed plate 214 is clearance-fitted to the drive shaft 312, and the rotating plate 215 is clearance-fitted to the driven shaft 314.

[0022] The upper end of the drive shaft 312 is fixedly connected to the drive gear 311. The drive gear 311 meshes with the driven gear 313. The driven gear 313 is clearance-fitted with the driven shaft 314. An eccentric shaft 323 is provided at an eccentric position above the driven gear 313. A hydraulic damper 41 is provided above the eccentric shaft 323. The eccentric shaft 323 is fixedly connected to the structural frame 315. Several structural rods 316 are provided above the structural frame 315. The hydraulic damper 41 and the structural rods 316 are both fixedly connected to the bottom of the stirring device structural plate 317. The top of the stirring device structural plate 317 is provided with a needle tube 318, a feed port 319, and a fan blade drive rod 320. The fan blade drive rod 320 is rotatably connected to the fan blade 322 through a bearing 321.

[0023] The hydraulic damper 41 and hydraulic damper base 41 each include a damper base 411. An inner cavity plate 412, an outer cavity plate 413, and a damper structure plate 422 are provided above the damper base 411. The inner cavity plate 412 is surrounded by several oil outlets 415, and its top is provided with several oil return ports 416. A spring 414 is provided inside the inner cavity plate 412. The lower end of the spring 414 is fixedly connected to the damper base 411, and its upper end is connected to a piston 417. A stamping rod 418 is connected to the piston 417, and its upper end is fixedly connected to a connector 419. Several pressure-accumulating sponges 420 are surrounded by the stamping rod 418, and a stamping plate 421 is provided above the pressure-accumulating sponges 420. The stamping plate 421 is fixedly connected to the stamping rod 418.

[0024] The working principle of this utility model is as follows: the food to be stirred is poured into the cavity inside the structure plate 317 of the stirring device through the feed inlet 319. Power is supplied to the drive shaft 312, which drives the drive gear 311 to rotate. The drive gear 311 drives the driven gear 313 to rotate. The eccentric shaft 323 is installed at the eccentric position of the driven gear 313, which allows the inner stirring device 3 to make circular motion around the drive gear 311 and the driven gear 313. This motion mode can make the food inside the inner stirring device 3 rotate vigorously with a certain regularity. The several fan blades 322 set installed on the fan blade drive rod 320 are used for secondary and thorough stirring. During the stirring process, the power supply to the drive shaft 312 can be stopped, and the stirring degree can be sampled and detected by the syringe 318.

[0025] The outer buffer structure 2 mainly serves to reduce the hard impact caused by the violent movement of the inner stirring device 3. The impact pressure will reach the connector 419 after several transmissions. The pressure is transmitted along the stamping rod 418 to the stamping plate 421 and the piston 417. The stamping plate 421 will squeeze the pressure accumulating sponge 420, which can store the instantaneous pressure for a short time and then release it slowly and continuously to extend the service life of the buffer. The piston 417 will squeeze the medium oil in the inner cavity plate 412. The medium oil will be squeezed from the oil outlet 415 into the outer cavity between the outer cavity plate 413 and the inner cavity plate 412, and then return to the upper inner cavity through the oil return port 416 to reduce the pressure. The spring 414 can push the piston 417 back to its original position to repeat the next operation.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sample preparation and mixing device for food inspection and testing, comprising a device body (1), characterized in that, The device body (1) includes an outer buffer structure (2) and an inner stirring device (3). The outer buffer structure (2) includes an outer structural plate (211). The inner wall of the outer structural plate (211) is surrounded by a plurality of hydraulic buffers (4). The hydraulic buffers (4) are fixedly connected to the elastic structural plate (217). The inner side of the elastic structural plate (217) is fixedly connected to the sponge buffer layer (212). The inner side of the sponge buffer layer (212) is fixedly connected to the inner structural plate (213).

2. The food testing and inspection sample preparation and mixing device according to claim 1, characterized in that, The outer buffer structure (2) has a base plate that is fixedly connected to a fixed plate (214) and a sliding connection with a rotating plate (215). The fixed plate (214) and the rotating plate (215) are fitted together with a rotating component (216) through a gap.

3. The food testing and inspection sample preparation and mixing device according to claim 2, characterized in that, The fixed plate (214) is clearance-fitted with the drive shaft (312), and the rotating plate (215) is clearance-fitted with the driven shaft (314).

4. The food testing and inspection sample preparation and mixing device according to claim 3, characterized in that, The upper end of the drive shaft (312) is fixedly connected to the drive gear (311), the drive gear (311) meshes with the driven gear (313), the driven gear (313) is clearance-fitted with the driven shaft (314), and an eccentric shaft (323) is provided at an eccentric position above the driven gear (313).

5. The food testing and inspection sample preparation and mixing device according to claim 4, characterized in that, A hydraulic damper (41) is provided above the eccentric shaft (323). The eccentric shaft (323) is fixedly connected to the structural frame (315). Several structural rods (316) are provided above the structural frame (315). The hydraulic damper (41) and the structural rods (316) are both fixedly connected to the bottom of the stirring device structural plate (317).

6. The food testing and inspection sample preparation and mixing device according to claim 5, characterized in that, The top of the stirring device structure plate (317) is provided with a needle tube (318), a feed port (319) and a fan blade drive rod (320), and the fan blade drive rod (320) is rotatably connected to the fan blade (322) through a bearing (321).

7. The food testing and inspection sample preparation and mixing device according to claim 1, characterized in that, The first hydraulic buffer (4) and the second hydraulic buffer (41) include a buffer base (411). The buffer base (411) is provided with an inner cavity plate (412), an outer cavity plate (413) and a buffer structure plate (422) above it. The inner cavity plate (412) is provided with a plurality of oil outlets (415) around it, and the top of the inner cavity plate (412) is provided with a plurality of oil return ports (416).

8. The food testing and inspection sample preparation and stirring device according to claim 7, characterized in that, The inner cavity plate (412) is provided with a spring (414). The lower end of the spring (414) is fixedly connected to the buffer base (411). The upper end of the spring (414) is connected to the piston (417). The piston (417) is connected to the stamping rod (418). The upper end of the stamping rod (418) is fixedly connected to the connector (419). The stamping rod (418) is surrounded by a plurality of pressure-accumulating sponges (420). A stamping plate (421) is provided above the pressure-accumulating sponges (420). The stamping plate (421) is fixedly connected to the stamping rod (418).

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