Powder receiving structure of pulverizer

Abstract

The powder receiving structure comprises a powder receiving box, and inserting parts matched with the bottom of the pulverizer are symmetrically arranged on the two sides of the upper end of the powder receiving box; the first protrusions are symmetrically arranged on the two sides of the powder receiving box body and extend outwards in the radial direction of the powder receiving box. The outer cylinder is sleeved on the periphery of the powder receiving box, and a channel for sleeving a powder receiving bag is arranged between the outer cylinder and the powder receiving box; on the basis that an original main body structure of the pulverizer is reserved, the powder receiving bag is fixed to the periphery of the powder receiving box through the outer cylinder, so that a material sample directly enters the powder receiving bag after being ground, the sample bearing capacity is increased, the sample transferring frequency is reduced, the sample transferring efficiency is improved, and the sample transferring efficiency is improved. And one-time bagging of large-volume samples is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain and oil experimental equipment, and in particular relates to a powder receiving structure of a pulverizer. Background Art

[0002] There are many methods for determining moisture in food in the national food safety standard, among which direct drying method and reduced pressure drying method are two common methods. The principle of the direct drying method is to fully mix the sample with sand and ethanol, evaporate the mixture on a water bath, and then dry it to constant weight at a temperature of 103±2℃, and determine the moisture content by measuring the loss of mass. There is also a similar direct drying method, which is carried out at 95-105℃ and is suitable for foods that contain no or very little other volatile substances. During this period, a pulverizer will be used to quickly grind the mixed sample into particles less than 2mm.

[0003] A Chinese patent with application number CN202222429259.0 discloses an electric grinding device, including a grinding box, a feeding port is opened on the top of the grinding box, a powder receiving box is slidably inserted into the bottom of the grinding box, a receiving hopper is slidably installed inside the grinding box, a screen is installed at the bottom of the receiving hopper, an installation box is installed in the middle of the screen, a crushing motor is installed inside the installation box, a blade is installed at the driving end of the crushing motor, and a pre-crushing mechanism is also provided inside the grinding box, and the pre-crushing mechanism is arranged above the receiving hopper.

[0004] As the applicant conducted further research, it was found that due to the small volume of the powder collecting box of this technical solution, in the actual inspection process, the sample grinding often needs to be divided into multiple sampling and grinding. This not only makes the operation cumbersome but also easily causes sample loss and sample contamination in repeated removal of the powder collecting box. Utility Model Content

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A powder receiving structure for a pulverizer, comprising:

[0007] The powder receiving box has two symmetrically arranged plug-in parts on the upper side that match the bottom of the pulverizer;

[0008] The first protrusions are symmetrically arranged on both sides of the powder receiving box body and extend radially outwardly along the powder receiving box;

[0009] An outer cylinder is sleeved on the outer circumference of the powder receiving box, and a passage for inserting a powder receiving bag is provided between the outer cylinder and the powder receiving box;

[0010] The inner wall of the outer cylinder is symmetrically provided with a second protrusion matching with the first protrusion;

[0011] The bottom of the powder receiving box is provided with a plurality of through holes.

[0012] Furthermore, the first protrusion has a first inclined surface on its side, and the second protrusion has a second inclined surface on a side opposite to the first protrusion.

[0013] Furthermore, the bottom surface of the first protrusion and the top surface of the second protrusion are both provided with toothed portions acting on the surface of the powder receiving bag.

[0014] Furthermore, a guide ridge is provided on the outer wall of the powder receiving box, and the guide ridge extends along one side of the plug-in portion.

[0015] Furthermore, the inner wall of the outer cylinder is provided with a strip-shaped groove matching with the guide ridge.

[0016] Furthermore, a baffle is overlapped on the inner bottom surface of the powder receiving box.

[0017] Furthermore, a handle is connected to the top surface of the baffle.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] On the basis of retaining the original main structure of the grinder, the powder receiving bag is fixed to the outer periphery of the powder receiving box through the outer cylinder, so that the material sample enters the powder receiving bag directly after being ground, so that the sample carrying capacity is increased, the number of sample transfers is reduced, and large-volume samples can be bagged at one time. After the sample is mixed in the bag, it can be directly weighed, which reduces the frequency of operations and avoids the loss and contamination of the sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the powder box and the pulverizer in the utility model;

[0021] Figure 2 This is a structural schematic diagram of an embodiment of a powder receiving structure of a pulverizer according to the utility model;

[0022] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0023] The reference numerals in the drawings of the specification include:

[0024] Powder receiving box 1, plug-in portion 10, first protrusion 11, first inclined surface 110, through hole 12, stop protrusion 13, baffle 14, handle 140, outer tube 2, second protrusion 20, second inclined surface 200, toothed portion 3, powder receiving bag 4, grinder 5, installation slot 50, and sample injection box 6. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Among them, the drawings are only used for exemplary explanations, and they only show schematic diagrams rather than actual drawings, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted, and the same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar parts; in the description of the utility model, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer" and the like appear, the directions or positional relationships indicated are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, so the terms describing the positional relationship in the drawings are only used for exemplary explanations, and cannot be understood as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] like Figure 1 - Figure 3 As shown, a powder receiving structure of a pulverizer of the utility model comprises a powder receiving box 1 and an outer cylinder 2;

[0028] Among them, the upper ends of the powder receiving box 1 are symmetrically provided with plug-in parts 10 that match with the bottom of the crusher 5, and the bottom of the crusher 5 is provided with an installation slot 50. Through the cooperation between the plug-in parts 10 and the installation slot 50, the powder receiving box 1 is detachably connected to the crusher.

[0029] First protrusions 11 are symmetrically arranged on both sides of the powder receiving box 1, and the first protrusions 11 extend radially outwardly along the powder receiving box 1;

[0030] The outer cylinder 2 is sleeved on the outer circumference of the powder receiving box 1, and a passage for inserting the powder receiving bag 4 is provided between the outer cylinder 2 and the powder receiving box 1;

[0031] The inner wall of the outer tube 2 is symmetrically provided with second protrusions 20 that match the first protrusions 11 , and the first protrusions 11 and the second protrusions 20 are staggered.

[0032] Among them, a plurality of through holes 12 are opened at the bottom of the powder receiving box 1, and the material sample port is put into the grinder 5 from the sample feeding box 6. After being ground and crushed by the grinder 5, the powder sample first enters the powder receiving box 1. Since the through holes 12 are opened at the bottom of the powder receiving box 1, the sample passes through the through holes 12 into the powder receiving bag 4 below and is collected.

[0033] On the basis of retaining the original main structure of the pulverizer 5, the powder receiving bag 4 is fixed to the outer periphery of the powder receiving box 1 through the outer cylinder 2, so that the material sample can directly enter the powder receiving bag 4 after being ground, so that the sample carrying capacity is increased, the number of sample transfers is reduced, and a large volume of samples can be bagged at one time. After the sample is mixed in the bag, it can be directly weighed, which reduces the frequency of operations and avoids the loss and contamination of the sample.

[0034] Specifically, when fixing the powder bag 4, a disposable bag, such as a food preservation bag, is used with a sample capacity of 50g-500g. The opening of the powder bag 4 is upwardly sleeved on the outside of the powder box 1, and then the larger end of the outer tube 2 is moved upward from the powder box 1 to be sleeved on its outer periphery, and the powder bag 4 is fixed between the powder box 1 and the outer tube 2. Since the powder box 1 and the outer tube 2 are made of plastic and have a certain elasticity, when the outer tube 2 moves upward relative to the powder box 1, the first protrusions 11 and the second protrusions 20 in an interlaced shape are subjected to the extrusion force, and the powder box 1 and the outer tube 2 are deformed. When the outer tube 2 continues to be moved so that the second protrusion 20 is on the upper part of the first protrusion 11, the powder box 1 and the outer tube 2 return to their initial shape due to the deformation, and the powder bag 4 is fixed.

[0035] Specifically, the first protrusion 11 has a first inclined surface 110 on its side, and the second protrusion 20 has a second inclined surface 200 on its side opposite to the first protrusion 11. A stop protrusion 13 is provided on the outer wall of the powder receiving box 1 above the first protrusion 11. After the second protrusion 20 is above the first protrusion 11, the second protrusion 20 is stopped by the stop protrusion 13, and the stop protrusion 13 can also be provided in a ring shape.

[0036] In addition, the powder receiving box 1 and the outer cylinder 2 in the present technical solution can be arranged in an inverted trapezoidal shape.

[0037] To prevent the powder receiving bag 4 from slipping and falling off the powder receiving box 1 during use, a toothed portion 3 acting on the surface of the powder receiving bag 4 is provided on the bottom surface of the first protrusion 11 and the top surface of the second protrusion 20 , and the toothed portion 3 increases the friction force on the powder receiving bag 4 .

[0038] In addition, in order to ensure the accuracy of the relative position of the first protrusion 11 and the second protrusion 20 after the outer cylinder 2 is sleeved on the powder box 1, and the two can interact with each other, a guide rib (not shown in the figure) can be provided on the outer wall of the powder box 1, and a strip groove (not shown in the figure) matching the guide rib is provided on the inner wall of the outer cylinder 2, wherein the guide rib extends along one side of the plug-in portion 10. Through the cooperation of the guide rib and the strip groove, the first protrusion 11 and the second protrusion 20 are squeezed against each other, thereby preventing the outer cylinder 2 and / or the powder box 1 from rotating, and the powder bag 4 from being unable to be fixed.

[0039] When crushing and grinding samples in small batches, without using the powder receiving bag 4, or only in normal use, a baffle 14 can be overlapped on the bottom surface of the powder receiving box 1 to cover the through hole 12. When the technical solution is implemented, the baffle 14 can be taken out through the handle 140 connected to the top surface of the baffle 14.

[0040] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A powder receiving structure for a pulverizer, characterized in that: include: The powder receiving box has two symmetrically arranged plug-in parts on the upper side that match the bottom of the pulverizer; The first protrusions are symmetrically arranged on both sides of the powder receiving box body and extend radially outwardly along the powder receiving box; An outer cylinder is sleeved on the outer circumference of the powder receiving box, and a passage for inserting a powder receiving bag is provided between the outer cylinder and the powder receiving box; The inner wall of the outer cylinder is symmetrically provided with a second protrusion matching with the first protrusion; The bottom of the powder receiving box is provided with a plurality of through holes.

2. A powder receiving structure for a pulverizer as claimed in claim 1, characterized in that: The first protrusion has a first inclined surface on its side, and the second protrusion has a second inclined surface on a side opposite to the first protrusion.

3. A powder receiving structure for a pulverizer as claimed in claim 2, characterized in that: The bottom surface of the first protrusion and the top surface of the second protrusion are both provided with tooth-shaped parts acting on the surface of the powder receiving bag.

4. A powder receiving structure for a pulverizer as claimed in claim 1, 2 or 3, characterized in that: A guide ridge is arranged on the outer wall of the powder receiving box, and the guide ridge extends along one side of the plug-in portion.

5. A powder receiving structure for a pulverizer as claimed in claim 4, characterized in that: The inner wall of the outer cylinder is provided with a strip-shaped groove matched with the guide convex ridge.

6. A powder receiving structure for a pulverizer as claimed in claim 1, 2, 3 or 5, characterized in that: The inner bottom surface of the powder receiving box is overlapped with a baffle.

7. A powder receiving structure for a pulverizer as claimed in claim 6, characterized in that: The top surface of the baffle is connected with a handle.

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