Granular reagent grinding device for chemical experiment

Abstract

The utility model relates to the field of chemical experiments, and discloses a particle reagent grinding device for chemical experiments, which comprises a grinding box, a grinding disc is inserted into the inner wall of the grinding box, a driving mechanism is arranged on the side wall of the right end of the grinding box, a connecting block is arranged on the outer wall of the driving mechanism, the front end of the connecting block is fixedly connected with a moving sleeve, and the moving sleeve is fixedly connected with the right end of the connecting block. A U-shaped frame is slidably connected to the inner wall of the moving sleeve, a moving plate is elastically connected to the top end of the U-shaped frame through a reset spring, and a threaded rod is rotatably connected to the top end of the moving plate. The initial elastic force of the reset spring is changed by rotating the threaded rod, the grinding roller makes contact with a reagent to generate reverse acting force to further compress the spring, then the pressure of the grinding roller on the reagent is increased, the grinding efficiency is improved, the grinding strength can be flexibly adjusted through repeated operation, and the grinding efficiency is improved. And the grinding requirements of chemical experiment particle reagents with different hardness and grinding degree requirements are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical experiment field especially, it is a kind of chemical experiment with granular reagent powder grinding device. BACKGROUND

[0002] Chemical experiment is a kind of based on chemical theory, under the condition of artificial control, by using specific instrument, equipment and chemical reagent, the nature, composition, structure and change rule of matter are explored the practical operation process of inquiry.It is the important cornerstone of the development of chemistry discipline, and is the key link in chemical research, teaching and other activities, and in chemical experiment, in order to improve the collision probability and reaction rate between reagents in reagent, then need to use granular reagent powder grinding device.

[0003] Through the search, China patent publication number: CN211385215U discloses an inorganic chemical experiment with granular powder grinding device, including the upper opening protective housing, still including powder grinding disc and powder grinding mechanism. Among them, powder grinding disc is fixed in the middle horizontally in protective housing, the bottom of powder grinding disc is provided with array arrangement's powder leakage hole, the lower side of powder grinding disc is provided with parallel powder receiving drawer, the powder receiving drawer can be pulled out from the side of protective housing, and powder grinding mechanism is fixed above powder grinding disc. The device can be high grinding efficiency, ensure that the density of grinding powder is uniform, and the experimental space is not occupied too much.

[0004] In prior art, the following defects exist;The above device ensures the uniformity of force grinding by the reciprocating movement of powder grinding roller, since different chemical experiments have different requirements for the degree and intensity of granular reagent grinding, the above device cannot flexibly adjust the grinding intensity, and it is difficult to adapt to granular reagents with various hardness and different grinding degree requirements, so a chemical experiment with granular reagent powder grinding device is proposed to solve the above problems. UTILITY MODEL CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of chemical experiment with granular reagent powder grinding device, to improve the problem that grinding intensity cannot be adjusted in prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a kind of chemical experiment with granular reagent powder grinding device, including powder grinding box, the inner wall of powder grinding box is inserted with powder grinding disc, the right end side wall of powder grinding box is provided with driving mechanism, the outer wall of driving mechanism is provided with connecting block, the front end of connecting block is fixedly connected with moving sleeve, the inner wall of moving sleeve is slidably connected with U-shaped frame, the top of U-shaped frame is elastically connected with moving plate by reset spring, the top of moving plate is rotatably connected with threaded rod, the top of moving plate is fixedly connected with positioning tube, the inner side wall of U-shaped frame is penetrated and rotatably connected with powder grinding roller, the inner wall of powder grinding disc is provided with limiting component;

[0007] The driving mechanism comprises a motor fixedly connected to the right end side wall of the flour milling box through a support plate, and a reciprocating screw rod fixedly connected to an output end of the motor.

[0008] As a further description of the above technical solution:

[0009] The limiting assembly comprises a clamping pipe rotatably connected to the inner wall of the flour milling disc, a clamping groove clamped to the outer wall of the clamping pipe, and a torsional spring elastically connecting the outer wall of the clamping pipe to the flour milling disc.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the clamping pipe is fixedly connected to one end of the torsional spring, the other end of the torsional spring is fixedly connected to the inner wall of the flour milling disc, and the clamping groove is arranged on the inner wall of the bottom end of the flour milling box.

[0012] As a further description of the above technical solution:

[0013] The reciprocating screw rod is rotatably connected to the outer wall of the flour milling box through a support, and the connecting block is arranged on the outer wall of the reciprocating screw rod.

[0014] As a further description of the above technical solution:

[0015] The top end of the U-shaped frame is fixedly connected to one end of the reset spring, the other end of the reset spring is fixedly connected to the bottom end of the moving plate, and the moving plate is slidably connected to the inner wall of the moving sleeve.

[0016] As a further description of the above technical solution:

[0017] The positioning pipe is respectively penetrated through and slidably connected to the inner walls of the moving plate and the moving sleeve.

[0018] As a further description of the above technical solution:

[0019] The threaded rod is penetrated through and threadedly connected to the inner wall of the moving sleeve.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the flour milling roller is in contact with the top end of the flour milling disc.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1. The utility model discloses a reset spring initial elastic force is changed through the rotation screw rod, and the powder roller contacts reagent and produces reverse action force to make the spring further compress, and then increase the pressure of powder roller to reagent, improve the powder efficiency, and can repeatedly operate to flexibly adjust the powder strength, satisfy the chemical experiment granular reagent powder demand of different hardness and powder degree requirement.

[0024] 2. The utility model discloses a reset spring initial elastic force is changed through the rotation screw rod, and the powder roller contacts reagent and produces reverse action force to make the spring further compress, and then increase the pressure of powder roller to reagent, improve the powder efficiency, and can repeatedly operate to flexibly adjust the powder strength, satisfy the chemical experiment granular reagent powder demand of different hardness and powder degree requirement. DRAWINGS

[0025] Figure 1 It is a kind of chemical experiment granular reagent powder device's powder box whole three-dimensional schematic view that the utility model proposes;

[0026] Figure 2 It is a kind of chemical experiment granular reagent powder device's mobile sleeve whole cross-sectional schematic view that the utility model proposes;

[0027] Figure 3 It is a kind of chemical experiment granular reagent powder device's powder box and powder disc exploded schematic view that the utility model proposes;

[0028] Figure 4 It is a kind of chemical experiment granular reagent powder device's powder disc cross-sectional schematic view that the utility model proposes;

[0029] Figure 5 It is a kind of chemical experiment granular reagent powder device's card slot display schematic view that the utility model proposes.

[0030] Legend:

[0031] 1, powder box;2, powder disc;3, motor;4, reciprocating screw;5, connecting block;6, mobile sleeve;7, U-shaped frame;8, reset spring;9, moving plate;10, screw rod;11, positioning pipe;12, powder roller;13, torsion spring;14, card pipe;15, card slot. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0033] Reference Figures 1-3The utility model provides a kind of granular reagent powder grinding device for chemical experiment, including powder grinding box 1, the inner wall of powder grinding box 1 is inserted with powder grinding disc 2, there is round hole on powder grinding disc 2, can let reagent be ground into powder after passing through round hole and fall into collection frame, and larger granule is left on powder grinding disc 2 and grinds, the right end side wall of powder grinding box 1 is provided with driving mechanism, the outer wall of driving mechanism is provided with connecting block 5, the front end of connecting block 5 is fixedly connected with moving sleeve 6, moving sleeve 6 is mainly supported and the effect of connecting U-shaped frame 7 etc.

[0034] With reference to Figures 3-5 , limiting component includes card pipe 14, card pipe 14 is rotatably connected on the inner wall of powder grinding disc 2, the outer wall of card pipe 14 is protruding portion, can be limited to powder grinding disc 2 by protruding portion and card slot 15 cooperation, the outer wall of card pipe 14 is clamped with card slot 15, the outer wall of card pipe 14 is elastically connected with powder grinding disc 2 by torsion spring 13, the outer wall of card pipe 14 is fixedly connected with one end of torsion spring 13, card pipe 14 rotates clockwise, and torsion spring 13 will be compressed, when resetting, the elastic force of torsion spring 13 is used to reset with card pipe 14, the other end of torsion spring 13 is fixedly connected with the inner wall of powder grinding disc 2, and card slot 15 is set on the bottom end inner wall of powder grinding box 1.

[0035] With reference to Figures 1-2 , reciprocating silk rod 4 is rotatably connected on the outer wall of powder grinding box 1 by support, such as Figure 1As shown, the outer wall of the grinding box 1 has a guide rod, which can allow the connecting block 5 to move the moving sleeve 6 laterally without deviation, the connecting block 5 is arranged on the outer wall of the reciprocating lead screw 4, and the connecting block 5 is matched with the reciprocating lead screw 4 to allow the connecting block 5 to move laterally along the reciprocating lead screw 4, the top end of the U-shaped frame 7 is fixedly connected with one end of the reset spring 8, and when the U-shaped frame 7 moves upward, the reset spring 8 is compressed, and when resetting, the reset spring 8 is reset with the U-shaped frame 7 by the elastic force of the reset spring 8, the other end of the reset spring 8 is fixedly connected with the bottom end of the moving plate 9, the moving plate 9 is slidingly connected to the inner wall of the moving sleeve 6, the positioning tube 11 is respectively penetratingly and slidingly connected to the inner wall of the moving plate 9 and the moving sleeve 6, the threaded rod 10 is penetratingly and threadedly connected to the inner wall of the moving sleeve 6, and the moving sleeve 6 is provided with threads corresponding to the threaded rod 10, so that the threaded rod 10 can change the position of the moving sleeve 6, and the outer wall of the grinding roller 12 is in contact with the top end of the grinding disc 2.

[0036] Working principle: when the chemical experimental granular reagent needs to be ground, the chemical experimental granular reagent is only poured into the grinding disc 2, and then the motor 3 is started to rotate the reciprocating lead screw 4, so that the connecting block 5 on the reciprocating lead screw 4 moves the moving sleeve 6 laterally, and the grinding roller 12 grinds the chemical experimental granular reagent on the grinding disc 2, when the grinding force of the grinding roller 12 needs to be adjusted, the motor 3 needs to be paused, then the threaded rod 10 is rotated to move the moving plate 9 downward, so that the moving plate 9 compresses the reset spring 8 to change the initial elastic force, at this time, the motor 3 is started according to the above steps to move the moving sleeve 6, the U-shaped frame 7 and the grinding roller 12 laterally, so that when the grinding roller 12 contacts the chemical experimental granular reagent, the grinding roller 12 moves upward with the U-shaped frame 7, which allows the grinding roller 12 to continue to compress the reset spring 8, because the reset spring 8 is continuously compressed, the U-shaped frame 7 and the grinding roller 12 can exert greater force on the chemical experimental granular reagent to grind it, which can improve the grinding efficiency, and the grinding force of the chemical experimental granular reagent can be adjusted again by following the above steps.

[0037] When a grinding disc 2 with a larger aperture needs to be replaced, the clamp tube 14 is only rotated clockwise and compressed against the torsional spring 13, so that the protruding part of the outer wall of the clamp tube 14 is turned out of the slot of the clamping groove 15, the clamping groove 15 no longer blocks the protruding part of the outer wall of the clamp tube 14, then the entire grinding disc 2 is moved outwards through the clamp tube 14, and then a grinding disc 2 with a larger aperture is inserted into the grinding box 1, when the protruding part of the clamp tube 14 and the clamping groove 15 coincide, the clamp tube 14 is loosened and rotated back to the original position by the reverse elastic force of the torsional spring 13, so that the clamp tube 14 is clamped on the inner wall of the clamping groove 15, and the replacement of the grinding disc 2 is completed.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A granular reagent grinding device for chemical experiments, comprising a grinding box (1), characterized in that: The inner wall of the grinding box (1) is plugged with a grinding disc (2), the right end side wall of the grinding box (1) is provided with a driving mechanism, the outer wall of the driving mechanism is provided with a connecting block (5), the front end of the connecting block (5) is fixedly connected with a moving sleeve (6), the inner wall of the moving sleeve (6) is slidably connected with a U-shaped frame (7), the top end of the U-shaped frame (7) is elastically connected with a moving plate (9) through a return spring (8), the top end of the moving plate (9) is rotatably connected with a threaded rod (10), the top end of the moving plate (9) is fixedly connected with a positioning tube (11), the inner side wall of the U-shaped frame (7) penetrates and is rotatably connected with a grinding roller (12), and the inner wall of the grinding disc (2) is provided with a limiting component; The driving mechanism comprises a motor (3), the motor (3) being fixedly connected to the right side wall of the grinding box (1) via a support plate, and the output end of the motor (3) being fixedly connected to a reciprocating screw rod (4).

2. The device for grinding granular reagents for chemical experiments according to claim 1, characterized in that: The limiting assembly comprises a clamping tube (14), the clamping tube (14) is rotatably connected to the inner wall of the grinding disc (2), the outer wall of the clamping tube (14) is clamped with a clamping groove (15), and the outer wall of the clamping tube (14) is elastically connected to the grinding disc (2) via a torsion spring (13).

3. The device for grinding granular reagents for chemical experiments according to claim 2, characterized in that: The outer wall of the clamping tube (14) is fixedly connected to one end of the torsion spring (13), and the other end of the torsion spring (13) is fixedly connected to the inner wall of the grinding disc (2). The clamping groove (15) is provided on the inner wall of the bottom end of the grinding box (1).

4. The device for grinding granular reagents for chemical experiments according to claim 1, characterized in that: The reciprocating screw rod (4) is rotatably connected to the outer wall of the grinding box (1) via a bracket, and the connecting block (5) is arranged on the outer wall of the reciprocating screw rod (4).

5. The device for grinding granular reagents for chemical experiments according to claim 1, characterized in that: The top end of the U-shaped frame (7) is fixedly connected to one end of a return spring (8), and the other end of the return spring (8) is fixedly connected to the bottom end of a movable plate (9), and the movable plate (9) is slidably connected to the inner wall of the movable sleeve (6).

6. The device for grinding granular reagents for chemical experiments according to claim 1, characterized in that: The positioning tube (11) respectively passes through and is slidably connected to the inner walls of the movable plate (9) and the movable sleeve (6).

7. The device for grinding granular reagents for chemical experiments according to claim 1, characterized in that: The threaded rod (10) passes through and is threadedly connected to the inner wall of the moving sleeve (6).

8. The device for grinding granular reagents for chemical experiments according to claim 1, characterized in that: The outer wall of the grinding roller (12) contacts the top end of the grinding disc (2).

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