Laboratory powder filler

Abstract

The utility model relates to a powder filler for laboratory, including the cross -section setting feeding pipe, the vertical setting and the lower extreme communication of feeding pipe's storage tube, the vertical setting and the middle part communication of feeding pipe's one end's blanking tube, and one end with the other end of feeding pipe's matching, the other end with motor assembly's matching conveying assembly. Conveying assembly includes plug post and conveying screw rod. The plug post is equipped with the pivot part matched with one end of conveying screw rod. The other end of conveying screw rod extends to the inside in feeding pipe, and extends to the position where feeding pipe and blanking tube link up and communicate. The position where storage tube and feeding pipe link up and communicate corresponds the root of conveying screw rod. Motor assembly matches with the pivot part, and can drive conveying screw rod to make the rotating action. The utility model can improve powder filling operation condition, is favorable to the realization even, continuous filling operation, helps to restrain the situation of experimental data misalignment.

Description

Technical Field

[0001] This utility model belongs to the field of powder dispensing technology, specifically relating to a powder dispenser for laboratory use. Background Technology

[0002] In chemical experiments, it is common to add solid reagents to test tubes, flasks, and other experimental containers in batches and intermittently or continuously. Due to the lack of dedicated equipment, current experimental procedures require manual scooping of reagents into reaction tubes, beakers, or reaction flasks using a spatula. The main disadvantages are: (1) It is difficult or impossible to achieve uniform and continuous addition / addition operations, which can easily lead to inaccurate experimental data; (2) The lid needs to be opened each time a reagent is added, which can easily destroy the inert atmosphere inside the reaction flask, resulting in a high probability of experimental failure; (3) For hazardous materials, repeated manual addition operations increase the probability of experimental accidents and personnel injuries. Utility Model Content

[0003] This utility model provides a laboratory powder dispenser that improves powder dispensing operations, facilitates uniform and continuous dispensing, and suppresses inaccurate experimental data.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a laboratory powder dispenser, including a horizontally arranged feeding pipe, a vertically arranged storage pipe with its lower end connected to the feeding pipe, a vertically arranged dropping pipe with its middle part connected to one end of the feeding pipe, and a conveying assembly with one end matched with the other end of the feeding pipe and the other end matched with the motor assembly, that is, one end of the conveying assembly is matched with the other end of the feeding pipe, and the other end of the conveying assembly is matched with the motor assembly.

[0005] The conveying assembly includes a plunger and a conveying screw. The plunger has a pivot portion that matches one end of the conveying screw. The other end of the conveying screw extends into the feed pipe from the other end of the feed pipe and extends to the position where the feed pipe and the discharge pipe are connected.

[0006] The motor assembly is matched with the pivot section and can drive the conveying screw to rotate.

[0007] The connection point between the storage pipe and the feeding pipe corresponds to the root of the conveying screw. In this way, the powder falling from the storage pipe into one end of the feeding pipe can be pushed to the other end of the feeding pipe as the conveying screw rotates, and finally enters the discharge pipe.

[0008] Optionally, the conveying assembly also includes a light tube disposed between the plunger and the conveying screw, and a support assembly that matches the shaft section of the conveying screw is provided inside the light tube, so that the conveying screw can rotate relative to the light tube.

[0009] At least one sealing ring is provided on the outer circumferential surface of the tube.

[0010] The feed tube and the plunger are connected by a threaded structure. The smooth tube and the conveying screw extend into the feed tube, and the sealing ring can contact the inner wall of the feed tube.

[0011] Optionally, an annular flange is formed at the upper end of the storage tube, and an external thread is formed on the annular flange. An end cap is provided at the end of the annular flange by means of a threaded connection.

[0012] Optionally, the lower end of the outer peripheral surface of the feed tube is formed with a conical section with the small opening facing downwards.

[0013] Optionally, the outer peripheral surface of the conical section is frosted.

[0014] Optionally, an annular flange is formed at the upper end of the feed tube, and an external thread is formed on the annular flange. A vent cap is provided at the end of the annular flange by a threaded structure. The vent cap is provided with a pipe opening that can be inserted and matched with an inert gas pipeline.

[0015] Optionally, the motor assembly includes a motor housing that can secure the motor inside, and a coupling that can match the output shaft of the motor is provided at one end of the motor housing.

[0016] Multiple flanges are formed on the free end face of the plug, arranged alternately around the circumference. A flange plate is provided at the free end of the plug, which is located at the center of the circumference of the multiple flanges.

[0017] On the motor housing, multiple flanges are formed on the end face where the coupling is located, arranged alternately around the circumference, and the coupling is positioned at the center of the circumference of the multiple flanges.

[0018] The plunger and the motor housing can be fixedly connected together by a tenon and mortise joint structure formed by matching flange arm one and flange arm two, and the flange plate and the coupling can be synchronously inserted and matched.

[0019] Optionally, a plurality of magnets, arranged alternately around the circumference, are distributed on the free end face of the plunger. A plurality of magnets, arranged alternately around the circumference, are distributed on the end face of the motor housing where the coupling is located.

[0020] When magnet one and magnet two are matched one-to-one, and the plunger and motor housing are fixedly connected by a tenon and mortise joint structure, magnet one can be magnetically attracted to magnet two.

[0021] The beneficial effects of this invention are as follows: This invention helps to achieve uniform and continuous powder addition during the experiment, suppresses experimental inaccuracies, and helps improve the accuracy of experimental data; at the same time, during the powder addition process, it can keep the inlet of the reaction flask and other experimental containers in a good sealed state to maintain the inert atmosphere inside the reaction flask, thereby avoiding experimental failures caused by this; in addition, during the entire powder addition process, the powder is placed in a relatively sealed environment, isolated from the experimental operators, reducing the frequency of contact, and thus helping to suppress experimental accidents and personnel injuries. Attached Figure Description

[0022] Figure 1 This is a perspective structural diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of a partial structure of the present invention (right side view).

[0024] Figure 3 This is a schematic diagram illustrating the rendering effect of this utility model.

[0025] Figure 4 This is a schematic diagram of a partial structure of the present invention (left side view).

[0026] In the diagram: 10 Feeding pipe; 20 Storage pipe; 21 End cap; 30 Drop pipe; 31 Conical section; 32 Vent cover; 40 Conveying assembly; 41 Plug; 411 Bearing; 412 Magnet one; 413 Insulation arm one; 414 Insulation plate; 42 Smooth tube; 421 Sealing ring; 43 Conveying screw; 50 Motor assembly; 51 Motor housing; 511 Coupling; 512 Motor housing rear cover; 513 Insulation arm two; 52 Magnet two. Detailed Implementation

[0027] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0028] like Figures 1 to 4A laboratory powder dispenser is shown, comprising a horizontally arranged feeding pipe 10, a vertically arranged storage pipe 20 with its lower end connected to the middle of the feeding pipe 10, a vertically arranged discharge pipe 30 with its middle end connected to the left end of the feeding pipe 10, a conveying assembly 40, and a motor assembly 50. The left end of the conveying assembly 40 is matched with the right end of the feeding pipe 10, and the right end of the conveying assembly 40 is matched with the motor assembly 50.

[0029] The conveying assembly 40 includes a plunger 41, a light tube 42, and a conveying screw 43.

[0030] The plug 41 and the light tube 42 are either integrally formed or detachably fixedly connected.

[0031] The plunger 41 is provided with a pivot portion that matches the right end of the conveying screw 43. The light column tube 42 is provided with a structure or assembly that supports the shaft section of the conveying screw 43, allowing the conveying screw 43 to rotate relative to the light column tube 42.

[0032] The left end of the conveying screw 43 extends into the feeding pipe 10 from the right end of the feeding pipe 10, and extends laterally to the left to the position where the feeding pipe 10 connects with the discharge pipe 30. The position where the storage pipe 20 connects with the feeding pipe 10 corresponds to the root of the conveying screw 43 (i.e., near the free end of the light column tube 42).

[0033] The motor assembly 50 is matched with the pivot portion and can drive the conveying screw 43 to rotate.

[0034] In the above scheme, the powder falling from the storage pipe 20 into the vicinity of the right end of the feeding pipe 10 is pushed towards the left end of the feeding pipe 10 as the conveying screw 43 rotates, and finally enters the discharge pipe 30, falling into the experimental bottle from the lower end of the discharge pipe 30. By controlling the rotation of the motor assembly 50, the operation state of the conveying screw 43 is controlled, ultimately achieving control over the single-time feeding amount (dispensing amount) and frequency of the experimental powder, thereby improving the powder dispensing operation, meeting the requirements for uniform and continuous powder dispensing, and helping to ensure the accuracy of experimental data.

[0035] Two sealing rings 421 are provided on the outer circumferential surface of the light column tube 42, and the two sealing rings 421 are distributed alternately on the left and right sides. The light column tube 42 and the conveying screw 43 extend into the feeding tube 10, and the sealing rings 421 can contact the inner wall of the feeding tube 10 to achieve a sealing effect.

[0036] The feeding pipe 10 and the plug 41 are connected by a threaded structure, that is, the plug 41 is provided with a threaded countersunk hole, and correspondingly, one end of the outer peripheral surface of the feeding pipe 10 is provided with an external thread section, so that the external thread section is screwed into the threaded countersunk hole, thereby fixing the feeding pipe 10 and the plug 41 together. The sealing ring 421 provided can prevent the powder from leaking to the right.

[0037] The feeding pipe 10 and the plug 41 are connected by a threaded structure, which enables quick disassembly and cleaning.

[0038] An annular flange is formed at the upper end of the storage tube 20, and an external thread is formed on the annular flange. An end cap 21 is threadedly connected to the port of the annular flange, and the end cap 21 seals the upper port of the storage tube 20. At the same time, the end cap 21 is provided with a (plug-in) port that can be plugged into an external inert gas pipeline, thereby establishing an inert gas environment inside the storage tube 20.

[0039] A conical section 31 with its small opening facing downwards is formed at the lower end of the outer peripheral surface of the discharge tube 30, which facilitates the insertion of the discharge tube 30 into the feed port of a reaction vessel such as a flask. An elastic layer can be provided on the outside of the conical section 31 to form a good sealing connection between the conical section 31 and the port of the vessel such as the flask; or the outer peripheral surface of the conical section 31 can be formed as a frosted (peripheral) surface.

[0040] An annular flange is formed at the upper end of the discharge pipe 30, and an external thread is formed on the annular flange. A vent cap 32 is threadedly connected to the port of the annular flange. The vent cap 32 is provided with a port that can be inserted and matched with an inert gas pipeline.

[0041] The motor assembly 50 includes a motor housing 51 that can fix the motor inside, and a coupling 511 that can match the output shaft of the motor is provided at one end of the motor housing 51. A moving unit can be fixedly installed inside the motor housing 51, and a moving power supply can be plugged into and matched with the power module of the motor's circuit control terminal. A motor housing rear cover 512 is provided at the other end of the motor housing 51.

[0042] Four circumferentially spaced flanges 413 are formed on the free end face of the plunger 41, with tenon and mortise grooves formed between adjacent flanges 413. A flange plate 414 is located at the center of the circumference of the four flanges 413 at the free end of the plunger 41, and this flange plate 414 is matched with the shaft section of the conveying screw 43. A bearing 411 is provided at the mating end of the flange plate 414. This allows the flange plate 414 to drive the conveying screw 43 to rotate.

[0043] On the motor housing 51, four flanges 513 are formed on one end face where the coupling 511 is located, and the coupling 511 is positioned at the center of the circumference of the four flanges 513.

[0044] The four flange arms 413 can be inserted into the tenon and mortise slots formed between each pair of adjacent flange arms 413 in the circumferential direction, so that the plunger 41 and the motor housing 51 can be fixedly connected together by the tenon and mortise joint structure formed by the flange arms 413 and the flange arms 513. At the same time, the flange plate 414 can be synchronously inserted and matched with the coupling 511, so that the rotational driving force of the motor can be transmitted to the conveying screw 43 via the coupling 511 and the flange plate 414.

[0045] Four magnets 412 are arranged in a circumferentially alternating pattern on the free end face of the plunger 41. Simultaneously, four magnets 52 are arranged in a circumferentially alternating pattern on the end face of the coupling 511 on the motor housing 51. This ensures that the magnets 412 and 52 are matched in a one-to-one correspondence.

[0046] When the plunger 41 and the opposite end of the motor housing 51 are fixedly connected by a tenon and mortise joint structure, the plurality of magnets 412 can be magnetically attracted to each other simultaneously by the plurality of magnets 52. In this way, the plunger 41 of the conveying assembly 40 and the power output end of the motor assembly 50 are fixedly connected by a tenon and mortise joint and magnetic attraction structure, which can ensure the firmness and reliability of the connection, and also realize quick plug-in and plug-out connection operations.

[0047] In use, insert the lower end of the discharge tube 30 into the mouth of a standard flask for reaction; load the powder material to be used into the storage tube 20, and cover it with the end cap 21 and the vent cap 32. Turn on the motor in the motor assembly 50 and adjust it to a suitable speed. The motor will then drive the conveying screw 43 to rotate, pushing the powder evenly into the flask to achieve timed and quantitative feeding.

[0048] In the technical solution of this application, by controlling the speed of the motor in the motor assembly 50, the precise injection of powder materials can be achieved, ensuring the reliability of experimental data; the inner cavity of the feeder (body) formed by the connection of the feeding pipe 10, the storage pipe 20 and the discharge pipe 30 is isolated from the external atmospheric environment, providing a good inert atmosphere space to protect the safety of sensitive materials and help avoid experimental failure; all parts of the entire feeder (body) can be made of corrosion-resistant glass, plastic, ceramic, metal and rubber materials, so that it can operate stably under chemical corrosion conditions; the plunger 41 of the conveying assembly 40 matches the shaft section of the conveying screw and the feeding pipe 10 adopts a threaded connection, which can realize quick disassembly and cleaning, and is very convenient to use; the connection between the conveying assembly 40 and the motor assembly 50 adopts a tenon and mortise groove plus magnetic connection (open and disassembled) fixing method, which can realize the purpose of firm connection and quick plug-in and plug-out operation, and is very convenient to use.

[0049] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Many aspects of this utility model can be improved without departing from the overall concept. Those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A laboratory powder dispenser, characterized in that: It includes a horizontally arranged feeding pipe (10), a vertically arranged storage pipe (20) connected to the feeding pipe (10) at its lower end, a vertically arranged dropping pipe (30) connected to one end of the feeding pipe (10) at its middle part, and a conveying assembly (40) with one end matched to the other end of the feeding pipe (10) and the other end matched to the motor assembly (50). The conveying assembly (40) includes a plunger (41) and a conveying screw (43); the plunger (41) is provided with a pivot portion that matches one end of the conveying screw (43); the other end of the conveying screw (43) extends into the feed pipe (10) and extends to the position where the feed pipe (10) and the discharge pipe (30) are connected; the position where the storage pipe (20) and the feed pipe (10) are connected corresponds to the root of the conveying screw (43); The motor assembly (50) is matched with the pivot and can drive the conveying screw (43) to rotate.

2. The laboratory powder dispenser according to claim 1, characterized in that: The conveying assembly (40) also includes a light tube (42) disposed between the plunger (41) and the conveying screw (43), and a support assembly that matches the shaft section of the conveying screw (43) is provided in the light tube (42) so that the conveying screw (43) can rotate relative to the light tube (42). At least one sealing ring (421) is provided on the outer circumferential surface of the light column tube (42); the light column tube (42) and the conveying screw (43) extend into the feeding pipe (10), and the sealing ring (421) can contact the inner wall of the feeding pipe (10); One end of the feed tube (10) is fixedly connected to the plunger (41) by a threaded structure.

3. The laboratory powder dispenser according to claim 1, characterized in that: An annular flange is formed at the upper end of the storage pipe (20), and an external thread is formed on the annular flange; an end cap (21) is provided at the port of the annular flange with a threaded structure; the end cap (21) is provided with a pipe opening that can be plugged into and matched with an inert gas pipeline.

4. The laboratory powder dispenser according to claim 1, characterized in that: The lower end of the outer peripheral surface of the feed tube (30) has a conical section (31) with the small opening facing downwards.

5. The laboratory powder dispenser according to claim 4, characterized in that: The outer circumference of the conical section (31) is a frosted surface.

6. The laboratory powder dispenser according to claim 1 or 4, characterized in that: An annular flange is formed at the upper end of the feed tube (30), and an external thread is formed on the annular flange; a vent cap (32) is provided at the port of the annular flange with a threaded structure; the vent cap (32) is provided with a pipe opening that can be plugged into and matched with an inert gas pipeline.

7. The laboratory powder dispenser according to claim 1, characterized in that: The motor assembly (50) includes a motor housing (51) that can fix the motor inside, and a coupling (511) that can match the output shaft of the motor is provided at one end of the motor housing (51). Multiple flanges (413) are formed on the free end face of the plug (41) and are arranged in a circumferential pattern; a flange plate (414) is provided at the free end of the plug (41) and is located at the center of the circumference of the multiple flanges (413). On the motor housing (51), a plurality of flange arms (513) are formed on the end face of the coupling (511) at one end, which are arranged in a circumferential pattern, and the coupling (511) is positioned at the center of the circumference of the plurality of flange arms (513). The plunger (41) and the motor housing (51) can be fixedly connected together by a tenon and mortise joint structure formed by matching the first flange (413) and the second flange (513), and the flange plate (414) and the coupling (511) can be synchronously inserted and matched.

8. The laboratory powder dispenser according to claim 7, characterized in that: Multiple magnets (412) are arranged in a circular pattern on the free end face of the plunger (41); multiple magnets (52) are arranged in a circular pattern on one end face of the coupling (511) on the motor housing (51). When magnet one (412) and magnet two (52) are matched one-to-one, and the plug (41) and motor housing (51) are fixedly connected by a tenon and mortise joint structure, magnet one (412) and magnet two (52) can be attracted together by magnetic force.

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