CN219051375U - Chemical reagent extrusion auxiliary tool - Google Patents

Abstract

The utility model relates to the technical field of chemical reagent extrusion auxiliary tools, in particular to a chemical reagent extrusion auxiliary tool which comprises a hollow cylindrical handle, wherein a power bin is arranged at the top of the hollow cylindrical handle, a chemical reagent storage tube is arranged at the bottom of the hollow cylindrical handle, an extrusion mechanism is movably connected in the hollow cylindrical handle and the chemical reagent storage tube together, a connecting end is arranged in the middle of the bottom end of the chemical reagent storage tube, and a conical extrusion tube is detachably connected to the bottom end of the connecting end. This auxiliary tool is extruded to chemical reagent drives the lead screw through planetary reducer and rotates, and when the lead screw rotated and drives extrusion mechanism upward movement, can take out the stickness chemical reagent in the big pail pack to the chemical reagent storage tube in, and when the lead screw rotated and drives extrusion mechanism downwardly moving, can extrude the stickness chemical reagent in the chemical reagent storage tube as required ration, the staff only need set up extrusion volume to in handheld hollow cylindricality handle control toper extrusion tube inserts the container can.

Description

Chemical reagent extrusion auxiliary tool

Technical Field

The utility model relates to the technical field of chemical reagent extrusion auxiliary tools, in particular to a chemical reagent extrusion auxiliary tool.

Background

The chemical reagent is a relative standard substance for chemical research and component analysis, is an important condition for technological progress, is widely used for synthesis, separation, qualitative and quantitative analysis of substances, and can be said to be the eyes of chemical workers, and is kept away from the chemical reagent in daily work of factories, schools, hospitals and research institutions.

The number of chemical reagents is various, the types are complex, the reagents are generally divided into general reagents, basic reagents, high-purity reagents, chromatographic reagents, biochemical reagents, spectrum purity reagents, indicators and the like according to the application, in a laboratory, when the chemical reagents are used, a proper amount of chemical reagents are generally taken out of a large packaging barrel and used for required chemical tests, because the reagents cannot be replaced into the original packaging barrel after being taken out, part of the types of reagents are sticky, such as propylene glycol, aliphatic polyurethane acrylate and other chemical reagents, and the sticky chemical reagents are difficult to quantitatively take in the process of testing after being taken out, so that the consumption of the sticky chemical reagents is often required to be greatly increased, and in view of the fact, a chemical reagent extrusion auxiliary tool is provided.

Disclosure of Invention

The present utility model is directed to an auxiliary tool for extruding chemical reagents, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the chemical reagent extrusion auxiliary tool comprises a hollow cylindrical handle, wherein a power bin is arranged at the top of the hollow cylindrical handle, a chemical reagent storage tube is arranged at the bottom of the hollow cylindrical handle, the hollow cylindrical handle is communicated with the chemical reagent storage tube, and an extrusion mechanism is movably connected in the hollow cylindrical handle and the chemical reagent storage tube together and is used for extracting a viscous chemical reagent from a large packaging barrel into the chemical reagent storage tube and quantitatively extruding the viscous chemical reagent in the chemical reagent storage tube into a test container so as to facilitate a worker to rapidly and accurately acquire the required amount of the viscous chemical reagent;

the extruding mechanism comprises a connecting rod, the top end of the connecting rod is positioned in the hollow cylindrical handle and is fixedly connected with a circular locating plate, the bottom end of the connecting rod is positioned in the chemical reagent storage tube and is fixedly connected with a circular piston, and the viscous chemical reagent in the chemical reagent storage tube is extruded through the circular piston;

the middle part of chemical reagent storage tube bottom is equipped with the link, the bottom of link can be dismantled and be connected with the toper extrusion pipe, and the length of toper extrusion pipe can be changed to in the staff inserts the toper extrusion pipe in the container of different bore, simultaneously, the internal diameter of toper extrusion pipe is very little, because the thick chemical reagent in the toper extrusion pipe is not extruded at last, little interior warp can avoid causing too much extravagant of thick chemical reagent.

Preferably, the middle part of the top of the inner wall of the hollow cylindrical handle is rotationally connected with a screw rod, the middle part of the top of the circular positioning plate is vertically and downwards provided with a threaded connecting groove, the threaded connecting groove downwards extends to a position close to the bottom end inside the connecting rod, the depth of the threaded connecting groove is prolonged, the screw rod is ensured to be capable of fully connecting the connecting rod, and the connecting rod is prevented from being separated from the screw rod;

the screw rod is in threaded connection with the threaded connection groove, and the connecting rod is driven to move up and down through the screw rod.

Preferably, two positioning rods which are arranged in a bilateral symmetry manner are arranged between the top and the bottom of the inner wall of the hollow cylindrical handle, two positioning holes which are arranged in a symmetry manner are formed in the top of the circular positioning plate and close to the outer edge of the circular positioning plate, the two positioning rods respectively penetrate through the two positioning holes to position the circular positioning plate, and the circular positioning plate can only move up and down under the action of the screw rod;

the outer diameter of the circular locating plate is smaller than the inner diameter of the hollow cylindrical handle, so that the circular locating plate can smoothly move up and down, and the air pressure environment in the hollow cylindrical handle is prevented from being changed.

Preferably, a planetary reducer is arranged in the power bin, an output shaft of the planetary reducer passes through the bottom of the inner wall of the power bin and is coaxially connected with the top end of the screw rod, the screw rod is driven by the planetary reducer, the planetary reducer is a mechanism for reducing the revolution number of a motor to a required revolution number by utilizing a speed converter of a gear and obtaining larger torque, and in the reducer mechanism for transmitting power and motion, the planetary reducer belongs to a precision reducer, and the reduction ratio can be accurate to 0.1-0.5 revolution/minute, so that the extrusion auxiliary tool can accurately control the extrusion amount of viscous chemical reagents and effectively reduce the waste of the viscous chemical reagents;

the outer wall of hollow cylindricality handle is equipped with the controller that is used for controlling planetary reducer work, sets up control mainboard and lithium cell in the controller, and the front of controller is provided with display screen and control button, and one side of controller is equipped with the port that charges, through the rotation of controller control planetary reducer drive lead screw to the number of turns of rotation of control lead screw, thereby the displacement volume of control circular piston is the extrusion volume of sticky chemical reagent, realizes quantitative extrusion, and the theory of operation about planetary reducer and controller is not described here again, is well known for the person skilled in the art.

Preferably, the outer wall of the circular piston is tightly attached to the inner wall of the chemical reagent storage tube, and the principle is the same as that of the piston in the injector, so that the circular piston can extract and extrude viscous chemical reagents, an auxiliary piston is arranged on the outer wall of the connecting rod and close to the bottom end, the outer wall of the auxiliary piston is tightly attached to the inner wall of the chemical reagent storage tube, and the moving stability of the extruding mechanism is improved;

the outer wall of auxiliary piston vertically has seted up two ventilation slots that are symmetrical arrangement, avoids influencing the circulation of circular piston top air, the gas pocket has been seted up to the outer wall of chemical reagent storage tube and the position that is close to the top, works as the top of auxiliary piston offsets with the top of chemical reagent storage tube inner wall, the gas pocket is located between circular piston and the auxiliary piston, and when circular piston moved, the atmospheric pressure that keeps circular piston top and external atmospheric pressure balance, ensures that circular piston can reciprocate smoothly.

Preferably, the outer wall of the chemical reagent storage tube is provided with capacity scales for measuring extrusion capacity of the viscous chemical reagent, the chemical reagent storage tube is made of transparent anti-corrosion plastic materials, the extrusion amount and the residual amount of the viscous chemical reagent can be conveniently checked by workers, and the viscous chemical reagent with required amount can be conveniently extracted from the large packaging barrel by workers.

Preferably, the bottom of the connecting end and the position at the inner edge are provided with threaded convex rings, and the threaded convex rings are in threaded connection with the top of the inner wall of the tapered extrusion pipe, so that the tapered extrusion pipe can be conveniently replaced and disassembled.

Preferably, the outer wall of the conical extrusion pipe is provided with a rubber ring near the top, the outer side of the conical extrusion pipe is sleeved with a sealing sleeve, the inner wall of the sealing sleeve is provided with an anti-falling groove near the top, and when the sealing sleeve seals the conical extrusion pipe, the rubber ring is clamped in the anti-falling groove, so that the sealing sleeve is sleeved on the outer wall of the conical extrusion pipe under the action of no external force, and the sealing effect is achieved on the conical extrusion pipe.

Compared with the prior art, the utility model has the beneficial effects that:

1. this auxiliary tool is extruded to chemical reagent drives the lead screw through the planetary reducer who sets up and rotates, when the lead screw rotates and drives extrusion mechanism upward movement, can take out the stickness chemical reagent in the big pail pack to the chemical reagent storage tube in, when the lead screw rotates and drives extrusion mechanism downwardly moving, can extrude the stickness chemical reagent in the chemical reagent storage tube as required ration, the staff only need set up extrusion volume to in handheld hollow cylindricality handle control toper extrusion tube inserts the container can.

2. The conical extrusion pipe is sealed by the sealing sleeve, so that the conical extrusion pipe can be sealed after the viscous chemical reagent is used once in the chemical experiment process, and the unused viscous chemical reagent can be prevented from being polluted after the sealing is carried out for a plurality of times in the general chemical experiment.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

FIG. 3 is a schematic view of the internal structure of the hollow cylindrical handle of the present utility model;

FIG. 4 is a schematic view of an extrusion mechanism according to the present utility model;

fig. 5 is a schematic diagram showing the assembly structure of the connecting end, the tapered extrusion pipe and the sealing sleeve in the present utility model.

In the figure: the device comprises a hollow cylindrical handle 1, a positioning rod 10, a chemical reagent storage tube 2, an air hole 20, a connecting end 21, a threaded convex ring 210, a capacity scale 22, an extrusion mechanism 3, a connecting rod 30, a circular positioning plate 31, a positioning hole 310, a threaded connecting groove 311, a circular piston 32, an auxiliary piston 33, an air vent groove 330, a screw rod 4, a conical extrusion tube 5, a rubber ring 50, a sealing sleeve 6, an anti-drop groove 60, a power bin 7, a planetary reducer 8 and a controller 9.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

the chemical reagent extrusion auxiliary tool comprises a hollow cylindrical handle 1, wherein a power bin 7 is arranged at the top of the hollow cylindrical handle 1, a chemical reagent storage tube 2 is arranged at the bottom of the hollow cylindrical handle 1, the hollow cylindrical handle 1 is communicated with the chemical reagent storage tube 2, an extrusion mechanism 3 is movably connected in the hollow cylindrical handle 1 and the chemical reagent storage tube 2 together, and is used for extracting a viscous chemical reagent from a large packaging barrel into the chemical reagent storage tube 2 and quantitatively extruding the viscous chemical reagent in the chemical reagent storage tube 2 into a test container so as to facilitate a worker to quickly and accurately acquire a required amount of the viscous chemical reagent;

the extruding mechanism 3 comprises a connecting rod 30, the top end of the connecting rod 30 is positioned in the hollow cylindrical handle 1 and is fixedly connected with a circular positioning plate 31, the bottom end of the connecting rod 30 is positioned in the chemical reagent storage tube 2 and is fixedly connected with a circular piston 32, and viscous chemical reagents in the chemical reagent storage tube 2 are extruded through the circular piston 32;

the middle part of chemical reagent storage tube 2 bottom is equipped with link 21, and the bottom of link 21 can be dismantled and be connected with toper extrusion tube 5, and the length of toper extrusion tube 5 can be changed to in the staff inserts the container of different bore with toper extrusion tube 5, simultaneously, the internal diameter of toper extrusion tube 5 is very little, because the thick chemical reagent in the toper extrusion tube 5 is not crowded out at last, and little internal warp can avoid causing too much extravagant of thick chemical reagent.

In the embodiment, the middle part of the top of the inner wall of the hollow cylindrical handle 1 is rotationally connected with the screw rod 4, the middle part of the top of the circular positioning plate 31 is vertically and downwards provided with the threaded connecting groove 311, the threaded connecting groove 311 downwards extends to a position close to the bottom end inside the connecting rod 30, the depth of the threaded connecting groove 311 is prolonged, the screw rod 4 is ensured to fully connect the connecting rod 30, and the connecting rod 30 is prevented from being separated from the screw rod 4;

the screw rod 4 is in threaded connection with the threaded connection groove 311, and the connecting rod 30 is driven to move up and down through the screw rod 4.

Specifically, two positioning rods 10 which are arranged in a bilateral symmetry manner are arranged between the top and the bottom of the inner wall of the hollow cylindrical handle 1, two positioning holes 310 which are arranged in a symmetry manner are formed in the top of the circular positioning plate 31 and close to the outer edge, the two positioning rods 10 respectively penetrate through the two positioning holes 310 to position the circular positioning plate 31, and the circular positioning plate 31 can only move up and down under the action of the screw rod 4;

the outer diameter of the circular locating plate 31 is smaller than the inner diameter of the hollow cylindrical handle 1, so that the circular locating plate 31 can smoothly move up and down, and the air pressure environment in the hollow cylindrical handle 1 is prevented from being changed.

Further, a planetary reducer 8 is arranged in the power bin 7, an output shaft of the planetary reducer 8 passes through the bottom of the inner wall of the power bin 7 and is coaxially connected with the top end of the screw rod 4, the screw rod 4 is driven by the planetary reducer 8, the planetary reducer 8 is a mechanism for reducing the revolution number of a motor to a required revolution number by utilizing a speed converter of a gear and obtaining larger torque, and in a reducer mechanism for transmitting power and motion, the planetary reducer belongs to a precise reducer, and the reduction ratio can be precisely 0.1-0.5 revolution/min, so that the extrusion auxiliary tool can precisely control the extrusion amount of a viscous chemical reagent and effectively reduce the waste of the viscous chemical reagent;

the outer wall of hollow cylindricality handle 1 is equipped with the controller 9 that is used for controlling the work of planetary reducer 8, sets up control mainboard and lithium cell in the controller 9, and the front of controller 9 is provided with display screen and control button, and one side of controller 9 is equipped with the port that charges, drives lead screw 4 through the control of controller 9 control planetary reducer 8 to rotate, and control the number of turns of turning of lead screw 4, thereby the displacement of control circular piston 32 is the extrusion volume of sticky chemical reagent, realizes quantitative extrusion, and the theory of operation about planetary reducer 8 and controller 9 is not repeated here, is as is well known in the art.

Further, the outer wall of the circular piston 32 is tightly attached to the inner wall of the chemical reagent storage tube 2, and the principle is the same as that of a piston in the injector, so that the circular piston 32 can extract and extrude viscous chemical reagents, an auxiliary piston 33 is arranged on the outer wall of the connecting rod 30 and close to the bottom end, the outer wall of the auxiliary piston 33 is tightly attached to the inner wall of the chemical reagent storage tube 2, and the moving stability of the extruding mechanism 3 is improved;

two vent grooves 330 which are symmetrically distributed are vertically formed in the outer wall of the auxiliary piston 33, the air circulation above the circular piston 32 is prevented from being influenced, the air holes 20 are formed in the outer wall of the chemical reagent storage tube 2 and close to the top, when the top of the auxiliary piston 33 is propped against the top of the inner wall of the chemical reagent storage tube 2, the air holes 20 are located between the circular piston 32 and the auxiliary piston 33, and when the circular piston 32 moves, the air pressure above the circular piston 32 is kept in balance with the external air pressure, so that the circular piston 32 can move up and down smoothly.

Further, the outer wall of the chemical reagent storage tube 2 is provided with a capacity scale 22 for measuring the extrusion capacity of the viscous chemical reagent, the chemical reagent storage tube 2 is made of transparent anti-corrosion plastic materials, the extrusion amount and the residual amount of the viscous chemical reagent can be conveniently checked by workers, and the viscous chemical reagent with required amount can be conveniently extracted from the large packaging barrel by workers.

Further, a threaded collar 210 is disposed at the bottom end of the connection end 21 and at the inner edge, and the threaded collar 210 is screwed on the top of the inner wall of the tapered extrusion tube 5, so as to facilitate replacement and disassembly of the tapered extrusion tube 5.

Further, the outer wall of the conical extrusion pipe 5 and the position close to the top are provided with the rubber ring 50, the outer side of the conical extrusion pipe 5 is sleeved with the sealing sleeve 6, the inner wall of the sealing sleeve 6 and the position close to the top are provided with the anti-falling groove 60, when the sealing sleeve 6 seals the conical extrusion pipe 5, the rubber ring 50 is clamped in the anti-falling groove 60, so that the sealing sleeve 6 is sleeved on the outer wall of the conical extrusion pipe 5 under the action of no external force, and the sealing effect is achieved on the conical extrusion pipe 5.

When the auxiliary tool for extruding the chemical reagent is used, when a worker needs to take the viscous chemical reagent, the worker opens a large packaging barrel of the viscous chemical reagent, then inserts the conical extruding pipe 5 into the viscous chemical reagent, then presses a control button on the controller 9 to enable the planetary reducer 8 to drive the screw rod 4 to reversely rotate so as to drive the connecting rod 30 to move upwards, the round piston 32 moves upwards along with the connecting rod 30, negative pressure is formed in the chemical reagent storage pipe 2, so that the viscous chemical reagent is sucked into the chemical reagent storage pipe 2, and after the viscous chemical reagent is sucked into the required viscous chemical reagent, the worker seals the large packaging barrel filled with the viscous chemical reagent; when the staff needs to use the stickness chemical reagent in the chemical reagent storage tube 2 to carry out the experiment, the staff passes through the controller 9 and sets for required capacity, then insert the bottom of toper extrusion tube 5 in the experimental vessel, and start planetary reducer 8, drive lead screw 4 forward rotation, with driving connecting rod 30 and move downwards, circular piston 32 moves downwards along with connecting rod 30, extrude the stickness chemical reagent in the chemical reagent storage tube 2 downwards, until the required capacity of extruding the staff setting, afterwards, the staff overlaps seal cover 6 in the outside of toper extrusion tube 5, seal toper extrusion tube 5, avoid unused stickness chemical reagent to pollute.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (8)

1. A chemical agent extrusion aid, characterized in that:

the novel chemical reagent storage device comprises a hollow cylindrical handle (1), wherein a power bin (7) is arranged at the top of the hollow cylindrical handle (1), a chemical reagent storage tube (2) is arranged at the bottom of the hollow cylindrical handle (1), the hollow cylindrical handle (1) is communicated with the chemical reagent storage tube (2), and an extrusion mechanism (3) is jointly and movably connected in the hollow cylindrical handle (1) and the chemical reagent storage tube (2);

the extruding mechanism (3) comprises a connecting rod (30), the top end of the connecting rod (30) is located in the hollow cylindrical handle (1) and is fixedly connected with a circular locating plate (31), the bottom end of the connecting rod (30) is located in the chemical reagent storage tube (2) and is fixedly connected with a circular piston (32), the middle of the bottom end of the chemical reagent storage tube (2) is provided with a connecting end (21), and the bottom end of the connecting end (21) is detachably connected with a conical extruding tube (5).

2. The chemical agent extrusion aid according to claim 1, wherein: the middle part at the top of the inner wall of the hollow cylindrical handle (1) is rotationally connected with a screw rod (4), a threaded connecting groove (311) is vertically and downwards formed in the middle part at the top of the circular locating plate (31), the threaded connecting groove (311) downwards extends to a position close to the bottom end inside the connecting rod (30), and the screw rod (4) is in threaded connection with the threaded connecting groove (311).

3. The chemical agent extrusion aid according to claim 1, wherein: two locating rods (10) which are arranged in a bilateral symmetry mode are arranged between the top and the bottom of the inner wall of the hollow cylindrical handle (1), two locating holes (310) which are arranged in a symmetry mode are formed in the positions, close to the outer edge, of the top of the circular locating plate (31), the two locating rods (10) penetrate through the two locating holes (310) respectively, and the outer diameter of the circular locating plate (31) is smaller than the inner diameter of the hollow cylindrical handle (1).

4. The chemical agent extrusion aid according to claim 2, wherein: the planetary reducer is arranged in the power bin (7), an output shaft of the planetary reducer (8) penetrates through the bottom of the inner wall of the power bin (7) and is coaxially connected with the top end of the screw rod (4), and a controller (9) for controlling the planetary reducer (8) to work is arranged on the outer wall of the hollow cylindrical handle (1).

5. The chemical agent extrusion aid according to claim 1, wherein: the outer wall of circular piston (32) is closely laminated with the inner wall of chemical reagent storage tube (2), the outer wall of connecting rod (30) and the position that is close to the bottom are equipped with auxiliary piston (33), the outer wall of auxiliary piston (33) is closely laminated with the inner wall of chemical reagent storage tube (2), two ventilation slots (330) that are symmetrical arrangement have been vertically seted up to the outer wall of auxiliary piston (33), gas pocket (20) have been seted up in the outer wall of chemical reagent storage tube (2) and the position that is close to the top, works as when the top of auxiliary piston (33) offsets with the top of chemical reagent storage tube (2) inner wall, gas pocket (20) are located between circular piston (32) and auxiliary piston (33).

6. The chemical agent extrusion aid according to claim 1, wherein: the outer wall of the chemical reagent storage tube (2) is provided with a capacity scale (22) for measuring the extrusion capacity of the viscous chemical reagent.

7. The chemical agent extrusion aid according to claim 1, wherein: the bottom end of the connecting end (21) and the position at the inner edge are provided with threaded convex rings (210), and the threaded convex rings (210) are in threaded connection with the top of the inner wall of the conical extrusion pipe (5).

8. The chemical agent extrusion aid according to claim 1, wherein: the outer wall of toper extrusion pipe (5) and be close to the position at top be equipped with rubber ring (50), the outside cover of toper extrusion pipe (5) is equipped with seal cover (6), anticreep groove (60) have been seted up to the inner wall of seal cover (6) and the position near the top, works as seal cover (6) are sealed to toper extrusion pipe (5), rubber ring (50) card is in anticreep groove (60).

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