CN214096773U

CN214096773U - Accurate sampling device is used in preparation of chemical reagent auxiliary agent

Info

Publication number: CN214096773U
Application number: CN202121604686.7U
Authority: CN
Inventors: 杨金金
Original assignee: Shandong Keao New Material Co ltd
Current assignee: Shandong Keao New Material Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-08-31
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses an accurate sampling device is used in chemical reagent auxiliary agent preparation relates to sampling device's technical field, including the sampler barrel, the one end of sampler barrel is provided with the sampling syringe needle, the sampler barrel other end is provided with the limiting plate, set up the pull pole in the sampler barrel, the one end that the pull pole is located the sampler barrel is provided with the piston, the pull pole other end is provided with the handle, the slip of pull pole outer wall is provided with the controlling means who is used for controlling pull pole pull length. The utility model discloses, lock in the position of pull pole through controlling means, guarantee that the liquid addition equals at every turn to all need observe injection outer wall scale mark when avoiding taking a sample at every turn, lead to the sample inefficiency, and everybody observation angle's difference, the volume that leads to adding the auxiliary agent also has the deviation, lead to the addition different.

Description

Accurate sampling device is used in preparation of chemical reagent auxiliary agent

Technical Field

The utility model relates to a sampling device's technical field especially relates to preparation of chemical reagent auxiliary agent is with accurate sampling device.

Background

Auxiliary agents (excipients) are defined in medicine as excipients and additives used in the production of drugs and the formulation of prescriptions, i.e. the general term for all materials except the main pharmaceutical active ingredient is an important component of pharmaceutical preparations. In industrial production, auxiliary chemicals are added to improve the production process, to improve the quality and yield of the product, or to impart a specific application property to the product. Also known as additives. However, as an important component of the product matrix, a large-dose supplement which has great influence on the form, structure and performance of the product is not generally classified into the category of the auxiliary agent.

In the preparation of the auxiliary agent, multiple times of quantitative sampling is sometimes needed to be added into the chemical reagent, and the scale marks on the outer wall of the injection agent need to be observed during each sampling, so that the sampling efficiency is low, and meanwhile, the amount of the added auxiliary agent is also deviated according to the difference of each observation angle, so that the addition amount is different.

Disclosure of Invention

The utility model aims to provide a: in order to solve the problems, a precise sampling device for preparing a chemical reagent auxiliary is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the sampling device comprises a sampling barrel, wherein a sampling needle head is arranged at one end of the sampling barrel, a limiting plate is arranged at the other end of the sampling barrel, a pulling rod is arranged in the sampling barrel, a piston is arranged at one end of the pulling rod, which is positioned in the sampling barrel, a handle is arranged at the other end of the pulling rod, and a control device for controlling the pulling length of the pulling rod is arranged on the outer wall of the pulling rod in a sliding manner;

the control device comprises a baffle plate on the outer wall of the pull rod, a cavity is formed in the baffle plate, a limiting ring is arranged in the cavity in a sliding mode, a reset spring is arranged on one side of the limiting ring, a rack is arranged on one side, close to the reset spring, of the inner ring of the limiting ring, and a tooth socket matched with the rack is formed in the outer wall of the pull rod;

the middle position of limiting plate is seted up the recess that can hold controlling means, one side of recess is provided with the unlocking device who is used for unblock controlling means.

Further, unlocking device includes the unlocking lever that slides the setting with the limiting plate, the one end that reset spring was kept away from to the spacing ring is provided with the cooperation and unlocks the pressing block that the pole used, press the pressing block cross-section to be the rectangle, the one end of baffle is seted up the cooperation and is pressed the rectangle through-hole that the pressing block used, the intermediate position of unlocking lever is provided with the compression spring that outwards resets.

Furthermore, the teeth of the rack are arranged in a rectangular shape, and one end, close to the tooth socket, of each tooth is arranged in an arc shape.

Further, the cross section of the drawing rod is rectangular.

Further, one side of a sampling tube is provided with a transparent observation window, and the outer wall of the observation window is provided with scale marks.

Furthermore, the unlocking rod is a rectangular rod, the cross section of the unlocking rod is equal to the cross section of the rectangular through hole in the baffle in size, and a chamfer is arranged at one end, close to the unlocking control device, of the unlocking rod.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses in, lock in the position of pull pole through controlling means, guarantee that the liquid addition equals at every turn to all need observe injection outer wall scale mark when avoiding taking a sample at every turn, lead to the sample inefficiency, and everybody observation angle's difference, the volume that leads to adding the auxiliary agent also has the deviation, lead to the addition different.

Drawings

FIG. 1 is an external view of a precise sampling device for preparing chemical reagent additives according to the present invention;

fig. 2 is a schematic view of an unlocking device of the precise sampling device for preparing chemical reagent auxiliary provided by the utility model;

FIG. 3 is a schematic view of a control device of the precise sampling device for preparing chemical reagent additives according to the present invention;

fig. 4 is a schematic view of a rack of the precise sampling device for preparing chemical reagent auxiliary provided by the present invention;

fig. 5 is a cross-sectional view of a limiting plate of the precise sampling device for preparing chemical reagent auxiliary provided by the utility model;

FIG. 6 is a schematic view showing the state that the unlocking rod of the precise sampling device for preparing chemical reagent auxiliary agent of the present invention enters the inside of the baffle;

fig. 7 is an enlarged view of the position B in fig. 6 of the precise sampling device for preparing chemical reagent auxiliary according to the present invention.

In the figure: 1. a sampling tube; 2. a pull rod; 3. a limiting plate; 4. an unlocking device; 401. an unlocking lever; 402. a compression spring; 5. a control device; 501. a baffle plate; 502. a limiting ring; 5021. a rack; 5022. a pressing block; 503. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-7, the accurate sampling device for preparing the chemical reagent auxiliary agent comprises a sampling cylinder 1, wherein a sampling needle head is arranged at one end of the sampling cylinder 1, a limiting plate 3 is arranged at the other end of the sampling cylinder 1, a pull rod 2 is arranged in the sampling cylinder 1, a piston is arranged at one end of the pull rod 2, which is positioned in the sampling cylinder 1, a handle is arranged at the other end of the pull rod 2, and a control device 5 for controlling the pull length of the pull rod 2 is arranged on the outer wall of the pull rod 2 in a sliding manner;

the control device 5 comprises a baffle 501 on the outer wall of the drawing rod 2, a cavity is formed in the baffle 501, a limit ring 502 is arranged in the cavity in a sliding mode, a reset spring 503 is arranged on one side of the limit ring 502, a rack 5021 is arranged on one side, close to the reset spring 503, of the inner ring of the limit ring 502, and a tooth socket matched with the rack 5021 is formed in the outer wall of the drawing rod 2;

a groove capable of containing the control device 5 is formed in the middle of the limiting plate 3, and an unlocking device 4 used for unlocking the control device 5 is arranged on one side of the groove; the length that can pull out of rack 5021 control pull pole 2 through spacing ring 502 one side, the distance through pull pole 2 pull out adjusts piston displacement, and then the liquid volume of getting of convenient control auxiliary agent avoids the sample volume at every turn to deviate, and tooth's socket on the 2 outer walls of pull pole and rack 5021's tooth pitch can be adjusted according to actual conditions.

Further, the unlocking device 4 comprises an unlocking rod 401 arranged in a sliding manner with the limiting plate 3, one end of the limiting ring 502, which is far away from the return spring 503, is provided with a pressing block 5022 used in cooperation with the unlocking rod 401, the cross section of the pressing block 5022 is rectangular, one end of the baffle 501 is provided with a rectangular through hole used in cooperation with the pressing block 5022, and the middle position of the unlocking rod 401 is provided with a compression spring 402 which returns outwards; the control device 5 is unlocked by pressing the unlocking lever 401, thereby facilitating the use of the worker.

Furthermore, the teeth of the rack 5021 are rectangular, and one end of the teeth close to the tooth socket is arc-shaped; when the rack 5021 resets towards the tooth socket on the outer wall of the pull rod 2, one end of the teeth is arranged in an arc shape so that the teeth can conveniently enter the tooth socket on the outer wall of the pull rod 2; when the drawing rod 2 is pulled outwards, the teeth arranged in a rectangular shape can better prevent the rack 5021 from slipping from the tooth sockets.

Further, the cross section of the drawing rod 2 is rectangular, and the drawing rod 2 is prevented from rotating due to the rectangular arrangement, so that the pressing block 5022 can be well controlled, the deviation of the pressing block 5022 is avoided, and the unlocking rod 401 cannot press the pressing block 5022.

Furthermore, one side of the sampling tube 1 is provided with a transparent observation window, and the outer wall of the observation window is provided with scale marks.

Further, the unlocking rod 401 is a rectangular rod, the section of the unlocking rod 401 is equal to the section of the rectangular through hole in the baffle 501 in size, a chamfer is arranged at one end, close to the unlocking control device 5, of the unlocking rod 401, and the unlocking rod 401 can conveniently enter the rectangular through hole in the baffle 501 through the chamfer, so that after the unlocking rod 401 is pressed, the unlocking rod 401 can extrude the pressing block 5022 to be inserted into the rectangular through hole in the baffle 501; because the section of the unlocking rod 401 is equal to the section of the rectangular through hole in the baffle 501 in size, the section of the unlocking rod 401, which enters the rectangular through hole in the baffle 501 and extends into the baffle 501, can temporarily support the control device 5; since the lock release lever 401 is a rectangular lever, the lock release lever 401 can restrict the inclination of the flapper 501.

The working principle is as follows:

unlocking: the sampling tube 1 is held by a hand, then the thumb presses the unlocking rod 401 all the time, the unlocking rod 401 presses the pressing block 5022, the unlocking rod 401 in the unlocking rod 401 enters the baffle 501, at the moment, a section of the unlocking rod 401 extending into the baffle 501 can play a role in temporarily supporting the control device 5, the pressing block 5022 pushes the limiting ring 502 to move towards the reset spring 503, the rack 5021 on the inner wall of the limiting ring 502 synchronously moves, so that teeth of the rack 5021 are separated from tooth grooves on the outer wall of the drawing rod 2, at the moment, the drawing rod 2 can move randomly, the position of the drawing rod 2 is moved as required, and after the adjustment is completed, the unlocking rod 401 is released;

quantification: after unlocking, controlling the outward movement distance of the pull rod 2, and when the control device 5 is closer to the piston of the pull rod 2, the pull rod 2 can be pulled out for a longer length, and further the piston displacement distance is longer, and the piston is farther from the sampling needle at one end of the sampling cylinder 1, so that more auxiliaries are extracted, and therefore the sampling amount of the auxiliaries can be changed by moving the position of the control device 5 on the outer wall of the pull rod 2, and quantitative sampling of the auxiliaries can be realized;

resetting: after the unlocking rod 401 is loosened, the unlocking rod 401 resets towards one end far away from the control device 5 under the action of the compression spring 402, so that the unlocking rod 401 is completely separated from the baffle 501, the limiting ring 502 is in sliding connection with the baffle 501, so that the limiting ring 502 resets towards the unlocking device 4 under the action of the reset spring 503, the limiting ring 502 drives the rack 5021 to reset towards the tooth socket on the outer wall of the pull rod 2, and the teeth in the rack 5021 conveniently enter the tooth socket on the outer wall of the pull rod 2 because one end of the teeth in the rack 5021 is arranged in an arc shape, so that the teeth in the rack 5021 enter the tooth socket on the outer wall of the pull rod 2;

use of: firstly, unlocking is carried out, the position of the control device 5 on the outer wall of the pull rod 2 is adjusted as required, after the adjustment is finished, the unlocking rod 401 is loosened, the unlocking rod 401 resets under the action of the compression spring 402 and exits the baffle 501, meanwhile, the limiting ring 502 resets under the action of the reset spring 503, teeth of the rack 5021 enter tooth sockets on the outer wall of the pull rod 2, and at the moment, the pull rod 2 pushes the needle head until the needle head cannot be pushed; then the needle head is inserted into the auxiliary agent, and the pull rod 2 is pulled towards one end far away from the needle head until the control device 5 enters the groove at the lower end of the limiting plate 3, at the moment, the pull rod 2 cannot be pulled outwards, and the sampling work is finished at the moment; place the sampling device who accomplishes the sample on waiting to add the medicament of auxiliary agent, pull pole 2 promotes to syringe needle department this moment, extrude the liquid of helping in the sampling device, accomplish the interpolation of liquid medicine, thereby during later sample, only 5 positions of unmovable controlling means, just can guarantee to help the liquid addition at every turn and equal, thereby all need observe injection outer wall scale mark when avoiding sample at every turn, lead to the sampling inefficiency, and because everyone observation angle's difference, the volume that leads to adding the auxiliary agent also has deviation, lead to the addition to be different.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The accurate sampling device for preparing the chemical reagent auxiliary comprises a sampling cylinder (1), wherein a sampling needle head is arranged at one end of the sampling cylinder (1), a limiting plate (3) is arranged at the other end of the sampling cylinder (1), a pull rod (2) is arranged in the sampling cylinder (1), a piston is arranged at one end, positioned in the sampling cylinder (1), of the pull rod (2), a handle is arranged at the other end of the pull rod (2), and the accurate sampling device is characterized in that a control device (5) for controlling the pull length of the pull rod (2) is arranged on the outer wall of the pull rod (2) in a sliding mode;

the control device (5) comprises a baffle (501) on the outer wall of the drawing rod (2), a cavity is formed in the baffle (501), a limit ring (502) is arranged in the cavity in a sliding mode, a reset spring (503) is arranged on one side of the limit ring (502), a rack (5021) is arranged on one side, close to the reset spring (503), of an inner ring of the limit ring (502), and a tooth socket matched with the rack (5021) for use is formed in the outer wall of the drawing rod (2);

the middle position of limiting plate (3) is seted up and is held the recess of controlling means (5), one side of recess is provided with unlocking device (4) that are used for unblock controlling means (5).

2. The accurate sampling device for preparing the chemical reagent auxiliary according to claim 1, wherein the unlocking device (4) comprises an unlocking rod (401) slidably arranged with the limiting plate (3), one end of the limiting ring (502) far away from the reset spring (503) is provided with a pressing block (5022) used in cooperation with the unlocking rod (401), the cross section of the pressing block (5022) is rectangular, one end of the baffle plate (501) is provided with a rectangular through hole used in cooperation with the pressing block (5022), and a compression spring (402) which resets outwards is arranged in the middle of the unlocking rod (401).

3. The precise sampling device for the preparation of chemical reagent auxiliary according to claim 1, wherein the teeth of the rack (5021) are arranged in a rectangular shape, and one end of the teeth close to the tooth socket is arranged in an arc shape.

4. The precise sampling device for the preparation of chemical reagent auxiliary according to claim 1, characterized in that the drawing rod (2) has a rectangular cross section.

5. The precise sampling device for preparing the chemical reagent assistant according to claim 1, wherein a transparent observation window is arranged on one side of the sampling cylinder (1), and the outer wall of the observation window is provided with scale marks.

6. The precise sampling device for preparing the chemical reagent auxiliary according to claim 2, wherein the unlocking rod (401) is a rectangular rod, the cross section of the unlocking rod (401) is equal to the cross section of the rectangular through hole in the baffle plate (501), and one end of the unlocking rod (401) close to the unlocking control device (5) is provided with a chamfer.