Rapid sample injection device for specific surface and aperture analyzer

Abstract

The utility model discloses a specific surface area and aperture analyzer's sample fast sample introduction device relates to chemical instrument technical field, including sleeve and cylindrical sample introduction piece that is connected in sleeve, the one side of sleeve inner wall is equipped with the chute, the bottom of sleeve inner wall is equipped with the square groove, the outer wall of sleeve is equipped with the round hole, and the cylindrical sample introduction piece is equipped with the round hole. A first spring is fixedly connected to the inner wall of the sleeve, a sliding block is fixedly connected to the bottom of the cylindrical sample injection piece, an adjusting rod is fixedly connected to the side, close to the circular hole, of the cylindrical sample injection piece, a limiting block is fixedly connected to the side, away from the cylindrical sample injection piece, of the adjusting rod, and a pull ring is fixedly connected to the side, away from the adjusting rod, of the limiting block. The linear movement of the sliding block and the sliding groove is used for carrying out movement adjustment on the cylindrical sample injection piece, and when the cylindrical sample injection piece moves into the sleeve, the problems that the sample injection process is long in time consumption and the working efficiency is reduced due to the fact that the cylindrical sample injection piece is raised and scattered due to environment airflow or hand vibration of an experimenter are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical instruments, in particular to a rapid sample injection device for a specific surface area and pore size analyzer. Background Art

[0002] A surface area and pore size analyzer is an important instrument used to measure surface properties of solid materials (especially powders and porous materials), such as specific surface area, pore size distribution, and porosity. Based on gas adsorption theory, it measures the adsorption of specific gases by a sample at ultra-low temperatures (such as liquid nitrogen at 77K) to estimate its specific surface area and pore size distribution. This technology has widespread applications in fields such as materials science, environmental science, chemical engineering, and petroleum, and is a key tool for characterizing material surface properties.

[0003] Chinese patent CN207908313U discloses a rapid sample injector for a specific surface and pore size analyzer, comprising a disposable sample conduit and a sample chamber. The outer diameter of the disposable sample conduit is smaller than the inner diameter of the sample tube; the sample chamber comprises a boat-shaped injection portion and a funnel neck tube; the upper end of the boat-shaped injection portion is open, and the interior of the boat-shaped injection portion is hollow to form a sample lumen for accommodating the sample; the funnel neck tube is mounted on the outer wall of the boat-shaped injection portion and communicates with the sample lumen; the boat-shaped injection portion is connected to the disposable sample conduit via the funnel neck tube, and has the advantages of fast injection speed, preventing the sample from contacting the neck of the sample tube during injection, and improving test accuracy. When sampling light powders and fine particles, this structure is easily blown away and dispersed by ambient airflow or hand tremors of the experimenter, resulting in a time-consuming injection process, reduced work efficiency, and difficulty meeting user needs.

[0004] Therefore, in order to solve such problems, we proposed a rapid sample injection device for surface area and pore size analyzers. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when sampling light powders and tiny particles, they are easily blown away and scattered due to ambient airflow or hand tremors of the experimenter, resulting in a long sampling process, reduced work efficiency, and difficulty in meeting the user's usage needs. A rapid sampling device for surface area and pore size analyzers is proposed.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a rapid sample injection device for a specific surface area and pore size analyzer, comprising a sleeve and a cylindrical injection member movably connected to the interior of the sleeve, a slide groove being provided on one side of the inner wall of the sleeve, a square groove being provided on the bottom of the inner wall of the sleeve, a circular hole being provided on the outer wall of the sleeve, and a first spring being fixedly connected to the inner wall of the sleeve;

[0007] The bottom of the cylindrical injection piece is fixedly connected with a slider, the side of the cylindrical injection piece close to the circular hole is fixedly connected with an adjusting rod, the side of the adjusting rod away from the cylindrical injection piece is fixedly connected with a limiting block, and the side of the limiting block away from the adjusting rod is fixedly connected with a pull ring.

[0008] Preferably, a discharge pipe is fixedly connected in the square groove, an installation groove is provided on the outer wall surface of one side of the discharge pipe, and locking grooves are provided on the inner walls on both sides of the deep part of the installation groove. A valve is movably connected to the discharge pipe, and connecting plates are fixedly connected at both ends of the valve, and locking blocks are fixedly connected to the outer wall of the connecting plate.

[0009] Preferably, a damping rod is fixedly connected to the inner wall of the connecting plate, and a second spring is movably sleeved on the outer wall of the damping rod.

[0010] Preferably, a sliding groove is provided on one side of the inner wall of the sleeve, and a sliding block is fixedly connected to the bottom of the cylindrical sample injection component.

[0011] Preferably, a circular hole is formed on the outer wall of the sleeve, and an adjusting rod is fixedly connected to a side of the cylindrical injection member close to the circular hole.

[0012] Preferably, a discharge pipe is fixedly connected in the square groove, a locking groove is opened on the inner walls on both sides of the deep part of the installation groove, a valve is movably connected to the discharge pipe, and a locking block is fixedly connected to the outer wall of the connecting plate.

[0013] The utility model has the following beneficial effects:

[0014] In the utility model, the linear movement of the slider and the slide groove is used to adjust the movement of the cylindrical sample injection part. When the cylindrical sample injection part moves into the sleeve, it avoids the problem of being lifted up and scattered due to ambient airflow or hand tremors of the experimenter, which leads to a long injection process and reduced work efficiency. A first spring is provided to buffer the movement of the cylindrical sample injection part, preventing the extraction action from being too large, which causes the powder to vibrate and scatter. The structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional schematic diagram of a sample rapid injection device for a specific surface area and pore size analyzer proposed by the present invention;

[0016] Figure 2 This is a three-dimensional exploded view of a sample rapid injection device for a specific surface area and pore size analyzer proposed by the present invention;

[0017] Figure 3 This is a three-dimensional exploded view of the discharge structure of a sample rapid injection device for a specific surface area and pore size analyzer proposed in the utility model;

[0018] Figure 4This is a three-dimensional exploded schematic diagram of a sleeve of a sample rapid injection device for a specific surface area and pore size analyzer proposed in the present invention;

[0019] Figure 5 The utility model provides a top cross-sectional schematic diagram of a discharge pipe of a sample rapid injection device for a specific surface area and pore size analyzer.

[0020] Legend:

[0021] 1. Sleeve; 11. Slide; 12. Square groove; 13. Round hole; 14. First spring; 2. Cylindrical sample feeder; 21. Slider; 22. Adjusting rod; 23. Limit block; 24. Pull ring; 3. Discharge pipe; 31. Mounting groove; 32. Engaging groove; 4. Valve; 41. Connecting plate; 42. Engaging block; 5. Damping rod; 51. Second spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limiting the present invention. The terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections, indirect connections through an intermediate medium, or internal connections between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Reference Figure 1-5The utility model provides an embodiment: a sample rapid injection device for a specific surface and pore size analyzer, comprising a sleeve 1 and a cylindrical injection member 2 movably connected to the inside of the sleeve 1, the cylindrical injection member 2 is used for injection, a slide groove 11 is provided on one side of the inner wall of the sleeve 1, the slide groove 11 is used to limit the installation of a slider 21, a square groove 12 is provided at the bottom of the inner wall of the sleeve 1, the square groove 12 is used to install a discharge pipe 3, a circular hole 13 is provided on the outer wall of the sleeve 1, the circular hole 13 is used to install an adjusting rod 22, a first spring 14 is fixedly connected to the inner wall of the sleeve 1, and the first spring 14 is used for buffering;

[0025] A slider 21 is fixedly connected to the bottom of the cylindrical sample injection part 2, and the function of the slider 21 is to buffer. An adjusting rod 22 is fixedly connected to the side of the cylindrical sample injection part 2 close to the circular hole 13, and the function of the adjusting rod 22 is to transmit and fix a limit block 23. The side of the adjusting rod 22 away from the cylindrical sample injection part 2 is fixedly connected to the limit block 23, and the function of the limit block 23 is to limit the movement of the adjusting rod 22. A pull ring 24 is fixedly connected to the side of the limit block 23 away from the adjusting rod 22, and the function of the pull ring 24 is to facilitate manual operation.

[0026] A discharge pipe 3 is fixedly connected in the square groove 12. The function of the discharge pipe 3 is to discharge materials. A mounting groove 31 is provided on the outer wall surface of one side of the discharge pipe 3. The function of the mounting groove 31 is to install a connecting plate 41. A locking groove 32 is provided on the inner walls on both sides of the deep part of the mounting groove 31. The function of the locking groove 32 is to install a locking block 42. A valve 4 is movably connected to the discharge pipe 3. The function of the valve 4 is to control the locking of the discharge. Both ends of the valve 4 are fixedly connected to a connecting plate 41. The function of the connecting plate 41 is to fix the locking block 42. A locking block 42 is fixedly connected to the outer wall of the connecting plate 41. The function of the locking block 42 is to lock and fix.

[0027] A damping rod 5 is fixedly connected to the inner wall of the connecting plate 41 , and the function of the damping rod 5 is to buffer. A second spring 51 is movably sleeved on the outer wall of the damping rod 5 , and the function of the second spring 51 is to reset.

[0028] A sliding groove 11 is provided on one side of the inner wall of the sleeve 1 , and a slider 21 is fixedly connected to the bottom of the cylindrical sample injection member 2 . The sleeve 1 and the cylindrical sample injection member 2 are slidably connected via the sliding groove 11 and the slider 21 .

[0029] A circular hole 13 is formed on the outer wall of the sleeve 1 , and an adjusting rod 22 is fixedly connected to one side of the cylindrical sample injection member 2 close to the circular hole 13 . The adjusting rod 22 is located in the circular hole 13 , and the sleeve 1 and the adjusting rod 22 are slidably connected through the circular hole 13 .

[0030] A discharge pipe 3 is fixedly connected to the square groove 12, and a locking groove 32 is provided on the inner walls on both sides of the deep part of the installation groove 31. A valve 4 is movably connected to the discharge pipe 3, and a locking block 42 is fixedly connected to the outer wall of the connecting plate 41. The locking block 42 is located in the locking groove 32, and the discharge pipe 3 and the valve 4 are locked and connected with the locking block 42 through the locking groove 32.

[0031] Working principle: During the sampling operation, the cylindrical sampling part 2 is placed horizontally, the pull ring 24 is manually pushed, and the cylindrical sampling part 2 is inserted into the powder pile. When the powder fills the cylindrical sampling part 2, the pull ring 24 is manually pulled, and the pull ring 24 pulls the adjusting rod 22, and the adjusting rod 22 drives the cylindrical sampling part 2 to move into the sleeve 1. When the cylindrical sampling part 2 moves to the top of the square groove 12 opened at the bottom of the sleeve 1, the pull ring 24 is manually rotated to make the cylindrical sampling part 2 rotate to face the square groove 12, and then the powder falls into the discharge pipe 3, and then the valve 4 on the discharge pipe 3 is manually pulled, and the engaging block 42 is separated from the engaging groove 32, so that the valve 4 is separated from the discharge pipe 3, and finally the powder is discharged to the designated position. The structure is simple and easy to operate.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rapid sample injection device for a specific surface area and pore size analyzer, comprising a sleeve (1) and a cylindrical sample injection member (2) movably connected to the interior of the sleeve (1), characterized in that: A sliding groove (11) is provided on one side of the inner wall of the sleeve (1), a square groove (12) is provided on the bottom of the inner wall of the sleeve (1), a circular hole (13) is provided on the outer wall of the sleeve (1), and a first spring (14) is fixedly connected to the inner wall of the sleeve (1); The bottom of the cylindrical sample injection member (2) is fixedly connected to a slider (21); a side of the cylindrical sample injection member (2) close to the circular hole (13) is fixedly connected to an adjusting rod (22); a side of the adjusting rod (22) away from the cylindrical sample injection member (2) is fixedly connected to a limiting block (23); and a side of the limiting block (23) away from the adjusting rod (22) is fixedly connected to a pull ring (24).

2. The rapid sample injection device for a specific surface area and pore size analyzer according to claim 1, characterized in that: A discharge pipe (3) is fixedly connected in the square groove (12), a mounting groove (31) is provided on the outer wall surface of one side of the discharge pipe (3), and engaging grooves (32) are provided on the inner walls on both sides of the deep side of the mounting groove (31). A valve (4) is movably connected to the discharge pipe (3), and connecting plates (41) are fixedly connected at both ends of the valve (4), and engaging blocks (42) are fixedly connected to the outer wall of the connecting plate (41).

3. The rapid sample injection device for a specific surface area and pore size analyzer according to claim 2, characterized in that: A damping rod (5) is fixedly connected to the inner wall of the connecting plate (41), and a second spring (51) is movably sleeved on the outer wall of the damping rod (5).

4. The rapid sample injection device for a specific surface area and pore size analyzer according to claim 1, characterized in that: The sleeve (1) and the cylindrical sample injection part (2) are slidably connected via a sliding groove (11) and a sliding block (21).

5. The rapid sample injection device for a specific surface area and pore size analyzer according to claim 1, characterized in that: The adjusting rod (22) is located in the circular hole (13), and the sleeve (1) and the adjusting rod (22) are slidably connected through the circular hole (13).

6. The rapid sample injection device for a specific surface area and pore size analyzer according to claim 2, characterized in that: The engaging block (42) is located in the engaging groove (32), and the discharge pipe (3) and the valve (4) are engaged and connected with the engaging block (42) via the engaging groove (32).

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