CN216349756U - Sampling device suitable for flash point test - Google Patents
Sampling device suitable for flash point test Download PDFInfo
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- CN216349756U CN216349756U CN202122494810.5U CN202122494810U CN216349756U CN 216349756 U CN216349756 U CN 216349756U CN 202122494810 U CN202122494810 U CN 202122494810U CN 216349756 U CN216349756 U CN 216349756U
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- needle cylinder
- sampling device
- flash point
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Abstract
The utility model discloses a sampling device suitable for a flash point test, which integrally adopts a cylindrical hollow cylindrical structure formed by combining and connecting cylindrical components, adopts a double-layer sleeving mode, and enables an inner layer device to be sleeved in an outer layer device and to be rotatably connected with an outer side device; when the liquid pumping holes and the liquid pumping groove are in the coincident position, the liquid pumping holes and the openings at the bottom ends of the needles can be operated simultaneously; when the liquid pumping hole and the liquid pumping groove are in a staggered position, the operation can be carried out only through the bottom end opening of the needle head; thereby realizing different sampling and mixing operation modes of the liquid sample.
Description
Technical Field
The utility model relates to a sampling device suitable for a flash point test.
Background
In the flash point test, the quantity of a liquid sample is about 70ml, adopts the iron drum splendid attire under ordinary conditions to, adopt the mode of pouring into to take a sample, rely on manual operation mode completely, and in the current test method, do not restrict or set up corresponding sampling device to the sampling process, for rigorous control sampling flow and sample volume, exist following unfavorable factor in the messenger flash point test:
1. the automation degree of the test process is low, time and labor are wasted, and the test efficiency is greatly reduced;
2. the sampled liquid samples are often mixed unevenly, so that the data obtained by the test are not accurate enough;
3. when a liquid sample is poured into a test cup, leakage often occurs, and corrosion and pollution of a test device or a test bed are caused.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the utility model provides a sampling device suitable for a flash point test, which is convenient for the operation of the test.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a sampling device suitable for flash point testing, comprising: an inner layer device and an outer layer device; the inner layer device is sleeved in the outer layer device and is rotationally connected with the outer layer device; a core bar is arranged in the inner layer device; the bottom end of the core rod is provided with a piston; the piston is connected with the inner layer device in an interference fit mode, so that the core rod can slide up and down along the inner side face of the inner layer device.
The inner layer device comprises: an inner needle cylinder and an inner needle head; the inner needle head and the inner needle cylinder are both of cylindrical hollow tubular structures and are coaxially arranged, and the inner needle head is fixedly connected to the lower end of the inner needle cylinder.
The outer layer means comprises: an outer needle cylinder and an outer needle head; the outer needle head and the outer needle cylinder are both of cylindrical hollow tubular structures and are coaxially arranged, and the outer needle head is fixedly connected to the lower end of the outer needle cylinder.
The outer needle cylinder is sleeved outside the inner needle cylinder, and a second baffle is arranged on the upper edge of the outer needle cylinder inwards along the radial direction.
The outer side of the inner needle cylinder is provided with a first baffle which is arranged outwards along the radial direction and is positioned below the second baffle, the first baffle is matched with the second baffle of the outer needle cylinder to realize spigot joint, the longitudinal displacement of the outer needle cylinder along the inner needle cylinder is limited, and the outer needle cylinder and the inner needle cylinder are prevented from being separated or moving up and down.
A rotary connecting structure is arranged between the side wall of the outer needle cylinder and the side wall of the inner needle cylinder, so that the rotary connection of the outer needle cylinder and the inner needle cylinder is realized.
The upper end of the piston is fixedly connected with a push-pull rod, and the top end of the push-pull rod is fixedly connected with a push-pull plate.
The inner needle comprises: the needle tube is in a cylindrical hollow cylinder shape, the upper end and the lower end of the needle tube are open, and a plurality of rows of longitudinally arranged liquid pumping holes are formed in the side wall of the needle tube.
The outer needle includes: and the second connecting part is arranged in the interlayer between the second connecting end and the first connecting end and is fixedly connected with the second connecting end, so that the outer needle head is rotatably connected with the inner needle head.
The second needle tube is fixedly connected below the second connecting part, the side wall of the second needle tube is in a cylindrical hollow cylinder shape, the second needle tube is sleeved outside the first needle tube, the upper end and the lower end of the second needle tube are open, and the side wall of the second needle tube is provided with a plurality of longitudinal strip-shaped liquid pumping grooves.
The utility model has the beneficial effects that:
the sampling device in one or more embodiments of the utility model integrally adopts a cylindrical hollow cylindrical structure formed by combining and connecting cylindrical components, adopts a double-layer sleeving mode, and enables an inner layer device to be sleeved in an outer layer device and to be rotatably connected with an outer layer device; when the liquid pumping holes and the liquid pumping groove are in the coincident position, the liquid pumping holes and the openings at the bottom ends of the needles can be operated simultaneously; when the liquid pumping hole and the liquid pumping groove are in a staggered position, the operation can be carried out only through the bottom end opening of the needle head; thereby realizing different sampling and mixing operation modes of the liquid sample.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.
FIG. 1 is a cross-sectional view of a sampling device according to one or more embodiments of the present invention;
FIG. 2 is a cross-sectional view of an inner layer assembly according to one or more embodiments of the present disclosure;
FIG. 3 is a side view of the inner needle of one or more embodiments of the present invention;
FIG. 4 is a sectional view of the inner cylinder according to one or more embodiments of the present invention;
FIG. 5 is a cross-sectional view of an outer layer assembly according to one or more embodiments of the present invention;
FIG. 6 is a sectional view of the outer cylinder according to one or more embodiments of the present invention;
FIG. 7 is a side view of the outer needle of one or more embodiments of the present invention;
FIG. 8 is a first side view of the inner needle and outer needle assembly in accordance with one or more embodiments of the present invention;
FIG. 9 is a second side view of the inner needle and outer needle assembly in accordance with one or more embodiments of the present invention;
the needle comprises a core rod 1, a core rod 2, an inner needle cylinder 3, an outer needle cylinder 4, an inner needle head 5, an outer needle head 6, a piston 7, a rotary connecting structure 8, a first baffle plate 9, a first connecting part 10, a first external plate 11, a second external plate 12, a first cylinder wall 13, a second cylinder wall 14, a first connecting end 15, a second connecting part 16, a liquid pumping hole 17, a second connecting end 18 and a liquid pumping groove.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The terms "mounted," "connected," "fixed," and the like in this application are to be construed broadly, e.g., as meaning a fixed connection, a detachable connection, or an integral connection; the connection may be direct, indirect through an intermediate medium, an internal connection between two elements, or an interaction relationship between two elements; to those skilled in the art, the above terms are to be understood as having the specific meanings of the present invention according to specific situations and not as being limiting.
The first embodiment is as follows:
the utility model is described in detail below with reference to the accompanying drawings, the specific structure of which is as follows:
the embodiment provides a sampling device suitable for a flash point test, which integrally adopts a cylindrical hollow cylindrical structure formed by combining and connecting cylindrical components, adopts a double-layer sleeving mode, and enables an inner layer device and an outer layer device to be rotatably connected, thereby realizing different operation states; the sampling device is coaxially provided with the following components from inside to outside in sequence: core bar, inner syringe, outer syringe.
The inner layer device comprises: an inner syringe and an inner needle.
The outer layer means comprises: an outer syringe and an outer needle.
The core bar is provided with from last to down coaxial coupling in proper order: the piston is connected with the first cylinder wall of the inner cylinder in an interference fit mode, so that the core rod slides up and down along the inner side surface of the first cylinder wall.
The inner needle cylinder is sequentially and coaxially connected from top to bottom and is provided with: the outer needle cylinder comprises a circular first external plate, a cylindrical hollow cylindrical first cylinder wall and a cylindrical hollow cylindrical first connecting end, wherein a circular first baffle plate is further arranged on the outer side of the first cylinder wall, the first baffle plate and the first external plate are concentric and parallel, and the first baffle plate is matched with a second baffle plate on the inner side of the second external plate of the outer needle cylinder in a seam allowance manner, so that the outer needle cylinder is fixed on the outer side of the inner needle cylinder.
Interior syringe needle is through first link end fixed connection interior syringe needle, interior syringe needle is from last to coaxial being provided with down in proper order: the needle comprises a cylindrical hollow cylindrical first connecting part and a cylindrical hollow cylindrical first needle tube, wherein the first connecting part is sleeved at the top end of the first needle tube and embedded into the cylindrical hollow cylinder of the first connecting end, so that the inner needle tube is fixedly connected with the inner needle head, and a plurality of rows of longitudinally arranged liquid pumping holes are formed in the side wall of the first needle tube.
In this embodiment, three rows of liquid extraction holes are uniformly distributed along the circumference of the cross section of the side wall on the cylindrical side wall of the first needle tube, and the circumferential included angle between each row of liquid extraction holes is 120 degrees.
The outer needle cylinder is provided with from last to down coaxial coupling in proper order: the circular ring-shaped second external plate, the cylindrical hollow cylindrical second cylinder wall and the cylindrical hollow cylindrical second connecting end are arranged on the outer side of the inner needle cylinder, the circumferential diameter of the inner edge of the second external plate is smaller than the inner diameter of the second cylinder wall, so that the second baffle plate extends inwards from the inner edge of the second external plate, when the outer needle cylinder is sleeved on the outer side of the inner needle cylinder, the second baffle plate is arranged on the upper side of the first baffle plate, the first baffle plate and the second baffle plate are utilized to form a spigot structure, the longitudinal displacement of the outer needle cylinder along the inner needle cylinder is limited, and the outer needle cylinder is prevented from being separated from or moving up and down from the inner needle cylinder.
Outer syringe needle passes through outer syringe needle of second connecting end fixed connection, outer syringe needle is from last to coaxial being provided with down in proper order: the hollow cylindric second connecting portion of cylinder, the hollow cylindric second needle tubing of cylinder, the second connecting portion cover is established on second needle tubing top to imbed between the hollow section of thick bamboo of second link cylinder and the hollow section of thick bamboo of first link cylinder, when making outer cylinder and outer syringe needle fixed connection, still make interior syringe needle and outer syringe needle rotate and be connected, the second needle tubing lateral wall is provided with a plurality of liquid groove of taking out, liquid groove of taking out sets up to vertical rectangular form open slot along the lateral wall.
In this embodiment, the cylindrical sidewall of the second needle tube is provided with three liquid-pumping grooves uniformly distributed along the circumference of the cross section of the sidewall, and the circumferential included angle between each two liquid-pumping grooves is 120 degrees.
In this embodiment, the rotating connection structure adopts a flexible elastic ring with a thickness slightly larger than a size of a gap between the first cylinder wall and the second cylinder wall, so that the first cylinder wall and the second cylinder wall are connected in an interference fit manner, and the first cylinder wall and the second cylinder wall are rotatably connected.
Preferably, the flexible elastic ring can be made of elastic and flexible materials such as silica gel and rubber, and the damping effect of rotation between the first cylinder wall and the second cylinder wall is achieved.
The outer side surface of the first cylinder wall is marked with volume scales, and in the embodiment, the volume of the inner needle cylinder is 100 ml.
The first needle tube and the second needle tube are in different specifications and are suitable for different liquid samples.
Example two:
the embodiment provides a working mode of a sampling device suitable for a flash point test, and the structure of the sampling device in the first embodiment is adopted.
The core rod is pushed into the bottom end of the inner needle cylinder, the outer needle cylinder is rotated to enable the outer needle cylinder to drive the outer needle head to rotate relative to the inner needle cylinder and the inner needle head, the liquid pumping hole and the liquid pumping groove are rotated to the same angle and are arranged in an overlapping mode, as shown in the attached drawing 8, the outer needle head and the inner needle head are placed into liquid, the liquid is enabled to submerge the liquid pumping hole in the uppermost side of the inner needle head, the core rod is pulled upwards, and the liquid sample is pumped into the inner needle cylinder from the bottom end opening of the inner needle head and the liquid pumping holes.
After the liquid sample in the inner needle cylinder reaches the designated capacity, the sampling device is taken out, the outer needle cylinder is rotated again, the outer needle cylinder drives the outer needle head to rotate relative to the inner needle cylinder and the inner needle head, the positions of the liquid pumping hole and the liquid pumping groove are arranged in a staggered mode, as shown in the attached drawing 9, the outer needle head and the inner needle head are arranged above the testing device, the core rod is pushed downwards, the liquid sample is injected into the testing device from the bottom end opening of the needle head, the piston is pushed and pressed by the core rod of the sampling device, the formed injection pressure is formed, the liquid sample is injected into the testing device at a certain acceleration, the mixing of the liquid sample is facilitated, the liquid sample can be further stirred by the rod body structure of the needle head, and the liquid used for the test is fully and uniformly mixed.
Example three:
the embodiment provides a sampling device suitable for a flash point test, which integrally adopts a cylindrical hollow cylindrical structure formed by combining and connecting cylindrical components, adopts a double-layer sleeving mode, and enables an inner-layer device to be sleeved in an outer-layer device and to be rotatably connected with an outer-layer device; the inner layer device comprises: an inner needle head; the inner needle comprises: the side wall of the first needle tube is provided with a plurality of rows of longitudinally arranged liquid pumping holes.
The outer side of the top end of the first needle tube is sleeved with a first connecting part, and the first connecting part is embedded into a first connecting end at the lower end of an inner needle cylinder of the inner-layer device, so that the inner needle is fixedly connected with the inner needle cylinder and rotates along with the rotation of the inner needle cylinder.
A first cylindrical hollow cylindrical wall is further connected above the first connecting end of the inner needle cylinder, and an annular first external plate is arranged on the edge of the top end of the first cylindrical wall, so that the inner needle cylinder is of a hollow cylindrical structure with openings at the upper end and the lower end.
The outer side surface of the first cylinder wall is sleeved with a circular ring-shaped first baffle, the upper side surface of the first baffle is provided with a second baffle, the second baffle is arranged at the top end edge of the second cylinder wall of the outer cylinder, and a spigot structure is formed by the first baffle and the second baffle to limit the longitudinal displacement of the outer cylinder along the inner cylinder and prevent the outer cylinder from separating from or moving up and down with the inner cylinder.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A sampling device suitable for flash point testing, comprising: an inner layer device and an outer layer device; the inner layer device is sleeved in the outer layer device and is rotationally connected with the outer layer device; a core bar is arranged in the inner layer device; the bottom end of the core rod is provided with a piston; the piston is connected with the inner layer device in an interference fit mode, so that the core rod can slide up and down along the inner side face of the inner layer device.
2. The sampling device of claim 1, wherein the inner device comprises: an inner needle cylinder and an inner needle head; the inner needle head and the inner needle cylinder are both of cylindrical hollow tubular structures and are coaxially arranged, and the inner needle head is fixedly connected to the lower end of the inner needle cylinder.
3. The sampling device of claim 2, wherein the outer layer means comprises: an outer needle cylinder and an outer needle head; the outer needle head and the outer needle cylinder are both of cylindrical hollow tubular structures and are coaxially arranged, and the outer needle head is fixedly connected to the lower end of the outer needle cylinder.
4. The sampling device suitable for flash point test of claim 3, wherein the outer needle cylinder is sleeved outside the inner needle cylinder, and a second baffle plate is arranged radially inwards on the upper edge of the outer needle cylinder.
5. The sampling device suitable for the flash point test of claim 4, wherein the outer side of the inner needle cylinder is provided with a first baffle plate which is arranged radially outwards, the first baffle plate is positioned below the second baffle plate and is in spigot fit with the second baffle plate of the outer needle cylinder, so that the longitudinal displacement of the outer needle cylinder along the inner needle cylinder is limited, and the outer needle cylinder is prevented from being separated from or moving up and down with the inner needle cylinder.
6. The sampling device suitable for flash point test of claim 4, characterized in that a rotary connection structure is arranged between the side wall of the outer needle cylinder and the side wall of the inner needle cylinder, so as to realize the rotary connection of the outer needle cylinder and the inner needle cylinder.
7. The sampling device suitable for flash point test of claim 1, wherein the piston is fixedly connected with a push-pull rod at the upper end, and a push-pull plate is fixedly connected with the top end of the push-pull rod.
8. The sampling device of claim 4, wherein the inner needle comprises: the needle tube is in a cylindrical hollow cylinder shape, the upper end and the lower end of the needle tube are open, and a plurality of rows of longitudinally arranged liquid pumping holes are formed in the side wall of the needle tube.
9. The sampling device of claim 8, wherein the outer needle comprises: and the second connecting part is arranged in the interlayer between the second connecting end and the first connecting end and is fixedly connected with the second connecting end, so that the outer needle head is rotatably connected with the inner needle head.
10. The sampling device suitable for flash point test of claim 9, wherein a second needle tube is fixedly connected below the second connecting part, the side wall of the second needle tube is cylindrical and hollow, the second needle tube is sleeved outside the first needle tube, the upper end and the lower end of the second needle tube are open, and the side wall is provided with a plurality of longitudinal strip-shaped liquid drawing grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122494810.5U CN216349756U (en) | 2021-10-15 | 2021-10-15 | Sampling device suitable for flash point test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122494810.5U CN216349756U (en) | 2021-10-15 | 2021-10-15 | Sampling device suitable for flash point test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216349756U true CN216349756U (en) | 2022-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122494810.5U Active CN216349756U (en) | 2021-10-15 | 2021-10-15 | Sampling device suitable for flash point test |
Country Status (1)
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|---|---|
| CN (1) | CN216349756U (en) |
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2021
- 2021-10-15 CN CN202122494810.5U patent/CN216349756U/en active Active
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