Test liquid extraction device

Abstract

The utility model discloses a test liquid extraction device, relates to experimental apparatus technical field, concretely include isolation cylinder, extractor and locating ring, the bottom of isolation cylinder is evenly provided with the neck, the extractor is clamped in the inner cavity of neck, and the bottom of extractor is flush with the bottom of isolation cylinder, and the locating ring is located in the neck. A piston is movably connected into an inner cavity of the extractor, a piston rod is fixed to the top of the piston, a handle is fixedly connected to the other end of the piston rod, and the end, away from the piston rod, of the handle is located on the outer side of the isolation barrel. According to the test liquid extraction device, a user can extract test liquid at different heights as required, and the distance between two adjacent sampling rooms can be adjusted as required, so that the adaptability of the device is improved; through the arrangement of the isolation barrel and the extractor, the isolation barrel can protect the extractor, the test liquid is prevented from being adhered to the surface of the extractor, then the extractor does not need to be cleaned after completing test liquid extraction, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental instruments, in particular to a test liquid extraction device. Background Art

[0002] As people's living standards continue to improve, the demand for food is also increasing. The rich variety of food makes people's lives more comfortable. However, with the increase in food variety, food safety issues also arise. Therefore, during the production process, food needs to be extracted to facilitate testing.

[0003] In the prior art, some instruments for extracting liquid food are disclosed, such as a sample extraction device for food safety testing disclosed in the authorized patent with application number CN202120647834.7, which includes an outer tube, an inner rod is arranged inside the outer tube, the outer tube is rotatably connected to the inner rod, a plurality of sampling grooves are provided on the outer surface of the inner rod, an inner block is arranged on one side of the inner part of the sampling groove, a side tube is fixedly installed at the rear end of the outer tube, an inner cover is fixedly installed at one end of the inner part of the side tube, and a film and other components are fixedly installed inside the inner cover.

[0004] Since the above scheme is used, the device is directly inserted into the sample solution to be sampled. Therefore, after the above device completes sampling, the sampling liquid will adhere to the outer surface of the outer tube and needs to be cleaned, which makes the above scheme inconvenient to use and affects the sampling efficiency; and when the above scheme is used, the distance between adjacent sampling slots cannot be adjusted, affecting its adaptability; based on this, the present application proposes a test liquid extraction device. Utility Model Content

[0005] The utility model provides a test liquid extraction device, which solves the problems proposed in the above background technology that after liquid extraction, the extraction liquid adheres to the surface of the device, the surface of the device needs to be cleaned, the use is inconvenient, and the sampling efficiency is affected; the distance between adjacent sampling slots cannot be adjusted, which affects the adaptability of the device.

[0006] The utility model provides the following technical solutions: a test liquid extraction device, comprising an isolation cylinder and an extractor, the bottom of the isolation cylinder is evenly provided with card grooves, the inner cavity of the card grooves is carded with the extractor, and the bottom of the extractor is flush with the bottom of the isolation cylinder, a piston is movably connected in the inner cavity of the extractor, a piston rod is fixed on the top of the piston, a handle is fixedly connected to the other end of the piston rod, and the end of the handle away from the piston rod is located on the outside of the isolation cylinder; a rotating rod is movably connected to the middle of the isolation cylinder, a turntable is fixedly connected to the bottom of the rotating rod, the turntable is in contact with the bottom of the isolation cylinder, and a sampling hole adapted to the extractor is provided on one side of the turntable; a positioning ring is connected to the top of the isolation cylinder through a fixing bolt, the positioning ring is located above the handle, a scale is fixedly connected to one side of the bottom of the positioning ring, and the scale is movably connected to the isolation cylinder.

[0007] Preferably, a positioning sleeve is fixedly connected to the top end of the inner cavity of the extractor, and the piston rod is movably connected to the inner cavity of the positioning sleeve.

[0008] Preferably, the extractors are distributed in a circular shape in the inner cavity of the isolation cylinder, and the distance between the sampling hole and the rotating rod is the same as the distance between the extractors and the rotating rod.

[0009] Preferably, a pointer is fixedly connected to the outer ring at the top end of the rotating rod, and the pointer is located directly above the sampling hole; the rotating rod is connected to the turntable by bolts.

[0010] Preferably, a handle is fixedly connected to one side of the isolation cylinder, the top of the rotating rod is located above the isolation cylinder, and scale lines are provided on the outer surface of the isolation cylinder.

[0011] Preferably, the fixing bolt includes a screw threadedly connected to the side wall of the isolation cylinder and a rotating handle clamped to the top of the screw, the outer ring of the top of the rotating handle is movably connected to a pressure ring, the outer ring of the top of the screw is fixedly connected to a support ring, and the positioning ring is movably connected to the top of the screw.

[0012] Preferably, the distance between two adjacent extractors is not less than the diameter of the sampling hole.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. With the test liquid extraction device, the user can extract the test liquid at different heights according to the needs, and the distance between two adjacent sampling rooms can be adjusted according to the needs, which improves the adaptability of the device; through the setting of the positioning ring, the user can realize the quantitative extraction of the test liquid, and can adjust the quantitative extraction amount of the test liquid according to the needs, which improves the practicality of the device.

[0015] 2. The test liquid extraction device, through the arrangement of the isolation tube and the extractor, the isolation tube can protect the extractor and isolate the extractor from the test liquid, so that the extractor does not need to be cleaned after the test liquid extraction is completed, thereby improving the convenience of using the device; and the various parts of the device can be quickly disassembled and assembled, which is convenient for cleaning the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the structure of the utility model;

[0017] Figure 2 The utility model structure Figure 1 Schematic diagram from top view;

[0018] Figure 3 The utility model structure Figure 1 Bottom schematic diagram;

[0019] Figure 4 The utility model structure Figure 3 Explosion diagram;

[0020] Figure 5 This is an exploded schematic diagram of the structural fixing bolt of the utility model.

[0021] In the figure: 1. isolation cylinder; 2. handle; 3. rotating rod; 4. extractor; 5. positioning ring; 6. scale; 7. pointer; 8. positioning sleeve; 9. handle; 10. turntable; 11. bolt; 12. sampling hole; 13. piston rod; 14. piston; 15. screw; 16. support ring; 17. rotating handle. DETAILED DESCRIPTION

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

[0023] The utility model provides a test liquid extraction device, comprising an isolation cylinder 1, a handle 2 is fixed to one side of the isolation cylinder 1, and a user is convenient to hold the isolation cylinder 1. The outer surface of the isolation cylinder 1 is provided with scale lines, and the setting of the scale lines facilitates the user to judge the depth of the isolation cylinder 1 inserted into the test liquid to be sampled.

[0024] The bottom of the isolation cylinder 1 is evenly provided with card slots, and the inner cavity of the card slots is carded with an extractor 4, which is circumferentially distributed in the inner cavity of the isolation cylinder 1. Through the setting of the card slots, the extractor 4 and the isolation cylinder 1 can be separated, which is convenient for the use and cleaning of the device.

[0025] A piston 14 is movably connected in the inner cavity of the extractor 4, a piston rod 13 is fixedly connected to the top of the piston 14, a handle 9 is fixed to the top of the piston rod 13, and the end of the handle 9 away from the piston rod 13 is located outside the isolation tube 1. The user can pull the piston 14 to move in the inner cavity of the extractor 4 through the handle 9, and when the piston 14 moves, the sample liquid can be extracted into the extractor 4 or discharged from the extractor 4.

[0026] A positioning sleeve 8 is fixedly connected to the top of the inner cavity of the extractor 4, and the piston rod 13 is movably connected to the inner cavity of the positioning sleeve 8. Through the setting of the positioning sleeve 8, the positioning sleeve 8 can limit the piston rod 13, so that the piston rod 13 can move in the vertical direction, which is convenient for the user to drive the piston 14 to move through the handle 9.

[0027] The bottom of the extractor 4 is flush with the bottom of the isolation tube 1 , so that the extractor 4 can easily extract the test liquid.

[0028] The middle of the inner cavity of the isolation cylinder 1 is movably connected with a rotating rod 3, and the bottom of the rotating rod 3 is connected with a rotating disk 10 through a bolt 11. The bottom of the rotating disk 10 is flush with the bottom of the isolation cylinder 1. A sampling hole 12 adapted to the extractor 4 is provided on one side of the rotating disk 10, and the distance between the sampling hole 12 and the rotating rod 3 is the same as the distance between the extractor 4 and the rotating rod 3. In this way, the sampling hole 12 can be moved to the bottom of the extractor 4. When the sampling hole 12 moves to the bottom of the extractor 4, the extractor 4 can extract the test liquid, while other extractors 4 can be blocked by the rotating disk 10 to prevent the test liquid from contaminating other extractors 4. In addition, the distance between two adjacent extractors 4 is not less than the diameter of the sampling hole 12, so that the sampling hole 12 can be located between two adjacent extractors 4, and the rotating disk 10 can block all extractors 4 in the isolation cylinder 1, which is convenient for the movement of the device.

[0029] It can be seen from the above description that when the device is in use, the user can extract test liquid at different heights according to needs, and the distance between two adjacent sampling locations can be adjusted according to needs, thereby improving the adaptability of the device.

[0030] The outer ring at the top of the rotating rod 3 is fixedly connected with a pointer 7, which is located directly above the sampling hole 12. Through the setting of the pointer 7, the pointer 7 can play a positioning function, which is convenient for the user to determine the position of the sampling hole 12 and to move the sampling hole 12 to the bottom of the appropriate extractor 4. The top of the rotating rod 3 is located above the isolation cylinder 1, which is convenient for the user to rotate the rotating rod 3.

[0031] The top of the isolation tube 1 is connected with a positioning ring 5 through a fixing bolt. The positioning ring 5 is located above the handle 9. Through the setting of the positioning ring 5, the positioning ring 5 can position the handle 9 so that the user can quantitatively extract the test liquid.

[0032] In some embodiments of the present application, the fixing bolt includes a screw 15 threadedly connected to the side wall of the isolation tube 1 and a rotating handle 17 clamped to the top of the screw, the outer ring of the top of the rotating handle 17 is movably connected to a pressure ring, the outer ring of the top of the screw 15 is fixedly connected to a support ring 16, and the positioning ring 5 is movably connected to the top of the screw 15. It can be seen from the description of the fixing bolt that when the positioning ring 5 is movably connected to the top of the screw 15, the support ring 16 can support the positioning ring 5. At this time, the clamping of the rotating handle 17 and the screw 15 makes the pressure ring fit tightly with the top of the positioning ring 5. The pressure ring and the support ring 16 limit the positioning ring 5 so that the position of the positioning ring 5 can remain unchanged. At this time, the rotating handle 17 can be used to drive the screw to rotate, and the rotation of the screw can change the height of the positioning ring 5.

[0033] A scale ruler 6 is fixedly connected to one side of the bottom of the positioning ring 5, and the scale ruler 6 is movably connected to the isolation tube 1. The setting of the scale ruler 6 facilitates the user to judge the distance between the positioning ring 5 and the isolation tube 1. The distance between the isolation tube 1 and the positioning ring 5 is the same as the moving distance of the handle 9, which makes it convenient for the user to quantitatively extract the test liquid.

[0034] It can be seen from the above description that the extractor 4, the rotating disk 10 and the positioning ring 5 can be quickly disassembled and assembled, so as to facilitate the cleaning of the device.

[0035] In summary: when the test liquid extraction device is used, the user adjusts the distance between the positioning ring 5 and the isolation tube 1 according to the needs, so that the distance between the positioning ring 5 and the isolation tube 1 is the same as the height value of the test liquid extracted in the extractor 4. After the user inserts the isolation tube 1 into the test liquid to be sampled to a suitable depth, the user drives the rotating rod 3 to rotate, and the rotating rod 3 drives the turntable 10 fixedly connected thereto to rotate until the pointer 7 points to an extractor 4. At this time, the sampling hole 12 moves to the bottom of an extractor 4, and the user pulls the handle 9 forward, and the test liquid under the extractor 4 can be extracted into the extractor 4. When the handle 9 contacts the positioning ring 5, the user completes a sampling. After sampling, the user pulls out the rotating handle 17, removes the positioning ring 5, and the extractor 4 and the isolation tube 1 can be separated, and the user completes the test liquid extraction operation.

[0036] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A test liquid extraction device, comprising an isolation cylinder (1) and an extractor (4), characterized in that: The bottom of the isolation cylinder (1) is evenly provided with card slots, an extractor (4) is carded in the inner cavity of the card slot, and the bottom of the extractor (4) is flush with the bottom of the isolation cylinder (1), a piston (14) is movably connected in the inner cavity of the extractor (4), a piston rod (13) is fixed to the top of the piston (14), and a handle (9) is fixedly connected to the other end of the piston rod (13), and the end of the handle (9) away from the piston rod (13) is located outside the isolation cylinder (1); the middle part of the isolation cylinder (1) is movably connected to the piston rod (13). A rotating rod (3) is connected, and a rotating disk (10) is fixedly connected to the bottom of the rotating rod (3), and the rotating disk (10) contacts the bottom of the isolation cylinder (1), and a sampling hole (12) adapted to the extractor (4) is provided on one side of the rotating disk (10); the top of the isolation cylinder (1) is connected to a positioning ring (5) through a fixing bolt, and the positioning ring (5) is located above the handle (9); a scale (6) is fixedly connected to one side of the bottom of the positioning ring (5), and the scale (6) is movably connected to the isolation cylinder (1).

2. A test liquid extraction device according to claim 1, characterized in that: A positioning sleeve (8) is fixedly connected to the top end of the inner cavity of the extractor (4), and the piston rod (13) is movably connected to the inner cavity of the positioning sleeve (8).

3. A test liquid extraction device according to claim 1, characterized in that: The extractors (4) are circumferentially distributed in the inner cavity of the isolation cylinder (1), and the distance between the sampling hole (12) and the rotating rod (3) is the same as the distance between the extractors (4) and the rotating rod (3).

4. A test liquid extraction device according to claim 1, characterized in that: A pointer (7) is fixedly connected to the outer ring at the top of the rotating rod (3), and the pointer (7) is located directly above the sampling hole (12); the rotating rod (3) is connected to the rotating disk (10) via bolts (11).

5. A test liquid extraction device according to claim 1, characterized in that: A handle (2) is fixedly connected to one side of the isolation cylinder (1); the top of the rotating rod (3) is located above the isolation cylinder (1); and scale lines are provided on the outer surface of the isolation cylinder (1).

6. A test liquid extraction device according to claim 1, characterized in that: The fixing bolt comprises a screw (15) threadedly connected to the side wall of the isolation cylinder (1) and a rotating handle (17) clamped to the top of the screw (15); the outer ring of the top of the rotating handle (17) is movably connected to a pressure ring; the outer ring of the top of the screw (15) is fixedly connected to a support ring (16); and the positioning ring (5) is movably connected to the top of the screw (15).

7. A test liquid extraction device according to claim 1, characterized in that: The distance between two adjacent extractors (4) is not less than the diameter of the sampling hole (12).

Images