Test sample sampling device

Abstract

The utility model belongs to the technical field of laboratory sample sampling equipment, in particular to a test sample sampling device, which comprises a main body support, a leveraging column, a grip and a connecting block, the leveraging column is arranged on the inner side end face of the main body support, the grip is arranged on the inner side of the main body support, and the connecting block is arranged on the outer side end face of the main body support. Through the arrangement of the linkage adjusting rod, the clamping arms, the movable buckle and the middle-position locking shaft, when the device is used for sampling a laboratory sample, an operator abuts against the force-borrowing column through the palm and enables fingers to hook the grip, then the tail ends of the front sides of the clamping arms of the device are aligned to the sample needing to be sampled, and the sample is kept between the clamping arms on the two sides; according to the structure, an operator can be prevented from making direct contact with an experimental sample, compared with a three-jaw sampling structure, the clamping structure of the scheme is more compact and firmer, can be used in a narrow space, and is simple in overall structure and easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory sample sampling equipment, in particular to a sample sampling device for experiments. Background Art

[0002] Test samples are the material conditions that are indispensable for conducting experiments. These materials are not limited to chemical reagents, but also include natural objects, daily necessities, toys, simple instruments and utensils, etc. There are many types of test samples, including inorganic reagents, organic reagents, biochemical reagents, and newly synthesized or newly discovered chemical substances. In addition, they also include ores, mineral fuels, mineral oils and their by-products used in research. When using test samples, most test samples have chemical properties, so they cannot be sampled directly by hand.

[0003] The prior art has the following deficiencies: the prior art discloses a "plant sample sampling device for biotechnology experiments" with publication number CN217424783U, which "includes a main body, a clamping structure, and a shear key. The outer wall of the main body is provided with three hand-holding grooves, and a mounting groove is installed at the middle position of the bottom end of the hand-holding groove. A threaded rod is installed at the bottom end of the mounting groove through a rotating shaft, and a threaded block is connected to the outer wall of the threaded rod through a threaded connection. Connecting plates are installed at the front ends of both sides of the threaded block, a knob is installed at the top end of the threaded rod, and a connecting rod is installed at the rear end of the bottom end of the main body. A mounting half ring is installed at the bottom end of the connecting rod, and the shear key is located inside the mounting half ring, and the clamping structure is located on both sides of the bottom end of the main body."

[0004] The above structure clamps and samples the required plant samples through the clamping block. At this time, the connecting spring will be compressed, and then the sample can be taken out for experiment. However, the three-claw structure of this structure requires a large space to clamp and unfold, and cannot be used in a narrow space. In addition, the structure is complex and not convenient to use, and the clamping force cannot be accurately controlled. Utility Model Content

[0005] In view of the deficiencies of the prior art, the utility model provides a test sample sampling device, which solves the current problems of being unable to be applied to narrow spaces and the inability to accurately control the clamping force.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sample sampling device for a test, comprising a main frame, a lever post, a handle and a connecting block, wherein the lever post is arranged on the inner side end surface of the main frame, the handle is arranged on the inner side of the main frame, and the connecting block is arranged on the outer side end surface of the main frame;

[0007] The front end of the connecting block is provided with a clamping arm, the middle front end of the main body bracket is provided with a linkage adjustment rod, the side end of the linkage adjustment rod is provided with an active buckle, and the side end of the active buckle is provided with a neutral locking shaft;

[0008] The clamp arm also includes a median axis, a terminal axis, and a connecting rod. The median axis is movably connected to the middle position of the clamp arm, the terminal axis is movably connected to the end of the clamp arm close to the main support side, and the connecting rod is inserted into the middle side end of the clamp arm and extends toward the middle.

[0009] As a preferred technical solution of the utility model, the clamping arms are provided with two groups, the median axis passes through the clamping arms and the connecting rod, and the connecting rod is movably connected to the side ends of the clamping arms.

[0010] As a preferred technical solution of the utility model, the end of the clamping arm away from the main support is a thin sheet structure, and the other end of the clamping arm is a clamp structure, and the connecting block is clamped in the middle. The end axis passes through the clamping arm and the connecting block, and establishes a movable connection relationship between the connecting block and the clamping arm.

[0011] As a preferred technical solution of the utility model, the linkage adjustment rod further includes a spring and a limiting ring, the spring is sleeved on the periphery of the linkage adjustment rod, and the limiting ring is fixedly installed on the end of the linkage adjustment rod.

[0012] As a preferred technical solution of the utility model, the rear end of the linkage adjustment rod passes through the middle part of the main frame and is fixedly connected to the front end surface of the handle.

[0013] As a preferred technical solution of the utility model, the neutral lock shaft passes through the movable buckle and the connecting rod, and enables a movable connection relationship with a small swing effect between the connecting rod and the movable buckle.

[0014] As a preferred technical solution of the utility model, the movable buckles are provided in two groups, and the end of the linkage adjustment rod away from the main bracket on one side passes through between the two groups of movable buckles and establishes a movable connection therewith.

[0015] Compared with the prior art, the utility model provides a test sample sampling device, which has the following beneficial effects:

[0016] The sample sampling device for an experiment is provided with a linkage adjustment rod, a clamping arm, an active buckle and a mid-position locking shaft. When the device is used for sampling laboratory samples, the operator presses the lever with the palm of his hand and hooks the fingers on the grip, then aligns the front end of the clamping arm of the device with the sample to be sampled, and keeps the sample between the clamping arms on both sides, and then tightens the fingers so that the grip is driven by the fingers to move backward. At this time, the linkage adjustment rod connected to the grip is also driven and stretched backward by the grip, and the linkage adjustment rod drives the limit ring. When the limit ring moves, the active buckle stuck at the rear end thereof is pulled and swings slightly through the mid-position locking shaft. When the linkage adjustment rod continues to move backward, the clamping arms are driven to move through the connecting rods on both sides, and the clamps on both sides are The arms are continuously moved toward the center through the support of the median axis and the end axis. The operator determines the clamping force according to the specific properties of the sampled material. After clamping the sampled material at the ends of the clamping arms on both sides, the operator can drive the clamped sample to move over a long distance by moving the arms. After the sampled material can be placed, the operator only needs to release his fingers and relax the grip. The spring will shrink immediately after losing its tension, and the grip will be reset when shrinking, and the clamping arms on both sides will also return to their original positions. Through the above settings and processes, the structure can not only prevent the operator from directly contacting the experimental sample, but also, compared with the three-claw sampling structure, the clamping structure of this scheme is more compact and firm, can be used in a small space, and the overall structure is simple, which makes the adjustment of the clamping force more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the connection position structure of the handle of the utility model;

[0019] Figure 3 This is a schematic diagram of the connecting rod connection position structure of the utility model;

[0020] Figure 4 It is a schematic diagram of the front and rear end structures of the linkage adjustment rod of the utility model.

[0021] In the figure: 1. main frame; 2. lever column; 3. handle; 4. clamp arm; 401. center axis; 402. end axis; 403. connecting rod; 5. connecting block; 6. linkage adjustment rod; 601. spring; 602. limit ring; 7. movable buckle; 8. center locking axis. 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] See also Figure 1-4 In this embodiment: a test sample sampling device includes a main frame 1, a lever column 2, a handle 3 and a connecting block 5, the lever column 2 is arranged on the inner end surface of the main frame 1, the handle 3 is arranged on the inner side of the main frame 1, and the connecting block 5 is arranged on the outer end surface of the main frame 1;

[0024] A clamping arm 4 is provided at the front end of the connecting block 5, a linkage adjustment rod 6 is provided at the middle front end of the main frame 1, a movable buckle 7 is provided at the side end of the linkage adjustment rod 6, and a middle position locking shaft 8 is provided at the side end of the movable buckle 7;

[0025] The clamp arm 4 also includes a median axis 401, a terminal axis 402, and a connecting rod 403. The median axis 401 is movably connected to the middle position of the clamp arm 4, the terminal axis 402 is movably connected to the end of the clamp arm 4 close to the main support 1, and the connecting rod 403 is inserted into the middle side end of the clamp arm 4 and extends toward the middle.

[0026] In this embodiment, the clamp arm 4 is provided with two groups, the median axis 401 passes through the clamp arm 4 and the connecting rod 403, and the connecting rod 403 is movably connected to the side end of the clamp arm 4; the end of the clamp arm 4 away from the main support 1 is a thin sheet structure, and the other end of the clamp arm 4 is a clamp structure, and the connecting block 5 is clamped in the middle, and the end axis 402 passes through the clamp arm 4 and the connecting block 5, and the connecting block 5 is movably connected to the clamp arm 4;

[0027] Specifically, the end of the clamp arm 4 facing outward adopts a thin sheet structure, which can improve the accuracy of clamping the object, and the clamp-like structure at the other end of the clamp arm 4 can well fix the connecting block 5;

[0028] In this embodiment, the linkage adjustment rod 6 further includes a spring 601 and a limiting ring 602. The spring 601 is sleeved on the outer periphery of the linkage adjustment rod 6, and the limiting ring 602 is fixedly installed on the end of the linkage adjustment rod 6. The rear end of the linkage adjustment rod 6 passes through the middle of the main support 1 and is fixedly connected to the front end surface of the handle 3.

[0029] Specifically, when the linkage adjustment column 601 is pulled, the spring is squeezed by the main support 1 and the side end of the movable buckle 7 and contracts, and the spring 601 rebounds immediately after the operator releases the handle 3;

[0030] In this embodiment, the neutral lock shaft 8 passes through the movable buckle 7 and the connecting rod 403, and enables a movable connection relationship with the connecting rod 403 and the movable buckle 7 to have a small swinging effect; the movable buckle 7 is provided with two groups, and the end of the linkage adjustment rod 6 on the side away from the main bracket 1 passes through the two groups of movable buckles 7 and establishes a movable connection with them.

[0031] The working principle and use process of the utility model are as follows: when the device is used for sampling laboratory samples, the operator presses the lever column 2 with the palm of the hand and hooks the grip 3 with the fingers, then aligns the front end of the clamp arm 4 of the device with the sample to be sampled, and keeps the sample between the clamp arms 4 on both sides, and then tightens the fingers, so that the grip 3 is driven by the fingers to move backwards, at this time, the linkage adjustment rod 6 connected to the grip 3 is also driven by the grip 3 and stretched backwards, the linkage adjustment rod 6 drives the limit ring 602, and when the limit ring 602 moves, the active buckle 7 stuck at its rear end is pulled, and swings slightly through the middle lock shaft 8, As the linkage adjustment rod 6 continues to move backward, the clamping arms 4 are driven to move by the connecting rods 403 on both sides. The clamping arms 4 on both sides are continuously moved toward the center through the support of the median axis 401 and the end axis 402. The operator determines the clamping force according to the specific properties of the sampled material. After clamping the sampled material at the ends of the clamping arms 4 on both sides, the operator can drive the clamped sample to move over a long distance by moving his arms. After the sampled material can be placed, the operator only needs to release his fingers and relax the grip 3. The spring 601 will shrink immediately after losing its tension, and the grip 3 will be driven to reset when shrinking, and the clamping arms 4 on both sides will also return to their original positions.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A sample sampling device for a test, comprising a main frame (1), a lever column (2), a handle (3) and a connecting block (5), wherein the lever column (2) is arranged on the inner end surface of the main frame (1), the handle (3) is arranged on the inner side of the main frame (1), and the connecting block (5) is arranged on the outer end surface of the main frame (1), characterized in that: The front end of the connecting block (5) is provided with a clamping arm (4), the middle front end of the main frame (1) is provided with a linkage adjustment rod (6), the side end of the linkage adjustment rod (6) is provided with an active buckle (7), and the side end of the active buckle (7) is provided with a mid-position locking shaft (8); The clamp arm (4) further comprises a median axis (401), a terminal axis (402), and a connecting rod (403); the median axis (401) is movably connected to the middle position of the clamp arm (4); the terminal axis (402) is movably connected to the end of the clamp arm (4) close to the main support (1); and the connecting rod (403) is inserted into the middle side end of the clamp arm (4) and extends toward the middle.

2. A test sample sampling device according to claim 1, characterized in that: The clamping arm (4) is provided with two groups, and the median axis (401) passes through the clamping arm (4) and the connecting rod (403), and enables the connecting rod (403) to be movably connected to the side end of the clamping arm (4).

3. A test sample sampling device according to claim 1, characterized in that: The end of the clamp arm (4) on one side away from the main support (1) is in a sheet-like structure, and the end of the clamp arm (4) on the other side is in a clamp-like structure, and clamps the connecting block (5) in the middle. The end shaft (402) passes through the clamp arm (4) and the connecting block (5), and establishes a movable connection relationship between the connecting block (5) and the clamp arm (4).

4. A test sample sampling device according to claim 1, characterized in that: The linkage adjustment rod (6) further comprises a spring (601) and a limiting ring (602); the spring (601) is sleeved on the periphery of the linkage adjustment rod (6); and the limiting ring (602) is fixedly mounted on the end of the linkage adjustment rod (6).

5. A test sample sampling device according to claim 1, characterized in that: The rear end of the linkage adjustment rod (6) passes through the middle of the main frame (1) and is fixedly connected to the front end surface of the handle (3).

6. A test sample sampling device according to claim 1, characterized in that: The middle locking shaft (8) passes through the movable buckle (7) and the connecting rod (403), and enables a movable connection relationship with a small swing effect between the connecting rod (403) and the movable buckle (7).

7. A test sample sampling device according to claim 1, characterized in that: The movable buckles (7) are provided in two groups, and the end of the linkage adjustment rod (6) on one side away from the main frame (1) passes through between the two groups of movable buckles (7) and is in movable connection with them.

Images