Automatic liquid sampler

Abstract

The utility model relates to the technical field of liquid sampling devices, in particular to an automatic liquid sampling device, and mainly aims to solve the problems that the length of the conventional pressing type manual liquid sampling device is limited, the sampling is inconvenient when a container is deep, the sampling amount is difficult to accurately control, and particularly the sampling depth cannot be accurate. According to the technical scheme, the liquid sampling device comprises a handheld grip, a sampling assembly convenient for automatically sampling liquid at different depths is arranged on the wall body of one side of the handheld grip, and the sampling assembly is arranged on the wall body of the other side of the handheld grip. According to the liquid sampling device, liquid at different liquid levels in a container can be sampled while automatic sampling of the liquid is achieved, the sampling precision can be controlled, and the situation that follow-up detection on the liquid is affected by errors is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sample extraction devices, in particular to an automatic liquid sampler. Background Art

[0002] During the production, storage or transportation of reactor tanks, liquid samples are often selected for analysis and testing. The different depths of containers may lead to sampling differences, especially for deeper and larger containers, which are inconvenient to sample with sampling tubes or sampling spoons. A similar method is a push-type manual plastic liquid extractor. By using the above-mentioned liquid extractor to complete the sampling of the liquid, subsequent testing of the liquid is facilitated.

[0003] However, the existing push-type manual liquid sampler has a limited length, which makes sampling inconvenient when the container is deep, and the sampling volume is difficult to accurately control, especially the sampling depth cannot be accurate. The samples obtained cannot accurately represent the performance of the liquid product and have large errors. In view of this, we propose an automatic liquid sampler. Utility Model Content

[0004] The utility model aims to provide an automatic liquid sampler in view of the problems existing in the background technology.

[0005] The technical solution of the utility model is as follows: an automatic liquid sampler comprises a hand-held handle, a sampling assembly for automatically sampling liquids of different depths is mounted on one side wall of the hand-held handle, a driving assembly for driving the sampling assembly to rotate is mounted on the other side wall of the hand-held handle, a boost switch button for controlling the sampling state of the driving assembly is mounted on the other side wall of the hand-held handle, and a decompression switch button for controlling the dosage of the sampled liquid is also mounted on the other side wall of the hand-held handle.

[0006] Preferably, the sampling assembly includes a retractable reel, a rotating shaft is welded on one side wall of the retractable reel, a rotating groove is opened on one side wall of the hand-held handle, a bearing is arranged in the rotating groove, and the bearing is sleeved on the outer ring surface of the rotating shaft.

[0007] Preferably, a silicone hose is wound in the storage groove of the retractable reel, scale lines are marked on the silicone hose, and a detection sampling head is installed at the sampling end of the silicone hose.

[0008] Preferably, auxiliary plates are symmetrically installed in the storage groove of the retractable reel, and guide holes are opened on the two auxiliary plates. The sampling end of the silicone hose remains in a downward vertical state after passing through the guide holes.

[0009] Preferably, a first storage groove is provided on the other side wall of the retractable reel, a bidirectional plunger pump is installed in the first storage groove, and an output end of the bidirectional plunger pump is connected to an outlet end of the silicone hose.

[0010] Preferably, the driving assembly includes a forward and reverse motor, a second storage slot is opened on the other side wall of the hand-held handle, the forward and reverse motor is installed in the second storage slot, and a motor switch button is installed on the outer wall of the forward and reverse motor.

[0011] Preferably, the second storage groove is communicated with the rotating groove, one end of the rotating shaft is arranged in the second storage groove, and one end of the rotating shaft is connected to the output end of the forward and reverse motor.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The utility model starts the forward and reverse motors by pressing the motor switch button to drive the rotating shaft to rotate counterclockwise, which can automatically release the silicone hose and adjust the sampling position of the detection sampling head to sample liquids at different liquid levels in the container, avoiding the sampling of the liquid being affected by the liquid level depth in the container during sampling, and pressing the boost switch button to start the two-way plunger pump to reduce the pressure in the silicone hose, so that the detection sampling head located in the liquid can achieve the purpose of automatic sampling of the liquid, complete the automatic sampling of the liquid, provide convenience for the sampling work, and under the arrangement of the scale lines, it is beneficial to control the liquid sampling accuracy, avoid deviations in the sampling liquid accuracy, and hinder subsequent detection of the liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of an automatic liquid sampler;

[0015] Figure 2 yes Figure 1 A schematic diagram of the left-view cross-sectional structure of the central sampling assembly;

[0016] Figure 3 yes Figure 1 Schematic diagram of the back structure of the mid-hand grip.

[0017] Figure numerals: 1. Handle; 2. Sampling assembly; 21. Retractable reel; 22. Rotating shaft; 23. Silicone hose; 24. Scale line; 25. Detection sampling head; 27. Bidirectional plunger pump; 3. Driving assembly; 31. Forward and reverse motor; 32. Motor switch button; 4. Boost switch button; 5. Decompression switch button; 6. Bearing. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Example

[0020] like Figure 1-3 As shown, an automatic liquid sampler proposed by the utility model comprises a handheld handle 1, a sampling assembly 2 for automatically sampling liquids of different depths is installed on one side wall of the handheld handle 1, the sampling assembly 2 comprises a retractable reel 21, one end of a rotating shaft 22 is installed on one side wall of the retractable reel 21, and is in a welding state with the retractable reel 21, the other end of the rotating shaft 22 passes through a rotating groove opened on one side wall of the handheld handle 1 and a bearing 6 arranged in the rotating groove, and is arranged in a second storage groove opened on the other side wall of the handheld handle 1, the inner ring surface of the bearing 6 is connected to the outer ring surface of the rotating shaft 22, and is used to fix the retractable reel 21 to one side of the handheld handle 1 through the rotating shaft 22, and is conducive to assisting the retractable reel 21 to rotate on the handheld handle 1; the silicone hose 23 is wound on the retractable reel 21, and when the retractable reel 21 is When rotating clockwise, the silicone hose 23 can be wound up, and when rotating counterclockwise, the silicone hose 23 can be extended and released, so that the release length of the silicone hose 23 can be adjusted according to the depth of the liquid level in the container to avoid different liquid levels in the container affecting the sampling of the liquid; the scale line 24 is marked on the outer wall of the silicone hose 23, which is convenient for the staff to check the sampling dosage of the liquid; the detection sampling head 25 is fixedly installed at the sampling end of the silicone hose 23, which is convenient for assisting the silicone hose 23 to sample the liquid; the two-way plunger pump 27 is fixedly installed in the first storage groove opened on the other side of the winding and unwinding reel 21, and its output end is connected to the outlet end of the silicone hose 23, which is conducive to pressurizing and depressurizing the silicone hose 23, and conveniently controlling the liquid dosage in the silicone hose 23 to avoid deviations in the liquid sampling dosage and affecting the subsequent detection of the liquid.

[0021] Furthermore, a driving assembly 3 for driving the sampling assembly 2 to rotate is installed on the other side wall of the hand-held handle 1. The driving assembly 3 includes a forward and reverse motor 31, which is fixedly installed in the second storage slot. One end of the rotating shaft 22 is connected to the output end of the forward and reverse motor 31, so that the rotating shaft 22 drives the reel 21 to rotate through the drive of the forward and reverse motor 31, so as to control the length of the silicone hose 23; the motor switch button 32 is fixedly installed on the outer wall of the forward and reverse motor 31 and is electrically connected to the forward and reverse motor 31, so that the staff can control the switch of the forward and reverse motor 31 conveniently; the boost switch button 4 and the decompression switch button 5 are both fixedly installed on the other side wall of the hand-held handle 1, and are both electrically connected to the bidirectional plunger pump 27, so as to facilitate the adjustment of the bidirectional plunger pump 27 to pressurize and decompress the silicone hose 23, which is beneficial to control the liquid dosage.

[0022] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. An automatic liquid sampler, comprising a handheld handle (1), characterized in that: A sampling assembly (2) is mounted on one side wall of the hand-held handle (1) for automatically sampling liquids at different depths; a driving assembly (3) is mounted on the other side wall of the hand-held handle (1) for driving the sampling assembly (2) to rotate; a boost switch button (4) is mounted on the other side wall of the hand-held handle (1) for controlling the sampling state of the driving assembly (3); and a decompression switch button (5) is mounted on the other side wall of the hand-held handle (1) for controlling the dosage of the sampled liquid.

2. An automatic liquid sampler according to claim 1, characterized in that: The sampling assembly (2) comprises a retractable reel (21), a rotating shaft (22) is welded on one side wall of the retractable reel (21), a rotating groove is opened on one side wall of the hand-held handle (1), a bearing (6) is arranged in the rotating groove, and the bearing (6) is sleeved on the outer ring surface of the rotating shaft (22).

3. An automatic liquid sampler according to claim 2, characterized in that: A silicone hose (23) is wound in the receiving groove of the retractable reel (21), a scale line (24) is marked on the silicone hose (23), and a detection sampling head (25) is installed at the sampling end of the silicone hose (23).

4. An automatic liquid sampler according to claim 3, characterized in that: The retractable reel (21) is provided with a storage groove, and the silicone hose (23) is wound in the storage groove.

5. An automatic liquid sampler according to claim 4, characterized in that: A first storage groove is provided on the other side wall of the retractable reel (21), a bidirectional plunger pump (27) is installed in the first storage groove, and the output end of the bidirectional plunger pump (27) is connected to the outlet end of the silicone hose (23).

6. An automatic liquid sampler according to claim 2, characterized in that: The driving assembly (3) comprises a forward and reverse motor (31), a second storage groove is provided on the other side wall of the hand-held handle (1), the forward and reverse motor (31) is installed in the second storage groove, and a motor switch button (32) is installed on the outer wall of the forward and reverse motor (31).

7. An automatic liquid sampler according to claim 6, characterized in that: The second storage groove is communicated with the rotating groove, one end of the rotating shaft (22) is arranged in the second storage groove, and one end of the rotating shaft (22) is connected to the output end of the forward and reverse motor (31).

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