Environment-friendly liquid sampling device

Abstract

The utility model provides an environment-friendly liquid sampling device which comprises a base and a sample storage barrel arranged on one side of the base, and further comprises a switching component, the switching component comprises a rotating rod rotationally arranged on the top of the base and a first motor arranged in the base and used for driving the rotating rod to rotate, the top of the rotating rod is fixedly connected with a connecting rod, and the connecting rod is fixedly connected with the base; the two ends of the connecting rod are fixedly connected with electric telescopic rods, the extending ends of the two electric telescopic rods are fixedly connected with sampling parts, and the switching part is used for switching one of the sampling parts between a sampling state and a sample placing state. According to the environment-friendly liquid sampling device provided by the utility model, the sampling component after sampling can be moved to a sample placing position through the conversion of the conversion component, and meanwhile, the sampling component after sample placing is moved to a sampling position, so that the device can be used for sampling and sample placing at the same time, and the sampling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sampling devices, and particularly relates to an environment-friendly liquid sampling device. Background Art

[0002] A liquid sampling device is a device specifically used for collecting liquid samples, which is widely used in many fields such as environmental monitoring, water quality detection, chemical industry, medicine, food safety, etc. The design and function of the liquid sampling device can vary according to different application requirements.

[0003] Liquid sampling devices are generally divided into two types. One is that when a large number of samples need to be collected, valve bodies are often used for control and pumps are used for extraction. The other is that when small samples are collected, a piston is often used to slide in a sampling cylinder to form negative pressure for extraction.

[0004] When collecting liquids, in order to facilitate subsequent experiments or data detection, multiple groups of data are often required to be collected simultaneously for comparison. Therefore, the number of samples collected is often multiple, which requires multiple collections during the collection process. However, traditional liquid sampling devices often first collect samples, then put the collected samples into a collection cylinder, and then collect samples again. The sampling method of alternating sampling and sample placement needs to improve efficiency.

[0005] In view of this, an environment-friendly liquid sampling device is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to solve the problem of low efficiency when an environment-friendly liquid sampling device is sampling, and provide an environment-friendly liquid sampling device.

[0007] To solve the above technical problems, the utility model adopts the following technical scheme: An environment-friendly liquid sampling device, including a base and a sample storage cylinder arranged on one side of the base, characterized in that it further includes: a switching component, the switching component includes a rotating rod rotatably arranged on the top of the base and a first motor arranged in the base for driving the rotating rod to rotate. The top of the rotating rod is fixedly connected with a connecting rod, and both ends of the connecting rod are fixedly connected with electric telescopic rods. The extending ends of the two electric telescopic rods are fixedly connected with sampling components. The switching component is used to switch one of the sampling components between the sampling state and the sample placement state; a sampling component, the sampling component includes a back plate fixedly connected to the extending end of the electric telescopic rod and a piston rod slidably arranged on the back plate. A sampling cylinder is sleeved on the piston rod, and a sampling head is arranged at the bottom of the sampling cylinder. The sampling component is used to perform a sampling operation when the sampling head extends into the sampling position.

[0008] Further, an upper plate is fixedly connected to the top of the back plate, a lower plate is fixedly connected to the bottom of the back plate, a sliding rod is fixedly connected between the upper plate and the lower plate, a sliding plate is sleeved on the sliding rod, the sliding plate is fixedly connected to the top of the piston rod, and the sliding plate is used to limit the piston rod so that it moves in a straight line during sampling and sample discharging to facilitate the control of sampling accuracy.

[0009] Further, the piston rod includes a rod cap fixedly connected to the bottom of the sliding plate and a sampling piston arranged at the bottom of the piston rod. The size of the sampling piston is adapted to the inner wall surface size of the sampling cylinder, so that the sampling piston can form negative pressure in the sampling cylinder through movement to cooperate with the sampling head to complete liquid sampling.

[0010] Further, a second motor is arranged on the top of the upper plate. The output end of the second motor is fixedly connected with a screw rod, and a nut sleeve is threadedly connected to the screw rod. The nut sleeve is rotationally connected to the rod cap.

[0011] Further, the top of the sampling cylinder is fixedly connected to the lower plate. A positioning plate is fixedly connected to the bottom of the lower plate, and a collar is fixedly connected to the positioning plate. The collar is fixedly connected to the middle part of the sampling cylinder, and the collar is used to fix the sampling cylinder.

[0012] Further, scales are arranged on the sampling cylinder to facilitate the control of the sample volume during sampling or sample discharging.

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

[0014] 1. The environment-friendly liquid sampling device provided by the utility model can move the sampling component after sampling to the sample discharging place through the conversion of the conversion component, and at the same time move the sampling component after sample discharging to the sampling place, so that the device can carry out sampling and sample discharging at the same time. In the case of needing to collect multiple samples at one time, the liquid sampling speed is greatly improved;

[0015] 2. The environment-friendly liquid sampling device provided by the utility model, through the setting of scales on the sampling cylinder, enables the device to perform relatively accurate control according to the scales during sampling and sample discharging, and improves the sampling and sample discharging accuracy in the liquid sampling process;

[0016] 3. The environment-friendly liquid sampling device provided by the utility model can notify the moving speed and moving distance of the piston rod in the sampling cylinder by driving the screw rod to rotate by the second motor, so that the sampling and sample discharging accuracy in the sampling process is further improved. Description of the Drawings

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1 It is a three-dimensional structure schematic diagram of an embodiment of the present utility model.

[0019] Figure 2 It is a three-dimensional structure schematic diagram of another angle of an embodiment of the present utility model.

[0020] Figure 3 It is a three-dimensional structure schematic diagram of a sampling component of an embodiment of the present utility model.

[0021] Figure 4 It is a detailed diagram of the split of the piston rod and the sampling cylinder of an embodiment of the present utility model.

[0022] Figure 5 It is a diagram showing the positional relationship between the screw rod and the piston rod of an embodiment of the present utility model.

[0023] Figure 6 It is a sectional schematic diagram of the screw rod and the screw sleeve of an embodiment of the present utility model.

[0024] In the figure:

[0025] 1. Base, 11. Sample storage cylinder, 2. Switching component, 21. Rotating rod, 22. First motor, 23. Connecting rod, 24. Electric telescopic rod, 3. Sampling component, 31. Back plate, 311. Upper plate, 312. Lower plate, 313. Slide rod, 314. Slide plate, 32. Piston rod, 321. Rod cap, 322. Sampling piston, 33. Sampling cylinder, 331. Scale, 332. Sampling head, 34. Second motor, 35. Screw rod, 36. Screw sleeve, 37. Positioning plate, 38. Collar. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] Please refer to Figure 1-6 .

[0028] The environment-friendly liquid sampling device of the utility model includes a base 1 and a sample storage cylinder 11 arranged on one side of the base 1, and further includes: a switching component 2, the switching component 2 includes a rotating rod 21 rotatably arranged on the top of the base 1 and a first motor 22 arranged in the base 1 for driving the rotating rod 21 to rotate. A connecting rod 23 is fixedly connected to the top of the rotating rod 21. Electric telescopic rods 24 are fixedly connected to both ends of the connecting rod 23. Sampling components 3 are fixedly connected to the extending ends of the two electric telescopic rods 24. The switching component 2 is used to switch one of the sampling components 3 between the sampling state and the sample discharging state; the sampling component 3, the sampling component 3 includes a back plate 31 fixedly connected to the extending end of the electric telescopic rod 24 and a piston rod 32 slidably arranged on the back plate 31. A sampling cylinder 33 is sleeved on the piston rod 32. A sampling head 332 is arranged at the bottom of the sampling cylinder 33. The sampling component 3 is used to perform a sampling operation when the sampling head 332 extends into the sampling position.

[0029] It should be noted that when using this device, the sampling device collects samples at different water level heights through the telescopic movement of the electric telescopic rod 24. At the same time, when one of the sampling components 3 is sampling, the other sampling component 3 can just perform sample discharging at the sample storage cylinder 11, so that the device can perform sampling and sample discharging operations simultaneously, improving the working efficiency of the liquid sampling of the device.

[0030] In addition, an upper plate 311 is fixedly connected to the top of the back plate 31, a lower plate 312 is fixedly connected to the bottom of the back plate 31. A sliding rod 313 is fixedly connected between the upper plate 311 and the lower plate 312. A sliding plate 314 is sleeved on the sliding rod 313. The sliding plate 314 is fixedly connected to the top of the piston rod 32. The sliding plate 314 is used to limit the piston rod 32 to keep it moving in a straight line during sampling and sample discharging so as to facilitate the control of sampling accuracy.

[0031] Such a setting is to ensure that the movement of the piston rod 32 is linear and avoid the influence on the liquid extraction caused by the deviation of the piston rod 32.

[0032] In addition, the piston rod 32 includes a rod cap 321 fixedly connected to the bottom of the sliding plate 314 and a sampling piston 322 arranged at the bottom of the piston rod 32. The size of the sampling piston 322 is adapted to the inner wall surface size of the sampling cylinder 33, so that the sampling piston 322 can form a negative pressure in the sampling cylinder 33 by moving to cooperate with the sampling head 332 to complete liquid sampling. In addition, a second motor 34 is arranged on the top of the upper plate 311. The output end of the second motor 34 is fixedly connected to a screw rod 35. A nut 36 is threadedly connected to the screw rod 35. The nut 36 is rotatably connected to the rod cap 321.

[0033] It should be noted that the piston rod 32 should be hollow to facilitate the insertion of the screw rod 35. In addition, as Figure 6As shown, a swivel ring enabling the swivel connection between the threaded sleeve 36 and the rod cap 321 should be provided on the outer side of the threaded sleeve 36. In this embodiment, the swivel ring is set to have a T-shaped cross-section. Correspondingly, a rotating groove enabling the rotation of the T-shaped swivel ring should be provided at the rod cap 321.

[0034] Specifically, the top of the sampling cylinder 33 is fixedly connected to the lower plate 312. A positioning plate 37 is fixedly connected to the bottom of the lower plate 312. A collar 38 is fixedly connected to the positioning plate 37. The collar 38 is fixedly connected to the middle of the sampling cylinder 33. The collar 38 is used to fix the sampling cylinder 33.

[0035] As Figure 3 shown, scales 331 facilitating the control of the sample volume during sampling or sample discharging are provided on the sampling cylinder 33. That is to say, during sampling, the quantity of the collected sample can be observed at the scales 331, and during sample discharging, the quantity of the discharged sample can be controlled by observing the scales 331. Therefore, the sampling cylinder 33 should be made of a transparent material.

[0036] When the device is in operation, the switching member 2 is used to switch the positions of the two sampling members 3 between sampling and sample discharging. The sampling member 3 realizes the liquid collection through the negative pressure formed by the piston movement.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. An environment-friendly liquid sampling device, comprising a base (1) and a sample storage cylinder (11) arranged on one side of the base (1), characterized in that, Further comprising: A switching component (2), the switching component (2) includes a rotating rod (21) rotatably arranged on the top of the base (1) and a first motor (22) arranged in the base (1) for driving the rotating rod (21) to rotate. A connecting rod (23) is fixedly connected to the top of the rotating rod (21). Electric telescopic rods (24) are fixedly connected to both ends of the connecting rod (23). Sampling components (3) are fixedly connected to the extending ends of the two electric telescopic rods (24). The switching component (2) is used to switch one of the sampling components (3) between the sampling state and the sample discharging state; A sampling component (3), the sampling component (3) includes a back plate (31) fixedly connected to the extending end of the electric telescopic rod (24) and a piston rod (32) slidably arranged on the back plate (31). A sampling cylinder (33) is sleeved on the piston rod (32). A sampling head (332) is arranged at the bottom of the sampling cylinder (33). The sampling component (3) is used to perform a sampling operation when the sampling head (332) extends into the sampling position.

2. The environment-friendly liquid sampling device according to claim 1, characterized in that: An upper plate (311) is fixedly connected to the top of the back plate (31), a lower plate (312) is fixedly connected to the bottom of the back plate (31). A sliding rod (313) is fixedly connected between the upper plate (311) and the lower plate (312). A sliding plate (314) is sleeved on the sliding rod (313). The sliding plate (314) is fixedly connected to the top of the piston rod (32). The sliding plate (314) is used to limit the piston rod (32) to keep it moving in a straight line during sampling and sample discharging so as to facilitate the control of sampling accuracy.

3. The environment-friendly liquid sampling device according to claim 2, characterized in that: The piston rod (32) includes a rod cap (321) fixedly connected to the bottom of the sliding plate (314) and a sampling piston (322) arranged at the bottom of the piston rod (32). The size of the sampling piston (322) is adapted to the inner wall surface size of the sampling cylinder (33), so that the sampling piston (322) can form a negative pressure by moving in the sampling cylinder (33) to cooperate with the sampling head (332) to complete liquid sampling.

4. The environmentally friendly liquid sampling device according to claim 3, characterized in that: A second motor (34) is arranged on the top of the upper plate (311). The output end of the second motor (34) is fixedly connected with a screw rod (35). A nut sleeve (36) is threadedly connected to the screw rod (35). The nut sleeve (36) is rotatably connected to the rod cap (321).

5. The environmentally friendly liquid sampling device according to claim 4, wherein: The top of the sampling cylinder (33) is fixedly connected to the lower plate (312). A positioning plate (37) is fixedly connected to the bottom of the lower plate (312). A collar (38) is fixedly connected to the positioning plate (37). The collar (38) is fixedly connected to the middle part of the sampling cylinder (33). The collar (38) is used to fix the sampling cylinder (33).

6. The environmentally friendly liquid sampling device according to claim 5, wherein: Scales (331) are arranged on the sampling cylinder (33) to facilitate the control of the sample volume during sampling or sample discharging.

Images