Liquid sampling, metering and detecting device

Abstract

The utility model discloses a liquid sampling, metering and detecting device, which relates to the technical field of liquid sampling and metering and comprises a sampling tube and a liquid inlet tube, a piston is arranged in the sampling tube, and a connecting rod penetrating through the sampling tube is mounted at the top of the piston. When the liquid sampling, metering and detecting device is used, a pressing block can be extruded according to the sampling requirement of liquid, so that the pressing block extrudes a clamping block into a telescopic rod, at the moment, the clamping block does not limit the telescopic rod, then a telescopic spring jacks a lantern ring upwards through the telescopic rod, and the lantern ring does not extrude an arc-shaped block; when the liquid is transferred, the arc-shaped block is not extruded, namely, the movable rod penetrating through the middle of the connecting rod is not extruded, at the moment, the movable rod can be pushed downwards, so that the movable rod blocks the liquid inlet pipe through the rubber plug, the situation that the liquid in the sampling pipe leaks when the liquid is transferred can be avoided, and the subsequent liquid detection effect cannot be influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid sampling and metering, in particular to a liquid sampling and metering detection device. Background Art

[0002] The liquid sampling, metering and detection device is a device used to collect and measure liquid samples. Due to its convenient operation, it is widely used in environmental monitoring, chemical production, food and beverage manufacturing, pharmaceutical research and development and other fields.

[0003] In order to facilitate the subsequent rapid transfer of internal liquid to other containers, existing liquid sampling, metering and testing devices usually do not have any sealing mechanism. As a result, after sampling is completed, the internal liquid is prone to leakage, resulting in a decrease in the sampling liquid capacity, which in turn affects subsequent metering and testing needs. Utility Model Content

[0004] The utility model aims to provide a liquid sampling metering and detecting device to solve the problem in the above background technology that the currently used liquid sampling metering and detecting device is inconvenient to seal and transfer the liquid.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid sampling metering detection device, comprising: a sampling tube and a liquid inlet tube, wherein a piston is arranged inside the sampling tube, a connecting rod penetrating the sampling tube is installed on the top of the piston, a connecting block is installed on the outside of the connecting rod, guide rods are penetrated and connected on both sides of the connecting block, and the liquid inlet tube is installed at the bottom of the sampling tube;

[0006] An arc block is installed on the top of the connecting rod, a movable rod is connected through the middle of the connecting rod, a rubber plug is installed on the bottom of the movable rod, a ring is sleeved on the outer side of the movable rod, a telescopic rod passing through the connecting rod is installed on the bottom of the ring, a movable spring is installed inside the telescopic rod, a clamping block passing through the telescopic rod is installed on one side of the movable spring, a pressure block passing through the movable rod is provided on one side of the clamping block, and a telescopic spring is connected between the telescopic rod and the groove of the connecting rod.

[0007] Preferably, two groups of telescopic rods are symmetrically installed about the center line of the collar, and the outer side of the arc block is an inclined surface structure.

[0008] Preferably, a support seat is sleeved on the outer side of the sampling tube, and top blocks are penetrated and connected on both sides of the support seat.

[0009] Preferably, a rotating block is provided on one side of the top block.

[0010] Preferably, a telescopic block is arranged on the same side of the rotating block away from the top block, and a return spring is connected between the telescopic block and the groove of the support seat.

[0011] Preferably, a ball is provided on one side of the rotating block away from the telescopic block through a sliding groove, and a limiting rod is provided on one side of the ball.

[0012] Preferably, a bump is provided on a side of the limiting rod away from the ball, and the bump is installed on the outside of the sampling tube.

[0013] Compared with the prior art, the beneficial effect of the utility model is that when the liquid sampling, metering and detecting device is in use, the pressing block can be squeezed according to the sampling needs of the liquid, so that the pressing block squeezes the card block into the telescopic rod. At this time, the card block does not limit the telescopic rod, and then the telescopic spring will push the ring upward through the telescopic rod, so that the ring does not squeeze the arc block. If the arc block is not squeezed, it will not squeeze the movable rod passing through the middle of the connecting rod. At this time, the movable rod can be pushed downward, so that the movable rod can seal the liquid inlet pipe through the rubber plug, thereby avoiding leakage of liquid in the sampling tube when transferring liquid, and will not affect the subsequent liquid detection effect. This is the use feature of the liquid sampling, metering and detecting device.

[0014] 1. When the liquid sampling metering and detecting device is in use, the pressing block can be squeezed according to demand, so that the pressing block squeezes the card block into the telescopic rod, and then the telescopic spring drives the sleeve ring to move upward through the telescopic rod. At this time, the arc block does not squeeze the movable rod, and the movable rod can drive the rubber plug to seal the liquid inlet pipe, thereby avoiding liquid leakage.

[0015] 2. When the liquid sampling metering and detecting device is in use, the top block can be squeezed toward the inside of the support seat according to the use requirements, and the rotating block can be squeezed to rotate. The rotation of the rotating block will drive the limit rod to separate from the convex block on the outside of the sampling tube through the slide groove and the ball, and then the sampling tube can be extended and retracted along the support seat, so that liquids at different heights can be sampled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first viewing angle;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the main cutaway structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the main cutaway structure of the support seat of the utility model;

[0020] Figure 5 It is a schematic diagram of the front cutaway structure of the connecting rod of the utility model.

[0021] In the figure: 1. sampling tube; 2. piston; 3. connecting rod; 4. connecting block; 5. guide rod; 6. liquid inlet pipe; 7. arc block; 8. movable rod; 9. rubber plug; 10. collar; 11. telescopic rod; 12. movable spring; 13. clamping block; 14. pressure block; 15. telescopic spring; 16. supporting seat; 17. top block; 18. rotating block; 19. telescopic block; 20. reset spring; 21. ball; 22. limit rod; 23. bump. 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-Figure 3 The utility model provides a technical solution: a liquid sampling metering detection device, comprising: a sampling tube 1 and a liquid inlet pipe 6, a piston 2 is arranged inside the sampling tube 1, a connecting rod 3 penetrating the sampling tube 1 is installed on the top of the piston 2, a connecting block 4 is installed on the outside of the connecting rod 3, guide rods 5 are penetrated and connected on both sides of the connecting block 4, and the liquid inlet pipe 6 is installed at the bottom of the sampling tube 1;

[0024] An arc block 7 is installed on the top of the connecting rod 3, a movable rod 8 is connected through the middle of the connecting rod 3, a rubber plug 9 is installed at the bottom of the movable rod 8, a ring 10 is sleeved on the outer side of the movable rod 8, a telescopic rod 11 penetrating the connecting rod 3 is installed at the bottom of the ring 10, a movable spring 12 is installed inside the telescopic rod 11, a clamping block 13 penetrating the telescopic rod 11 is installed on one side of the movable spring 12, a pressure block 14 penetrating the movable rod 8 is provided on one side of the clamping block 13, a telescopic spring 15 is connected between the telescopic rod 11 and the groove of the connecting rod 3, two groups of telescopic rods 11 are symmetrically installed about the center line of the ring 10, the outer side of the arc block 7 is a slope structure, and the clamping block 13 forms a telescopic structure with the telescopic rod 11 through the movable spring 12.

[0025] In specific implementation, when the liquid sampling metering detection device needs to seal the liquid inlet pipe 6, it is only necessary to squeeze the pressing block 14 on the side of the connecting rod 3, so that the pressing block 14 squeezes the block 13 in the groove of the connecting rod 3. The block 13 is squeezed and shrinks into the groove of the telescopic rod 11, and squeezes the movable spring 12 in the groove of the telescopic rod 11. When the block 13 shrinks into the groove of the telescopic rod 11, there is no limit on the telescopic rod 11, and then the telescopic spring 15 in the groove of the connecting rod 3 will be reset, thereby pushing the telescopic rod 11 and the ring 10 upward. Since the ring 10 is sleeved on the outer surface of the arc block 7, side, and the outer side of the arc block 7 is a slope structure, so the upward movement of the collar 10 does not squeeze the arc block 7, and the arc block 7 is not squeezed by the collar 10, so it does not squeeze the movable rod 8 that runs through the middle of the connecting rod 3. At this time, the movable rod 8 can be pushed downward, so that the movable rod 8 drives the rubber plug 9 at the bottom to move downward. Since the size of the rubber plug 9 is matched with the size of the liquid inlet pipe 6, the inner wall of the liquid inlet pipe 6 will squeeze the rubber plug 9 when the rubber plug 9 moves downward, so that the liquid in the sampling tube 1 can be sealed, thereby avoiding leakage of the liquid in the sampling tube 1;

[0026] On the contrary, the movable rod 8 is moved upward so that the movable rod 8 drives the rubber plug 9 to separate from the liquid inlet pipe 6, and then the ring 10 is pushed downward so that the ring 10 squeezes the arc block 7. The arc block 7 is squeezed and moves toward the middle, thereby squeezing the movable rod 8 passing through the middle of the connecting rod 3, so that the movable rod 8 cannot be extended and retracted along the connecting rod 3. At the same time, the block 13 on one side of the telescopic rod 11 will be reset and connected to the groove of the connecting rod 3 by the movable spring 12, so that the position of the ring 10 can be fixed so that the ring 10 will not move. At this time, the liquid will enter the sampling tube 1 through the liquid inlet, which is convenient for sampling the liquid.

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 It can be seen that after the liquid sampling is completed, the rubber stopper 9 can be pushed by the movable rod 8 to seal the liquid inlet pipe 6, and the arc block 7 can be squeezed by the ring 10, so that the arc block 7 squeezes the movable rod 8 to fix the position of the movable rod 8. By sealing the liquid inlet pipe 6, it is possible to avoid leakage of liquid after sampling is completed, thereby reducing a large amount of liquid loss during the transfer process. At the same time, accurate sampling can be performed according to the sampling needs of the liquid without affecting the detection effect of the liquid.

[0028] A support seat 16 is sleeved on the outer side of the sampling tube 1, and top blocks 17 are penetrated and connected on both sides of the support seat 16. A rotating block 18 is arranged on one side of the top block 17, and a telescopic block 19 is arranged on the same side of the rotating block 18 away from the top block 17. A return spring 20 is connected between the telescopic block 19 and the groove of the support seat 16. A ball 21 is arranged on the side of the rotating block 18 away from the telescopic block 19 through a slide groove, a limiting rod 22 is arranged on one side of the ball 21, and a protrusion 23 is arranged on the side of the limiting rod 22 away from the ball 21. The protrusion 23 is installed on the outer side of the sampling tube 1, and the middle of the rotating block 18 is connected to the groove of the support seat 16 through a rotating shaft.

[0029] In specific implementation, the liquid sampling metering and detection device can adjust the position between the sampling tube 1 and the support seat 16 according to the height of the liquid level. It only needs to squeeze the top blocks 17 on both sides of the support seat 16 so that the top blocks 17 squeeze the rotating block 18. The rotating block 18 is squeezed by the top blocks 17 and rotates through the middle rotating shaft. When the rotating block 18 rotates, it squeezes the reset spring 20 through the telescopic block 19 on one side. At the same time, when the rotating block 18 rotates, it causes the ball 21 to slide along the slide groove on one side of the rotating block 18. A limiting rod 22 is installed on one side of the ball 21, and the limiting rod 22 can only slide horizontally through the support seat 16. Therefore, when the rotating block 18 rotates, it will drive the limiting rod 22 to shrink into the groove of the support seat 16, so that the limiting rod 22 is separated from the protrusion 23 on the surface of the sampling tube 1. Without the limiting of the protrusion 23 and the limiting rod 22 on the sampling tube 1, the sampling tube 1 can be telescoped along the support seat 16.

[0030] When the position of the sampling tube 1 is adjusted, the top block 17 can be loosened. The rotating block 18 will not be squeezed and will rotate in the opposite direction with the telescopic block 19 through the return spring 20, thereby driving the limit rod 22 to move out of the groove of the support seat 16 through the ball 21 and dock with the protrusion 23 on the outside of the sampling tube 1. At this time, the sampling tube 1 can be fixed, and the liquid at different liquid levels can be sampled by adjusting the height of the sampling tube 1, thereby facilitating the sampling and metering of the liquid.

[0031] See also Figure 1-Figure 4 It can be seen that when in use, it is only necessary to squeeze the push rod according to the height of the liquid level, so that the push rod squeezes the rotating block 18 to rotate. When the rotating block 18 rotates, it will drive the limit rod 22 to separate from the protrusion 23 on the surface of the sampling tube 1 through the ball 21, and then the sampling tube 1 can be extended and retracted along the support seat 16, so that the position of the sampling tube 1 can be adjusted according to the height of the liquid level, which is convenient for sampling and measuring the liquid.

[0032] To sum up: when the liquid sampling, metering and detecting device is in use, the liquid inlet pipe 6 at the bottom of the sampling tube 1 can be aligned with the liquid to be sampled, and then the connecting rod 3 is pulled upward, and the connecting rod 3 will drive the piston 2 to move upward. At the same time, the stability of the entire connecting rod 3 during movement is increased by the connecting block 4 and the guide rod 5. The upward movement of the piston 2 will cause the bottom of the piston 2 inside the sampling tube 1 to be in a negative pressure state, so that the liquid can be sucked into the sampling tube 1, which is convenient for sampling the liquid. After the sampling is completed, the liquid can be transferred to the detection equipment, and then the liquid can be detected. This is the use feature of the liquid sampling, metering and detecting device. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid sampling and measuring detection device, comprising: The sampling tube (1) and the liquid inlet tube (6) are characterized in that: a piston (2) is arranged inside the sampling tube (1), a connecting rod (3) penetrating the sampling tube (1) is installed on the top of the piston (2), a connecting block (4) is installed on the outside of the connecting rod (3), both sides of the connecting block (4) are penetrated and connected with guide rods (5), and the liquid inlet tube (6) is installed at the bottom of the sampling tube (1); An arc block (7) is installed on the top of the connecting rod (3); a movable rod (8) is connected through the middle of the connecting rod (3); a rubber plug (9) is installed on the bottom of the movable rod (8); a collar (10) is sleeved on the outer side of the movable rod (8); a telescopic rod (11) that passes through the connecting rod (3) is installed on the bottom of the collar (10); a movable spring (12) is installed inside the telescopic rod (11); a clamping block (13) that passes through the telescopic rod (11) is installed on one side of the movable spring (12); a pressure block (14) that passes through the movable rod (8) is provided on one side of the clamping block (13); and a telescopic spring (15) is connected between the telescopic rod (11) and the groove of the connecting rod (3).

2. A liquid sampling and measuring detection device according to claim 1, characterized in that: The telescopic rods (11) are arranged in two groups symmetrically about the center line of the collar (10), and the outer side of the arc block (7) is an inclined surface structure.

3. A liquid sampling and measuring detection device according to claim 1, characterized in that: The outer side of the sampling tube (1) is sleeved with a support seat (16), and both sides of the support seat (16) are penetrated and connected with top blocks (17).

4. A liquid sampling and measuring detection device according to claim 3, characterized in that: A rotating block (18) is provided on one side of the top block (17).

5. A liquid sampling and measuring detection device according to claim 4, characterized in that: A telescopic block (19) is provided on the same side of the rotating block (18) as the top block (17), and a return spring (20) is connected between the telescopic block (19) and the groove of the support seat (16).

6. A liquid sampling and measuring detection device according to claim 5, characterized in that: A ball (21) is provided on one side of the rotating block (18) away from the telescopic block (19) via a sliding groove, and a limiting rod (22) is provided on one side of the ball (21).

7. A liquid sampling and measuring detection device according to claim 6, characterized in that: A protrusion (23) is provided on the side of the limiting rod (22) away from the ball (21), and the protrusion (23) is installed on the outside of the sampling tube (1).

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