Fluid sampling device

By designing the coordinated movement of the stirring rod and the extrusion block in the fluid sampling device, uniform stirring of the fluid and multiple samplings are achieved, solving the problems of low sampling efficiency and small sample number in the existing device, and improving the accuracy of the detection results.

CN223272234UActive Publication Date: 2025-08-26SHANGHAI ZONGYEE AUTOMATIC CONTROL SYST CO LTD
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Patent Information

Application Number
CN202422465920.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-08-26
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

The existing fluid sampling device cannot achieve continuous sampling, resulting in low sampling efficiency and small sample size, affecting the accuracy of the detection results.

Method used

A fluid sampling device is designed to drive the coordinated movement of the stirring rod and the extrusion block by driving the assembly to achieve uniform stirring and negative pressure absorption of liquids. Multiple sampling is achieved by using the intermittent movement of the conveyor, and combined with the reset action of the elastic components, the rich collection of samples is achieved.

Benefits of technology

The uniform stirring of the fluid and multiple sampling are achieved, which improves the sampling efficiency and representativeness of the samples, and ensures the accuracy of the detection results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fluid sampling device which comprises a shell, a driving assembly, a transmission assembly, a transmission mechanism, a mounting rack, a discharge pipe, an extrusion block and a collecting tank, when the fluid sampling device is used, a conveyor intermittently conveys the collecting tank to the bottom of a discharge port, the driving assembly drives the transmission assembly and the transmission mechanism to operate, and the transmission assembly drives a stirring rod to rotate; a stirring rod rotates to stir liquid in a storage cavity, so that the liquid in the storage cavity flows more uniformly, a transmission mechanism drives an extrusion block to reciprocate, the extrusion block slides towards one side far away from a through hole, at the moment, negative pressure is generated in a sampling cavity, the negative pressure is generated in the sampling cavity, and then the liquid in the storage cavity is sucked through the through hole; in the reset process of the extrusion block, liquid extracted from the sampling cavity is extruded into the collecting groove in the bottom through the discharging opening, the operation is repeated, the placed collecting groove is intermittently conveyed to the bottom of the discharging pipe in cooperation with the conveyor, then multiple times of sampling can be achieved, and the sampled samples are richer.
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Description

Technical Field

[0001] The utility model relates to a sampling device, in particular to a fluid sampling device. Background Art

[0002] Currently, in industrial production, some fluid products are often stored in tanks. During the process of transporting the fluid to the tank, the quality and quality of the fluid need to be tested in real time. During this process, a sampling device is required to take samples. Existing sampling devices cannot achieve continuous sampling during the sampling process, resulting in low sampling efficiency. The small number of samples collected also leads to inaccurate sampling test results. Therefore, a fluid sampling device is needed to solve this problem. Utility Model Content

[0003] The purpose of the present utility model is to provide a fluid sampling device to solve the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A fluid sampling device comprises a housing, a storage chamber and a sampling chamber are defined in the housing, a conveyor is provided at the bottom of the housing, a collection trough is provided on the conveyor, the storage chamber and the sampling chamber are communicated via a through hole, a discharge pipe is provided at the bottom of the sampling chamber, a one-way valve is provided in the discharge pipe and the through hole, an extrusion block is slidably installed in the sampling chamber, and a mounting frame is installed on the housing;

[0006] a stirring rod, the stirring rod being arranged in the storage chamber;

[0007] A drive assembly, wherein the drive assembly is mounted on the mounting frame;

[0008] A transmission assembly, one end of the transmission assembly is connected to the drive assembly, and the other end is connected to the stirring rod;

[0009] The transmission mechanism has one end connected to the driving assembly and the other end connected to the extrusion block.

[0010] As a further solution of the present invention: the driving assembly includes a driving member, the driving member is installed on the mounting frame, a driving shaft is installed at the output end of the driving member, and the driving member is used to drive the driving shaft to rotate.

[0011] As a further solution of the present invention: the transmission assembly includes a driven shaft, one end of which is rotatably connected to the mounting bracket;

[0012] A rotating shaft is rotatably connected to the housing and has one end extending into the storage chamber. The stirring rod is mounted on the rotating shaft.

[0013] A connecting unit, one end of the connecting unit is connected to the driving shaft, and the other end is connected to the driven shaft;

[0014] A connecting mechanism, one end of the connecting mechanism is connected to the rotating shaft, and the other end is connected to the driven shaft.

[0015] As a further solution of the present invention: the transmission mechanism includes a half gear, the half gear is mounted on the drive shaft, one side of the half gear is meshed with a toothed plate, one end of the toothed plate is mounted with a crossbar, the crossbar extends away from the toothed plate into the sampling cavity and is connected to the extrusion block in the sampling cavity;

[0016] An elastic component, one end of which is connected to the extrusion block, and the other end of which is connected to the side wall of the sampling cavity.

[0017] As a further solution of the present invention: the elastic component is a spring.

[0018] Compared with the prior art, the beneficial effect of the present invention is that when the device is in use, the conveyor intermittently transports the collection trough to the bottom of the discharge port, the driving member drives the drive shaft connected thereto to rotate, the rotation of the drive shaft drives the driven shaft connected thereto to rotate through the connecting unit, the rotation of the driven shaft drives the rotating shaft to rotate through the connecting mechanism, the rotation of the rotating shaft drives the stirring rod connected thereto to rotate, and the rotation of the stirring rod can stir the liquid in the storage chamber, so that the liquid in the storage chamber flows more evenly, the rotation of the installed drive shaft drives the half gear to rotate, the rotation of the half gear engages with the tooth plate to drive the extrusion block at one end of the crossbar to slide toward the side away from the through hole, at this time the elastic member will be compressed, and a negative pressure will be generated in the sampling chamber, the negative pressure generated in the sampling chamber will suck the liquid in the storage chamber through the through hole, when the half gear is disengaged from the tooth plate, the extrusion block connected thereto is driven to reset under the action of the elastic force, and the liquid extracted from the sampling chamber is squeezed into the collection trough at the bottom through the discharge port, and this is repeated, and the collection trough is intermittently transported to the bottom of the discharge pipe by the conveyor, thereby achieving multiple sampling, making the sampled samples richer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a fluid sampling device.

[0020] Figure 2 Schematic diagram of the structure of the half gear.

[0021] Figure 3 Schematic diagram of the structure of the connecting mechanism.

[0022] In the figure: 1. Shell; 2. Conveyor; 3. Collecting trough; 4. Mounting frame; 5. Storage chamber; 6. Driving shaft; 7. Connecting unit; 8. Driven shaft; 9. Rotating shaft; 10. Connecting mechanism; 11. Through hole; 12. Sampling chamber; 13. Discharge pipe; 14. Extrusion block; 15. Tooth plate; 16. Cross bar; 17. Elastic component; 18. Half gear; 19. Stirring rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1 to 3 As an embodiment of the present utility model, a fluid sampling device includes a housing 1, a storage chamber 5 and a sampling chamber 12 are formed on the housing 1, a conveyor 2 is provided at the bottom of the housing 1, a collecting trough 3 is provided on the conveyor 2, the storage chamber 5 is connected to the sampling chamber 12 through a through hole 11, a discharge pipe 13 is provided at the bottom of the sampling chamber 12, a one-way valve is provided in the discharge pipe 13 and the through hole 11, an extrusion block 14 is slidably installed in the sampling chamber 12, and a mounting frame 4 is installed on the housing 1;

[0025] A stirring rod 19, the stirring rod 19 is arranged in the storage chamber 5;

[0026] A drive assembly is mounted on the mounting frame 4;

[0027] A transmission assembly, one end of which is connected to the drive assembly and the other end is connected to the stirring rod 19;

[0028] The transmission mechanism has one end connected to the driving assembly and the other end connected to the extrusion block 14 .

[0029] The liquid in the storage chamber 5 is stirred by the rotation of the stirring rod 19, so that the liquid in the storage chamber 5 flows more evenly, and the subsequent sampling sample is more representative. The installed transmission mechanism drives the extrusion block 14 connected thereto to move back and forth, and the extrusion block 14 slides to the side away from the through hole 11. At this time, a negative pressure is generated in the sampling chamber 12, and the negative pressure is generated in the sampling chamber 12, and the liquid in the storage chamber 5 is sucked in through the through hole 11. During the resetting process of the extrusion block 14, the liquid extracted from the sampling chamber 12 is squeezed into the collection chamber 3 at the bottom through the discharge port. This is repeated, and the collection chamber 3 is intermittently transported to the bottom of the discharge pipe 13 by the conveyor 2, so that multiple sampling can be achieved, making the sampled samples richer.

[0030] As an embodiment of the present invention, the driving assembly includes a driving member, which is mounted on a mounting frame 4 , and a driving shaft 6 is mounted on an output end of the driving member, and the driving member is used to drive the driving shaft 6 to rotate.

[0031] In this embodiment, the driving member drives the driving shaft 6 connected thereto to rotate, and the rotation of the driving shaft 6 drives the transmission assembly and transmission mechanism connected thereto to operate, and the transmission assembly drives the stirring rod 19 connected thereto to rotate. The rotation of the stirring rod 19 can stir the liquid in the storage chamber 5, so that the liquid in the storage chamber 5 flows more evenly, making the subsequent sampling sample more representative. The installed transmission mechanism drives the extrusion block 14 connected thereto to move back and forth, and the extrusion block 14 slides to the side away from the through hole 11. At this time, negative pressure is generated in the sampling chamber 12, and the negative pressure generated in the sampling chamber 12 sucks the liquid in the storage chamber 5 through the through hole 11. During the resetting process of the extrusion block 14, the liquid extracted from the sampling chamber 12 is squeezed into the collection tank 3 at the bottom through the discharge port, and this is repeated, and the conveyor 2 cooperates to intermittently transport the placed collection tank 3 to the bottom of the discharge pipe 13, so that multiple sampling can be achieved, making the sampled samples richer.

[0032] Furthermore, the driving component may be a stepping motor or a servo motor, etc., which will not be described in detail here.

[0033] As an embodiment of the present utility model, the transmission assembly includes a driven shaft 8, one end of which is rotatably connected to the mounting bracket 4;

[0034] A rotating shaft 9 is rotatably connected to the housing 1 and has one end extending into the storage chamber 5. A stirring rod 19 is mounted on the rotating shaft 9;

[0035] A connecting unit 7, one end of the connecting unit 7 is connected to the driving shaft 6, and the other end is connected to the driven shaft 8;

[0036] The connecting mechanism 10 has one end connected to the rotating shaft 9 and the other end connected to the driven shaft 8 .

[0037] In this embodiment, the installed driving shaft 6 rotates through the connecting unit 7 to drive the driven shaft 8 connected thereto to rotate, and the driven shaft 8 rotates through the connecting mechanism 10 to drive the rotating shaft 9 to rotate, and the rotating shaft 9 rotates to drive the stirring rod 19 connected thereto to rotate. The stirring rod 19 rotates to stir the liquid in the storage chamber 5, so that the liquid in the storage chamber 5 flows more evenly.

[0038] Furthermore, the connecting unit 7 may be a gear set or a pulley set, etc., which will not be described in detail here.

[0039] Furthermore, the connecting mechanism 10 may be a gear set or a combination of a worm and a worm wheel, which will not be described in detail here.

[0040] As an embodiment of the present invention, the transmission mechanism includes a half gear 18, which is mounted on the drive shaft 6. A toothed plate 15 is engaged on one side of the half gear 18. A crossbar 16 is mounted on one end of the toothed plate 15. The crossbar 16 extends from one end of the toothed plate 15 into the sampling chamber 12 and is connected to the extrusion block 14 in the sampling chamber 12.

[0041] The elastic component 17 has one end connected to the extrusion block 14 and the other end connected to the side wall of the sampling cavity 12 .

[0042] In this embodiment, the installed drive shaft 6 rotates to drive the half gear 18 to rotate, and the half gear 18 rotates to engage with the tooth plate 15 to drive the extrusion block 14 at one end of the cross bar 16 to slide to the side away from the through hole 11. At this time, the elastic component 17 will be compressed, and a negative pressure will be generated in the sampling chamber 12. The negative pressure generated in the sampling chamber 12 will then suck the liquid in the storage chamber 5 through the through hole 11. When the half gear 18 is disengaged from the tooth plate 15, the extrusion block 14 connected thereto is reset under the action of elastic force, and the liquid extracted from the sampling chamber 12 is squeezed into the collection tank 3 at the bottom through the discharge port. This is repeated, and the conveyor 2 is used to intermittently transport the placed collection tank 3 to the bottom of the discharge pipe 13, so that multiple sampling can be achieved, making the sampled samples richer.

[0043] As an embodiment of the present invention, the elastic component 17 is a spring.

[0044] In this embodiment, the elastic component 17 is a spring. When the extrusion block 14 slides toward the side away from the through hole 11 through the provided spring, the elastic component 17 will be compressed to generate elastic force. When the half gear 18 is disengaged from the tooth plate 15, the extrusion block 14 connected thereto is driven to reset under the action of the elastic force, and the liquid extracted from the sampling chamber 12 is squeezed into the collection tank 3 at the bottom through the discharge port.

[0045] The working principle of the present invention is as follows: when the device is in use, the conveyor 2 intermittently transports the collecting trough 3 to the bottom of the discharge port, the driving member drives the driving shaft 6 connected thereto to rotate, the driving shaft 6 rotates through the connecting unit 7 to drive the driven shaft 8 connected thereto to rotate, the driven shaft 8 rotates through the connecting mechanism 10 to drive the rotating shaft 9 to rotate, the rotating shaft 9 rotates to drive the stirring rod 19 connected thereto to rotate, the stirring rod 19 rotates to stir the liquid in the storage chamber 5, so that the liquid in the storage chamber 5 flows more evenly, the installed driving shaft 6 rotates to drive the half gear 18 to rotate, the half gear 18 rotates to engage with the tooth plate 15 to drive The extrusion block 14 at one end of the cross bar 16 slides to the side away from the through hole 11. At this time, the elastic component 17 will be compressed, and negative pressure will be generated in the sampling chamber 12. The negative pressure generated in the sampling chamber 12 will then suck the liquid in the storage chamber 5 through the through hole 11. When the half gear 18 is disengaged from the tooth plate 15, the extrusion block 14 connected thereto is reset under the action of elastic force, and the liquid extracted from the sampling chamber 12 is squeezed into the collection tank 3 at the bottom through the discharge port. This is repeated, and the conveyor 2 is used to intermittently transport the placed collection tank 3 to the bottom of the discharge pipe 13, so that multiple sampling can be achieved, making the sampled samples richer.

[0046] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A fluid sampling device comprising a housing, characterized in that: The housing is provided with a storage chamber and a sampling chamber, a conveyor is provided at the bottom of the housing, a collecting trough is provided on the conveyor, the storage chamber and the sampling chamber are connected through a through hole, a discharge pipe is provided at the bottom of the sampling chamber, a one-way valve is provided in the discharge pipe and the through hole, an extrusion block is slidably installed in the sampling chamber, and a mounting frame is installed on the housing; a stirring rod, the stirring rod being arranged in the storage chamber; A drive assembly, wherein the drive assembly is mounted on the mounting frame; A transmission assembly, one end of the transmission assembly is connected to the drive assembly, and the other end is connected to the stirring rod; The transmission mechanism has one end connected to the driving assembly and the other end connected to the extrusion block.

2. A fluid sampling device according to claim 1, characterized in that: The driving assembly includes a driving member, which is installed on a mounting frame. A driving shaft is installed at the output end of the driving member, and the driving member is used to drive the driving shaft to rotate.

3. A fluid sampling device according to claim 2, characterized in that: The transmission assembly includes a driven shaft, one end of which is rotatably connected to the mounting frame; A rotating shaft is rotatably connected to the housing and has one end extending into the storage chamber. The stirring rod is mounted on the rotating shaft. A connecting unit, one end of the connecting unit is connected to the driving shaft, and the other end is connected to the driven shaft; A connecting mechanism, one end of the connecting mechanism is connected to the rotating shaft, and the other end is connected to the driven shaft.

4. A fluid sampling device according to claim 2, characterized in that: The transmission mechanism includes a half gear, which is mounted on the drive shaft, a toothed plate meshing on one side of the half gear, a crossbar mounted on one end of the toothed plate, and an end of the crossbar extending away from the toothed plate into the sampling cavity and connected to an extrusion block in the sampling cavity; An elastic component, one end of which is connected to the extrusion block, and the other end of which is connected to the side wall of the sampling cavity.

5. A fluid sampling device according to claim 4, characterized in that: The elastic component is a spring.