A fluid replenishment system for a fluid measurement device

Abstract

This application relates to the field of fluid measurement equipment, and more particularly to a fluid replenishment system for a fluid measurement device, comprising a pump, a first component for mounting on the wall of an instrument box, and a second component capable of detachably sealing the docking end of the first channel from outside the instrument box; the first component has a first channel and a second channel; one end of the first channel is located outside the instrument box forming the docking end, and the other end is connected to the inlet of the pump; one end of the second channel is connected to a storage container, and the other end is located outside the instrument box connecting to the external environment; when replenishing fluid, this application only requires inserting the pipe of the storage tank containing the solution to be replenished into the docking end, and then turning on the pump to draw the solution from the storage tank into the storage container to achieve replenishment. Thus, compared to the existing method that requires pulling out a hose attached to the instrument box, this solution is much simpler to operate.

Description

Technical Field

[0001] This application relates to the field of fluid measurement-related equipment, and in particular to a fluid replenishment system for a fluid measurement device. Background Technology

[0002] The instrument box for existing fluid measurement devices is sealed inside during daily operation, and related equipment and devices are encapsulated inside. For example, the instrument box contains some liquid storage containers for the daily use of the fluid measurement device. Generally, each liquid storage container stores the solution required by the fluid measurement device, such as cleaning solution, calibration solution, or water.

[0003] As the solution in the storage container is used, the solution level gradually decreases, necessitating periodic replenishment. Currently, in existing technology, to replenish the storage container in the instrument box, a flexible hose is typically extended from the instrument box. When replenishment is needed, the storage tank containing the solution to be replenished is placed near the instrument box, and then the hose extending from the instrument box is connected to the storage tank. The water pump is then started, drawing the solution from the storage tank into the storage container in the instrument box, thus replenishing the solution. In addition, to prevent these hoses from being exposed, a retractor is provided on the instrument box to house the hoses. After use, the hoses are stored in the retractor and the retractor is covered.

[0004] However, this method still has shortcomings in practical use. For example, when replenishment is needed, the tubing needs to be pulled out of the storage tube, and after use, the tubing needs to be put back into the storage tube. The operation is not simple enough and therefore needs to be improved.

[0005] For the aforementioned fluid measuring device and the instrument box with a replenishment hose, refer to the technical solutions disclosed in patent documents such as CN217756307U and CN216013287U. Utility Model Content

[0006] In order to solve at least one of the technical problems mentioned in the background art, the purpose of this application is to provide a fluid replenishment system for a fluid measurement device.

[0007] To achieve the above objectives, this application provides the following technical solution.

[0008] This application provides a liquid replenishment system for a fluid measurement device, used to replenish a liquid storage container inside an instrument box, the liquid replenishment system comprising: A pump, located inside an instrument box, is used to draw the solution to be replenished into a storage container, with the outlet end of the pump connected to the storage container. A first component is used to be installed on the wall of an instrument box. The first component has a first channel and a second channel. One end of the first channel is located outside the instrument box and forms a docking end, and the other end is connected to the liquid inlet of the pump. One end of the second channel is connected to a liquid storage container, and the other end is located outside the instrument box and connects to the external environment. A valve is provided between the second channel and the liquid storage container. The second component is capable of detachably sealing the docking end of the first channel from outside the instrument box.

[0009] Compared with existing technologies, the advantages of this solution are: Firstly, in this application, by setting up a first component with a first channel and a pump, and making the outer end of the first channel a docking end, when liquid replenishment is needed, simply insert the pipeline of the storage tank containing the solution to be replenished into the docking end, and then turn on the pump to draw the solution from the storage tank into the storage container to achieve liquid replenishment. Thus, compared to the existing method of requiring the pulling of a hose attached to the instrument box, this solution is much simpler to operate.

[0010] Secondly, this solution includes setting up a second channel and balancing the gas pressure inside the liquid storage container during replenishment to ensure the normal operation of the replenishment process.

[0011] Finally, in this solution, by setting a second component, the first channel can be blocked when no liquid replenishment is needed, preventing impurities from the external environment from entering the storage tank with the air and contaminating the solution inside the storage tank.

[0012] As an optional embodiment of this application, the valve is a one-way valve, which is configured to allow airflow in the liquid storage container to flow unidirectionally to the second channel.

[0013] As an optional embodiment of this application, the first component is detachably mounted on the wall of the instrument box.

[0014] As an optional embodiment of this application, the first component includes a first part and a cylindrical second part in sequence along its own axial direction. The surface of the first part near the second part at least partially protrudes radially from the second part to serve as an abutment surface. The outer peripheral wall of the second part is provided with a threaded section adapted to a nut. The box wall of the instrument box used to install the first component constitutes a mounting wall. In the assembled state, the second part axially penetrates the mounting wall, the first part is located outside the mounting wall, and the nut is threadedly connected to the second part so that the mounting wall is axially clamped between the nut and the abutment surface.

[0015] As an optional embodiment of this application, the docking end of the first channel is located on the axial end face of the first component, and the end of the second channel located outside the instrument box is located on the peripheral wall of the first component.

[0016] As an optional embodiment of this application, the second component can be at least partially inserted into the mating end in a sealing manner along the axial direction of the mating end to form a plug, thereby sealing the mating end.

[0017] As an optional embodiment of this application, a sealing ring is provided on the outer peripheral wall of the plug.

[0018] As an optional embodiment of this application, the first channel includes an outer channel segment and an inner channel segment sequentially along its own axial direction. The diameter of the outer channel segment is larger than the diameter of the inner channel segment, so that a limiting surface is formed between the outer channel segment and the inner channel segment; the docking end is formed on the outer channel segment.

[0019] As an optional embodiment of this application, the second component is attached to the instrument box or the first component by a connector, the connector being a flexible structure.

[0020] Other effects and advantages of this application are explained in detail in the Detailed Description and Drawings sections.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily apparent from the following detailed description taken in conjunction with the accompanying drawings. Several embodiments of this application are illustrated in the drawings by way of example and not limitation, in which: In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0023] Figure 1 A schematic diagram of the structure of this application is shown. Figure 1 ; Figure 2 A cross-sectional view of the first component of this application is shown; Figure 3 A structural schematic diagram of the first component of this application is shown; Figure 4 A schematic diagram of the structure under the fluid replenishment state of this application is shown; Figure 5 A schematic diagram of the structure in the unused state of this application is shown.

[0024] Explanation of the labels in the diagram: 1. Instrument box; 11. Mounting wall; 12. Liquid storage container; 2. Storage tank; 21. Infusion tubing; 211. Connecting end; 3. Pump; 31. First pipeline; 32. Second pipeline; 321. Check valve; 4. First component; 41. First channel; 411. Outer channel section; 412. Inner channel section; 42. Second channel; 43. First part; 44. Second part; 45. Abutment surface; 5. Second component; 51. Plug; 52. Sealing ring; 6. Connectors; 7. Nuts. Detailed Implementation

[0025] To make the objectives, features, and advantages of this application more apparent and understandable, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] To address the problem of existing instrument boxes that use external hoses for fluid replenishment, where the hose needs to be pulled out during replenishment and then reinserted afterward, this application provides a fluid replenishment system for fluid measurement devices (hereinafter referred to as "this system"). This system replenishes the fluid storage container inside the instrument box. Here, the fluid storage container refers to a container located inside the instrument box that holds a relevant solution, such as a container holding cleaning fluid. This system is mainly used to add the relevant solution to the fluid storage container when the solution in the storage container is exhausted.

[0027] The fluid replenishment system includes: A pump, located inside an instrument box, is used to draw the solution to be replenished into a storage container, with the outlet end of the pump connected to the storage container. A first component is used to be installed on the wall of an instrument box. The first component has a first channel and a second channel. One end of the first channel is located outside the instrument box and forms a docking end, and the other end is connected to the liquid inlet of the pump. One end of the second channel is connected to a liquid storage container, and the other end is located outside the instrument box and connects to the external environment. A valve is provided between the second channel and the liquid storage container. The second component is capable of detachably sealing the docking end of the first channel from outside the instrument box.

[0028] Example like Figures 1-5 As shown, this application provides a fluid replenishment system for a fluid measurement device (hereinafter referred to as the system), which mainly includes a first component 4, a second component 5, a pump 3, etc. The following is a detailed description of each component.

[0029] Figure 1 This diagram shows the structure of the system when applied to instrument box 1, as follows. Figure 1 As shown, the first component 4 is installed on the side wall of the instrument box 1. For ease of explanation, the side wall of the instrument box 1 on which the first component 4 is installed is referred to as the mounting wall 11 in this embodiment. It can be understood that the first component 4 can be installed on the side wall of the instrument box 1 or on other boxes of the instrument box 1. The specific installation can be selected according to actual needs, and no specific limitation is made here.

[0030] Pump 3 is installed inside the instrument box 1. Pump 3 can be a plunger pump or a pump of any other type, without specific limitation. The outlet end of pump 3 (i.e. the end from which pump 3 outputs solution) is connected to the liquid storage container 12 to draw the solution outside the instrument box 1 into the liquid storage container 12 for replenishment.

[0031] Figure 2 A schematic diagram of a first component 4 is shown, which includes a first part 43 and a second part 44 sequentially along its own axial direction; as shown Figure 1 As shown, the axial direction of the first component 4 can also be understood as the direction perpendicular to the mounting wall 11.

[0032] Among them, such as Figure 3 As shown, the first part 43 has a hexagonal structure, the second part 44 is cylindrical, and the outer peripheral wall of the second part 44 is provided with a threaded section. At this time, the shape of the entire first component 4 is similar to a hexagonal bolt. The first part 43 is equivalent to the head end of the bolt, and the second part 44 is equivalent to the shaft section of the bolt. The end face of the first part 43 near the end of the second part 44 serves as the abutment surface 45.

[0033] like Figure 1 The diagram shows a schematic of the structure of the first component 4 mounted on the mounting wall 11 of the instrument box 1. The first component 4 is mounted on the mounting wall 11 by a nut 7, which is adapted to the threaded section of the second part 44. Specifically, a mounting hole is provided in the mounting wall 11, which is perpendicular to the mounting wall 11. The first part 43 is located outside the mounting wall 11. The second part 44 of the first component 4 is axially inserted into the instrument box 1 through the mounting hole. The nut 7 is fitted onto the second part 44 and threadedly connected to the second part 44 and locked. At this time, the mounting wall 11 is clamped between the abutment surface 45 and the nut 7, thus realizing the installation of the first component 4.

[0034] Figure 1 and Figure 2A schematic diagram of the internal structure of the first component 4 is shown. The first component 4 is provided with a first channel 41 and a second channel 42. The first channel 41 is connected to the liquid storage container 12 through a first pipe 31. The pump 3 is installed on the first pipe 31, which is located inside the instrument box 1. At this time, it is equivalent to the inlet end of the pump 3 being connected to one end of the first channel 41, and the outlet end of the pump 3 being connected to the liquid storage container 12.

[0035] The first channel 41 is parallel to the axis of the first component 4, and the two ends of the first channel 41 pass through the two ends of the axis of the first component 4 respectively. The end of the first channel 41 located outside the instrument box 1 forms a docking end, which is used to connect with the storage tank 2 storing the solution to be replenished; the end of the first channel 41 located inside the instrument box 1 is connected to the first pipeline 31.

[0036] When replenishment is needed, the storage tank 2 containing the solution to be replenished is moved to the vicinity of the instrument box 1. The storage tank 2 is connected to an infusion tube 21 for discharging the solution in the storage tank 2. The infusion tube 21 is a flexible tube, and the end of the infusion tube 21 away from the storage tank 2 is used as a plug end 211.

[0037] Figure 4 The diagram shows a schematic of the replenishment process of this application. During replenishment, the plug end 211 of the infusion tube 21 is inserted into the docking end to connect the storage tank 2 with the first channel 41. Then, the pump 3 is turned on, and the solution in the storage tank 2 is sequentially drawn into the storage container 12 through the infusion tube 21, the first channel 41, and the first pipeline 31 to replenish the solution.

[0038] The specific configuration of the insertion end 211 of the infusion tube 21 can be that the end of the infusion tube 21 is directly used as the insertion end 211, or a connector that can be inserted into the mating end of the first channel 41 can be installed at the end of the infusion tube 21. The specific configuration can be selected according to actual needs, and no specific limitation is made here.

[0039] In order to control the insertion depth of the plug 51 and the insertion end 211 of the infusion tube 21 into the first channel 41, in some embodiments, such as Figure 2 As shown, the first channel 41 includes an outer channel segment 411 and an inner channel segment 412 in sequence along its own axial direction. The diameter of the outer channel segment 411 is larger than the diameter of the inner channel segment 412, so that a limiting surface is formed between the outer channel segment 411 and the inner channel segment 412. The docking end is formed on the outer channel segment 411, and the insertion depth of the plug 51 and the insertion end 211 of the infusion tube 21 is limited by the limiting surface.

[0040] The purpose of setting up the second channel 42 is to balance the internal air pressure of the liquid storage container 12 during liquid replenishment. That is, during liquid replenishment, as the liquid level in the liquid storage container 12 rises, the air pressure in the liquid storage container 12 will gradually increase. If too much air pressure is not released, it will affect the continued replenishment of the solution. The second channel 42 is set up based on this.

[0041] like Figure 2 As shown, the second channel 42 is located in the first component 4. It is roughly L-shaped, with one end penetrating the inner end wall of the second part 44 and the other part penetrating the peripheral wall of the first part 43, so that it is exposed to the outside and can communicate with the external environment.

[0042] Figure 3 The connection structure between the second channel 42 and the liquid storage container 12 is shown. The second channel 42 passes through one end of the second part 44 (i.e., the inner end of the second channel 42) and is connected to the liquid storage container 12 through the second pipe 32. At this time, the liquid storage container 12 can be connected to the ambient air pressure outside the instrument box 1 through the second pipe 32 and the second channel 42 to achieve air pressure balance.

[0043] In order to achieve both air pressure balance and prevent impurities in the ambient air from flowing back into the liquid storage container 12 through the second channel 42 and the second pipe 32, in some embodiments, a valve is provided on the first pipe 31. Preferably, the valve is a one-way valve 321. The one-way valve 321 is configured to allow the airflow in the liquid storage container 12 to flow unidirectionally to the second channel 42, and to block it in the opposite direction. In short, the one-way valve 321 only allows the airflow in the liquid storage container 12 to flow to the second channel 42 and then to the ambient environment, while the air in the ambient environment will be intercepted by the one-way valve 321 and prevented from entering the liquid storage container 12.

[0044] The reason for connecting the second channel 42 to the external environment, instead of directly connecting the liquid storage container 12 to the inside of the instrument box 1 to achieve pressure balance, is that if the liquid storage container 12 is directly connected to the inside of the instrument box 1, the solution in the liquid storage container 12 will evaporate into the instrument box 1, affecting the working environment inside the instrument box 1. By connecting the second channel 42 to the external environment, it can be ensured that the solution evaporated from the liquid storage container 12 will not enter the instrument box 1.

[0045] like Figure 2 As shown, in this embodiment, the insertion end of the first channel 41 is formed on the end face of the first part 43, and the end of the second channel 42 that connects to the external environment (denoted as the outer end of the second channel 42) is formed on the outer peripheral wall of the first part 43.

[0046] Figure 1A schematic diagram of the second component 5 is shown. The second component 5 can be at least partially inserted into the mating end along the axial direction of the mating end to form a plug 51, thereby sealing the mating end. It can be seen that the second component 5 is mainly used to seal the second channel 42 when no liquid replenishment is required, so as to prevent impurities in the external environment from flowing into the liquid storage container 12. For details, please refer to... Figure 5 As shown.

[0047] To ensure a tight seal when the plug 51 is inserted, in some embodiments, a sealing ring 52, such as an O-ring, is nested on the outer peripheral wall of the plug 51.

[0048] To prevent the second component 5 from being lost, in some embodiments, such as Figure 1 As shown, the second component 5 is attached to the first component 4 by a connector 6. The connector 6 is a flexible structure. For example, the connector 6 can be made of plastic or a rope. During installation, one end of the connector 6 is fixed to the outer peripheral wall of the first part 43, and the other end is fixed to the first component 4. In this way, the second component 5 can be prevented from being lost accidentally by the connector 6.

[0049] Of course, in some other alternative embodiments, the connector 6 can also be directly fixed to the instrument box 1. The specific choice can be made according to actual needs, and no specific limitation is made here.

[0050] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this application can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this application can be achieved, and this is not limited herein.

[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0052] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A liquid replenishment system for a fluid measuring device, used to replenish a liquid storage container inside an instrument box, characterized in that, The fluid replenishment system includes: A pump, located inside an instrument box, is used to draw the solution to be replenished into a storage container, with the outlet end of the pump connected to the storage container. A first component is used to be installed on the wall of an instrument box. The first component has a first channel and a second channel. One end of the first channel is located outside the instrument box and forms a docking end, and the other end is connected to the liquid inlet of the pump. One end of the second channel is connected to a liquid storage container, and the other end is located outside the instrument box and connects to the external environment. A valve is provided between the second channel and the liquid storage container. The second component is capable of detachably sealing the docking end of the first channel from outside the instrument box.

2. The fluid replenishment system for a fluid measuring device according to claim 1, characterized in that, The valve is a one-way valve, which is configured to allow airflow within the liquid storage container to flow unidirectionally to the second channel.

3. The fluid replenishment system for a fluid measuring device according to claim 1, characterized in that, The first component is detachably mounted on the wall of the instrument box.

4. A fluid replenishment system for a fluid measuring device according to claim 3, characterized in that, The first component comprises a first part and a cylindrical second part in sequence along its own axial direction. The surface of the first part near the second part at least partially protrudes radially from the second part to serve as an abutment surface. The outer peripheral wall of the second part is provided with a threaded section adapted to a nut. The box wall of the instrument box used to install the first component constitutes a mounting wall. In the assembled state, the second part axially penetrates the mounting wall, the first part is located outside the mounting wall, and the nut is threadedly connected to the second part so that the mounting wall is axially clamped between the nut and the abutment surface.

5. A fluid replenishment system for a fluid measuring device according to claim 1, characterized in that, The docking end of the first channel is located on the axial end face of the first component, and the end of the second channel located outside the instrument box is located on the peripheral wall of the first component.

6. A fluid replenishment system for a fluid measuring device according to claim 1, characterized in that, The second component is at least partially capable of being sealed into the mating end along the axial direction of the mating end to form a plug, thereby sealing the mating end.

7. A fluid replenishment system for a fluid measuring device according to claim 6, characterized in that, A sealing ring is provided on the outer peripheral wall of the plug.

8. A fluid replenishment system for a fluid measuring device according to claim 6 or 7, characterized in that, The first channel includes an outer channel segment and an inner channel segment in sequence along its own axis. The diameter of the outer channel segment is larger than the diameter of the inner channel segment, so that a limiting surface is formed between the outer channel segment and the inner channel segment; the docking end is formed on the outer channel segment.

9. A fluid replenishment system for a fluid measuring device according to claim 1, characterized in that, The second component is attached to the instrument box or the first component via a connector, which is a flexible structure.

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