Pneumatic material pumping device

Abstract

The utility model provides a pneumatic material pumping device which comprises a sealing cover, a discharging pipe, an air inlet pipe, an adjusting piece, a flexible sealing piston and a filtering pipe. The sealing cover is detachably and hermetically connected with the storage barrel; the gas inlet pipe is fixedly and hermetically connected with the sealing cover and is used for inputting gas into the storage barrel; a piston opening is formed in the sealing cover, one end of the discharging pipe penetrates through the flexible sealing piston to enter the storage barrel, the outer wall of the discharging pipe abuts against the flexible sealing piston and can move, the adjusting part is arranged above the flexible sealing piston and used for extruding the flexible sealing piston to enter the piston opening, and the flexible sealing piston seals and fixes the discharging pipe under extrusion of the piston opening; the end, entering the storage barrel, of the discharging pipe is detachably connected with a filtering pipe and used for filtering impurities in feed liquid. The position of the discharging pipe of the pneumatic material pumping device can be adjusted, and the pneumatic material pumping device can adapt to the height change of material liquid in the material storage barrel; the bottom end of the discharging pipe is connected with the filtering pipe, so that the discharging and filtering functions are realized; the filter pipe can adopt a zigzag structure to prevent the discharge pipe from being closed after touching the bottom.

Description

Technical Field

[0001] This utility model relates to the field of material extraction equipment technology, specifically to a pneumatic material extraction device. Background Technology

[0002] In the coatings industry, many raw materials are packaged in storage containers for convenient storage and transportation. When needed, the material is simply drawn from the container. Common material extraction methods include electric, pneumatic, and manual extraction. Pneumatic extraction involves inputting compressed air into the storage container, using air pressure to force the liquid material out through the discharge pipe. Devices using this method are compact, simple in structure, and easy to carry.

[0003] However, existing pneumatic material extraction devices also have some problems. For example, the depth to which the discharge pipe extends into the liquid is fixed, which cannot adapt to storage tanks of different heights or changes in the liquid level inside the storage tank. Another example is that the discharge pipe of existing pneumatic material extraction devices may seal due to contact with the bottom wall of the storage tank, resulting in poor material discharge. Furthermore, some pneumatic material extraction devices lack filtration design, which makes it impossible to effectively filter out insoluble impurities in the liquid, resulting in the extracted liquid containing impurities.

[0004] Therefore, it is urgent to propose a solution to address at least one of the aforementioned problems. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this utility model provides a pneumatic material extraction device, the specific technical solution of which is as follows:

[0006] The present invention provides a pneumatic material extraction device, comprising: a sealing cover, a discharge pipe, an air inlet pipe, an adjusting component, a flexible sealing piston, and a filter pipe for filtering solid impurities;

[0007] The sealing cap is used for a detachable threaded sealing connection with the side wall of the inlet / outlet of a common liquid solvent storage tank; the air inlet pipe is fixedly and sealed to the sealing cap, one end of the air inlet pipe is used to enter the interior of the storage tank when the sealing cap is connected to the storage tank, and the other end of the air inlet pipe is used to connect to an external air supply device.

[0008] The sealing cap has a piston port, and the flexible sealing piston is used to be inserted into the piston port to achieve a sealing connection with the sealing cap; the outer diameter of the flexible sealing piston gradually decreases along the direction of insertion into the piston port.

[0009] One end of the discharge pipe is detachably connected to the filter pipe and passes through the flexible sealing piston, for entering the interior of the storage tank when the sealing cover is connected to the storage tank; the outer wall of the discharge pipe abuts against the flexible sealing piston, and the discharge pipe can move vertically relative to the flexible sealing piston; the adjusting member is disposed above the flexible sealing piston for squeezing the flexible sealing piston to insert it into the piston opening, and the flexible sealing piston is used to squeeze and fix the discharge pipe under the squeezing of the adjusting member, and to achieve a seal between it and the discharge pipe.

[0010] In one specific embodiment, the adjusting member is threadedly connected to the sealing cap; the adjusting member is used to rotate relative to the sealing cap to lower and compress the flexible sealing piston into the piston port.

[0011] In one specific embodiment, the lower end of the adjusting member is connected to the flexible sealing piston.

[0012] In one specific embodiment, the flexible sealing piston includes any one of a rubber piston, a silicone piston, and a soft polyurethane piston.

[0013] In one specific embodiment, the discharge pipe and the filter pipe are detachably connected by a threaded connection.

[0014] In one specific embodiment, a filter screen is provided in the filter tube.

[0015] In one specific embodiment, the inner wall of the filter tube is provided with a support protrusion, which supports the lower part of the filter screen.

[0016] In one specific embodiment, the diameter of the filter tube is larger than the diameter of the discharge tube, the inner wall of the filter tube is provided with internal threads, the outer wall of the discharge tube is provided with external threads, and the filter tube and the discharge tube are detachably connected by means of the connection between the internal threads and the external threads.

[0017] In one specific embodiment, the end of the filter tube away from the discharge tube has a notch structure.

[0018] In one specific embodiment, the notch structure includes a serrated structure.

[0019] This utility model has at least the following beneficial effects:

[0020] This utility model provides a pneumatic material extraction device in which the discharge pipe passes through a flexible sealing piston and can move vertically relative to the flexible sealing piston. The discharge pipe can be adjusted to the required position by vertical movement. Through the tight fit between the flexible sealing piston and the piston opening, the flexible sealing piston squeezes, fixes and seals the discharge pipe, realizing the flexible adjustment function of the discharge pipe position. The discharge pipe can adapt to storage tanks of different sizes and liquid levels of different heights.

[0021] Furthermore, this invention achieves the function of filtering insoluble solid impurities from the liquid by setting up a filter tube and its internal filter screen. The filter screen can be installed on the support protrusion on the inside of the filter tube, ensuring stable installation. The filter tube is detachable, facilitating the installation of the filter screen or the removal of the filter screen for cleaning or replacement. Additionally, different mesh sizes of filter screens can be set according to actual needs to improve filtration efficiency.

[0022] Furthermore, the end of the filter tube away from the discharge tube of this utility model is provided with a notch structure. The notch structure ensures that the discharge tube will not seal when it touches the bottom, and the liquid can still be smoothly extracted, resulting in a good user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model when connected to an external storage tank;

[0026] Figure 3 This is a schematic diagram of the structure of the discharge pipe and filter pipe of this utility model.

[0027] Figure label:

[0028] 1-Storage hopper; 11-Inlet / outlet; 12-Threaded; 2-Sealing cap; 21-Piston port; 22-First thread structure; 23-Second thread structure; 3-Discharge pipe; 31-External thread; 4-Air inlet pipe; 5-Flexible sealing piston; 6-Adjusting component; 7-Filter screen; 8-Filter pipe; 81-Internal thread; 82-Supporting protrusion; 9-Notch structure. Detailed Implementation

[0029] Various embodiments of the present invention will be described more fully below. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0030] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of the present invention, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0031] In various embodiments of this utility model, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0032] The terms used in the various embodiments of this utility model (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this utility model, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0033] It should be noted that, in this utility model, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Please refer to Figure 1 and Figure 2 The present invention provides a pneumatic material extraction device, comprising: a sealing cover 2, a discharge pipe 3, an air inlet pipe 4, a flexible sealing piston 5, an adjusting component 6, and a detachable filter pipe 8 for filtering solid impurities from the liquid material.

[0035] Specifically, the side wall of the sealing cap 2 has a first threaded structure 22, which allows for a detachable and sealed connection between the sealing cap 2 and the side wall threads 12 of the inlet / outlet 11 of the external ordinary liquid solvent storage tank 1. The sealing cap 2 can be circular, and the inlet / outlet 11 of the storage tank 1 is circular to match the sealing cap 2. The threads 12 are ring-shaped threads located on the inner wall of the inlet / outlet 11. Figure 2 Only the threaded portion 12 is shown. When the sealing cap 2 is separated from the storage tank 1, liquid can be added to the storage tank 1 through the inlet / outlet 11. The air inlet pipe 4 is fixedly and sealed to the sealing cap 2. One end of the air inlet pipe 4 is used to pass through the sealing cap 2 and enter the interior of the storage tank 1 when the sealing cap 2 is connected to the storage tank 1, and the other end of the air inlet pipe 4 is used to connect to an external air supply device. For example, the external air supply device can be a pneumatic pump, which is used to supply compressed air into the storage tank 1 through the air inlet pipe 4.

[0036] The sealing cap 2 has a piston port 21, into which the flexible sealing piston 5 is inserted, thereby achieving a tight fit between the piston port 21 and the sealing cap 2. Preferably, the lower outer diameter of the flexible sealing piston 5 is adapted to the diameter of the piston port 21, and the outer diameter of the flexible sealing piston 5 gradually decreases along the direction in which it is inserted into the piston port 21. Exemplarily, the flexible sealing piston 5 can be made of any one of rubber, silicone, and soft polyurethane.

[0037] Furthermore, one end of the discharge pipe 3 is detachably connected to the filter pipe 8 and passes through the flexible sealing piston 5 into the storage tank 1. The other end of the storage tank 3 is located outside, and the outer wall of the discharge pipe 3 abuts against the flexible sealing piston 5. The discharge pipe 3 can move vertically relative to the flexible sealing piston 5. When the flexible sealing piston 5 is inserted into the piston port 21, based on the tight fit with the piston port 21, the flexible sealing piston 5 can squeeze the outer wall of the discharge pipe 3 under the squeezing action of the adjusting member 6, thereby fixing and sealing the discharge pipe 3.

[0038] In use, the device is first installed on the storage tank 1 containing ordinary liquid solvent via the threads on the inlet / outlet 11. After installation, the sealing cap 2 is tightened and sealed to the inlet / outlet 11 of the storage tank. When it is necessary to extract the liquid, the position of the outlet pipe 3 is first adjusted by moving the outlet pipe 3 vertically relative to the flexible sealing piston 5, thereby adjusting the depth of the outlet pipe 3 into the liquid. After adjusting the position of the outlet pipe 3, the flexible sealing piston 5 is inserted into the piston opening 21, and the flexible sealing piston 5 fits tightly with the piston opening 21. Rotating the adjusting member 6 causes the flexible sealing piston 5 to deform under the pressure of the adjusting member 6, thereby pressing the outer wall of the outlet pipe 3, thus fixing and sealing the position of the outlet pipe 3. Then, the air inlet pipe 4 is connected to an external air supply device, which supplies compressed air into the storage tank 1. Under the action of the compressed air, the liquid is filtered through the filter pipe 8 and then forced into the outlet pipe 3, finally being extracted from the external end of the outlet pipe 3, thus realizing the extraction of the liquid. During the input of compressed air, the discharge pipe 3 will have outward pressure. Therefore, when the discharge pipe 3 is squeezed outward, the flexible sealing piston 5 will give the discharge pipe 3 a squeezing pressure in the opposite direction, thereby further fixing and sealing the discharge pipe 3.

[0039] As can be seen, during the use of this utility model, the position of the discharge pipe 3 can be flexibly adjusted according to the size of the storage tank 1 and the liquid level, which has good flexibility and applicability.

[0040] In this embodiment, please refer again. Figure 1 and Figure 2 The sealing cap 2 is provided with a vertically distributed second threaded structure 23. The adjusting member 6 is threadedly connected to the second threaded structure 23, thereby allowing it to rotate upwards or downwards relative to the sealing cap 2. In this embodiment, during the downward rotation of the adjusting member 6 relative to the sealing cap 2, the adjusting member 6 will compress the flexible sealing piston 5, thereby inserting it into the piston opening 21. Based on this, in this embodiment, the position of the discharge pipe 3 can be finally fixed by rotating the adjusting member 6. When the position of the discharge pipe 3 needs to be readjusted, the adjusting member 6 is rotated upwards, releasing the compression of the flexible sealing piston 5 by the adjusting member 6, thus releasing the tight fit between the flexible sealing piston 5 and the piston opening 21, thereby releasing the fixation of the discharge pipe 3 and allowing the position of the discharge pipe 3 to be readjusted. In other embodiments, the adjusting member 6 and the sealing cap 2 can also be connected in other ways.

[0041] In one case, the lower end of the adjusting member 6 can also be connected to the flexible sealing piston 5, so that the flexible sealing piston 5 can be disengaged from the piston port 21 during the upward movement (or it can remain disengaged, so that the tight fit between the flexible sealing piston 5 and the piston port 21 is released), without the need to manually pull out the flexible sealing piston 5.

[0042] In one specific embodiment, a filter screen 7 is provided in the filter tube 8. The filter screen 7 enables the removal of insoluble solid impurities in the liquid during the extraction process, thereby improving the purity of the extracted liquid.

[0043] Specifically, please refer to Figure 3 One end of the discharge pipe 3 that enters the storage tank 1 is detachably connected to the filter pipe 8 via a threaded connection. The diameter of the filter pipe 8 is larger than that of the discharge pipe 3. The inner wall of the filter pipe 8 is provided with an inner thread 81, and the outer wall of the discharge pipe 3 is provided with an outer thread 31. The filter pipe 8 and the discharge pipe 3 are detachably connected by the inner thread 81 and the outer thread 31. The inner wall of the filter pipe 8 is provided with a support protrusion 82, which supports the lower part of the filter screen 7. Based on this, in actual use, the filter pipe 8 can be easily removed to install the filter screen 7 or to remove the filter screen 7 for replacement or cleaning. Optionally, the number of filter screens 7 can be selected adaptively according to the actual situation, and no specific limitation is made here.

[0044] In one specific embodiment, please refer to Figure 1 The filter tube 8 has a notch 9 at the end furthest from the discharge pipe 3. Understandably, the notch 9 prevents a seal from forming when the filter tube 8 abuts against the bottom wall of the storage tank 1, thus preventing the liquid from entering the filter tube 8 and discharge pipe 3. The liquid can still enter the filter tube 8 and discharge pipe 3 through the notch 9, ensuring that the device can still pump material normally even when the filter tube 8 touches the bottom, thereby improving the reliability of the device. For example, the notch 9 can be... Figures 1 to 3 The serrated structure shown is not limited to a serrated structure. The notch structure 9 can be located at the bottom of the filter tube 8 or on the side wall of the filter tube 8; no specific limitation is made here. In practical applications, different structures and positions of the notch structure 9 can be made according to specific circumstances.

[0045] In summary, the pneumatic material extraction device provided by this utility model has a discharge pipe 3 that passes through a flexible sealing piston 5 and can move vertically relative to the flexible sealing piston 5. The discharge pipe 3 is adjusted to the required position by vertical movement. Through the tight cooperation between the flexible sealing piston 5 and the piston port 21, the flexible sealing piston 5 squeezes and fixes the discharge pipe 3, thereby realizing the flexible adjustment function of the position of the discharge pipe 3. The discharge pipe 3 can adapt to storage tanks 1 of different sizes and liquid levels of different heights.

[0046] Furthermore, this invention achieves the function of filtering insoluble solid impurities from the liquid by setting up a filter tube 8 and its internal filter screen 7. The filter screen 7 can be installed on the support protrusion 82 inside the filter tube 8, ensuring stable installation. The filter tube 8 is detachable, facilitating the installation of the filter screen 7 or the removal of the filter screen 7 for cleaning or replacement. Additionally, different mesh sizes of the filter screen 7 can be set according to actual needs to improve filtration efficiency.

[0047] Furthermore, the end of the filter tube 8 away from the discharge tube 3 is provided with a notch structure 9. The notch structure 9 ensures that the discharge tube 3 does not seal when it touches the bottom, and the liquid can still be smoothly extracted, providing a good user experience.

[0048] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing this utility model.

[0049] Those skilled in the art will understand that the modules in the apparatus of the implementation scenario can be distributed within the apparatus of the implementation scenario as described, or they can be located in one or more apparatuses different from this implementation scenario, with corresponding changes. The modules of the above-described implementation scenario can be combined into one module, or they can be further divided into multiple sub-modules.

[0050] The serial numbers of the above-mentioned utility models are for descriptive purposes only and do not represent the superiority or inferiority of the implementation scenarios.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pneumatic material extraction device, characterized in that, include: Sealing cap, discharge pipe, air inlet pipe, regulating components, flexible sealing piston, and filter pipe for filtering solid impurities; The sealing cap is used for a detachable threaded sealing connection with the side wall of the inlet / outlet of a common liquid solvent storage tank; the air inlet pipe is fixedly and sealed to the sealing cap, one end of the air inlet pipe is used to enter the interior of the storage tank when the sealing cap is connected to the storage tank, and the other end of the air inlet pipe is used to connect to an external air supply device. The sealing cap has a piston port, and the flexible sealing piston is used to be inserted into the piston port to achieve a sealing connection with the sealing cap; the outer diameter of the flexible sealing piston gradually decreases along the direction of insertion into the piston port, and the flexible sealing piston includes any one of rubber piston, silicone piston and soft polyurethane piston; One end of the discharge pipe is detachably connected to the filter pipe and passes through the flexible sealing piston, for entering the interior of the storage tank when the sealing cover is connected to the storage tank; the outer wall of the discharge pipe abuts against the flexible sealing piston, and the discharge pipe can move vertically relative to the flexible sealing piston; the adjusting member is disposed above the flexible sealing piston and is used to squeeze the flexible sealing piston to insert it into the piston opening, and the flexible sealing piston is used to squeeze and fix the discharge pipe under the squeezing of the adjusting member, and to achieve a seal between it and the discharge pipe; The filter tube has a notch structure at one end away from the discharge tube. The notch structure includes a serrated structure so that the filter tube does not seal when it comes into contact with the bottom wall of the storage tank.

2. The pneumatic material extraction device according to claim 1, characterized in that, The adjusting member is threadedly connected to the sealing cap; the adjusting member is used to rotate relative to the sealing cap to lower and compress the flexible sealing piston into the piston port.

3. A pneumatic material extraction device according to claim 1 or 2, characterized in that, The lower end of the adjusting member is connected to the flexible sealing piston.

4. The pneumatic material extraction device according to claim 1, characterized in that, The discharge pipe and the filter pipe are detachably connected by a threaded connection.

5. A pneumatic material extraction device according to claim 1, characterized in that, A filter screen is installed in the filter tube.

6. A pneumatic material extraction device according to claim 5, characterized in that, The inner wall of the filter tube is provided with a support protrusion, which supports the lower part of the filter screen.

7. A pneumatic material extraction device according to claim 1 or 4, characterized in that, The diameter of the filter tube is larger than that of the discharge tube. The inner wall of the filter tube is provided with internal threads, and the outer wall of the discharge tube is provided with external threads. The filter tube and the discharge tube are detachably connected by means of the internal threads and the external threads.

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