Foam extraction device

Abstract

The utility model discloses a foam extraction device which comprises a device body, the device body comprises a first extraction assembly and a second extraction assembly which are detachably connected, the first extraction assembly is hollow to form a first cavity with a downward opening, and the second extraction assembly is hollow to form a second cavity with an upward opening. The first extraction assembly comprises a first cavity and a second cavity, the first cavity and the second cavity are communicated up and down, an extraction opening is formed in the end, away from the opening, of the second extraction assembly, a partition piece used for partition is arranged between the first extraction assembly and the second extraction assembly in an inserted mode, and the partition piece is detachably connected with the first extraction assembly. According to the utility model, the problem of inaccurate calculation of the foam foaming ratio in the existing foam shield construction can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of extraction devices, and particularly relates to a foam extraction device. Background Art

[0002] During the construction of a foam shield tunnel, the foaming ratio is the ratio of the volume of foam generated under standard atmospheric pressure to the volume of the required foam agent solution.

[0003] The traditional method for obtaining the foaming ratio is to use a container with a fixed volume to hold the foam, measure the volume of the foam in the container, and then divide it by the volume of the required foam agent solution to obtain the foaming ratio of the foam.

[0004] However, when using the traditional method to hold the foam, some air will inevitably be mixed in and pores will be generated, resulting in a deviation in the measured volume of the foam; when measuring the required foam agent solution, since it is impossible to ensure that the foam agent foams 100%, the measured volume of the foam agent solution is likely to deviate, leading to inaccurate calculation of the foaming ratio of the foam in the foam shield tunnel construction. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a foam extraction device to solve the technical problem of inaccurate calculation of the foaming ratio of the foam in the existing foam shield tunnel construction.

[0006] The technical solution adopted to solve the above technical problem:

[0007] The utility model discloses a foam extraction device, which includes a device body. The device body includes a first extraction component and a second extraction component that are detachably connected. The first extraction component is hollow to form a first chamber with an opening facing downwards, and the second extraction component is hollow to form a second chamber with an opening facing upwards. The first chamber and the second chamber are vertically communicated. One end of the second extraction component far away from the opening is provided with an extraction port. A partition for partitioning is inserted between the first extraction component and the second extraction component, and the partition is detachably connected to the first extraction component.

[0008] The utility model has at least the following beneficial effects: Before extracting the foam, connect the first extraction component and the second extraction component, and insert the end of the device body with the extraction port into the foam generated by the foam agent solution to extract the foam, so that the foam is extracted into the first chamber communicated with the second chamber, which can reduce the air entering the device body and avoid air mixing into the foam to generate pores, resulting in an increase in the finally measured volume of the foam and affecting the accuracy of the foaming ratio.

[0009] After extracting the foam, insert a spacer, fix the spacer to the first extraction component, and remove the second extraction component. At this time, the spacer and the first extraction component surround and collect the foam. Measure the volume and weight of the foam in the first chamber. Then, the volume of the foaming agent solution used to generate the foam in the first chamber can be calculated by dividing the foam weight by the density of the foaming agent. Finally, divide the foam volume by the volume of the foaming agent solution to obtain an accurate foaming ratio.

[0010] As a further improvement of the above technical solution, the first extraction component and the second extraction component are bolted together.

[0011] With the above arrangement, the first extraction component and the second extraction component are stably connected, preventing offset that may cause the first chamber and the second chamber to intersect and affect the collection of foam in the first chamber.

[0012] As a further improvement of the above technical solution, at least two first connection holes are provided at one end of the first extraction component facing the opening, and at least two second connection holes are provided at one end of the second extraction component facing the opening. The first connection holes and the second connection holes are vertically opposite and are both internally threaded holes. The first connection holes and the second connection holes are threadedly connected with connection bolts.

[0013] With the above arrangement, there are at least two first connection holes and two second connection holes, so that at least two connection bolts can respectively connect the two ends of the first extraction component and the two ends of the second extraction component, further improving the connection stability of the first extraction component and the second extraction component.

[0014] As a further improvement of the above technical solution, both the first chamber and the second chamber are cylindrical chambers with the same diameter.

[0015] With the above arrangement, it is convenient to simply calculate the foam volume based on the diameter of the first chamber and the height of the foam. The first chamber and the second chamber with the same diameter and corresponding up and down can make the foam smoothly enter the first chamber as the extraction volume increases.

[0016] As a further improvement of the above technical solution, at least two insertion holes are provided on the spacer corresponding to the first connection holes. The insertion holes communicate with the outer wall surface of the spacer. An avoidance edge is formed by inwards concaving the outer wall surface of the spacer. The avoidance edge communicates with at least one of the insertion holes, so that the connection bolts are clamped with the insertion holes.

[0017] With the above settings, when the spacer is inserted, one of the connecting bolts can be relatively clamped in a plugging hole first. The spacer can rotate and be inserted between the first extraction component and the second extraction component with the axis of the connecting bolt as the rotation axis. The spacer with the avoidance edge can make the other plugging hole rotate and be clamped to the other connecting bolt. At this time, the outer wall surfaces of the two connecting bolts are respectively abutted against the hole walls of the plugging holes, so as to realize the connection between the spacer and the first extraction component.

[0018] As a further improvement of the above technical solution, a gasket is further provided between the first extraction component and the second extraction component, and the inner diameter of the gasket is the same as the diameter of the first chamber.

[0019] With the above settings, the gasket is used to reinforce the connection between the first extraction component and the second extraction component, and avoid the generation of connection gaps between the first extraction component and the second extraction component, resulting in air being drawn into the foam through the connection gaps during the extraction process, or the foam leaking from the connection gaps and being difficult to be collected in the first chamber, affecting the accuracy of the foaming ratio.

[0020] As a further improvement of the above technical solution, the gasket is provided with a mounting hole corresponding to the first connection hole, and the mounting hole extends radially and communicates with the outer wall surface of the gasket.

[0021] With the above settings, it is convenient to remove the gasket after the first extraction component and the second extraction component are separated.

[0022] As a further improvement of the above technical solution, an extraction head extends downward from one end of the second extraction component far away from the opening, and the extraction port is arranged in the extraction head.

[0023] With the above settings, when extracting the foam, the downward-extending extraction head can be inserted into the foam generated by the foaming agent solution, reducing the amount of foam adhering to the bottom wall surface and the outer wall surface of the second extraction component.

[0024] As a further improvement of the above technical solution, a scale mark is provided on the outer wall surface of the first extraction component.

[0025] With the above settings, the scale mark is convenient for obtaining information about the foam volume in the first chamber by observing and estimating, such as obtaining the height or directly obtaining the foam volume.

[0026] As a further improvement of the above technical solution, the device body is provided with a piston and a handle connected to each other. The piston slides in the first chamber and the second chamber, and the connection end of the piston and the handle passes through the first extraction component.

[0027] With the above settings, the device body drives the piston to move upward in the first chamber and the second chamber through the pull handle, so that a negative pressure suction is generated at the extraction port, realizing the suction of the foam into the second chamber and the first chamber. Description of the Drawings

[0028] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0029] Figure 1 It is a cross-sectional view of the foam extraction device provided by the embodiment of the present utility model before extracting the foam;

[0030] Figure 2 It is a cross-sectional view of the foam extraction device provided by the embodiment of the present utility model after extracting the foam;

[0031] Figure 3 It is a top view of the gasket provided by the embodiment of the present utility model;

[0032] Figure 4 It is a top view of the spacer provided by the embodiment of the present utility model.

[0033] The markings in the drawings are as follows:

[0034] 100, device body; 110, collection chamber;

[0035] 200, first extraction component; 210, first chamber; 220, first connecting plate; 221, first connecting hole;

[0036] 300, second extraction component; 310, second chamber; 320, second connecting plate; 321, second connecting hole; 330, extraction head; 331, extraction port;

[0037] 400, spacer; 410, insertion hole; 420, avoidance edge;

[0038] 500, connecting bolt;

[0039] 600, gasket; 610, mounting hole;

[0040] 710, piston; 720, handle;

[0041] 800, foam. Detailed Embodiment

[0042] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0043] In the description of the present utility model, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0044] In the description of the present utility model, if there are vocabulary descriptions such as "several", its meaning is one or more, and the meaning of multiple is two or more. Understandings such as greater than, less than, exceeding, etc. do not include the base number, and understandings such as above, below, within, etc. include the base number. If there is a description of first, second, third, etc., it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0045] It should be noted that in the drawings, the X direction points from the rear side to the front side of the foam extraction device; the Y direction points from the right side to the left side of the foam extraction device; the Z direction points from the lower side to the upper side of the foam extraction device.

[0046] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0047] Refer to Figures 1 to 4 , and several embodiments of the foam extraction device of the present utility model are given below.

[0048] As Figures 1 to 4 shown, the foam extraction device of the embodiment of the present utility model includes a device body 100, and a collection cavity 110 for collecting foam 800 is provided inside the device body 100.

[0049] It can be understood that the device body 100 includes a first extraction component 200, the first extraction component 200 is hollowly arranged and forms a first chamber 210, and the first chamber 210 communicates with the lower end of the first extraction component 200. The device body 100 includes a second extraction component 300, the second extraction component 300 is hollowly arranged and forms a second chamber 310, and the second chamber 310 communicates with the upper end of the second extraction component 300, as Figure 1 shown.

[0050] It can be understood that the first extraction component 200 is detachably connected to the second extraction component 300. When the first extraction component 200 and the second extraction component 300 are connected to each other, the first chamber 210 with an opening facing downward and the second chamber 310 with an opening facing upward are connected up and down to form the collection chamber 110. At this time, the first extraction component 200 is located above the second extraction component 300. Figure 1 shown.

[0051] It can be understood that the second extraction component 300 is provided with an extraction port 331, which is located at an end of the second extraction component 300 away from the opening, that is, the extraction port 331 is located at the lower end of the second extraction component 300, and the extraction port 331 is connected to the second chamber 310. Figure 1 When the first extraction component 200 and the second extraction component 300 are in a connected state, the extraction port 331 is inserted into the foam 800 generated by the foaming agent solution, and the foam 800 can be sucked through the extraction port 331 and collected in the collection chamber 110, so as to avoid air mixing into the foam 800 to generate pores, resulting in an increase in the height of the foam and the volume of the foam 800, which in turn causes the measured foam volume to be inaccurate and larger.

[0052] It is understandable that a spacer 400 is provided between the first extraction component 200 and the second extraction component 300. Figure 2 As shown, the spacer 400 is detachably connected to the first extraction assembly 200 .

[0053] With such a configuration, when the foam 800 is extracted, the spacer 400 can be inserted between the first chamber 210 and the second chamber 310 to separate the first chamber 210 from the second chamber 310. At this time, the spacer 400 is connected to the first extraction component 200 to preserve the foam 800 in the first chamber 210. Then, the second extraction component 300 is disassembled and separated from the first extraction component 200 to prevent the foam 800 from remaining in the extraction port 331 of the second extraction component 300 and affecting the calculation of the foam volume. After disassembling the second extraction component 300, wipe off the foam 800 on the lower end surface of the spacer 400 to prevent the excess foam 800 from affecting the quality of the foam 800 in the first chamber 210.

[0054] It is understandable that the weight of the first extraction component 200 with the foam 800 and the first extraction component 200 without the foam 800 are weighed respectively, and the weight of the foam in the first chamber 210 is obtained by the weight difference. The measured foam weight is divided by the density of the foaming agent solution to accurately obtain the volume of the foaming agent solution, thereby avoiding the situation where the foaming agent solution cannot be fully foamed 100%, resulting in a measurement error in the volume of the foaming agent solution. Then, the foam volume in the first chamber 210 is obtained by measurement, and the foam volume is divided by the volume of the foaming agent solution to obtain an accurate foaming ratio.

[0055] It can be understood that the area of the first chamber 210 can be obtained by calculating the shape and measured length of the first chamber 210. The foam height in the first chamber 210 can be obtained by measurement. The foam volume in the first chamber 210 can be obtained by multiplying the area of the first chamber 210 by the foam height.

[0056] It can be understood that the first extraction component 200 and the second extraction component 300 can be detachably connected by connection methods such as screws, snap connections, and magnetic attraction.

[0057] In some embodiments, the first extraction component 200 and the second extraction component 300 are magnetically connected. Specifically, a first magnetic member is provided at one end of the first extraction component 200 near the lower opening, and a second magnetic member is provided at one end of the second extraction component 300 near the upper opening. The first magnetic member and the second magnetic member are magnetically connected so that the first chamber 210 and the second chamber 310 are spliced to form the collection chamber 110.

[0058] In this embodiment, the first extraction component 200 and the second extraction component 300 are detachably connected by means of bolt connection, such as Figure 1 and Figure 2 as shown. The bolt connection has high structural strength, which can prevent the device body 100 from shaking, colliding, etc. during the extraction of the foam 800, resulting in the deviation of the first extraction component 200 and the second extraction component 300 and affecting the collection of the foam 800.

[0059] It can be understood that a first connection hole 221 is provided at one end of the first extraction component 200 facing the opening, that is, a first connection hole 221 is provided at the lower end of the first extraction component 200. A second connection hole 321 is provided at one end of the second extraction component 300 facing the opening, that is, a second connection hole 321 is provided at the upper end of the second extraction component 300. Both the first connection hole 221 and the second connection hole 321 are the same internal thread holes, and a connection bolt 500 is thread-matched with the second connection hole 321 and the first connection hole 221, such as Figure 1 as shown.

[0060] It can be understood that the first extraction component 200 is provided with at least two first connection holes 221. Correspondingly, the second extraction component 300 is provided with at least two second connection holes 321 to connect the second extraction component 300 at least from both ends of the first extraction component 200, ensuring that the first chamber 210 and the second chamber 310 are firmly formed into the collection chamber 110 and preventing the connection between the first extraction component 200 and the second extraction component 300 from loosening.

[0061] In this embodiment, the first extraction component 200 is provided with two first connection holes 221, and the second extraction component 300 is provided with two second connection holes 321. Specifically, the first extraction component 200 extends outward along the lower end opening with a first connection plate 220, and the two first connection holes 221 are symmetrically arranged at opposite ends of the first connection plate 220 respectively. The second extraction component 300 extends outward along the upper end opening with a second connection plate 320, and the two second connection holes 321 are symmetrically arranged at opposite ends of the second connection plate 320 respectively. As shown in Figure 1 and Figure 2 , the two first connection holes 221 and the two second connection holes 321 are vertically opposite to each other.

[0062] With such a setting, the connecting bolt 500 is sequentially threaded through the first connection hole 221 and the second connection hole 321 from above the first connection hole 221 from top to bottom. When removing the second extraction component 300, the connecting bolt 500 can be screwed out of the second connection hole 321 from bottom to top to complete the separation of the second extraction component 300 from the first extraction component 200.

[0063] It can be understood that the first chamber 210 is a cylindrical chamber, which is convenient for calculating the volume of the foam 800 in the first chamber 210 according to the diameter of the first chamber 210 and the height of the foam 800. The second chamber 310 is also a cylindrical chamber, and the second chamber 310 has the same diameter as the first chamber 210, so that the foam 800 entering the second chamber 310 from the extraction port 331 can smoothly enter the first chamber 210, which is convenient for collecting the foam 800.

[0064] Correspondingly, both the first extraction component 200 and the second extraction component 300 are cylindrical, so as to reduce the material cost and weight of the first extraction component 200 and the second extraction component 300 and make their wall thicknesses uniform.

[0065] It can be understood that the first connection plate 220 and the second connection plate 320 are circular rings, so that the first connection plate 220 extends horizontally outward along the outer side of the lower end of the first extraction component 200, the second connection plate 320 extends horizontally outward along the outer side of the upper end of the second extraction component 300, and the outer peripheral diameter of the first connection plate 220 is the same as the outer peripheral diameter of the second connection plate 320, which is convenient for the alignment and installation of the first extraction component 200 and the second extraction component 300.

[0066] It can be understood that the difference between the outer diameter and the inner diameter of the first connection plate 220 is 0.5 times the inner diameter, which can not only provide the first connection hole 221 for the connecting bolt 500 to pass through, but also prevent the first connection plate 220 from being too large.

[0067] It can be understood that the spacer 400 can be detachably connected to the first extraction component 200 by connection methods such as screws, clamping, magnetism, etc.

[0068] In this embodiment, the spacer 400 is snap-connected to the first extraction component 200. Specifically, the spacer 400 is provided with a plurality of insertion holes 410. As Figure 4 shown, when the spacer 400 is inserted between the first extraction component 200 and the second extraction component 300, the connecting bolts 500 can be inserted relatively and snap-connected into the insertion holes 410. The outer wall surfaces of the connecting bolts 500 at fixed positions are abutted against the wall surfaces of the plurality of insertion holes 410, so as to realize the snap-fixing of the spacer 400 and the first extraction component 200.

[0069] It can be understood that the insertion holes 410 communicate with the upper end surface and the lower end surface of the spacer 400 up and down, so as to allow the connecting bolts 500 extending up and down to be inserted relatively into the insertion holes 410. The plurality of insertion holes 410 respectively correspond to the plurality of first connection holes 221 one by one up and down. In this embodiment, there are two insertion holes 410, which are respectively opposite to the two first connection holes 221 up and down.

[0070] It can be understood that the insertion holes 410 communicate with the outer wall surface of the spacer 400, so that when the spacer 400 is inserted between the first extraction component 200 and the second extraction component 300, the connecting bolts 500 can be inserted relatively into the insertion holes 410 along the communication path between the insertion holes 410 and the outer wall surface of the spacer 400.

[0071] With such a setting, when a connecting bolt 500 is inserted relatively into an insertion hole 410, the spacer 400 rotates and is inserted into the collection cavity 110 with the up-and-down axis of the connecting bolt 500 as the rotation axis, so as to accurately separate the foam 800 in the first chamber 210 and the second chamber 310.

[0072] It can be understood that a relief edge 420 is formed by concave-convex of the outer wall surface of the spacer 400, and the relief edge 420 communicates with another insertion hole 410. As Figure 4 shown, to avoid another connecting bolt 500, ensuring that both connecting bolts 500 can be snap-connected to the two insertion holes 410 relatively, and avoiding the situation that when one of the insertion holes 410 is relatively inserted with a connecting bolt 500, the outer wall surface of the spacer 400 will abut against another connecting bolt 500 during the rotation and insertion process of the spacer 400, resulting in the inability of the insertion hole 410 at the other end of the spacer 400 to be snap-connected to another connecting bolt 500 due to the symmetric setting of the two first connection holes 221.

[0073] It can be understood that the device body 100 is further provided with a gasket 600. As Figures 1 to 3As shown. The gasket 600 is disposed between the first extraction assembly 200 and the second extraction assembly 300, that is, between the first connecting plate 220 and the second connecting plate 320. When the connecting bolt 500 tightens the first connecting plate 220 and the second connecting plate 320, the gasket 600 is squeezed and can be slightly deformed to increase the connection stability of the first connecting plate 220 and the second connecting plate 320, preventing air from being sucked into the collection chamber 110 through the gap between the first connecting plate 220 and the second connecting plate 320 when extracting the foam 800, generating pores and affecting the measurement result of the foam volume; or causing the foam 800 to leak from the gap between the first connecting plate 220 and the second connecting plate 320.

[0074] It can be understood that the gasket 600 is annular. As Figure 4 shown, the inner diameter of the gasket 600 is the same as the diameter of the first chamber 210. Since the diameter of the first chamber 210 is the same as the diameter of the second chamber 310, the wall surface of the collection chamber 110 is smoothly arranged in the up and down direction, facilitating the smoothly stacked extraction of the foam 800 from the bottom up in the collection chamber 110.

[0075] It can be understood that the spacer 400 is inserted between the first connecting plate 220 and the gasket 600, so that after the second extraction assembly 300 is disassembled and separated from the first extraction assembly 200, the gasket 600 can still prevent the foam 800 from leaking between the first extraction assembly 200 and the spacer 400.

[0076] However, since the spacer 400 only horizontally abuts against the outer wall surface of the connecting bolt 500 and the hole wall surface of the insertion hole 410, when the connecting bolt 500 is screwed out of the second connecting hole 321, the gasket 600 is no longer squeezed and returns to its original state, generating a resilience in the up and down direction, resulting in the loosening of the connection between the spacer 400 and the first extraction assembly 200 and affecting the measurement accuracy of the foam volume.

[0077] In this embodiment, the spacer 400 is inserted between the gasket 600 and the second connecting plate 320. As Figure 2 shown. When the connecting bolt 500 is screwed out of the second connecting hole 321, the second extraction assembly 300 and the gasket 600 can be disassembled, avoiding the loosening of the connection between the spacer 400 and the first extraction assembly 200.

[0078] Correspondingly, the gasket 600 is provided with mounting holes 610 through which the connecting bolt 500 can pass. As Figure 3 shown, that is, there are two mounting holes 610, which respectively correspond to the two first connecting holes 221 up and down.

[0079] In some embodiments, the mounting hole 610 is a round hole corresponding to the size of the first connection hole 221. The connecting bolt 500 can be accurately passed through the first connection hole 221, the mounting hole 610, and the second connection hole 321 to realize the connection of the first extraction component 200, the gasket 600, and the second extraction component 300.

[0080] In this embodiment, the mounting hole 610 extends radially and communicates with the outer wall surface of the gasket 600, that is, the two mounting holes 610 extend away from each other with the upper and lower axes of the gasket 600 as the center. After the second extraction component 300 is separated from the first extraction component 200, the gasket 600 at both ends of the mounting hole 610 can be pulled to easily disengage the connecting bolt 500 from the mounting hole 610, facilitating the removal of the gasket 600 from the bottom of the first connecting plate 220.

[0081] It can be understood that a extraction head 330 is provided at one end of the second extraction component 300 away from the upper end opening. As shown in Figure 1 and Figure 2 , the extraction head 330 extends downward, and the extraction port 331 communicating with the second chamber 310 is provided in the extraction head 330.

[0082] With such a setting, when extracting the foam 800 generated by the foaming agent solution, the extraction head 330 can be inserted into the foam 800, and then the foam 800 can be extracted, so that only the extraction head 330 of the device body 100 contacts the foam 800, avoiding the situation where the bottom wall surface and the outer wall surface of the second extraction component 300 both contact the foam 800 when the extraction port 331 is provided at the bottom of the second extraction component 300, which affects the collection of the foam 800.

[0083] It can be understood that a scale mark is provided on the outer wall surface of the first extraction component 200 for measuring the volume of the foam in the first chamber 210. Specifically, since the lower end surface of the first connecting plate 220 is the opening surface of the first chamber 210, the scale mark starts from the lower end surface of the first connecting plate 220 and extends vertically upward to the inner top surface of the first chamber 210.

[0084] In some embodiments, the scale mark can be a volume mark. Since the inner diameter of the first chamber 210 is fixed, each position has a corresponding volume, and the foam volume can be directly obtained by observing the top position of the foam 800.

[0085] Since the top height of the foam 800 does not necessarily align with the scale line of the volume mark, when the top height of the foam 800 is between two volume marks, it is difficult to estimate the corresponding foam volume based on the top position of the foam 800.

[0086] In some other embodiments, the scale markings are height markings. The height of the foam in the first chamber 210 can be estimated from the top position of the foam 800, and then the foam height is multiplied by the area of the circular cross-section of the first chamber 210 to obtain the accurate foam volume.

[0087] It can be understood that a negative pressure extraction device, such as a cylinder, a suction pump, etc., can be connected to the top of the collection chamber 110 of the device body 100, so as to realize that the foam 800 is sucked into the collection chamber 110. However, if the extraction speed of the electrical equipment is too fast, it is easy to quickly cause the foam 800 to overflow in the first chamber 210, making it difficult to accurately measure the foaming ratio.

[0088] In this embodiment, the device body 100 is provided with a piston 710 and a handle 720 that are connected to each other. The piston 710 can slide in the collection chamber 110, and the connecting end of the piston 710 and the handle 720 passes through the first extraction assembly 200, such as Figure 1 and Figure 2 as shown. Pull the handle 720 upward from bottom to top so that the piston 710 slides upward to generate a negative pressure suction at the extraction port 331, thereby sucking the foam 800 into the collection chamber 110.

[0089] Working principle: Weigh the total weight of the first extraction assembly 200, the spacer 400, the piston 710, the handle 720 and the two connecting bolts 500 in advance. Place the gasket 600 between the first connecting plate 220 and the second connecting plate 320, and screw the connecting bolts 500 into the first connecting hole 221, the mounting hole 610 and the second connecting hole 321 from top to bottom in sequence. Push the handle 720 downward to make the piston 710 located at the bottom of the collection chamber 110.

[0090] Insert the extraction head 330 into the foam 800 generated by the foaming agent solution, pull the handle 720 upward relative to the first extraction assembly 200, and suck the foam 800 under negative pressure. Insert the spacer 400 between the first connecting plate 220 and the gasket 600 so that the spacer 400 is engaged with the two connecting bolts 500, then screw out the connecting bolts 500 from the second connecting hole 321, remove the second extraction assembly 300 and the gasket 600, estimate the scale markings to obtain the foam volume, wipe the foam 800 on the lower end surface of the spacer 400 and then weigh it, subtract the total weight weighed in advance to obtain the weight of the foaming agent solution, obtain the volume of the foaming agent solution according to the density of the foaming agent solution, and then divide the foam volume by the volume of the foaming agent solution to obtain the accurate foaming ratio.

[0091] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Those skilled in the art can also make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A foam extraction device, characterized in that, It includes a device body, and the device body includes a first extraction component and a second extraction component that are detachably connected. The first extraction component is hollow to form a first chamber with an opening facing downward, and the second extraction component is hollow to form a second chamber with an opening facing upward. The first chamber and the second chamber communicate with each other vertically. One end of the second extraction component far from the opening is provided with an extraction port. A partition for partitioning is inserted between the first extraction component and the second extraction component, and the partition is detachably connected to the first extraction component.

2. The foam extraction device according to claim 1, characterized in that, The first extraction component and the second extraction component are bolted together.

3. The foam extraction device according to claim 2, wherein, At least two first connection holes are provided at one end of the first extraction component facing the opening, and at least two second connection holes are provided at one end of the second extraction component facing the opening. The first connection holes and the second connection holes are vertically opposite and are both internally threaded holes, and the first connection holes and the second connection holes are threadedly connected with connection bolts.

4. The foam extraction device according to claim 3, characterized in that Both the first chamber and the second chamber are cylindrical chambers with the same diameter.

5. The foam extraction device according to claim 4, characterized in that, The partition is provided with at least two insertion holes corresponding to the first connection holes. The insertion holes communicate with the outer wall surface of the partition. A relief edge is concavely formed on the outer wall surface of the partition, and the relief edge communicates with at least one of the insertion holes so that the connection bolt is clamped with the insertion hole.

6. The foam extraction device according to claim 4, wherein, A gasket is further provided between the first extraction component and the second extraction component, and the inner diameter of the gasket is the same as the diameter of the first chamber.

7. The foam extraction device according to claim 6, wherein The gasket is provided with mounting holes corresponding to the first connection holes, and the mounting holes extend radially and communicate with the outer wall surface of the gasket.

8. The foam extraction device according to claim 1, characterized in that, One end of the second extraction component far from the opening extends downward to form an extraction head, and the extraction port is provided in the extraction head.

9. The foam extraction device according to claim 1, characterized in that A scale mark is provided on the outer wall surface of the first extraction component.

10. The foam extraction device according to claim 3, characterized in that, The device body is provided with a piston and a handle that are connected to each other. The piston slides in the first chamber and the second chamber, and the connection end of the piston and the handle passes through the first extraction component.

Images