Tea oil detecting and sampling device
By using the linkage design of the elastic arm and the push rod of the tea oil testing and sampling device, the oxidized oil film at the sampling point is adsorbed, which solves the problem of oxidized oil film mixing in tea oil sampling and achieves the accuracy of tea oil testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-31
AI Technical Summary
During the tea oil sampling process, the oxidized oil film on the surface of the oil layer was taken away along with the sampling bucket, resulting in abnormal test indicators and affecting the judgment of tea oil quality.
A tea oil testing and sampling device is designed. It utilizes the linkage between the elastic arm and the extrusion rod to adsorb the oxidized oil film at the sampling point through the oil absorption film. When the extrusion rod retracts, it forms a sealed space to absorb only normal tea oil and avoid the mixing of oxidized oil film.
This effectively avoids the mixing of oxidized oil film and tea oil, ensuring the accuracy of test results and preventing inaccurate testing due to oxidized oil film.
Smart Images
Figure CN224066410U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edible oil sampling technology, and in particular to a tea oil detection and sampling device. Background Technology
[0002] As a traditional edible oil, the quality and safety of camellia oil are directly related to consumers' health. Through professional sampling and testing processes, the authenticity and safety of camellia oil can be ensured, providing consumers with a reliable product.
[0003] Currently, tea oil sampling typically involves directly inserting the sampling bucket into the storage tank. However, during the sampling process, the oxide film formed on the surface of the oil layer is also removed by the sampling bucket. Because the chemical properties of the oxide film on the surface of the oil layer differ from those of the tea oil inside, it can lead to abnormal test results and affect the assessment of the tea oil's quality. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a tea oil testing and sampling device, which aims to prevent the removal of the oxidized oil film during sampling.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] This utility model provides a tea oil testing and sampling device, including an inner cylinder, an elastic column, a first elastic element, a second elastic element, a push rod, an outer cylinder, a piston, an oil-absorbing film, and a locking mechanism. The inner cylinder has a first accommodating cavity and an oil inlet communicating with the first accommodating cavity. The elastic column is engaged in the first accommodating cavity and extends to the oil inlet side, forking to form a pair of relatively spaced elastic arms. The elastic column penetrates the second accommodating cavity. The first elastic element is disposed between the inner cylinder and the elastic column to generate a radial preload force, forcing the outer wall of the elastic column away from the inner wall of the first accommodating cavity. The second elastic element is disposed between the two elastic arms to generate a radial preload force, forcing the two elastic arms to maintain a closed tendency. The extrusion rod is slidably clamped in the second accommodating cavity and partially extends into the gap between the two elastic arms. The outer cylinder is sleeved on the inner cylinder and has a third accommodating cavity communicating with the first accommodating cavity and an opening communicating with the third accommodating cavity. The piston is slidably disposed in the third accommodating cavity. The middle part of the oil-absorbing film is connected to the extrusion rod. The locking mechanism is used to lock the oil-absorbing film to cover the oil inlet. The locking mechanism is linked to the extrusion rod. When the extrusion rod moves away from the two elastic arms, the locking mechanism switches the oil-absorbing film from the locked state to the unlocked state. At the same time, the second elastic element drives the two elastic arms to move closer to each other until they close together. The extrusion rod folds the oil-absorbing film into the closed space surrounded by the two elastic arms.
[0007] In addition, the tea oil detection and sampling device according to the present invention may also have the following additional technical features:
[0008] Furthermore, the tea oil detection and sampling device also includes a cover plate, which is detachably mounted on the inner cylinder to cover the oil inlet. The periphery of the oil-absorbing film is clamped between the cover plate and the inner cylinder by the locking mechanism. The center of the cover plate is hollowed out, and the size of the hollowed-out area is the same as the size of the oil inlet.
[0009] Furthermore, the inner cylinder has a sliding cavity inside its side wall, and sliding grooves are spaced apart along the circumferential direction of the inner wall of the inner cylinder. The sliding grooves communicate with the sliding cavity. The elastic column has a clamping groove communicating with the second accommodating cavity. The extending direction of the clamping groove is parallel to the extending direction of the sliding groove. The locking mechanism includes a pressure plate, a third elastic element, and a connecting plate. The pressure plate is slidably disposed in the sliding cavity. The third elastic element is disposed between the pressure plate and the top wall of the sliding cavity to generate an axial preload force to force the pressure plate to move toward the oil absorption film side. One end of the connecting plate is connected to the pressure plate, and the other end of the connecting plate passes through the sliding groove and the clamping groove in sequence until it is connected to the push rod.
[0010] Furthermore, the cross-section of the portion of the connecting plate clamped by the clamping groove is spindle-shaped.
[0011] Furthermore, the inner wall of the inner cylinder is provided with an installation groove, and the first elastic element includes a spring, one end of which is fixed to the bottom wall of the installation groove, and the other end of which is fixed to the outer wall of the elastic column.
[0012] Furthermore, the mounting groove is located above the position where the first accommodating cavity and the third accommodating cavity communicate.
[0013] Furthermore, the second elastic element is an elastic ring, and complementary arc-shaped grooves are symmetrically provided on the outer walls of the two elastic arms. The two arc-shaped grooves are aligned to form an annular groove, and the elastic ring is engaged in the annular groove.
[0014] Furthermore, the cross-section of the space between the two elastic arms is an inverted cone, and the end of the push rod near the elastic arm is provided with a conical push head.
[0015] Furthermore, the inner cylinder is provided with a through-hole at the end away from the oil inlet, and the size of the through-hole is larger than the size of the push rod.
[0016] Furthermore, a retaining sleeve is provided between the push rod and the inner cylinder.
[0017] The beneficial effects of this utility model include at least the following: Through the linkage design of the elastic arm and the push rod, the oil-absorbing film at the sampling point is absorbed by the oil-absorbing film during the sampling process. When the push rod retracts, the elastic arm closes to form a sealed space. After the oil-absorbing film folds and seals the space, it only absorbs the normal tea oil at the sampling point, effectively avoiding the oxide film on the surface of the oil layer and solving the problem of inaccurate detection caused by the mixing of oxide oil film in traditional sampling. The use of the first elastic element and the second elastic element creates a radial pre-tightening force between the elastic column and the inner cylinder and between the elastic arms. Under the action of the push rod, the elastic arm opens and closes, and the elastic column and the inner cylinder adhere and separate, thereby ensuring the orderly operation of the oil-absorbing paper absorbing the oxide oil film and sampling the normal tea oil, avoiding the mixing of oxide oil film during sampling. In addition, the inner cylinder is designed with a detachable cover plate to facilitate the replacement of the oil-absorbing film. Attached Figure Description
[0018] Figure 1 This is a first-view structural schematic diagram of the tea oil detection and sampling device in one embodiment of the present invention.
[0019] Figure 2 This is a structural schematic diagram of the tea oil detection and sampling device in one embodiment of the present invention from a second perspective.
[0020] Figure 3 This is a cross-sectional view of the tea oil detection and sampling device in one embodiment of the present invention when no sample is being taken;
[0021] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;
[0022] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;
[0023] Figure 6 This is a cross-sectional view of the tea oil detection and sampling device in one embodiment of the present invention during sampling.
[0024] Figure 7 This is a schematic diagram of the elastic arm in one embodiment of the present invention;
[0025] Figure 8 This is a partial structural diagram of the connecting plate in one embodiment of the present utility model;
[0026] Explanation of key component symbols:
[0027] Inner cylinder 100, first accommodating cavity 110, oil inlet 120, sliding cavity 130, sliding groove 140, mounting groove 150, through port 160, elastic column 200, elastic arm 210, arc groove 211, second accommodating cavity 220, clamping groove 230, first elastic element 300, second elastic element 400, extrusion rod 500, push head 510, ferrule 520, outer cylinder 600, third accommodating cavity 610, opening 620, piston 700, push handle 710, oil suction film 800, locking mechanism 900, pressure plate 910, third elastic element 920, connecting plate 930, cover plate 1000;
[0028] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation
[0029] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.
[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0032] Please refer to Figures 1 to 8 This utility model provides a tea oil testing and sampling device, which includes an inner cylinder 100, an elastic column 200, a first elastic element 300, a second elastic element 400, a push rod 500, an outer cylinder 600, a piston 700, an oil absorption film 800, and a locking mechanism 900.
[0033] Specifically, the inner cylinder 100 has a first receiving cavity 110 inside, and an oil inlet 120 communicating with the first receiving cavity 110 is provided at the bottom of the inner cylinder 100. An elastic column 200 is disposed within the first receiving cavity 110, with its upper end locked within the first receiving cavity 110 to prevent it from falling out. The lower end of the elastic column 200 extends to the oil inlet 120 side and forks to form a pair of relatively spaced elastic arms 210, i.e., there is a gap between the bottoms of the two elastic arms 210. A second receiving cavity 220 is provided in the middle of the elastic column 200, penetrating the body of the elastic column 200. A first elastic element 300 is disposed between the inner cylinder 100 and... Between the elastic pillars 200, a radial preload is generated, which forces the outer wall of the elastic pillar 200 to not adhere to the inner wall of the first accommodating cavity 110. A second elastic element 400 is disposed between the two elastic arms 210 to generate a radial preload, which forces the two elastic arms 210 to close together, closing the gap between the bottoms of the two elastic arms 210 and reducing the area enclosed by the two elastic arms 210. A push rod 500 is slidably disposed within the second accommodating cavity 220 to move up and down within the second accommodating cavity 220. Simultaneously, the push rod 500 presses outward against the sidewall of the elastic pillar 200, and the lower end of the push rod 500 extends into the gap between the two elastic arms 210. It is understood that the space containing the gap between the two elastic arms 210 communicates with the second accommodating cavity 220, allowing the lower end of the push rod 500 to extend into the gap between the two elastic arms 210.
[0034] An outer cylinder 600 is fitted onto an inner cylinder 100. The outer cylinder 600 has a third accommodating cavity 610 communicating with the first accommodating cavity 110, and an opening 620 communicating with the third accommodating cavity 610. A piston 700 is slidably disposed within the third accommodating cavity 610 to move up and down within the third accommodating cavity 610. The opening 620 is used to communicate with the outside atmosphere to balance the internal and external air pressure of the third accommodating cavity 610, preventing difficulty in oil intake or piston 700 jamming. The middle part of the oil-absorbing membrane 800 is connected to the extrusion rod 500. A locking mechanism 900 is used to lock the oil-absorbing membrane 800 to cover the oil inlet 120. The locking mechanism 900 is linked to the extrusion rod 500. Optionally, the oil-absorbing membrane 800 can be a food-grade membrane such as a food-grade polypropylene microporous membrane, an activated carbon fiber composite membrane, or a hydrophobic and oleophilic PTFE membrane.
[0035] In this embodiment, when the push rod 500 moves upward within the second accommodating cavity 220 and away from the two elastic arms 210, the locking mechanism 900 switches the oil-absorbing film 800 from a locked state to an unlocked state. Simultaneously, the second elastic element 400 drives the two elastic arms 210 closer together until they close together. The push rod 500 moves upward, folding the oil-absorbing film 800 from its center until the folded oil-absorbing film 800 is pulled into the closed space surrounded by the two elastic arms 210. At this point, because the elastic arms 210 are closed together, and under the action of the first elastic element 300 and the second elastic element 400, the elastic rod... The lower outer wall of 200 and the outer wall of elastic arm 210 do not adhere to the inner wall of the first accommodating cavity 110, thereby connecting the first accommodating cavity 110 and the third accommodating cavity 610. When piston 700 moves upward in the third accommodating cavity 610, a negative pressure is generated between piston 700 and the bottom wall of the third accommodating cavity 610. This negative pressure can draw tea oil from the storage tank into the third accommodating cavity 610. Since the oxidized oil film at the extraction point is adsorbed by the oil-absorbing film 800, and the oil-absorbing film 800 is isolated in the closed space of the two elastic arms 210, the oxidized oil film is prevented from contacting the extracted tea oil, thus preventing the oxidized oil film from being removed during sampling.
[0036] In some alternative embodiments, such as Figures 1 to 4 , Figure 6 As shown, the tea oil testing and sampling device also includes a cover plate 1000, which is detachably mounted on the inner cylinder 100 to cover the oil inlet 120 and facilitate the replacement of the oil-absorbing membrane 800. Optionally, the cover plate 1000 can be threadedly connected to the inner cylinder 100. The periphery of the oil-absorbing membrane 800 is clamped between the cover plate 1000 and the inner cylinder 100 by a locking mechanism 900. In order to allow tea oil to enter the first receiving cavity 110, the middle part of the cover plate 1000 is hollowed out, and the size of the hollowed-out area is the same as that of the oil inlet 120, but the hollowed-out area is smaller than the size of the oil-absorbing membrane 800, ensuring that the periphery of the oil-absorbing membrane 800 can be clamped between the non-hollowed-out part of the periphery of the cover plate 1000 and the inner cylinder 100.
[0037] In some alternative embodiments, such as Figure 3As shown, the inner cylinder 100 has a sliding cavity 130 inside its side wall. The extension direction of the sliding cavity 130 is parallel to the axial direction of the inner cylinder 100. Sliding grooves 140 are provided at intervals along the circumferential direction of the inner wall of the inner cylinder 100. The sliding grooves 140 are connected to the sliding cavity 130. The extension direction of the sliding grooves 140 is parallel to the axial direction of the inner cylinder 100. The elastic column 200 has a clamping groove 230 that is connected to the second accommodating cavity 220. The extension direction of the clamping groove 230 is parallel to the extension direction of the sliding grooves 140. The locking mechanism 900 includes a pressure plate 910, a third elastic element 920, and a connecting plate 930. The pressure plate 910 is slidably disposed within the slide cavity 130 to move up and down within the slide cavity 130. The third elastic element 920 is disposed between the top of the pressure plate 910 and the top wall of the slide cavity 130. The third elastic element 920 generates an axial preload force, which forces the pressure plate 910 to move towards the oil-absorbing film 800 side, thereby clamping the periphery of the oil-absorbing film 800 between the non-perforated portion of the cover plate 1000 and the inner cylinder 100 when the pressure plate 910 is not subjected to external force. The left end of the connecting plate 930 is connected to the pressure plate 910, and the right end of the connecting plate 930 passes through the slide groove 140 and the clamping groove 230 in sequence, and is finally connected to the push rod 500. When the push rod 500 moves up and down within the second receiving cavity 220, it drives the pressure plate 910 to move up and down within the sliding cavity 130 via the connecting plate 930. Specifically, when the pressure plate 910 moves upward within the sliding cavity 130 without contacting the oil-absorbing film 800, the pressure plate 910 does not press down on the periphery of the oil-absorbing film 800, and the oil-absorbing film 800 is in an unlocked state. When the pressure plate 910 moves downward within the sliding cavity 130 and contacts the oil-absorbing film 800, the pressure plate 910 presses down on the periphery of the oil-absorbing film 800, and the oil-absorbing film 800 is in a locked state. Optionally, the third elastic element 920 can be an elastic device such as a spring or an elastic sheet.
[0038] To prevent tea oil from flowing into the second receiving cavity 220 from the gap between the connecting plate 930 and the clamping groove 230 during sampling, in some optional embodiments, such as Figure 8 As shown, the cross-section of the part of the connecting plate 930 that is clamped by the clamping groove 230 is spindle-shaped, so that when the connecting plate 930 moves up and down, the corresponding parts will be tightly fitted together by the clamping groove 230.
[0039] In some alternative embodiments, such as Figure 3 , Figure 5 , Figure 6As shown, the inner wall of the inner cylinder 100 is provided with a mounting groove 150. The first elastic element 300 includes a spring, one end of which is fixed to the bottom wall of the mounting groove 150, and the other end of which is fixed to the outer wall of the elastic column 200. When the bottom of the push rod 500 is located in the gap between the two elastic arms 210, the push rod 500 pushes the elastic arms 210 and the elastic column 200 outward, so that the outer walls of the elastic arms 210 and the elastic column 200 are tightly attached to the inner wall of the inner cylinder 100. At this time, the tea oil cannot enter the third accommodating cavity 610 from the oil inlet 120 and the first accommodating cavity 110, and the spring is compressed, generating a force that prevents the outer wall of the elastic column 200 from adhering to the inner wall of the inner cylinder 100.
[0040] To avoid interference between the mounting slot 150 and the sliding cavity 130, in some optional embodiments, such as Figure 6 As shown, the mounting slot 150 is located above the position where the first accommodating cavity 110 and the third accommodating cavity 610 communicate.
[0041] In some alternative embodiments, such as Figure 3 , Figure 6 , Figure 7 As shown, the second elastic element 400 is an elastic ring. The outer walls of the two elastic arms 210 are symmetrically provided with complementary arc-shaped grooves 211. The two arc-shaped grooves 211 are aligned to form an annular groove, in which the elastic ring is engaged. When the elastic ring is engaged in the annular groove, it generates a radial preload, which forces the two elastic arms 210 to close together. Specifically, as the bottom of the push rod 500 gradually moves upward, the elastic arms 210 are no longer compressed by the push rod 500. The gap between the bottoms of the two elastic arms 210 gradually closes under the preload generated by the elastic ring. Simultaneously, the area enclosed by the two elastic arms 210 gradually shrinks, causing the outer wall of the elastic arm 210 to gradually separate from the inner wall of the inner cylinder 100, and causing part of the outer wall of the elastic column 200 to gradually separate from the inner wall of the inner cylinder 100, until the tea oil can enter the third accommodating cavity 610 from the oil inlet 120 and the first accommodating cavity 110.
[0042] As the extrusion rod 500 moves downward, to facilitate the extrusion rod 500 pressing the elastic arm 210 outward, in some optional embodiments, such as... Figure 3 As shown, the cross-section of the space between the two elastic arms 210 is an inverted cone shape, and the push rod 500 is provided with a conical push head 510 at one end near the elastic arm 210.
[0043] To facilitate the application of force from the top of the push rod 500, in some alternative embodiments, such as Figure 3 , Figure 6As shown, the inner cylinder 100 is also provided with a through-hole 160 at the end away from the oil inlet 120. The size of the through-hole 160 is larger than the size of the extrusion rod 500, so that the top of the extrusion rod 500 can extend from the through-hole 160 to the outside of the inner cylinder 100, which makes it convenient for the sampling personnel to pull the extrusion rod 500 upward and push the extrusion rod 500 downward.
[0044] In some alternative embodiments, such as Figure 6 As shown, a retaining sleeve 520 is provided between the extrusion rod 500 and the inner cylinder 100. When the pressure plate 910 moves upward to the preset position in the sliding cavity 130, the pressure plate 910 tends to move downward due to the downward elastic force generated by the third elastic element 920. At this time, the retaining sleeve 520 is locked between the top of the extrusion rod 500 and the upper surface of the inner cylinder 100. When the sampling personnel release the extrusion rod 500, the extrusion rod 500 will not move downward under the action of the elastic force generated by the third elastic element 920, thereby ensuring that the tea oil can enter the third accommodating cavity 610 from the oil inlet 120 and the first accommodating cavity 110. At the same time, it can also ensure that the two elastic arms 210 are closed together to prevent the tea oil from contacting the oil-absorbing film 800 with the oxidized oil film during sampling.
[0045] To facilitate the pulling and pushing of the piston 700, in some optional embodiments, such as Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown, the piston 700 is provided with a push handle 710, and the size of the push handle 710 is smaller than the size of the opening 620, so that the push handle 710 can pass through the opening 620.
[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0047] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of protection of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the appended claims.
Claims
1. A tea oil detection sampling device, characterized in that, The tea oil detection sampling device comprises: an inner cylinder provided with a first accommodating cavity and an oil inlet communicated with the first accommodating cavity; an elastic column clamped in the first accommodating cavity, the elastic column extending to the side of the oil inlet to bifurcate to form a pair of oppositely spaced elastic arms, the elastic column being provided with a second accommodating cavity penetratingly arranged; a first elastic member arranged between the inner cylinder and the elastic column for generating a radial pre-tightening force to force the outer wall of the elastic column to deviate from the close contact trend with the inner wall of the first accommodating cavity; a second elastic member arranged between the two elastic arms for generating a radial pre-tightening force to force the two elastic arms to maintain a close contact trend; a pushing rod slidingly clamped in the second accommodating cavity and partially extending into the gap between the two elastic arms; an outer cylinder sleeved on the inner cylinder and provided with a third accommodating cavity communicated with the first accommodating cavity and an opening communicated with the third accommodating cavity; a piston slidingly arranged in the third accommodating cavity; an oil absorption film with a middle part connected with the pushing rod; a locking mechanism for locking the oil absorption film to cover the oil inlet, the locking mechanism being in linkage connection with the pushing rod, when the pushing rod deviates from the two elastic arms, the locking mechanism switches the oil absorption film from the locked state to the unlocked state, and at the same time, the second elastic member drives the two elastic arms to approach each other until they are closed together, and the pushing rod folds the oil absorption film into the closed space surrounded by the two elastic arms.
2. The tea oil detection sampling device according to claim 1, characterized in that, The tea oil detection sampling device further comprises a cover plate detachably arranged on the inner cylinder to cover the oil inlet, the periphery of the oil absorption film being clamped between the cover plate and the inner cylinder by the locking mechanism, the middle part of the cover plate being hollowly arranged and the hollow area being consistent in size with the size of the oil inlet.
3. The tea oil detection sampling device according to claim 2, characterized in that, The inner wall of the side wall of the inner cylinder is provided with a sliding cavity and a sliding groove spaced apart along the circumferential direction of the inner wall of the inner cylinder, the sliding groove being communicated with the sliding cavity, the elastic column being provided with a clamping groove communicated with the second accommodating cavity, the extension direction of the clamping groove being parallel to the extension direction of the sliding groove, and the locking mechanism comprising: a pressing plate slidingly arranged in the sliding cavity; a third elastic member arranged between the pressing plate and the top wall of the sliding cavity for generating an axial pre-tightening force to force the pressing plate to move towards the oil absorption film; a connecting plate, one end of the connecting plate being connected with the pressing plate, the other end of the connecting plate sequentially passing through the sliding groove and the clamping groove and then being connected with the pushing rod.
4. The tea oil detection sampling device according to claim 3, characterized in that, The part of the connecting plate clamped by the clamping groove is in a shuttle-shaped cross section.
5. The tea tree oil detection sampling device according to claim 1, wherein, The inner wall of the inner cylinder is provided with a mounting groove, the first elastic member comprising a spring, one end of the spring being fixedly connected with the bottom wall of the mounting groove, and the other end of the spring being fixedly connected with the outer wall of the elastic column.
6. The tea tree oil detection sampling device according to claim 5, wherein, The mounting groove is located above the position where the first accommodating cavity and the third accommodating cavity are communicated.
7. The tea tree oil detection sampling device according to claim 1, wherein The second elastic member is an elastic ring, the outer walls of the two elastic arms being symmetrically provided with complementary arc-shaped grooves, the two arc-shaped grooves being oppositely arranged to form an annular groove, and the elastic ring being clamped in the annular groove.
8. The tea tree oil detection sampling device according to claim 1, wherein, The space section between the two elastic arms is inverted conical, and the extrusion rod is provided with a conical pushing head at one end close to the elastic arms.
9. The tea tree oil detection sampling device according to claim 1, wherein, The inner cylinder is further provided with a through hole at one end away from the oil inlet, and the size of the through hole is larger than that of the extrusion rod.
10. The tea tree oil detection sampling device according to claim 9, wherein, A clamping sleeve is arranged between the extrusion rod and the inner cylinder.