Slide lens oil recovery device

Abstract

The invention discloses a slide lens oil recovery device which comprises an oil draining assembly, the oil draining assembly comprises an inwards-concave oil draining disc, a first clamping opening is formed in the top of the oil draining disc, an oil draining hole is formed in the middle of the oil draining disc, a supporting piece is arranged in the oil draining hole, and a second clamping opening which is collinearly distributed with the first clamping opening is formed in the top of the supporting piece; the middle of the supporting piece is fixedly connected with a limiting piece in a clearance mode. The fixing assembly is arranged outside the oil draining assembly, the fixing assembly comprises a fixing disc, the bottom of the fixing disc is open, a bearing structure used for supporting the oil draining assembly is arranged in the fixing disc, and the bearing structure comprises a plurality of bearing rods making contact with the outer wall of the oil draining assembly; the lens oil recovery assembly comprises a collection bottle, and the collection bottle is detachably arranged below the fixing assembly. The contact area of the slide and the lens oil recovery device can be reduced, and the recovery device is convenient to clean.

Description

Technical Field

[0001] The present application relates to the technical field of laboratory equipment, and in particular to a slide oil recovery device. Background Art

[0002] Glass slides are thin sheets of material used to make optical devices and observe microscopes. They have good optical transparency and flatness. In biology, glass slides are often used to make slides and cover slips to observe biological tissues or cell samples under a microscope.

[0003] When using a microscope, immersion oil is often needed to improve the resolution and clarity of the image. After use, immersion oil remains on the glass slide and needs to be cleaned before storage. Traditional cleaning relies on wiping or placing the glass slide on oil-absorbing paper for absorption. However, wiping wastes immersion oil and easily damages the surface of the glass slide. As for the absorption method using oil-absorbing paper, due to the slow flow of immersion oil and the limited absorption capacity of oil-absorbing paper, it may not be possible to clean all the immersion oil at once, and the immersion oil absorbed by the oil-absorbing paper cannot be recycled. The prior art discloses a slide microscope oil collection device (application number 202220813046.5), which uses a clamping plate to clamp the slide and drains the immersion oil by vibration. However, since the immersion oil is viscous, after the slide contacts the elastic pad of the clamping plate, the flow rate of the immersion oil at this position slows down, and the slide may move by vibration, causing reciprocating contact with the elastic pad, leaving a large area of ​​oil marks on the surface of the slide. Secondly, the collection device is a large rectangular structure, and the use of vibration to drain the oil will cause the immersion oil to splash or penetrate into various gaps in the immersion oil collection device. Because the immersion oil collection device uses a large number of clamping plates, there are many dead corners, which is relatively troublesome to clean. Summary of the invention

[0004] The technical problem to be solved by the present application is to provide a glass slide oil recovery device, which can reduce the contact area between the glass slide and the oil recovery device and facilitate cleaning of the recovery device.

[0005] In order to solve the above technical problems, this application adopts the following technical solutions:

[0006] A slide lens oil recovery device, comprising:

[0007] The oil drain assembly comprises a concave oil drain pan, a first bayonet is provided on the top of the oil drain pan, an oil drain hole is provided in the middle, a support is provided in the oil drain hole, a second bayonet is provided on the top of the support and is collinear with the first bayonet; a limiting member is fixedly connected to the middle of the support with a gap;

[0008] A fixed component is arranged outside the oil drain component, the fixed component comprises a fixed plate, the bottom of the fixed plate is open, a supporting structure for supporting the oil drain component is arranged inside the fixed plate, and the supporting structure comprises a plurality of supporting rods in contact with the outer wall of the oil drain component;

[0009] The immersion oil recovery component comprises a collecting bottle, wherein the collecting bottle is detachably arranged below the fixing component.

[0010] The glass slide is placed in the first and second bayonet holes, tilted downward toward the middle of the oil drain pan, and its movement is limited by the limiter to drain the oil. The contact area between the first and second bayonet holes and the limiter and the glass slide is small, which can ensure a uniform flow rate of the immersion oil and prevent large-area oil stains from appearing on the glass slide.

[0011] In order to accommodate more slide mirrors, in some embodiments, the first snap-in locations are multiple and are evenly distributed on the edge of the top of the drain pan.

[0012] According to a further development of the above solution, there are multiple second clips, which are evenly distributed on the edge of the top of the support member.

[0013] In order to stably arrange the limiting member in the middle of the supporting member, a plurality of connecting plates are provided on the side wall of the limiting member, and the connecting plates are connected to the inner wall of the supporting member.

[0014] In some embodiments, the supporting structure further comprises a bearing, the outer wall of the bearing is connected to the inner wall of the fixed plate; the other end of the supporting rod is connected to the inner wall of the bearing. The bearing can drive the oil drain assembly to rotate, so as to conveniently fill the oil drain tray with glass slides in one position.

[0015] In some embodiments, the immersion oil recovery assembly further comprises an oil extraction pipeline, the bottom of which is connected to the bottom surface of the collecting bottle.

[0016] According to a further development of the above scheme, an oil extraction hole is provided at the connection between the oil extraction pipeline and the inner bottom surface of the collecting bottle.

[0017] Compared with the prior art, the present application achieves at least the following beneficial effects: the present device supports the glass slide through the oil draining assembly and fixes the glass slide through the relatively shallow first and second bayonet holes, thereby reducing the contact area between the glass slide and the oil draining assembly and avoiding excessive influence on the fluidity of the immersion oil at this position; the contact area between the entire device and the glass slide is small, which can also prevent large-area oil marks from being left on the surface of the glass slide; the oil draining assembly of the present device is a disc-like structure, and the first and second bayonet holes are relatively shallow. Since the oil draining group, the fixing assembly and the immersion oil recovery assembly are all detachable structures, there are fewer dead corners and it is relatively convenient to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] One or more embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings, in which:

[0019] Figure 1 This is a three-dimensional schematic diagram of a slide oil recovery device according to one embodiment of the present application;

[0020] Figure 2 It is a front cross-sectional view of the recovery device of the present application;

[0021] Figure 3 A three-dimensional schematic diagram of an oil draining component of a recovery device of the present application;

[0022] Figure 4 A three-dimensional schematic diagram of a two-layer oil drain assembly installed for the recovery device of the present application;

[0023] Figure 5 A three-dimensional display diagram of the fixing components of the recovery device of the present application;

[0024] Figure 6 This is a three-dimensional display diagram of the guiding structure of the recovery device of the present application.

[0025] The numbers in the figure are: 1. fixed plate; 11. retaining edge; 12. clamping mechanism; 121. connecting ring; 122. spring piece; 123. arc edge; 2. connecting head; 3. oil extraction pipeline; 31. oil extraction hole; 4. guiding structure; 41. sliding sleeve; 42. extension plate; 43. first guide plate; 44. second guide plate; 45. third guide plate; 46. fourth guide plate; 47. clamping block; 5. glass slide; 6. collecting bottle; 61. clamping rib; 7. oil drain pan; 71. first bayonet; 72. supporting bayonet; 73. positioning shallow groove; 8. bearing; 9. fixing ring; 91. supporting rod; 10. limiting member; 20. supporting member; 201. second bayonet; 30. connecting plate; 40. connecting rod; 50. supporting rod. DETAILED DESCRIPTION

[0026] The present application will be described in detail below with reference to the exemplary embodiments in the accompanying drawings. However, it should be understood that the present application can be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. These embodiments are provided here to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.

[0027] In the description of the present application, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0028] The invention aims at the defect in the prior art that the contact area between the glass slide immersion oil collecting device and the glass slide is large, which affects the flow of the immersion oil. After careful analysis, the inventor found that the main reason for the above problems is that the existing patent technology provides a slide microscope oil collection device for the method of collecting immersion oil. The patent mentioned in the specification that "the clamping sheet clamps the slide to prevent the slide from being damaged or scratched during vibration, and the elastic pad increases the protection of the slide". In order to reduce vibration, the technical solution of "a group of connecting springs are connected between the substrate and the inner wall of the slide groove" is adopted. It can be seen from the technical solution that the slide is clamped by the clamping sheet. When the slide vibrates and swings to the right, the clamping sheet on the right side is vibrated and the spring is compressed with the swing of the slide, and a gap appears on the left side of the slide. The spring on the back of the clamping sheet on the left side will expand to move the elastic pad on this side toward the slide and contact the slide. Due to the viscosity of the immersion oil, the immersion oil does not actually flow much, and the elastic pad contacts the slide again. The flow rate of the immersion oil at this position may be relatively slow, and the contact area between the clamping sheet and the slide is large. After frequent contact and separation with the slide, it is easy to leave oil marks on the slide, which may affect the next use. In addition, using vibration to drain the oil will make the immersion oil on the glass slide more likely to splash. The immersion oil will infiltrate into various gaps and corners inside the guide device through splashing in different directions, such as the connection between the clamping plate and the spring. Due to the obstruction of the guide plate slope and the irregular surface of the spring, this position is difficult to clean during cleaning. In addition, because the overall structure of the collection device is large and there are many clamping plates, there may be many blind spots when cleaning. Based on the above analysis, the inventor has made structural improvements to the glass slide immersion oil collection device.

[0029] like Figure 1-5 As shown, in one embodiment of a slide 5 lens oil recovery device of the present application, the device includes:

[0030] An oil draining assembly for placing and supporting a glass slide 5, the oil draining assembly comprises an oil draining tray 7 which is gradually concave downward from the edge to the middle, a first bayonet 71 with a depth of 1-3 mm is provided on the top of the oil draining tray 7, the bottom of the left end of the glass slide 5 is placed in the first bayonet 71 with a clearance fit, an oil draining hole is provided in the middle of the oil draining tray 7, a cylindrical support member 20 is installed in the oil draining hole, at least two connecting rods 40 with a geometric cross-section are connected to the side of the support member 20, the other end of the connecting rod 40 is fixedly connected to the inner wall of the oil draining tray 7, so that the support member 20 is fixed above the oil draining hole; a second bayonet 201 which is colinearly distributed with the first bayonet 71 is provided on the top of the support member 20, the bottom of the right end of the glass slide 5 is placed in the second bayonet 201 with a clearance fit, and the glass slide 5 is inclined toward the oil draining hole when draining oil; in order to prevent the glass slide 5 from excessively moving toward the center of the oil draining hole, a cylindrical stopper 10 is fixedly connected to the middle of the support member 20 with a clearance;

[0031] A fixed component for supporting the oil drain component is arranged on the outside of the oil drain component, and the fixed component includes a fixed plate 1, the bottom of which is open, and a supporting structure for supporting the oil drain component is arranged inside the fixed plate 1, and the supporting structure includes a plurality of supporting rods 91 in contact with the outer wall of the oil drain component, and the supporting rods 91 can be a rectangular structure, and the outer wall of the oil drain plate 7 is clamped at an interface (not shown), and one end of the supporting rod 91 facing the opening center of the bottom of the fixed plate 1 extends into the clamping interface to support and fix the oil drain component.

[0032] And a immersion oil recovery assembly for collecting immersion oil, which comprises a collecting bottle 6, and the collecting bottle 6 is detachably arranged below the fixed assembly.

[0033] In order to reduce the volume of the entire device and to be able to place more glass slides 5, as Figure 3 As shown, there are a plurality of first snap-in openings 71, which are evenly distributed on the edge of the top of the oil drain pan 7; there are also a plurality of second snap-in openings 201, which are evenly distributed on the edge of the top of the support member 20. The glass slide 5 is placed on the first snap-in openings 71 and the second snap-in openings 201 from top to bottom, and the lower right corner of the glass slide 5 is against the outer wall of the stopper 10.

[0034] The side wall of the limiting member 10 is provided with at least two connecting plates 30, and the connecting plates 30 are connected to the inner wall of the supporting member 20. In this way, the limiting member 10 can be fixed inside the supporting member 20. The limiting member 10 is higher than the supporting member 20.

[0035] The fixed plate 1 is used to receive some dripping immersion oil, and a rib 11 is provided on the top of the fixed plate 1 to prevent the immersion oil from splashing.

[0036] Since the device is circular, in order to facilitate placing the glass slide 5 at the same position, the supporting structure also includes a bearing 8, the outer wall of the bearing 8 is fixedly connected to the inner wall of the middle and lower part of the fixed plate 1; a fixing ring 9 is installed on the inner wall of the bearing 8 in an interference fit manner, and the other end of the supporting rod 91 is connected to the inner wall of the fixing ring 9 in the bearing 8. After placing the oil drain pan 7 on the supporting structure, the operator can rotate the oil drain pan 7 so that the first bayonet 71 and the second bayonet 201 where the glass slide 5 is not placed face themselves, and the operator does not need to move the position.

[0037] The immersion oil recovery assembly also includes an oil extraction pipeline 3 with a hexagonal exterior and a hollow interior, and the bottom of the oil extraction pipeline 3 is connected to the bottom surface of the interior of the collecting bottle 6. An oil extraction hole 31 is provided at the connection between the oil extraction pipeline 3 and the bottom surface of the interior of the collecting bottle 6. The oil extraction pipeline 3 vertically passes through the support 20 and extends out of the device. A sealed connector 2 is installed on the top of the oil extraction pipeline 3, and the immersion oil collected to a certain liquid level in the collecting bottle 6 is extracted through an external negative pressure hose.

[0038] Figure 2 The arrows indicate the trajectory of the immersion oil flow, and the trajectory is explained as follows: after the immersion oil drips from the glass slide 5, it drips into the collection bottle 6 from the gap between the oil drain hole and the support member 20 and the gap between the support member 20 and the stopper 10, and then is extracted upward through the oil extraction pipeline 3. The advantage of this oil extraction method is that the collection bottle 6 does not need to be frequently dumped to prevent the outer wall of the collection bottle 6 from being attached with oil; compared with the oil extraction hole 31 provided on the side wall or the bottom of the collection bottle 6, the oil extraction pipeline 3 is arranged in the middle of the collection bottle 6 to ensure that the collection bottle 6 is placed stably without being pulled or shaken, and the glass slide 5 on the oil drain tray 7 can stably drain the oil.

[0039] As mentioned above, the collecting bottle 6 is detachably arranged under the fixing component. Since there are many glass slides 5 on the oil draining component, in order to avoid the weight leaning to one side and causing the fixing plate 1 to tilt during the placement of the glass slides 5, a connecting clamping mechanism 12 is provided at the bottom of the fixing plate 1. The connecting clamping mechanism 12 includes a connecting ring 121. The connecting ring 121 extends into the collecting bottle 6. At the bottom of the connecting ring 121, at least two spring pieces 122 matching the connecting ring 121 are connected. The bottom of the spring piece 122 is an arc edge 123 turned up toward both sides. In addition, the inner wall of the collecting bottle 6 is provided with arc-shaped protruding clamping ribs 61 corresponding to the number of spring pieces 122. When installing the fixing assembly, the connecting ring 121 and the spring piece 122 are extended into the collecting bottle 6. When the arc edge 123 of the spring piece 122 contacts the snap-fit ​​rib 61, the fixing assembly is pressed down with force so that the arc edge 123 is snap-fitted to the bottom of the snap-fit ​​rib 61. At this time, the arc edge 123 and the snap-fit ​​rib 61 contact to generate friction, thereby limiting the movement of the fixing plate 1. When the fixing assembly needs to be disassembled, the fixing plate 1 is rotated so that the arc edge 123 leaves the snap-fit ​​rib 61, and the fixing assembly can be taken out upwards.

[0040] In order to improve the utilization rate of this recovery device, Figure 3 and Figure 4 As shown, a support bayonet 72 is provided between the two first bayonet openings 71 at the edge of the oil drain pan 7, a support rod 50 is installed in the support bayonet opening 72, and the top of the support rod 50 is fixedly connected to an oil drain pan 7. A right-angle bayonet is provided at the bottom of the support rod 50, and the support rod 50 is prevented from moving downward by being installed in the support bayonet opening 72.

[0041] In addition, considering that for installation ports of the type with denser first bayonet 71 and second bayonet 201, after placing more glass slides 5, there may be visual confusion about the positions of the first bayonet 71 and the second bayonet 201, such as a glass slide 5 mirror oil recovery device (application number: 202222713288.X), the two card strips of the technical solution are provided with dense glass slide 5 slots. When placing the glass slide 5, the left end of the glass slide 5 may be placed in the first glass slide 5 slot and the right end of the glass slide 5 may be placed in the second glass slide 5 slot. In this case, the glass slide 5 needs to be taken out and replaced. At this time, the glass slide 5 needs to be contacted for a second time. The more contacts the glass slide 5 has, the more likely it is that impurities will appear on the mirror surface of the glass slide 5, and the glass slide 5 will be placed incorrectly frequently, which will easily prolong the time for placing the glass slide 5 and reduce the efficiency of placement.

[0042] In this embodiment, a guiding structure 4 is provided to solve the above-mentioned problem.

[0043] like Figure 6 As shown, the guide structure 4 includes a sliding sleeve 41 matching the shape of the oil extraction pipeline 3, the front end of the sliding sleeve 41 is connected to a rectangular extension plate 42 with a certain width, the left side of the bottom of the extension plate 42 is connected to a rectangular first guide plate 43, and the right side is connected to a rectangular second guide plate 44, the left side of the front end of the extension plate 42 is connected to a right-angle plate structure third guide plate 45, and the right side is connected to a right-angle plate structure fourth guide plate 46, and a guide groove is formed between the third guide plate 45, the fourth guide plate 46 and the extension plate 42. The third guide plate 45 and the fourth guide plate 46 extend downward to the middle and upper positions of the first guide plate 43 and the second guide plate 44.

[0044] A right-angled block 47 is connected to the bottom of the second guide plate 44. The block 47 is a plastic structure with a certain elasticity, so that a groove-shaped space is formed at the bottom of the second guide plate 44. Figure 1 and Figure 4 As shown, the edge of the oil drain pan 7 is located in the grooved space. Figure 3As shown, a plurality of equally spaced shallow positioning grooves 73 are provided on the outer wall of the oil drain pan 7 (distributed on the right side of the first clamping opening 71, and may be in the shape of a V-shaped groove, an arc-shaped groove or other types of grooves), and one bent end of the clamping block 47 is disposed in the shallow positioning groove 73. When the oil drain pan 7 rotates, the bent end of the clamping block 47 is slightly deformed and moves out of the shallow positioning groove 73.

[0045] In addition, a screw hole (not shown) is provided on the outer wall of the sliding sleeve 41 , and a bolt (not shown) is screwed into the screw hole. The guide structure 4 is fixed to the oil extraction pipeline 3 by tightening the bolt.

[0046] When the guide structure 4 is used, the sliding sleeve 41 is mounted and fixed on the oil extraction pipeline 3, so that the edge of the oil drain pan 7 is located in the groove space, and the bent end of the clamping block 47 is located in the positioning shallow groove 73, and then the glass slide 5 is clamped by tweezers and put into the guide groove between the third guide plate 45, the fourth guide plate 46 and the extension plate 42. Because there is immersion oil on the glass slide 5, the glass slide 5 will adhere to the first guide plate 43 and the second guide plate 44 through the immersion oil, and then the top surface of the glass slide 5 is pressed down by tweezers, and the glass slide 5 passes through the first guide plate 43 and the second guide plate 44. 4, one end of the glass slide 5 first enters the first clamping opening 71 of the oil drain pan 7, and the other end of the glass slide 5 is moved out of the third guide plate 45 and then obliquely clamped in the second clamping opening 201 of the support member 20, so that the glass slide 5 is quickly placed. Then, the oil drain assembly is rotated by rotating the limit member 10 until the bent end of the clamping block 47 is clamped in the next positioning shallow groove 73, and the glass slide 5 can be continuously placed into the new first clamping opening 71 and the second clamping opening 201. The guidance of the guide structure 4 can prevent the glass slide 5 from being placed incorrectly.

[0047] In addition, after the glass slides 5 are placed, the block 47 of the guide structure 4 is opened in the positioning shallow groove 73, which can also prevent the oil draining component from rotating.

[0048] Before using the device, first clamp the fixed component to the bottle mouth of the collection bottle 6 of the immersion oil recovery component, then place an oil drain component on the fixed component, and after the oil drain pan 7 and the supporting rod 91 of the oil drain component are clamped, set the guide structure 4 on the oil extraction pipeline 3. When in use, as described above, the glass slides 5 are sequentially placed on the oil drain pan 7 by guiding the guide structure 4 until the glass slides 5 are placed on the oil drain pan 7 in a circular manner. Figure 1 When arranging double layers, first remove the guide structure 4, as shown Figure 4 As shown, the drain pan 7 with the support rod 50 connected to the bottom is clamped into the support clamping hole 72 of the drain pan 7 in the fixed assembly through the support rod 50, and then the guide structure 4 is set on the oil extraction pipeline, and the drain assembly is rotated in the above manner to place a new glass slide 5. After the placement is completed, the clamping block 47 of the guide structure 4 is opened in the positioning shallow groove 73, which can also prevent the drain assembly from rotating.

[0049] The collecting bottle 6 is preferably made of a transparent material so that the liquid level of the internal immersion oil can be observed, and a filter can be placed inside the collecting bottle 6 and below the clamping rib 61 to filter the immersion oil. Considering that the oil draining time is relatively long, a transparent cover with holes is preferably arranged outside the oil draining component and above the fixed component, and the bottom of the cover is placed inside the retaining edge 11 of the fixed plate 1, which can prevent dust from contacting the glass slide 5 and allow air to circulate.

[0050] The retaining edge 11 also has the function of preventing the mirror oil from splashing outward when the oil draining assembly rotates.

[0051] The device supports the glass slide 5 through the oil draining assembly, and fixes the glass slide 5 through the shallow first bayonet 71 and the second bayonet 201, which can reduce the contact area between the glass slide 5 and the oil draining device, and avoid excessively affecting the fluidity of the immersion oil at this position; the contact area between the entire device and the glass slide 5 is small, which can also prevent large-area oil marks from being left on the surface of the glass slide 5; the oil draining assembly of the device is a disc-like structure, and the first bayonet 71 and the second bayonet 201 are shallow in depth. Because the oil draining group, the fixing assembly and the immersion oil recovery assembly are all detachable structures, there are fewer dead angles, and it is relatively easy to clean. The device guides the placement of the glass slide 5 through the guide structure 4 to prevent the problem of wrong placement, thereby ensuring the efficiency of placing the glass slide 5. In addition, the overall structure of the device is compact, and it occupies a small area, which fits the complex use scenarios of the laboratory.

[0052] It should be understood that all the above embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present application should be within the protection scope of the present application.

Claims

1. A slide oil recovery device, characterized in that: include: The oil drain assembly comprises a concave oil drain pan, a first bayonet is provided on the top of the oil drain pan, an oil drain hole is provided in the middle, a support is provided in the oil drain hole, a second bayonet is provided on the top of the support and is collinear with the first bayonet; a limiting member is fixedly connected to the middle of the support with a gap; A fixed component is arranged outside the oil drain component, the fixed component comprises a fixed plate, the bottom of the fixed plate is open, a supporting structure for supporting the oil drain component is arranged inside the fixed plate, and the supporting structure comprises a plurality of supporting rods in contact with the outer wall of the oil drain component; The immersion oil recovery component comprises a collecting bottle, wherein the collecting bottle is detachably arranged below the fixing component.

2. The recovery device according to claim 1, characterized in that: There are several first snap-in openings, which are evenly distributed on the edge of the top of the oil drain pan.

3. The recovery device according to claim 2, characterized in that: The second clips are in a plurality of locations and are evenly distributed on the edge of the top of the support member.

4. The recovery device according to claim 1, characterized in that: The side wall of the limiting member is provided with a plurality of connecting plates, and the connecting plates are connected to the inner wall of the supporting member.

5. The recovery device according to claim 1, characterized in that: A retaining edge is arranged on the top of the fixing plate.

6. The recovery device according to claim 1, characterized in that: The supporting structure also includes a bearing, the outer wall of the bearing is connected to the inner wall of the fixed plate; the other end of the supporting rod is connected to the inner wall of the bearing.

7. The recovery device according to any one of claims 1 to 6, characterized in that: The immersion oil recovery assembly also includes an oil extraction pipeline, the bottom of which is connected to the bottom surface of the collecting bottle.

8. The recovery device according to claim 7, characterized in that: An oil extraction hole is provided at the connection between the oil extraction pipeline and the inner bottom surface of the collecting bottle.

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