A roller-type adhesive device for collecting lunar dust

Abstract

This invention relates to a roller-type adhesive device for collecting lunar dust, comprising a housing and two parallel components rotatably mounted within the housing: a check roll, an adhesive cloth roll, a sealing film roll, a tensioning roller, and a sealing closing roller. The adhesive cloth roll and the sealing film roll are located on opposite sides of the middle of the check roll. There are two sealing closing rollers located on opposite sides below the check roll. A tensioning roller is located below each of the adhesive cloth roll and the sealing film roll. A gear is coaxially fixed to one end of the check roll. A vertically arranged rack that moves up and down is installed inside the housing, meshing with the gear. Adhesive cloth is wound on the adhesive cloth roll, and a sealing film is wound on the sealing film roll. The outer end of the adhesive cloth passes sequentially around the two sealing closing rollers and the two tensioning rollers before connecting to the check roll. The outer end of the sealing film passes diagonally below the corresponding sealing closing roller and connects to the check roll.

Description

Technical Field

[0001] This invention relates to the field of lunar sample collection technology, specifically to a roller-type adhesive device for collecting lunar dust. Background Technology

[0002] Lunar dust is a fine component of lunar regolith, generally referring to lunar regolith particles with a diameter less than 1 mm. Representative lunar dust samples have a median particle size between 40 μm and 130 μm, with an average particle size of 70 μm. Particles smaller than 20 μm account for 10%–20% of the weight. Lunar dust is unbonded particulate matter produced during the Moon's formation process by repeated impacts from meteorites, solar wind, and cosmic rays. It mainly consists of crystalline grains, larger igneous rock fragments, exfoliated debris, and microscopic metallic particles. Lunar dust possesses unique chemical composition, spectral, magnetic, electrical, and micromechanical properties, making it an important sample for studying the interaction between lunar surface materials and the space environment. It also holds significant research value for ensuring the safety of astronauts and operational agencies on the lunar surface. However, current research on lunar dust samples has limitations, lacking detailed analysis of its physicochemical properties and formation processes, which restricts a deeper understanding of lunar dust formation mechanisms, natural / anthropogenic dust emission patterns on the lunar surface, and lunar dust migration mechanisms.

[0003] Obtaining lunar dust samples will provide important samples for clarifying the formation mechanism and microscopic products of lunar dust, determining the physicochemical properties and causes of lunar dust, and revealing the mechanism of lunar dust emission and the laws of dust migration and movement. It has important research significance and is also of great engineering significance for ensuring the safety of astronauts and lunar surface activities.

[0004] Currently, there are no dedicated collection devices on the market for collecting lunar dust samples. Mechanisms designed for other purposes are often incompatible with the requirements of independence, contamination resistance, human-machine interface operability, and safety in lunar sample collection, and therefore cannot meet the actual needs of collecting lunar dust samples. Some lunar dust sample collection solutions require carrying multiple 500g box-shaped devices for collection, but these solutions cannot meet the needs of collecting multiple samples at different locations with relatively small weights. Summary of the Invention

[0005] In order to solve one or more technical problems existing in the prior art, the present invention provides a roller-type adhesive device for collecting lunar dust.

[0006] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: The present invention provides a roller-type adhesive device for collecting lunar dust, including a housing and a check roll, an adhesive cloth roll, a sealing film roll, a tensioning roller shaft, and a sealing closing roller shaft that are rotatably assembled in the housing and parallel to each other. The adhesive cloth roll and the sealing film roll are respectively located on both sides of the middle of the check roll. There are two sealing closing roller shafts, which are respectively located on both sides below the check roll. A tensioning roller shaft is provided below each of the adhesive cloth roll and the sealing film roll. A ratchet is coaxially fixed at one end of the check roll. A gear is rotatably installed in the housing and arranged coaxially and spaced apart from the ratchet. A paddle is connected to the gear to drive the ratchet to rotate in one direction. A rack that can move up and down and meshes with the gear is also installed in the housing.

[0007] The adhesive fleece roll is wound with adhesive fleece, and the encapsulation film roll is wound with encapsulation film. The outer end of the adhesive fleece passes through two encapsulation closing roller shafts and two tension roller shafts in sequence and is connected to the check roll. The outer end of the encapsulation film passes through the encapsulation closing roller shaft diagonally below the encapsulation film roll and is connected to the check roll. The section of the adhesive fleece located below the two tension roller shafts is the adhesive section. The adhesive section can be exposed from the sampling port at the bottom of the housing and its lower surface is the adhesive surface. During the rotation of the check roll, the encapsulation film overlaps on the adhesive surface and is wound together with the adhesive fleece onto the check roll.

[0008] The beneficial effects of the present invention are as follows: The roller-type adhesive device for collecting lunar dust can drive the rack movement through a single-degree-of-freedom lifting motion, and use the rack to drive the anti-reverse roller to rotate, thereby driving the adhesive cloth roller and the encapsulation film roller to move in tandem, so that the adhesive cloth and the encapsulation film are squeezed against each other to maintain the original state of lunar dust collection, and realize multiple independent collection of lunar dust particle samples at multiple locations.

[0009] Based on the above technical solution, the present invention can be further improved as follows.

[0010] Furthermore, the two sealing closing rollers are respectively a first sealing closing roller and a second sealing closing roller, and the two tensioning rollers are respectively a first tensioning roller and a second tensioning roller. The first tensioning roller is located obliquely below the adhesive fabric roll roller and close to the check roll roller, and the second tensioning roller is located obliquely below the sealing film roll roller and close to the check roll roller. The first tensioning roller and the second tensioning roller are respectively located directly below the adhesive fabric roll roller and the sealing film roll roller. The first sealing closing roller is located obliquely above the first tensioning roller, and the second sealing closing roller is located obliquely above the second tensioning roller. The distance between the first tensioning roller and the second tensioning roller is greater than the distance between the first sealing closing roller and the second sealing closing roller.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by reasonably setting the positions of the tensioning roller and the sealing closing roller, the adhesive cloth can be effectively tightened to form a horizontally arranged adhesive section.

[0012] Furthermore, the outer end of the adhesive fleece passes sequentially around the first sealing closing roller shaft, the first tensioning roller shaft, and the second tensioning roller shaft, and then passes around the bottom of the second sealing closing roller shaft before being connected to the check roll. The outer end of the sealing film passes around the second sealing closing roller shaft and overlaps with the adhesive fleece before being connected to the check roll.

[0013] Furthermore, a first gear cover and a second gear cover are fixedly installed at both ends of the gear shaft of the gear, and the first gear cover and the second gear cover are rotatably connected to the housing through bearings. The first gear cover is arranged close to the ratchet and a gap is reserved between it and the ratchet. The paddle is fixed to the peripheral edge of the first gear cover.

[0014] Furthermore, the adhesive surface is flush with the bottom surface of the sampling port at the bottom of the housing or protrudes from the sampling port by a predetermined height.

[0015] Furthermore, a connecting sleeve is fixed to the top of the housing. The connecting sleeve is vertically arranged, and a connector rod is fitted inside the connecting sleeve. The upper end of the connector rod extends out from the top of the connecting sleeve, and a rack drive rod is fixed to the lower end of the connector rod. A vertically arranged first connecting hole is opened on the side wall of the connecting sleeve. The rack drive rod extends horizontally from the first connecting hole and is fixedly connected to the upper end of the rack. A return spring is fitted on the connector rod. The upper end of the return spring abuts against the inner side wall of the top of the connecting sleeve, and the lower end of the return spring abuts against the rack drive rod.

[0016] Pull the connector rod upward and compress the reset spring. The rack drives the gear to rotate. The gear drives the anti-return roller to rotate through the paddle and ratchet. This, in turn, drives the adhesive cloth roller and the packaging film roller to rotate. This causes a new section of adhesive cloth on the adhesive cloth roller to move to the sampling port as the adhesive section. After the adhesive section completes the collection of the lunar dust sample, the roller-type adhesive device is moved to the operating position and the connector rod is released. The connector rod moves downward under the action of the reset spring and drives the rack to move downward to reset.

[0017] The advantages of adopting the above-mentioned further solution are: by setting the connecting sleeve and the joint rod, it is convenient to connect with the auxiliary mechanism and facilitates the operation of astronauts.

[0018] Furthermore, a first protective cover and a second protective cover are respectively hinged to two opposite side walls of the housing. The lower end of the connector rod also drives the first and second protective covers to close or open respectively through a connecting rod assembly. When the first and second protective covers are closed, they align and block the sampling port at the bottom of the housing. When the connector rod is pulled upward, the first and second protective covers open. When the connector rod is released, the first and second protective covers close.

[0019] The beneficial effect of adopting the above-mentioned further solution is that by setting two protective covers, the sampling port at the bottom of the shell can be shielded and protected.

[0020] Furthermore, the first protective cover and the second protective cover are respectively arranged on the outer sides of both ends of the anti-rebound roller in the axial direction; the side wall of the connecting sleeve is also provided with a vertically arranged second connecting hole and a third connecting hole, which are arranged opposite to each other; the lower end of the joint rod is also fixed with a first connecting rod and a second connecting rod, which pass through the second connecting hole and the third connecting hole respectively; the first connecting rod is hinged to one end of the first protective cover and one end of the second protective cover through a first hinge rod and a second hinge rod respectively; the second connecting rod is hinged to the other end of the first protective cover and the other end of the second protective cover through a third hinge rod and a fourth hinge rod respectively.

[0021] Furthermore, the free end of the first connecting rod is a first T-shaped structure, and the free end of the second connecting rod is a second T-shaped structure. The first connecting rod is hinged to the first hinge rod and the second hinge rod through the first T-shaped structure, and the second connecting rod is hinged to the third hinge rod and the fourth hinge rod through the second T-shaped structure.

[0022] Furthermore, it also includes an auxiliary mechanism, which is detachably connected to the connector rod. Attached Figure Description

[0023] Figure 1This is a three-dimensional structural diagram of the roller-type adhesive device for collecting lunar dust according to the present invention. Figure 1 ;

[0024] Figure 2 This is a three-dimensional structural diagram of the roller-type adhesive device for collecting lunar dust according to the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the roller-type adhesive device for collecting lunar dust according to the present invention. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the internal structure of the roller-type adhesive device for collecting lunar dust according to the present invention.

[0027] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of AA;

[0028] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the roller-type adhesive device for collecting lunar dust according to the present invention. Figure 2 ;

[0029] Figure 7 This is a schematic diagram of the roller-type adhesive device for collecting lunar dust according to the present invention in use.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 100. Housing; 101. Sampling port; 102. Rack; 103. Connecting sleeve; 104. First connecting hole; 106. Third connecting hole; 107. Connecting rod; 108. Rack drive rod; 109. First connecting rod; 110. Second connecting rod; 111. First hinge rod; 112. Second hinge rod; 113. Third hinge rod; 114. Fourth hinge rod; 115. First T-shaped structure; 116. Second T-shaped structure; 117. First protective cover; 118. Second protective cover; 119. Second hinge shaft; 120. Fourth hinge shaft; 121. Fifth hinge shaft; 122. Seventh hinge shaft; 123. Eighth hinge shaft; 124. Ninth hinge shaft; 125. Tenth hinge shaft; 126. Eleventh hinge shaft; 127. Twelfth hinge shaft;

[0032] 200. Check roll; 201. Gear; 202. Ratchet; 203. Paddle; 204. Composite velvet cloth with sample; 205. First gear cover; 206. Second gear cover; 207. Bearing;

[0033] 300. Adhesive roll for the fleece; 301. Adhesive for the fleece; 302. Adhesive section;

[0034] 400. Encapsulation film roll; 401. Encapsulation film;

[0035] 500, First tensioning roller; 501, Second tensioning roller;

[0036] 600, First encapsulation closing roller shaft; 601, Second encapsulation closing roller shaft;

[0037] 700, Moon Dust. Detailed Implementation

[0038] The principles and features of the present invention are described below. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0039] Example 1

[0040] like Figures 1-7 As shown, this embodiment of a roller-type adhesive device for collecting lunar dust includes a housing 100 and a check roll 200, an adhesive cloth roll 300, a sealing film roll 400, a tension roller shaft, and a sealing closing roller shaft, all rotatably mounted within the housing 100 and parallel to each other. The adhesive cloth roll 300 and the sealing film roll 400 are located on opposite sides of the middle of the check roll 200, and there are two sealing closing roller shafts located below the check roll 200. On both sides, a tensioning roller shaft is provided below the adhesive cloth roller 300 and the encapsulation film roller 400; a ratchet 202 is coaxially fixed at one end of the anti-reverse roller 200; a gear 201 is rotatably installed inside the housing 100 and is arranged coaxially and spaced apart from the ratchet 202; a paddle 203 is connected to the gear 201 to drive the ratchet 202 to rotate in one direction; a rack 102 that can move up and down and meshes with the gear 201 is also installed inside the housing 100.

[0041] The adhesive fleece roll 300 is wound with adhesive fleece 301, and the encapsulation film roll 400 is wound with encapsulation film 401. The outer end of the adhesive fleece 301 passes through two encapsulation closing roller shafts and two tension roller shafts in sequence and is connected to the check roll 200. The outer end of the encapsulation film 401 passes through the encapsulation closing roller shaft corresponding to the encapsulation film roll 400 diagonally below and is connected to the check roll 200. The section of the adhesive fleece 301 located below the two tension roller shafts is the adhesive section 302. The adhesive section 302 can be exposed from the sampling port 101 at the bottom of the housing 100 and its lower surface is the adhesive surface. During the rotation of the check roll 200, the encapsulation film 401 overlaps on the adhesive surface and is wound together with the adhesive fleece 301 on the check roll 200.

[0042] like Figure 3 and Figure 6As shown, in a preferred embodiment, a first gear cover 205 and a second gear cover 206 are fixedly installed at both ends of the gear shaft of the gear 201, respectively. The first gear cover 205 and the second gear cover 206 are rotatably connected to the housing 100 through bearings 207. The first gear cover 205 is arranged close to the ratchet 202 and a gap is reserved between it and the ratchet 202. The paddle 203 is fixed to the peripheral edge of the first gear cover 205.

[0043] Furthermore, in this embodiment, the adhesive surface is flush with the bottom surface of the sampling port 101 at the bottom of the housing 100 or protrudes from the sampling port 101 by a predetermined height.

[0044] Specifically, a roller-type mechanism is used to coordinate the movement of a rolled adhesive tape (adhesive velvet) and a sealing film. The mutual compression between the sealing film and the adhesive velvet maintains the original state of the lunar dust collection, enabling multiple independent collections of lunar dust particles from multiple locations. In this embodiment, the adhesive velvet employs a microstructure with micrometer-level dimensions (e.g., coil, brush, or braided shapes), and is made of materials such as polyetheretherketone (PEEK), polyimide (PI), or polyamide (PA), exhibiting adhesive properties. Considering sample compatibility, the materials used in this embodiment require surface treatment processes or materials that minimize contamination of extraterrestrial samples.

[0045] In this embodiment, the anti-rebound roller 200, the velvet-adhesive roller 300, the encapsulation film roller 400, the tension roller shaft, and the encapsulation closing roller shaft are all mounted on the inner wall of the housing via bearings.

[0046] The working process of the roller-type adhesive device for lunar dust collection in this embodiment is as follows: the drive rack is lifted upwards, the rack drives the gear to rotate, and then drives the check roll to rotate unidirectionally. The check roll can be controlled by an internal ratchet mechanism to control the unidirectional rotation direction. The rotation of the check roll drives the adhesive cloth roll 300 and the encapsulation film roll 400 to move. The adhesive cloth is kept horizontal by the tension roller shaft. Finally, the adhesive surface of the adhesive cloth is adhered to the encapsulation film. The encapsulation closing roller shaft adheres the adhesive cloth and the encapsulation film together and presses them tightly. Finally, they are wound onto the check roll, completing the sample recovery. This roller-type adhesive device in this embodiment helps to maintain the relative position of lunar soil particles on the adhesive surface.

[0047] This embodiment of a roller-type adhesive device for collecting lunar dust can drive a rack to move through a single-degree-of-freedom lifting motion. The rack drives the anti-reverse roller to rotate, which in turn drives the adhesive cloth roller and the encapsulation film roller to move in tandem. This causes the adhesive cloth and the encapsulation film to squeeze each other, forming a composite cloth 204 with the sample, thus maintaining the original state of lunar dust collection and enabling multiple independent collection of lunar dust particle samples at multiple locations.

[0048] Example 2

[0049] Based on Example 1, this example provides a preferred arrangement of the encapsulated closing roller and the tensioning roller. For example... Figures 4-6 As shown, in this embodiment, the two sealing closing rollers are a first sealing closing roller 600 and a second sealing closing roller 601, and the two tensioning rollers are a first tensioning roller 500 and a second tensioning roller 501. The first tensioning roller 500 is located obliquely below the adhesive fabric roll 300 and close to the check roll 200. The second tensioning roller 501 is located obliquely below the sealing film roll 400 and close to the check roll 200. The first tensioning roller 500 and the second tensioning roller 501 are located directly below the adhesive fabric roll 300 and the sealing film roll 400, respectively. The first sealing closing roller 600 is located obliquely above the first tensioning roller 500, and the second sealing closing roller 601 is located obliquely above the second tensioning roller 501. The distance between the first tensioning roller 500 and the second tensioning roller 501 is greater than the distance between the first sealing closing roller 600 and the second sealing closing roller 601. By properly setting the positions of the tensioning roller and the sealing closing roller, the adhesive velvet can be effectively tightened to form a horizontally arranged adhesive section.

[0050] like Figures 4-7 As shown, preferably, the outer end of the adhesive velvet 301 passes sequentially around the first sealing closing roller shaft 600, the first tensioning roller shaft 500, and the second tensioning roller shaft 501, then passes around the bottom of the second sealing closing roller shaft 601 and connects to the check roll 200. The outer end of the sealing film 401 passes around the second sealing closing roller shaft 601 and overlaps with the adhesive velvet 301 to form a sample-bearing composite velvet 204, which is then connected to the check roll 200. Figure 7 As shown.

[0051] The working process of a roller-type adhesive device for collecting lunar dust in this embodiment is as follows: When the roller-type adhesive device is in working state, the rack is located above the gear. After the adhesive section 302 has finished adhesiveting the lunar dust 700, the entire adhesive device is lifted and placed in another operating position without lunar dust 700. The rack 102 moves downward and drives the anti-return roller 200 to rotate through the gear and ratchet, thereby driving the adhesive cloth roller 300 and the sealing film roller 400 to rotate. This causes the adhesive cloth 301 and the sealing film 401 to move around the first sealing closed roller shaft 600, the first tension roller shaft 500, the second tension roller shaft 501 and the second sealing closed roller shaft 601, respectively. This allows the section of the adhesive cloth 301 with lunar dust 700 to be sealed by the sealing film 401, which helps to maintain the relative position of the lunar soil particles on the adhesive surface. A new section of adhesive cloth 301 on the adhesive cloth roller 300 moves to the sampling port 101 as the adhesive section 302. When using it again, pull up the rack. At this time, the gear will rotate, and the anti-return roller will not rotate under the action of the ratchet and the paddle.

[0052] Example 3

[0053] Based on Embodiment 1 or Embodiment 2, this embodiment provides a preferred driving scheme for the rack 102. For example... Figure 1 and Figure 2 As shown, in this embodiment, a connecting sleeve 103 is fixed to the top of the housing 100. The connecting sleeve 103 is arranged vertically, and a connector rod 107 is sleeved inside the connecting sleeve 103. The upper end of the connector rod 107 passes through the top of the connecting sleeve 103, and a rack and pinion drive rod 108 is fixed to the lower end of the connector rod 107. A vertically arranged first connecting hole 104 is opened on the side wall of the connecting sleeve 103. The rack and pinion drive rod 108 passes horizontally through the first connecting hole 104 and is fixedly connected to the upper end of the rack 102. A return spring is fitted on the connector rod 107. The upper end of the return spring abuts against the inner top wall of the connecting sleeve 103, and the lower end of the return spring abuts against the rack and pinion transmission rod 108. Pulling the connector rod 107 upward and compressing the return spring causes the rack and pinion 102 to drive the gear 201 to rotate. The gear 201 drives the anti-return roller 200 to rotate through the paddle 203 and ratchet 202, which in turn drives the adhesive cloth roller 300 and the encapsulation film roller 400 to rotate. This causes a new section of adhesive cloth 301 on the adhesive cloth roller 300 to move to the sampling port 101 as the adhesive section 302. After the adhesive section 302 completes the collection of the Moon Dust 700 sample, the roller-type adhesive device is moved to the operating position and the connector rod 107 is released. The connector rod 107 moves downward under the action of the return spring and drives the rack and pinion 102 to move downward for reset. By incorporating a connecting sleeve and a connector rod, it is easy to connect with auxiliary mechanisms, facilitating operation by astronauts.

[0054] A further embodiment of this invention includes an auxiliary mechanism for the roller-type adhesive device for collecting lunar dust. This auxiliary mechanism is detachably connected to the connector rod 107. The auxiliary mechanism can be an operating rod, which is detachably connected to the connector rod 107 via a quick-connect fitting.

[0055] Example 4

[0056] Based on Embodiment 3, this embodiment provides a preferred configuration for the protective cover. For example... Figure 1 and Figure 2 As shown, in this embodiment, a first protective cover 117 and a second protective cover 118 are respectively hinged to two opposite side walls of the housing 100. The lower end of the connector rod 107 also drives the first protective cover 117 and the second protective cover 118 to close or open via a connecting rod assembly. When the first protective cover 117 and the second protective cover 118 are closed, they align and block the sampling port 101 at the bottom of the housing 100. When the connector rod 107 is pulled upward, the first protective cover 117 and the second protective cover 118 open; when the connector rod 107 is released, the first protective cover 117 and the second protective cover 118 close. By providing two protective covers, the sampling port at the bottom of the housing can be protected.

[0057] Example 5

[0058] Based on Embodiment 4, this embodiment provides a preferred hinged joint scheme for the protective cover. For example... Figure 1 and Figure 2 As shown, in this embodiment, the first protective cover 117 and the second protective cover 118 are respectively arranged on the outer sides of both ends of the anti-return roller 200 in the axial direction; the side wall of the connecting sleeve 103 is also provided with a vertically arranged second connecting hole and a third connecting hole 106, which are arranged opposite to each other. The lower end of the connector rod 107 is also fixed with a first connecting rod 109 and a second connecting rod 110, respectively. The first connecting rod 109 and the second connecting rod 110 pass through the second connecting hole and the third connecting hole 106, respectively. The first connecting rod 109 is hinged to one end of the first protective cover 117 and one end of the second protective cover 118 through the first hinge rod 111 and the second hinge rod 112, respectively. The second connecting rod 110 is hinged to the other end of the first protective cover 117 and the other end of the second protective cover 118 through the third hinge rod 113 and the fourth hinge rod 114, respectively.

[0059] Preferred, such as Figure 1 and Figure 2As shown, in this embodiment, the free end of the first connecting rod 109 is a first T-shaped structure 115, and the free end of the second connecting rod 110 is a second T-shaped structure 116. The first connecting rod 109 is hinged to the first hinge rod 111 and the second hinge rod 112 through the first T-shaped structure 115, and the second connecting rod 110 is hinged to the third hinge rod 113 and the fourth hinge rod 114 through the second T-shaped structure 116.

[0060] Specifically, such as Figure 1 and Figure 2 As shown, in this embodiment, the two ends of the first protective cover 117 are hinged to the housing 100 via a first hinge axis and a second hinge axis 119, respectively. The two ends of the second protective cover 118 are hinged to the housing 100 via a third hinge axis and a fourth hinge axis 120, respectively. The first hinge rod 111 is hinged to the first protective cover 117 via a fifth hinge axis 121, which is arranged adjacent to the first hinge axis. The second hinge rod 112 is hinged to the second protective cover 118 via a sixth hinge axis, which is arranged adjacent to the second hinge axis 119. The third hinge rod 113 is hinged to the first protective cover 117 via a seventh hinge axis 122, which is arranged adjacent to the third hinge axis. The fourth hinge rod 114 is hinged to the second protective cover 118 via an eighth hinge axis 123, which is arranged adjacent to the fourth hinge axis 120.

[0061] Specifically, when the first protective cover 117 and the second protective cover 118 are closed, the distance between the fifth and sixth hinge axes is greater than the distance between the first and second hinge axes, and the distance between the seventh and eighth hinge axes is greater than the distance between the third and fourth hinge axes; when the first and second protective covers are open, the fifth hinge axis is located above the first hinge axis, the sixth hinge axis is located above the second hinge axis, the seventh hinge axis is located above the third hinge axis, and the eighth hinge axis is located above the fourth hinge axis.

[0062] like Figure 1 and Figure 2As shown, in this embodiment, the first and second hinge axes 119 are coaxially arranged, the third and fourth hinge axes 120 are coaxially arranged, the fifth hinge axis 121 and the seventh hinge axis 122 are coaxially arranged, and the sixth and eighth hinge axes are coaxially arranged. In this embodiment, the first T-shaped structure 115 is hinged to the first hinge rod 111 and the second hinge rod 112 via the ninth hinge axis 124 and the tenth hinge axis 125, respectively. The second T-shaped structure 116 is hinged to the third hinge rod 113 and the fourth hinge rod 114 via the eleventh hinge axis 126 and the twelfth hinge axis 127, respectively. Specifically, the ninth hinge axis 124 and the eleventh hinge axis 126 are coaxially arranged, and the tenth hinge axis 125 and the twelfth hinge axis 127 are coaxially arranged. The non-coaxial hinge axes are arranged parallel to each other.

[0063] The working process of a roller-type adhesive device for collecting lunar dust in this embodiment is as follows: First, without contacting the lunar dust, the connector rod is pulled upwards, compressing the return spring. This opens the first and second protective covers, exposing the sampling port. Simultaneously, the rack moves upwards to the working position. During this upward movement, the rack drives the gear to rotate, but does not rotate the three rollers. After the entire roller-type adhesive device has collected lunar dust on the lunar surface, it is transferred to an operating position free of lunar dust, and the connector rod is released. Under the action of the return spring, the connector rod automatically moves downwards, driving the rack downwards. The rack drives the gear to rotate, and the gear, through a ratchet and a paddle, drives the ratchet and the anti-return roller to rotate. Simultaneously, it drives the adhesive cloth roller and the sealing film roller to rotate, allowing the sampled section to be preserved through the sealing film, exposing a new adhesive section. At this time, the first and second protective covers automatically close. For the next sampling, the connector rod is pulled upwards, moving the rack upwards to the working position, and the sampling operation is repeated.

[0064] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0068] 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A roller-type adhesive device for collecting lunar dust, characterized in that, The device includes a housing and two parallel components rotatably mounted within the housing: a check roll, a fabric-adhesive roll, a film-sealing roll, a tensioning roller, and a sealing roller. The fabric-adhesive roll and the film-sealing roll are located on opposite sides of the middle of the check roll. There are two sealing rollers located on opposite sides below the check roll. Below each of the fabric-adhesive roll and the film-sealing roll, there is a tensioning roller. A ratchet is coaxially fixed to one end of the check roll. Gears, coaxially spaced from the ratchet, are rotatably mounted within the housing. A paddle is connected to the gear to drive the ratchet to rotate in one direction. A rack that can move up and down and meshes with the gear is also installed within the housing. The adhesive fleece roll is wound with adhesive fleece, and the encapsulation film roll is wound with encapsulation film. The outer end of the adhesive fleece passes through two encapsulation closing roller shafts and two tension roller shafts in sequence and is then connected to the check roll. The outer end of the encapsulation film passes through the encapsulation closing roller shaft diagonally below the encapsulation film roll and is then connected to the check roll. The section of the adhesive fleece located below the two tension roller shafts is the adhesive section, which can be exposed from the sampling port at the bottom of the housing and has an adhesive surface on its lower surface. During the rotation of the check roll, the encapsulation film overlaps on the adhesive surface and is wound together with the adhesive fleece onto the check roll. A connecting sleeve is fixed to the top of the housing. The connecting sleeve is arranged vertically, and a connector rod is fitted inside the connecting sleeve. The upper end of the connector rod passes through the top of the connecting sleeve, and a rack and pinion drive rod is fixed to the lower end of the connector rod. A vertically arranged first connecting hole is opened on the side wall of the connecting sleeve. The rack and pinion drive rod passes horizontally through the first connecting hole and is fixedly connected to the upper end of the rack. A return spring is fitted on the connector rod. The upper end of the return spring abuts against the inner side wall of the top of the connecting sleeve, and the lower end of the return spring abuts against the rack and pinion drive rod.

2. The roller-type adhesive device for collecting lunar dust according to claim 1, characterized in that, The two sealing closing rollers are designated as a first sealing closing roller and a second sealing closing roller, and the two tensioning rollers are designated as a first tensioning roller and a second tensioning roller. The first tensioning roller is located diagonally below the adhesive fabric roll roller and close to the check roll roller, and the second tensioning roller is located diagonally below the sealing film roll roller and close to the check roll roller. The first tensioning roller and the second tensioning roller are located directly below the adhesive fabric roll roller and the sealing film roll roller, respectively. The first sealing closing roller is located diagonally above the first tensioning roller, and the second sealing closing roller is located diagonally above the second tensioning roller. The distance between the first tensioning roller and the second tensioning roller is greater than the distance between the first sealing closing roller and the second sealing closing roller.

3. The roller-type adhesive device for collecting lunar dust according to claim 2, characterized in that, The outer end of the adhesive fleece passes sequentially around the first sealing closing roller shaft, the first tensioning roller shaft, and the second tensioning roller shaft, and then passes around the bottom of the second sealing closing roller shaft before being connected to the check roll. The outer end of the sealing film passes around the second sealing closing roller shaft and overlaps with the adhesive fleece before being connected to the check roll.

4. The roller-type adhesive device for collecting lunar dust according to claim 1, characterized in that, The gear shaft of the gear is fixedly mounted with a first gear cover and a second gear cover at both ends. The first gear cover and the second gear cover are rotatably connected to the housing through bearings. The first gear cover is arranged close to the ratchet and a gap is reserved between it and the ratchet. The paddle is fixed to the peripheral edge of the first gear cover.

5. The roller-type adhesive device for collecting lunar dust according to claim 1, characterized in that, The adhesive surface is flush with the bottom surface of the sampling port at the bottom of the housing or protrudes from the sampling port by a predetermined height.

6. A roller-type adhesive device for collecting lunar dust according to any one of claims 1 to 5, characterized in that, Pull the connector rod upward and compress the reset spring. The rack drives the gear to rotate. The gear drives the anti-return roller to rotate through the paddle and ratchet. This, in turn, drives the adhesive cloth roller and the packaging film roller to rotate. This causes a new section of adhesive cloth on the adhesive cloth roller to move to the sampling port as the adhesive section. After the adhesive section completes the collection of the lunar dust sample, the roller-type adhesive device is moved to the operating position and the connector rod is released. The connector rod moves downward under the action of the reset spring and drives the rack to move downward to reset.

7. The roller-type adhesive device for collecting lunar dust according to claim 6, characterized in that, A first protective cover and a second protective cover are respectively hinged to two opposite side walls of the housing. The lower end of the connector rod also drives the first and second protective covers to close or open via a connecting rod assembly. When the first and second protective covers are closed, they align and block the sampling port at the bottom of the housing. When the connector rod is pulled upward, the first and second protective covers open. When the connector rod is released, the first and second protective covers close.

8. The roller-type adhesive device for collecting lunar dust according to claim 7, characterized in that, The first protective cover and the second protective cover are respectively arranged on the outer sides of both ends of the anti-rebound roller in the axial direction; the side wall of the connecting sleeve is also provided with a vertically arranged second connecting hole and a third connecting hole, which are arranged opposite to each other. The lower end of the joint rod is also fixed with a first connecting rod and a second connecting rod, which pass through the second connecting hole and the third connecting hole respectively. The first connecting rod is hinged to one end of the first protective cover and one end of the second protective cover through a first hinge rod and a second hinge rod respectively. The second connecting rod is hinged to the other end of the first protective cover and the other end of the second protective cover through a third hinge rod and a fourth hinge rod respectively.

9. A roller-type adhesive device for collecting lunar dust according to claim 8, characterized in that, The free end of the first connecting rod is a first T-shaped structure, and the free end of the second connecting rod is a second T-shaped structure. The first connecting rod is hinged to the first hinge rod and the second hinge rod through the first T-shaped structure, and the second connecting rod is hinged to the third hinge rod and the fourth hinge rod through the second T-shaped structure.

10. A roller-type adhesive device for collecting lunar dust according to claim 6, characterized in that, It also includes an auxiliary mechanism, which is detachably connected to the connector rod.

Images