A device for collecting sediments in a transition zone between deep and shallow water

Abstract

The application relates to the technical field of sediment collecting devices, and discloses a deep-shallow layer transition water area sediment collecting device, which comprises a collecting frame, the whole of the collecting frame is in the shape of a Chinese character, a cutting mechanism is arranged on the inner wall of the collecting frame and can slide up and down, a storage box mechanism and a storage cover mechanism are fixedly installed on the two sides of the collecting frame through mounting rods, an inner wall of the storage cover mechanism is provided with a sealing cover, a storage rack is vertically arranged on the top of the collecting frame, a pushing and connecting mechanism is arranged on the top of the collecting frame, and the collecting frame is connected through the pushing and connecting mechanism and the cutting mechanism. The deep-shallow layer transition water area sediment collecting device solves the problem that the coverage range of the collecting device is limited in the prior art, so that the collecting device needs to be collected multiple times in a certain sea area for comparison, and in the case that the water area is deep, a large amount of time is consumed for the collecting device to be retracted and extended, thereby affecting the collecting efficiency.

Description

Technical Field

[0001] This invention relates to the field of sediment collection devices, specifically a device for collecting sediments in transitional waters between deep and shallow layers. Background Technology

[0002] Sediments in the transitional zone between deep and shallow waters are substances deposited on the seabed in the transitional zone between the deep and shallow seas, using seawater as a medium. Marine sediments record information about the changes in the Earth's oceans and play an irreplaceable role in the study of ocean development history. Therefore, it is necessary to collect marine sediments and then analyze the information they contain.

[0003] The transitional waters between shallow and deep layers in the ocean are generally located at a depth of about 200 meters. However, in the current technology, when collecting marine sediments, it is usually necessary to retrieve them immediately after collection. Since the coverage of the collection device is limited, it is necessary to collect multiple samples in a certain sea area for comparison. In deeper waters, the deployment and retrieval of the collection device takes a lot of time, which affects the collection efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a device for collecting sediments in transitional waters between deep and shallow layers, thus solving the problems mentioned in the background.

[0005] This invention provides the following technical solution: a collection device for sediments in transitional waters between deep and shallow layers, comprising: a collection frame, the collection frame being generally U-shaped, a cutting mechanism slidably disposed on the inner wall of the collection frame, a storage box mechanism and a storage cover mechanism fixedly mounted on both sides of the collection frame via mounting rods, a cover being disposed on the inner wall of the storage cover mechanism, a vertically disposed collection rack at the top of the collection frame, a pushing and connecting mechanism at the top of the collection frame, the collection frame being linked with the cutting mechanism via the pushing and connecting mechanism, a digging support slidably disposed on the inner wall of the cutting mechanism, a sample storage box being disposed on the side of the digging support, and a digging mechanism at the top of the cutting mechanism, the top of the digging mechanism passing through the collection frame and moving with the up and down sliding of the cutting mechanism.

[0006] Preferably, the collection frame includes a positioning frame, a first motor is fixedly installed on the top of the positioning frame, a collection rod is fixedly installed on the output shaft of the first motor, the bottom end of the collection rod passes through the positioning frame and extends into the collection frame from the top, and the bottom half of the surface of the collection rod is provided with threads.

[0007] Preferably, the push-connection mechanism includes a bidirectional motor, which is fixedly installed on the top of the acquisition frame. The output shaft of the bidirectional motor is fixedly sleeved with a gear through an installed shaft. The outer edge of the gear meshes with a toothed plate. A strip-shaped slot is opened on the side of the acquisition frame. A fixing block integrally set on the side of the toothed plate near the bottom passes through the strip-shaped slot and is fixedly installed on the side of the cutting mechanism.

[0008] Preferably, the pushing and digging mechanism includes a main support frame, and an auxiliary support frame is slidably arranged on the inner wall of the main support frame. Both the main support frame and the auxiliary support frame are U-shaped. The two U-shaped legs of the main support frame are fixedly installed on the top of the lower cutting mechanism. The two U-shaped legs of the auxiliary support frame pass through the lower cutting mechanism and are rotatably connected to a guide rod. The bottom end of the guide rod is rotatably connected to the pushing and digging support. A second motor is fixedly installed on the top of the main support frame. A lead screw is fixedly installed on the output shaft of the second motor and threadedly connected to the main support frame and the auxiliary support frame through it.

[0009] Preferably, the pushing and digging support includes a support arm, the sides of which are respectively provided with a sliding groove and a locking groove. The top of the sliding groove completely passes through the support arm. There are two locking grooves, the positions of which correspond to the positions of the sample storage box. The surface of the support arm is respectively provided with a guide groove and a receiving groove. The position of the guide groove corresponds to the position of the sample storage box mechanism. The inner wall of the receiving groove is linked to the pushing and digging mechanism. The top and bottom of the support arm are provided with sliding strips, which are slidably connected to the inner wall of the cutting mechanism.

[0010] Preferably, one side of the slot penetrates the support arm and connects with the storage box mechanism, and the height of the slot through the support arm is half the height of its inner wall.

[0011] Preferably, the sample storage box includes a box body, with slots for inserting cards on both sides of the box body. A guide block is integrally provided on the side of the box body, and the top of the guide block is slidably connected to the inner wall of the groove on the surface of the push-dig support. A pull tube is integrally provided inside the box body, and the pull tube has an internal threaded hole for docking with the collection rack. A sealing groove is provided at the opening of the box body, and the inner wall of the sealing groove is slidably connected to the cover.

[0012] Preferably, the storage box mechanism includes a storage box compartment, a push plate is slidably disposed on the inner wall of the storage box compartment, a spring is disposed on one side of the push plate, the other side of the push plate overlaps with the sample box, the end of the spring away from the push plate is fixedly installed on the inner wall of the storage box compartment, and a card box mechanism is disposed on the side wall at the outlet of the storage box compartment.

[0013] Preferably, the card box mechanism includes a locking groove, and a round rod is fixedly provided on the inner wall of the locking groove. A paddle and a torsion spring are respectively sleeved on the surface of the round rod. The two ends of the torsion spring are respectively engaged with the side of the paddle and the inner wall of the locking groove. One end of the paddle passes through the storage box mechanism and corresponds to the groove on the surface of the push-digging support. A stop block is integrally provided on the side of the paddle, and the stop block is engaged at the end of the sample storage box.

[0014] Preferably, the cap storage mechanism includes a cap storage compartment, an ejector plate is slidably disposed on the inner wall of the cap storage compartment, a compression spring is installed on one side of the ejector plate, the other side of the ejector plate overlaps with the cap, and a snap hook is fixedly disposed at the outlet of the cap storage compartment, the snap hook engaging with the side of the cap.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The sediment collection device for the transitional waters between deep and shallow layers, by setting up a storage box mechanism and a storage cover mechanism, can put multiple sets of storage boxes at one time during the collection process. After using the cutting mechanism to dig the sediment into a set of storage boxes, the collection device can be dragged to other waters for collection again, eliminating the need to retrieve the sediment for each collection. This saves time spent on repeatedly deploying and retrieving the collection device during multiple collections, thus improving collection efficiency.

[0017] 2. This sediment collection device for transitional waters between deep and shallow layers, by incorporating a cutting mechanism, a pushing support, and a pushing mechanism, allows the collection device to be lowered to the seabed during operation. The bottom of the cutting mechanism directly contacts the sediment, and then the pushing mechanism, in conjunction with the weight of the collection device, presses the cutting mechanism into the sediment. The pushing support and pushing mechanism assist the cutting mechanism in scooping the sediment into a sample container, achieving rapid collection. Furthermore, after collection, the sample container can be sealed directly during its upward movement to prevent seawater from entering, thus improving the continuity of the collection process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the mining structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure at the linkage of the acquisition frame in this invention;

[0020] Figure 3 This is a schematic diagram of the disassembled structure of the acquisition frame of the present invention;

[0021] Figure 4 This is a schematic diagram of the side cross-section structure of the acquisition frame of the present invention;

[0022] Figure 5 This is a schematic diagram of the excavator support structure of the present invention;

[0023] Figure 6This is a schematic diagram of the sample storage box and sealing structure of the present invention;

[0024] Figure 7 This is a top view cross-sectional structural diagram of the storage box mechanism of the present invention;

[0025] Figure 8 This is a schematic cross-sectional view of the card holder mechanism of the present invention;

[0026] Figure 9 This is a top view cross-sectional structural diagram of the storage cover mechanism of the present invention.

[0027] In the diagram: 1. Acquisition frame; 2. Cutting mechanism; 3. Collection rack; 31. Positioning frame; 32. First motor; 33. Collection rod; 4. Storage box mechanism; 41. Storage box compartment; 42. Push plate; 43. Spring; 44. Card box mechanism; 441. Locking groove; 442. Round rod; 443. Paddle; 444. Torsion spring; 445. Stop block; 5. Pushing linkage mechanism; 51. Bidirectional motor; 52. Gear; 53. Toothed plate; 6. Pushing and digging support; 61. 62. Support arm; 63. Slide groove; 64. Positioning groove; 65. Guide groove; 7. Receiving groove; 71. Sample storage box; 72. Box body; 73. Card placement groove; 74. Guide block; 75. Pulling pipe body; 86. Sealing groove; 87. Pushing and digging mechanism; 81. Main support frame; 82. Secondary support frame; 83. Second motor; 84. Guide connecting rod; 9. Cover; 10. Cover storage mechanism; 101. Cover storage bin; 102. Pressing plate; 103. Compression spring; 104. Edge hook. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-9 A sediment collection device for transitional waters between deep and shallow layers includes: a collection frame 1, which is U-shaped; a cutting mechanism 2 that slides vertically down the inner wall of the collection frame 1; a storage box mechanism 4 and a cover mechanism 10 that are fixedly installed on both sides of the collection frame 1 by mounting rods; a cover 9 that is installed on the inner wall of the cover mechanism 10; a collection rack 3 that is vertically installed on the top of the collection frame 1; a pushing mechanism 5 that is installed on the top of the collection frame 1; the collection frame 1 being linked with the cutting mechanism 2 through the pushing mechanism 5; a digging support 6 that slides vertically down the inner wall of the cutting mechanism 2; a sample storage box 7 that is installed on the side of the digging support 6; and a digging mechanism 8 that is installed on the top of the cutting mechanism 2, the top of which passes through the collection frame 1 and moves with the vertical sliding of the cutting mechanism 2.

[0030] The collection rack 3 includes a positioning frame 31. A first motor 32 is fixedly installed on the top of the positioning frame 31. A collection rod 33 is fixedly installed on the output shaft of the first motor 32. The bottom end of the collection rod 33 passes through the positioning frame 31 and extends into the collection frame 1 from the top. The bottom half of the surface of the collection rod 33 is threaded. The first motor 32 is sealed with a waterproof structure. When the sample box 7 is moved upward after being excavated, the collection rod 33 is inserted into the reserved hole on the sample box 7. Then, the first motor 32 is started to pull the sample box 7 to the top of the collection rack 3 for storage. When the sample box 7 moves upward, the positioning frame 31 can apply a limiting force to its side, so that the sample box 7 moves upward stably with the rotation of the collection rod 33.

[0031] The push-connection mechanism 5 includes a bidirectional motor 51, which is fixedly installed on the top of the collection frame 1. The output shaft of the bidirectional motor 51 is fixedly sleeved with a gear 52 through an installed shaft. The outer edge of the gear 52 meshes with a toothed plate 53. A strip-shaped slot is opened on the side of the collection frame 1. A fixing block integrally set on the side of the toothed plate 53 near the bottom passes through the strip-shaped slot and is fixedly installed on the side of the cutting mechanism 2. By setting the push-connection mechanism 5, the cutting mechanism 2 can be detached from the inside of the collection frame 1 and extend downward. The sharp part at the bottom of the cutting mechanism 2 cuts through the sediment, so that the sample storage box 7 in the cutting mechanism 2 can collect the sediment.

[0032] The pushing and digging mechanism 8 includes a main support frame 81, and a secondary support frame 82 is slidably arranged on the inner wall of the main support frame 81. Both the main support frame 81 and the secondary support frame 82 are U-shaped. The two legs of the U-shape of the main support frame 81 are fixedly installed on the top of the cutting mechanism 2. The two legs of the U-shape of the secondary support frame 82 pass through the cutting mechanism 2 and are rotatably connected to the guide rod 84. The bottom end of the guide rod 84 is rotatably connected to the pushing and digging support 6. The top of the main support frame 81 is fixedly installed with a second motor 83. The output shaft of the second motor 83 is fixedly installed with a lead screw and threadedly connected to the main support frame 81 and the secondary support frame 82. After the cutting mechanism 2 cuts into the sediment, the pushing and digging mechanism 8 is started, pushing the pushing and digging support 6 and thus driving the sample storage box 7 to move laterally, scooping the sediment into the sample storage box 7.

[0033] The push-dig support 6 includes a support arm 61. The sides of the support arm 61 are respectively provided with a sliding groove 62 and a locking groove 63. The top of the sliding groove 62 completely passes through the support arm 61. There are two locking grooves 63, and the positions of the two locking grooves 63 correspond to the positions of the sample storage box 7. The surface of the support arm 61 is respectively provided with a guide groove 64 and a collection groove 65. The position of the guide groove 64 corresponds to the position of the storage box mechanism 4. The inner wall of the collection groove 65 is linked with the push-dig mechanism 8. The top and bottom of the support arm 61 are provided with sliding strips, which are slidably connected to the inner wall of the cutting mechanism 2. The push-dig support 6 is used to lock the sample storage box 7, so that the sample storage box 7 can collect sediment as the cutting mechanism 2 moves.

[0034] The slot 63 has a penetrating support arm 61 on one side and connects with the storage box mechanism 4. The height of the slot through the support arm 61 inside the slot 63 is half the height of its inner wall. The sample box 7 is stably locked by the pushing support 6. When the sample box 7 is just pushed out of the storage box mechanism 4, its side can directly reach the inside of the slot 63. When cutting down, the innermost corner of the slot 63 can lock the side of the sample box 7, so that it stays stably in the slot 63. When the sample box 7 starts to scoop in the sediment, it will slide into the slide groove 62 due to the thrust, so that it can continue to move upward after contacting the collection rack 3.

[0035] The sample storage box 7 includes a box body 71, with slots 72 on both sides of the box body 71. A guide block 73 is integrally provided on the side of the box body 71. The top of the guide block 73 is slidably connected to the inner wall of the groove on the surface of the excavation support 6. A pull tube body 74 is integrally provided inside the box body 71. The pull tube body 74 has an internal threaded hole that mates with the collection rack 3. A sealing groove 75 is provided at the opening of the box body 71. The inner wall of the sealing groove 75 is slidably connected to the cover 9. The sample storage box 7 is secured to the excavation support 6 by using the guide block 73. After collecting sediment as the excavation support 6 moves, the sample storage box 7 can be directly connected to the bottom of the cover 9 by using the sealing groove 75 during the upward movement, so that it can be sealed after detaching from the sediment, which is convenient for preserving the sediment.

[0036] The storage mechanism 4 includes a storage box 41, a push plate 42 that is slidably mounted on the inner wall of the storage box 41, a spring 43 that is mounted on one side of the push plate 42, and the other side of the push plate 42 that overlaps with the sample box 7. The end of the spring 43 that is away from the push plate 42 is fixedly mounted on the inner wall of the storage box 41. A carding mechanism 44 is mounted on the side wall at the outlet of the storage box 41. By setting the storage mechanism 4, the storage mechanism 4 is connected to the uppermost excavation support 6, thereby pushing the sample boxes 7 in the storage mechanism 4 into the slots on the excavation support 6 one by one, and collecting sediment in sequence.

[0037] The card box mechanism 44 includes a locking groove 441. A round rod 442 is fixedly installed on the inner wall of the locking groove 441. A lever 443 and a torsion spring 444 are respectively sleeved on the surface of the round rod 442. The two ends of the torsion spring 444 are respectively engaged with the side of the lever 443 and the inner wall of the locking groove 441. One end of the lever 443 passes through the storage box mechanism 4 and corresponds to the groove on the surface of the push-digging support 6. A stop block 445 is integrally provided on the side of the lever 443. The stop block 445 is engaged at the end of the sample storage box 7. Figure 8 As shown, by setting up the card box mechanism 44, and using the actuating paddle 443 on the pusher support 6 when the corresponding slot is in contact, only one sample box 7 in the storage box mechanism 4 can be pushed out at a time, which facilitates the collection of sediments from different water areas.

[0038] The storage cover mechanism 10 includes a storage cover chamber 101. A pressure plate 102 is slidably installed on the inner wall of the storage cover chamber 101. A compression spring 103 is installed on one side of the pressure plate 102. The other side of the pressure plate 102 overlaps with the cover 9. A snap hook 104 is fixedly installed at the outlet of the storage cover chamber 101. The snap hook 104 is engaged with the side of the cover 9. The storage cover mechanism 10 corresponds to the storage box mechanism 4. When the cutting mechanism 2 cuts down to collect samples, the cover 9 pushed out by the storage cover mechanism 10 is aligned with the upward-moving storage box 7, so that it directly seals the completed storage box 7, preventing seawater from scouring the sediment.

[0039] The working principle involves suspending the sampling device on the support frame used for sediment sampling. Multiple sample storage boxes 7 and caps 9 are then arranged in the storage box mechanism 4 and the cap mechanism 10, respectively. The device is then lowered into the seabed for sampling. First, the pushing mechanism 8 is activated to bring the side of the pushing support 6 into contact with the storage box mechanism 4, thus pushing the sample storage box 7 in the storage box mechanism 4 onto the pushing support 6. After the pushing mechanism 8 moves the sample storage box 7 a certain distance away, the pushing linkage mechanism 5 is activated, causing the cutting mechanism 2 to move the pushing support 6 and the sample storage box. 7. The cutting mechanism 2 sinks into the sediment at the bottom. After the cutting mechanism 2 sinks to the bottom, the pushing mechanism 8 is activated again to push the pushing support 6, so that the sediment is scooped into the sample box 7. When the sample box 7 reaches directly below the cover 9, the pushing mechanism 5 is activated to pull up the cutting mechanism 2. At this time, the cover 9 is inserted into the opening of the sample box 7. When the cutting mechanism 2 is pulled to the top of the collection frame 1, the collection rack 3 is just connected to the hole at the top of the sample box 7. Then, the collection rack 3 is used to pull the sample box 7 to the top of the collection rack 3.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for collecting sediments in transitional waters between shallow and deep layers, characterized in that, include: The collection frame (1) is shaped like a U-shape. The inner wall of the collection frame (1) is provided with a cutting mechanism (2) that slides up and down. Both sides of the collection frame (1) are fixedly installed with a storage box mechanism (4) and a storage cover mechanism (10) by mounting rods. The inner wall of the storage cover mechanism (10) is provided with a cover (9). The top of the collection frame (1) is provided with a vertically arranged collection rack (3). The top of the collection frame (1) is provided with a push-connection mechanism (5). The collection frame (1) is linked with the cutting mechanism (2) through the push-connection mechanism (5). The inner wall of the cutting mechanism (2) is provided with a push-dig support (6). The side of the push-dig support (6) is provided with a sample box (7). The top of the cutting mechanism (2) is provided with a push-dig mechanism (8). The top of the push-dig mechanism (8) passes through the collection frame (1) and moves with the up and down sliding of the cutting mechanism (2). By setting the push-connection mechanism (5), the cutting mechanism (2) is disengaged from the inside of the acquisition frame (1) and extends downward; Start the excavation mechanism (8) to push the excavation support (6), which in turn drives the sample box (7) to move laterally and scoop the sediment into the sample box (7); The push-dig support (6) includes a support arm (61). The side of the support arm (61) is provided with a sliding groove (62) and a locking groove (63). The top of the sliding groove (62) completely passes through the support arm (61). There are two locking grooves (63). The positions of the two locking grooves (63) correspond to the positions of the sample storage box (7). The surface of the support arm (61) is provided with a guide groove (64) and a receiving groove (65). The position of the guide groove (64) corresponds to the position of the storage box mechanism (4). The inner wall of the receiving groove (65) is linked with the push-dig mechanism (8). The top and bottom of the support arm (61) are provided with sliding strips and are slidably connected to the inner wall of the cutting mechanism (2). The sample storage box (7) includes a box body (71), and card slots (72) are provided on both sides of the box body (71). A guide block (73) is integrally provided on the side of the box body (71). The top of the guide block (73) is slidably connected to the inner wall of the groove on the surface of the push-dig support (6). A pull tube body (74) is integrally provided inside the box body (71). An internal threaded hole is provided inside the pull tube body (74) to connect with the collection rack (3). A sealing groove (75) is provided at the opening of the box body (71). The inner wall of the sealing groove (75) is slidably connected to the cover (9).

2. The sediment collection device for transitional waters between deep and shallow layers according to claim 1, characterized in that, The collection frame (3) includes a positioning frame (31). A first motor (32) is fixedly installed on the top of the positioning frame (31). A collection rod (33) is fixedly installed on the output shaft of the first motor (32). The bottom end of the collection rod (33) passes through the positioning frame (31) and extends into the collection frame (1) from the top. The bottom half of the surface of the collection rod (33) is provided with threads.

3. The sediment collection device for transitional waters between deep and shallow layers according to claim 1, characterized in that, The push-connection mechanism (5) includes a bidirectional motor (51), which is fixedly installed on the top of the acquisition frame (1). The output shaft of the bidirectional motor (51) is fixedly sleeved with a gear (52) through an installed shaft. The outer edge of the gear (52) meshes with a toothed plate (53). A strip-shaped slot is opened on the side of the acquisition frame (1). The fixing block of the toothed plate (53) near the bottom is integrally set and fixedly installed on the side of the cutting mechanism (2) through the strip-shaped slot.

4. The sediment collection device for transitional waters between deep and shallow layers according to claim 1, characterized in that, The pushing and digging mechanism (8) includes a main support frame (81), and a secondary support frame (82) is slidably arranged on the inner wall of the main support frame (81). Both the main support frame (81) and the secondary support frame (82) are U-shaped. The two legs of the U-shape of the main support frame (81) are fixedly installed on the top of the lower cutting mechanism (2). The two legs of the U-shape of the secondary support frame (82) pass through the lower cutting mechanism (2) and are rotatably connected to a guide rod (84). The bottom end of the guide rod (84) is rotatably connected to the pushing and digging support (6). A second motor (83) is fixedly installed on the top of the main support frame (81). A lead screw is fixedly installed on the output shaft of the second motor (83) and is threaded through the main support frame (81) and the secondary support frame (82).

5. The sediment collection device for transitional waters between deep and shallow layers according to claim 1, characterized in that, One side of the slot (63) penetrates the support arm (61) and connects with the storage box mechanism (4). The height of the slot opening of the slot (63) penetrating the support arm (61) is half the height of its inner wall.

6. The sediment collection device for transitional waters between deep and shallow layers according to claim 1, characterized in that, The storage box mechanism (4) includes a storage box compartment (41), a push plate (42) is slidably provided on the inner wall of the storage box compartment (41), a spring (43) is provided on one side of the push plate (42), the other side of the push plate (42) overlaps with the sample box (7), the end of the spring (43) away from the push plate (42) is fixedly installed on the inner wall of the storage box compartment (41), and a card box mechanism (44) is provided on the side wall at the outlet of the storage box compartment (41).

7. The sediment collection device for transitional waters between deep and shallow layers according to claim 6, characterized in that, The card box mechanism (44) includes a locking groove (441). A round rod (442) is fixedly provided on the inner wall of the locking groove (441). A paddle (443) and a torsion spring (444) are respectively sleeved on the surface of the round rod (442). The two ends of the torsion spring (444) are respectively engaged with the side of the paddle (443) and the inner wall of the locking groove (441). One end of the paddle (443) passes through the storage box mechanism (4) and corresponds to the groove on the surface of the push-dig support (6). A stop block (445) is integrally provided on the side of the paddle (443). The stop block (445) is engaged at the end of the sample storage box (7).

8. The sediment collection device for transitional waters between deep and shallow layers according to claim 1, characterized in that, The cover storage mechanism (10) includes a cover storage compartment (101), a pressure plate (102) is slidably provided on the inner wall of the cover storage compartment (101), a compression spring (103) is installed on one side of the pressure plate (102), the other side of the pressure plate (102) overlaps with the cover (9), and a snap hook (104) is fixedly provided at the outlet of the cover storage compartment (101), the snap hook (104) is engaged with the side of the cover (9).

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