Breathable carton with adjustable storage space

Abstract

The invention relates to the technical field of cartons, in particular to a breathable carton with an adjustable storage space, which comprises a carton cover plate, a carton body is arranged at the bottom of the carton cover plate, a bottom plate is fixedly connected to the outer wall of the carton body, an adjusting assembly is arranged at the top of the bottom plate, the adjusting assembly comprises a partition plate located at the top of the bottom plate, and a connecting column is fixedly connected to the bottom of the partition plate. According to the breathable carton with the adjustable storage space, a partition plate is arranged on the inner wall of the carton cover plate, a connecting column is fixedly connected to the bottom of the partition plate, a spring in a spring push plate pops up to drive a rotating shaft to move, the rotating shaft moves to push a first connecting rod to move, and the connecting column is fixed to the top of the rotating shaft; the connecting columns drive the top partition plate to slide on the sliding grooves, so that the internal space is divided by the baffles, the internal space of the carton is flexibly matched, the carton is different from a traditional carton with the fixed size, and a user can freely adjust the internal space through an external adjusting button according to the size and the number of objects.

Description

Technical Field

[0001] The present invention relates to the technical field of cartons, and in particular to a breathable carton with adjustable storage space. Background Art

[0002] As an indispensable part of modern logistics, cartons bear the important responsibilities of loading, protecting products and aesthetics. Cartons have different shapes and sizes, and different types of cartons can be used to load different items. However, most cartons now have fixed structures, and the capacity of the items that can be stored inside cannot be adjusted. If the capacity cannot be adjusted, when encountering small items or small quantities and there is no suitable filler, these items placed in the carton will move around, which will not only easily damage the interior of the carton, but also affect the items themselves, and also cause the carton to lack stability. Therefore, we propose a breathable carton with adjustable storage space. Summary of the invention

[0003] The present invention provides the following technical solution: a breathable carton with adjustable storage space, comprising a carton cover, a box body is provided at the bottom of the carton cover, a bottom plate is fixedly connected to the outer wall of the box body, and an adjustment component is provided on the top of the bottom plate; The adjusting component bag is a partition located on the top of the bottom plate, the bottom of the partition is fixedly connected to a connecting column, the bottom of the connecting column is provided with a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a connecting long rod, the outer wall of the connecting long rod is fixedly connected to a connecting block, the top of the connecting block is fixedly connected to a sliding block, and when the connecting long rod moves, the sliding block connected to the top drives the moving component to move accordingly, a gear is provided on the top of the moving component, and a breathable component is provided on the top of the gear, the outer wall of the rotating shaft is fixedly connected to a first connecting rod at one end close to the connecting long rod, and the outer wall of the first connecting rod is provided with a spring push plate.

[0004] As a preferred technical solution of the present invention, a sliding groove is provided on the surface of the bottom plate, and the partition plate is slidably connected to the sliding groove.

[0005] As a preferred technical solution of the present invention, a controller is provided on the outer wall of the spring push plate, and the controller is used to push the partition to move.

[0006] As a preferred technical solution of the present invention, the moving component includes a connecting plate located at the top of the sliding block, the inner wall of the connecting plate is provided with a sliding cavity, the outer wall of the sliding cavity is provided with a limiting protrusion, and the top of the connecting plate is fixedly connected to a first rack.

[0007] As a preferred technical solution of the present invention, the moving assembly is meshed with the top gear.

[0008] As a preferred technical solution of the present invention, the ventilation component includes a second rack located on the outer wall of the gear, the top of the second rack is fixedly connected to a second connecting rod, the top of the second connecting rod is fixedly connected to a hollow telescopic plate, the outer wall of the telescopic plate is provided with a limit plate, the limit plate and the telescopic plate are sleeved, and the outer wall of the carton cover is provided with blades.

[0009] As a preferred technical solution of the present invention, a ventilation hole is provided on the outer wall of the blade.

[0010] As a preferred technical solution of the present invention, the outer wall of the carton cover is rotatably connected with a buckle.

[0011] As a preferred technical solution of the present invention, the inner wall of the carton cover is provided with a limiting groove on the side close to the telescopic plate, and the protrusion connected to the outer wall of the telescopic plate drives the telescopic plate to move in the groove after being subjected to force, and the inner wall of the carton cover is provided with a sliding groove on the side close to the connecting plate, and the height of the connecting plate is equal to the height of the sliding groove.

[0012] As a preferred technical solution of the present invention, the sliding cavity is slidably connected to the sliding block, the size of the groove formed on the outer wall of the sliding block is equal to the size of the limiting protrusion, and a rubber strip is fixedly connected to the outer wall of the sliding block.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The breathable carton with adjustable storage space is provided with a partition on the inner wall of the carton cover. Since the bottom of the partition is fixedly connected with a connecting column, the spring in the spring push plate pops out to drive the rotating shaft to move, and the movement of the rotating shaft drives the first connecting rod to move. The top of the rotating shaft is fixed with a connecting column, and the connecting column drives the top partition to slide on the sliding groove, so that the internal space is divided by the baffle, so as to achieve flexible adaptation of the internal space of the carton. Different from traditional fixed-size cartons, users can freely adjust the internal space through external adjustment buttons according to the size and quantity of the items, ensuring that the adjustable carton fits the items tightly when placed, reducing damage caused by shaking and collision during transportation. For example, when sending glass products, the space can be reduced to strengthen fixation; when sending large but light and easily deformed items, the space can be increased to avoid squeezing and improve transportation safety.

[0014] 2. The breathable carton with adjustable storage space has a connecting block fixed on the outer wall of the connecting long rod, and a sliding block is provided on the top of the connecting block. When the rotating shaft drives the connecting long rod to move, it drives the sliding block to slide in the sliding cavity, and the sliding cavity effectively limits the sliding block, ensuring that the connecting long rod can adjust the number of open blades on the breathable component during movement, ensuring that the box is in a breathable state to prevent odor. When some odorous items are placed in the carton, opening the breathable blades can allow the odor to dissipate to avoid odor accumulation. At the same time, it is also beneficial to maintain the quality of the stored items. For example, when storing dry food, ventilation can avoid moisture accumulation and reduce the risk of mold and deterioration; for paper items, books, documents, etc., ventilation can prevent paper from getting damp, yellowing, and moldy.

[0015] 3. The breathable carton with adjustable storage space also has a second rack meshing with the gear when it rotates, and the second rack pulls the top telescopic plate, so that the telescopic plate is telescoped in the limit plate, so that the blades are driven to open and close during the movement of the partition. When the internal partition moves to the specified position, since the moving track of the partition is too long, the length of the blade is much smaller than the moving length of the partition. When the connecting long rod moves forward, only when the sliding block is inserted into the bottom sliding cavity can the first rack rotate the gear, and the gear can drive the blades to rotate, thereby avoiding the phenomenon that the blades are stuck and cannot be ventilated due to the second rack connected at the top driving the telescopic plate to telescope due to the continuous forward movement of the connecting long rod, thereby effectively improving work efficiency and extending the service life of internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a breathable paper box with adjustable storage space; Figure 2 It is a three-dimensional structural schematic diagram of a breathable paper box with adjustable storage space; Figure 3 It is a schematic diagram of the structure of an adjustment component of a breathable carton with adjustable storage space; Figure 4 It is a schematic diagram of the structure of an adjustment component of a breathable carton with adjustable storage space; Figure 5 The figure is a schematic diagram of the structure of a ventilation component of a ventilation carton with adjustable storage space; Figure 6 It is a schematic diagram of the structure of an adjustment component of a breathable carton with adjustable storage space; Figure 7 It is a schematic diagram of the structure of an adjustment component of a breathable carton with adjustable storage space; Figure 8 The present invention is a schematic diagram of the structure of an adjustment component of a breathable carton with adjustable storage space.

[0017] In the figure: 1. carton cover; 2. buckle; 3. box body; 4. controller; 5. vent; 6. adjustment component; 61. partition; 62. spring push plate; 63. shaft; 64. first connecting rod; 65. connecting column; 66. sliding groove; 67. connecting long rod; 68. connecting block; 69. sliding block; 7. moving component; 71. connecting plate; 72. sliding cavity; 73. first rack; 74. limiting protrusion; 8. gear; 9. breathable component; 91. blade; 92. telescopic plate; 93. second connecting rod; 94. second rack; 95. limiting plate; 10. bottom plate. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-8 A breathable carton with adjustable storage space, comprising a carton cover plate 1, a box body 3 is provided at the bottom of the carton cover plate 1, a bottom plate 10 is fixedly connected to the outer wall of the box body 3, and an adjustment component 6 is provided on the top of the bottom plate 10; The adjusting component 6 includes a partition 61 located at the top of the bottom plate 10, a connecting column 65 is fixedly connected to the bottom of the partition 61, a rotating shaft 63 is provided at the bottom of the connecting column 65, a connecting long rod 67 is fixedly connected to the outer wall of the rotating shaft 63, a connecting block 68 is fixedly connected to the outer wall of the connecting long rod 67, a sliding block 69 is fixedly connected to the top of the connecting block 68, a moving component 7 is slidably connected to the top of the sliding block 69, when the connecting long rod 67 moves, the moving component 7 is driven to move with it through the sliding block 69 connected at the top, a gear 8 is provided on the top of the moving component 7, a breathable component 9 is provided on the top of the gear 8, a first connecting rod 64 is fixedly connected to the outer wall of the rotating shaft 63 at one end close to the connecting long rod 67, and a spring push plate 62 is provided on the outer wall of the first connecting rod 64.

[0020] It should be noted that a partition 61 is provided on the inner wall of the carton cover 1. Since a connecting column 65 is fixedly connected to the bottom of the partition 61, the spring in the spring push plate 62 drives the rotating shaft 63 to move when it pops out. The movement of the rotating shaft 63 pushes the first connecting rod 64 to move. A connecting column 65 is fixed on the top of the rotating shaft 63. The connecting column 65 drives the top partition 61 to slide on the sliding groove 66, so that the internal space is divided by the baffle, so as to achieve flexible adaptation of the internal space of the carton. Different from traditional fixed-size cartons, users can freely adjust the internal space through external adjustment buttons according to the size and quantity of the items, ensuring that the adjustable carton fits the items tightly when placed, reducing damage caused by shaking and collision during transportation. For example, when sending glass products, the space can be reduced to strengthen fixation; when sending large but light and easily deformed items, the space can be increased to avoid squeezing and improve transportation safety.

[0021] See also Figure 4 A sliding groove 66 is provided on the surface of the bottom plate 10 , and the partition plate 61 is slidably connected to the sliding groove 66 .

[0022] It should be noted that when the spring pushes the rotating shaft 63 to move forward, the rotating shaft 63 drives the first connecting rod 64 fixedly connected to the outer wall to move forward at the same time. Since a connecting column 65 is provided on the top of the rotating shaft 63, a partition 61 is provided on the top of the connecting column 65. The connecting column 65 is clamped on the outer wall of the sliding groove 66, and the sliding groove 66 effectively limits it, so that the connecting column 65 drives the top partition 61 to move in the sliding groove 66, ensuring that the position of the sliding groove 66 is not easily offset when moving forward and backward, causing deviation from the track.

[0023] See also Figure 1 : A controller 4 is provided on the outer wall of the spring push plate 62, and the controller 4 is used to push the partition plate 61 to move.

[0024] It should be noted that the spring push plate 62 is connected to the controller 4. When the distance between the partitions 61 needs to be adjusted, it can be set by selecting the button on the outer wall of the controller 4, thereby improving the storage efficiency and ensuring that the internal space can be adjusted through the setting, which is convenient for the placement of items of different sizes, effectively improving the utilization efficiency of the storage box, and optimizing the user experience. In the home storage scenario, the user can change the space layout of the carton as needed, which is convenient for the classification and storage of items and makes the storage more orderly. When not in use, it is in a folded state and does not occupy the internal space.

[0025] See also Figure 6-7 The moving assembly 7 includes a connecting plate 71 located at the top of the sliding block 69 , a sliding cavity 72 is formed on the inner wall of the connecting plate 71 , a limiting protrusion 74 is formed on the outer wall of the sliding cavity 72 , and a first rack 73 is fixedly connected to the top of the connecting plate 71 .

[0026] It should be noted that a connecting block 68 is fixed to the outer wall of the connecting long rod 67, and a sliding block 69 is provided on the top of the connecting block 68. When the rotating shaft 63 drives the connecting long rod 67 to move, it drives the sliding block 69 to slide in the sliding cavity 72, and the sliding cavity 72 effectively limits the sliding block 69, ensuring that the connecting long rod 67 can adjust the number of blades opened on the ventilation component 9 during movement, ensuring that the box is in a ventilated state to prevent odor. When some odorous items are placed in the carton, opening the ventilation blades can allow the odor to dissipate and avoid the accumulation of odor. At the same time, it is also beneficial to maintain the quality of the stored items. For example, when storing food and dry goods, ventilation can avoid moisture accumulation and reduce the risk of mold and deterioration; for paper items, books, documents, etc., ventilation can prevent paper from getting damp, yellowing, and moldy.

[0027] Please refer to FIG. 7 : the moving component 7 is meshed with the top gear 8 .

[0028] It should be noted that, when the sliding block 69 drives the first rack 73 to slide on the inner wall of the carton cover 1, since the gear 8 is meshed with the first rack 73, the movement of the first rack 73 effectively drives the gear 8 to rotate.

[0029] See also Figure 8 The ventilation component 9 includes a second rack 94 located on the outer wall of the gear 8, the top of the second rack 94 is fixedly connected to a second connecting rod 93, the top of the second connecting rod 93 is fixedly connected to a hollow telescopic plate 92, the outer wall of the telescopic plate 92 is provided with a limiting plate 95, the limiting plate 95 and the telescopic plate 92 are sleeved, and the outer wall of the carton cover 1 is provided with a blade 91.

[0030] It should be noted that when the gear 8 rotates, since the second rack 94 is meshed with it, the second rack 94 pulls the top telescopic plate 92, and the telescopic plate 92 is telescoped in the limit plate 95, so that the blade 91 is driven to open and close during the movement of the partition 61. When the internal partition moves to the specified position, since the moving track of the partition 61 is too long, the length of the blade 91 is much smaller than the moving length of the partition 61. When the connecting long rod 67 moves forward, only when the sliding block 69 is engaged in the bottom sliding cavity 72, the first rack 73 is able to rotate the gear 8, and the gear 8 can drive the blade 91 to rotate, thereby avoiding the phenomenon that the blade 91 is stuck and cannot be ventilated due to the second rack 94 connected at the top driving the telescopic plate 92 to telescope due to the continuous forward movement of the connecting long rod 67, thereby effectively improving the work efficiency and extending the service life of the internal components.

[0031] See also Figure 1 : The outer wall of the blade 91 is provided with a ventilating opening 5.

[0032] It should be noted that a limit plate 95 is provided on the outer wall of the blade 91 to ensure that external air can enter after the blade 91 is opened, so that the items placed inside can be ventilated.

[0033] See also Figure 1 : The outer wall of the carton cover plate 1 is rotatably connected with a buckle 2.

[0034] It should be noted that when the upper cover needs to be fixed to the bottom box body, rotating the buckle 2 makes the storage box connection more stable and less likely to become loose.

[0035] See also Figure 5-8 : The inner wall of the carton cover 1 is provided with a limiting groove on the side close to the telescopic plate 92. The protrusion connected to the outer wall of the telescopic plate 92 drives the telescopic plate 92 to move in the groove after being subjected to force. The inner wall of the carton cover 1 is provided with a sliding groove on the side close to the connecting plate 71. The height of the connecting plate 71 is equal to the height of the sliding groove.

[0036] It should be noted that when the telescopic plate 92 is extended and retracted by tension, a limiting groove is provided on the outer wall of the telescopic plate 92 to ensure that the protrusion at the front end of the telescopic plate 92 synchronously drives the blades 91 to open and close when the telescopic plate 92 moves, and the air is sent into the box body. A sliding groove is provided on the outer wall of the connecting plate 71, and a protrusion is connected to the front end of the connecting plate 71. The sliding groove limits the protrusion to ensure that the connecting plate 71 can only move to the end of the sliding groove when sliding, and cannot continue to move forward or backward.

[0037] See also Figure 7 : The sliding cavity 72 is slidably connected to the sliding block 69, the size of the groove formed on the outer wall of the sliding block 69 is equal to the size of the limiting protrusion 74, and the outer wall of the sliding block 69 is fixedly connected with a rubber strip.

[0038] It should be noted that a rubber strip is provided on the outer wall of the sliding block 69, which effectively increases the friction when the sliding block 69 slides in the sliding cavity 72. The increased friction enables the sliding block 69 to drive the top first rack 73 to move forward when moving forward, and the first rack 73 will not be unable to move due to the small friction. Since the limiting groove on the outer wall of the sliding block 69 is equal in size to the limiting protrusion 74, the connecting block 68 drives the sliding block 69 to enter the limiting protrusion 74 with a more accurate position and fits more closely with the limiting protrusion 74, which assists the rubber strip in increasing the friction.

[0039] Working principle: when the device needs to be used, a partition 61 is provided on the inner wall of the carton cover 1, and a spring push plate 62 is connected to the controller 4. When the distance between the partitions 61 needs to be adjusted, it can be set by selecting the button on the outer wall of the controller 4. Since a connecting column 65 is fixedly connected to the bottom of the partition 61, the spring in the spring push plate 62 pops out and drives the rotating shaft 63 to move, and the movement of the rotating shaft 63 drives the first connecting rod 64 to move. A connecting column 65 is fixed on the top of the rotating shaft 63, and the connecting column 65 drives the top partition 61 to slide on the sliding groove 66, and the sliding groove 66 effectively limits it, so that the connecting column 65 drives the top partition 61 to move in the sliding groove 66, ensuring that the position of the sliding groove 66 is not easily offset when moving forward and backward, causing deviation from the track; the internal space is divided by the baffle, so as to achieve flexible adaptation of the internal space of the carton; A connecting block 68 is fixed to the outer wall of the connecting long rod 67, and a sliding block 69 is provided on the top of the connecting block 68. When the rotating shaft 63 drives the connecting long rod 67 to move, it drives the sliding block 69 to slide in the sliding cavity 72, and the sliding cavity 72 effectively limits the sliding block 69. The connecting long rod 67 can adjust the number of blades opened on the ventilation component 9 during movement to ensure that the box is in a ventilated state and prevent odor. When the sliding block 69 drives the first rack 73 to slide on the inner wall of the carton cover 1, the first rack 73 drives the gear 8 to rotate due to the meshing between the gear 8 and the first rack 73. When the gear 8 rotates, the second rack 94 meshes with it, and the second rack 94 pulls the top telescopic plate 92, so that the telescopic plate 92 is telescoped in the limiting plate 95. When the telescopic plate 92 is extended and retracted by the tension, the limiting groove is provided on the outer wall of the telescopic plate 92 to ensure that the telescopic plate 92 When moving, the convex block at the front end synchronously drives the blades 91 to open and close, and sends air into the box body. A sliding groove is provided on the outer wall of the connecting plate 71, and a convex block is connected to the front end of the connecting plate 71. The sliding groove limits the convex block to ensure that the connecting plate 71 can only move to the end of the sliding groove when sliding, and cannot continue to move forward or backward. A rubber strip is provided on the outer wall of the sliding block 69, which effectively increases the friction when the sliding block 69 slides in the sliding cavity 72. The increased friction makes the sliding block 69 drive the top first rack 73 to move forward when moving forward, preventing the first rack 73 from being unable to move due to small friction. Since the limiting groove on the outer wall of the sliding block 69 is equal in size to the limiting convex block 74, the position of the connecting block 68 driving the sliding block 69 to enter the limiting convex block 74 is more accurate, and it fits more closely with the limiting convex block 74, which assists the rubber strip to increase the friction. During the movement of the partition 61, the blade 91 is driven to open and close. When the internal partition moves to the specified position, since the moving track of the partition 61 is too long, the length of the blade 91 is smaller than the moving length of the partition 61. When the connecting long rod 67 moves forward, only when the sliding block 69 is inserted into the bottom sliding cavity 72, the first rack 73 can rotate the gear 8, and the gear 8 can drive the blade 91 to rotate, thereby avoiding the phenomenon that the blade 91 is stuck and cannot be ventilated due to the second rack 94 connected at the top driving the telescopic plate 92 to extend and retract due to the continuous forward movement of the connecting long rod 67, thereby effectively improving the working efficiency and extending the service life of the internal components.

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

Claims

1. A breathable carton with adjustable storage space, comprising a carton cover (1), characterized in that: A box body (3) is provided at the bottom of the carton cover plate (1); a bottom plate (10) is fixedly connected to the outer wall of the box body (3); and an adjustment component (6) is provided at the top of the bottom plate (10); The adjusting component (6) includes a partition (61) located at the top of the bottom plate (10); a connecting column (65) is fixedly connected to the bottom of the partition (61); a rotating shaft (63) is provided at the bottom of the connecting column (65); a connecting long rod (67) is fixedly connected to the outer wall of the rotating shaft (63); a connecting block (68) is fixedly connected to the outer wall of the connecting long rod (67); a sliding block (69) is fixedly connected to the top of the connecting block (68); a moving component (7) is slidably connected to the top of the sliding block (69); when the connecting long rod (67) moves, the moving component (7) is driven to move along with it through the sliding block (69) connected to the top; a gear (8) is provided at the top of the moving component (7); a ventilating component (9) is provided at the top of the gear (8); a first connecting rod (64) is fixedly connected to the outer wall of the rotating shaft (63) at one end close to the connecting long rod (67); a spring push plate (62) is provided on the outer wall of the first connecting rod (64).

2. The air-permeable paper box with adjustable storage space according to claim 1, characterized in that: A sliding groove (66) is provided on the surface of the bottom plate (10), and the partition plate (61) is slidably connected to the sliding groove (66).

3. The air-permeable paper box with adjustable storage space according to claim 1, characterized in that: The outer wall of the spring push plate (62) is provided with a controller (4), and the controller (4) is used to push the partition plate (61) to move.

4. The air-permeable paper box with adjustable storage space according to claim 1, characterized in that: The moving assembly (7) comprises a connecting plate (71) located at the top of the sliding block (69); a sliding cavity (72) is formed on the inner wall of the connecting plate (71); a limiting protrusion (74) is formed on the outer wall of the sliding cavity (72); and a first rack (73) is fixedly connected to the top of the connecting plate (71).

5. The air-permeable paper box with adjustable storage space according to claim 4, characterized in that: The moving assembly (7) is meshed with the top gear (8).

6. The air-permeable paper box with adjustable storage space according to claim 1, characterized in that: The ventilation component (9) comprises a second rack (94) located on the outer wall of the gear (8); the top of the second rack (94) is fixedly connected to a second connecting rod (93); the top of the second connecting rod (93) is fixedly connected to a hollow telescopic plate (92); the outer wall of the telescopic plate (92) is provided with a limiting plate (95); the limiting plate (95) is sleeved with the telescopic plate (92); and the outer wall of the carton cover (1) is provided with blades (91).

7. The air-permeable paper box with adjustable storage space according to claim 6, characterized in that: The outer wall of the blade (91) is provided with a ventilation hole (5).

8. The air-permeable paper box with adjustable storage space according to claim 1, characterized in that: The outer wall of the carton cover plate (1) is rotatably connected with a buckle (2).

9. The air-permeable paper box with adjustable storage space according to claim 6, characterized in that: The inner wall of the carton cover (1) is provided with a limiting groove on a side close to the telescopic plate (92); a projection connected to the outer wall of the telescopic plate (92) drives the telescopic plate (92) to move in the groove when a force is applied; the inner wall of the carton cover (1) is provided with a sliding groove on a side close to the connecting plate (71); the height of the connecting plate (71) is equal to the height of the sliding groove.

10. The air-permeable paper box with adjustable storage space according to claim 1, characterized in that: The sliding cavity (72) is slidably connected to the sliding block (69); the size of the groove formed on the outer wall of the sliding block (69) is equal to the size of the limiting protrusion (74); and a rubber strip is fixedly connected to the outer wall of the sliding block (69).

Images