A waterproof luggage

The waterproof suitcase is made of lightweight, high-strength plastic through one-piece injection molding. It combines radially arranged plastic channels and hollow channels to form a double waterproof structure, which solves the problems of traditional suitcases being heavy and having poor waterproof performance, and achieves both lightweighting and improved waterproof performance.

CN224671007UActive Publication Date: 2026-08-25GUANGZHOU SUNAMI IND CO LTD
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Patent Information

Application Number
CN202522057955.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2026-08-25
Estimated Expiration
2035-09-25

AI Technical Summary

Technical Problem

Existing camera equipment cases are not waterproof, and ordinary suitcases are prone to water damage, which can damage the items. In addition, traditional cases are too heavy.

Method used

This waterproof suitcase is made of lightweight, high-strength plastic through one-piece injection molding. It features radially arranged rubber and air channels inside, forming a double waterproof structure. Combined with a removable lining and a vent valve design, it ensures both airtightness and lightweight construction.

Benefits of technology

While achieving lightweight design, it effectively prevents water from entering through gaps, ensuring that the items inside the box remain dry, and enhancing the box's sealing and waterproof performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waterproof luggage, including first box body and second box body, first box body and second box body pivot connection, first box body with second box body is all integrative injection molding, first box body with second box body all is equipped with radial arrangement's glue containing groove and empty slot, the glue containing groove is built -in with sealant, when first box body and second box body cover, first box body's glue containing groove's sealant and second box body's empty slot compound occlusion, second box body's glue containing groove's sealant and first box body's empty slot compound occlusion, form staggered complementary structure, and the sidewall of empty slot will be contacted in radial direction with sealant, form certain radial constraint, and sealant will be extruded by first box body and second box body in axial direction, thereby with the contact and occlusion of the baffle of empty slot in axial direction, both achieve the weight reduction, and the watchcase prevents splashing, and also achieve the overall structure of preventing water immersion.
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Description

Technical Field

[0001] This utility model relates to the field of luggage technology, and in particular to a waterproof luggage. Background Technology

[0002] A suitcase, also known as a travel case or rolling case, is a box used to carry items when traveling.

[0003] For people who frequently travel between different locations, need to carry a lot of items, and ensure that their items do not get wet, such as photographers, water sports travelers, rain travelers, boat travelers, and field explorers, they use commercially available camera equipment cases or ordinary suitcases to carry their items.

[0004] While dedicated camera equipment cases are waterproof, they are extremely heavy, making them too burdensome. Ordinary suitcases can only block a small amount of rainwater splashed on their surface. If the entire suitcase is accidentally submerged in water or exposed to rain for a long time, water can easily enter the suitcase through gaps or zippers, causing the items inside to become soaked. Therefore, they cannot truly be waterproof. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight and waterproof suitcase to solve at least one of the problems mentioned in the background art.

[0006] The technical solution of this utility model is as follows: First, the water-proof structure is as follows: This utility model discloses a waterproof suitcase, comprising a first box body and a second box body, which are connected by a pivot. Both the first and second box bodies are integrally injection molded. Each of the first and second box bodies has radially arranged adhesive grooves and empty grooves. The adhesive grooves contain sealant. When the first and second box bodies are closed, the sealant in the adhesive grooves of the first box body engages with the empty grooves of the second box body, and the sealant in the adhesive grooves of the second box body engages with the empty grooves of the first box body, forming an interlocking and complementary structure. This interlocking includes radial engagement and axial engagement; thus, a double waterproof structure is formed. The first layer is located on the inner edge of the box body, and the second layer is located on the outer wall of the first layer.

[0007] It is worth noting that both the first and second housings are integrally injection molded, and lightweight, high-strength plastics (such as PP, ABS, PC, etc.) can be used as raw materials. Integral molding reduces the use of splicing and connecting parts, lowering redundant weight. The housings feature a hollow structure and reinforcing ribs, ensuring strength while reducing material usage. Compared to traditional multi-part splicing or metal housings, the overall structure is simpler and lighter. Furthermore, the cross-sectional width of the adhesive-containing groove is not less than the cross-sectional width of the empty groove, including both cases where the cross-sectional width of the adhesive-containing groove is greater than the cross-sectional width of the empty groove, and cases where the cross-sectional width of the adhesive-containing groove is equal to the cross-sectional width of the empty groove. Both cases enable composite interlocking between the first and second housings.

[0008] Secondly, the inner lining is designed with a removable and washable structure, as detailed below: It also includes a removable liner, which is located radially inside the interlaced complementary structure. The removable liner includes a frame strip and an inner liner bag. The frame strip has an inner groove, and the edge of the inner liner bag is located within the inner groove.

[0009] Furthermore, the outer surface of the interlaced complementary structure is provided with a mounting block, and the outer edge of the frame strip is provided with a slot, which is used to engage and connect the mounting block.

[0010] Then, since air will flow between the first and second boxes during the closing process, the air needs to be expelled during the closing process to achieve a sealed environment. The specific design is as follows: It also includes a vent valve, which is installed on the first housing or the second housing. The vent valve includes a valve cover, a sealing ring, a waterproof and breathable fabric and a valve body. The sealing ring is located above the waterproof and breathable fabric. The sealing ring and the waterproof and breathable fabric are disposed in the valve body. The valve cover is closed on the valve body and is located above the sealing ring.

[0011] Furthermore, the valve body is provided with a vent hole and a receiving hole, the valve cover is provided with a through hole and a pin, the pin is installed in the receiving hole, and the air between the through hole and the vent hole is interconnected.

[0012] Next, since both the first and second boxes are integrally injection molded, the pull rod and combination lock need to be externally mounted, as detailed below: It also includes a pull rod, and the outer surface of the first box or the second box is provided with a pull rod mounting groove, and the pull rod is disposed in the pull rod mounting groove.

[0013] It also includes a combination lock. The outer surfaces of both the first and second boxes are provided with lock grooves. One end of the combination lock is pivotally connected to the lock groove of the first box or the lock groove of the second box. When one end of the combination lock is pivotally connected to the lock groove of the second box, a fastening groove is provided in the lock groove of the first box, and the other end of the combination lock is fastened to the fastening groove. When one end of the combination lock is pivotally connected to the lock groove of the first box, a fastening groove is provided in the lock groove of the second box, and the other end of the combination lock is fastened to the fastening groove.

[0014] Finally, a structure was designed that can serve as a phone stand or tablet stand, as follows: The top of the first or second housing is provided with a shallow groove, which is located on the side of the pull rod. One side of the mobile phone / tablet abuts against the rib of the shallow groove, and the other side of the mobile phone / tablet rests on the pull rod, thus serving as a mobile phone stand or tablet stand.

[0015] In another embodiment, a handle is provided in the shallow groove, which serves only as a place for the handle.

[0016] Both the first and second boxes are equipped with rollers at their bottoms. Specifically, the first and second boxes are designed with roller mounting seats. The roller mounting seats are not connected to the inner cavity of the first or second box. The rollers are connected to the mounting seats by screws. Therefore, the installation of the rollers does not damage the structure of the box, ensuring that the box has no through holes and guaranteeing the sealing performance after the box is closed.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: the housing is integrally injection molded, reducing the overall weight and making the watch case water-resistant; a double waterproof structure with composite interlocking is provided between the first housing and the second housing. When the first housing and the second housing are closed, the sealant will contact the side wall of the slot in the radial direction, forming a certain radial constraint. The sealant will be squeezed by the first housing and the second housing in the axial direction, thereby contacting and interlocking with the edge of the slot in the axial direction; thus, it achieves both weight reduction and water-resistant watch case, as well as overall water-resistant structure. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a waterproof suitcase according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall cross-sectional structure of a waterproof suitcase according to the present invention; Figure 3 This is a cross-sectional structural diagram of a waterproof suitcase according to the present invention, omitting the removable inner lining and frame strips; Figure 4This is an exploded front view of the second body of a waterproof suitcase according to a utility model. Figure 5 This is a schematic diagram of the overall structure of a waterproof suitcase according to the present invention. Figure 2 ; Figure 6 This is an exploded view of the waterproof and breathable valve of a waterproof suitcase according to the present invention. Figure 7 This is an exploded structural diagram of the back of the second body of a waterproof suitcase according to a utility model. Figure 8 This is an exploded and enlarged schematic diagram of the combination lock, lock groove, and fastening groove of a waterproof suitcase according to this utility model. Figure 9 This is a schematic diagram showing the first and second compartments of a waterproof suitcase of this utility model in their open states. Reference numerals: 1. First housing; 101. Gap; 102. Locking groove; 103. Roller mounting seat; 2. Second housing; 21. Vent valve mounting position; 22. Air circulation hole; 23. Pull rod mounting groove; 24. Fastening groove; 25. Shallow groove; 26. Connecting hole; 3. Adhesive groove; 31. First adhesive groove; 311. Third protrusion; 32. Second adhesive groove; 321. Fourth protrusion; 4. Empty groove; 41. First empty groove; 411. First protrusion; 412. Second protrusion; 42. Second empty groove; 421. Fifth... 5. Protrusion, 6. Sealant, 7. Interlocking complementary structure, 8. Removable liner, 9. Frame strip, 10. Inner groove, 11. Bayonet, 12. Liner bag, 13. Mounting block, 14. Vent valve, 15. Valve cover, 16. Through hole, 17. Pin, 18. Sealing ring, 19. Waterproof and breathable fabric, 10. Valve body, 11. Vent hole, 12. Receiving hole, 10. Pull rod, 11. Combination lock, 12. Handle, 13. Roller, 14. Perforated retaining strip, d1. Width of adhesive groove section, d2. Width of empty groove section. Detailed Implementation

[0019] Example 1

[0020] Please refer to Figures 1-9This utility model provides a waterproof suitcase, including a first body 1 and a second body 2. The first body 1 and the second body 2 are connected by a pivot. Both the first body 1 and the second body 2 are integrally injection molded. The plastic shell is water-repellent and can be made of lightweight, high-strength plastics (such as PP, ABS, PC, etc.). The integral molding reduces the use of splicing and connecting parts, reducing redundant weight. It has a hollow structure and reinforcing ribs inside, which reduces material usage while ensuring strength. Compared with traditional multi-part splicing or metal suitcases, the overall structure is simpler and lighter. In addition, apart from the vent 941, neither the first body 1 nor the second body 2 has nail holes that penetrate the suitcase, ensuring waterproof sealing.

[0021] Both the first housing 1 and the second housing 2 are provided with radially arranged adhesive-containing grooves 3 and empty grooves 4. Specifically, refer to... Figure 3 The indicated first box 1 is the left box. Inside the first box 1, a gap 101, a first empty groove 41, and a first adhesive groove 31 are arranged radially along the inner wall. The gap 101 is the outermost annular groove. The first empty groove 41 includes a first protrusion 411 and a second protrusion 412. The inner wall of the first box 1 and the outer edge of the first protrusion 411 form the gap 101. The inner edge of the first protrusion 411 and the inner edge of the second protrusion 412 form the first empty groove 41. The first adhesive groove 31 includes a third protrusion 311. The outer edge of the second protrusion 412 and the inner edge of the third protrusion 311 form the first adhesive groove 31. The first adhesive groove 31 is arranged close to the outer edge of the second protrusion 412 (radially closer to the center of the box). The first adhesive groove 31 and the first empty groove 41 are radially adjacent and are arranged at different radial depths along the inner wall of the first box 1.

[0022] Reference Figure 3 The indicated second box 2 is the right box. Inside the second box 2, a second glue-containing groove 32 and a second empty groove 42 are arranged radially along the inner wall. The second glue-containing groove 32 is the outermost annular groove. The second glue-containing groove 32 includes a fourth protrusion 321. One inner edge of the second glue-containing groove 32 is coplanar with the inner wall of the second box 2, and the other inner edge is the inner surface of the fourth protrusion 321. The second empty groove 42 is arranged close to the outer edge of the fourth protrusion 321 (radially closer to the center of the box). The second empty groove 42 includes a fifth protrusion 421. The outer edge of the fourth protrusion 321 and the inner edge of the fifth protrusion 421 form the second empty groove 42. The second glue-containing groove 32 and the second empty groove 42 are radially adjacent and are arranged at different radial depths along the inner wall of the box.

[0023] Both the first adhesive container 31 and the second adhesive container 32 contain sealant 5. When the first housing 1 and the second housing 2 are closed, the sealant 5 in the first adhesive container 31 of the first housing 1 and the second empty slot 42 of the second housing 2 are combined and interlocked, and the sealant 5 in the adhesive container 3 of the second housing 2 and the empty slot 4 of the first housing 1 are combined and interlocked, forming an interlocking complementary structure 6. The interlocking of the interlocking complementary structure 6 is as follows: Figure 3 The diagram shows the interpenetrating state of "the fourth protrusion 321 and the fifth protrusion 421 extending into the first adhesive groove 31, and the first protrusion 411 and the second protrusion 412 extending into the second adhesive groove 32"; the complementarity of the interlaced complementary structure 6 is that both the first housing 1 and the second housing 2 engage with the first housing 1; the composite engagement includes radial engagement and axial engagement; regarding radial engagement: the first adhesive groove 31 and the second empty groove 42, and the second adhesive groove 32 and the first empty groove 41 are positioned radially opposite each other. When closed, the sealant 5 will contact the side wall of the empty groove 4 radially, that is, the sealant 5 in the second adhesive groove 32. The sealant 5 in the first adhesive groove 31 contacts the first protrusion 411 and the second protrusion 412 in the radial direction, and contacts the fourth protrusion 321 and the fifth protrusion 421 in the radial direction, forming a certain radial constraint. Regarding axial engagement: the sealant 5 in the first adhesive groove 31 of the first housing 1 and the sealant 5 in the second empty groove 42 of the second housing 2, and the sealant 5 in the first empty groove 41 of the first housing 1 and the second adhesive groove 32 of the second housing 2, are connected in the axial direction through the closing action of the housing. The sealant 5 is squeezed by the first housing 1 and the second housing 2 in the axial direction, thereby making contact and engagement with the protrusion of the empty groove 4 in the axial direction. That is, a double waterproof structure is formed, which can prevent water immersion. The first layer is located at the inner wall edge of the housing, that is, the first layer of waterproofing: the first empty groove 41 of the first housing 1 and the second adhesive groove 32 of the second housing 2. The second layer is located at the outer wall of the first layer, that is, the second layer of waterproofing: the first adhesive groove 31 of the first housing 1 and the second empty groove 42 of the second housing 2. Furthermore, judging from the structural drawings, the staggered complementary structure 6 can also simplify the structural design of the box, and adopts an arrangement structure that makes the total weight of the box relatively light.

[0024] Furthermore, the cross-sectional width d1 of the adhesive groove 3 is greater than the cross-sectional width d2 of the empty groove 4, which also indicates that the cross-sectional width of the sealant 5 is greater than the cross-sectional width of the empty groove 4. This ensures that the first protrusion 411, the second protrusion 321, and the corresponding sealant 5 are in radial and axial contact, and the fourth protrusion 321 and the fifth protrusion 421 are in radial and axial contact with the corresponding sealant 5, thereby achieving good sealing performance.

[0025] The design incorporates a removable and washable lining, as detailed below: Reference Figure 4It also includes a removable inner liner 7, which is located radially inside the interlaced complementary structure 6. Specifically, the removable inner liner 7 in the first box 1 is located on the outer edge of the third protrusion 311, and the removable inner liner 7 in the second box 2 is located on the outer edge of the fifth protrusion 421. The removable inner liner 7 includes a frame strip 71 and an inner liner bag 72. The frame strip 71 has an inner groove 711, and the edge of the inner liner bag 72 is located in the inner groove 711. Specifically, the edge of the inner liner bag 72 can be designed as a hard fabric, and the inner liner bag 72 can be fixed in the inner groove 711 by adhesive bonding; however, the edge of the inner liner bag 72 can also be designed to be detachably connected to the inner groove 711, which can be a buckle fixing method or a zipper fixing method.

[0026] The outer surface of the interlaced complementary structure 6 is provided with mounting blocks 8, that is, the outer edge surface of the third protrusion 311 and the outer edge surface of the fifth protrusion 421 are both provided with mounting blocks 8. The outer edge surface of the frame strip 71 is provided with a latch 712, which is engaged with the mounting blocks 8, thereby realizing the detachable cleaning of the lining. When the lining needs to be cleaned, the latch 712 can be directly disengaged from the mounting blocks 8, and the integrated structure of the frame strip 71 and the inner lining bag 72 can be removed.

[0027] Because air flows between the first chamber 1 and the second chamber 2 during the closing process, or in other words, gas is present inside the first chamber 1 or the second chamber 2 during the opening and closing process, the air needs to be expelled during the closing process to achieve a sealed environment. The specific design is as follows: Reference Figure 5 and Figure 6 It also includes a vent valve 9, which is installed on the second housing 2. The outer surface of the second housing 2 is provided with a vent valve mounting position 21. An air circulation hole 22 is provided in the vent valve mounting position. The vent valve 9 includes a valve cover 91, a sealing ring 92, a waterproof and breathable cloth 93, and a valve body 94. The sealing ring 92 is located above the waterproof and breathable cloth 93. The sealing ring 92 and the waterproof and breathable cloth 93 are located inside the valve body 94. The valve cover 91 covers the valve body 94 and is located above the sealing ring 92. The valve body 94 is provided with external threads, and a rubber ring is also provided between it and the vent valve 9 mounting position for threaded rotation and fixation. The key point is that the use of the waterproof and breathable cloth 93 can prevent liquid from entering the air circulation hole 22 through the vent valve 9 and entering the second housing 2.

[0028] The valve body 94 is provided with a vent hole 941 and a receiving hole 942. The valve cover 91 is provided with a through hole 911 and a pin 912. The pin 912 is installed in the receiving hole 942. That is, the valve cover 91 and the valve body 94 are fixed by an insertion and clamping method. The air between the through hole 911, the vent hole 941, and the air circulation hole 22 is interconnected.

[0029] The design of the vent valve 9 serves two purposes: firstly, to prevent liquid from entering the chamber through the air vent 22; and secondly, to better achieve the sealing function of the chamber, which means that the closing between the first chamber 1 and the second chamber 2 is smoother, and air is expelled from the chamber during this process.

[0030] Since both the first box 1 and the second box 2 are integrally injection molded, the pull rod 10 and the combination lock 11 need to be externally designed, as follows: It also includes a pull rod 10, and the outer surface of the second housing 2 is provided with a pull rod mounting groove 23, and the pull rod 10 is disposed in the pull rod mounting groove 23, as shown in the figure. Figure 7 The second housing 2 has a connection hole 25 that does not penetrate the housing. Screws are inserted into the tail end of the pull rod 10 and the connection hole 25. The extension end of the pull rod 10 is provided with a perforated stop strip 14. Screws are inserted into the perforated stop strip 14 and the connection hole 25, thereby fixing the pull rod 10 in the pull rod mounting groove 23.

[0031] Reference Figure 8 It also includes a combination lock 11. The outer surfaces of the first box 1 and the second box 2 are provided with lock grooves 102. One end of the combination lock 11 is pivotally connected to the lock groove 102 of the second box 2. The lock groove 102 of the first box 1 is provided with a fastening groove 24. The other end of the combination lock 11 is detachably fastened to the fastening groove 24.

[0032] Both the first box 1 and the second box 2 are equipped with rollers 13 at their bottoms. Specifically, the first box 1 and the second box 2 are designed with roller mounting seats 103. The roller mounting seats 103 are not connected to the inner cavity of the first box 1 or the second box 2. The rollers 13 are connected to the roller mounting seats 103 by screws. Therefore, the installation of the rollers 13 does not damage the structure of the box. The box has no through holes and can also ensure the sealing of the box after it is closed.

[0033] The top of the first box 1 or the second box 2 is provided with a shallow groove 25, the shallow groove 25 is located on the side of the pull rod 10, and a handle 12 is provided in the shallow groove 25. The shallow groove 25 is only used as a place for the handle 12.

[0034] When the handle is removed, one side of the phone / tablet rests against the rib of the shallow groove 25, and the other side of the phone / tablet rests against the pull rod 10, thus serving as a phone stand or tablet stand.

[0035] Example 2

[0036] The difference from Embodiment 1 is that a triple waterproof structure is designed. The first box 1 is provided with a first adhesive-containing groove, a second empty groove, and a third adhesive-containing groove arranged radially in sequence. The second box 2 is provided with a first empty groove, a second adhesive-containing groove, and a third empty groove arranged radially in sequence. The first adhesive-containing groove is aligned with the first empty groove, the second empty groove is aligned with the second adhesive-containing groove, and the third adhesive-containing groove is aligned with the third empty groove.

[0037] Example 3

[0038] It is also double waterproof, but the difference from Example 1 is that the first box 1 has a glue-containing groove 3 inside, while the second box 2 has an empty groove 4 inside.

[0039] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A waterproof suitcase, comprising a first body (1) and a second body (2), wherein the first body (1) and the second body (2) are connected by a pivot, characterized in that, The first box (1) and the second box (2) are both integrally injection molded. The first box (1) and the second box (2) are provided with radially arranged glue-containing grooves (3) and empty grooves (4). The glue-containing grooves (3) contain sealant (5). When the first box (1) and the second box (2) are closed, the sealant (5) in the glue-containing grooves (3) of the first box (1) and the empty grooves (4) of the second box (2) are compoundly interlocked, and the sealant (5) in the glue-containing grooves (3) of the second box (2) and the empty grooves (4) of the first box (1) are compoundly interlocked, forming an interlocking complementary structure (6).

2. The waterproof suitcase according to claim 1, characterized in that, The cross-sectional width of the adhesive tank (3) is not less than the cross-sectional width of the empty tank (4).

3. The waterproof suitcase according to claim 1, characterized in that, It also includes a removable liner (7), which is located on the radial inner side of the interlaced complementary structure (6). The removable liner (7) includes a frame strip (71) and an inner liner bag (72). The frame strip (71) is provided with an inner groove (711), and the edge of the inner liner bag (72) is located in the inner groove (711).

4. The waterproof suitcase according to claim 3, characterized in that, The outer surface of the interlaced complementary structure (6) is provided with a mounting block (8), and the outer edge of the frame strip (71) is provided with a slot (712), which is used to secure the mounting block (8).

5. The waterproof suitcase according to claim 4, characterized in that, It also includes a vent valve (9), which is installed on the first housing (1) or the second housing (2). The vent valve (9) includes a valve cover (91), a sealing ring (92), a waterproof and breathable cloth (93), and a valve body (94). The sealing ring (92) is located above the waterproof and breathable cloth (93). The sealing ring (92) and the waterproof and breathable cloth (93) are located inside the valve body (94). The valve cover (91) is closed on the valve body (94) and is located above the sealing ring (92).

6. The waterproof suitcase according to claim 5, characterized in that, The valve body (94) is provided with a vent hole (941) and a receiving hole (942). The valve cover (91) is provided with a through hole (911) and a pin (912). The pin (912) is installed in the receiving hole (942). The air between the through hole (911) and the vent hole (941) is interconnected.

7. The waterproof suitcase according to claim 6, characterized in that, It also includes a pull rod (10), and the outer surface of the first box (1) or the second box (2) is provided with a pull rod mounting groove (23), and the pull rod (10) is located in the pull rod mounting groove (23).

8. The waterproof suitcase according to claim 7, characterized in that, It also includes a combination lock (11). The outer surfaces of the first box (1) and the second box (2) are provided with lock grooves (102). One end of the combination lock (11) is connected to the lock groove (102) of the first box (1) or the lock groove (102) of the second box (2). When one end of the combination lock (11) is connected to the lock groove (102) of the second box (2), a fastening groove (24) is provided in the lock groove (102) of the first box (1), and the other end of the combination lock (11) is fastened to the fastening groove (24). When one end of the combination lock (11) is connected to the lock groove (102) of the first box (1), a fastening groove (24) is provided in the lock groove (102) of the second box (2), and the other end of the combination lock (11) is fastened to the fastening groove (24).

9. The waterproof suitcase according to claim 8, characterized in that, The top of the first box (1) or the second box (2) is provided with a shallow groove (25), which is located on the side of the pull rod (10).

10. The waterproof suitcase according to claim 9, characterized in that, The shallow groove (25) is provided with a handle (12), and the bottom of the first box (1) and the second box (2) are both provided with rollers (13).