Anti-cracking ABS draw-bar box
By installing internal support plates and external support plates at the four corners of the ABS trolley case, and using reinforcing rods and tension strips to form a support frame, the problem of corner cracking in the ABS trolley case was solved, and the support strength and stability of the case were improved.
Patent Information
- Application Number
- CN202520730538.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Existing ABS trolley cases are prone to cracking at corners, have poor safety and stability, and are not conducive to separate installation and reinforcement.
Internal support plates and external support plates are installed at the four corners of the ABS trolley case. Reinforcing rods and fixing heads are connected by fixing countersunk holes to form a split connection. Combined with tension strips and connectors, an internal support frame is formed to improve support strength and stability.
It effectively prevents corner cracking, improves the support strength and stability of ABS trolley cases, and ensures safety and durability.
Smart Images

Figure CN223860326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trolley cases, and more specifically, to a crack-resistant ABS trolley case. Background Technology
[0002] A rolling suitcase is a suitcase with a pull handle and wheels. It is widely used for travel and carrying clothes due to its convenience. Rolling suitcases are also divided into single-tube and double-tube pull handles, and the tubes of the pull handles are also divided into square tubes and round tubes to facilitate dragging while walking and greatly reduce the burden. Rolling suitcases can be carried by hand or dragged. Rolling suitcases are common daily necessities, especially for business trips or other leisure outings. Students living in dormitories also often use rolling suitcases.
[0003] The trolley case structure disclosed in the authorization announcement number CN 210611292 U uses ABS as the raw material for molding directly. It lacks internal support plates and external support plates for assembly and connection, which can easily cause cracks at the corners, resulting in poor safety and stability, affecting the strength of use, and also making it difficult to reinforce the corners when installing the parts separately. It needs to be improved. Utility Model Content
[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a crack-resistant ABS trolley case. By installing internal support plates and external support plates at the four corners of the case, it can be installed and positioned separately, which is beneficial for supporting and reinforcing the corners to avoid cracking and damage. Furthermore, by connecting the fixing head and the reinforcing rod through the fixing countersunk holes, it can be connected and fixed separately, which is convenient for installation and use, improves the strength and stability of the support, and ensures the effect of use.
[0005] To solve the above problems, the present invention adopts the following technical solution.
[0006] A crack-resistant ABS trolley case includes a case body comprising an ABS layer and a wear-resistant layer. The wear-resistant layer is fixedly covered on the outer surface of the ABS layer. An internal support plate is fixedly connected to the internal corner of the case body. A positioning head is fixedly connected to both sides of one end surface of the internal support plate. A rivet is fixedly connected to one side of the positioning head and is riveted to the inner bottom surface of the case body. An external support plate is fixedly connected to the outer surface of the case body and is fixedly attached to the outer surface of the wear-resistant layer. Connecting pieces are provided at both ends of the external support plate. The surface of the connecting pieces is provided with a fixing countersunk hole. The connecting pieces are fixedly attached to the outer surface of the case body. A reinforcing rod is fixedly embedded inside the fixing countersunk hole. A fixing head is fixedly connected to one end of the reinforcing rod and is fixedly connected to the outer surface of the case body.
[0007] Furthermore, one end of the fixing head is fixedly connected to an insert head, which is fixedly filled inside the fixing countersunk hole.
[0008] Furthermore, the fixing countersunk holes are evenly distributed on the surface of the connecting piece and symmetrically distributed on both sides of the outer support plate.
[0009] Furthermore, there are four internal support plates and four external support plates, which are respectively connected to the inner and outer sides of the four corners of the box. They can be connected and positioned separately by connecting the fixing head and the insert head through the reinforcing rod, thereby reinforcing and supporting the external support plate, improving the stability of the composite connection, ensuring the reinforcement effect, and improving the stability of use.
[0010] Furthermore, a fixing plate is fixedly connected to the middle position inside the box, and a tension strip is fixedly connected to the surface of the fixing plate.
[0011] Furthermore, one end of the tensioning strip is fixedly connected to a connector, and the connecting ring is fixedly connected to one side surface of the internal support plate.
[0012] Furthermore, the tensioning strip is fixedly attached to the inner bottom surface of the box and aligned with the diagonal position. The tensioning strip and the connector are connected by a fixing piece, which can be connected and fixed to the surface to provide tension and support at the four corners. It can also form an internal support frame to avoid local cracking and damage and improve safety and stability.
[0013] Compared with existing technologies, the advantages of this utility model are:
[0014] (1) This solution allows for separate installation and positioning by installing internal support plates and external support plates at the four corners of the box, which is beneficial for supporting and reinforcing the corners and preventing cracking and damage. Furthermore, the fixed head and reinforcing rod can be connected separately through the fixed countersunk holes, which is convenient for installation and use, improves the strength and stability of the support, and ensures the effectiveness of use.
[0015] (2) By connecting the fixing head and the inlay head with the reinforcing rod, the parts can be connected and positioned separately, thereby reinforcing and supporting the external support plate, improving the stability of the composite connection, ensuring the reinforcement effect, and improving the stability of use.
[0016] (3) By connecting the tension strip and the connector with the fixing plate, the connection and fixing can be made to fit the surface, thereby tightening and supporting the four corners, and forming an internal support skeleton to avoid local cracking and damage, and improve safety and stability. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2This is a schematic diagram of the planar structure of the present invention;
[0019] Figure 3 This is a partial cross-sectional view of the present invention;
[0020] Figure 4 This is a partial structural diagram of the housing of this utility model;
[0021] Figure 5 This is a schematic diagram of the external support plate of this utility model.
[0022] Explanation of the labels in the diagram:
[0023] 1. Housing, 11. ABS layer, 12. Wear-resistant layer, 13. Internal support plate, 14. Positioning head, 15. Rivet, 16. External support plate, 17. Connecting plate, 18. Fixing countersunk hole, 2. Reinforcing rod, 21. Fixing head, 22. Inserting head, 23. Fixing plate, 24. Tensioning strip, 25. Connecting head. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] Please see Figure 1 , Figure 3 and Figure 5 A crack-resistant ABS trolley case includes a case body 1, which comprises an ABS layer 11 and a wear-resistant layer 12. The wear-resistant layer 12 is fixedly covered on the outer surface of the ABS layer 11. An internal support plate 13 is fixedly connected to the inner corner of the case body 1. One end of the internal support plate 13 is fixedly connected to both sides of a positioning head 14. A rivet 15 is fixedly connected to one side of the positioning head 14 and is fixedly riveted to the inner bottom surface of the case body 1. An external support plate 16 is fixedly connected to the outer surface of the case body 1 and is fixedly attached to the wear-resistant layer 12. The outer surface of the grinding layer 12 has connecting pieces 17 at both ends of the external support plate 16. The surface of the connecting pieces 17 has fixing countersunk holes 18. The connecting pieces 17 are fixedly attached to the outer surface of the box body 1. A reinforcing rod 2 is fixedly embedded inside the fixing countersunk hole 18. One end of the reinforcing rod 21 is fixedly connected to a fixing head 21. The fixing head 21 is fixedly connected to the outer surface of the box body 1. By connecting the internal support piece 13 and the external support plate 16, the corner position can be reinforced and supported to avoid cracking and damage. It is convenient for separate reinforcement and molding, avoids interference, and has high adaptability.
[0026] Please see Figure 2 and Figure 4One end of the fixing head 21 is fixedly connected to an insert head 22, which is fixedly filled inside the fixing countersunk hole 18. The fixing countersunk hole 18 is evenly distributed on the surface of the connecting piece 17 and symmetrically distributed on both sides of the outer support plate 16. There are four internal support pieces 13 and four external support plates 16, which are respectively connected to the inner and outer sides of the four corners of the box 1. The fixing head and the insert head are connected by a reinforcing rod, which can be connected and positioned separately. This can strengthen and support the outer support plate, improve the stability of the composite connection, ensure the reinforcement effect, and improve the stability of use. During positioning, the external support plate 16 can be fixed to the outer corner of the box 1 first, which can be composite positioning or adhesive fixation. Then, the reinforcing rod 2 is inserted into the fixing countersunk hole 18 and attached to the surface of the wear-resistant layer 12 through the fixing head 21, which can be compositely fixed to the inside of the box 1. Then, the adhesive is injected into the fixing countersunk hole 18, and after solidification, the inlay head 22 is formed, which can combine and fix the reinforcing rod 2 and the connecting piece 17, thereby ensuring the strength of the composite positioning of the external support plate 16 and the box 1, preventing it from falling off, improving safety and stability, and facilitating protective use.
[0027] Please see Figure 1 and Figure 2 A fixing plate 23 is fixedly connected to the middle position inside the box 1. A tensioning strip 24 is fixedly connected to the surface of the fixing plate 23. A connector 25 is fixedly connected to one end of the tensioning strip 24. The connector 25 is fixedly connected to one side surface of the internal support plate 13. The tensioning strip 24 is fixedly attached to the bottom surface inside the box 1 and aligned with the diagonal position. The fixing plate connects the tensioning strip and the connector, which can be connected and fixed to the surface, thereby tightening and supporting the four corners and forming an internal support frame to avoid local cracking and damage, improve safety and stability. The fixing plate 23 and the tensioning strip 24 can be attached to the bottom surface of the box 1 for installation and fixation, forming a support frame, improving the compressive strength, and assisting in tightening to improve structural strength, which can prevent the box 1 from cracking and improve the safety of use.
[0028] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A crack-resistant ABS trolley case, comprising a case body (1), the case body (1) comprising an ABS layer (11) and a wear-resistant layer (12), the wear-resistant layer (12) being fixedly covered on the outer surface of the ABS layer (11), characterized in that: An internal support plate (13) is fixedly connected to the internal corner of the box (1). One end of the internal support plate (13) is fixedly connected to the positioning head (14) on both sides. A rivet (15) is fixedly connected to one side of the positioning head (14). The rivet (15) is fixedly riveted to the internal bottom surface of the box (1). An external support plate (16) is fixedly connected to the outer surface of the box (1). The external support plate (16) is fixedly attached to the outer surface of the wear-resistant layer (12). Connecting pieces (17) are provided at both ends of the external support plate (16). A fixing countersunk hole (18) is provided on the surface of the connecting piece (17). The connecting piece (17) is fixedly attached to the outer surface of the box (1). A reinforcing rod (2) is fixedly embedded inside the fixing countersunk hole (18). A fixing head (21) is fixedly connected to one end of the reinforcing rod (2). The fixing head (21) is fixedly connected to the outer surface of the box (1).
2. The crack-resistant ABS trolley case according to claim 1, characterized in that: One end of the fixing head (21) is fixedly connected to the insert head (22), and the insert head (22) is fixedly filled inside the fixing countersunk hole (18).
3. The crack-resistant ABS trolley case according to claim 1, characterized in that: The fixed countersunk holes (18) are evenly distributed on the surface of the connecting piece (17) and symmetrically distributed on both sides of the outer support plate (16).
4. The crack-resistant ABS trolley case according to claim 1, characterized in that: There are four internal support plates (13) and four external support plates (16), which are respectively connected to the inner and outer sides of the four corners of the box (1).
5. The crack-resistant ABS trolley case according to claim 1, characterized in that: A fixing plate (23) is fixedly connected to the middle position inside the box (1), and a tensioning strip (24) is fixedly connected to the surface of the fixing plate (23).
6. A crack-resistant ABS trolley case according to claim 5, characterized in that: One end of the tensioning strip (24) is fixedly connected to a connector (25), which is fixedly connected to one side surface of the internal support plate (13).
7. A crack-resistant ABS trolley case according to claim 5, characterized in that: The tensioning strip (24) is fixedly attached to the inner bottom surface of the box (1) and aligned with the diagonal position.
Citation Information
Patent Citations
High-compression-resistance non-deformation ABS draw-bar box
CN210611292U