Draw-bar box with wear-resistant box body

Abstract

The utility model discloses a draw-bar box with a wear-resistant box body, and relates to the technical field of draw-bar boxes, the draw-bar box comprises a box body, a telescopic draw bar, universal wheels, a support assembly and a protection assembly, the protection assembly is convexly arranged on the outer surface of the box body and is used for preventing the outer surface of the box body from being worn; the supporting assembly wraps the edges and the convex corners of the outer surface of the box body and is used for protecting the corners of the box body. According to the draw-bar box with the wear-resistant box body, the box body is comprehensively and preliminarily protected through the protection assembly, the protection assembly is separated from an object possibly bumping against the surface of the box body through the supporting assembly, the box body is buffered in the using process, meanwhile, further protection can be achieved, and the service life of the draw-bar box is prolonged. Bumping and damage of the box body are effectively avoided, the service life is prolonged, and the problems that the surface, especially corners, of a draw-bar box in the prior art are easy to wear, and the attractiveness and the service life are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to a trolley case with a wear-resistant case body. Background Art

[0002] A trolley case refers to a suitcase with a trolley and wheels, which is widely used because of its convenience. At present, the trolley cases on the market are made of ABS or ABS+PC or pure PC, so when in use, the trolley cases are prone to friction with other objects or the ground, resulting in wear on the outer surface of the case, especially the corners of the trolley cases, which not only affect the appearance, but also are easy to be damaged, reducing the service life. The applicant has been engaged in the preparation and sales of luggage for a long time. Based on experience, it is found that during the transportation, transfer and use of the trolley cases, the corners of the trolley cases are most likely to be worn and damaged. Most of the wear-resistant trolley cases on the market only have wear-resistant strips added, so the wear resistance of the case is still not ideal.

[0003] Therefore, it is necessary to develop a trolley case with a wear-resistant case body in view of the above defects. Utility Model Content

[0004] The utility model aims to provide a trolley case with a wear-resistant case body, which can solve the problem in the prior art that the surface of the trolley case, especially the corners, are easily worn, affecting the appearance and service life.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a trolley case with a wear-resistant case body, comprising a case body, a telescopic trolley, a universal wheel, and further comprising:

[0007] A protection component, protruding from the outer surface of the box body, for preventing the outer surface of the box body from being worn;

[0008] The support assembly is covered on the edges and convex corners of the outer surface of the box body to protect the edges and corners of the box body.

[0009] Furthermore, the protection component includes:

[0010] An adsorption protective film is detachably coated on the outer surface of the box body, and the edge of the film is connected to the support assembly;

[0011] A first wear-resistant strip is arranged on the outer surface of the adsorption protective film;

[0012] The second wear-resistant strip is arranged on the outer surface of the adsorption protection film and is arranged crosswise with the first wear-resistant strip. A plurality of the first wear-resistant strip and the second wear-resistant strip are arranged at intervals.

[0013] Furthermore, the support assembly includes:

[0014] A support bar is detachably connected to the box body, the support bar is provided with a plurality of strips, and the strips are respectively wrapped around the edges of the outer surface of the box body, the cross section of the support bar is L-shaped, and the edge of the adsorption protective film is pressed tightly between the support bar and the box body;

[0015] The corner supporter is detachably connected to the box body. The corner supporter is provided in plurality and respectively arranged at the convex corner positions of the outer surface of the box body. The corner supporter is in contact with three surfaces of the outer surface of the box body at the same time.

[0016] Furthermore, the corner support comprises:

[0017] A first card seat, provided with a first corner groove and a plurality of first surface grooves;

[0018] A second card seat, one side of which is engaged with the first card seat and the other side of which is in contact with the box body, the second card seat is provided with a second angle groove and a second surface groove, the second angle groove is connected to the first angle groove, and the second surface groove is connected to the first surface groove and corresponds to each other;

[0019] Angle balls are disposed in the first angle groove and the second angle groove and are engaged with the first angle groove;

[0020] A surface ball, disposed in the first surface groove and the second surface groove and engaged with the first surface groove, the surface ball corresponding to the first surface groove one by one;

[0021] A plurality of brackets are provided, and are respectively in contact with the corner balls and the surface balls. The plurality of brackets are respectively arranged in the second corner groove and the second surface groove, and are all arc-shaped structures;

[0022] An elastic member, one end of which is fixedly connected to the second holder, and the other end of which is fixedly connected to the bracket, is used to provide a rebound force for the bracket, and the elastic member corresponds to the bracket one by one.

[0023] Furthermore, the box body comprises:

[0024] A first box body connected to the telescopic pull rod;

[0025] The second box has one end rotatably connected to the first box and the other end detachably connected to the first box via a buckle. The first box and the second box are both provided with the protection assembly, the universal wheel and the support assembly.

[0026] Furthermore, the first socket includes three fixing plates, the three fixing plates are respectively parallel to three surfaces of the outer surface of the box body, a plurality of the first surface grooves are arranged on the fixing plates, and the first angle groove is arranged at the position where the three fixing plates are connected.

[0027] Furthermore, the first card base is provided with a sinking hole and a card platform, the second card base is provided with a card hole adapted to the card platform, and the sinking hole, the card platform and the card hole are all coaxially arranged.

[0028] Furthermore, a limiting platform is provided in the clamping hole, and an elastic buckle engaged with the limiting platform is provided on the clamping platform.

[0029] Furthermore, the angle support is detachably connected to the box body via a fastener, and the fastener is disposed in the sinking hole and sequentially penetrates the first clamping seat and the second clamping seat to be connected to the box body.

[0030] Furthermore, an elastic layer is provided on the side of the support bar close to the box body, and anti-slip grooves are provided on the side of the elastic layer close to the box body; a plurality of vertical grooves are arranged side by side in the horizontal direction on the outer surface of the box body, and the contour of the cross section of any vertical groove is an arc shape.

[0031] Compared with the prior art, the beneficial technical effects of the utility model are:

[0032] The utility model discloses a trolley case with a wear-resistant case body. The case body can be comprehensively and initially protected by an adsorption protective film. The first wear-resistant strip and the second wear-resistant strip separate the adsorption protective film from objects that may collide with the surface of the case body. The case body can be buffered during use while further protection can be achieved, effectively avoiding damage to the case body due to collisions and extending the service life. The protection component is detachably connected to the case body. When the protection component is severely worn due to long years of use, the support strip can be removed, the adsorption protective film can be torn off and replaced with a new protection component, which can not only maintain the aesthetics of the case body, but also increase the service life of the case body.

[0033] In addition, after the support strips and corner supports are installed, their outer surfaces are higher than the outer surface of the box body by a certain distance, which protects the corners of the box body. At the same time, the outer surface of the box body can be separated from the contact surface when the box is placed flat or accidentally hit against the wall, thereby preventing the outer surface of the box body from being scratched and worn by the ground or wall during dragging and moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The utility model will be further described below in conjunction with the accompanying drawings.

[0035] Figure 1This is a schematic diagram of the main structure of the trolley case with a wear-resistant case body of the utility model;

[0036] Figure 2 This is a schematic diagram of the side structure of the trolley case with a wear-resistant case body of the utility model;

[0037] Figure 3 For along Figure 1 The cross-sectional structure diagram along the AA line;

[0038] Figure 4 For along Figure 1 The cross-sectional structure diagram of the middle BB line;

[0039] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at point C in the middle.

[0040] Explanation of the reference numerals in the accompanying drawings: 1. box body; 2. telescopic pull rod; 3. universal wheel; 4. support assembly; 5. protection assembly; 11. first box body; 12. second box body; 13. buckle; 14. vertical groove; 41. support strip; 42. corner supporter; 43. fastener; 51. first wear-resistant strip; 52. second wear-resistant strip; 421. first clamping seat; 422. second clamping seat; 423. corner ball; 424. surface ball; 425. bracket; 426. elastic member; 4211. first corner groove; 4212. first surface groove; 4213. sink hole; 4214. clamping table; 4221. clamping hole. DETAILED DESCRIPTION

[0041] The core of the utility model is to provide a trolley case with a wear-resistant case body, which can solve the problem in the prior art that the surface of the trolley case, especially the corners, are easily worn, affecting the appearance and service life.

[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0043] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0044] Please also read Figures 1 to 5 Now, a specific embodiment of a trolley case with a wear-resistant box body provided by the utility model is described. The trolley case with a wear-resistant box body includes a box body 1, a telescopic pull rod 2, and universal wheels 3, and also includes a support component 4 and a protection component 5, wherein the protection component 5 is protrudingly arranged on the outer surface of the box body 1 to avoid wear on the outer surface of the box body 1. The telescopic pull rod 2 is connected to the box body 1, and the box body 1 is provided with a pull-out groove. The telescopic pull rod 2 is arranged in the pull-out groove, and one end is fixedly connected to the box body 1. The telescopic pull rod 2 can be stretched or compressed and deformed by pulling or squeezing the other end. There are multiple universal wheels 3, which are fixedly installed at the bottom of the box body 1 for portable movement of the box body 1. The support component 4 covers the edges and convex corners on the outer surface of the box body 1 to protect the corners of the box body 1.

[0045] For ease of explanation, please also refer to Figure 1 and Figure 2 , take any point in space as the origin, take the setting direction of the box body 1 relative to the universal wheel 3 as the Z axis, take the setting direction of the first box body 11 in the box body 1 relative to the second box body 12 as the Y axis, and take the straight line direction perpendicular to both the Y axis and the Z axis as the X axis to establish a rectangular coordinate system, wherein the XY plane is a horizontal plane, the direction indicated on the horizontal plane is the horizontal direction, and the direction indicated by the Z axis is the vertical direction.

[0046] In a specific embodiment of the present utility model, the protection component 5 includes an adsorption protection film, a first wear-resistant strip 51, and a second wear-resistant strip 52, wherein the adsorption protection film is detachably covered on the outer surface of the box body 1, and the edge is connected to the support component 4. The first wear-resistant strip 51 is arranged on the outer surface of the adsorption protection film. The second wear-resistant strip 52 is arranged on the outer surface of the adsorption protection film and is arranged crosswise with the first wear-resistant strip 51. The first wear-resistant strip 51 and the second wear-resistant strip 52 are both arranged on the side of the adsorption protection film away from the box body 1, and a plurality of them are arranged at intervals.

[0047] In this embodiment, the adsorption protective film can be a plastic film or a hydrogel film with stickiness on one side. The first wear-resistant strip 51 and the second wear-resistant strip 52 are both made of transparent materials to ensure the aesthetics during use. Specifically, both can be strip structures made of rubber material, which can play a certain shock-absorbing role. The angle between the first wear-resistant strip 51 and the second wear-resistant strip 52 can be 30 degrees, 45 degrees or 90 degrees. The angle between the first wear-resistant strip 51 and the horizontal direction can be 30 degrees or 45 degrees.

[0048] In a specific embodiment of the present utility model, the support assembly 4 includes a support bar 41 and an angle supporter 42, wherein the support bar 41 is detachably connected to the box body 1, and the support bar 41 is provided with a plurality of support bars, which are respectively wrapped around the edges of the outer surface of the box body 1, and the cross section of the support bar 41 is L-shaped, and the edge of the adsorption protective film is pressed between the support bar 41 and the box body 1, and the support bar 41 is used to fix the adsorption protective film. The angle supporter 42 is detachably connected to the box body 1, and the angle supporter 42 is provided with a plurality of support bars, which are respectively arranged at the convex angles of the outer surface of the box body 1, and the angle supporter 42 is in contact with three surfaces of the outer surface of the box body 1 at the same time.

[0049] In this embodiment, an elastic layer is provided on the side of the support strip 41 close to the box body 1, and an anti-slip pattern is provided on the side of the elastic layer close to the box body 1; a plurality of vertical grooves 14 are arranged side by side in the horizontal direction on the outer surface of the box body 1, and the cross-sectional profile of any vertical groove 14 is in the shape of an arc. The arc-shaped structure has better wear resistance, and the width of the vertical groove 14 is greater than the spacing between adjacent vertical grooves 14, which can play a good supporting role, reduce the possibility of contact and wear between the vertical groove 14 and the external plane, further reduce the contact area between the outer surface of the box body 1 and the external plane, and maximize the aesthetics and extend the service life.

[0050] In a specific embodiment of the present utility model, the angle supporter 42 includes a first card seat 421, a second card seat 422, an angle ball 423, a surface ball 424, a bracket 425, and an elastic member 426, wherein the first card seat 421 is provided with a first angle groove 4211 and a plurality of first surface grooves 4212. One side of the second card seat 422 is engaged with the first card seat 421, and the other side is in contact with the box body 1. The second card seat 422 is provided with a second angle groove and a second surface groove, the second angle groove is connected with the first angle groove 4211, and the second surface groove is connected with the first surface groove 4212, and they correspond one to one. The angle ball 423 is arranged in the first angle groove 4211 and the second angle groove, and is engaged with the first angle groove 4211. The surface ball 424 is arranged in the first surface groove 4212 and the second surface groove, and is engaged with the first surface groove 4212, and the surface ball 424 corresponds one to one with the first surface groove 4212. The bracket 425 is provided with a plurality of brackets, and respectively abuts against the corner ball 423 and the surface ball 424. The plurality of brackets 425 are respectively arranged in the second corner groove and the second surface groove, and are all arc-shaped structures. One end of the elastic member 426 is fixedly connected to the second holder 422, and the other end is fixedly connected to the bracket 425, and is used to provide a rebound force for the bracket 425. The elastic member 426 corresponds to the bracket 425 one by one.

[0051] In this embodiment, the elastic member 426 may be a spring or a spring sheet or other elastic structure, and the bracket 425 may be an arc-shaped metal sheet or an arc-shaped rubber block. The bracket 425 and the elastic member 426 play a certain role in buffering and shock absorption. When the corner ball 423 and the surface ball 424 are impacted, a part of the impact may be buffered by the bracket 425 and the elastic member 426, thereby ensuring the service life of the corner ball 423 and the surface ball 424.

[0052] Compared with the prior art, the beneficial effects of this wear-resistant suitcase are as follows: the case body 1 can be comprehensively and initially protected by the adsorption protective film, and the first wear-resistant strip 51 and the second wear-resistant strip 52 separate the adsorption protective film from objects that may collide with the surface of the case body 1. While buffering the case body 1 during use, further protection can be achieved, effectively avoiding damage to the case body 1 by collision, and extending the service life. The protection component 5 is detachably connected to the case body 1. When the protection component 5 is severely worn due to long years of use, the support strip 41 can be removed, the adsorption protective film can be torn off, and a new protection component 5 can be replaced, which can not only maintain the aesthetics of the case body 1, but also increase the service life of the case body 1. After the support strip 41 and the corner support 42 are installed, their outer surfaces are higher than the outer surface of the box body 1 by a certain distance, which protects the corners of the box body 1 while separating the outer surface of the box body 1 from the contact surface when the box is placed flat or accidentally hit against a wall, thereby preventing the outer surface of the box body 1 from being scratched and worn by the ground or wall during dragging and moving.

[0053] In a specific embodiment of the present utility model, the box body 1 includes a first box body 11 and a second box body 12, wherein the first box body 11 is connected to the telescopic pull rod 2; one end of the second box body 12 is rotatably connected to the first box body 11, and the other end is detachably connected to the first box body 11 through a buckle 13, and the first box body 11 and the second box body 12 are both provided with a protection component 5, a universal wheel 3 and a support component 4. The buckle 13 can be a fastener combination with a lock, and this structure is a prior art. Here, as long as the performance and function of the buckle 13 can be achieved, it is within the scope of protection of this application document.

[0054] In a specific embodiment of the present invention, the first socket 421 includes three fixing plates, which are respectively parallel to three surfaces of the outer surface of the box body 1, and a plurality of first surface grooves 4212 are arranged on the fixing plates, and the first angle groove 4211 is arranged at the position where the three fixing plates are connected.

[0055] In this embodiment, a sinking hole 4213 and a clamping platform 4214 are provided on the first clamping seat 421, and a clamping hole 4221 adapted to the clamping platform 4214 is provided on the second clamping seat 422. The sinking hole 4213, the clamping platform 4214 and the clamping hole 4221 are all coaxially arranged. A limiting platform is provided in the clamping hole 4221, and an elastic buckle engaged with the limiting platform is provided on the clamping platform 4214. The elastic buckle can be a plurality of spring pieces arranged along the circumference of the clamping platform 4214, one end of the spring piece is fixed to the clamping platform 4214, and the other end is tilted toward the outside of the clamping platform 4214. After the clamping platform 4214 is inserted into the clamping hole 4221, the tilted end of the spring piece abuts against the limiting platform to achieve limiting. The elastic buckle and the limiting platform are both existing technologies, and as long as the relevant performance functions of the elastic buckle and the limiting platform can be achieved, they are all within the protection scope of this application.

[0056] In this embodiment, the angle support 42 is detachably connected to the box body 1 through a fastener 43, and the fastener 43 is disposed in the sink hole 4213 and sequentially passes through the first clamping seat 421 and the second clamping seat 422 to be connected to the box body 1. The fastener 43 may be a bolt, and the box body 1 is provided with a threaded hole adapted to the fastener 43.

[0057] When installing the corner supporter 42, first install the corner ball 423 and the surface ball 424 in the first corner groove 4211 and the first surface groove 4212 of the first holder 421 respectively; fix the second holder 422 fixed with the bracket 425 and the elastic member 426 to the first holder 421 through the limit platform and the elastic buckle; and then fix the corner supporter 42 to the box body 1 through the fastener 43.

[0058] When the wear-resistant trolley case of the utility model is pulled out in a flat state, the corner balls 423 and the surface balls 424 are in contact with the ground. During the pulling process, the two roll to assist in movement, thereby effectively reducing wear. When the trolley case is in an upright state, it will first hit and squeeze the corner balls 423 and the surface balls 424 when encountering an external plane. The smaller protrusions on the plane will still not contact the outer surface of the box body 1. If there are larger protrusions, the larger protrusions will first contact the first wear-resistant strips 51 and the second wear-resistant strips 52 on the plane between the vertical grooves 14. The first wear-resistant strips 51 and the second wear-resistant strips 52 are made of elastic materials, have certain deformation, and are not easy to be damaged. Even if the first wear-resistant strips 51 and the second wear-resistant strips 52 are damaged, only the protective component 5 can be replaced, which increases the service life of the trolley case and ensures the aesthetics of the trolley case.

[0059] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0060] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A trolley case with a wear-resistant case body, comprising a case body (1), a telescopic trolley (2) and universal wheels (3), characterized in that: Also includes: A protective component (5) protruding from the outer surface of the box body (1) and used to prevent the outer surface of the box body (1) from being worn; A support assembly (4) is wrapped around the edges and convex corners of the outer surface of the box body (1) to protect the edges and corners of the box body (1); The protection component (5) comprises: An adsorption protective film is detachably coated on the outer surface of the box body (1), and the edge of the film is connected to the support assembly (4); A first wear-resistant strip (51) is arranged on the outer surface of the adsorption protective film; The second wear-resistant strip (52) is arranged on the outer surface of the adsorption protection film and is arranged crosswise with the first wear-resistant strip (51). A plurality of the first wear-resistant strip (51) and the second wear-resistant strip (52) are arranged at intervals.

2. The wear-resistant suitcase according to claim 1, characterized in that: The support assembly (4) comprises: A support bar (41) is detachably connected to the box body (1), the support bar (41) is provided with a plurality of strips and is respectively wrapped around the edges of the outer surface of the box body (1), the cross section of the support bar (41) is L-shaped, and the edge of the adsorption protective film is pressed tightly between the support bar (41) and the box body (1); The corner support (42) is detachably connected to the box body (1), and the corner support (42) is provided in plurality and is respectively arranged at the positions of the convex angles on the outer surface of the box body (1), and the corner support (42) is in contact with three surfaces of the outer surface of the box body (1) at the same time.

3. The wear-resistant suitcase according to claim 2, characterized in that: The corner support (42) comprises: A first clamping seat (421) is provided with a first corner groove (4211) and a plurality of first surface grooves (4212); A second card seat (422), one side of which is engaged with the first card seat (421), and the other side of which is in contact with the box body (1), the second card seat (422) is provided with a second angle groove and a second surface groove, the second angle groove is connected to the first angle groove (4211), and the second surface groove is connected to the first surface groove (4212), and they correspond one to one; An angular ball (423) is disposed in the first angular groove (4211) and the second angular groove, and is engaged with the first angular groove (4211); A surface ball (424) is disposed in the first surface groove (4212) and the second surface groove and is engaged with the first surface groove (4212), and the surface ball (424) corresponds to the first surface groove (4212) one by one; The brackets (425) are provided in plurality and are respectively in contact with the corner balls (423) and the surface balls (424); the plurality of brackets (425) are respectively arranged in the second corner groove and the second surface groove, and are all arc-shaped structures; An elastic member (426) has one end fixedly connected to the second holder (422) and the other end fixedly connected to the bracket (425), and is used to provide a rebound force for the bracket (425). The elastic member (426) corresponds to the bracket (425) one to one.

4. The wear-resistant suitcase according to any one of claims 1 to 3, characterized in that: The box body (1) comprises: A first box body (11) connected to the telescopic pull rod (2); The second box (12) has one end rotatably connected to the first box (11) and the other end detachably connected to the first box (11) via a buckle (13); the first box (11) and the second box (12) are both provided with the protection assembly (5), the universal wheel (3) and the support assembly (4).

5. The wear-resistant suitcase according to claim 3, characterized in that: The first holder (421) comprises three fixing plates, the three fixing plates are respectively parallel to three surfaces of the outer surface of the box body (1), a plurality of the first surface grooves (4212) are arranged on the fixing plates, and the first angle groove (4211) is arranged at the position where the three fixing plates are connected.

6. The wear-resistant suitcase according to claim 3, characterized in that: The first card seat (421) is provided with a sinking hole (4213) and a card platform (4214), and the second card seat (422) is provided with a card hole (4221) adapted to the card platform (4214), and the sinking hole (4213), the card platform (4214) and the card hole (4221) are all coaxially arranged.

7. The wear-resistant suitcase according to claim 6, characterized in that: A limiting platform is provided in the clamping hole (4221), and an elastic buckle engaged with the limiting platform is provided on the clamping platform (4214).

8. The wear-resistant suitcase according to claim 7, characterized in that: The corner support (42) is detachably connected to the box body (1) via a fastener (43); the fastener (43) is disposed in the sinking hole (4213) and sequentially passes through the first clamping seat (421) and the second clamping seat (422) to be connected to the box body (1).

9. The wear-resistant suitcase according to claim 2, characterized in that: An elastic layer is provided on one side of the support strip (41) close to the box body (1), and an anti-slip pattern is provided on one side of the elastic layer close to the box body (1); a plurality of vertical grooves (14) are arranged side by side in a horizontal direction on the outer surface of the box body (1), and the cross-section profile of any of the vertical grooves (14) is in the shape of an arc.

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