Outdoor draw-bar box

Abstract

The utility model discloses an outdoor draw-bar box, which relates to the technical field of draw-bar boxes and comprises a box body, a draw bar is arranged on one side of the box body, two universal wheels are symmetrically arranged on the bottom surface of the box body close to one side of the draw bar at intervals, and the outdoor draw-bar box further comprises idler wheels, a supporting part, a connecting rod assembly and a limiting assembly. The two rolling wheels are rotationally connected with the connecting rod assembly. The connecting rod assembly is rotationally connected with one side of the box body; the supporting component used for supporting the bottom face of the box body is fixedly connected with the connecting rod assembly. The limiting assembly comprises a first limiting part and a second limiting part, and the first limiting part is clamped on the connecting rod assembly; the second limiting part is rotationally connected with one side of the box body, and the second limiting part is connected with the connecting rod assembly in a clamped mode. The outdoor draw-bar box disclosed by the utility model can overcome the defect that a user is very tired when dragging the draw-bar box on an uneven site.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley cases, in particular to an outdoor trolley case. Background Art

[0002] Figure 1 It is a schematic diagram of the three-dimensional structure of a trolley case in the prior art, wherein 1' is a case body, 2' is a universal wheel, and 3' is a trolley. The trolley case is a suitcase with a trolley 3' and universal wheels 2'. Four universal wheels 2' are arranged on the bottom surface of the case body 1', and a trolley 3' is arranged on one side of the case body 1'. The trolley case can be pushed or dragged by the trolley 3'.

[0003] When the user drags a trolley case, the entire case is tilted in the pulling direction. At this time, the force points become the two wheels and the pull rod in the pulling direction. The user must apply forward pulling force and upward lifting force at the same time. If the items in the suitcase are heavy, the lifting force the user needs to apply is also large, which causes a heavy burden on the user, especially when used in uneven outdoor venues, such as bumpy grass outdoors, mountain roads with a lot of gravel, and muddy ground. When the trolley case is dragged on these grounds, the trolley case vibrates frequently, and the required lifting force is greater, causing the user to be very tired.

[0004] Therefore, it is necessary to develop an outdoor suitcase for the above-mentioned defects. Utility Model Content

[0005] The utility model aims to provide an outdoor trolley case, which can solve the defect that a user will be very tired when dragging the trolley case on an uneven ground.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model discloses an outdoor trolley case, comprising a case body, a trolley on one side of the case body, two universal wheels symmetrically arranged at intervals on the bottom surface of the case body and close to the trolley, and also comprising rollers, a supporting component, a connecting rod assembly and a limit assembly;

[0008] The connecting rod assembly includes a cross rod, a first connecting rod and a second connecting rod, and the two rollers are rotatably connected to the two ends of the cross rod respectively; the two first connecting rods are symmetrically arranged at intervals, and the two second connecting rods are arranged one-to-one with the two first connecting rods. One end of the first connecting rod is fixedly connected to the cross rod, and the other end of the first connecting rod is hinged to the bottom end of the second connecting rod. The top end of the second connecting rod is rotatably connected to the side of the box body provided with the pull rod, and the two first connecting rods can pass between the two universal wheels;

[0009] The support component is fixedly connected to the cross bar, and the support component is in contact with a side of the bottom surface of the box body away from the pull rod;

[0010] The limiting assembly includes a first limiting component and a second limiting component. The first limiting component is rotatably mounted between the two second connecting rods. The first limiting component is provided with a first plug-in portion, which is clamped with the two first connecting rods. The second limiting component is rotatably connected to a side of the box body where the pull rod is provided. The second limiting component is provided with a second plug-in portion, which is clamped with the two second connecting rods.

[0011] Furthermore, two ears are symmetrically arranged at one side of the box body, a round rod is arranged between the two ears, the round rod passes through the two second connecting rods, and the round rod is rotatably connected to the second connecting rods.

[0012] Furthermore, the first limiting component includes a first steel wire rod and a first rotating shaft, the two first steel wire rods are symmetrically arranged with an "eight" interval, the ends of the two first steel wire rods away from each other are provided with a first bending section facing outward, and the first rotating shaft is fixedly connected to the ends of the two first steel wire rods close to each other; the inner side surfaces of the two second connecting rods are provided with a rotating shaft hole matching the end of the first rotating shaft, the rotating shaft hole is rotatably connected to the end of the first rotating shaft, and the inner side surfaces of the two first connecting rods are provided with a first plug hole for inserting the first bending section, and a plurality of first plug holes are provided, and the plurality of first plug holes are arranged at intervals along the length direction of the first connecting rod.

[0013] Furthermore, the second limiting component includes a second steel wire rod and a second rotating shaft, the two second steel wire rods are symmetrically arranged with an "eight" interval, the ends of the two second steel wire rods away from each other are provided with a second bending section facing outward, and the second rotating shaft is fixedly connected to the ends of the two second steel wire rods close to each other; a rotating shaft tube is integrally formed on one side of the box body, and the second rotating shaft is rotatably connected to the rotating shaft tube; second insertion holes for inserting the second bending section are provided on the inner side surfaces of the two second connecting rods, and a plurality of second insertion holes are provided, and the plurality of second insertion holes are arranged at intervals along the length direction of the second connecting rod.

[0014] Furthermore, the cross section of the supporting component is T-shaped, the vertical plate of the supporting component is fixedly connected to the cross bar, and the top surface of the cross plate of the supporting component is in contact with the bottom surface of the box body.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are:

[0016] The utility model discloses an outdoor trolley case, which can be adjusted to an inclined state when being dragged when used in an uneven field. The rollers and the universal wheels are supported on the ground, and an upward pulling force is not required. The user only needs to apply a forward pulling force, which greatly saves the user's physical strength and effectively reduces the user's fatigue. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a trolley case in the prior art;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 It is a rear view structural schematic diagram of the utility model;

[0021] Figure 4 It is a right view structural schematic diagram of the utility model;

[0022] Figure 5 This is a schematic diagram of the top view of the connecting rod assembly of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the working state of the utility model;

[0024] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point A in the middle.

[0025] Explanation of the reference numerals: 1. box body; 101. rotating shaft tube; 2. universal wheel; 3. pull rod; 4. roller; 5. supporting component; 6. cross bar; 7. first connecting rod; 701. first plug hole; 8. second connecting rod; 801. second plug hole; 9. first limiting component; 901. first steel wire rod; 902. first rotating shaft; 903. first bending section; 10. second limiting component; 1001. second steel wire rod; 1002. second rotating shaft; 1003. second bending section; 11. round rod; 1', box body; 2', universal wheel; 3', pull rod. DETAILED DESCRIPTION

[0026] The core of the utility model is to provide an outdoor trolley case, which can solve the defect that a user will be very tired when dragging the trolley case on an uneven ground.

[0027] 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.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "middle", 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.

[0029] In a specific embodiment of the present invention, Figures 2 to 7 As shown, it includes a box body 1, a pull rod 3 is provided on one side of the box body 1, two universal wheels 2 are symmetrically provided on the bottom surface of the box body 1 and on one side close to the pull rod 3, and also includes a roller 4, a supporting component 5, a connecting rod assembly and a limit assembly;

[0030] The connecting rod assembly includes a cross rod 6, a first connecting rod 7 and a second connecting rod 8, and the two rollers 4 are rotatably connected to the two ends of the cross rod 6 respectively; the two first connecting rods 7 are symmetrically arranged at intervals, and the two second connecting rods 8 are arranged one by one with the two first connecting rods 7. One end of the first connecting rod 7 is fixedly connected to the cross rod 6, and the other end of the first connecting rod 7 is hinged to the bottom end of the second connecting rod 8 by bolts and nuts. The top end of the second connecting rod 8 is rotatably connected to the side of the box body 1 provided with a pull rod 3, and the two first connecting rods 7 can pass between the two universal wheels 2, that is, the distance between the outer sides of the two first connecting rods 7 is less than or equal to the distance between the inner sides of the two universal wheels 2;

[0031] The support component 5 is fixedly connected to the cross bar 6, and the support component 5 contacts the side of the bottom surface of the box body 1 away from the pull rod 3; when the pull rod box is in an upright state, the support component 5 is used to support the bottom surface of the box body 1.

[0032] The limiting assembly includes a first limiting component 9 and a second limiting component 10. The first limiting component 9 is rotatably mounted between the two second connecting rods 8. The first limiting component 9 is provided with a first plug-in portion, which is clamped with the two first connecting rods 7. The second limiting component 10 is rotatably connected to a side of the box body 1 where a pull rod 3 is provided. The second limiting component 10 is provided with a second plug-in portion, which is clamped with the two second connecting rods 8.

[0033] Two ears are symmetrically arranged at one side of the box body 1, and a round rod 11 is arranged between the two ears. The round rod 11 passes through the two second connecting rods 8, and the round rod 11 is rotatably connected to the second connecting rod 8. Specifically, the round rod 11 can be a bolt as shown in the drawings, one end of the bolt passes through the two ears, and the end of the bolt has a thread and is threadedly connected to a nut.

[0034] The first position-limiting component 9 includes a first steel wire rod 901 and a first rotating shaft 902. The two first steel wire rods 901 are symmetrically arranged at intervals in an "eight" shape. The ends of the two first steel wire rods 901 that are far from each other are each provided with a first bending section 903 facing outwards. The first rotating shaft 902 is fixedly connected to the ends of the two first steel wire rods 901 that are close to each other. The inner sides of the two second connecting rods 8 are each provided with a rotating shaft hole that matches the end of the first rotating shaft 902. The rotating shaft hole is rotatably connected to the end of the first rotating shaft 902. The inner sides of the two first connecting rods 7 are each provided with a first plugging hole 701 for inserting the first bending section 903. There are a plurality of first plugging holes 701, and the plurality of first plugging holes 701 are arranged at intervals along the length direction of the first connecting rod 7. Specifically, the first plug-in portion is the first bending section 903.

[0035] The second position-limiting component 10 includes a second steel wire rod 1001 and a second rotating shaft 1002. The two second steel wire rods 1001 are symmetrically arranged at intervals of an eight-shaped pattern. The ends of the two second steel wire rods 1001 that are far away from each other are each provided with a second bending section 1003 facing outwards. The second rotating shaft 1002 is fixedly connected to the ends of the two second steel wire rods 1001 that are close to each other. A rotating shaft tube 101 is integrally formed on one side of the box body 1. The second rotating shaft 1002 is rotatably connected to the rotating shaft tube 101. The inner side surfaces of the two second connecting rods 8 are each provided with a second plug hole 801 for inserting the second bending section 1003. There are a plurality of second plug holes 801, and the plurality of second plug holes 801 are arranged at intervals along the length direction of the second connecting rod 8. Specifically, the second plug-in portion is the second bending section 1003.

[0036] The cross section of the supporting component 5 is T-shaped, the vertical plate of the supporting component 5 is fixedly connected to the cross bar 6 , and the top surface of the cross plate of the supporting component 5 is in contact with the bottom surface of the box body 1 .

[0037] The working principle of the outdoor trolley case of the utility model is as follows: when the trolley case is in an upright state, it is consistent with the trolley case in the prior art, that is, Figures 2 to 4 In the state shown, the roller 4 is located on the bottom surface of the box body 1, the supporting component 5 is in contact with the bottom surface of the box body 1, and the roller 4 and the universal wheel 2 are supported on the ground. At this time, the trolley case can be pushed to move.

[0038] Hold the first steel wire rod 901 and make the first bending section 903 come out of the first insertion hole 701, then the first connecting rod 7 can be rotated, hold the second steel wire rod 1001 and make the second bending section 1003 come out of the second insertion hole 801, then the second connecting rod 8 can be rotated. The second connecting rod 8 is rotated counterclockwise, and the second connecting rod 8 drives the first connecting rod 7 to move toward the side of the box body 1 where the pull rod 3 is provided, and the first connecting rod 7 drives the roller 4 to gradually move to the other side of the universal wheel 2. The user determines a comfortable tilt angle of the trolley case according to his or her height, that is, adjusts the angle between the first connecting rod 7 and the second connecting rod 8 and the angle between the second connecting rod 8 and the box body 1 to determine a comfortable tilt angle of the trolley case, and inserts the first bending section 903 and the second bending section 1003 into the appropriate first insertion hole 701 and the appropriate second insertion hole 801 respectively, so that a stable bracket is formed between the box body 1, the first connecting rod 7 and the second connecting rod 8, and the trolley case is supported on the ground by the roller 4 and the universal wheel 2.

[0039] In summary, when used on a flat surface, the utility model can be in an upright state and can be pushed for walking; when used on an uneven surface, the utility model can be adjusted to Figure 6 In the tilted state of dragging shown, the roller 4 and the universal wheel 2 are supported on the ground, and no upward pulling force is required. The user only needs to apply a forward pulling force, which greatly saves the user's physical strength.

[0040] 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, and the embodiments can be combined with 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.

[0041] The above embodiments 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. An outdoor trolley case, comprising a case body (1), a trolley (3) being provided on one side of the case body (1), two universal wheels (2) being symmetrically provided on the bottom surface of the case body (1) and close to the trolley (3), characterized in that: It also includes a roller (4), a supporting component (5), a connecting rod assembly and a limiting assembly; The connecting rod assembly comprises a cross rod (6), a first connecting rod (7) and a second connecting rod (8); the two rollers (4) are rotatably connected to the two ends of the cross rod (6) respectively; the two first connecting rods (7) are symmetrically arranged at intervals, the two second connecting rods (8) are arranged in a one-to-one correspondence with the two first connecting rods (7), one end of the first connecting rod (7) is fixedly connected to the cross rod (6), the other end of the first connecting rod (7) is hinged to the bottom end of the second connecting rod (8), the top end of the second connecting rod (8) is rotatably connected to a side of the box (1) provided with the pull rod (3), and the two first connecting rods (7) can pass between the two universal wheels (2); The support component (5) is fixedly connected to the cross bar (6), and the support component (5) is in contact with a side of the bottom surface of the box body (1) away from the pull rod (3); The limiting component comprises a first limiting component (9) and a second limiting component (10); the first limiting component (9) is rotatably mounted between the two second connecting rods (8); the first limiting component (9) is provided with a first plug-in portion, and the first plug-in portion is clamped with the two first connecting rods (7); the second limiting component (10) is rotatably connected to a side of the box body (1) provided with the pull rod (3); the second limiting component (10) is provided with a second plug-in portion, and the second plug-in portion is clamped with the two second connecting rods (8).

2. The outdoor suitcase according to claim 1, characterized in that: Two support ears are symmetrically arranged at intervals on one side of the box body (1), a round rod (11) is arranged between the two support ears, the round rod (11) passes through the two second connecting rods (8), and the round rod (11) is rotatably connected to the second connecting rods (8).

3. The outdoor suitcase according to claim 1, characterized in that: The first limiting component (9) comprises a first steel wire rod (901) and a first rotating shaft (902), the two first steel wire rods (901) are symmetrically arranged at intervals in an "eight" shape, the ends of the two first steel wire rods (901) that are away from each other are each provided with a first bending section (903) facing outward, and the first rotating shaft (902) is fixedly connected to the ends of the two first steel wire rods (901) that are close to each other; the inner side surfaces of the two second connecting rods (8) are each provided with a rotating shaft hole matching the end of the first rotating shaft (902), the rotating shaft hole is rotatably connected to the end of the first rotating shaft (902), the inner side surfaces of the two first connecting rods (7) are each provided with a first plugging hole (701) for inserting the first bending section (903), a plurality of the first plugging holes (701) are provided, and the plurality of the first plugging holes (701) are arranged at intervals along the length direction of the first connecting rod (7).

4. The outdoor suitcase according to claim 1, characterized in that: The second limiting component (10) comprises a second steel wire rod (1001) and a second rotating shaft (1002), the two second steel wire rods (1001) are symmetrically arranged in an "eight" shape, the ends of the two second steel wire rods (1001) that are away from each other are each provided with a second bending section (1003) facing outwards, and the second rotating shaft (1002) is fixedly connected to the ends of the two second steel wire rods (1001) that are close to each other; a rotating shaft tube (101) is integrally formed on one side of the box body (1), and the second rotating shaft (1002) is rotatably connected to the rotating shaft tube (101); the inner side surfaces of the two second connecting rods (8) are each provided with a second plugging hole (801) for inserting the second bending section (1003), and a plurality of second plugging holes (801) are provided, and the plurality of second plugging holes (801) are arranged at intervals along the length direction of the second connecting rod (8).

5. The outdoor suitcase according to claim 1, characterized in that: The cross section of the supporting component (5) is T-shaped, the vertical plate of the supporting component (5) is fixedly connected to the cross bar (6), and the top surface of the cross plate of the supporting component (5) is in contact with the bottom surface of the box body (1).

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