Anti-deflection draw-bar box

Abstract

The utility model discloses an anti-deflection draw-bar box which comprises a first box body, a second box body, universal wheels, a fixed sliding rod, a locking mechanism, a lifting sliding rod and a control mechanism, and the two side walls of the first box body are provided with fixing grooves used for fixedly installing the fixed sliding rod; the locking mechanism for limiting the lifting sliding rod is fixed in the lifting sliding rod and is clamped with the fixed sliding rod; the lifting sliding rod comprises a lifting column, a horizontal rod, an extension frame and a holding frame; the control mechanism penetrates through the lifting sliding rod to be connected with the locking mechanism and controls the locking mechanism to move. The anti-deflection draw-bar box solves the technical problems that in the prior art, a draw bar is arranged on the back of the draw-bar box and is easy to deflect in the horizontal pushing process; the draw-bar box with the wide draw bar solves the problems that structural arrangement is not easy to grasp, acting force is not easy to apply, and use is inconvenient.

Description

Technical Field

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

[0002] In the prior art, the utility model patent with the publication number of CN221241924U discloses a wide trolley case with an increased accommodation space, which includes a trolley case body and a trolley rod assembly; the trolley rod assembly includes a handle, as well as two groups of outer tubes, inner tubes and fixing pieces; the handle is parallel to the upper surface of the trolley case body and perpendicular to the outer side surface of the trolley case body; the outer tubes are fixedly connected to the outer side surface of the trolley case body along the vertical direction; the upper end of the inner tube is connected to the lower surface of the end of the handle, and the lower end of the inner tube is telescopically matched with the upper end of the outer tube; the fixing piece is installed at the lower end of the outer tube. However, although the wide trolley case in the technical solution of this patent plays a certain role in preventing deflection during the horizontal pushing process, the handle on its trolley rod is at a position close to the middle of the trolley case body, resulting in the problem that when the user holds it, the legs are easily knocked against the case body. In order to avoid knocking, the user needs to hold the handle obliquely, resulting in the dispersion of the acting force on the handle, and the effect of preventing the trolley case from deflecting is not ideal and the use is not convenient. The applicant has been engaged in the work of making luggage for a long time and found that in the prior art, most of the trolley rods are arranged on the back of the trolley case. During the horizontal pushing process, it is necessary to push and pull the trolley rod on the back along the width direction of the trolley case. However, the trolley case has a certain thickness, and the back side of the trolley case is stressed unilaterally while the front part is in a free state, so the trolley case will deflect due to uneven stress and the operation is not easy.

[0003] Therefore, it is necessary to develop an anti-deflection trolley case to address the above-mentioned defects. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anti-deflection trolley case, which can solve the problems existing in the prior art that the trolley rod is arranged on the back of the trolley case and is prone to deflection during the horizontal pushing process; for the wide trolley rod trolley case, the structural setting is not easy to hold, not easy to apply force, and the use is not convenient.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model relates to an anti-deflection trolley case, which comprises a first box body, a second box body and universal wheels, and further comprises a fixed sliding rod, a locking mechanism, a lifting sliding rod and a control mechanism. Fixed slots for fixedly installing the fixed sliding rod are arranged on both side walls of the first box body; the locking mechanism for limiting the lifting sliding rod is fixed in the lifting sliding rod and is engaged with the fixed sliding rod; the lifting sliding rod comprises a lifting column, a horizontal rod, an extension frame and a holding frame. There are two holding frames, which are symmetrically installed on both sides of the control mechanism; one end of the extension frame is fixedly connected with the holding frame, and the other end is fixedly connected with the horizontal rod. The extension frame and the horizontal rod correspond to the holding frame one by one; the end of the horizontal rod far away from the extension frame is connected with the lifting column, and the lifting column is slidably installed in the fixed sliding rod; the control mechanism penetrates through the lifting sliding rod to be connected with the locking mechanism and controls the movement of the locking mechanism.

[0007] Furthermore, the horizontal rod is perpendicular to the lifting column, the extension frame is perpendicular to both the horizontal rod and the lifting column at the same time, and the holding frame is parallel to the horizontal rod; both the extension frame and the horizontal rod are parallel to the top of the first box body, and the universal wheels are arranged at the bottom of the first box body.

[0008] Furthermore, the control mechanism comprises a handle, a button, a control frame and a control spring. The handle is fixed between the two holding frames, and a pressing chute for slidably connecting with the button is arranged on the handle; a connecting column fixedly connected with the control frame is arranged at the bottom of the button; the control frame is vertically slidably installed in the handle and the two holding frames, and both ends are respectively connected with the locking mechanism through a commutation mechanism; the control spring is installed at the bottom of the control frame, and an installation groove for installing the control spring is arranged in the handle.

[0009] Furthermore, the commutation mechanism comprises a first commutation rod, a second commutation rod and a pressing rod. The middle of the first commutation rod is rotatably connected with the extension frame, and sliding columns are slidably connected to both ends of the first commutation rod. The sliding column on one side is hinged with the control frame, and the sliding column on the other side is hinged with the second commutation rod through a sliding block; the middle of the second commutation rod is rotatably connected with the horizontal rod, one end of the second commutation rod is slidably connected with the sliding block, and the other end is hinged with the pressing rod; the pressing rod is vertically slidably installed in the lifting column and is hinged with the locking mechanism.

[0010] Further, the locking mechanism includes a pressing block, a clamping post and a locking spring. The pressing block is slidably installed in the lifting column and is hinged to the pressing rod. A limiting groove for slidably connecting one end of the clamping post is formed in the pressing block, and the limiting groove is an inclined groove at a certain angle to the vertical direction; a clamping hole for engaging with the other end of the clamping post is formed in the fixed sliding rod; the locking spring is installed at the bottom of the pressing block and is fixed to the bottom of the lifting column.

[0011] Further, there are three lifting columns. Two of the lifting columns are respectively connected to two of the horizontal rods, and the pressing rods in the two lifting columns are both connected to the control frame through the first reversing rod and the second reversing rod; the other lifting column is connected to the handle, and the pressing rod in the other lifting column penetrates through the handle and the control spring and is fixed to the control frame.

[0012] Further, there are four lifting columns. Two of the lifting columns are respectively connected to two of the horizontal rods, and the pressing rods in the two lifting columns are both connected to the control frame through the first reversing rod and the second reversing rod; the other two lifting columns are respectively fixed to one ends of the two holding frames away from the handle, and the pressing rods in the other two lifting columns penetrate through the holding frames and are respectively fixed to both ends of the control frame.

[0013] Further, the clamping post is horizontally arranged, and the included angle between the limiting groove and the vertical direction is 20 degrees - 35 degrees.

[0014] Further, a plurality of the clamping holes are arranged side by side on the fixed sliding rod along the vertical direction; the plurality of clamping holes are symmetrically arranged on both sides of the lifting sliding rod.

[0015] Further, a handle is arranged on the top of the first box body, and the handle is arranged between the two extension frames.

[0016] Compared with the prior art, the beneficial technical effects of the present utility model are:

[0017] The utility model relates to an anti-deflection trolley case. Through the combined use of fixed sliding rods and lifting columns located on both sides of the first box body, during the horizontal pushing process, the side surface of the first box body moves forward, and the fixed sliding rods can also apply a horizontal forward force to the side surface of the first box body. The force application point is located on the side surface of the first box body. At the relatively central position of the overall first box body and the second box body, the pushing and pulling force received by the entire trolley case is relatively larger, and the generated deflection force is smaller and can be ignored, thereby effectively ensuring the stability of the trolley case during the traveling process. Through the combined setting of the extension frame, the gripping frame and the control mechanism are close to the back of the first box body, thereby avoiding the problem of bumping the legs when the user grips, and at the same time, a horizontal force can be better applied to the first box body through the lifting sliding rod, effectively preventing the deflection of the trolley case, and the user operation is more relaxed and convenient.

[0018] In addition, through the combined setting of the commutation mechanism and the locking mechanism, the lifting and locking of the lifting sliding rod can be realized through a simple mechanical structure, with a simple structure and convenient operation. Brief Description of the Drawings

[0019] The following further describes the present utility model with reference to the drawings.

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the anti-deflection trolley case in Embodiment 1 of the present utility model;

[0021] Figure 2 It is a side view structure schematic diagram of the anti-deflection trolley case in Embodiment 1 of the present utility model;

[0022] Figure 3 It is for Figure 2 The sectional view along the line A-A in;

[0023] Figure 4 It is for Figure 2 The sectional view along the line B-B in;

[0024] Figure 5 It is for Figure 4 The enlarged structure schematic diagram at C in;

[0025] Figure 6 It is a connection structure schematic diagram of the locking mechanism and the control mechanism part in Embodiment 3 of the present utility model;

[0026] Figure 7 It is for Figure 6 The enlarged structure schematic diagram at D in;

[0027] Figure 8 It is for Figure 6 The enlarged structure schematic diagram at E in;

[0028] Figure 9It is a front view structural schematic diagram of the anti-deflection trolley case in Embodiment 2 of the present utility model;

[0029] Figure 10 It is a front view structural schematic diagram of the anti-deflection trolley case in Embodiment 3 of the present utility model;

[0030] Figure 11 It is a side view structural schematic diagram of the anti-deflection trolley case in Embodiment 3 of the present utility model;

[0031] Figure 12 It is along Figure 11 The sectional view along the F-F line in

[0032] Explanation of reference numerals: 1, fixed sliding rod; 2, locking mechanism; 3, lifting sliding rod; 4, control mechanism; 5, reversing mechanism; 6, first box body; 7, second box body; 8, universal wheel; 9, handle; 11, card hole; 21, pressing block; 22, clamping column; 23, locking spring; 31, lifting column; 32, horizontal rod; 33, extension frame; 34, grasping frame; 41, handle; 42, button; 43, control frame; 44, control spring; 51, first reversing rod; 52, second reversing rod; 53, pressing rod; 54, sliding column; 55, sliding block; 211, limiting groove; 411, pressing chute. Detailed implementation manners

[0033] The core of the present utility model is to provide an anti-deflection trolley case, which can solve the problems existing in the prior art that the pull rod is arranged on the back of the trolley case and is prone to deflection during the horizontal pushing process; for the trolley case with a wide pull rod, the structural setting is not easy to grasp, it is not easy to apply force, and it is not convenient to use.

[0034] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0036] Embodiment 1

[0037] Please refer to togetherFigures 1 to 8 Now, a specific implementation manner of an anti-deflection trolley case provided by the present utility model will be described. This anti-deflection trolley case includes a first box body 6, a second box body 7 and universal wheels 8, and further includes a fixed slide rod 1, a locking mechanism 2, a lifting slide rod 3 and a control mechanism 4. Fixed slots for fixedly installing the fixed slide rod 1 are provided on both side walls of the first box body 6; the locking mechanism 2 for limiting the lifting slide rod 3 is fixed inside the lifting slide rod 3 and engages with the fixed slide rod 1; the lifting slide rod 3 includes a lifting column 31, a horizontal rod 32, an extension frame 33 and a gripping frame 34. There are two gripping frames 34, which are symmetrically installed on both sides of the control mechanism 4; one end of the extension frame 33 is fixedly connected to the gripping frame 34, and the other end is fixedly connected to the horizontal rod 32. The extension frame 33 and the horizontal rod 32 correspond to the gripping frame 34 one by one; the end of the horizontal rod 32 away from the extension frame 33 is connected to the lifting column 31, and the lifting column 31 is slidably installed inside the fixed slide rod 1; the control mechanism 4 passes through the lifting slide rod 3 and is connected to the locking mechanism 2 to control the movement of the locking mechanism 2.

[0038] For convenience of description, please refer to Figure 1 , taking any point in space as the origin, taking the setting direction of the control mechanism 4 relative to the first box body 6 as the Z axis, taking the setting direction of the second box body 7 relative to the first box body 6 as the X axis, and taking the straight line direction perpendicular to both the X axis and the Z axis as the Y axis, a rectangular coordinate system is established. Among them, the XY plane is the 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.

[0039] In this embodiment, the horizontal rod 32 is perpendicular to the lifting column 31, the extension frame 33 is perpendicular to both the horizontal rod 32 and the lifting column 31 at the same time, and the gripping frame 34 is parallel to the horizontal rod 32; both the extension frame 33 and the horizontal rod 32 are parallel to the top of the first box body 6, and the universal wheels 8 are arranged at the bottom of the first box body 6. A handle 9 is provided on the top of the first box body 6, and the handle 9 is arranged between the two extension frames 33.

[0040] In a specific implementation manner of the present utility model, the control mechanism 4 includes a grip 41, a button 42, a control frame 43 and a control spring 44. The grip 41 is fixed between the two gripping frames 34, and a pressing chute 411 for slidably connecting with the button 42 is provided on the grip 41; a connecting column fixedly connected to the control frame 43 is provided at the bottom of the button 42; the control frame 43 is vertically slidably installed inside the grip 41 and the two gripping frames 34, and both ends are respectively connected to the locking mechanism 2 through a reversing mechanism 5; the control spring 44 is installed at the bottom of the control frame 43, and an installation groove for installing the control spring 44 is provided inside the grip 41.

[0041] In a specific embodiment of the present utility model, the reversing mechanism 5 includes a first reversing rod 51, a second reversing rod 52 and a pressure rod 53. The middle of the first reversing rod 51 is rotatably connected to the extension frame 33, and both ends of the first reversing rod 51 are slidably connected with sliding columns 54. The sliding column 54 on one side is hinged to the control frame 43, and the sliding column 54 on the other side is hinged to the second reversing rod 52 through a sliding block 55; the middle of the second reversing rod 52 is rotatably connected to the horizontal rod 32, one end of the second reversing rod 52 is slidably connected to the sliding block 55, and the other end is hinged to the pressure rod 53; the pressure rod 53 is vertically slidably installed in the lifting column 31 and is hinged to the locking mechanism 2.

[0042] In this embodiment, two lifting columns 31 are provided, and the two lifting columns 31 are respectively connected to the two horizontal rods 32 . The pressure rods 53 in the two lifting columns 31 are connected to the control frame 43 through the first reversing rod 51 and the second reversing rod 52 .

[0043] In a specific embodiment of the present utility model, the locking mechanism 2 includes a pressure block 21, a clamping column 22 and a locking spring 23. The pressure block 21 is slidably installed in the lifting column 31 and is hinged to the pressure rod 53. The pressure block 21 is provided with a limiting groove 211 that is slidably connected to one end of the clamping column 22. The limiting groove 211 is an inclined groove at a certain angle to the vertical direction; the fixed slide bar 1 is provided with a clamping hole 11 that is engaged with the other end of the clamping column 22; the locking spring 23 is installed at the bottom of the pressure block 21 and is fixed to the bottom of the lifting column 31.

[0044] In this embodiment, the clamping column 22 is arranged horizontally, and the angle between the limiting groove 211 and the vertical direction is 20 degrees to 35 degrees. The fixed slide bar 1 is provided with a plurality of clamping holes 11 arranged side by side in the vertical direction; and the plurality of clamping holes 11 are symmetrically arranged on both sides of the lifting slide bar 3.

[0045] Compared with the prior art, the anti-deflection trolley case can push the side of the first box body 6 forward during the horizontal advancement process by using the fixed slide bar 1 and the lifting column 31 located on both sides of the first box body 6, and the fixed slide bar 1 can also apply a horizontal forward force to the side of the first box body 6. The force point is located on the side of the first box body 6, and the first box body 6 and the second box body 7 are relatively centered. The push-pull force on the entire trolley case is relatively larger, and the deflection force generated is smaller and can be ignored, thereby effectively ensuring the stability of the trolley case during the travel process. Through the coordinated setting of the extension frame 33, the grasping frame 34 and the control mechanism 4 are close to the back of the first box body 6, thereby avoiding the problem of the user's legs bumping when grasping. At the same time, the lifting slide bar 3 can better apply a horizontal force to the first box body 6, effectively preventing the deflection of the trolley case, and the user can operate more easily and conveniently. Through the coordinated setting of the reversing mechanism 5 and the locking mechanism 2, the lifting and locking of the lifting slide bar 3 can be realized through a simple mechanical structure, and the structure is simple and the operation is convenient.

[0046] When the anti-deflection trolley case of the utility model is in use: Grasp it on the handle 41 or the handle holder 34, and the trolley case can be pushed forward horizontally. When the height of the grasp needs to be adjusted, press the button 42. The button 42 drives the control frame 43 to move downward and squeeze the control spring 44. When the control frame 43 moves downward, one end of the two first reversing rods 51 is pressed downward through the sliding column 54, and the other end tilts up. The tilted end of the first reversing rod 51 drives one end of the second reversing rod 52 to tilt up through the sliding block 55, and the other end presses downward. The downward pressing end of the second reversing rod 52 drives the pressing rod 53 to move downward, further pushing the pressing block 21 downward and squeezing the locking spring 23. During the downward movement of the pressing block 21, the locking column 22 is driven by the limiting groove 211 to separate from the locking hole 11, completing the unlocking operation. At this time, the lifting slide rod 3 can be pulled upward or pressed downward. Release the button 42, and the control frame 43 pops up under the elastic force of the control spring 44. The pressing block 21 rises under the combined action of the pressing rod 53 and the locking spring 23, and pushes the locking column 22 out to engage with the locking hole 11 at another position, completing the locking operation.

[0047] Embodiment 2

[0048] Please refer to Figures 1 to 9 , as another implementation manner of the present invention, the structure of this anti-deflection trolley case is basically the same as the structure in the above embodiment. The difference is that there are three lifting columns 31. Two lifting columns 31 are respectively connected to two horizontal rods 32. The pressing rods 53 in the two lifting columns 31 are both connected to the control frame 43 through the first reversing rod 51 and the second reversing rod 52; another lifting column 31 is connected to the handle 41, and the pressing rod 53 in the other lifting column 31 penetrates through the handle 41 and the control spring 44 and is fixed to the control frame 43.

[0049] Embodiment 3

[0050] Please refer to Figures 1 to 12 , as another implementation manner of the present invention, the structure of this anti-deflection trolley case is basically the same as the structure in the above embodiment. The difference is that there are four lifting columns 31. Two lifting columns 31 are respectively connected to two horizontal rods 32. The pressing rods 53 in the two lifting columns 31 are both connected to the control frame 43 through the first reversing rod 51 and the second reversing rod 52; the other two lifting columns 31 are respectively fixed to one end of the two handle holders 34 away from the handle 41. The pressing rods 53 in the other two lifting columns 31 penetrate through the handle holders 34 and are respectively fixed to both ends of the control frame 43. The other two lifting columns 31 are located on the side walls of the back of the first box body 6. On the one hand, it can strengthen the handle holder 34, and on the other hand, it can have better supporting performance for the trolley case when pulling obliquely, and the use effect is better. Here, as long as the relevant performance functions of the above lifting slide rod 3, control mechanism 4 and reversing mechanism 5 can be realized, they are within the protection scope of this application document.

[0051] In this specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method section.

[0052] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An anti-deflection trolley case, comprising a first case body (6), a second case body (7) and universal wheels (8), characterized in that: The invention also comprises a fixed slide bar (1), a locking mechanism (2), a lifting slide bar (3) and a control mechanism (4); both side walls of the first box body (6) are provided with fixing grooves for fixing and installing the fixed slide bar (1); the locking mechanism (2) for limiting the position of the lifting slide bar (3) is fixed in the lifting slide bar (3) and is engaged with the fixed slide bar (1); the lifting slide bar (3) comprises a lifting column (31), a horizontal rod (32), an extension frame (33) and a grasping frame (34); the grasping frame (34) is provided with two and is symmetrically installed on the control mechanism ( 4); one end of the extension frame (33) is fixedly connected to the grasping frame (34), and the other end is fixedly connected to the horizontal rod (32), and the extension frame (33) and the horizontal rod (32) are in one-to-one correspondence with the grasping frame (34); one end of the horizontal rod (32) away from the extension frame (33) is connected to the lifting column (31), and the lifting column (31) is slidably installed in the fixed slide bar (1); the control mechanism (4) passes through the lifting slide bar (3) and is connected to the locking mechanism (2) and controls the movement of the locking mechanism (2).

2. The anti-deflection trolley case according to claim 1, characterized in that: The horizontal rod (32) is perpendicular to the lifting column (31), the extension frame (33) is perpendicular to both the horizontal rod (32) and the lifting column (31), and the grip frame (34) is parallel to the horizontal rod (32); the extension frame (33) and the horizontal rod (32) are both parallel to the top of the first box (6), and the universal wheel (8) is arranged at the bottom of the first box (6).

3. The anti-deflection trolley case according to claim 2, characterized in that: The control mechanism (4) comprises a handle (41), a button (42), a control frame (43) and a control spring (44); the handle (41) is fixed between the two control frames (34); a pressing slide groove (411) is provided on the handle (41) and is slidably connected to the button (42); a connecting column is provided at the bottom of the button (42) and is fixedly connected to the control frame (43); the control frame (43) is vertically slidably installed in the handle (41) and the two control frames (34), and its two ends are respectively connected to the locking mechanism (2) through a reversing mechanism (5); the control spring (44) is installed at the bottom of the control frame (43), and a mounting groove for mounting the control spring (44) is provided in the handle (41).

4. The anti-deflection trolley case according to claim 3, characterized in that: The reversing mechanism (5) comprises a first reversing rod (51), a second reversing rod (52) and a pressing rod (53); the middle of the first reversing rod (51) is rotatably connected to the extension frame (33); both ends of the first reversing rod (51) are slidably connected with sliding columns (54); the sliding column (54) on one side is hinged to the control frame (43); the sliding column (54) on the other side is hinged to the second reversing rod (52) through a sliding block (55); the middle of the second reversing rod (52) is rotatably connected to the horizontal rod (32); one end of the second reversing rod (52) is slidably connected to the sliding block (55), and the other end is hinged to the pressing rod (53); the pressing rod (53) is vertically slidably installed in the lifting column (31) and is hinged to the locking mechanism (2).

5. The anti-deflection trolley case according to claim 4, characterized in that: The locking mechanism (2) comprises a pressing block (21), a clamping column (22) and a locking spring (23); the pressing block (21) is slidably installed in the lifting column (31) and is hinged to the pressing rod (53); the pressing block (21) is provided with a limiting groove (211) slidably connected to one end of the clamping column (22); the limiting groove (211) is an inclined groove with a certain angle to the vertical direction; the fixed sliding rod (1) is provided with a clamping hole (11) clamped with the other end of the clamping column (22); the locking spring (23) is installed at the bottom of the pressing block (21) and is fixed to the bottom of the lifting column (31).

6. The anti-deflection trolley case according to claim 5, characterized in that: The lifting columns (31) are provided with three, two of which are connected to the two horizontal rods (32) respectively, and the pressure rods (53) in the two lifting columns (31) are connected to the control frame (43) through the first reversing rod (51) and the second reversing rod (52); another lifting column (31) is connected to the handle (41), and the pressure rod (53) in the other lifting column (31) penetrates the handle (41) and the control spring (44) and is fixed to the control frame (43).

7. The anti-deflection trolley case according to claim 5, characterized in that: Four lifting columns (31) are provided, two of which are connected to the two horizontal rods (32) respectively, and the pressure rods (53) in the two lifting columns (31) are connected to the control frame (43) through the first reversing rod (51) and the second reversing rod (52); the other two lifting columns (31) are respectively fixed to one end of the two grasping frames (34) away from the handle (41), and the pressure rods (53) in the other two lifting columns (31) penetrate the grasping frames (34) and are respectively fixed to the two ends of the control frame (43).

8. The anti-deflection trolley case according to claim 5, characterized in that: The clamping column (22) is arranged horizontally, and the angle between the limiting groove (211) and the vertical direction is 20 degrees to 35 degrees.

9. The anti-deflection trolley case according to claim 5, characterized in that: The fixed slide bar (1) is provided with a plurality of the clamping holes (11) arranged side by side in the vertical direction; the plurality of the clamping holes (11) are symmetrically arranged on both sides of the lifting slide bar (3).

10. The anti-deflection trolley case according to any one of claims 1 to 9, characterized in that: A handle (9) is provided on the top of the first box body (6), and the handle (9) is arranged between the two extension frames (33).

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