Draw-bar box draw bar with foldable storage function

Abstract

The utility model discloses a draw-bar box draw bar with a foldable storage function, which relates to the technical field of draw-bar boxes and comprises a box body, a mounting groove is arranged at the top of the rear side of the box body, and a foldable draw bar component is mounted in the mounting groove; the folding pull rod assembly comprises two fixing rods fixedly connected to the interior of the mounting groove, the two fixing rods are symmetrically mounted in the mounting groove, rotating rods are rotationally connected to the tops of the two fixing rods through damping hinges, telescopic rods are slidably connected to the interiors of the two rotating rods, and the telescopic rods are of a U-shaped structure; guide grooves are formed in the two sides of the upper end of the fixing rod and extend to the end of the rotating rod, and the two sides of the interior of the fixing rod are each slidably connected with two symmetrically-distributed positioning blocks. According to the draw-bar box with the folding storage function, the draw bar, the rotating rod and the fixed rod are of a folding structure, so that the draw bar can be rotated and folded to the top of the mounting groove when not used, the space occupied by the draw bar is greatly reduced, and the draw-bar box is convenient to stack and transport.

Description

TECHNICAL FIELD

[0001] The utility model relates to trolley case technical field, concretely is a trolley case pull rod with foldable storage function. BACKGROUND

[0002] The trolley case pull rod is a telescopic handle on a luggage case, which is used for conveniently dragging the luggage case by a user, is usually made of metal or plastic, is fixed on the back of the case body, and has a main function of allowing the user to easily move the luggage case and reduce the burden of carrying.

[0003] In order to realize the above function, the prior art (publication number: CN209788873U) discloses a trolley case pull rod, which comprises a lifting rod and a handle, the upper end of the lifting rod is provided with a rotating groove, a rotating shaft is inserted into the rotating groove, one end of the rotating shaft extending out of the rotating groove is connected with the handle, a limiting device for limiting the position of the rotating shaft is arranged on the rotating shaft, the limiting device comprises a limiting rod, the inner wall of the rotating groove is provided with a sliding groove penetrating through the outer wall of the lifting rod, the limiting rod is inserted into the sliding groove, a limiting groove is arranged on the outer wall of the rotating shaft, the limiting rod is inserted into the limiting groove, one end of the limiting rod away from the limiting groove is fixedly provided with a fixed plate, a limiting spring is arranged between the fixed plate and the outer wall of the lifting rod, one end of the limiting spring is fixedly connected with the outer wall of the lifting rod, and the other end of the limiting spring is connected with the fixed plate. The utility model can realize the disassembly of the handle and adjust the angle of the handle.

[0004] Although the prior art can overcome the above-mentioned deficiencies, there are still other problems in the operation process: the trolley case pull rod is usually integrally installed on one side of the trolley case, which occupies a large space on one side of the trolley case, and when the trolley case is stacked and transported, the part of the pull rod protruding outside the trolley case will affect the stacking or storage of the trolley case. TECHNICAL SOLUTION

[0005] The utility model aims at providing a trolley case pull rod with foldable storage function to solve the problem that the trolley case pull rod is usually integrally installed on one side of the trolley case, which occupies a large space on one side of the trolley case, and when the trolley case is stacked and transported, the part of the pull rod protruding outside the trolley case will affect the stacking or storage of the trolley case.

[0006] To achieve the above object, the utility model provides the following technical scheme: a trolley case pull rod with foldable storage function, comprising a case body, a mounting groove is arranged on the top of the rear side of the case body, and a folding pull rod assembly is mounted in the mounting groove;

[0007] The folding pull rod assembly comprises a fixed rod fixedly connected to the inside of the mounting groove, the fixed rod is provided with two symmetrical mounting grooves in the inside of the mounting groove, two rotating rods are rotatably connected to the top of the fixed rod through a damping hinge, a telescopic rod is slidably connected to the inside of the two rotating rods, and the telescopic rod has a U-shaped structure.

[0008] Preferably, the upper end of the fixed rod is provided with guide grooves on both sides, and the guide grooves extend to the end of the rotating rod; the inside of the fixed rod is slidably connected with two symmetrical positioning blocks on both sides, and the positioning spring is fixedly connected between every two positioning blocks.

[0009] Preferably, the outside of the fixed rod is slidably connected with a fixed sleeve through the guide grooves; the inside of the fixed sleeve is provided with a positioning sliding groove in the middle; the lower end of the positioning sliding groove is provided with a positioning hole; the end of the positioning block, which is away from the positioning spring, is slidably connected to the inside of the positioning sliding groove; and the positioning block is clampedly connected to the inside of the positioning hole.

[0010] Preferably, the movable strip is fixedly connected between the two fixed sleeves; the movable strip is rotatably connected with a fixed strip in the middle of the top of the movable strip; the end of the fixed strip, which is away from the movable strip, is clampedly connected with a connecting strip; and the connecting strip is fixedly connected between the two rotating rods.

[0011] Preferably, the telescopic rod is of a hollow structure; the inside of the telescopic rod is fixedly connected with a positioning rod on both sides; and the connecting strip is directly fixedly connected with a button.

[0012] Preferably, the button is arranged on the top of the connecting strip; the pressing part of the button extends to below the middle of the upper end of the telescopic rod; the lower end of the telescopic rod is fixedly connected with symmetrically distributed supporting blocks on both sides; and the top of the supporting block is fixedly connected with a pressing spring.

[0013] Preferably, the end of the pressing spring, which is away from the supporting block, is fixedly connected with a fixed block; the fixed block is fixedly connected to the inside of the telescopic rod; the lower end of the telescopic rod is slidably connected with symmetrically distributed positioning sliding blocks on both sides; the middle of the two positioning sliding blocks and the bottom of the positioning rod are mutually attached; the side, which is away from each other, of the two positioning sliding blocks is provided with anti-skid lines; the contact surface of the positioning sliding block and the positioning rod is provided with complementary inclined guide surfaces; the end of the positioning sliding block, which is away from the inside of the telescopic rod, extends to the outside of the telescopic rod; and the inside of the positioning sliding block and the rotating rod are mutually attached.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The folding structure of the rotating rod and the fixed rod enables the pull rod to be folded on the top of the mounting groove when not in use, greatly reduces the space occupied by the pull rod, and facilitates the stacking and transportation of the pull rod box.

[0016] The user only needs to press the button to easily adjust the height of the pull rod; after being released, the positioning sliding block is automatically clamped into the inner wall of the rotating rod by the driving of the pressing spring, so that the telescopic rod cannot slide or shake. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 This is a schematic diagram of the rotating rod folding structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the box structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the fixing rod of this utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the rotating rod of this utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the telescopic rod of this utility model.

[0023] In the diagram: 1. Housing; 2. Mounting slot; 3. Fixing rod; 4. Rotating rod; 5. Telescopic rod; 6. Guide groove; 7. Positioning block; 8. Positioning spring; 9. Fixing sleeve; 10. Positioning slide; 11. Positioning hole; 12. Movable strip; 13. Fixing strip; 14. Connecting strip; 15. Positioning rod; 16. Button; 17. Support block; 18. Downward pressure spring; 19. Fixing block; 20. Positioning slider. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides the following technical solution: a foldable storage trolley handle, including a case body 1, a mounting groove 2 on the top rear side of the case body 1, and a folding trolley assembly mounted in the mounting groove 2; the folding trolley assembly includes a fixed rod 3 fixedly connected inside the mounting groove 2, and two fixed rods 3 symmetrically mounted inside the mounting groove 2, the top of each of the two fixed rods 3 being rotatably connected to a rotating rod 4 via a damping hinge, and a telescopic rod 5 slidably connected inside the two rotating rods 4, the telescopic rod 5 having a U-shaped structure; guide grooves 6 are provided on both sides of the upper end of the fixed rod 3, and the guide grooves 6 extend to the ends of the rotating rods 4, and two symmetrically distributed guide grooves are slidably connected on both sides inside the fixed rod 3. A positioning block 7 is provided, and a positioning spring 8 is fixedly connected between every two positioning blocks 7; a fixing sleeve 9 is slidably connected to the outside of the fixing rod 3 through the guide groove 6, and a positioning slide groove 10 is provided in the middle of the inner side of the fixing sleeve 9. A positioning hole 11 is provided at the lower end of the positioning slide groove 10, and the end of the positioning block 7 away from the positioning spring 8 is slidably connected to the inner side of the positioning slide groove 10, and the positioning block 7 is engaged with the inside of the positioning hole 11; a movable strip 12 is fixedly connected between the two fixing sleeves 9, and a fixing strip 13 is rotatably connected to the middle of the top of the movable strip 12. A connecting strip 14 is engaged with the end of the fixing strip 13 away from the movable strip 12, and the connecting strip 14 is fixedly connected between the two rotating rods 4.

[0026] By rotating the fixing bar 13 to separate it from the connecting bar 14, the rotating rod 4 at the top of the fixing rod 3 is rotated so that the fixing rod 3 and the rotating rod 4 are on the same straight line. At this time, the telescopic rod 5 will be located at the top of the box 1. The height of the telescopic rod 5 inside the rotating rod 4 can be adjusted by pulling it, thereby adjusting the height of the folding rod assembly.

[0027] When the fixed rod 3 and the rotating rod 4 are on the same straight line, the guide groove 6 will be aligned with the part of it extending to the end of the rotating rod 4. At this time, pulling the movable bar 12 will cause the fixed sleeve 9 to slide upward along the guide groove 6 until both ends of the fixed sleeve 9 are located inside the guide grooves 6 on both sides of the fixed rod 3 and the rotating rod 4. At this time, the fixed sleeve 9 will fix the connection between the fixed rod 3 and the rotating rod 4, thereby preventing the rotating rod 4 and the fixed rod 3 from rotating during use.

[0028] Positioning blocks 7 are installed on both sides of the inside of the fixed rod 3. The contact surfaces of the positioning blocks 7, the positioning grooves 10, and the positioning holes 11 are all arc-shaped. When the bottom of the fixed sleeve 9 and the guide groove 6 are in contact with each other, the positioning blocks 7 at the bottom will engage with the inside of the positioning holes 11, thereby fixing the position of the fixed sleeve 9 inside the guide groove 6. When the fixed sleeve 9 slides upward, the positioning blocks 7 will slide inside the positioning grooves 10. When the upper end of the fixed sleeve 9 is installed inside the guide grooves 6 on both sides of the rotating rod 4, the positioning blocks 7 at the top and the positioning holes 11 are aligned with each other. The preload of the positioning spring 8 pushes the two positioning blocks 7 to move radially outward and engage with the positioning holes 11, thereby fixing the position of the fixed sleeve 9 at the connection between the fixed rod 3 and the rotating rod 4.

[0029] When folding the folding rod assembly, first pull the movable bar 12 to move the fixed sleeve 9 to the outside of the fixed rod 3. At this time, the fixed sleeve 9 will separate from the connection between the fixed rod 3 and the rotating rod 4. At this time, the rotating rod 4 will not be interfered with when rotating. At the same time, move the telescopic rod 5 into the inside of the rotating rod 4 and rotate the rotating rod 4 until the rotating rod 4 and the fixed rod 3 are parallel to each other, thereby completing the folding operation of the folding rod assembly. After folding, rotate the fixed bar 13 to make it engage and lock with the connecting bar 14 to ensure that the folded rod will not be accidentally unfolded.

[0030] By rotating the fixing bar 13 to separate it from the connecting bar 14, the rotating rod 4 can rotate freely. Since the top of the fixing bar 3 is damped at the connection with the rotating rod 4, there will be a certain resistance when rotating the rotating rod 4 to ensure that it will not be too loose. Continue to rotate until the fixing bar 3 and the rotating rod 4 are on the same straight line to form a complete tie rod structure.

[0031] Example 2: Based on Example 1, the following structure is also disclosed: the telescopic rod 5 is a hollow structure, and positioning rods 15 are fixedly connected to the inner sides of both sides of the telescopic rod 5, and a button 16 is directly and fixedly connected to the connecting strip 14; the button 16 is located at the top of the connecting strip 14, and its pressing part extends to the lower part of the upper middle of the telescopic rod 5, and symmetrically distributed support blocks 17 are fixedly connected to both sides of the lower end of the telescopic rod 5, and a downward pressure spring 18 is fixedly connected to the top of the support block 17; the end of the downward pressure spring 18 away from the support block 17 is fixedly connected to There is a fixing block 19, which is fixedly connected to the inside of the telescopic rod 5. The lower end of the telescopic rod 5 is slidably connected to symmetrically distributed positioning sliders 20. The middle of the two positioning sliders 20 and the bottom of the positioning rod 15 are in contact with each other. The side of the two positioning sliders 20 that is far away from each other is provided with anti-slip texture. The contact surface between the positioning slider 20 and the positioning rod 15 is provided with complementary inclined guide surfaces. The end of the positioning slider 20 that is far away from the inside of the telescopic rod 5 extends to the outside of the telescopic rod 5. The positioning slider 20 and the inner side of the rotating rod 4 are in contact with each other.

[0032] During use, when it is necessary to adjust the height of the telescopic rod 5, press button 16. At this time, button 16 will drive the positioning rod 15 to move upward. When the positioning rod 15 is lifted, its bottom will separate from the positioning slider 20, so that the positioning slider 20 is no longer restricted and can slide freely at the lower end of the telescopic rod 5. At this time, the user can adjust the position of the telescopic rod 5 inside the rotating rod 4 as needed to achieve height adjustment.

[0033] When button 16 is released, the pressing spring 18 will drive the support block 17 to move downward. The support block 17 will cause the lower end of the positioning rod 15 and the positioning slider 20 to come into contact with each other. Since the contact surface between the positioning slider 20 and the positioning rod 15 is provided with complementary inclined guide surfaces, the positioning rod 15 will drive the positioning slider 20 to move towards the outside of the telescopic rod 5 until the positioning slider 20 and the inner side of the rotating rod 4 are in contact with each other. The friction provided by the contact between the positioning slider 20 and the inner side of the rotating rod 4 fixes the position of the telescopic rod 5 inside the rotating rod 4.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A foldable storage trolley handle, comprising a case body (1), wherein a mounting groove (2) is provided on the top rear side of the case body (1), and a folding trolley assembly is mounted in the mounting groove (2); Its features are: The folding rod assembly includes a fixed rod (3) fixedly connected inside the mounting groove (2), and the fixed rod (3) has two symmetrically installed inside the mounting groove (2). The top of the two fixed rods (3) is rotatably connected to a rotating rod (4) through a damping hinge. The two rotating rods (4) are slidably connected to a telescopic rod (5), and the telescopic rod (5) has a U-shaped structure.

2. The foldable storage trolley handle according to claim 1, characterized in that: The upper end of the fixed rod (3) is provided with guide grooves (6) on both sides, and the guide grooves (6) extend to the end of the rotating rod (4). The two sides of the fixed rod (3) are slidably connected to two symmetrically distributed positioning blocks (7), and a positioning spring (8) is fixedly connected between each two positioning blocks (7).

3. The foldable storage trolley handle according to claim 2, characterized in that: The fixing rod (3) is slidably connected to the fixing sleeve (9) through the guide groove (6) on the outside, and the fixing sleeve (9) is provided with a positioning groove (10) in the middle of the inner side. The positioning groove (10) is provided with a positioning hole (11) at the lower end. The positioning block (7) is slidably connected to the inner side of the positioning groove (10) at the end away from the positioning spring (8), and the positioning block (7) is engaged with the inside of the positioning hole (11).

4. The foldable storage trolley handle according to claim 3, characterized in that: A movable strip (12) is fixedly connected between the two fixed sleeves (9), and a fixed strip (13) is rotatably connected to the top center of the movable strip (12). A connecting strip (14) is engaged at the end of the fixed strip (13) away from the movable strip (12), and the connecting strip (14) is fixedly connected between the two rotating rods (4).

5. The foldable storage trolley handle according to claim 1, characterized in that: The telescopic rod (5) has a hollow structure, and positioning rods (15) are fixedly connected to the inner sides of both sides of the telescopic rod (5), and buttons (16) are directly fixedly connected to the connecting strip (14).

6. The foldable storage trolley handle according to claim 5, characterized in that: The button (16) is located at the top of the connecting bar (14), and its pressing part extends to the lower part of the upper middle of the telescopic rod (5). The lower ends of the telescopic rod (5) are fixedly connected with symmetrically distributed support blocks (17), and the top of the support blocks (17) is fixedly connected with a downward pressure spring (18).

7. The foldable storage trolley handle according to claim 6, characterized in that: The end of the compression spring (18) away from the support block (17) is fixedly connected to a fixing block (19), and the fixing block (19) is fixedly connected to the inside of the telescopic rod (5). The lower ends of the telescopic rod (5) are slidably connected to symmetrically distributed positioning sliders (20), and the middle of the two positioning sliders (20) and the bottom of the positioning rod (15) are in contact with each other. The side of the two positioning sliders (20) away from each other is provided with anti-slip texture. The contact surface between the positioning slider (20) and the positioning rod (15) is provided with complementary inclined guide surfaces. The end of the positioning slider (20) away from the inside of the telescopic rod (5) extends to the outside of the telescopic rod (5), and the inner side of the positioning slider (20) and the rotating rod (4) are in contact with each other.

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