CN210120960U

CN210120960U - Telescopic draw bar structure based on draw-bar box

Info

Publication number: CN210120960U
Application number: CN201921015934.7U
Authority: CN
Inventors: 沈志军
Original assignee: Danyi Luggage Hangzhou Co Ltd
Current assignee: Danyi Luggage Hangzhou Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-03-03
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a telescopic draw-bar structure based on draw-bar box relates to draw-bar box pull rod technical field. The inside fixed mounting on installation base top has buffering protection machanism, buffering protection machanism includes the bottom plate of fixed connection in the inside bottom of installation base, two mounting bases are installed to the upper surface symmetry of bottom plate, a horizontal pole of fixedly connected with between two mounting base looks proximal surface, two sleeves have been cup jointed in the outside symmetry activity of horizontal pole, the outside fixed cover that just is located the horizontal pole between sleeve and the mounting base has a district section buffer spring, mounting base's top fixedly connected with telescopic link, the flexible end mounting of telescopic link has the pressure-bearing support plate, when two district section pull rods retract to the inside of a district section pull rod, buffering protection machanism can fully effectually protect the tip of two district section pull rods, the phenomenon that pull rod self damaged prevents to appear, the practicality of pull rod has been improved by a wide margin, structure scientific and reasonable.

Description

Telescopic draw bar structure based on draw-bar box

Technical Field

The utility model relates to a draw-bar box pull rod technical field specifically is a telescopic draw-bar structure based on draw-bar box.

Background

A trolley case refers to a luggage case having a trolley and rollers. It is widely used because of its convenient use. Meanwhile, the draw-bar box is also provided with a draw bar which is divided into a single-tube draw bar and a double-tube draw bar, and the tube of the draw bar is divided into a square tube and a round tube, so that the draw-bar box is convenient to drag when walking, and the burden is greatly reduced. The draw-bar box can be carried by hand or dragged, wheels of the draw-bar box used by people at ordinary times are basically located at the bottom of the box, modern people design the draw-bar box in a new form, the box is designed into a cylindrical shape, the wheels are wholly wrapped outside the box, and the draw-bar box can be better adapted to different terrains by the design of the roller, and people can easily go upstairs and downstairs by directly pulling the box.

The pull rod is one of the important components of the draw-bar box, the pull rod can improve the portability of the draw-bar box in the moving process, but the pull rod used on the existing draw-bar box is complex in structure and single in function, the pull rod on the existing draw-bar box usually consists of two pull rods with the adaptive thickness degree for realizing the telescopic function, when one of the pull rods is contracted into the other one, due to the lack of a buffer structure, the end part of the pull rod can be damaged by the generated impact force when the pull rod is contracted, and the telescopic function of the pull rod is lost as long as time passes, so that the telescopic draw-bar structure based on the draw-bar box is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a telescopic draw-bar structure based on draw-bar box has solved the pull rod and has been constituteed by the pull rod of two thickness degree looks adaptations, and when one of them pull rod shrink to the inside of another pull rod, owing to lack buffer structure, the pull rod is when the shrink, and the impact force of production can make the tip of self take place to damage, and in the long term, makes the pull rod lose the problem of telescopic function.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a telescopic draw-bar structure based on draw-bar box, includes installation base and the first frame that links up of fixed mounting on the draw-bar box, the bottom of the outside fixedly connected with district section pull rod on installation base top, the fixed top of cup jointing at a district section pull rod of first linking frame, the inside of a district section pull rod is provided with but the two district section pull rods of pull, the top of two district section pull rods extends to the top of first linking frame to the fixed second that has cup jointed links up the frame, the inside fixedly connected with pull rod handle's of second linking frame bottom, the inboard fixed mounting at installation base top has buffering protection machanism.

Buffering protection mechanism includes the bottom plate of fixed connection in the inside bottom of installation base, two mounting bases are installed to the upper surface symmetry of bottom plate, a horizontal pole of fixedly connected with between two mounting base looks adjacent surfaces, two sleeves have been cup jointed in the outside symmetry activity of horizontal pole, the outside fixed cover that just is located the horizontal pole between sleeve and the mounting base has a district section buffer spring, mounting base's top fixedly connected with telescopic link, the flexible end mounting of telescopic link has the pressure-bearing support plate, the fixed cover of fixed cover has two district section buffer springs between the outside of the flexible district section of telescopic link and the pressure-bearing support plate.

Preferably, a linking piece is fixedly installed in the middle section of the bottom end of the pressure-bearing support plate, two buffer rods are symmetrically connected to the inside of the bottom end of the linking piece, and the bottom ends of the two buffer rods are respectively connected with the top ends of the two sleeves correspondingly.

Preferably, rotatable connecting structures are formed between the connecting piece and the two buffer rods and between the two buffer rods and the sleeve through pin shafts.

Preferably, the pressure-bearing support plate is a rubber member, and the telescopic end of the telescopic rod is fixedly connected with the bottom end of the pressure-bearing support plate through a pin shaft.

Preferably, the pull rod handle includes the shell body, the inside bottom surface symmetric connection of shell body has two first spacing posts, the actuating lever has been cup jointed in the outside activity of first spacing post, the one end fixedly connected with button of actuating lever, the spacing post of the other end fixedly connected with second of actuating lever, the equal fixedly connected with connecting rod in both ends of shell body bottom.

Preferably, the top end of the button is located outside the outer housing, and the connecting rod is fixedly connected to the inside of the second linking frame in an inserting manner and is connected by a screw.

Advantageous effects

The utility model provides a telescopic draw-bar structure based on draw-bar box. Compared with the prior art, the method has the following beneficial effects:

1. the telescopic draw bar structure based on the draw bar box is characterized in that a buffer protection mechanism is fixedly arranged inside the top end of a mounting base, the buffer protection mechanism comprises a bottom plate fixedly connected to the bottom end inside the mounting base, two mounting bases are symmetrically arranged on the upper surface of the bottom plate, a cross bar is fixedly connected between the adjacent surfaces of the two mounting bases, two sleeves are symmetrically movably sleeved outside the cross bar, a section of buffer spring is fixedly sleeved outside the cross bar between the sleeves and the mounting bases and outside the cross bar, a telescopic rod is fixedly connected to the top of the mounting base, a pressure-bearing support plate is fixedly arranged at the telescopic end of the telescopic rod, a section of buffer spring is fixedly sleeved between the outside of the telescopic section of the telescopic rod and the pressure-bearing support plate, when the section of the two sections of draw bars are retracted into the section of the one section of draw bar, the phenomenon that the pull rod is damaged is prevented, and the practicability of the pull rod is greatly improved.

2. This telescopic draw-bar structure based on draw-bar box is provided with first linking frame through being provided with between two district's section pull rods and the district's section pull rod, is provided with the second between pull rod handle and the two district's section pull rods and links up the frame, can improve the self hardness of whole pull rod, improves the heavy burden performance of pull rod when dragging the draw-bar box and remove, structure scientific and reasonable, convenience safe in utilization.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

FIG. 2 is a schematic view of the assembly structure of the present invention;

FIG. 3 is a schematic view of the connection structure of the first section tie rod and the second section tie rod of the present invention;

fig. 4 is a schematic structural view of the buffering protection mechanism of the present invention;

fig. 5 is a schematic structural view of the pull rod handle of the present invention.

In the figure: 1. installing a base; 2. a segment tie rod; 3. a first engagement frame; 4. a two-section pull rod; 5. a second engagement frame; 6. a pull rod handle; 61. an outer housing; 62. a first limit post; 63. a drive rod; 64. a button; 65. a second limit post; 66. a connecting rod; 7. a buffer protection mechanism; 71. a base plate; 72. mounting a base; 73. a cross bar; 74. a sleeve; 75. a segment buffer spring; 76. a two-section buffer spring; 77. a telescopic rod; 78. a pressure-bearing support plate; 79. a joining member; 710. a buffer rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a telescopic draw-bar structure based on draw-bar box, including fixed mounting 1 and the first frame 3 that links up on the draw-bar box, the bottom of the outside fixedly connected with district's section pull rod 2 on 1 top of installation base, the fixed top of cup jointing at a district's section pull rod 2 of first linking frame 3, the inside of a district's section pull rod 2 is provided with two district's section pull rods 4 that can pull, the top of two district's section pull rods 4 extends to the top of first linking frame 3, and fixed the second that has cup jointed links up frame 5, the inside fixedly connected with pull rod handle 6's of second linking frame 5 bottom, the inboard fixed mounting at 1 top of installation base has buffering protection machanism 7.

Referring to fig. 4, the buffering protection mechanism 7 includes a bottom plate 71 fixedly connected to the bottom end inside the mounting base 1, two mounting bases 72 are symmetrically mounted on the upper surface of the bottom plate 71, a cross rod 73 is fixedly connected between adjacent surfaces of the two mounting bases 72, two sleeves 74 are symmetrically and movably sleeved outside the cross rod 73, a section buffer spring 75 is fixedly sleeved between the sleeve 74 and the mounting base 72 and outside the cross rod 73, an expansion link 77 is fixedly connected to the top of the mounting base 72, a pressure-bearing support plate 78 is fixedly mounted to the expansion link 77, a section buffer spring 76 is fixedly sleeved between the outside of the expansion link 77 and the pressure-bearing support plate 78, a connecting member 79 is fixedly mounted to the middle section of the bottom end of the pressure-bearing support plate 78, two buffer rods 710 are symmetrically connected to the bottom end inside the connecting member 79, the bottom ends of the two buffer rods 710 are correspondingly connected to, rotatable connecting structures are formed between the connecting piece 79 and the two buffer rods 710 and between the two buffer rods 710 and the sleeve 74 through pin shafts, the bearing carrier plate 78 is a rubber component, and the telescopic end of the telescopic rod 77 is fixedly connected with the bottom end of the bearing carrier plate 78 through the pin shafts.

Referring to fig. 5, the pull rod handle 6 includes an outer shell 61, two first limiting posts 62 are symmetrically connected to the bottom surface inside the outer shell 61, a driving rod 63 is sleeved on the outside of the first limiting posts 62, a button 64 is fixedly connected to one end of the driving rod 63, a second limiting post 65 is fixedly connected to the other end of the driving rod 63, a connecting rod 66 is fixedly connected to both ends of the bottom of the outer shell 61, the top end of the button 64 is located outside the outer shell 61, and the connecting rod 66 is fixedly connected inside the second linking frame 5 in an inserting manner and connected by screws.

When the two-section pull rod 4 is completely retracted into the one-section pull rod 2, the bottom end of the two-section pull rod 4 directly contacts with the rubber pressure-bearing carrier plate 78, when the two-section pull rod 4 contacts with the rubber pressure-bearing carrier plate 78, the generated impact force acts on the pressure-bearing carrier plate 78, and then is transmitted, a part of the impact force acts on the expansion rod 77, so that the expansion rod 77 is contracted, the two-section buffer spring 76 is compressed, and the part of the impact force is offset, while the other part of the impact force acts on the connecting piece 79, and under the action of the rotating shaft and the buffer rod 710, the two sleeves 74 are directly acted on the sleeves 74, so that the two sleeves 74 are both moved on the cross rod 73, the distance between the two sleeves 74 is increased, the one-section buffer spring 75 is compressed, and the offset of the rest of the impact force is realized, and after the two offsets, the end part of the two-section pull rod 4 is effectively protected, thereby prolonging the service life of the pull rod.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a telescopic draw-bar structure based on draw-bar box, includes that fixed mounting is on the draw-bar box installation base (1) and first linking frame (3), its characterized in that: the outer portion of the top end of the mounting base (1) is fixedly connected with the bottom end of a first section pull rod (2), the first connecting frame (3) is fixedly sleeved at the top end of the first section pull rod (2), a second section pull rod (4) capable of being pulled is arranged inside the first section pull rod (2), the top end of the second section pull rod (4) extends to the upper portion of the first connecting frame (3) and is fixedly sleeved with a second connecting frame (5), the inner portion of the second connecting frame (5) is fixedly connected with the bottom end of a pull rod handle (6), and a buffering protection mechanism (7) is fixedly mounted on the inner side of the top portion of the mounting base (1);

buffer protection mechanism (7) are including bottom plate (71) of fixed connection in the inside bottom of installation base (1), two mounting bases (72) are installed to the upper surface symmetry of bottom plate (71), and a horizontal pole (73) of fixedly connected with between the adjacent surface of two mounting bases (72), two sleeves (74) have been cup jointed in the outside symmetry activity of horizontal pole (73), a district's section buffer spring (75) has been cup jointed to the external fixation that just is located horizontal pole (73) between sleeve (74) and mounting base (72), the top fixedly connected with telescopic link (77) of mounting base (72), the flexible end mounting of telescopic link (77) has pressure-bearing support plate (78), fixed cover between the outside of the flexible district of telescopic link (77) and pressure-bearing support plate (78) has two district's section buffer spring (76).

2. The telescopic draw-bar construction based on draw-bar box according to claim 1, characterized in that: the middle section of the bottom end of the pressure-bearing carrier plate (78) is fixedly provided with a connecting piece (79), the inside of the bottom end of the connecting piece (79) is symmetrically connected with two buffer rods (710), and the bottom ends of the two buffer rods (710) are respectively connected with the top ends of the two sleeves (74) correspondingly.

3. A draw-bar box based telescopic draw-bar structure according to claim 2, wherein: rotatable connecting structures are formed between the connecting piece (79) and the two buffering rods (710) and between the two buffering rods (710) and the sleeve (74) through pin shafts.

4. A draw-bar box based telescopic draw-bar structure according to claim 3, wherein: the pressure-bearing support plate (78) is a rubber component, and the telescopic end of the telescopic rod (77) is fixedly connected with the bottom end of the pressure-bearing support plate (78) through a pin shaft.

5. The telescopic draw-bar construction based on draw-bar box according to claim 1, characterized in that: the pull rod handle (6) comprises an outer shell (61), two first limiting columns (62) are symmetrically connected to the inner bottom surface of the outer shell (61), a driving rod (63) is sleeved on the outer portion of the first limiting column (62), one end of the driving rod (63) is fixedly connected with a button (64), the other end of the driving rod (63) is fixedly connected with a second limiting column (65), and two ends of the bottom of the outer shell (61) are fixedly connected with connecting rods (66).

6. The telescopic draw-bar construction based on draw-bar box of claim 5, characterized in that: the top end of the button (64) is positioned outside the outer shell (61), and the connecting rod (66) is fixedly connected inside the second connecting frame (5) in an inserting mode and is connected through screws.