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CN-224219641-U - Suitcase pull rod with synchronous flexible function

CN224219641UCN 224219641 UCN224219641 UCN 224219641UCN-224219641-U

Abstract

The utility model discloses a luggage pull rod with a synchronous telescopic function, which comprises a fixed rod, a movable rod I, a movable rod II, a movable rod III, a positioning structure, a cross rod and a control structure, wherein the movable rod I is arranged at the top of the fixed rod, the movable rod II is arranged at the top of the movable rod I, the movable rod III is arranged at the top of the movable rod II, the positioning structure is arranged at the top of the fixed rod, the cross rod is arranged at the top of the movable rod III, and the control structure is arranged in the cross rod. Compared with the prior art, the utility model has the advantages that zero looseness is ensured through the design of the inclined planes of the V-shaped guide block and the guide inclined plane, the steel wire rope is matched for linkage use, stress points are dispersed, the clamping of a single side is avoided, the synchronism can still be kept in a rust environment, the synchronous stretching function of the two sides of the pull rod is realized, the strength and the quality of the pull rod are improved, and the problem that the stretching heights of the pull rods at the two sides are inconsistent due to the fact that the single-side spring beads are easy to lose efficacy caused by abrasion and dust of the traditional pull rod is solved.

Inventors

  • LIU HANCONG
  • FANG YIREN
  • HE XIANJUN

Assignees

  • 东莞市信耀五金塑胶制品有限公司

Dates

Publication Date
20260512
Application Date
20250625

Claims (4)

  1. 1. The utility model provides a suitcase pull rod with synchronous flexible function, includes dead lever (1), dead lever (1) top is equipped with movable lever one (2), movable lever one (2) top is equipped with movable lever two (3), movable lever two (3) top is equipped with movable lever three (4), its characterized in that still includes: The positioning structure (5), the positioning structure (5) is arranged at the top of the fixed rod (1), the positioning structure (5) comprises a positioning sleeve (51), a connecting piece (52) is arranged at the bottom of the positioning sleeve (51), a first groove is formed in the lower portion of one end of the connecting piece (52), rectangular sliding grooves (53) are formed in two ends of the connecting piece (52), a first square frame (54) is connected inside the rectangular sliding grooves (53) in a sliding mode, a first guide column (55) is fixedly connected to the lower portion of two ends of the inner wall of the first square frame (54), a first positioning block (56) is connected inside the first groove in a sliding mode, a first guide chute (57) is formed in the two ends of the outer wall of the first positioning block (56), and the first guide column (55) is connected inside the first guide chute (57) in a sliding mode; The cross rod (6) is arranged at the top of the movable rod III (4), the cross rod (6) comprises a bottom cover (61), and a top cover (62) is arranged at the top of the bottom cover (61); Control structure (7), control structure (7) are located inside horizontal pole (6), control structure (7) are including sliding connection in button (71) of bottom (61) bottom, button (71) inner wall top both ends fixedly connected with V-arrangement guide block (72), inside both ends of horizontal pole (6) are equipped with movable rod (73), the one end that movable rod (73) is relative is equipped with U-shaped piece (74), U-shaped piece (74) both ends bottom is equipped with direction inclined plane (75), direction inclined plane (75) are used with V-arrangement guide block (72) cooperation, fixedly connected with spring three (76) between button (71) inner wall centre and top cap (62).
  2. 2. The luggage pull rod with the synchronous telescopic function according to claim 1, wherein the tops of the fixed rod (1), the movable rod I (2) and the movable rod II (3) are respectively provided with a positioning sleeve (51).
  3. 3. The luggage pull rod with synchronous telescopic function according to claim 1, wherein the rectangular sliding groove (53) is communicated with the inside of the first groove, a positioning hole is formed in one end of the first inner wall of the first groove, a second groove is formed in the bottom of the first positioning block (56), a positioning rod (58) is inserted into one end of the second inner wall of the second groove, the positioning rod (58) is slidably connected in the positioning hole, a pressing plate (59) is fixedly connected to one end of the positioning rod (58) located in the second groove, a first spring (510) is fixedly connected between the first inner wall of the first groove and the first positioning block (56), a second spring (511) is fixedly connected between the pressing plate (59) and the second inner wall of the second groove, the first spring (510) is sleeved outside the positioning rod (58), and the second spring (511) is sleeved outside one end of the positioning rod (58).
  4. 4. The luggage pull rod with synchronous telescoping function of claim 1, wherein steel wire ropes (78) are inserted into two ends of the bottom cover (61), limiting blocks (77) are arranged at two ends of each steel wire rope (78), one end of each limiting block (77) is arranged at one end inside each movable rod (73), the other end of each limiting block (77) is connected with a clamping block (79) in a clamping mode, a second square frame (710) is arranged at the bottom of each clamping block (79), guide posts II (711) are fixedly connected to the lower portions of two ends of the inner wall of the second square frame (710), a second positioning block (712) is arranged at the bottom of the second square frame (710), guide chute II (713) is arranged at two ends of the outer wall of each positioning block II (712), the guide posts II (711) are connected to the second guide chute (713) in a sliding mode, and a fourth spring (714) is fixedly connected to one end of the outer wall of each positioning block II (712).

Description

Suitcase pull rod with synchronous flexible function Technical Field The utility model relates to the technical field of trunk pull rods, in particular to a trunk pull rod with a synchronous telescopic function. Background The luggage case, also called suitcase, draw-bar box, is a case carried by a person when going out for holding articles, and is one type of luggage, including a case body, pulleys and a draw bar. The pull rod comprises a fixed rod and a movable rod, the fixed rod is fixedly connected with the box body, the movable rod is movably matched with the fixed rod, and the movable rod can be pulled out or stretched into the fixed rod. Luggage is commonly used to hold items of clothing, personal care products, and souvenirs that are needed for travel. The suitcase pull rod of prior art adopts flexible gliding mode extension to use mostly, and traditional pull rod relies on unilateral spring pearl or buckle locking for fixed flexible gear, but easily lead to unilateral inefficacy because of wearing and tearing, in long-term tensile use, the suitcase pull rod can produce wearing and tearing, if unilateral spring pearl is blocked by dust, foreign matter or spring inefficacy, can make unilateral pull rod frictional resistance increase, flexible hysteresis is in the opposite side, lead to unilateral pull rod unable flexible even, make both sides pull rod flexible highly inconsistent, it pulls the slope and damages the track even to cause to appear rocking, and then cause the damage, can influence the use, appear as both sides highly inconsistent, thereby the quality when leading to its use becomes low, also produce a great deal of inconvenience easily when going out. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. Disclosure of utility model The utility model aims to overcome the defects and provide the luggage pull rod with the synchronous telescopic function. In order to solve the technical problems, the technical scheme provided by the utility model is that the suitcase pull rod with the synchronous telescopic function comprises a fixed rod, wherein the top of the fixed rod is provided with a movable rod I, the top of the movable rod I is provided with a movable rod II, and the top of the movable rod II is provided with a movable rod III, and the suitcase pull rod is characterized by further comprising: The positioning structure is arranged at the top of the fixed rod and comprises a positioning sleeve, a connecting piece is arranged at the bottom of the positioning sleeve, a first groove is formed in the lower part of one end of the connecting piece, rectangular sliding grooves are formed in the two ends of the connecting piece, a first square frame is connected inside the rectangular sliding grooves in a sliding mode, a first guide post is fixedly connected to the lower parts of the two ends of the inner wall of the first square frame, a first guide chute is formed in the two ends of the outer wall of the first guide block, the first guide post is connected in the first guide chute in a sliding mode, and a first positioning block is connected inside the first groove in a sliding mode; The cross rod is arranged at the three top parts of the movable rod and comprises a bottom cover, and a top cover is arranged at the top part of the bottom cover; The control structure is arranged inside the cross rod and comprises a button which is connected to the bottom of the bottom cover in a sliding mode, V-shaped guide blocks are fixedly connected to the two ends of the top of the inner wall of the button, moving rods are arranged at the two ends of the inside of the cross rod, U-shaped blocks are arranged at the opposite ends of the moving rods, guide inclined planes are arranged at the bottoms of the two ends of the U-shaped blocks, the guide inclined planes are matched with the V-shaped guide blocks, and springs III are fixedly connected between the middle of the inner wall of the button and the top cover. Further, the tops of the fixed rod, the movable rod I and the movable rod II are respectively provided with a positioning sleeve. Further, the rectangular sliding groove is communicated with the inside of the first groove, a positioning hole is formed in one end of the inner wall of the first groove, a second groove is formed in the bottom of the first positioning block, a positioning rod is inserted into one end of the second inner wall of the groove, the positioning rod is slidably connected in the positioning hole, a pressing plate is fixedly connected to one end of the positioning rod, which is located in the second groove, a first spring is fixedly connected between the inner wall of the first groove and the first positioning block, a second s