CN221082974U - Three-section suitcase pull rod - Google Patents

Abstract

The application relates to a three-section luggage pull rod which comprises two bottom pipes, mounting seats arranged at the tops of the two bottom pipes, first slide pipes respectively sliding in the two bottom pipes along the vertical direction, two second slide pipes respectively sliding in the two first slide pipes along the vertical direction, and handles arranged at the tops of the two second slide pipes. The application can firmly limit the handle in the accommodating groove, thereby effectively solving the technical problem that the handle can be automatically separated in the case and bag carrying process.

Description

Three-section suitcase pull rod

Technical Field

The utility model relates to the field of suitcase pull rods, in particular to a three-section suitcase pull rod.

Background

The Chinese patent publication No. CN218073871U discloses a multifunctional luggage pull rod, which comprises a fixed frame and a movable frame movably assembled on the fixed frame, wherein the top of the movable frame is provided with a transverse handle.

In people's daily life, all need use case and bag all need go on a long journey, consequently on the way or frequent transport case and bag of taking, but the handle and the activity of above-mentioned technique case and bag pull rod can deviate from in the mount in the transport process of taking of case and bag perhaps automatically to influence the transport of case and bag.

Disclosure of utility model

The application provides a three-section luggage pull rod, which aims to solve the technical problem that a handle can automatically separate in the luggage carrying process.

The application provides a three-section luggage pull rod which adopts the following technical scheme:

The utility model provides a three section case and bag pull rod, includes two bottom pipes, locates the mount pad at two bottom pipe tops, slides respectively at the intraductal first slide pipe of two bottom along vertical direction, slides respectively at the intraductal two second slide pipes of two first slide along vertical direction, locates the handle on two second slide pipe tops, two the second slide pipe bottom all is equipped with first slip table, two first spout has all been seted up along the horizontal direction on a slip table side, slide along the depth direction of first spout in the first spout and be connected with first inserted block, set up the first jack that runs through first slide pipe on the intraductal wall of first slide, first jack is just to first spout seting up, set up the second jack that runs through the bottom pipe on the intraductal wall of bottom, two the second jack is just setting up each other, the mount pad top surface has been seted up and is used for holding the hold tank of handle, be equipped with the control portion that is used for controlling first inserted block to slide, work as the control portion control first inserted block keeps away from first jack and stretches out first jack and bottom pipe bottom wall and second jack are located the hold down.

Through adopting above-mentioned technical scheme, when case and bag do not use, the user places the handle in the holding tank, uses the first inserted block of control portion drive to remove simultaneously for keep away from the one end of first spout diapire with first inserted block and stretch out the bottom tube, thereby restrict the second slide tube, thereby make the handle by firmly restriction in the holding tank, thereby effectually solve the technical problem that the handle can deviate from automatically in the case and bag handling.

Preferably, the control portion includes two first springs and unblock subassembly, two springs correspond two first inserts respectively, the one end of first spring is inconsistent with the diapire of first spout, the other end is inconsistent with first insert, unblock subassembly is used for controlling that first insert slides towards the direction that is close to first spout diapire, and when the handle is located the holding tank and first spring does not receive the exogenic action, the one end that first insert kept away from first spout diapire passes first jack, second jack and stretches out the bottom tube.

Through adopting above-mentioned technical scheme, in case and bag handling, when need not use the handle, only need press down the handle for second slide pipe is retracted into first slide pipe, first slide pipe is retracted into the bottom tube, when the handle position is pressed to the holding tank completely in, first jack can just to the second jack, first spring can promote first inserted block and remove and make the one end that first spring was kept away from to first inserted block pass first jack, second jack and stretch out the bottom tube, thereby restrict the handle in the holding tank. When the handle is needed to be used again, the handle can be pulled out of the accommodating groove for use only by controlling the first insert block to slide in the direction close to the bottom wall of the first sliding groove by using the unlocking component so that the first insert block is retracted into the first sliding groove, and meanwhile, the first spring can be compressed and contracted by the retraction of the first insert block.

Preferably, the handle is internally provided with a holding groove, the unlocking component comprises a button arranged in the holding groove, a second spring arranged below the button, two first push rods arranged in the holding groove, two second push rods matched with the two first push rods, and two first push blocks respectively arranged at the bottom ends of the two second push rods, wherein the button is arranged on the handle in sliding connection along the vertical direction, one end of the second spring is in contact with the bottom surface of the button, the other end of the second spring is in contact with the bottom of the holding groove, the two first push rods are in sliding connection in the holding groove along the horizontal direction, the two sides of the button are respectively provided with a first inclined surface, the distance between the top ends of the first inclined surfaces of the two sides is gradually reduced, the two first push rods are relatively arranged at the two sides of the button and are respectively in contact with the first inclined surfaces, the top ends of the two second push rods are positioned in the accommodating groove, the bottom ends of the two second push rods are positioned in the second slide tube, the top ends of the two second push rods are provided with second inclined planes, the distance between the top ends of the second inclined planes and the bottom of the second inclined planes is gradually enlarged, the two second inclined planes are respectively abutted with one end of the two first push rods, which is far away from the button, of the two first push rods, the top ends of the two first push rods are provided with first matching grooves for the two push rods to extend into, the bottom ends of the two first push rods penetrate through the two first sliding tables and extend into the first matching grooves, one side, which is far away from the first sliding groove, of the bottom ends of the first push rods is provided with third inclined planes, the distance from the top ends of the third inclined planes to the bottom ends of the first sliding groove is gradually reduced, the side walls, which are close to the second springs, of the two first matching grooves are always attached to the third inclined planes, when no external force acts, the top of the second spring pushing button extends out of the placing groove.

Through adopting above-mentioned technical scheme, when needs use the pull rod, press the button at first for two first push rods are kept away from button direction and are removed, can drive the second push rod respectively towards first slip table slip when two first push rods remove, thereby promote first inserted block and stretch into first cooperation groove. Along with the first inserting block gradually extending into the first matching groove, the first inserting block can retract into the first sliding groove, and the handle can be pulled out of the accommodating groove for use. The first sliding groove is not right opposite to the first jack in the pulling process of the handle, so that the first spring can be always in a compressed state, after the handle is not needed to be used, the handle is pressed back into the accommodating groove again, when the first sliding groove is right opposite to the first jack, the first spring can push the first plug block to move, one end of the first plug block penetrates through the first jack and the second jack and stretches out of the bottom tube, and locking of the handle is completed.

Preferably, the mounting groove has all been seted up at two in the top of first push rod along vertical direction, be equipped with two fixed plates on the standing groove bottom surface, two the fixed plate all stretches into the mounting groove, all is equipped with the dead lever on the side of one side of two mounting grooves, two the axis direction of dead lever is the horizontal direction, still be equipped with two third springs in the standing groove, two on the one side lateral wall that the one end conflict mounting groove of third spring is close to the button, the other end is contradicted the fixed plate, two the axis perpendicular direction of third spring is on a parallel with the direction of motion of first push rod.

Through adopting above-mentioned technical scheme, when pressing the button, along with the removal third spring compression deformation of first push rod, when not pressing the button in the follow-up, the third spring can promote first push rod and remove, accomplishes the reset of first push rod, for unlocking again and prepare next time.

Preferably, two all be equipped with L type drag hook on the one end that first push rod is close to the second push rod, two the one end of L type drag hook is connected, the other end faces the button with first push rod, still be equipped with two stoppers on the inner wall of standing groove, two the stopper is located two L type drag hooks respectively and is close to one side of button, has all offered the spacing groove that supplies the drag hook to stretch into on two stoppers, does not have the exogenic action, two L type drag hook faces one section of button and stretches into two spacing grooves respectively.

Through adopting above-mentioned technical scheme, the setting of L type drag hook and the setting of stopper can assist first inserted block to limit the handle in the holding tank, also correctly guide the direction of motion of first horizontal pole simultaneously, guarantee the accuracy of unblock.

Preferably, the second sliding tube is internally provided with a fourth spring, the first pushing block comprises a push rod and a round table arranged on the push rod, the diameter of the round table is larger than that of the push rod, the third inclined surface is arranged on the push rod, the fourth spring is sleeved outside the push rod, one end of the fourth spring is abutted against the bottom surface of the round table, the other end of the fourth spring is abutted against the top surface of the first sliding table, one end of the push rod extending into the first sliding table is further provided with an anti-falling block, an anti-falling groove is formed in the first sliding table along the vertical direction, and the anti-falling block is connected in the anti-falling groove in a sliding manner along the vertical direction.

Through adopting above-mentioned technical scheme, can automatic re-setting when the setting of fourth spring makes first ejector pad not pressurized to guarantee the accuracy of action next time, also assist first spring drive first inserted block to a certain extent simultaneously and remove. The setting of anticreep piece and anti-supporting groove is then effectual avoiding first ejector pad to deviate from the second slip table, also directs the direction of motion of first ejector pad simultaneously.

Preferably, third jacks for the first plug blocks to be inserted are formed in the tops of the two first slide pipes, and the third jacks penetrate through the first slide pipes.

Through adopting above-mentioned technical scheme, along with the motion of handle, first slip table and follow the first slip pipe of second slip pipe gradual slip department, when the displacement is to certain position, the notch of first spout can just to the third jack, and first spring can promote first jack and stretch out in first spout can the third jack of jack this moment, follow the continuation removal of second slip pipe afterwards, and the inserted block can take this first slip pipe to remove, makes it stretch out the bottom tube gradually.

Preferably, a second push block is arranged below the two first slide tables, a second slide table is arranged at the bottom of the two first slide pipes, a second slide groove is arranged on one side surface of the two second slide tables along the horizontal direction, a second insert block is connected in the two second slide grooves in a sliding manner along the horizontal direction, a fifth spring is arranged in the two second slide grooves, the two fifth springs respectively correspond to the two second insert blocks, one end of each fifth spring is abutted against the bottom wall of the second slide groove, the other end is abutted against the second push block, a second matching groove for the insert block to extend into is formed at the top of each second insert block, the bottom ends of the two second insert blocks penetrate through the two second slide tables and extend into the second matching groove, a fourth inclined surface is formed on one side of the bottom ends of the two second insert blocks away from the second slide groove, the distance from the top of the fourth inclined plane to the notch of the second chute to the distance from the bottom of the fourth inclined plane to the notch of the second chute is gradually reduced, the two side walls of the second matching grooves close to one side of the fifth spring are always attached to the fourth inclined plane, the two bottom pipe tops are provided with fourth jacks for the second insertion block to be inserted, the two bottom pipes are all penetrated through by the two fourth jacks, limiting seats are arranged inside the bottom pipes, when one end of the first insertion block, far away from the bottom wall of the first chute, passes through the first jack, the second jack and stretches out of the bottom pipe, the second sliding table is in butt joint with the limiting seats, the first sliding table abuts against the second sliding block, the second sliding block stretches into the second matching grooves to enable the second insertion block to be located in the second chute, and the fifth spring is in a compressed state.

Through adopting above-mentioned technical scheme, when first jack, second jack are passed and are stretched out the bottom tube to the one end that first sliding groove diapire was kept away from to first jack, because the existence of spacing seat second slip table can not move down any more, thereby first slip table can support the second ejector pad and press so that the second jack is located the spout and make the compression of fifth spring. When the pull rod is needed to be used subsequently, the button is pressed first and the handle is pulled, so that when the first sliding tube drives the first sliding table to move, the first sliding table does not push the second inserting block any more, at the moment, the fifth spring can push the second inserting block to move until the second inserting block abuts against the inner wall of the bottom tube, the second sliding tube can be pulled by the handle to slide in the process of pulling, the first inserting block is gradually close to and finally inserted into the third inserting hole, then the first sliding tube can be driven to slide by the first inserting block along with the continued movement of the second sliding tube, the second sliding table also can move, when the notch of the second sliding groove moves to be opposite to the fourth inserting hole, at the moment, one end of the second inserting block can be pushed by the fifth spring to penetrate through the fourth inserting hole and extend out of the bottom tube, and therefore the extension of the three-section pull rod is completed.

Preferably, the limiting seat comprises a base and an elastic piece arranged on the base, when one end of the first insertion block, which is far away from the bottom wall of the first sliding groove, passes through the first insertion hole and the second insertion hole and stretches out of the bottom pipe, the second sliding table is abutted against the elastic piece, and the elastic piece is in a compression state.

Through adopting above-mentioned technical scheme, use this to press the button and make first inserted block retract into in the first spout, release the locking to the handle, the elastic component can reset simultaneously and drive the handle and shift one end distance up, stretches out from the accommodation groove, and the person of facilitating the use grips the use handle.

Preferably, the elastic component includes locating the pressure-bearing platform on the base, locating the sixth spring between pressure-bearing platform and the base, the pressure-bearing platform slides along vertical direction and connects in the bottom tube, the one end of sixth spring is inconsistent with the bottom surface of pressure-bearing platform, the other end is inconsistent with the top surface of base, when the one end that first inserted block kept away from first spout diapire passes first jack, second jack and stretches out the bottom tube, the sixth spring is in compression.

By adopting the technical scheme, the ejection of the handle is completed through deformation compression of the sixth spring.

The technical effects of the utility model are mainly as follows:

1. According to the utility model, the handle is firmly limited in the accommodating groove by the cooperation of the button, the first push rod and the like, so that the technical problem that the handle can be automatically separated in the case and bag carrying process is effectively solved;

2. According to the utility model, the first push block can automatically reset when not being pressed through the arrangement of the fourth spring, so that the accuracy of the next action is ensured, and the first spring is assisted to drive the first plug block to move to a certain extent. The arrangement of the anti-falling block and the anti-supporting groove effectively prevents the first push block from falling out of the second sliding table, and simultaneously guides the movement direction of the first push block;

3. According to the utility model, the sixth spring, the pressure-bearing table and the base are arranged, so that the release handle can be automatically ejected from the accommodating groove, and a user can conveniently hold the release handle.

Drawings

Fig. 1 is a schematic structural view of the present embodiment.

Fig. 2 is a cross-sectional view taken along line A-A in fig. 1.

Fig. 3 is a partial cross-sectional view taken along line B-B in fig. 1.

Fig. 4 is a partial cross-sectional view taken along line C-C in fig. 1.

Fig. 5 is a partial enlarged view at D in fig. 2.

FIG. 6 is an enlarged partial view at E in FIG. 2

Reference numerals: 1. a bottom tube; 11. a second jack; 12. a fourth jack; 2. a mounting base; 21. a receiving groove; 22. a limiting block; 221. a limit groove; 3. a first slide tube; 31. a first jack; 32. a third jack; 4. a second slide tube; 41. a first sliding table; 411. a first chute; 412. an anti-drop groove; 42. a first plug; 421. a first mating groove; 43. a fourth spring; 5. a handle; 51. a placement groove; 52. a fixing plate; 6. a control unit; 61. a first spring; 62. unlocking the assembly; 621. a button; 6211. a first inclined surface; 622. a second spring; 623. a first push rod; 6231. a mounting groove; 6232. a fixed rod; 6233. a third spring; 6234. an L-shaped drag hook; 624. a second push rod; 6241. a second inclined surface; 625. a first push block; 6251. round bench; 6252. a push rod; 6253. a third inclined surface; 6254. an anti-falling block; 7. a second push block; 71. a fourth inclined surface; 8. a second sliding table; 81. a second chute; 82. a second insert block; 821. a second mating groove; 83. a fifth spring; 9. a limit seat; 91. a base; 92. an elastic member; 921. a pressure-bearing table; 922. and a sixth spring.

Detailed Description

The present application will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present application can be more easily understood and grasped.

The embodiment of the application discloses a three-section suitcase pull rod.

Referring to fig. 1, 2, 5 and 6, the three-section luggage pull rod of the present embodiment includes two bottom pipes 1, a mounting seat 2 provided at the top of the two bottom pipes 1, a first slide pipe 3 sliding in the two bottom pipes 1 respectively in the vertical direction, two second slide pipes 4 sliding in the first slide pipe 3 respectively in the vertical direction, and a handle 5 fixed at the top ends of the two second slide pipes 4. The bottom ends of the two second sliding pipes 4 are provided with first sliding tables 41, a side surface of each of the two first sliding tables 41 is provided with a first sliding groove 411 along the horizontal direction, a first inserting block 42 is connected in the first sliding groove 411 in a sliding manner along the depth direction of the first sliding groove 411, the inner wall of the bottom of the first sliding pipe 3 is provided with a first inserting hole 31 and a third inserting hole 32 penetrating through the first sliding pipe 3, the first inserting hole 31 is located at the bottom of the first sliding pipe 3, and the third inserting hole 32 is located at the top of the first inserting pipe. The first jack 31 is arranged right opposite to the first chute 411, the inner wall of the bottom pipe 1 is provided with a second jack 11 penetrating through the bottom pipe 1, the two second jacks 11 are arranged right opposite to each other, the top surface of the mounting seat 2 is provided with a containing groove 21 for containing the handle 5, the handle 5 is provided with a control part 6 for controlling the first plug 42 to slide, when the control part 6 controls one end of the first plug 42 far away from the bottom wall of the first chute 411 to penetrate through the first jack 31 and the second jack 11 and stretch out of the bottom pipe 1, and the handle 5 is positioned in the containing groove 21.

Referring to fig. 1, 2, 3 and 5, a placement groove 51 for accommodating the control part 6 is formed in the handle 5, the control part 6 includes two first springs 61 and an unlocking component 62, the unlocking component 62 includes a button 621 disposed in the placement groove 51, a second spring 622 disposed below the button 621, two first push rods 623 disposed in the placement groove 51, two second push rods 624 matched with the two first push rods 623, and two first push blocks 625 disposed at bottom ends of the two second push rods 624 respectively. Wherein the button 621 is slidably connected to the handle 5 along the vertical direction, the two first push rods 623 are slidably connected to the placement groove 51 along the horizontal direction, the two sides of the button 621 are provided with first inclined surfaces 6211, the distance between the top ends of the first inclined surfaces 6211 on two sides and the distance between the bottom ends of the first inclined surfaces 6211 on two sides are gradually reduced, the two first push rods 623 are oppositely arranged on the two sides of the button 621 and respectively abut against the first inclined surfaces 6211, the top ends of the two second push rods 624 are positioned in the accommodating groove 21, the bottom ends of the two second push rods 624 are positioned in the second slide tube 4, the top ends of the two second push rods 624 are respectively provided with a second inclined surface 6241, the distance between the top ends of the second inclined surfaces 6241 on two sides and the bottom of the second inclined surfaces 6241 on two sides is gradually enlarged, the two second inclined surfaces 6241 are respectively abutted with one end, away from the button 621, of the two first push rods 623, first matching grooves 421 for the two push rods to extend into are formed in the top of each of the two first inserting blocks 42, the bottom ends of the two first push blocks 625 penetrate through the two first sliding tables 41 and extend into the first matching grooves 421, third inclined surfaces 6253 are formed in one sides, away from the notch of the first sliding groove 411, of the bottom ends of the two first push blocks 625, the distance from the top ends of the third inclined surfaces 6253 to the notch of the first sliding groove 411 is gradually reduced, and the distance from the bottom ends of the third inclined surfaces 6253 to the notch of the first sliding groove 411 is gradually reduced, and the side walls, close to the second springs 622, of the two first matching grooves 421 are always attached to the third inclined surfaces 6253. One end of the second spring 622 is abutted against the bottom surface of the button 621, and the other end is abutted against the bottom of the placement groove 51, and when no external force acts, the second spring 622 pushes the top of the button 621 to extend out of the placement groove 51.

Referring to fig. 1 and 4, the top of the two first push rods 623 is provided with mounting grooves 6231 along the vertical direction, two fixing plates 52 are fixedly connected to the bottom surface of the accommodating groove 21, the two fixing plates 52 extend into the mounting seat 2, fixing rods 6232 are fixedly connected to the side surface of one side of the two mounting grooves 6231 facing the button 621, the axial direction of the two fixing rods 6232 is the horizontal direction, two third springs 6233 are further arranged in the accommodating groove 51, one ends of the two third springs 6233 are abutted against the side wall of one side, close to the button 621, of the mounting groove 6231, the other ends are abutted against the fixing plates 52, and the vertical direction of the axial direction of the two third springs 6233 is parallel to the moving direction of the first push rods 623. Two the first push rod 623 is close to the one end of second push rod 624 on all fixedly connected with L type drag hook 6234, two the one end of L type drag hook 6234 is connected with first push rod 623, the other end is towards button 621, fixedly connected with two stopper 22 on the diapire of holding tank 21, all offered the spacing groove 221 that supplies the drag hook to stretch into on two stopper 22, when handle 5 is located holding tank 21, two the top of stopper 22 stretches into standing groove 51, two stopper 22 are located two L type drag hooks 6234 respectively and are close to one side of button 621, two L type drag hook 6234 stretches into two spacing grooves 221 respectively towards one section of button 621.

Referring to fig. 1, 2 and 5, a fourth spring 43 is further disposed in the second sliding tube 4, the first pushing block 625 includes a push rod 6252 and a circular table 6251 fixedly connected to the push rod 6252, the diameter of the circular table 6251 is larger than that of the push rod 6252, a third inclined surface 6253 is disposed on the push rod 6252, the fourth spring 43 is sleeved outside the push rod 6252, one end of the fourth spring 43 abuts against the bottom surface of the circular table 6251, the other end abuts against the top surface of the first sliding table 41, an anti-falling block 6254 is further disposed at one end of the push rod 6252 extending into the first sliding table 41, an anti-falling groove 412 is disposed in the first sliding table 41 along the vertical direction, and the anti-falling block 6254 is slidingly connected in the anti-falling groove 412 along the vertical direction.

Referring to fig. 1, 2, 5 and 6, the second push blocks 7 are respectively arranged below the first sliding table 41, the second sliding tables 8 are respectively arranged below the two second push blocks 7, the limiting seats 9 are respectively arranged at the bottoms of the two second sliding tables 8, the two second sliding tables 8 are respectively and fixedly connected to the bottoms of the two first sliding pipes 3, and the two limiting seats 9 are respectively and fixedly connected to the bottoms of the bottom pipes 1. The second sliding grooves 81 are formed in the side faces of one side of the two second sliding tables 8 along the horizontal direction, the second sliding grooves 81 are connected with the second inserting blocks 82 in a sliding mode along the horizontal direction, fifth springs 83 are arranged in the two second sliding grooves 81, the two fifth springs 83 respectively correspond to the two second inserting blocks 82, one ends of the fifth springs 83 are abutted against the bottom wall of the second sliding grooves 81, the other ends of the fifth springs 83 are abutted against the second pushing blocks 7, second matching grooves 821 for the inserting blocks to extend in are formed in the tops of the two second inserting blocks 82, the bottoms of the two second pushing blocks 7 penetrate through the two second sliding tables 8 and extend into the second matching grooves 821, fourth inclined planes 71 are formed in the sides, far away from the notch of the second sliding grooves 81, of the bottoms of the two second pushing blocks 7, of the fourth inclined planes 71 are gradually reduced in the distance from the top of the notch of the fourth inclined planes 71 to the notch of the second sliding grooves 81, the side walls, close to one side walls of the fifth springs 83 are always attached to the fourth inclined planes 71, the bottoms of the two second matching grooves 821 are provided with the bottoms of the fourth inclined planes 1, the bottoms of the two second sliding blocks are provided with the first inserting grooves 12, and the bottoms of the two second inserting blocks 1 and the two second inserting blocks 12 are provided with the same opening and the first inserting grooves 12 and the same size, and the bottoms of the two second inserting blocks 12 are provided with the bottoms of the two first inserting blocks 12 and the two inserting blocks are provided with the two opposite opening to each with the bottom 1 and the bottom 12 and the bottom 11 and the two bottom jack. When one end of the first insert block 42 far away from the bottom wall of the first sliding groove 411 passes through the first jack 31 and the second jack 11 and extends out of the bottom pipe 1, the second sliding table 8 is abutted against the limiting seat 9, the first sliding table 41 abuts against the second push block 7, and the second push block 7 extends into the second matching groove 821 so that the second insert block 82 is located in the second sliding groove 81, and the fifth spring 83 is in a compressed state.

Referring to fig. 1, 2 and 5, the stopper seat 9 includes a base 91 and an elastic member 92 provided on the base 91, and the elastic member 92 includes a pressure-receiving table 921 provided on the base 91, and a sixth spring 922 provided between the pressure-receiving table 921 and the base 91. The pressure-bearing platform 921 is slidably connected in the bottom pipe 1 along the vertical direction, one end of the sixth spring 922 is in contact with the bottom surface of the pressure-bearing platform 921, the other end is in contact with the top surface of the base 91, and when one end of the first insert block 42, which is far from the bottom wall of the first chute 411, passes through the first insertion hole 31, the second insertion hole 11 and protrudes out of the bottom pipe 1, the sixth spring 922 is in a compressed state.

The following is the complete using steps of the three-section suitcase pull rod in the embodiment:

Referring to fig. 1 to 6, in an initial state, the handle 5 is positioned in the receiving groove 21, and the first insert 42 is pushed by the first spring 61 such that one end thereof passes through the first insertion hole 31, the second insertion hole 11 and protrudes out of the bottom pipe 1. When it is desired to pull the case using three case poles, the button 621 is first pressed, and the second spring 622 is compressed and contracted. When the button 621 is pressed, the first push rod 623 is displaced, so as to drive the third spring 6233 to compress and the L-shaped drag hook 6234 to be separated from the limiting groove 221, meanwhile, the second push rod 624 slides downwards, the second push rod 624 can abut against the round table 6251 in the sliding process, the fourth spring 43 is pressed and contracted, the ejector rod 6252 stretches into the first matching groove 421, so that the first insert block 42 slides into the first sliding groove 411, and the first spring 61 is pressed and contracted. Once the first insert 42 slides back out of the first receptacle 31, the sixth spring 922 is not pressed and springs back, so that the first slide tube 3 is pushed to slide by the bearing table 921, and the handle 5 is moved up by a distance, and extends out of the accommodating groove 21, so that a user can conveniently hold the handle 5. When the handle 5 is ejected from the accommodating groove 21, the connection member such as the button 621 is restored to the original state by the combined action of the first spring 61, the second spring 622, the third spring 6233, and the fourth spring 43. The first insert 42 will abut against the inner wall of the first sliding tube 3 under the action of the first spring 61, and the first sliding table 41 will not abut against the second insert 82, so that the fifth spring 83 will push the second insert 82 to slide until abutting against the inner wall of the bottom tube 1.

Then, the user pulls the handle 5 to drive the second sliding tube 4 to slide out of the first sliding tube 3, the first inserting block 42 is gradually close to and finally inserted into the third inserting hole 32 in the pulling process of the handle, then the first sliding tube 3 is driven to slide by the first inserting block 42 along with the continued movement of the second sliding tube 4, the second sliding table 8 also moves, when the notch of the second sliding groove 81 moves to be opposite to the fourth inserting hole 12, at the moment, one end of the second inserting block 82 is pushed by the fifth spring 83 to pass through the fourth inserting hole 12 and extend out of the bottom tube 1, so that the first sliding tube 3 does not move, and the extension of three sections of pull rods is completed.

When the subsequent pull rod is not used any more, the push button 621 is first pressed, so that the ejector rod 6252 stretches into the first matching groove 421 to enable the first plug block 42 to be separated from the third plug hole 32 and retract into the first sliding groove 411, and then the handle 5 is pressed to enable the second sliding tube 4 to slide into the first sliding tube 3. When the first sliding tube 3 slides to a certain position, the first sliding table 41 will collide with the second pushing block 7 and drive the second pushing block 7 to slide into the second matching groove 821, so that the second inserting block 82 is displaced to be separated from the fourth inserting hole 12, thereby driving the first sliding tube 3 to slide into the bottom tube 1, and simultaneously the first inserting hole 31 will be inserted into the first inserting hole 31. Along with the movement of the first slide tube 3, the second sliding table 8 contacts with the bearing table and drives the bearing table to move towards the base 91 so that the sixth spring 922 is compressed, finally when the first jack 31 is opposite to the second jack 11, the first plug 42 stretches out of the bottom tube 1 through the second jack 11 under the pushing of the first spring 61, so that the handle 5 returns to the accommodating groove 21 again, and the L-shaped drag hook 6234 stretches into the limiting groove 221 again. While the sixth spring 922 is compressed to contract in preparation for the next ejection of the handle 5 out of the receiving groove 21.

Of course, the above is only a typical example of the application, and other embodiments of the application are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the application claimed.

Claims (10)

1. The utility model provides a three-section case and bag pull rod, includes two bottom tube (1), locates mount pad (2) at two bottom tube (1) tops, slides respectively first slide tube (3) in two bottom tube (1) along vertical direction, slides respectively two second slide tube (4) in two first slide tube (3) along vertical direction, locates handle (5) on two second slide tube (4) tops, its characterized in that: two second slide pipe (4) bottom all is equipped with first slip table (41), two first slip table (41) are gone up along the horizontal direction on a side and all have been seted up first spout (411), be connected with first inserted block (42) along the degree of depth direction slip of first spout (411) in first spout (411), first jack (31) that runs through first slide pipe (3) have been seted up on first slide pipe (3) bottom inner wall, first jack (31) are just offered to first spout (411), offer second jack (11) that run through end pipe (1) on end pipe (1) bottom inner wall, two second jack (11) are just set up each other, holding tank (21) that are used for holding handle (5) have been seted up to mount pad (2) top surface, be equipped with on handle (5) and be used for controlling first inserted block (42) first jack (31) are kept away from first spout (411) and first jack (31) and second jack (11) are located holding tank (1) that stretch out.

2. A three-section luggage pull rod according to claim 1, wherein: the control part (6) comprises two first springs (61) and an unlocking component (62), the two springs respectively correspond to the two first inserting blocks (42), one end of the first springs (61) is in conflict with the bottom wall of the first sliding groove (411), the other end of the first springs is in conflict with the first inserting blocks (42), the unlocking component (62) is used for controlling the first inserting blocks (42) to slide towards the direction close to the bottom wall of the first sliding groove (411), and when the handle (5) is located in the containing groove (21) and the first springs (61) are not acted by external force, one end, far away from the bottom wall of the first sliding groove (411), of the first inserting blocks (42) penetrates through the first inserting holes (31), the second inserting holes (11) and stretches out of the bottom pipe (1).

3. A three-section luggage pull rod as claimed in claim 2, wherein: the utility model discloses a handle (5) is inside to be offered holding tank (51), unblock subassembly (62) including locating button (621) in holding tank (51), locate second spring (622) of button (621) below, locate two first push rods (623) in holding tank (51), with two first push rods (623) matched with two second push rods (624), locate two first push blocks (625) of two second push rods (624) bottom respectively, on button (621) slide handle (5) of being connected along vertical direction, second spring (622) one end is inconsistent with button (621) bottom surface, the other end is inconsistent with the bottom of holding tank (51), two first push rods (623) slide along the horizontal direction and connect in holding tank (51), first inclined plane (6211) are all offered to the both sides of button (621), and two sides distance between first inclined plane (6211) top is reduced to the distance between two first inclined plane (6211) bottom, two second push rods (624) are located two opposite sides of push rod (624) and are located two inclined plane (624) top opposite to each other side, two push rods (623) are located two opposite side top (6241) and hold two push rods (21), the distance between the tops of the second inclined planes (6241) and the distance between the bottoms of the second inclined planes (6241) are gradually increased, the distance between the bottoms of the second inclined planes (6241) and the bottoms of the first inclined planes (6241) are respectively abutted with two ends of the first push rods (623) away from the button (621), first matching grooves (421) for the two push rods to extend in are formed in the tops of the first insertion blocks (42), the bottoms of the first push blocks (625) penetrate through the two first sliding tables (41) and extend into the first matching grooves (421), third inclined planes (6253) are formed in one sides, far away from the notch of the first sliding grooves (411), of the bottoms of the first push blocks (625), the distance from the tops of the third inclined planes (6253) to the notch of the first sliding grooves (411) is gradually reduced, the side walls of the two first matching grooves (421) close to the second springs (622) are always attached to the side walls of the third inclined planes (6253), and no external force acts on the tops of the second inclined planes (411).

4. A three-section luggage pull rod as claimed in claim 3, wherein: two mounting grooves (6231) are formed in the top of the first push rod (623) in the vertical direction, two fixing plates (52) are arranged on the bottom surface of the placing groove (51), the two fixing plates (52) extend into the mounting grooves (6231), fixing rods (6232) are arranged on one side surface of the two mounting grooves (6231), the axial direction of the fixing rods (6232) is the horizontal direction, two third springs (6233) are further arranged in the placing groove (51), one ends of the third springs (6233) are abutted against the side wall, close to the button (621), of the mounting grooves (6231), the other ends of the third springs are abutted against the fixing plates (52), and the axial vertical direction of the two third springs (6233) is parallel to the moving direction of the first push rod (623).

5. A three-section luggage pull rod as claimed in claim 3, wherein: two all be equipped with L type drag hook (6234) on the one end that first push rod (623) is close to second push rod (624), two the one end of L type drag hook (6234) is connected with first push rod (623), the other end is towards button (621), still be equipped with two stopper (22) on the diapire of holding tank (21), all seted up on two stopper (22) and supplied spacing groove (221) that the drag hook stretched into, when handle (5) are located holding tank (21), two in the roof of stopper (22) stretches into standing groove (51), two stopper (22) are located one side that two L type drag hooks (6234) are close to button (621) respectively, two L type drag hook (6234) stretch into two spacing grooves (221) respectively towards one section of button (621).

6. A three-section luggage pull rod as claimed in claim 3, wherein: still be equipped with fourth spring (43) in second slide pipe (4), first ejector pad (625) include ejector pin (6252) and locate round platform (6251) on ejector pin (6252), the diameter of round platform (6251) is greater than the diameter of ejector pin (6252), third inclined plane (6253) are seted up on ejector pin (6252), fourth spring (43) cover is established in ejector pin (6252) outside, the bottom surface of the one end conflict round platform (6251) of fourth spring (43), the top surface of the other end conflict first slip table (41), still be equipped with anticreep piece (6254) on the one end that ejector pin (6252) stretched into first slip table (41), anticreep groove (412) have been seted up along vertical direction in first slip table (41), anticreep piece (6254) are connected in anticreep groove (412) along vertical direction slip.

7. A three-section luggage pull rod as claimed in claim 2, wherein: third jacks (32) for the first inserting blocks (42) to be inserted are formed in the tops of the two first sliding pipes (3), and the third jacks (32) penetrate through the first sliding pipes (3).

8. A three-section luggage pull rod as claimed in claim 7, wherein: the two sliding tables (41) are provided with second pushing blocks (7) below, the bottoms of the two first sliding pipes (3) are provided with second sliding tables (8), the two sliding tables (8) are provided with second sliding grooves (81) along the horizontal direction on one side surface of each second sliding table (8), second inserting blocks (82) are connected in the second sliding grooves (81) in a sliding manner along the horizontal direction, fifth springs (83) are arranged in the second sliding grooves (81), the two fifth springs (83) respectively correspond to the two second inserting blocks (82), one end of each fifth spring (83) is abutted against the bottom wall of each second sliding groove (81) and the other end is abutted against the corresponding second sliding block (7), the tops of the two second sliding blocks (82) are provided with second matching grooves (821) for the insertion of the blocks to extend into, the bottoms of the two second sliding tables (8) are penetrated through the bottoms of the two second sliding tables (81) and extend into the second matching grooves (821), the bottoms of the two fifth springs (83) are respectively abutted against the bottom surfaces of the second sliding tables (81), the bottoms of the two sliding tables (71) are respectively close to the bottoms of the second sliding tables (71) and are respectively matched with the bottoms of the fourth sliding grooves (71), two fourth jacks (12) for inserting second inserting blocks (82) are formed in the tops of the bottom pipes (1), the two fourth jacks (12) penetrate through the bottom pipes (1), limiting seats (9) are formed in the bottom pipes (1), when one ends of the first inserting blocks (42) away from the bottom wall of the first sliding groove (411) penetrate through the first jacks (31), the second inserting holes (11) and extend out of the bottom pipes (1), the second sliding tables (8) are abutted to the limiting seats (9), the first sliding tables (41) are abutted to the second pushing blocks (7), the second pushing blocks (7) extend into the second matching grooves (821) to enable the second inserting blocks (82) to be located in the second sliding groove (81), and the fifth springs (83) are in a compressed state.

9. A three-section luggage pull rod as claimed in claim 8, wherein: the limiting seat (9) comprises a base (91) and an elastic piece (92) arranged on the base (91), when one end of the first insertion block (42) away from the bottom wall of the first sliding groove (411) penetrates through the first insertion hole (31), the second insertion hole (11) and stretches out of the bottom pipe (1), the second sliding table (8) is abutted against the elastic piece (92), and the elastic piece (92) is in a compressed state.

10. A three-section luggage pull rod as claimed in claim 9, wherein: the elastic element (92) is including locating pressure-bearing platform (921) on base (91), locating sixth spring (922) between pressure-bearing platform (921) and base (91), pressure-bearing platform (921) slide along vertical direction and connect in end pipe (1), the one end of sixth spring (922) is inconsistent with the bottom surface of pressure-bearing platform (921), and the other end is inconsistent with the top surface of base (91), and when one end that first inserted block (42) kept away from first spout (411) diapire passed first jack (31), second jack (11) and stretched out end pipe (1), sixth spring (922) are in compression.