CN113520002A

CN113520002A - Telescopic suitcase

Info

Publication number: CN113520002A
Application number: CN202110866363.3A
Authority: CN
Inventors: 张效益; 金星攀; 丁一凡
Original assignee: Xiamen Weilv Technology Co ltd
Current assignee: Xiamen Weilv Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-10-22

Abstract

The invention discloses a telescopic luggage case which comprises a case body fixing pipe, a case body moving pipe, a telescopic rod, an upper case body and a lower case body; the lower end of the upper box body is sleeved outside the lower box body, and the capacity of the luggage case is adjusted by changing the relative position of the upper box body and the lower box body; the upper end of the box body moving pipe is fixedly connected with the upper box body, and the lower end of the box body moving pipe is provided with a first locking piece; the box body fixing pipe is fixedly connected with the lower box body, the lower end of the box body moving pipe is sleeved in the box body fixing pipe, and the box body moving pipe is locked on the box body fixing pipe through a first locking piece; the bottom of the lower box body is provided with a pulley for moving the luggage case; the telescopic rod is arranged at the upper end of the box body moving pipe and pushes and pulls the luggage case through the telescopic rod; according to the invention, the relative length of the box body fixing pipe and the box body moving pipe is adjusted through the first locking piece, the capacity of the luggage case can be quickly adjusted, and the luggage case can be pushed and pulled through the telescopic rod, so that the flexibility is good, and the use is convenient.

Description

Telescopic suitcase

Technical Field

The invention relates to the technical field of luggage cases, in particular to a telescopic luggage case.

Background

Luggage, also known as traveling case and trolley case, is a case that is carried when going out for placing articles, which is one type of luggage. Usually, the luggage case is used for placing clothes, personal care products and souvenirs required by the journey. The size of the luggage case on the market is generally specified as a standard according to the sizes of a carry-on case and a consignment case of an airline company, the size of the use space inside the case body is fixed, the storage space inside the case cannot be changed according to actual needs, and the luggage case is poor in flexibility and inconvenient to use. In order to meet the requirement of people on the capacity of the luggage case, the luggage case which is telescopic along the height direction is produced, and the use requirement of the telescopic luggage case cannot be met by the conventional luggage case pull rod.

Disclosure of Invention

The invention aims to provide a telescopic luggage case, which can adjust the relative length of a case body fixing pipe and a case body moving pipe through a first locking piece according to the actual telescopic height of the luggage case, can quickly adjust the capacity of the luggage case, can push and pull the luggage case through a telescopic rod, and has good flexibility and convenient use.

In order to achieve the purpose, the invention adopts the following technical scheme:

a telescopic luggage case comprises a case body fixing pipe, a case body moving pipe, a telescopic rod, an upper case body and a lower case body; the lower end of the upper box body is sleeved outside the lower box body, and the capacity of the luggage case is adjusted by changing the relative position of the upper box body and the lower box body; the upper end of the box body moving pipe is fixedly connected with the upper box body, and the lower end of the box body moving pipe is provided with a first locking piece; the box body fixing pipe is fixedly connected with the lower box body, the lower end of the box body moving pipe is sleeved in the box body fixing pipe, and the box body moving pipe is locked on the box body fixing pipe through a first locking piece; the bottom of the lower box body is provided with a pulley for moving the luggage case; the telescopic link sets up in the box removes the pipe upper end, through telescopic link push-and-pull suitcase.

Furthermore, the upper box body comprises an upper cavity and an upper cavity cover which are oppositely arranged; an upper locking piece is arranged between the upper cavity and the upper cavity cover, and the upper cavity cover are detachably connected together through the upper locking piece; the lower box body comprises a lower containing cavity and a lower containing cover which are oppositely arranged; lower locking piece is provided with between appearance chamber and the lower lid of holding down, holds the chamber and holds down the lid and can dismantle the connection together through lower locking piece.

Furthermore, an upper limiting strip is fixed at the lower end of the upper box body and extends towards the upper end of the inner side of the upper box body; the lower limiting strip is fixed at the upper end of the lower box body and extends towards the lower end of the outer side of the lower box body; the upper limit strip is embedded into a gap between the lower limit strip and the lower box body from bottom to top, the lower limit strip is embedded into a gap between the upper limit strip and the upper box body from top to bottom, and the maximum stretching length of the upper box body and the maximum stretching length of the lower box body are limited through the upper limit strip and the lower limit strip.

Furthermore, the first locking piece comprises a first seat body, a plurality of first locking pins, a first spring and a first thrust piece; the first seat body is fixedly arranged at the lower end of the box body moving pipe; a plurality of first locking holes are formed in the box body fixing pipe at intervals from top to bottom; the first lock pin and the first spring are arranged in the first seat body, one end of the first lock pin is connected with the first spring, and the other end of the first lock pin is embedded into the first locking hole; the first thrust piece is arranged on the first seat body, and the first lock pin is driven to retract into the first seat body through the first thrust piece.

Further, the telescopic rod comprises a push-pull fixed pipe and a push-pull movable pipe; the push-pull fixed pipe is sleeved in the box body moving pipe, and the lower end of the push-pull fixed pipe is fixed on one side of the upper end of the first seat body; the lower end of the push-pull movable pipe is provided with a second locking piece; the lower end of the push-pull movable pipe is sleeved in the push-pull fixed pipe, and the push-pull movable pipe is locked on the push-pull fixed pipe through the second locking piece.

Further, the second locking member includes a second seat, a second lock pin, a second spring and a second thrust member; the second seat body is fixedly arranged at the lower end of the box body moving pipe; a plurality of second locking holes are formed in the push-pull fixing pipe at intervals from top to bottom; the second lock pin and the second spring are arranged in the second seat body, one end of the second lock pin is connected with the second spring, and the other end of the second lock pin is embedded into the second locking hole; the second thrust piece is arranged on the second seat body, and the second lock pin is driven to retract into the second seat body through the second thrust piece.

Furthermore, the number of the first lock pins is two, and the two first lock pins are oppositely arranged on two sides of the first seat body; the end parts of the first springs are respectively fixedly connected with the inner ends of the two first lock pins; a first inclined groove is formed in the upper end of the first lock pin; the first thrust piece is arranged on the first seat body in a sliding mode, and a first inclined convex part is arranged at the lower end of the first thrust piece; a first connecting rod is fixed at the upper end of the first thrust piece; the first connecting rod is located outside the push-pull fixed pipe, the upper end of the first connecting rod extends out of the box body moving pipe, and the first inclined convex portion is driven by pressing down the first connecting rod to drive the first inclined groove to move inwards so that the first lock pin retracts into the first seat body.

Furthermore, one end of the second spring is fixedly connected with the inner end of the second lock pin, and the other end of the second spring is fixedly connected with the second seat body; a second chute is arranged at the upper end of the second lock pin; the second thrust piece is arranged on the second seat body in a sliding mode, and a second inclined convex part is arranged at the lower end of the second thrust piece; a second connecting rod is fixed at the upper end of the second thrust piece; the upper end of the second connecting rod extends out of the push-pull moving pipe, and the second connecting rod is pressed downwards to drive the second inclined convex part to drive the second inclined groove to move inwards so that the second lock pin retracts into the second seat body.

Furthermore, the box body fixing pipe, the box body moving pipe and the telescopic rod are oppositely arranged on the left and right sides; a mounting seat is fixed between the upper ends of the two box body moving pipes, and a handle is fixed between the upper ends of the two push-pull moving pipes; the mounting seat is provided with a first driving piece, and two first connecting rods which are arranged oppositely are pressed downwards through the first driving piece; the handle is provided with a second driving piece, and two oppositely arranged second connecting rods are pressed downwards through the second driving piece.

Furthermore, the first driving member comprises a first driving key and two first driving rods respectively arranged at the side edges of the first driving key; the two ends of the first driving rod are inclined planes, and the first driving rod is arranged on the mounting seat in a sliding manner; the first driving key is pressed down to push the two first driving rods to move outwards so as to press down the first connecting rod; a first driving spring is arranged in the first driving rod, and two ends of the first driving spring are respectively connected with the first driving rod and the mounting seat to enable the first driving rod to move inwards and reset; the second driving piece comprises a second driving key and two second driving rods which are respectively arranged on the side edges of the second driving key; the two ends of the second driving rod are inclined planes, and the second driving rod is arranged on the handle in a sliding manner; the second driving key is pressed down to push the two second driving rods to move outwards so as to press down the second connecting rod; and a second driving spring is arranged in the second driving rod, and two ends of the second driving spring are respectively connected with the second driving rod and the handle to enable the second driving rod to move inwards and reset.

After the technical scheme is adopted, the invention has the following beneficial effects:

1. according to the telescopic luggage case, the relative length of the case body fixing pipe and the case body moving pipe can be adjusted through the first locking piece according to the actual telescopic height of the luggage case, the capacity of the luggage case can be adjusted rapidly, and the luggage case can be pushed and pulled through the telescopic rod, so that the telescopic luggage case is good in flexibility and convenient to use.

2. According to the telescopic luggage case, the upper limiting strip is embedded into the gap between the lower limiting strip and the lower case body from bottom to top, the lower limiting strip is embedded into the gap between the upper limiting strip and the upper case body from top to bottom, the maximum stretching length of the upper case body and the maximum stretching length of the lower case body are limited through the upper limiting strip and the lower limiting strip, and the upper case body and the lower case body can be prevented from slipping off from each other.

3. According to the telescopic luggage case, the upper locking piece and the lower locking piece are both zippers, and the zipper heads of the upper locking piece and the lower locking piece are locked on the lock head, so that the telescopic luggage case is simple to operate and convenient to use.

4. According to the telescopic luggage case, the two first driving rods can be pushed to move outwards to press the first connecting rods by pressing the first driving key, the first connecting rods are pressed downwards to drive the first inclined convex parts to drive the first inclined grooves to move inwards so that the first locking pins retract into the first base body, the luggage case moving pipe can move along the luggage case fixing pipe to adjust the height of the luggage case, the first driving key is released after the height is adjusted, the first locking pins are embedded into the first locking holes under the action of the restoring force of the first spring to lock the luggage case fixing pipe and the luggage case moving pipe, and meanwhile, the first driving spring enables the first driving rods to move inwards to reset.

5. According to the telescopic luggage case, two second driving rods can be pushed to move outwards to press down the second connecting rods by pressing the second driving keys, the second connecting rods are pressed down to drive the second inclined convex parts to drive the second inclined grooves to move inwards so that the second lock pins retract into the second seat body, the push-pull movable pipe can move along the push-pull fixed pipe to adjust the height of the handle, the second driving keys are released after the height adjustment is finished, the second lock pins are embedded into the second locking holes under the action of the restoring force of the second springs to lock the push-pull fixed pipe and the push-pull movable pipe, and meanwhile, the second driving springs enable the second driving rods to move inwards to reset.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

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

FIG. 3 is a schematic longitudinal sectional view of the upper and lower cases of the present invention;

FIG. 4 is a partial enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the present invention;

FIG. 6 is a partial enlarged view of portion B of FIG. 5;

FIG. 7 is a schematic front side perspective view of the case fixing tube, the case moving tube and the telescopic rod of the present invention;

FIG. 8 is a schematic rear side perspective view of the case fixing tube, the case moving tube and the telescopic rod of the present invention;

FIG. 9 is a schematic structural view of the case fixing tube, the case moving tube and the telescopic rod of the present invention without the installation seat and the handle;

FIG. 10 is a schematic view of the connection structure of the first driving member and the second driving member of the present invention;

FIG. 11 is a schematic longitudinal sectional view of the case fixing tube, the case moving tube and the telescopic link according to the present invention along the first thrust member;

fig. 12 is a partial enlarged view of portion C of fig. 11;

FIG. 13 is a schematic longitudinal sectional view of the case fixing tube, the case moving tube and the telescopic link according to the present invention along the second thrust member;

fig. 14 is a partial enlarged view of portion D of fig. 13;

FIG. 15 is a schematic view of the first and second driving members of the present invention;

FIG. 16 is a schematic structural view of the first locking element of the present invention without the first seat;

fig. 17 is a schematic structural view of the second locking member of the present invention when the second seat is not installed.

The reference numbers in the figures denote:

1. a box body fixing pipe; 10. a first locking hole; 2. a box body moving pipe; 3. a telescopic rod; 30. pushing and pulling the fixed pipe; 300. a second locking hole; 31. pushing and pulling the movable tube; 32. a second lock; 320. a second seat body; 321. a second lock pin; 3210. a second chute; 322. a second spring; 323. a second thrust member; 3230. a second oblique convex portion; 324. a second link; 4. a first locking member; 40. a first seat body; 41. a first lock pin; 410. a first chute; 42. a first spring; 43. a first thrust member; 430. a first oblique convex portion; 44. a first link; 5. a mounting seat; 50. a first driving member; 500. a first drive key; 501. a first drive lever; 502. a first drive spring; 6. a handle; 60. a second driving member; 600. a second drive key; 601. a second drive lever; 602. a second drive spring; 7. an upper box body; 70. an upper cavity; 71. an upper containing cover; 72. an upper locking member; 73. an upper limit strip; 8. a lower box body; 80. a lower cavity; 81. a lower containing cover; 82. a lower locking piece; 83. a lower limit strip; 84. a pulley.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 17, a telescopic luggage case includes a case fixing tube 1, a case moving tube 2, a telescopic rod 3, an upper case 7 and a lower case 8; the lower end of the upper box body 7 is sleeved outside the lower box body 8, and the capacity of the luggage case is adjusted by changing the relative positions of the upper box body 7 and the lower box body 8; the upper end of the box body moving pipe 2 is fixedly connected with the upper box body 7, and the lower end of the box body moving pipe 2 is provided with a first locking piece 4; the box body fixing pipe 1 is fixedly connected with the lower box body 8, the lower end of the box body moving pipe 2 is sleeved in the box body fixing pipe 1, and the box body moving pipe 2 is locked on the box body fixing pipe 1 through the first locking piece 4; the bottom of the lower box body 8 is provided with a pulley 84 for moving the luggage case; the telescopic rod 3 is arranged at the upper end of the box body moving pipe 2 and pushes and pulls the luggage case through the telescopic rod 3.

As shown in fig. 1, 5 and 6, the upper box 7 includes an upper receiving cavity 70 and an upper receiving cover 71 which are oppositely arranged; an upper locking piece 72 is arranged between the upper cavity 70 and the upper cavity cover 71, and the upper cavity 70 and the upper cavity cover 71 are detachably connected together through the upper locking piece 72; the lower box body 8 comprises a lower containing cavity 80 and a lower containing cover 81 which are oppositely arranged; a lower locking piece 82 is arranged between the lower cavity 80 and the lower cavity cover 81, and the lower cavity 80 and the lower cavity cover 81 are detachably connected together through the lower locking piece 82; the upper locking piece 72 and the lower locking piece 82 are both zippers; the outer wall of the lower end of the upper box body 7 is fixed with a lock head, and the zipper heads of the upper locking piece 72 and the lower locking piece 82 are locked on the lock head.

As shown in fig. 1 to 4, an upper limiting strip 73 is fixed at the lower end of the upper box 7, and the upper limiting strip 73 extends towards the upper end of the inner side of the upper box 7; a lower limiting strip 83 is fixed at the upper end of the lower box body 8, and the lower limiting strip 83 extends towards the lower end of the outer side of the lower box body 8; the upper limit strip 73 is embedded into a gap between the lower limit strip 83 and the lower box body 8 from bottom to top, the lower limit strip 83 is embedded into a gap between the upper limit strip 73 and the upper box body 7 from top to bottom, and the maximum stretching length of the upper box body 7 and the maximum stretching length of the lower box body 8 are limited through the upper limit strip 73 and the lower limit strip 83.

As shown in fig. 7, 9, 10, 11, 12 and 16, the first locking member 4 includes a first housing 40, a plurality of first locking pins 41, a first spring 42 and a first thrust member 43; the first seat body 40 is fixedly arranged at the lower end of the box body moving pipe 2; a plurality of first locking holes 10 are formed in the box body fixing pipe 1 at intervals from top to bottom; the first lock pin 41 and the first spring 42 are arranged in the first seat body 40, one end of the first lock pin 41 is connected with the first spring 42, the other end of the first lock pin 41 is embedded into the first lock hole 10, and a protective cover for preventing sundries from entering the interior of the first lock hole 10 can be arranged outside the box body fixing pipe 1; the first thrust member 43 is disposed on the first seat 40, and the first lock pin 41 is driven to retract into the first seat 40 by the first thrust member 43.

As shown in fig. 8, 9, 10, 13, 14 and 17, the telescopic rod 3 comprises a push-pull fixing tube 30 and a push-pull moving tube 31; the push-pull fixed pipe 30 is sleeved in the box body moving pipe 2, and the lower end of the push-pull fixed pipe is fixed on one side of the upper end of the first seat body 40; the lower end of the push-pull moving pipe 31 is provided with a second locking piece 32; the lower end of the push-pull movable pipe 31 is sleeved in the push-pull fixed pipe 30, and the push-pull movable pipe 31 is locked on the push-pull fixed pipe 30 through the second locking piece 32.

As shown in fig. 8, 9, 10, 13, 14 and 17, the second locking member 32 includes a second seat 320, a second locking pin 321, a second spring 322 and a second thrust member 323; the second seat 320 is fixedly arranged at the lower end of the box moving pipe 2; a plurality of second locking holes 300 are formed in the push-pull fixing tube 30 at intervals from top to bottom; the second lock pin 321 and the second spring 322 are disposed in the second seat 320, one end of the second lock pin 321 is connected to the second spring 322, and the other end of the second lock pin 321 is embedded in the second locking hole 300; the second thrust member 323 is disposed on the second seat 320, and the second thrust member 323 drives the second lock pin 321 to retract into the second seat 320.

As shown in fig. 10, 11, 12 and 16, the number of the first lock pins 41 is two, and the two first lock pins 41 are oppositely disposed on two sides of the first seat 40; the end parts of the first springs 42 are respectively fixedly connected with the inner ends of the two first lock pins 41; the upper end of the first lock pin 41 is provided with a first inclined groove 410; the first thrust piece 43 is slidably disposed on the first seat 40, and a first inclined convex part 430 is disposed at the lower end of the first thrust piece 43; a first connecting rod 44 is fixed at the upper end of the first thrust piece 43; the first connecting rod 44 is located outside the push-pull fixing tube 30, and the upper end of the first connecting rod 44 extends out of the box moving tube 2, and the first connecting rod 44 is pressed downwards to drive the first inclined protrusion 430 to drive the first inclined groove 410 to move inwards, so that the first lock pin 41 retracts into the first seat 40.

As shown in fig. 10, 11, 12 and 16, one end of the second spring 322 is fixedly connected to the inner end of the second locking pin 321, and the other end of the second spring 322 is fixedly connected to the second seat 320; a second chute 3210 is arranged at the upper end of the second lock pin 321; the second thrust piece 323 is slidably disposed on the second seat 320, and a second inclined convex portion 3230 is disposed at a lower end of the second thrust piece 323; a second connecting rod 324 is fixed at the upper end of the second thrust piece 323; the upper end of the second connecting rod 324 extends out of the push-pull moving tube 31, and the second connecting rod 324 is pressed downwards to drive the second inclined protrusion 3230 to drive the second inclined groove 3210 to move inwards, so that the second lock pin 321 retracts into the second seat 320.

As shown in fig. 7, 8, 9, 10, 11 and 15, the box fixing tube 1, the box moving tube 2 and the telescopic rod 3 are oppositely arranged at the left and right sides; a mounting seat 5 is fixed between the upper ends of the two box body moving pipes 2, and a handle 6 is fixed between the upper ends of the two push-pull moving pipes 31; the mounting seat 5 is provided with a first driving piece 50, and two oppositely arranged first connecting rods 44 are pressed downwards through the first driving piece 50; the handle 6 is provided with a second driving member 60, and two second connecting rods 324 arranged oppositely are pressed down by the second driving member 60.

As shown in fig. 7, 8, 9, 10, 11 and 15, the first driving member 50 includes a first driving key 500 and two first driving rods 501 respectively disposed at the sides of the first driving key 500; two ends of the first driving rod 501 are inclined planes, and the first driving rod 501 is slidably arranged on the mounting base 5; the first driving key 500 is pressed down to push the two first driving rods 501 to move outwards so as to press down the first connecting rod 44; a first driving spring 502 is arranged in the first driving rod 501, and two ends of the first driving spring 502 are respectively connected with the first driving rod 501 and the mounting seat 5 to enable the first driving rod 501 to move inwards and reset; the second driving member 60 includes a second driving key 600 and two second driving rods 601 respectively disposed at the sides of the second driving key 600; the two ends of the second driving rod 601 are inclined planes, and the second driving rod 601 is slidably arranged on the handle 6; the second driving key 600 is pressed down to push the two second driving rods 601 to move outwards to press down the second connecting rod 324; a second driving spring 602 is arranged in the second driving rod 601, and two ends of the second driving spring 602 are respectively connected with the second driving rod 601 and the handle 6 to enable the second driving rod 601 to move inwards and return.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A telescopic suitcase, its characterized in that: comprises a box body fixing pipe (1), a box body moving pipe (2), a telescopic rod (3), an upper box body (7) and a lower box body (8); the lower end of the upper box body (7) is sleeved outside the lower box body (8), and the capacity of the luggage case is adjusted by changing the relative position of the upper box body (7) and the lower box body (8); the upper end of the box body moving pipe (2) is fixedly connected with the upper box body (7), and the lower end of the box body moving pipe (2) is provided with a first locking piece (4); the box body fixing pipe (1) is fixedly connected with the lower box body (8), the lower end of the box body moving pipe (2) is sleeved in the box body fixing pipe (1), and the box body moving pipe (2) is locked on the box body fixing pipe (1) through a first locking piece (4); the bottom of the lower box body (8) is provided with a pulley (84) for moving the luggage case; the telescopic rod (3) is arranged at the upper end of the box body moving pipe (2) and pushes and pulls the luggage case through the telescopic rod (3).

2. The collapsible luggage case of claim 1, wherein: the upper box body (7) comprises an upper cavity (70) and an upper cavity cover (71) which are oppositely arranged; an upper locking piece (72) is arranged between the upper cavity (70) and the upper cavity cover (71), and the upper cavity (70) and the upper cavity cover (71) are detachably connected together through the upper locking piece (72); the lower box body (8) comprises a lower containing cavity (80) and a lower containing cover (81) which are oppositely arranged; lower locking piece (82) is arranged between lower cavity (80) and lower cover (81), and lower cavity (80) and lower cover (81) are detachably connected together through lower locking piece (82).

3. The collapsible luggage case of claim 1, wherein: an upper limiting strip (73) is fixed at the lower end of the upper box body (7), and the upper limiting strip (73) extends towards the upper end of the inner side of the upper box body (7); a lower limiting strip (83) is fixed at the upper end of the lower box body (8), and the lower limiting strip (83) extends towards the lower end of the outer side of the lower box body (8); the upper limit strip (73) is embedded into a gap between the lower limit strip (83) and the lower box body (8) from bottom to top, the lower limit strip (83) is embedded into a gap between the upper limit strip (73) and the upper box body (7) from top to bottom, and the maximum stretching length of the upper box body (7) and the lower box body (8) is limited through the upper limit strip (73) and the lower limit strip (83).

4. The collapsible luggage case of claim 1, wherein: the first locking piece (4) comprises a first base body (40), a plurality of first locking pins (41), a first spring (42) and a first thrust piece (43); the first seat body (40) is fixedly arranged at the lower end of the box body moving pipe (2); a plurality of first locking holes (10) are formed in the box body fixing pipe (1) at intervals from top to bottom; the first lock pin (41) and the first spring (42) are arranged in the first seat body (40), one end of the first lock pin (41) is connected with the first spring (42), and the other end of the first lock pin (41) is embedded into the first locking hole (10); the first thrust piece (43) is arranged on the first seat body (40), and the first lock pin (41) is driven to retract into the first seat body (40) through the first thrust piece (43).

5. The collapsible luggage case of claim 4, wherein: the telescopic rod (3) comprises a push-pull fixed pipe (30) and a push-pull movable pipe (31); the push-pull fixed pipe (30) is sleeved in the box body moving pipe (2) and the lower end of the push-pull fixed pipe is fixed on one side of the upper end of the first seat body (40); the lower end of the push-pull moving pipe (31) is provided with a second locking piece (32); the lower end of the push-pull movable pipe (31) is sleeved in the push-pull fixed pipe (30), and the push-pull movable pipe (31) is locked on the push-pull fixed pipe (30) through a second locking piece (32).

6. The collapsible luggage case of claim 5, wherein: the second locking piece (32) comprises a second seat body (320), a second locking pin (321), a second spring (322) and a second thrust piece (323); the second seat body (320) is fixedly arranged at the lower end of the box body moving pipe (2); a plurality of second locking holes (300) are formed in the push-pull fixing pipe (30) at intervals from top to bottom; the second lock pin (321) and the second spring (322) are arranged in the second seat body (320), one end of the second lock pin (321) is connected with the second spring (322), and the other end of the second lock pin (321) is embedded into the second locking hole (300); the second thrust piece (323) is arranged on the second seat body (320), and the second thrust piece (323) drives the second lock pin (321) to retract into the second seat body (320).

7. The collapsible luggage case of claim 6, wherein: the number of the first lock pins (41) is two, and the two first lock pins (41) are oppositely arranged on two sides of the first seat body (40); the end parts of the first springs (42) are respectively fixedly connected with the inner ends of the two first lock pins (41); a first chute (410) is arranged at the upper end of the first lock pin (41); the first thrust piece (43) is arranged on the first seat body (40) in a sliding mode, and a first inclined convex part (430) is arranged at the lower end of the first thrust piece (43); a first connecting rod (44) is fixed at the upper end of the first thrust piece (43); the first connecting rod (44) is positioned on the outer side of the push-pull fixed pipe (30), the upper end of the first connecting rod (44) extends out of the box body moving pipe (2), and the first inclined convex part (430) is driven by pressing down the first connecting rod (44) to drive the first inclined groove (410) to move inwards so that the first lock pin (41) retracts into the first seat body (40).

8. The collapsible luggage case of claim 7, wherein: one end of the second spring (322) is fixedly connected with the inner end of the second lock pin (321), and the other end of the second spring (322) is fixedly connected with the second seat body (320); a second chute (3210) is arranged at the upper end of the second lock pin (321); the second thrust piece (323) is arranged on the second seat body (320) in a sliding mode, and a second inclined convex part (3230) is arranged at the lower end of the second thrust piece (323); a second connecting rod (324) is fixed at the upper end of the second thrust piece (323); the upper end of the second connecting rod (324) extends out of the push-pull moving pipe (31), and the second inclined convex part (3230) is driven by pressing the second connecting rod (324) downwards to drive the second inclined groove (3210) to move inwards so that the second lock pin (321) retracts into the second seat body (320).

9. The collapsible luggage case of claim 8, wherein: the box body fixing pipe (1), the box body moving pipe (2) and the telescopic rod (3) are oppositely arranged at the left and right sides; a mounting seat (5) is fixed between the upper ends of the two box body moving pipes (2), and a handle (6) is fixed between the upper ends of the two push-pull moving pipes (31); a first driving piece (50) is arranged on the mounting seat (5), and two first connecting rods (44) which are arranged oppositely are pressed downwards through the first driving piece (50); the handle (6) is provided with a second driving piece (60), and two oppositely arranged second connecting rods (324) are pressed down through the second driving piece (60).

10. The collapsible luggage case of claim 9, wherein: the first driving piece (50) comprises a first driving key (500) and two first driving rods (501) which are respectively arranged at the side edges of the first driving key (500); two ends of the first driving rod (501) are inclined planes, and the first driving rod (501) is arranged on the mounting seat (5) in a sliding mode; the first driving key (500) is pressed downwards to push the two first driving rods (501) to move outwards so as to press the first connecting rod (44) downwards; a first driving spring (502) is arranged in the first driving rod (501), and two ends of the first driving spring (502) are respectively connected with the first driving rod (501) and the mounting seat (5) to enable the first driving rod (501) to move inwards and reset; the second driving part (60) comprises a second driving key (600) and two second driving rods (601) which are respectively arranged at the side edges of the second driving key (600); two ends of the second driving rod (601) are inclined planes, and the second driving rod (601) is arranged on the handle (6) in a sliding mode; the second driving key (600) is pressed downwards to push the two second driving rods (601) to move outwards so as to press the second connecting rod (324) downwards; and a second driving spring (602) is arranged in the second driving rod (601), and two ends of the second driving spring (602) are respectively connected with the second driving rod (601) and the handle (6) to enable the second driving rod (601) to move inwards and reset.