CN220124125U

CN220124125U - Luggage case with pulley locking function

Info

Publication number: CN220124125U
Application number: CN202321077030.3U
Authority: CN
Inventors: 林文彬; 彭书德; 聂旭; 张金波; 谢福轩; 修洋军; 彭凡
Original assignee: Guangdong Binhao Technology Co ltd
Current assignee: Guangdong Binhao Technology Co ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-12-05
Anticipated expiration: 2033-05-06

Abstract

The suitcase with the pulley locking function comprises a shell and a plurality of groups of shifting components arranged on the front side and the rear side of the bottom of the shell, wherein each group of shifting components comprises supporting legs arranged at the bottom of the shell and pulleys movably arranged on the supporting legs, the suitcase with the pulley locking function also comprises limiting components matched with part or all of shifting components, and the limiting components can lock the pulleys on the shifting components matched with the limiting components; the limiting assembly comprises a brake assembly, a first linkage assembly, a positioning assembly, a second linkage assembly and a locking piece, wherein the first linkage assembly is connected with the brake assembly and the positioning assembly, one end of the second linkage assembly is connected with the positioning assembly, the other end of the second linkage assembly is matched with the locking piece, and the positioning assembly can be switched to a first state and a second state; the utility model effectively reduces the risks of mistaking and theft of the luggage in the use process, improves the safety in use, has strong practicability and has stronger popularization significance.

Description

Luggage case with pulley locking function

Technical Field

The utility model relates to a luggage structure, in particular to a luggage case with a pulley locking function.

Background

The luggage case, also called a suitcase and a draw-bar box, is a case carried by a user when going out for placing articles, and is used for placing clothes, personal care articles and souvenirs needed in the journey, so that the user can conveniently carry personal articles when going out, and great convenience is brought to the user.

However, the existing luggage case is not provided with a pulley locking function as a whole, when the luggage case is used in public places with large traffic, the luggage case is different in color and appearance, and is easy to take by mistake, so that the user is disturbed, and the existing luggage case is not provided with an anti-theft function, is easy to be stolen, and causes property loss.

Disclosure of Invention

Based on this, it is necessary to provide a luggage case with a pulley locking function against the shortcomings in the prior art.

The suitcase with the pulley locking function comprises a shell and a plurality of groups of shifting components arranged on the front side and the rear side of the bottom of the shell, wherein each group of shifting components comprises supporting legs arranged at the bottom of the shell and pulleys movably arranged on the supporting legs, the suitcase with the pulley locking function also comprises limiting components matched with part or all of shifting components, and the limiting components can lock the pulleys on the shifting components matched with the limiting components; the limiting assembly comprises a brake assembly, a first linkage assembly, a positioning assembly, a second linkage assembly and a locking piece, wherein the first linkage assembly is connected with the brake assembly and the positioning assembly, one end of the second linkage assembly is connected with the positioning assembly, the other end of the second linkage assembly is matched with the locking piece, and the positioning assembly can be switched to a first state and a second state;

when the position adjusting component is adjusted to a first state, the position adjusting component drives the brake component to lock the pulley through the first linkage component, the locking piece is buckled on the second linkage component, the locking piece enables the position adjusting component to be kept in the first state through the second linkage component, otherwise, when the locking piece releases the second linkage component, the position adjusting component is restored to a second state, and the brake component releases the pulley.

In one embodiment, the brake assembly comprises a first return spring, a brake piece and a rotating shaft, wherein the brake piece is pivoted with the supporting leg through the rotating shaft, and two ends of the first return spring are respectively propped against the brake piece and the supporting leg; when the positioning assembly drives the brake assembly to lock the pulley through the first linkage assembly, the brake piece rotates around the rotating shaft and abuts against the pulley, and the first reset spring elastically contracts. On the contrary, when the positioning assembly releases the brake assembly, the first return spring elastically returns, and the brake piece rotates around the rotating shaft and releases the pulley.

In one embodiment, the brake piece comprises a connecting sheet, a linkage sheet connected to the connecting sheet, and a brake sheet extending outwards horizontally from the end part of the linkage sheet, wherein the linkage sheet is obliquely connected to the connecting sheet, and the connecting sheet and the brake sheet are arranged in a staggered manner in the vertical direction.

In one embodiment, the support leg is provided with a first movable hole, the middle part of the linkage piece is provided with a second movable hole, the rotating shaft simultaneously penetrates through the first movable hole and the second movable hole during assembly, two ends of the first reset spring are propped against the connecting piece and the base, and the first linkage assembly is connected with the connecting piece.

In one embodiment, the positioning assembly comprises a knob, a positioning block, a connecting rod and a linkage block, wherein the connecting rod is connected with the positioning block and the linkage block, the knob is installed in a matched mode with the positioning block, and the linkage block is connected with the first linkage assembly.

In one embodiment, the positioning assembly further comprises a locking block and a second return spring, and the locking block is connected with the second linkage assembly; when the second linkage assembly is pulled to enable the second linkage assembly to extend to the position matched with the locking piece, the locking piece moves outwards and presses the second reset spring, and the locking piece is buckled on the adjusting piece.

In one embodiment, the positioning block comprises a main body part and a limiting strip connected to one side of the main body part, the limiting strip comprises a connecting section and a guiding section, a clamping groove is formed in the inner side of the guiding section and is close to the position of the connecting section, a clamping strip is arranged on the locking block in a protruding mode, and when the positioning assembly is adjusted to a first state, the clamping strip of the locking block is aligned with the clamping groove of the limiting strip.

In one embodiment, the guiding section is arc-shaped, the guiding section is arranged on the outer side of the main body in a surrounding mode, and the connecting section is connected with the end portion of the guiding section and the outer peripheral surface of the main body.

In one embodiment, the positioning block further comprises an eccentric part connected to one side of the main body part, a first positioning hole is formed in the eccentric part, the linkage block is provided with an avoidance groove, a second positioning hole is formed in the bottom of the avoidance groove, the positions of the two ends of the connecting rod are protruded with linkage protrusions, and the linkage protrusions at the two ends of the connecting rod are respectively buckled in the second positioning hole of the linkage block and the first positioning hole of the eccentric part.

In one embodiment, the positioning assembly further comprises a positioning seat, the positioning seat is provided with a first accommodating groove, the positioning block is arranged in the first accommodating groove, a positioning stopping plate is arranged in the first accommodating groove, and when the positioning assembly is adjusted to a first state, the eccentric part of the positioning block is abutted to the positioning stopping plate.

The utility model has the beneficial effects that: through setting up spacing subassembly, spacing subassembly includes brake subassembly, first linkage subassembly, positioning subassembly, second linkage subassembly and retaining member, when positioning subassembly was adjusted to first state, positioning subassembly drives brake subassembly locking pulley through first linkage subassembly, the retaining member detains on second linkage subassembly and carries out spacingly to positioning subassembly through second linkage subassembly to make brake subassembly locking and its complex pulley, effectively reduce case and bag by the mistake in the use take with stolen risk, security when improving the use, the practicality is strong, has stronger popularization meaning.

Drawings

FIG. 1 is a schematic view of a luggage case with pulley locking function according to the present utility model;

FIG. 2 is a schematic view of a spacing assembly of the luggage case of FIG. 1;

FIG. 3 is a schematic view of the spacing assembly of FIG. 2 mated with a support leg and pulley;

FIG. 4 is a schematic view of the support foot of FIG. 1 in combination with a pulley and brake assembly;

FIG. 5 is a schematic view of the support foot of FIG. 4 engaged with a brake assembly;

FIG. 6 is a schematic view of the brake assembly of FIG. 5;

FIG. 7 is a schematic view of the positioning assembly of FIG. 3 with the inner cover removed;

FIG. 8 is a schematic view of a positioning block of the positioning assembly of FIG. 7;

FIG. 9 is a schematic view of the latch block of the positioning assembly of FIG. 7;

FIG. 10 is a schematic view of the structure of the connecting rod of the positioning assembly of FIG. 7.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 10, the present utility model provides a luggage case with a pulley locking function, which includes a case 10, a plurality of sets of displacement assemblies mounted on front and rear sides of a bottom of the case 10, a pull rod mounted on a rear side of the first case 10, and a limiting assembly 40 engaged with a part or all of the displacement assemblies, wherein each set of displacement assemblies includes a supporting leg 20 mounted on the bottom of the case 10, and a pulley 30 movably mounted on the supporting leg 20, and the limiting assembly 40 can lock the pulley 30 on the displacement assembly engaged with the pulley to rotate freely, so as to prevent the luggage case from being pushed to move horizontally.

The pulleys 30 are divided into a front pulley and a rear pulley, wherein the pulleys on the same side as the pull rod are the rear pulley 30, and the rest are the front pulleys 30, in this embodiment, two pulleys 30 are assembled in a group to be matched with a supporting leg 20, so as to achieve better anti-mistaking and anti-theft effects, and the limiting assembly 40 is matched with the rear pulley 30.

The limiting assembly 40 includes a braking assembly 60, a first linkage assembly 80, a positioning assembly 50, a second linkage assembly 90, and a locking member 70, the number of the braking assembly 60 and the first linkage assembly 80 may be multiple, and each group of braking assemblies 60 and the first linkage assembly 80 corresponds to one shifting assembly. The first linkage assembly 80 connects the brake assembly 60 and the positioning assembly 50, one end of the second linkage assembly 90 is connected with the positioning assembly 50, the other end of the second linkage assembly 90 is matched with the locking member 70, when the positioning assembly 50 is adjusted to the first state, the positioning assembly 50 drives the brake assembly 60 to lock the pulley 30 through the first linkage assembly 80, the locking member 70 is buckled on the second linkage assembly 90 to limit the positioning assembly 50 through the second linkage assembly 90, so that the positioning assembly 50 is kept in the first state, otherwise, when the locking member 70 is released from the second linkage assembly 90, the positioning assembly 50 is restored to the second state, and the brake assembly 60 is released from the pulley 30.

The brake assembly 60 comprises a first return spring 62, a brake piece 61 and a rotating shaft, the brake piece 61 is pivoted with the supporting leg 20 through the rotating shaft, and two ends of the first return spring 62 respectively prop against the brake piece 61 and the supporting leg 20. When the positioning assembly 50 drives the brake assembly 60 to lock the pulley 30 through the first linkage assembly 80, the brake member 61 rotates around the rotating shaft and abuts against the pulley 30, and the first return spring 62 elastically contracts. Conversely, when the positioning assembly 50 releases the brake assembly 60, the first return spring 62 elastically returns, and the brake 61 rotates around the rotation axis and releases the pulley 30.

Specifically, the supporting leg 20 includes a base 21 installed at the bottom of the casing 10, a fixing seat 22 installed on the base 21, the fixing seat 22 includes a first fixing section 221 and a second fixing section 222 connected to one side of the first fixing section 221, the pulley 30 is installed in cooperation with the second fixing section 222 through a bearing, the first fixing section 221 is in a hollow structure, the first fixing section 221 is installed in cooperation with the base 21 along a vertical direction, and a first movable hole is provided in the middle of the second fixing seat 22.

The brake member 61 includes a connecting piece 611, two coupling pieces 612 respectively connected to two ends of the connecting piece 611, and a brake pad 613 extending horizontally and outwardly from an end portion of the coupling piece 612, where the two coupling pieces 612 are disposed oppositely, the coupling pieces 612 are obliquely connected to the connecting piece 611, the connecting piece 611 and the brake pad 613 are disposed in a dislocation manner in a vertical direction, the middle of the two coupling pieces 612 are both provided with second movable holes 614, and the connecting piece 611 is provided with a first fastening hole 615. During assembly, the rotating shaft passes through the first movable hole and the second movable hole 614 at the same time, the first return spring 62 is arranged in the first fixed section 221, two ends of the first return spring 62 are propped against the connecting sheet 611 and the base 21, and when the positioning assembly 50 drives the brake assembly 60 to lock the pulley 30 through the first linkage assembly 80, the first linkage assembly 80 drives the connecting sheet 611 to lift up, so that the whole brake piece 61 rotates around the axis of the rotating shaft, and the two brake pads 613 on the brake piece 61 are pressed down on the same group of pulleys 30 corresponding to the same.

The first linkage assembly 80 comprises a first brake rope 81 and a first leather sheath 82 sleeved on the outer side of the first brake rope 81, two ends of the first brake rope 81 extend out of two ends of the first leather sheath 82 respectively, two ends of the first brake rope 81 are provided with first fixing heads 811, one end of the first brake rope 81 of the first linkage assembly 80 penetrates through the base 21, the first return spring 62, the first fixing section 221 and the connecting sheet 611, and the first fixing heads 811 at one end of the first brake rope 81 are buckled at the opening of the first buckling hole 615 on the connecting sheet 611.

The positioning assembly 50 comprises an inner cover 52, a positioning seat 51, a knob 58, a locking block 56, a second reset spring 57, a positioning block 53, a connecting rod 55 and a linkage block 54, wherein the inner cover 52 is matched with the positioning seat 51, the inner cover 52 and the positioning seat 51 form a positioning space in a surrounding mode, the locking block 56, the second reset spring 57, the positioning block 53, the connecting rod 55 and the linkage block 54 are arranged in the positioning space, the connecting rod 55 is connected with the positioning block 53 and the linkage block 54, the knob 58 extends into the positioning seat 51 and is installed with the positioning block 53, and the locking block 56 and the linkage block 54 are respectively connected with the second linkage assembly 90 and the first linkage assembly 80.

The positioning seat 51 is provided with a first accommodating groove 511 and a second accommodating groove 512 at the inner and outer sides thereof, an intermediate plate is formed between the first accommodating groove 511 and the second accommodating groove 512, a through hole is formed in the intermediate plate, and the positioning seat 51 is provided with a positioning plate 514 and two guide plates 513 in the first accommodating groove 511. The inner side surface of the positioning seat 51 is further provided with a third receiving groove 516, the third receiving groove 516 is communicated with the first receiving groove 511, and the positioning block 53 is disposed in the first receiving groove 511. The positioning block 53 comprises a main body portion 531, an eccentric portion 532 and a limiting strip 533, wherein the eccentric portion 532 and the limiting strip 533 are connected to one side of the main body portion 531, a clamping hole 534 is formed in the middle of the main body portion 531, a first positioning hole 535 is formed in the eccentric portion 532, the limiting strip 533 comprises a connecting section 536 and a guiding section 537, the guiding section 537 is in an arc-shaped arrangement, the guiding section 537 is annularly arranged on the outer side of the main body portion 531, the connecting section 536 is connected with the end portion of the guiding section 537 and the outer peripheral surface of the main body portion 531, and a clamping groove 538 is formed in the inner side of the guiding section 537 by the position of the connecting section 536.

The lateral surface that the linkage piece 54 leaned on the top is equipped with dodges the groove 541, dodge the tank bottom in groove 541 and be equipped with the second hole of adjusting the position, the lateral surface that the linkage piece 54 leaned on the bottom is equipped with first catching groove 542, the connecting rod 55 leans on the medial surface of both ends position protruding being equipped with the linkage arch 551, the lateral surface is equipped with the second catching groove 561 near one end position in the front side of locking piece 56, the trailing flank of the other end of locking piece 56 protruding being equipped with the card strip 562. The knob 58 includes a knob main body 581 and a positioning rod 582, and the positioning rod 582 is connected to the middle of the rear side of the knob main body 581.

The second linkage assembly 90 comprises a second brake rope 91, a second leather sheath 92 sleeved on the outer side of the second brake rope 91, and a fastener 912 connected to the second brake rope 91, two ends of the second brake rope 91 extend out from two sides of the second leather sheath 92 respectively, and one end, far away from the fastener 912, of the second brake rope 91 is provided with a second fixed head 911.

When assembled, the positioning block 53 is disposed in the first accommodating groove 511, the positioning hole 534 of the main body 531 is aligned with the through hole of the positioning seat 51, the positioning rod 582 of the knob 58 passes through the through hole and is clamped in the positioning hole 534 and is fixed by glue or other forms, and the knob main body 581 of the knob 58 is disposed in the second accommodating groove 512. The second return spring 57 and one end of the locking block 56 are installed between the two guide plates 513, the second return spring 57 elastically abuts against the locking block 56, and the clamping strip 562 of the locking block 56 is disposed between the main body 531 of the positioning block 53 and the guide section 537 of the limiting strip 533. The linkage block 54 is disposed in the third receiving groove 516, the groove walls on both sides of the third receiving groove 516 can guide the linkage block 54, and the linkage protrusions 551 on both ends of the link 55 are respectively locked in the second positioning hole of the linkage block 54 and the first positioning hole 535 of the eccentric portion 532. The first fixing head 811 of the end of the first brake cable 81 far away from the supporting leg 20 is installed in the first fastening groove 542, the second fixing head 911 of the second brake cable 91 is installed in the second fastening groove 561 of the locking block 56, and finally the inner cover 52 and the positioning seat 51 are installed and fixed on the case in a matching manner. Preferably, the luggage case further comprises a lining for decoration, a through part for the first linkage assembly 80 and the second linkage assembly 90 to pass through is formed between the lining and the case body, the positioning assembly 50 of the limiting assembly 40 is embedded on the case body from the outer side surface, and the locking member 70 is mounted on the outer side surface of the case body. The second linkage assembly 90 extends from the outer side of the housing against one end of the catch 912.

In use, when the brake assembly 60 needs to be locked to the pulley 30, the knob main body 581 is rotated until the eccentric portion 532 of the positioning block 53 abuts against the stop plate 514, at this time, the positioning assembly 50 is adjusted to the first state, the clamping strips 562 of the locking block 56 are aligned with the clamping grooves 538 of the limiting strips 533, the knob main body 581 drives the positioning block 53 to synchronously rotate in the rotation process, the eccentric portion 532 of the positioning block 53 drives the linkage block 54 to lift up through the connecting rod 55, and when the linkage block 54 lifts up, the brake pad 613 of the brake 61 is driven to be pressed down and abut against the pulley 30 through the first brake rope 81, the pulley 30 is locked, and the first return spring 62 elastically contracts. And then the second brake rope 91 is pulled, so that the fastener 912 connected to the second brake rope 91 extends to a position matched with the locking piece 70 and is locked with the locking piece 70, the second brake rope 91 pulls the locking piece 56 to move outwards and presses the second return spring 57, and the clamping strip 562 of the locking piece 56 is clamped in the clamping groove 538 of the limiting strip 533.

When the pulley 30 is required to be loosened by the brake assembly 60 to enable the luggage case to move freely, the locking piece 70 is opened, the positioning assembly 50 is adjusted to the second state, the second return spring 57 elastically abuts against the locking piece 56 to return, the clamping strip 562 of the locking piece 56 is withdrawn from the clamping groove 538 of the limiting strip 533, and the first return spring 62 elastically abuts against the brake piece 61 to enable the brake pad 613 to loosen the pulley 30. The brake member 61 drives the linkage block 54 and the positioning block 53 to return to the initial positions through the first brake rope 81, and the linkage block 54 abuts against the bottommost position of the third accommodating groove 516.

It should be understood that the locking member 70 is mainly used to fasten or unfasten the fastening member 912, in this embodiment, the locking member 70 is a coded lock, and in other embodiments, the locking member 70 may be a mechanical lock or other locks that can be opened only by a specific key, code, magnetic card, etc., so that a person cannot open the lock at will.

The utility model has the beneficial effects that: through setting up spacing subassembly 40, spacing subassembly 40 includes brake subassembly 60, first linkage subassembly 80, positioning subassembly 50, second linkage subassembly 90 and retaining member 70, when positioning subassembly 50 adjusts to the first state, positioning subassembly 50 drives brake subassembly 60 locking pulley 30 through first linkage subassembly 80, retaining member 70 detains on second linkage subassembly 90 and carries out spacing to positioning subassembly 50 through second linkage subassembly 90 to make brake subassembly 60 locking and its complex pulley 30, effectively reduce the case and bag by the mistake and stolen risk in the use, security when improving the use, the practicality is strong, has stronger popularization meaning.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The trunk with the pulley locking function comprises a shell and a plurality of groups of shifting components arranged on the front side and the rear side of the bottom of the shell, wherein each group of shifting components comprises supporting legs arranged at the bottom of the shell and pulleys movably arranged on the supporting legs; the limiting assembly comprises a brake assembly, a first linkage assembly, a positioning assembly, a second linkage assembly and a locking piece, wherein the first linkage assembly is connected with the brake assembly and the positioning assembly, one end of the second linkage assembly is connected with the positioning assembly, the other end of the second linkage assembly is matched with the locking piece, and the positioning assembly can be switched to a first state and a second state;

2. The luggage with pulley locking function according to claim 1, wherein the brake assembly comprises a first return spring, a brake piece and a rotating shaft, the brake piece is pivoted with the supporting leg through the rotating shaft, and two ends of the first return spring are respectively abutted against the brake piece and the supporting leg; when the positioning assembly drives the brake assembly to lock the pulley through the first linkage assembly, the brake piece rotates around the rotating shaft and abuts against the pulley, and the first reset spring elastically contracts; on the contrary, when the positioning assembly releases the brake assembly, the first return spring elastically returns, and the brake piece rotates around the rotating shaft and releases the pulley.

3. The luggage case with the pulley locking function according to claim 2, wherein the brake piece comprises a connecting piece, a linkage piece connected to the connecting piece, and a brake piece extending outwards horizontally from the end position of the linkage piece, the linkage piece is connected to the connecting piece in an inclined manner, and the connecting piece and the brake piece are arranged in a staggered manner in the vertical direction.

4. The luggage case with the pulley locking function according to claim 3, wherein the supporting leg is provided with a first movable hole, the middle part of the linkage piece is provided with a second movable hole, the rotating shaft simultaneously penetrates through the first movable hole and the second movable hole when assembled, two ends of the first reset spring are abutted against the connecting piece and the base, and the first linkage assembly is connected with the connecting piece.

5. The luggage with pulley locking function according to claim 1, wherein the positioning assembly comprises a knob, a positioning block, a connecting rod and a linkage block, the connecting rod is connected with the positioning block and the linkage block, the knob is installed in cooperation with the positioning block, and the linkage block is connected with the first linkage assembly.

6. The luggage with pulley locking function according to claim 5, wherein the positioning assembly further comprises a locking block and a second return spring, the locking block being connected with the second linkage assembly; when the second linkage assembly is pulled to enable the second linkage assembly to extend to the position matched with the locking piece, the locking piece moves outwards and presses the second reset spring, and the locking piece is buckled on the adjusting piece.

7. The luggage case with the pulley locking function according to claim 6, wherein the positioning block comprises a main body part and a limiting strip connected to one side of the main body part, the limiting strip comprises a connecting section and a guiding section, a clamping groove is formed in the inner side of the guiding section and close to the connecting section, a clamping strip is arranged on the locking block in a protruding mode, and when the positioning assembly is adjusted to the first state, the clamping strip of the locking block is aligned with the clamping groove of the limiting strip.

8. The luggage case with pulley locking function according to claim 7, wherein the guide section is provided in an arc shape, the guide section is provided around the outside of the main body portion, and the connection section connects the end of the guide section and the outer peripheral surface of the main body portion.

9. The luggage case with the pulley locking function according to claim 7, wherein the positioning block further comprises an eccentric part connected to one side of the main body part, a first positioning hole is formed in the eccentric part, the linkage block is provided with a avoidance groove, a second positioning hole is formed in the groove bottom of the avoidance groove, linkage protrusions are convexly arranged at positions close to two ends of the connecting rod, and the linkage protrusions at two ends of the connecting rod are respectively buckled in the second positioning hole of the linkage block and the first positioning hole of the eccentric part.

10. The luggage case with pulley locking function according to claim 9, wherein the positioning assembly further comprises a positioning seat, the positioning seat is provided with a first accommodating groove, the positioning block is arranged in the first accommodating groove, a stop plate is arranged in the first accommodating groove, and when the positioning assembly is adjusted to the first state, the eccentric portion of the positioning block abuts against the stop plate.