阅读说明：本技术 一种行李箱刹车装置 (Suitcase brake equipment ) 是由 江汉辉 于 2020-05-15 设计创作，主要内容包括：本申请提供一种行李箱刹车装置,用户在需要刹车时,只需要向外扳动刹车扳键,刹车扳键下方的倒钩上翘将上提滑块上提,拉动传动线,使刹车轮组被刹车；且所述上提滑块带动上提滑块挂杆的第二横轴上移,所述第二横轴在限位弹簧的作用下以第一横轴为中心往限位弹簧方向旋转并卡设在限位凸块顶端,则使得刹车轮组保持刹车的状态；当需要解锁时,再次扳动刹车扳键,上提滑块挂杆上的第二横轴在限位弹簧的作用下脱离限位凸块,且上提滑块在传动线拉伸下下移实现解除刹车。该刹车操控机构用手扳动刹车扳键即可控制刹车轮组启动刹车或解锁刹车,非常省力,操作也方便。(When a user needs to brake, the user only needs to pull the brake pulling key outwards, the barb below the brake pulling key is upwards tilted to lift the lifting slide block, and the transmission line is pulled to brake the brake wheel set; the lifting slide block drives a second transverse shaft of the lifting slide block hanging rod to move upwards, and the second transverse shaft rotates towards the direction of the limiting spring by taking the first transverse shaft as the center under the action of the limiting spring and is clamped at the top end of the limiting bump, so that the brake wheel set keeps a brake state; when the unlocking is needed, the brake pulling key is pulled again, the second transverse shaft on the lifting slide block hanging rod is separated from the limiting bump under the action of the limiting spring, and the lifting slide block moves downwards under the stretching of the transmission line to release the brake. The brake control mechanism can control the brake wheel set to start or unlock the brake by pulling the brake pulling key by a hand, thereby being labor-saving and convenient to operate.)

1. The utility model provides a suitcase brake equipment which characterized in that: comprises a brake control device, a plurality of brake wheel groups and a plurality of transmission lines; the brake control device comprises an inner seat, a limiting spring, a lifting slide block hanging rod, a lifting slide block, an outer seat and a brake pull key, wherein the lifting slide block is arranged on one side of the inner seat and freely slides along the vertical direction; one end of each transmission line is connected with the lifting slide block, and the other end of each transmission line is connected with the brake wheel set; the surface of the front end of the inner seat is provided with a track groove, and the central position of the track groove is provided with a V-shaped limiting lug; the surface of the lifting slide block hanging rod is provided with a first transverse shaft, and the lifting slide block hanging rod is movably assembled on the back surface of the lifting slide block through the first transverse shaft; the back of one end of the lifting slide block hanging rod is provided with a second transverse shaft positioned in the track groove; one end of the limiting spring is fixed on the inner seat, and the other end of the limiting spring is abutted against the other tail end of the lifting slide block hanging rod; the brake pulling key is pulled to enable the barb to hook the lifting slide block to move upwards, the lifting slide block drives the transmission line to move upwards and brake of the brake wheel set is achieved, the lifting slide block drives the second transverse shaft of the lifting slide block hanging rod to move upwards, the second transverse shaft rotates towards the direction of the limiting spring by taking the first transverse shaft as the center under the action of the limiting spring and is clamped at the top end of the limiting convex block, and the lifting slide block keeps a lifting state; and the brake pulling key is pulled again, the second transverse shaft on the hanging rod of the lifting slide block is separated from the limiting bump under the action of the limiting spring, and the lifting slide block moves downwards under the stretching of the transmission line to release the brake.

2. A luggage brake arrangement according to claim 1, wherein: still include first fixed axle, cup joint the key return torsional spring of pulling on first fixed axle, first mounting hole has been seted up on the surface of outer seat, just the key is pulled in the brake through first fixed axle activity setting in first mounting hole.

3. A luggage brake arrangement according to claim 1, wherein: the track groove is of a right-angled triangle structure, the left side of the track groove is a first track right-angled side edge extending along the vertical direction, the upper end of the track groove is a second track right-angled side edge extending along the horizontal direction, and the right side of the track groove is a first track bevel edge connecting the first track right-angled side edge and the second track right-angled side edge; the brake pulling key is pulled to enable the barb to hook the lifting slide block to move upwards, the lifting slide block drives the second transverse shaft of the lifting slide block hanging rod to move upwards along the right-angle side edge of the first track, the second transverse shaft rotates towards the direction of the first bevel edge by taking the first transverse shaft as the center under the action of the limiting spring and is clamped at the top end of the limiting lug, and the lifting slide block keeps a lifting state; and pulling the brake pulling key again, separating the second transverse shaft on the lifting slide block hanging rod from the limiting convex block under the action of the limiting spring, and moving the second transverse shaft on the lifting slide block hanging rod to the tail end of the right-angle side edge of the first track along the first bevel edge.

4. A luggage brake arrangement according to claim 3, wherein: the track groove is internally provided with a baffle which is in a right-angled triangle shape and is positioned above the limiting lug in a protruding mode, wherein the baffle comprises a first baffle bevel edge positioned on the right side of the baffle, a first baffle right-angle edge positioned on the left side of the baffle and extending along the vertical direction, and a second baffle right-angle edge positioned on the upper end of the baffle and extending along the horizontal direction; wherein the second baffle right-angle side sets up the second track right-angle side in the track groove, and the extension line and the spacing lug alignment of first baffle right-angle side.

5. A luggage brake arrangement according to claim 1, wherein: the upper end surface of the inner seat is provided with a first horizontal slot extending along the horizontal direction, and one side of the upper end of the inner seat is provided with a horizontal hole communicated with the first horizontal slot; the surface of the outer seat is provided with an indicating hole communicated with the first horizontal slot, wherein the first horizontal slot is internally provided with a return spring, and one end of the first horizontal slot is provided with a state indicating sliding screen with a first inclined surface; the top end of the state indication sliding screen is attached with a distinguishing label; one end of the return spring is connected with the inner wall of the first horizontal groove, the other end of the return spring is abutted against one end of the state indicating sliding screen, and a first inclined surface of the state indicating sliding screen extends to the horizontal hole and is positioned above the lifting slide block; the barb hooks the lifting slide block to move upwards by pulling the brake pulling key, the first inclined surface of the state indication sliding screen is extruded in the process of moving the lifting slide block upwards, the state indication sliding screen is pushed to move towards the direction of the return spring, and the distinguishing label at the upper end of the state indication sliding screen is aligned with the indication hole.

6. A luggage brake arrangement according to claim 5, wherein: the inner wall of the first horizontal slot is provided with an inserting rod parallel to the length direction of the state indicating sliding screen, and the state indicating sliding screen is provided with inserting holes penetrating through the front end and the rear end; the rear end of the state indicating sliding screen is provided with a spring fixing groove corresponding to the return spring; the state indication sliding screen is placed in the first horizontal groove, the inserting rod penetrates through the inserting hole, and one end of the return spring abuts against the spring fixing groove.

7. A luggage brake arrangement according to claim 5, wherein: still include the spring holder, the rear side of interior seat upper end is provided with the lid that closes the breach with first horizontal fluting intercommunication, wherein the spring holder can be dismantled and close breach department at the lid, just return spring keeps away from the one end of spring fixed slot and supports the inner wall of ending at the spring holder.

8. A luggage brake arrangement according to claim 1, wherein: the front end of the lifting slide block is provided with a slide block vertical groove extending along the vertical direction, and the slide block vertical groove is internally provided with a tension spring and a transmission slide block freely sliding along the slide block vertical groove direction, wherein one end of the tension spring is fixedly connected with the slide block vertical groove, and the other end of the tension spring is connected with the transmission slide block; wherein one end of the transmission line far away from the brake wheel set is connected to the transmission slide block.

Technical Field

The invention relates to the field of draw-bar luggage, in particular to a luggage brake device.

Background

The draw-bar box is a common article for daily use, and the bottom of the draw-bar box is provided with the rollers, so that the draw-bar box is convenient and labor-saving to pull and is popular with people. However, when people take the draw-bar box to take a bus or a train, if the draw-bar box is placed on the floor in the train, the draw-bar box is easy to slide and touch other passengers in the acceleration or deceleration process of the train due to the action of inertia, which brings inconvenience to the users, and in more serious cases, the draw-bar box can injure other passengers.

Disclosure of Invention

In order to solve the problems, the invention provides a luggage case brake device, which realizes braking or brake release by manually pulling a brake toggle key, is labor-saving and is convenient to operate. When the brake is not used, the brake has indication of color or characters and the like.

In order to achieve the purpose, the invention adopts the technical scheme that: a trunk brake device comprises a brake control device, a plurality of brake wheel sets and a plurality of transmission lines; the brake control device comprises an inner seat, a limiting spring, a lifting slide block hanging rod, a lifting slide block, an outer seat and a brake pull key, wherein the lifting slide block is arranged on one side of the inner seat and freely slides along the vertical direction; one end of each transmission line is connected with the lifting slide block, and the other end of each transmission line is connected with the brake wheel set; the surface of the front end of the inner seat is provided with a track groove, and the central position of the track groove is provided with a V-shaped limiting lug; the surface of the lifting slide block hanging rod is provided with a first transverse shaft, and the lifting slide block hanging rod is movably assembled on the back surface of the lifting slide block through the first transverse shaft; the back of one end of the lifting slide block hanging rod is provided with a second transverse shaft positioned in the track groove; one end of the limiting spring is fixed on the inner seat, and the other end of the limiting spring is abutted against the other tail end of the lifting slide block hanging rod; the brake pulling key is pulled to enable the barb to hook the lifting slide block to move upwards, the lifting slide block drives the transmission line to move upwards and brake of the brake wheel set is achieved, the lifting slide block drives the second transverse shaft of the lifting slide block hanging rod to move upwards, the second transverse shaft rotates towards the direction of the limiting spring by taking the first transverse shaft as the center under the action of the limiting spring and is clamped at the top end of the limiting convex block, and the lifting slide block keeps a lifting state; and the brake pulling key is pulled again, the second transverse shaft on the hanging rod of the lifting slide block is separated from the limiting bump under the action of the limiting spring, and the lifting slide block moves downwards under the stretching of the transmission line to release the brake. When the second transverse shaft is clamped at the top end of the limiting lug, the limiting spring is not contacted with the other tail end of the lifting slide block hanging rod, so that the second transverse shaft is prevented from reversely running to the right side along the track.

Further, still include first fixed axle, cup joint the key return torsional spring of pulling on first fixed axle, first mounting hole has been seted up on the surface of outer seat, just the brake is pulled the key activity and is set up in first mounting hole through first fixed axle.

Furthermore, the track groove is of a right-angled triangle structure, the left side of the track groove is a first track right-angled side extending along the vertical direction, the upper end of the track groove is a second track right-angled side extending along the horizontal direction, and the right side of the track groove is a first track bevel edge connecting the first track right-angled side and the second track right-angled side; the brake pulling key is pulled to enable the barb to hook the lifting slide block to move upwards, the lifting slide block drives the second transverse shaft of the lifting slide block hanging rod to move upwards along the right-angle side edge of the first track, the second transverse shaft rotates towards the direction of the first bevel edge by taking the first transverse shaft as the center under the action of the limiting spring and is clamped at the top end of the limiting lug, and the lifting slide block keeps a lifting state; and pulling the brake pulling key again, separating the second transverse shaft on the lifting slide block hanging rod from the limiting convex block under the action of the limiting spring, and moving the second transverse shaft of the lifting slide block hanging rod to the tail end of the right-angle side edge of the first track along the first bevel edge. The right triangle is not specially configured, the distance between the top end and the bottom end of the track is determined by the distance needed for stretching the brake transmission line, and therefore the outer side of the track can be made into different shapes.

Furthermore, a baffle plate which is in a right-angled triangle shape and is positioned above the limiting lug is convexly arranged in the track groove, wherein the baffle plate comprises a first baffle plate bevel edge positioned on the right side of the baffle plate, a first baffle plate right-angle edge positioned on the left side of the baffle plate and extending along the vertical direction, and a second baffle plate right-angle edge positioned on the upper end of the baffle plate and extending along the horizontal direction; wherein the second baffle right-angle side sets up the second track right-angle side in the track groove, and the extension line on first baffle right-angle side corresponds with spacing lug.

Furthermore, a first horizontal slot extending along the horizontal direction is formed in the upper end surface of the inner seat, and a horizontal hole communicated with the first horizontal slot is formed in one side of the upper end of the inner seat; the surface of the outer seat is provided with an indicating hole communicated with the first horizontal slot, wherein the first horizontal slot is internally provided with a return spring, and one end of the first horizontal slot is provided with a state indicating sliding screen with a first inclined surface; the top end of the state indication sliding screen is attached with or printed with a distinguishing label; one end of the return spring is connected with the inner wall of the first horizontal groove, the other end of the return spring is abutted against one end of the state indicating sliding screen, and a first inclined surface of the state indicating sliding screen extends to the horizontal hole and is positioned above the lifting slide block; the barb hooks the lifting slide block to move upwards by pulling the brake pulling key, the first inclined surface of the state indication sliding screen is extruded in the process of moving the lifting slide block upwards, the state indication sliding screen is pushed to move towards the direction of the return spring, and the distinguishing label at the upper end of the state indication sliding screen is aligned with the indication hole.

Furthermore, the inner wall of the first horizontal slot is provided with an insertion rod parallel to the length direction of the state indication sliding screen, and the state indication sliding screen is provided with insertion holes penetrating through the front end and the rear end; the rear end of the state indicating sliding screen is provided with a spring fixing groove corresponding to the return spring; the state indication sliding screen is placed in the first horizontal groove, the inserting rod penetrates through the inserting hole, and one end of the return spring abuts against the spring fixing groove.

Further, still include the spring holder, the rear side of interior seat upper end is provided with the lid that communicates with first horizontal fluting and closes the breach, wherein the spring holder can be dismantled and close breach department at the lid, just return spring keeps away from the one end of spring fixed slot and supports and end the inner wall at the spring holder.

Furthermore, the front end of the lifting slide block is provided with a slide block vertical groove extending along the vertical direction, and a tension spring and a transmission slide block freely sliding along the direction of the slide block vertical groove are assembled in the slide block vertical groove, wherein one end of the tension spring is fixedly connected with the slide block vertical groove, and the other end of the tension spring is connected with the transmission slide block; wherein one end of the transmission line far away from the brake wheel set is connected to the transmission slide block.

The invention has the beneficial effects that: when a user needs to brake, the user only needs to pull the brake pulling key outwards, the barb below the brake pulling key is upwards tilted to lift the lifting sliding block, and the transmission line is pulled to brake the brake wheel set; the lifting slide block drives a second transverse shaft of the lifting slide block hanging rod to move upwards, and the second transverse shaft rotates towards the direction of the limiting spring by taking the first transverse shaft as the center under the action of the limiting spring and is clamped at the top end of the limiting bump, so that the brake wheel set keeps a brake state; when the unlocking is needed, the brake pulling key is pulled again, the second transverse shaft on the lifting slide block hanging rod is separated from the limiting bump under the action of the limiting spring, and the lifting slide block moves downwards under the stretching of the transmission line to release the brake. The brake control mechanism can control the brake wheel set to start or unlock the brake by pulling the brake pulling key by a hand, thereby being labor-saving and convenient to operate.

Drawings

Fig. 1 is a schematic view of the overall structure of the braking system of the present invention.

Fig. 2 is a schematic structural view of the brake control apparatus of the present invention.

Fig. 3 is an exploded view of the brake control device of the present invention.

FIG. 4 is a schematic view of the brake control device of the present invention without the cover plate and the inner seat.

FIG. 5 is a schematic structural view of the brake control device of the present invention with the brake released and the cover and outer seat omitted.

Fig. 6 is a schematic perspective view of fig. 5 with the upper slider omitted.

Fig. 7 is a front view of fig. 5 with the slider lifted upward omitted.

FIG. 8 is a schematic structural view of the brake control device of the present invention in a braking state with the cover plate and the outer seat omitted.

Fig. 9 is a front view of fig. 8 with the slider lifted upward omitted.

Fig. 10 is a schematic view of the configuration of the status indication slide screen.

The reference numbers illustrate: the brake control device 1, the transmission line 2, the brake wheel group 3, the outer seat 11, the first mounting hole 111, the indicating hole 112, the inner seat 12, the inner seat vertical groove 121, the horizontal hole 122, the first horizontal groove 123, the inserting rod 1231, the limiting lug 124, the baffle 125, the first baffle right-angle side edge 1251, the second baffle right-angle side edge 1252, the first baffle bevel edge 1253, the rail groove 126, the first rail right-angle side edge 1261, the second rail right-angle side edge 1262, the first rail bevel edge 1263 and the brake pull key 13, the lifting device comprises a barb 131, a first fixed shaft 132, a key-pulling return torsion spring 133, a cover plate 14, a lifting slide block 15, a cross bar 151, a slide block vertical groove 152, a transmission slide block 153, a tension spring 154, a state indication slide screen 16, a first inclined plane 161, a return spring 162, a spring seat 163, a distinguishing label 164, a plug hole 165, a spring fixing groove 166, a limiting spring 17, a lifting slide block hanging rod 18, a first transverse shaft 181 and a second transverse shaft 182.

Detailed Description

Referring to fig. 1-10, the present invention relates to a brake device for a luggage, which comprises a brake control device 1, a plurality of brake wheel sets 3, and a plurality of transmission lines 2; the brake control device 1 comprises an inner seat 12, a limiting spring 17, a lifting slide block hanging rod 18, a lifting slide block 15 which is arranged on one side of the inner seat 12 and freely slides along the vertical direction, an outer seat 11 which is arranged on the upper end surface of the inner seat 12, and a brake pull key 13 which is provided with a barb 131 and is movably assembled on the outer seat 11; wherein, the two sides of the lifting slide block 15 are also provided with a cross bar 151; one end of each of the plurality of transmission lines 2 is connected with the lifting slide block 15, and the other end of each of the transmission lines 2 is connected with the brake wheel set 3; a track groove 126 is formed in the front end surface of the inner seat 12, and a V-shaped limiting bump 124 is arranged in the center of the track groove 126; the surface of the lifting slide block hanging rod 18 is provided with a first transverse shaft 181, and the lifting slide block hanging rod 18 is movably assembled on the back surface of the lifting slide block 15 through the first transverse shaft 181; the back of one end of the upper lifting slide block hanging rod 18 is provided with a second transverse shaft 182 positioned in the track groove 126; one end of the limit spring 17 is fixed on the inner seat 12, and the other end of the limit spring 17 is abutted against the other end of the lifting slide block hanging rod 18; the brake key 13 is pulled to make the barb 131 hook the cross bar 151 of the lifting slide block 15 to move upwards, the lifting slide block 15 drives the transmission line 2 to move upwards and realize the braking of the braking wheel set 3, the lifting slide block 15 drives the second transverse shaft 182 of the lifting slide block hanging rod 18 to move upwards, the second transverse shaft 182 rotates towards the direction of the limit spring 17 by taking the first transverse shaft 181 as the center under the action of the limit spring 17 and is clamped at the top end of the limit bump 124, and the lifting slide block 15 keeps the lifting state; and when the brake key 13 is pulled again, the second transverse shaft 182 on the lifting slide block hanging rod 18 is separated from the limit bump 124 under the action of the limit spring 17, and the lifting slide block 15 moves downwards under the stretching of the transmission line 2 to release the brake.

An inner seat vertical groove 121 extending in the vertical direction is formed in one side of the inner seat 12, wherein the upward lifting slider 15 is disposed in the inner seat vertical groove 121 and freely slides in the vertical direction, and a cover plate 14 covers the surface of the inner seat vertical groove 121.

When a user needs to brake, the user only needs to pull the brake key 13 outwards, the barb 131 below the brake key 13 is upwarped to lift the lifting slide block 15, and the transmission line 2 is pulled to brake the brake wheel set 3; the lifting slide block 15 drives the second transverse shaft 182 of the lifting slide block hanging rod 18 to move upwards, and the second transverse shaft 182 rotates towards the direction of the limit spring 17 by taking the first transverse shaft 181 as the center under the action of the limit spring 17 and is clamped at the top end of the limit bump 124, so that the brake wheel set 3 keeps a brake state; when the unlocking is needed, the brake toggle key 13 is pulled again, the second transverse shaft 182 on the lifting slide block hanging rod 18 is separated from the limiting lug 124 under the action of the limiting spring 17, and the lifting slide block 15 moves downwards under the stretching of the transmission line 2 to release the brake. The brake control mechanism can control the brake wheel set 3 to start or unlock the brake by pulling the brake key 13 with a hand, thereby being labor-saving and convenient to operate.

Referring to fig. 5-9, in the initial state, the limiting spring 17 is not in the compressed state, and at this time, the limiting spring 17 does not apply an external force to lift the hanging rod 18 of the slider; when the brake toggle key 13 is pulled to make the barb 131 hook the lifting slide block 15 to move upwards, and the lifting slide block 15 drives the second transverse shaft 182 of the lifting slide block hanging rod 18 to move upwards, and the limit spring 17 is compressed in the moving process, the limit spring 17 applies acting force to the lifting slide block hanging rod 18 to push the lifting slide block hanging rod 18, and the second transverse shaft 182 rotates around the first transverse shaft 181 as a center to the direction of the limit spring 17 under the action of the limit spring 17 and is clamped at the top end of the limit bump 124 (the top end of the limit bump 124 is provided with a concave groove to make the lifting slide block 15 positioned at a high position and keep a braking state); when the second horizontal shaft 182 is clamped at the top end of the limit lug 124, the limit spring 17 is not yet contacted with the other end of the upper slide block hanging rod 18, so that the second horizontal shaft 182 does not reversely move to the right side along the track; when the unlocking is needed, the brake toggle 13 is pulled again, at this time, the limit spring 17 contacts the other end of the lifting slide block hanging rod 18 and is in a compressed state, the second transverse shaft 182 on the lifting slide block hanging rod 18 is separated from the limit bump 124 under the action of the limit spring 17, and the lifting slide block 15 moves downwards under the stretching of the transmission line 2 to realize the brake releasing.

It should be noted that, what is mainly discussed in this application is the specific structure of the brake control device 1, that is, the brake of the brake wheel set 3 is realized by controlling the lifting of the transmission line 2 through the brake control device 1, and the working principle of the brake control device is similar to that of pulling the transmission line 2 of a bicycle to realize the braking effect. The brake wheel set 3 in this application adopts the conventional brake wheel set 3 in the prior art, so the specific structure of the brake wheel set 3 is not described redundantly.

Referring to fig. 3, the brake device further includes a first fixing shaft 132 and a trigger return torsion spring 133 sleeved on the first fixing shaft 132, a first mounting hole 111 is formed on the surface of the outer seat 11, and the brake trigger 13 is movably disposed in the first mounting hole 111 through the first fixing shaft 132. In the use, the user can realize the brake function through pulling the brake key 13 that is in first mounting hole 111, moreover because pull key return torsional spring 133 cup joints on first fixed axle 132, releases brake key 13 promptly as the user, and brake key 13 can reset under the effect of pulling key return torsional spring 133.

Referring to fig. 5, further, the rail groove 126 is a right triangle, the left side of the rail groove 126 is a first rail right-angle side 1261 extending along the vertical direction, the upper end of the rail groove 126 is a second rail right-angle side 1262 extending along the horizontal direction, and the right side of the rail groove 126 is a first rail hypotenuse 1263 connecting the first rail right-angle side 1261 and the second rail right-angle side 1262; the brake key 13 is pulled to make the barb 131 hook the cross bar 151 of the lifting slide block 15 to move upwards, the lifting slide block 15 drives the second transverse shaft 182 of the lifting slide block hanging rod 18 to move upwards along the first track right-angle side 1261, the second transverse shaft 182 rotates to the first bevel edge direction by taking the first transverse shaft 181 as the center under the action of the limiting spring 17 and is clamped at the top end of the limiting lug 124, and the lifting slide block 15 keeps the lifting state; when the key 13 is pulled again, the second horizontal shaft 182 of the lifting slider hanging rod 18 is disengaged from the limiting protrusion 124 under the action of the limiting spring 17, and the lifting slider 15 moves to the end of the first rail right-angle side 1261 along the first oblique edge. The baffle 125 which is in a right-triangle shape and is positioned above the limiting bump 124 is convexly arranged in the track groove 126, wherein the baffle 125 comprises a first baffle hypotenuse 1253 positioned on the right side of the baffle 125, a first baffle cathetus 1251 positioned on the left side of the baffle 125 and extending along the vertical direction, and a second baffle hypotenuse 1252 positioned on the upper end of the baffle 125 and extending along the horizontal direction; wherein second baffle right-angle edge 1252 is disposed at the second track right-angle edge of track slot 126 and the extension line of first baffle right-angle edge 1251 is aligned with limit tab 124.

It should be noted that the right triangle of the track groove 126 is only used to describe the preferred embodiment of the present invention, and does not limit the scope of the present invention, and the distance between the top end and the bottom end of the track groove 126 is determined by the distance required to stretch the brake transmission line, so the outer side of the track may be shaped differently.

In the present application, the function of the baffle 125 is to ensure that the second transverse shaft 182 can be clamped on the limit projection 124; when the brake key 13 is pulled to enable the barb 131 to hook the lifting slide block 15 to move upwards, and the lifting slide block 15 drives the second transverse shaft 182 of the lifting slide block hanging rod 18 to move upwards along the first track right-angle side 1261, and the limiting spring 17 is in a compressed state in the moving process, the limiting spring 17 applies acting force to the lifting slide block hanging rod 18 to push the lifting slide block hanging rod 18, and the second transverse shaft 182 rotates towards the limiting spring 17 by taking the first transverse shaft 181 as the center under the action of the limiting spring 17, and at the moment, the second transverse shaft 182 abuts against the first baffle 125 right-angle side of the baffle 125, and as the extension line of the first baffle right-angle side 1251 is aligned with the limiting bump 124, the brake key 13 is released, and the second transverse shaft 182 moves downwards and is clamped at the top end of the limiting bump 124; (the top end of the limit bump 124 is provided with a concave groove to ensure that the upper lifting slide block 15 is positioned at a high position and keeps a braking state); when the unlocking is needed, the brake toggle key 13 is pulled again, the lifting slide block 15 is lifted a little to drive the lifting slide block hanging rod 18 to move upwards a little, the second transverse shaft 182 on the lifting slide block hanging rod 18 is separated from the concave groove under the action of the limiting spring 17, the lifting slide block 15 descends, the braking state is relieved, and the wheel set returns to rotate freely.

Referring to fig. 3 and 10, further, a first horizontal slot 123 extending along the horizontal direction is formed on the upper end surface of the inner seat 12, and a horizontal hole 122 communicating with the first horizontal slot 123 is formed on one side of the upper end of the inner seat 12; the surface of the outer seat 11 is provided with an indicating hole 112 communicated with the first horizontal slot 123, wherein the first horizontal slot 123 is internally provided with a return spring 162, and one end of the state indicating sliding screen 16 is provided with a first inclined surface 161; the top end of the status indicating slide 16 is attached to a distinguishing label 164; one end of the return spring 162 is connected with the inner wall of the first horizontal slot 123, and the other end of the return spring 162 abuts against one end of the status indication sliding screen 16, and the first inclined surface 161 of the status indication sliding screen 16 extends to the horizontal hole 122 and is located above the lifting slider 15; by pulling the brake key 13, the barb 131 catches on the lifting slider 15 and moves upward, and the first inclined surface 161 of the status indicating slide 16 is pressed and the status indicating slide 16 is pushed to move toward the return spring 162 during the upward movement of the lifting slider 15, so that the distinguishing label 164 at the upper end of the status indicating slide 16 is aligned with the indicating hole 112.

That is, in this application, the distinguishing label 164 is set to be a red label and a green label, that is, when the user pulls the brake pull key 13 and makes the barb 131 hook the lifting slider 15, so that the lifting slider 15 moves upwards and presses the first inclined surface 161 of the status indication sliding screen 16, and pushes the status indication sliding screen 16 to move toward the return spring 162, and makes the red label on the upper end of the status indication sliding screen 16 align with the indication hole 112, that is, the red label displays, and warns the user that the wheel set is currently in the braking status, and the luggage case does not move.

When the brake key 13 is pulled again to unlock the brake and the lifting slide block 15 falls, the state indication slide screen 16 is reset under the action of the return spring 162, and the green label at the upper end of the state indication slide screen 16 is aligned with the indication hole 112, i.e. the green label is displayed, so that the user is informed that the brake wheel set 3 is not braked and the trunk is in a normal use state. It should be noted that the distinguishing labels 164 in the present application can be replaced with other distinguishing labels 164 according to actual needs, such as the word labels "GO" and "STOP".

Further, the inner wall of the first horizontal slot 123 is provided with an insertion rod 1231 parallel to the length direction of the state indication sliding screen 16, and the state indication sliding screen 16 is provided with an insertion hole 165 penetrating through the front end and the rear end; a spring fixing groove 166 corresponding to the return spring 162 is formed at the rear end of the state indicating sliding screen 16; wherein the status indicating sliding screen 16 is placed in the first horizontal slot 123, the inserting rod 1231 passes through the inserting hole 165, and one end of the return spring 162 abuts against the spring fixing groove 166. In the present embodiment, by providing the inserting hole 165 and the inserting rod 1231, the state indicating sliding screen 16 can move in the set direction (the length direction of the inserting rod 1231) by the cooperation of the inserting hole 165 and the inserting rod 1231, and the situation of deviation does not occur; also, the spring fixing groove 166 is set to allow the return spring 162 to perform a return function better.

Further, still include spring holder 163, the rear side of interior seat 12 upper end is provided with the lid breach that closes with first horizontal fluting 123 intercommunication, wherein spring holder 163 can be dismantled and close breach department at the lid, just return spring 162 keeps away from the one end of spring fixed slot 166 and stops at the inner wall of spring holder 163. The spring seat 163 is provided to facilitate replacement and maintenance of the various components located within the first horizontal slot 123 by a user.

Further, a slider vertical groove 152 extending in the vertical direction is formed in the front end surface of the upward lifting slider 15, and a tension spring 154 and a transmission slider 153 freely sliding in the slider vertical groove 152 direction are assembled in the slider vertical groove 152, wherein one end of the tension spring 154 is fixedly connected with the slider vertical groove 152, and the other end of the tension spring 154 is connected with the transmission slider 153; wherein, one end of the transmission line 2 far away from the braking wheel set 3 is connected to the transmission slide block 153. When the lifting slide block 15 is lifted by the brake key 13, the small slide block is pulled by the tension spring 154, and the small slide block pulls the transmission steel wire and the wheel set mechanism below to brake. During normal use, because of extension spring 154 start-up power is great, can not pulled open, when the brake wheel received the hindrance, extension spring 154 just can be pulled open, plays the effect of protection brake wheelset 3.

The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.