Suitcase type cart

Abstract

The utility model discloses a luggage type cart, which relates to the field of luggage, and adopts the technical scheme that the luggage type cart comprises a luggage body, and the luggage body is provided with a wheel leg assembly, a seat assembly and a handle assembly; the luggage body is downwards provided with the wheel leg assembly, and the wheel leg assembly is used for moving the luggage body; the seat assembly is arranged on the front side of the upper part of the luggage body and is used for providing a folding seat, and the handle assembly is arranged on the rear side of the luggage body and is used for pushing the luggage body to move by hands. The suitcase and the seat are ingeniously combined, the function of the seat can be provided while articles are carried through folding, a child can be easily carried while luggage is carried, and the suitcase and the cart are carried at the same time, so that the suitcase is more portable when people go out.

Description

Technical Field

[0001] This utility model relates to the field of luggage, and in particular to luggage trolleys. Background Technology

[0002] Families with children need to bring not only their children but also a lot of luggage when going out. Typically, they need to carry both a stroller and a suitcase. In fact, it is not convenient for one person to carry both a stroller and a suitcase at the same time. Currently, there are related solutions to this problem, such as a suitcase-style folding stroller disclosed in patent document CN1119942B. It uses a folding method to store the stroller and provides a larger bottom storage space. However, it is actually the same as a traditional stroller and does not have the function of a suitcase. It is not possible to pack items, and items can easily fall out when carried. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a luggage-type stroller that cleverly combines luggage and a seat. It can carry items while providing a seat through folding, making it easy to carry children while moving luggage. It can carry both luggage and a stroller at the same time, making it more portable for outings.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a luggage-type trolley, including a luggage body, wherein the luggage body is provided with a wheel leg assembly, a seat assembly and a handle assembly;

[0005] The wheel and leg assembly is arranged downwards on the main body of the bag, and the wheel and leg assembly is used for moving the main body of the bag; the seat assembly is arranged on the upper front side of the main body of the bag, and the seat assembly is used to provide a folding seat; the handle assembly is arranged on the rear side of the main body of the bag, and is used to push the main body of the bag by hand.

[0006] This solution incorporates a seat assembly within the luggage body, which can be folded to provide a seat for children to sit on. Adults can use the handle assembly to push the luggage body, which is also equipped with wheels for easy movement. It functions as both a stroller and a luggage bag, making it more convenient to carry luggage and children when traveling.

[0007] Preferably, a set of wheel leg assemblies is provided on each of the two sides of the bag body;

[0008] The wheel-leg assembly includes a guide rail, a sliding sleeve, a wheel rod, and a roller;

[0009] The bag body is vertically provided with the guide rail, the sliding sleeve is slidably engaged with the guide rail, and a locking mechanism is provided between the guide rail and the sliding sleeve, the locking mechanism fixing the sliding sleeve to the upper or lower section of the guide rail;

[0010] The upper ends of the two wheel rods are respectively located on both sides of the guide rail, and the lower ends of the two wheel rods are inclined in opposite directions. The wheel rods slide relative to the bag body. The upper end of the wheel rod is connected to the sliding sleeve through a connecting rod, and the lower end of the wheel rod is provided with a roller.

[0011] Since the upper end of the wheel rod is connected to the sliding sleeve via a connecting rod, the wheel rod will retract when the sliding sleeve is located at the upper part of the guide rail, and will extend when the sliding sleeve is located at the lower part of the guide rail. Furthermore, since the two wheel rods are inclined in opposite directions, when the wheel rod extends, the bottom of the wheel rod will be further away, in order to lower the overall center of gravity and better play the role of moving and bearing. When retracted, the distance is closer, which can occupy less space.

[0012] Preferably, the locking mechanism includes a sliding rod, a first locking block, and a second locking block;

[0013] The sliding rod is axially slidably fitted inside the guide rail, and a reset elastic element is provided between the sliding rod and the guide rail. The reset elastic element slides the sliding rod toward the first end of the guide rail.

[0014] The guide rail has a control window on its side wall, which is located at the top of the guide rail in this embodiment. The sliding rod has a vertical push slope on its side wall; the control window is slidably fitted with a sloped top rod, the front end of which corresponds to the vertical push slope; wherein the front slope of the sloped top rod is close to the upper end of the guide rail, and the vertical push slope is adapted to the front slope of the sloped top rod.

[0015] The first locking block and the second locking block are respectively installed on the upper and lower sections of the guide rail.

[0016] The first locking block is provided with a first control slope and a first pin; the side wall of the sliding rod is provided with a first locking slope adapted to the first control slope, the upper side wall of the guide rail is provided with a first locking hole adapted to the first pin, and the first locking block is provided with a first locking elastic element that pushes toward the first locking hole; wherein the first control slope, the first locking slope and the vertical push slope are inclined in the same direction.

[0017] The second locking block is provided with a second control ramp and a second pin; the side wall of the sliding rod is provided with a second locking ramp adapted to the second control ramp, the lower side wall of the guide rail is provided with a second locking hole adapted to the second pin, and the second locking block is provided with a second locking elastic element that pushes toward the second locking hole;

[0018] Only one set of the first locking ramp and the first control ramp, and the second locking ramp and the second control ramp are aligned at any given time;

[0019] When the inclined push rod slides away from the end of the vertical push inclined plane;

[0020] Under the push of the reset elastic element, the sliding rod slides downward; the first locking slope pushes the first control slope, the first locking slope and the first control slope are misaligned, the first locking block slides away from the first locking hole, and the first pin retracts into the first locking hole; the second locking slope and the second control slope are aligned, the second locking elastic element pushes the second locking block to slide into the second locking hole, and the second pin extends from the second locking hole to the outside; wherein the inclination direction of the second control slope, the second locking slope and the vertical push slope is opposite.

[0021] When the inclined push rod slides towards the end closer to the vertical push inclined surface;

[0022] Under the push of the inclined top rod against the vertical inclined surface, the sliding rod slides upward; the second locking inclined surface pushes the second control inclined surface to align, the second locking inclined surface pushes the second control inclined surface to disalign, the second locking block slides away from the second locking hole, and the second pin retracts into the second locking hole; the first locking inclined surface aligns with the first control inclined surface, the first locking elastic element pushes the first locking block to slide towards the first locking hole, and the first pin extends from the first locking hole to the outside;

[0023] The sliding sleeve is provided with an outer hole that is adapted to the first pin portion or the second pin portion.

[0024] In the initial state, the sliding sleeve is located in the first upper section and is engaged in the outer hole by the first pin extending to the outside. The sliding sleeve is locked in the upper section of the slide rail. At this time, the wheel rod retracts into the body of the bag and is locked.

[0025] When the wheel rod needs to be extended, the inclined top rod slides away from the end of the vertical push inclined surface; the first pin retracts into the first locking hole, the sliding sleeve is unlocked in the upper section, and under the action of the wheel rod's own weight, the sliding sleeve slides down to the lower section, the second pin extends from the second locking hole to the outside, and the second pin is inserted into the outer hole, thereby locking the sliding sleeve in the lower section of the slide rail.

[0026] When the wheel rod needs to be retracted, under the drive of external force, the inclined top rod slides towards the end close to the vertical push inclined surface. The second pin retracts into the second locking hole, and the sliding sleeve is unlocked in the lower section. Under the action of the weight of the bag body itself, the sliding sleeve slides upward to the upper section. The first pin extends from the second locking hole to the outside and is engaged in the outer hole, thereby locking the sliding sleeve in the upper section of the slide rail.

[0027] The above methods enable the sliding sleeve to be locked and unlocked at the upper and lower ends, thereby allowing the wheel legs to be extended and retracted.

[0028] Preferably, a storage slot is provided on the front exterior of the bag body, and rotating bases are respectively provided on both sides of the upper end of the storage slot. The seat assembly includes armrests, a backrest, and a seat. Armrest turntables are provided at both ends of the armrests corresponding to two rotating bases. Backrest rotating rings are provided on both sides of the backrest corresponding to two rotating bases. Seat rotating rings are provided on both sides of the seat corresponding to two rotating bases. The rotating bases, armrest turntables, backrest rotating rings, and seat rotating rings are rotatably connected.

[0029] The inner surface of the rotating base is provided with a rotating cavity groove; the outer surface of the armrest turntable is provided with an outer armrest cavity groove.

[0030] The rotating cavity and the outer cavity of the armrest engage to form an outer locking cavity;

[0031] The outer locking cavity contains a first locking element and a first driving element distributed from the outside to the inside.

[0032] The first driving member is located in the outer cavity groove of the armrest, and the first driving member can slide axially relative to the outer cavity groove of the armrest but cannot rotate circumferentially;

[0033] The side wall of the outer locking cavity is axially provided with a first guide member from the rotating cavity groove to the outer cavity groove of the handrail. The first locking member can slide axially relative to the outer locking cavity through the first guide member but cannot rotate circumferentially. The first guide member includes a first outer locking guide section located in the rotating cavity groove and a second outer locking guide section located in the outer cavity groove of the handrail.

[0034] A first spring is provided between the first locking member and the rotating cavity groove, and the first spring pushes the first locking member and the first driving member to slide towards the inner end of the outer locking cavity;

[0035] During the rotation of the back plate, the first driving member is pushed to slide towards the outer end of the rotating shaft, so that the first locking member is only adapted to the first external locking guide section or is adapted to both the first external locking guide section and the second external locking guide section at the same time;

[0036] When the chair is not in use, fold the armrests, backrest, and seat into the storage compartment, with the backrest acting as an outer cover to cover the storage compartment. When the chair is needed, simply rotate the armrests, backrest, and seat to unfold them.

[0037] The rotating base, armrest turntable, back panel turntable, and seat turntable rotate and cooperate, allowing for adjustment of their relative angles and facilitating folding and storage. The outer locking cavity is equipped with a first guide, enabling the first locking member to slide axially through the guide. If the first locking member is located solely in the rotating cavity or the armrest outer cavity, relative rotation between the armrest turntable and the rotating base is possible. However, if the first locking member is located in both the armrest outer cavity and the rotating cavity, due to the presence of the first guide, the first locking member can only slide axially within both the outer and rotating cavity, preventing circumferential rotation between the armrest turntable and the rotating base.

[0038] The specific state of the first locking member is determined by the first driving member and the first spring. If the first driving member provides a thrust to push the first locking member, the first locking member will be located in both the outer cavity groove and the rotating cavity groove of the armrest at the same time. If the first driving member does not provide a thrust, the first locking member will be located only in the rotating cavity groove under the push of the first spring.

[0039] Preferably, a drive plate is provided on the outside of the handrail turntable, the drive plate is provided with the outer port of the control window, the outer end of the inclined top rod extends to the outside of the control window, and the outer end of the inclined top rod is provided with a wheel lock inclined surface corresponding to the drive plate;

[0040] The side wall of the outer cavity groove of the handrail is provided with an outer locking groove, the outer locking groove includes a first outer locking section and a second outer locking section, the first outer locking section is located on the outer end side of the rotating shaft relative to the second outer locking section;

[0041] The inner end face of the first driving member is provided with a first single inclined surface driving tooth corresponding to the outer locking groove, and the first single inclined surface driving tooth slides axially with the outer locking groove.

[0042] The inner surface of the handrail turntable is provided with a locking protrusion. The outer wall of the locking protrusion includes a first protrusion section and a second protrusion section from the outer end to the inner end. The first protrusion section is located outside the second outer locking section, and the bottom of the groove of the second outer locking section passes through the outer wall of the first protrusion section.

[0043] The outer wall of the locking boss is rotatably fitted with the back plate rotating ring, and the inner edge of the outer end of the back plate rotating ring is provided with a first arc-shaped unlocking groove corresponding to the first outer locking segment.

[0044] When the rotating base, armrest turntable, and back panel are in the folded state, the first arc-shaped unlocking groove and the second outer locking section are misaligned. The end of the first arc-shaped unlocking groove pushes the first single-sloping-face drive tooth to move to the first outer locking section. The first drive member pushes the first locking member to move towards the outer end of the rotating shaft, so that the first locking member is simultaneously located in the armrest outer cavity groove and the rotating cavity groove. The drive plate, as the armrest turntable rotates, squeezes the wheel lock slope and pushes the slope top rod to move into the control window.

[0045] The back panel rotates relative to the armrest turntable in the unfolding direction until the first arc segment unlocking groove and the second outer locking segment coincide. The first spring pushes the first locking member to move towards the inner end of the rotating shaft, so that the first locking member is only located in the rotating cavity groove. The armrest turntable is rotated so that the armrest turntable is in the unfolded state relative to the rotating base. The drive plate moves away from the inclined top rod as the armrest turntable rotates, and the inclined top rod moves outward from the control window.

[0046] The side wall of the locking protrusion is provided with at least two positioning slots;

[0047] The back plate is slidably fitted with a spring-loaded pin that abuts against the side wall of the locking protrusion. The front end of the spring-loaded pin extends to the positioning slot, and the spring-loaded pin is adapted to the inclined surface of the outlet hole.

[0048] The drive plate can push the inclined top rod when the armrest is folded to fix the wheel leg assembly into the body of the bag. When the armrest is opened, the drive plate moves away from the inclined top rod, the upper section of the guide rail is unlocked, and the wheel leg assembly can be opened and locked in the lower section of the guide rail with a sliding sleeve.

[0049] The back plate rotates in a circle, causing the end of the first arc-shaped unlocking groove to push the first single-sloping drive tooth, thereby controlling the first locking member to be located alone in the rotating cavity groove or simultaneously in the armrest outer cavity groove and the rotating cavity groove.

[0050] By using a spring-loaded latch and a positioning slot, the position of the back panel relative to the armrest can be easily locked to prevent it from rotating.

[0051] Preferably, the outer edge of the backrest is provided with a spring latch that abuts against the inner wall of the storage slot, and the inner wall of the storage slot is provided with a first lock hole for the spring latch to be inserted.

[0052] The backrest has a hinged wrench with a hook, and the spring latch has a hook hole for the hook to engage.

[0053] One end of the first drive cable is connected to the wrench, and the other end of the first drive cable is connected to the spring lock tongue;

[0054] In the initial state, the backrest is fastened to the storage slot shown, the spring latch is inserted forward into the positioning slot, the spring latch pulls the wrench through the first drive cable, the wrench is against the back of the backrest, and the latch extends out and is inserted into the first lock hole;

[0055] When the wrench is turned, the spring latch is pulled out from the first locking hole, and the wrench pulls the spring latch out of the positioning slot through the first drive cable.

[0056] When the seat is needed, the armrests, backrest, and seat are folded into the storage slot and locked by the spring latch inserted into the first lock hole. When the seat is needed, the lever is swung, which will cause the spring latch to retract from the first lock hole, releasing the lock in the storage slot. At the same time, the spring latch is pulled by the first drive cable, unlocking the relative positions of the armrests and backrest. This allows the lever to unlock two parts at the same time.

[0057] Preferably, the end face of the locking boss is provided with an armrest inner cavity groove, the outer surface of the seat plate turntable is provided with a seat plate cavity groove, and the armrest inner cavity groove and the seat plate cavity groove are engaged to form an inner locking cavity;

[0058] The inner locking cavity is provided with a second guide and an inner locking groove in axial direction from the inner cavity groove of the armrest to the inner cavity groove of the seat plate;

[0059] The second locking member can slide axially but cannot rotate circumferentially relative to the inner locking cavity via the second guide member. The second guide member includes a first inner locking guide section located in the inner cavity groove of the armrest and a second inner locking guide section located in the seat cavity groove. A second spring is provided between the second locking member and the seat cavity groove. The second spring pushes the second locking member to slide towards the outer end of the inner locking cavity.

[0060] The inner locking groove includes a first inner locking section and a second inner locking section. The first inner locking section is located in the second boss section and connects the inside and outside of the second boss section. The second inner locking section is located in the seat cavity groove. The inner end of the back plate rotating circle is provided with a second arc-shaped unlocking groove. One end of the second arc-shaped unlocking groove is provided with a groove exit slope corresponding to the rotation direction.

[0061] The second locking member has a second single-sloping surface driving tooth on its side wall. The second single-sloping surface driving tooth passes through the first inner locking section to the second arc-shaped unlocking groove. The slope of the second single-sloping surface driving tooth is corresponding to the slope of the groove.

[0062] When the armrest turntable, back panel turntable and seat turntable are in the folded state, the first arc segment unlocking groove and the second inner locking segment are misaligned, so that the second single inclined surface drive tooth moves to the second inner locking segment, and the second locking member moves to the inner end of the rotating shaft. At this time, the second locking member is only adapted to the second inner locking guide segment.

[0063] The back panel rotates relative to the armrest turntable in the unfolding direction until the second arc segment unlocking groove and the second inner locking segment coincide. The second spring pushes the second locking member to move to the outer end of the rotating shaft, so that the second locking member simultaneously adapts to the first inner locking guide segment and the second inner locking guide segment. The armrest turntable is rotated so that the armrest turntable is in the unfolded state relative to the rotating base and locked.

[0064] The relative positions of the armrest turntable and the seat turntable are locked by a second locking element. If the second locking element can only slide axially and not rotate circumferentially relative to both the armrest inner cavity groove and the seat cavity groove, then when the second locking element is only located in the armrest inner cavity groove, the armrest turntable and the seat turntable can rotate relative to each other. However, if the second locking element is located in both the armrest inner cavity groove and the seat cavity groove simultaneously, the relative angle between the armrest turntable and the seat turntable will be locked. The axial movement of the second locking element is achieved by the rotation of the back plate. Specifically, when the second arc-shaped unlocking groove coincides with the first inner locking section, the second single-slope driving tooth is located in the second arc-shaped unlocking groove, and the second locking element is only located in the armrest inner cavity groove. Rotating the back plate will unfold all three elements, and the protruding slope of the second arc-shaped unlocking groove will push the second single-slope driving tooth towards the seat cavity groove. The second arc-shaped unlocking groove is offset from the first inner locking section, ultimately achieving the goal of the second locking element being located in both the armrest inner cavity groove and the seat cavity groove simultaneously.

[0065] Preferably, the handle assembly includes a handle body;

[0066] The handle body has a handle turntable at its end, the handle turntable has a handle cavity groove on its surface, the side wall of the handle cavity groove has a limit pin hole, the limit pin hole has a spring limit pin pointing into the handle cavity groove, the tail end of the spring limit pin is connected to one end of the drive cable, and the other end of the drive cable extends to the handle body.

[0067] The bag body has base turntables at both ends corresponding to the handle body. The turntables have limiting bosses on their surfaces corresponding to the handle cavity. The base turntables rotatably engage with the handle cavity, and the limiting bosses rotatably engage with the handle cavity. The sidewalls of the limiting bosses have several limiting slots that mate with the front ends of the spring limiting pins. Preferably, the handle body has a pressing part, which is longitudinally slidably fitted with a driving slider. The driving slider has a pressing slope, and the pressing part is laterally slidably fitted with an unlocking switch. One side of the unlocking switch has a pressing section, and the other side has an unlocking slope that mates with the pressing slope. An unlocking spring is located between the unlocking switch and the pressing part. The unlocking spring pushes the unlocking switch away from the driving slider, causing the driving slider to slide towards one end of the driving cord. Pressing the unlocking switch pushes the pressing slope, causing the driving slider to slide away from the driving cord. Preferably, the bag body is provided with a storage compartment, the opening of the storage compartment is provided with a lid, one end of the lid is hinged to the storage compartment, and the other end of the lid is provided with a rotary switch;

[0068] Locking rods are provided on both sides of the rotary switch, and the locking rods slide relative to the lid. A pin is provided at the inner end of the locking rod, and the rotary switch is provided with a V-shaped contact surface for the pin to be pulled. An outward push spring is provided between the locking rod and the lid, and the outward push spring pushes the locking rod outward from the lid. The inner wall of the storage compartment is provided with a second locking hole for the outer end of the locking rod to be inserted. When the rotary switch is rotated, the V-shaped contact surface drives the pin, causing the locking rod to retract inward.

[0069] Under normal conditions, the outer end of the locking bar engages with the second locking hole to lock the lid of the storage compartment. When it needs to be opened, turn the knob switch. When the V-shaped contact surface rotates, it will drive the pin hook inward, which will cause the locking bar to slide inward.

[0070] The beneficial effects of this utility model are:

[0071] This solution cleverly combines a bag and a seat, allowing you to carry items while providing a seat through folding. It makes it easy to carry children while moving luggage. The overall structure uses a folding storage method, and the seat can be stored away when not in use, avoiding taking up external space and eliminating the need to carry a suitcase and stroller at the same time, making travel more convenient. Attached Figure Description

[0072] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only thirty-three of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0073] Figure 1 This is an external schematic diagram of the seat assembly in the open state according to an embodiment of the present utility model;

[0074] Figure 2 This is a schematic diagram of the wheel and leg assembly of this utility model inside the bag body;

[0075] Figure 3 This is a cross-sectional view of the seat assembly in the open state according to an embodiment of the present utility model;

[0076] Figure 4 This is a schematic diagram of the wheel leg assembly in the extended state according to an embodiment of the present utility model;

[0077] Figure 5 This is a schematic diagram showing the state of the retractable lever according to an embodiment of the present utility model;

[0078] Figure 6 This is a schematic diagram of the slider and connecting rod according to an embodiment of the present utility model;

[0079] Figure 7 One of the exploded views of the sliding rod, the first locking block, and the second locking block according to an embodiment of this utility model;

[0080] Figure 8 This is a second exploded view of the sliding rod (without a shell), the first locking block, and the second locking block according to an embodiment of the present utility model.

[0081] Figure 9 This is a schematic diagram of an embodiment of the present invention, showing the slider in the lower section and the second pin extending into the outer hole;

[0082] Figure 10 This is a schematic diagram showing the slider in the lower section and the second pin retracting from the outer hole in an embodiment of the present invention.

[0083] Figure 11 This is a schematic diagram showing the slider in the upper section and the first pin about to extend into the outer hole according to an embodiment of the present invention.

[0084] Figure 12 This is a schematic diagram of an embodiment of the present invention, showing the slider in the upper section and the first pin extending into the outer hole;

[0085] Figure 13 This is a schematic diagram of the seat assembly according to an embodiment of the present utility model;

[0086] Figure 14 This is an exploded view from the left side of an embodiment of the present invention;

[0087] Figure 15 This is an exploded view from the right side of an embodiment of the present invention;

[0088] Figure 16 This is a schematic diagram of the rotating base according to an embodiment of the present utility model;

[0089] Figure 17 This is a schematic diagram of the first locking member according to an embodiment of the present utility model;

[0090] Figure 18 This is a schematic diagram of the first driving component according to an embodiment of the present utility model;

[0091] Figure 19 This is a perspective view of the left side of the handle turntable according to an embodiment of the present utility model;

[0092] Figure 20 This is a perspective view of the right side of the handle turntable according to an embodiment of the present utility model;

[0093] Figure 21 A side perspective view of the rotating backrest of this utility model embodiment;

[0094] Figure 22 This is a perspective view of the right side of the rotating backrest according to an embodiment of the present utility model;

[0095] Figure 23 This is a schematic diagram of the second locking member according to an embodiment of the present utility model;

[0096] Figure 24 This is a schematic diagram of the seat turntable according to an embodiment of the present utility model;

[0097] Figure 25 This is a schematic diagram of the drive plate before it presses against the inclined top rod in an embodiment of the present invention;

[0098] Figure 26 This is a schematic diagram of the drive plate pressing the inclined top rod according to an embodiment of the present utility model;

[0099] Figure 27 This is a cross-sectional view of the back panel fastening and storage groove according to an embodiment of the present utility model;

[0100] Figure 28 This is a cross-sectional view of a bag containing the lever of an embodiment of the present utility model;

[0101] Figure 29 This is a schematic diagram of the handle assembly according to an embodiment of the present utility model;

[0102] Figure 30This is one of the partial exploded views of the handle assembly according to an embodiment of the present utility model;

[0103] Figure 31 This is a second partially exploded view of the handle assembly according to an embodiment of the present utility model;

[0104] Figure 32 This is a schematic diagram showing the engagement of the knob switch and the lid according to an embodiment of the present utility model;

[0105] Figure 33 This is a schematic diagram illustrating the unlocking of the knob switch and the lid according to an embodiment of the present invention.

[0106] The components include: 1. Bag body; 2. Storage slot; 3. Drive plate; 4. Wheel lock ramp; 5. Wrench; 6. Hook; 7. Hook hole; 8. First lock hole; 9. First drive cord; 10. Storage compartment; 11. Lid; 12. Rotary switch; 13. V-shaped contact surface; 14. Locking rod; 15. Push spring; 17. Guide rail; 18. Sliding sleeve; 19. Outer hole; 20. Angled guide opening; 21. Wheel rod; 22. Connecting rod; 23. Roller; 24. Guide wheel; 25. Sliding rod; 26. First locking ramp; 27. Second locking ramp; 28. First locking block; 29. ​​First control ramp; 30. First... 31. Pin rod; 32. Second locking block; 33. Second control ramp; 34. Second pin rod; 35. Reset elastic element; 36. Control window; 37. Rammed top rod; 38. Vertical push ramp; 39. Backrest; 40. Armrest; 41. Seat plate; 42. Rotating base; 43. Rotating cavity groove; 44. First guide element; 45. Armrest turntable; 46. Armrest outer cavity groove; 47. Outer locking groove; 48. First outer locking section; 49. Second outer locking section; 50. Armrest inner cavity groove; 51. Guide post; 52. Protrusion; 53. Locking boss; 54. First boss section; 55. Second boss section; 56. Positioning slot 56. First inner locking section; 57. Second inner locking section; 58. First spring; 59. First driving component; 60. First single-sloping surface driving tooth; 61. First locking component; 62. First guide limiting tooth; 63. Spring pin; 64. Backrest rotating plate; 65. First arc-shaped unlocking groove; 66. Second arc-shaped unlocking groove; 67. Outlet slope; 68. Seat plate turntable; 69. Seat plate cavity groove; 70. Second guide component; 71. Second locking component; 72. Second spring; 73. Second single-sloping surface driving tooth; 74. Handle body; 75. Handle turntable; 76. Handle cavity groove; 77. Base turntable; 78. Limiting tooth 79. Boss; 80. Spring limiting pin; 81. Limiting slot; 82. Drive rope; 83. Inner shaft; 84. Limiting strip hole; 85. Limiting pin hole; 86. Extrusion slope; 87. Unlocking switch; 88. Extrusion section; 89. Unlocking slope; 90. Unlocking spring; 91. Sliding positioning groove; 92. Extrusion part; 93. Drive slider; 94. First locking hole; 95. Second locking hole; 96. Second locking elastic element; 97. First control groove; 98. Second control groove; 99. Third control groove; 100. Square tube; 101. Positioning rod; 102. Spring locking tongue. Detailed Implementation

[0107] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0108] Example

[0109] like Figure 1 As shown, a luggage-type trolley includes a luggage body, which is provided with wheel and leg assemblies, a seat assembly, and a handle assembly;

[0110] The wheel and leg assembly is arranged downwards on the main body of the bag, and the wheel and leg assembly is used for moving the main body of the bag; the seat assembly is arranged on the upper front side of the main body of the bag, and the seat assembly is used to provide a folding seat; the handle assembly is arranged on the rear side of the main body of the bag, and is used to push the main body of the bag by hand.

[0111] This solution incorporates a seat assembly within the luggage body, which can be folded to provide a seat for children to sit on. Adults can use the handle assembly to push the luggage body, which is also equipped with wheels for easy movement. It functions as both a stroller and a luggage bag, making it more convenient to carry luggage and children when traveling.

[0112] A set of wheel leg assemblies is provided on each side of the bag body;

[0113] Combination Figure 2 and Figure 3 As shown, the wheel leg assembly includes a guide rail 17, a sliding sleeve 18, a wheel rod 21, and a roller 23;

[0114] The bag body is vertically provided with the guide rail 17, the sliding sleeve 18 is slidably engaged with the guide rail 17, and a locking mechanism is provided between the guide rail 17 and the sliding sleeve 18, the locking mechanism fixing the sliding sleeve 18 to the upper or lower section of the guide rail 17.

[0115] The upper ends of the two wheel rods 21 are respectively located on both sides of the guide rail 17, and the lower ends of the two wheel rods 21 are inclined in opposite directions. The wheel rods 21 are slidably engaged with the bag body. The upper end of the wheel rod 21 is connected to the sliding sleeve 18 through the connecting rod 22, and the lower end of the wheel rod 21 is provided with a roller 23.

[0116] Combination Figure 4 , Figure 5 and Figure 6 As shown, since the upper end of the wheel rod 21 is connected to the sliding sleeve 18 through the connecting rod 22, the wheel rod 21 will retract when the sliding sleeve 18 is located at the upper part of the guide rail 17, and the wheel rod 21 will extend when the sliding sleeve 18 is located at the lower part of the guide rail 17. Since the two wheel rods 21 are inclined to each other, when the wheel rod 21 extends, the bottom of the wheel rod 21 will be further away, so as to lower the overall center of gravity and better play the role of moving and bearing. When retracted, the distance is closer, which can occupy less space.

[0117] The bag body is equipped with several guide wheels 24 that fit the sides of the wheel rods 21. The guide wheels 24 reduce the friction between the wheel rods 21 and the bag body. The lower ends of two wheel rods 21 are distributed crosswise towards the other side of the guide rail 17. This results in a smaller footprint when retracted and a sufficiently large distance between them when extended.

[0118] Combination Figure 7 and Figure 8 As shown, the locking mechanism includes a sliding rod 25, a first locking block 28, and a second locking block 31;

[0119] The sliding rod 25 is axially slidably fitted inside the guide rail 17. A reset elastic element 34 is provided between the sliding rod 25 and the guide rail 17. The reset elastic element 34 slides the sliding rod 25 toward the first end of the guide rail 17.

[0120] The side wall of the guide rail 17 is provided with a control window 35, and the side wall of the sliding rod 25 is provided with a vertical push slope 37; the control window 35 is slidably engaged with a slope top rod 36, and the front end of the slope top rod 36 is provided corresponding to the vertical push slope 37.

[0121] The first locking block 28 and the second locking block 31 are respectively provided on the upper and lower sections of the guide rail 17.

[0122] The first locking block 28 is provided with a first control slope 29 and a first pin portion 30; the side wall of the sliding rod 25 is provided with a first locking slope 26 adapted to the first control slope 29; the upper side wall of the guide rail 17 is provided with a first locking hole 93 adapted to the first pin portion 30; and the first locking block 28 is provided with a first locking elastic member 94 that pushes toward the first locking hole 93.

[0123] The second locking block 31 is provided with a second control ramp 32 and a second pin portion 33; the side wall of the sliding rod 25 is provided with a second locking ramp 27 adapted to the second control ramp 32; the lower side wall of the guide rail 17 is provided with a second locking hole 95 adapted to the second pin portion 33; and the second locking block 31 is provided with a second locking elastic member 96 that pushes toward the second locking hole 95.

[0124] In this embodiment, the guide rail includes an outer square tube 100 and an inner positioning rod 101. The positioning rod 101 is fixed inside the square tube 100 and is used to set the irregular structure inside the square tube 100. In this embodiment, the first locking hole 93 includes two parts: the square tube 100 and the positioning rod 101. The markings in the figure only indicate the part of the positioning rod 101. The second locking hole 95 is similar.

[0125] Only one set of the first locking ramp 26 and the first control ramp 29, and the second locking ramp 27 and the second control ramp 32 are aligned at the same time;

[0126] Combination Figures 9-12 As shown, when the inclined push rod 36 slides away from the end of the vertical push inclined surface 37;

[0127] Under the push of the reset elastic member 34, the sliding rod 25 slides downward; the first locking slope 26 pushes the first control slope 29, the first locking slope 26 and the first control slope 29 are misaligned, the first locking block 28 slides away from the first locking hole 93, and the first pin portion 30 retracts into the first locking hole 93; the second locking slope 27 and the second control slope 32 are aligned, the second locking elastic member 96 pushes the second locking block 31 to slide into the second locking hole 95, and the second pin portion 33 extends from the second locking hole 95 to the outside;

[0128] When the inclined push rod 36 slides toward one end close to the vertical push inclined surface 37;

[0129] Under the push of the inclined rod 36 against the vertical push inclined surface 37, the sliding rod 25 slides upward; the second locking inclined surface 27 pushes the second control inclined surface 32 to contact and align, the second locking inclined surface 27 pushes the second control inclined surface 32 to contact and misalign, the second locking block 31 slides away from the second locking hole 95, and the second pin portion 33 retracts into the second locking hole 95; the first locking inclined surface 26 contacts and aligns with the first control inclined surface 29, the first locking elastic element 94 pushes the first locking block 28 to slide towards the first locking hole 93, and the first pin portion 30 extends from the first locking hole 93 to the outside;

[0130] The sliding sleeve 18 is provided with an outer hole 19 that is adapted to the first pin portion 30 or the second pin portion 33.

[0131] In the initial state, the sliding sleeve 18 is located in the first upper section, and the first pin 30 extending to the outside is engaged in the outer hole 19. The sliding sleeve 18 is locked in the upper section of the slide rail. At this time, the wheel rod 21 retracts into the body of the bag and is locked.

[0132] When the wheel rod 21 needs to be extended, the inclined top rod 36 slides away from the end of the vertical push inclined surface 37; the first pin part 30 retracts into the first locking hole 93, the sliding sleeve 18 is unlocked in the upper section, and under the action of the wheel rod's own weight, the sliding sleeve 18 is driven to slide down to the lower section, the second pin part 33 extends from the second locking hole 95 to the outside, and the second pin part 33 is inserted into the outer hole 19, thereby locking the sliding sleeve 18 in the lower section of the slide rail.

[0133] When the wheel rod 21 needs to be retracted, the inclined top rod 36 slides towards the end close to the vertical push inclined surface 37 under the drive of external force. The second pin part 33 retracts into the second locking hole 95, and the sliding sleeve 18 is unlocked in the lower section. Under the action of the weight of the bag body itself, the sliding sleeve 18 slides upward to the upper section. The first pin part 30 extends from the second locking hole 95 to the outside and is inserted into the outer hole 19, thereby locking the sliding sleeve 18 in the upper section of the slide rail.

[0134] The above methods enable the upper and lower sections of the sliding sleeve 18 to be locked and unlocked, thereby allowing the wheel to retract and extend.

[0135] The sliding rod 25 has a first control groove 97 on its side wall, and a first locking slope is provided on one side of the bottom of the first control groove 97. This improves space utilization. The sliding rod 25 also has a second control groove 98 on its side wall, and a second locking slope is provided on one side of the bottom of the second control groove 98. This also improves space utilization. A third control groove 99 is provided corresponding to the control window 35, and a vertical push slope 37 is provided on one side of the bottom of the third control groove 99. This also improves space utilization.

[0136] The sliding sleeve 18 has oblique guide openings 20 at both ends corresponding to the first pin portion 30 and the second pin portion 33, respectively. This allows the sliding sleeve 18 to slide close to the first pin portion 30 or the second pin portion 33, and then, by pressing its outer end inward, it adapts to the outer hole 19. The sliding sleeve 18 has a through hole through which the guide rail 17 slides. This improves the stability of the fit between the sliding sleeve 18 and the guide rail 17.

[0137] The front exterior of the bag body is provided with a storage slot 2, and rotating bases 41 are respectively provided on both sides of the upper end of the storage slot 2, combined with... Figure 13 , Figure 14 and Figure 15 As shown, the seat assembly includes armrests 39, backrests 38, and seats 40. Armrests 39 have armrest turntables 44 at both ends corresponding to the two rotating bases 41. Backrests 38 have backrest rings at both sides corresponding to the two rotating bases 41. Seat 40 has seat 40 turntables at both sides corresponding to the two rotating bases 41. The rotating bases 41, armrest turntables 44, backrest rings, and seat 40 turntables are rotatably connected.

[0138] Combination Figure 16 As shown, the inner surface of the rotating base 41 is provided with a rotating cavity groove 42; the outer surface of the armrest turntable 44 is provided with an armrest outer cavity groove 45.

[0139] The rotating cavity groove 42 and the armrest outer cavity groove 45 are fastened together to form an outer locking cavity;

[0140] Combination Figure 17 As shown, the outer locking cavity contains a first locking element 61 and a first driving element 59 distributed from the outside to the inside;

[0141] Combination Figure 18 As shown, the first driving member 59 is located in the outer cavity groove 45 of the armrest, and the first driving member 59 can slide axially relative to the outer cavity groove 45 of the armrest but cannot rotate circumferentially.

[0142] Combination Figure 20 As shown, a first guide member 43 is axially provided on the side wall of the outer locking cavity from the rotating cavity groove 42 to the handrail outer cavity groove 45. The first locking member 61 can slide axially relative to the outer locking cavity through the first guide member 43 but cannot rotate circumferentially. The first guide member 43 includes a first outer locking guide section located in the rotating cavity groove 42 and a second outer locking guide section located in the handrail outer cavity groove 45.

[0143] A first spring 58 is provided between the first locking member 61 and the rotating cavity 42. The first spring 58 pushes the first locking member 61 and the first driving member 59 to slide towards the inner end of the outer locking cavity.

[0144] During the rotation of the back plate, the first driving member 59 is pushed to slide towards the outer end of the rotating shaft, so that the first locking member 61 is only adapted to the first outer locking guide section or is adapted to both the first outer locking guide section and the second outer locking guide section.

[0145] When the chair is not in use, the armrests 39, backrest 38 and seat 40 are folded into the storage slot 2, with the backrest 38 acting as an outer cover to cover the storage slot 2. When the chair is in use, the armrests 39, backrest 38 and seat 40 are rotated out.

[0146] The rotating base 41, armrest turntable 44, back panel turntable, and seat plate turntable 40 rotate and cooperate, thus allowing for adjustment of their relative angles and facilitating folding and storage. The outer locking cavity is equipped with a first guide 43, enabling the first locking member 61 to slide axially through the guide 43. If the first locking member 61 is located solely in the rotating cavity groove 42 or the armrest outer cavity groove 45, relative rotation between the armrest turntable 44 and the rotating base 41 is possible. If the first locking member 61 is located in both the armrest outer cavity groove 45 and the rotating cavity groove 42, due to the presence of the first guide 43, the first locking member 61 can only slide axially within both grooves and cannot rotate circumferentially. Therefore, relative rotation between the armrest turntable 44 and the rotating base 41 is impossible in this case.

[0147] The specific state of the first locking member 61 is determined by the first driving member 59 and the first spring 58. When the first driving member 59 provides a pushing force to push the first locking member 61, the first locking member 61 will be located in both the outer cavity groove 45 and the rotating cavity groove 42 of the armrest at the same time. When the first driving member 59 does not provide a pushing force, the first locking member 61 will be located only in the rotating cavity groove 42 under the push of the first spring 58.

[0148] The first guide member 43 is a first guide limiting groove disposed on the side wall of the outer locking cavity, and the first locking member 61 is provided with a first guide limiting tooth 62 that slides and adapts to the first guide limiting groove. This ensures that the first guide member 43, the outer cavity groove 45 of the handrail, and the rotating cavity groove 42 can only slide axially and cannot rotate circumferentially.

[0149] A guide post 50 is axially arranged on the outer locking cavity. The guide post 50 can further improve the stability of the first driving member 59 and the first locking member 61 during the sliding process in the outer locking cavity.

[0150] Combination Figure 25 and Figure 26 As shown, a drive plate 3 is provided on the outside of the handrail turntable 44. The drive plate 3 is provided with the outer port of the control window 35. The outer end of the inclined top rod 36 extends to the outside of the control window 35. The outer end of the inclined top rod 36 is provided with a wheel lock inclined surface 4 corresponding to the drive plate 3.

[0151] The side wall of the outer cavity groove 45 of the handrail is provided with an outer locking groove 46, the outer locking groove 46 includes a first outer locking section 47 and a second outer locking section 48, the first outer locking section 47 is located on the outer end side of the rotating shaft relative to the second outer locking section 48;

[0152] The inner end face of the first driving member 59 is provided with a first single inclined surface driving tooth 60 corresponding to the outer locking groove 46, and the first single inclined surface driving tooth 60 slides axially with the outer locking groove 46.

[0153] The inner surface of the handrail turntable 44 is provided with a locking protrusion 52. The outer wall of the locking protrusion 52 includes a first protrusion section 53 and a second protrusion section 54 from the outer end to the inner end. The first protrusion section 53 is located outside the second outer locking section 48, and the bottom of the groove of the second outer locking section 48 passes through the outer wall of the first protrusion section 53.

[0154] The outer wall of the locking protrusion 52 is rotatably fitted with the back plate rotating ring, and the inner edge of the outer end of the back plate rotating ring is provided with a first arc-shaped unlocking groove 65 corresponding to the first outer locking segment 47.

[0155] When the rotating base 41, armrest turntable 44, and back panel are in the folded state, the first arc-shaped unlocking groove 65 and the second outer locking section 48 are misaligned. The end of the first arc-shaped unlocking groove 65 pushes the first single-sloping surface drive tooth to move to the first outer locking section 47. The first drive member 59 pushes the first locking member 61 to move to the outer end of the rotating shaft, so that the first locking member 61 only fits the first outer locking guide section. The drive plate 3, as the armrest turntable 44 rotates, squeezes the wheel lock slope 4 and pushes the slope top rod 36 to move into the control window 35.

[0156] The wheel lock ramp is located on the outside of the bag body, and the bag body is set on one side corresponding to the wheel lock ramp. During the rotation of the drive plate, the edge of the drive plate contacts the wheel lock ramp and squeezes and pushes the ramp top rod to achieve the effect of pushing the ramp top rod more easily.

[0157] The back panel rotates relative to the armrest turntable 44 in the unfolding direction until the first arc-shaped unlocking groove 65 and the second outer locking section 48 coincide. The first spring 58 pushes the first locking member 61 to move towards the inner end of the rotating shaft, so that the first locking member 61 is simultaneously adapted to the first outer locking guide section and the second outer locking guide section. The armrest turntable 44 is rotated so that the armrest turntable 44 is in the unfolded state and locked relative to the rotating base 41. The drive plate 3 moves away from the inclined top rod 36 as the armrest turntable 44 rotates, and the inclined top rod 36 moves outward towards the control window 35.

[0158] In this embodiment, the first single inclined surface is designed to be located at the position where the end of the first arc segment contact groove first contacts the first single inclined surface drive tooth 60 during the back panel rotation relative to the armrest 39 folding process.

[0159] The outer end face of the first locking member 61 is provided with a hole or groove that is adapted to the first spring 58 so that the first spring 58 has room to extend and retract.

[0160] The side wall of the locking protrusion 52 is provided with at least two positioning slots 55;

[0161] The back plate is slidably fitted with a spring-loaded pin 63 that abuts against the side wall of the locking protrusion 52. The front end of the spring-loaded pin 63 extends to the positioning groove 55. One end of the positioning groove 55 is provided with an out-hole slope, and the spring-loaded pin 63 is adapted to the out-hole slope.

[0162] When the armrest 39 is folded, the drive plate 3 can push the inclined top rod 36 to fix the wheel leg assembly in the body of the bag. When the armrest 39 is opened, the drive plate 3 moves away the inclined top rod 36, the upper section of the guide rail 17 is unlocked, the wheel leg assembly can be opened and the sliding sleeve 18 is locked in the lower section of the guide rail 17.

[0163] The back plate rotates in a circle, causing the end of the first arc-shaped unlocking groove 65 to push the first single-sloping drive tooth 60, thereby controlling the first locking member 61, which is located in the armrest outer cavity groove 45 or simultaneously in the armrest outer cavity groove 45 and the rotating cavity groove 42.

[0164] By engaging the spring pin 63 with the positioning slot 55, the position of the back panel relative to the armrest 39 can be easily locked to prevent it from rotating.

[0165] In this embodiment, the inclined surface of the positioning slot 55 is located on the side of the back plate rotating relative to the armrest turntable 44 in the folding motion, and the inclined surface of the spring pin 63 has a hole that matches the inclined surface of the positioning slot 55 so that the second spring 72 has room to extend and retract.

[0166] Combination Figure 27-28 As shown, the outer end edge of the backrest 38 is provided with a spring latch 102 that abuts against the inner wall of the storage groove 2, and the inner wall of the storage groove 2 is provided with a first lock hole 8 for the spring latch 102 to be inserted.

[0167] The backrest 38 has a wrench 5 hinged to its back, the wrench 5 is provided with a hook 6, and the spring lock tongue 102 is provided with a hook hole 7 for the hook 6 to be hooked.

[0168] One end of the first drive cord 9 is connected to the wrench 5, and the other end of the first drive cord 9 is connected to the spring lock tongue 102.

[0169] In the initial state, the backrest 38 is fastened to the storage slot 2 shown, the spring lock tongue 102 is inserted forward into the positioning slot 55, the spring lock tongue 102 pulls the wrench 5 through the first drive cord 9, the wrench 5 is against the back of the backrest 38, and the spring lock tongue 102 extends out and is inserted into the first lock hole 8.

[0170] When the wrench 5 is turned, the spring locking tongue 102 is pulled out from the first locking hole 8, and the wrench 5 pulls the spring locking tongue 102 out of the positioning slot 55 through the first drive cord 9.

[0171] When the seat is needed, the armrest 39, backrest 38 and seat 40 are folded into the storage slot 2 and locked by the spring latch 102 inserted into the first lock hole 8. When the seat is needed, the lever 5 is swung, which will cause the spring latch 102 to retract from the first lock hole 8 and release the lock in the storage slot 2. At the same time, the spring latch 102 is pulled by the first drive cable 9 to unlock the relative position of the armrest 39 and the backrest 38. The above achieves the simultaneous unlocking of two parts by the lever 5.

[0172] Combination Figure 19 , Figure 21 and Figure 24As shown, the end face of the locking boss 52 is provided with an armrest inner cavity groove 49, and the outer surface of the turntable of the seat plate 40 is provided with a seat plate cavity groove 69. The armrest inner cavity groove 49 and the seat plate cavity groove 69 are engaged to form an inner locking cavity.

[0173] The inner locking cavity is provided with a second guide 70 and an inner locking groove in axial direction from the inner cavity groove 49 of the armrest to the inner cavity groove 69 of the seat plate;

[0174] The second locking member 71 can slide axially but cannot rotate circumferentially relative to the inner locking cavity via the second guide member 70. The second guide member 30 includes a first inner locking guide section located in the inner cavity groove of the armrest and a second inner locking guide section located in the seat cavity groove. A second spring 72 is provided between the second locking member 71 and the seat cavity groove 69. The second spring 72 pushes the second locking member 71 to slide towards the outer end of the inner locking cavity.

[0175] Combination Figure 19 As shown, the inner locking groove includes a first inner locking section 56 and a second inner locking section 57 from the outside to the inside. The first inner locking section 56 is located on the second boss section 54 and connects the inside and outside of the second boss section 54. The second inner locking section 57 is located in the seat plate cavity groove 69, combined with... Figure 21 and Figure 22 As shown, a second arc-shaped unlocking groove 66 is provided along the inner end of the back plate rotating circle, and a groove-out inclined surface 67 is provided at one end of the second arc-shaped unlocking groove 66 corresponding to the rotation direction.

[0176] Combination Figure 23 As shown, the side wall of the second locking member 71 is provided with a second single inclined surface driving tooth 73. The second single inclined surface driving tooth 73 passes through the first inner locking section 56 to the second arc segment unlocking groove 66. The inclined surface of the second single inclined surface driving tooth 73 is correspondingly provided with the grooved inclined surface 67.

[0177] When the armrest turntable 44, back panel turntable and seat 40 turntable are in the folded state, the first arc segment unlocking groove 65 and the second inner locking segment 57 are misaligned, so that the second single inclined surface drive tooth 73 moves to the second inner locking segment 57, and the second locking member 71 moves to the inner end of the rotating shaft. At this time, the second locking member 71 is only adapted to the second inner locking guide segment.

[0178] The back panel rotates relative to the armrest turntable 44 in the unfolding direction until the second arc segment unlocking groove 66 and the second inner locking segment 57 coincide. The second spring 72 pushes the second locking member 71 to move to the outer end of the rotating shaft, so that the second locking member 71 is simultaneously adapted to the first inner locking guide segment and the second inner locking guide segment. The armrest turntable 44 is rotated so that the armrest turntable 44 is in the unfolded state and locked relative to the rotating base 41.

[0179] The relative positions of the armrest turntable 44 and the seat plate 40 turntable are locked by the second locking member 71. If the second locking member 71 can only slide axially and cannot rotate circumferentially relative to the inner cavity groove 49 of the armrest and the cavity groove 69 of the seat, the armrest turntable 44 and the seat plate 40 turntable can rotate relative to each other when the second locking member 71 is only located in the inner cavity groove 49 of the armrest. However, if the second locking member 71 is located in both the inner cavity groove 49 of the armrest and the cavity groove 69 of the seat, the relative angle between the armrest turntable 44 and the seat plate 40 turntable will be locked. The axial movement of the second locking member 71 is achieved by the rotation of the back plate. Specifically, when the second arc-shaped unlocking groove 66 coincides with the first inner locking section 56, the second single-slope driving tooth 73 is located in the second arc-shaped unlocking groove 66, and the second locking member 71 is only located in the inner cavity groove 49 of the armrest. Rotating the back plate will unfold all three. The grooved slope 67 of the second arc-shaped unlocking groove 66 will push the second single-slope driving tooth 73 to move towards the seat cavity groove 69. The second arc-shaped unlocking groove 66 is offset from the first inner locking section 56, and finally the second locking member 71 is located in both the inner cavity groove 49 of the armrest and the seat cavity groove 69.

[0180] In this embodiment, when the second single-slope driving tooth 73 is located in the second arc-segment unlocking groove 66, the back plate rotates and folds relative to the armrest turntable 44. The end of the second single-slope driving tooth 73 that contacts the second arc-segment unlocking groove 66 is provided with an exiting groove slope 67. The slope of the second single-slope driving tooth 73 is adapted to the exiting groove slope 67.

[0181] Combination Figure 29 The figure shown includes the handle body 74;

[0182] Combination Figure 30 and Figure 31 As shown, a handle turntable 75 is provided at the end of the handle body 74. The handle turntable 75 has a handle cavity groove 76 on its surface. A limit pin hole 84 is provided on the side wall of the handle cavity groove 76. A spring limit pin 79 is provided in the limit pin hole 84, pointing into the handle cavity groove 76. The tail end of the spring limit pin 79 is connected to one end of the drive cable 81, and the other end of the drive cable 81 extends to the handle body 74.

[0183] The bag body 1 is provided with base turntables 77 at both ends corresponding to the handle body 74. The base turntables 77 are provided with limiting bosses 78 on the disc surface corresponding to the handle cavity groove 76. The base turntables 77 are rotatably engaged with the handle cavity groove 76, and the limiting bosses 78 are rotatably engaged with the handle cavity groove 76. The side wall of the limiting bosses 78 is provided with a plurality of limiting slots 80 that are adapted to the front end of the spring limiting pins 79.

[0184] In this design, the handle body 74 rotates with the base turntable 77 of the base via the handle disc 75. Therefore, under normal circumstances, the handle body 74 can rotate relative to the base to change its angle. Since the front end of the spring-loaded limiting pin 79 is adapted to the limiting slot 80 located on the side wall of the limiting boss 78, when the front end of the spring-loaded limiting pin 79 is aligned with the limiting slot 80, the front end of the spring-loaded limiting pin 79 will engage in the limiting slot 80, locking the angle of the handle disc 75 relative to the base turntable 77. Changing the angle between the handle body 74 and the base allows the front end of the spring-loaded limiting pin 79 to adapt to different limiting slots 80, thus locking the handle body 74 at different angles relative to the base. To unlock, pull the drive cable 81 backward; releasing the drive cable 81 will re-lock the relative positions of the handle disc 75 and the base turntable 77.

[0185] An inner shaft 82 is provided at the center of the handle cavity groove 76, and the inner shaft 82 is rotatably engaged with the base turntable 77. This allows the handle turntable 75 and the base turntable 77 to rotate more stably relative to each other.

[0186] The side wall of the spring limiting pin 79 is provided with a limiting strip hole 83 along the axial direction. A travel pin passes through the limiting strip hole 83, and the end of the travel pin is fixed to the limiting pin hole 84. This facilitates limiting the forward and backward sliding stroke of the spring limiting pin 79.

[0187] The handle body 74 is provided with a pressing part 91. The pressing part 91 is longitudinally slidably engaged with a driving slider 92. The driving slider 92 is provided with a pressing inclined surface 85. The pressing part 91 is laterally slidably engaged with an unlocking switch 86. One side of the unlocking switch 86 is provided with a pressing section 87. The other side of the unlocking switch 86 is provided with an unlocking inclined surface 88 adapted to the pressing inclined surface 85. An unlocking spring 89 is provided between the unlocking switch 86 and the pressing part 91. The unlocking spring 89 pushes the unlocking switch 86 to move away from the driving slider 92. The driving slider 92 slides towards one end of the driving cord 81. When the unlocking switch 86 is pressed, the unlocking inclined surface 88 pushes the pressing inclined surface 85, causing the driving slider 92 to slide away from the driving cord 81.

[0188] By pushing the squeezing slope 85 through the unlocking slope 88 of the unlocking switch 86, the drive slider 92 can be pushed to slide axially, which in turn pulls the drive rope 81, causing the drive slider 92 to move, making the control simpler and more efficient.

[0189] The handle body 74 has handle cavity grooves 76 at both ends, and the two handle cavity grooves 76 are respectively provided with drive sliders 92. The two drive cords 81 extend from the two drive sliders 92 to the squeezing part 91 respectively, and the ends of the two drive cords 81 are respectively connected to the two drive sliders 92. The unlocking switch 86 is symmetrically provided with two unlocking inclined surfaces 88, and the two unlocking inclined surfaces 88 are respectively provided with the two drive sliders 92.

[0190] The two unlocking ramps 88 and the two drive sliders 92 enable simultaneous control of the two drive cables 81, and the pressure on both sides of the unlocking switch 86 is more balanced.

[0191] The pressing part 91 is disposed in the sliding positioning groove 90. One side of the unlocking switch 86 extends slidably from the opening of the sliding positioning groove 90 into the interior. The driving slider 92 slides within the sliding positioning groove 90 along its length. The unlocking spring 89 is disposed between the two driving sliders 92, with its two ends abutting against the bottom of the sliding positioning groove 90 and the unlocking switch 86, respectively. This facilitates more stable sliding of the two driving sliders 92.

[0192] The handle body 74 has an inner channel, through which the drive cable 81 extends from the drive slider 92 to the sliding positioning groove 90. This avoids interference with external structures.

[0193] Combination Figure 32 and Figure 33 As shown, the bag body is provided with a storage compartment 10, and the opening of the storage compartment 10 is provided with a lid 11. One end of the lid 11 is hinged to the storage compartment 10, and the other end of the lid 11 is provided with a rotary switch 12.

[0194] Locking rods 14 are respectively provided on both sides of the rotary switch 12. The locking rods 14 are slidably engaged with the box cover 11. The inner end of the locking rod 14 is provided with a pin hook. The rotary switch 12 is provided with a V-shaped contact surface 13 for the pin hook to pull. An outward push spring 15 is provided between the locking rod 14 and the box cover 11. The outward push spring 15 pushes the locking rod 14 outward from the box cover 11. The inner wall of the storage compartment 10 is provided with a second locking hole for the outer end of the locking rod 14 to be inserted. When the rotary switch 12 is rotated, the V-shaped contact surface 13 drives the pin hook, causing the locking rod 14 to retract inward.

[0195] Under normal conditions, the outer end of the locking rod 14 engages with the second locking hole to lock the lid 11 of the storage compartment 10. When it needs to be opened, turn the knob switch 12. When the V-shaped contact surface 13 rotates, it will drive the pin hook inward, which will cause the locking rod 14 to slide inward.

[0196] The beneficial effects of this utility model are:

[0197] This solution cleverly combines a bag and a seat, allowing you to carry items while providing a seat through folding. It makes it easy to carry children while moving luggage. The overall structure uses a folding storage method, and the seat can be stored away when not in use, avoiding taking up external space and eliminating the need to carry a suitcase and stroller at the same time, making travel more convenient.

[0198] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0199] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A luggage-type trolley, characterized in that, The bag includes a main body, which is provided with wheel and leg assemblies, a seat assembly, and a handle assembly; The wheel and leg assembly is arranged downwards on the main body of the bag, and the wheel and leg assembly is used for moving the main body of the bag; the seat assembly is arranged on the upper front side of the main body of the bag, and the seat assembly is used to provide a folding seat; the handle assembly is arranged on the rear side of the main body of the bag, and is used to push the main body of the bag by hand.

2. The luggage-type trolley according to claim 1, characterized in that: A set of wheel leg assemblies is provided on each side of the bag body; The wheel leg assembly includes a guide rail (17), a sliding sleeve (18), a wheel rod (21), and a roller (23); The bag body is vertically provided with the guide rail (17), the sliding sleeve (18) is slidably engaged with the guide rail (17), and a locking mechanism is provided between the guide rail (17) and the sliding sleeve (18), the locking mechanism fixing the sliding sleeve (18) to the upper or lower section of the guide rail (17); The upper ends of the two wheel rods (21) are located on both sides of the guide rail (17), and the lower ends of the two wheel rods (21) are inclined in opposite directions. The wheel rods (21) slide relative to the bag body. The upper end of the wheel rod (21) is connected to the sliding sleeve (18) through a connecting rod (22). The lower end of the wheel rod (21) is provided with a roller (23).

3. The luggage-type trolley according to claim 2, characterized in that: The locking mechanism includes a sliding rod (25), a first locking block (28), and a second locking block (31); The sliding rod (25) is axially slidably fitted inside the guide rail (17). A reset elastic element (34) is provided between the sliding rod (25) and the guide rail (17). The reset elastic element (34) slides the sliding rod (25) toward the first end of the guide rail (17). The guide rail (17) has a control window (35) on its side wall, and the sliding rod (25) has a vertical push slope (37) on its side wall; the control window (35) is slidably fitted with a slope top rod (36), and the front end of the slope top rod (36) is set corresponding to the vertical push slope (37); The first locking block (28) and the second locking block (31) are respectively set on the upper and lower sections of the guide rail (17). The first locking block (28) is provided with a first control ramp (29) and a first pin (30); the side wall of the sliding rod (25) is provided with a first locking ramp (26) adapted to the first control ramp (29); the upper side wall of the guide rail (17) is provided with a first locking hole (93) adapted to the first pin (30); and the first locking block (28) is provided with a first locking elastic element (94) that pushes into the first locking hole (93). The second locking block (31) is provided with a second control ramp (32) and a second pin (33); the side wall of the sliding rod (25) is provided with a second locking ramp (27) adapted to the second control ramp (32); the lower side wall of the guide rail (17) is provided with a second locking hole (95) adapted to the second pin (33); and the second locking block (31) is provided with a second locking elastic element (96) that pushes into the second locking hole (95). The first locking ramp (26) and the first control ramp (29), and the second locking ramp (27) and the second control ramp (32) are aligned in only one pair at a time; When the inclined push rod (36) slides away from the end of the vertical push inclined surface (37); Under the push of the reset elastic member (34), the sliding rod (25) slides downward; the first locking slope (26) pushes the first control slope (29), the first locking slope (26) and the first control slope (29) are misaligned, the first locking block (28) slides away from the first locking hole (93), and the first pin part (30) retracts into the first locking hole (93); the second locking slope (27) and the second control slope (32) are aligned, the second locking elastic member (96) pushes the second locking block (31) to slide into the second locking hole (95), and the second pin part (33) extends from the second locking hole (95) to the outside; When the inclined push rod (36) slides toward the end closer to the vertical push inclined surface (37); Under the push of the inclined top rod (36) against the vertical push inclined surface (37), the sliding rod (25) slides upward; the second locking inclined surface (27) pushes the second control inclined surface (32) to contact and align, the second locking inclined surface (27) pushes the second control inclined surface (32) to contact and misalign, the second locking block (31) slides away from the second locking hole (95), and the second pin part (33) retracts into the second locking hole (95); the first locking inclined surface (26) contacts and aligns with the first control inclined surface (29), the first locking elastic element (94) pushes the first locking block (28) to slide towards the first locking hole (93), and the first pin part (30) extends from the first locking hole (93) to the outside; The sliding sleeve (18) is provided with an outer hole (19) that is adapted to the first pin portion (30) or the second pin portion (33).

4. The luggage-type trolley according to claim 3, characterized in that: The front exterior of the bag body is provided with a storage slot (2), and the upper sides of the storage slot (2) are respectively provided with rotating bases (41). The seat assembly includes armrests (39), backrests (38) and seat (40). The two ends of the armrests (39) are respectively provided with armrest turntables (44) corresponding to the two rotating bases (41). The two sides of the backrests (38) are respectively provided with back panel turntables corresponding to the two rotating bases (41). The two sides of the seat (40) are respectively provided with seat panel turntables corresponding to the two rotating bases (41). The rotating bases (41), armrest turntables (44), back panel turntables and seat panel turntables (40) are respectively rotated and engaged. The inner surface of the rotating base (41) is provided with a rotating cavity groove (42); the outer surface of the armrest turntable (44) is provided with an armrest outer cavity groove (45); The rotating cavity groove (42) and the armrest outer cavity groove (45) are fastened together to form an outer locking cavity; The outer locking cavity contains a first locking element (61) and a first driving element (59) distributed from the outside to the inside; The first driving member (59) is located in the outer cavity groove (45) of the armrest. The first driving member (59) can slide axially relative to the outer cavity groove (45) but cannot rotate circumferentially. The side wall of the outer locking cavity is provided with a first guide member (43) axially from the rotating cavity groove (42) to the handrail outer cavity groove (45). The first locking member (61) can slide axially relative to the outer locking cavity through the first guide member (43) but cannot rotate circumferentially. A first spring (58) is provided between the first locking member (61) and the rotating cavity (42). The first spring (58) pushes the first locking member (61) and the first driving member (59) to slide towards the inner end of the outer locking cavity. The first guide member includes a first outer locking guide section located in the rotating cavity (42) and a second outer locking guide section located in the outer cavity of the handrail. During the rotation of the back plate, the first driving member (59) is pushed to slide to the outer end of the rotating shaft, so that the first locking member (61) is only adapted to the first external locking guide section or is adapted to both the first external locking guide section and the second external locking guide section at the same time.

5. The luggage-type trolley according to claim 4, characterized in that: The armrest turntable (44) is provided with a drive plate (3) on its outside. The drive plate (3) is provided with the outer port of the control window (35). The outer end of the inclined top rod (36) extends to the outside of the control window (35). The outer end of the inclined top rod (36) is provided with a wheel lock inclined surface (4) corresponding to the drive plate (3). The side wall of the outer cavity groove (45) of the handrail is provided with an outer locking groove (46), the outer locking groove (46) includes a first outer locking section (47) and a second outer locking section (48), the first outer locking section (47) is located on the outer end side of the rotating shaft relative to the second outer locking section (48); The inner end face of the first driving member (59) is provided with a first single inclined surface driving tooth (60) corresponding to the outer locking groove (46), and the first single inclined surface driving tooth (60) slides axially with the outer locking groove (46); The inner surface of the handrail turntable (44) is provided with a locking protrusion (52). The outer wall of the locking protrusion (52) includes a first protrusion section (53) and a second protrusion section (54) from the outer end to the inner end. The first protrusion section (53) is located outside the second outer locking section (48), and the bottom of the groove of the second outer locking section (48) passes through the outer wall of the first protrusion section (53). The outer wall of the locking boss (52) is rotatably fitted with the back plate rotating ring, and the inner edge of the outer end of the back plate rotating ring is provided with a first arc-shaped unlocking groove (65) corresponding to the first outer locking segment (47); When the rotating base (41), armrest turntable (44) and back panel are in the folded state, the first arc-shaped unlocking groove (65) and the second outer locking section (48) are misaligned. The end of the first arc-shaped unlocking groove (65) pushes the first single-sloping drive tooth (60) to move to the first outer locking section (47). The first drive member (59) pushes the first locking member (61) to move to the outer end of the rotating shaft, so that the first locking member (61) is only adapted to the first outer locking guide section. The drive plate (3) squeezes the wheel lock slope (4) as the armrest turntable (44) rotates and pushes the slope top rod (36) to move into the control window (35). The back plate rotates relative to the armrest turntable (44) in the unfolding direction until the first arc segment unlocking groove (65) and the second outer locking segment (48) coincide. The first spring (58) pushes the first locking member (61) to move towards the inner end of the rotating shaft, so that the first locking member (61) is simultaneously adapted to the first outer locking guide segment and the second outer locking guide segment. The armrest turntable (44) is rotated so that the armrest turntable (44) is in the unfolded state and locked relative to the rotating base (41). The drive plate (3) moves away from the inclined top rod (36) as the armrest turntable (44) rotates, and the inclined top rod (36) moves outward from the control window (35). The side wall of the locking boss (52) is provided with at least two positioning slots (55); The back plate is slidably fitted with a spring-loaded pin (63) that abuts against the side wall of the locking protrusion (52), and the front end of the spring-loaded pin (63) extends to the positioning slot (55).

6. The luggage-type trolley according to claim 5, characterized in that: The outer edge of the backrest (38) is provided with a spring latch (102) that abuts against the inner wall of the storage groove (2), and the inner wall of the storage groove (2) is provided with a first lock hole (8) for the spring latch (102) to be inserted. The backrest (38) has a hinged wrench (5) on its back, the wrench (5) is provided with a hook (6), and the spring lock tongue (102) is provided with a hook hole (7) for the hook (6) to be hooked. One end of the first drive cord (9) is connected to the wrench (5), and the other end of the first drive cord (9) is connected to the spring lock tongue (102); In the initial state, the backrest (38) is fastened to the storage slot (2) shown, the spring latch (102) is inserted forward into the positioning slot (55), the spring latch (102) pulls the wrench (5) through the first drive cord (9), the wrench (5) is against the back of the backrest (38), and the spring latch (102) extends out and is inserted into the first lock hole (8); When the wrench (5) is turned, the spring latch (102) is pulled out from the first lock hole (8), and the wrench (5) pulls the spring latch (102) out of the positioning slot (55) through the first drive cord (9).

7. The luggage-type trolley according to claim 5, characterized in that: The end face of the locking boss (52) is provided with an armrest inner cavity groove (49), and the outer surface of the turntable of the seat plate (40) is provided with a seat plate cavity groove (69). The armrest inner cavity groove (49) and the seat plate cavity groove (69) are engaged to form an inner locking cavity. The inner locking cavity is provided with a second guide (70) and an inner locking groove in axial direction from the inner cavity groove (49) of the armrest to the inner cavity groove (69); The second locking member (71) can slide axially but cannot rotate circumferentially relative to the inner locking cavity through the second guide member (70). The second guide member includes a first inner locking guide section located in the inner cavity groove of the armrest and a second inner locking guide section located in the seat cavity groove. A second spring (72) is provided between the second locking member (71) and the seat cavity groove (69). The second spring (72) pushes the second locking member (71) to slide towards the outer end of the inner locking cavity. The inner locking groove includes a first inner locking section (56) and a second inner locking section (57). The first inner locking section (56) is located in the second boss section (54) and connects the inside and outside of the second boss section (54). The second inner locking section (57) is located in the seat cavity groove (69). A second arc-shaped unlocking groove (66) is provided along the inner end of the back plate rotation. One end of the second arc-shaped unlocking groove (66) is provided with an exit slope (67) corresponding to the rotation direction. The second locking member (71) has a second single-sloping surface driving tooth (73) on its side wall. The second single-sloping surface driving tooth (73) passes through the first inner locking section (56) to the second arc-shaped unlocking groove (66). The slope of the second single-sloping surface driving tooth (73) is correspondingly set with the groove slope (67). When the armrest turntable (44), back panel turntable and seat plate (40) turntable are in the folded state, the first arc segment unlocking groove (65) and the second inner locking segment (57) are misaligned, so that the second single inclined surface drive tooth (73) moves to the second inner locking segment (57), and the second locking member (71) moves to the inner end of the rotating shaft. At this time, the second locking member (71) is only adapted to the second inner locking guide segment. The back panel rotates relative to the armrest turntable (44) in the unfolding direction until the second arc segment unlocking groove (66) and the second inner locking segment (57) coincide. The second spring (72) pushes the second locking member (71) to move to the outer end of the rotating shaft, so that the second locking member (71) is simultaneously adapted to the first inner locking guide segment and the second inner locking guide segment. The armrest turntable (44) is rotated so that the armrest turntable (44) is in the unfolded state and locked relative to the rotating base (41).

8. The luggage-type trolley according to claim 1, characterized in that: The handle assembly includes a handle body (74); The handle body (74) has a handle turntable (75) at its end. The handle turntable (75) has a handle cavity groove (76) on its surface. The side wall of the handle cavity groove (76) has a limit pin hole (84). A spring limit pin (79) pointing into the handle cavity groove (76) is provided in the limit pin hole (84). The tail end of the spring limit pin (79) is connected to one end of the drive cord (81). The other end of the drive cord (81) extends to the handle body (74). The bag body (1) is provided with base turntables (77) at both ends corresponding to the handle body (74). The base turntables (77) are provided with limiting bosses (78) corresponding to the handle cavity groove (76). The base turntables (77) are rotated and engaged with the handle cavity groove (76). The limiting bosses (78) are rotated and engaged with the handle cavity groove (76). The side wall of the limiting bosses (78) is provided with a plurality of limiting slots (80) that are adapted to the front end of the spring limiting pins (79).

9. The luggage-type trolley according to claim 8, characterized in that: The handle body (74) is provided with a squeezing part (91), the squeezing part (91) is longitudinally slidably engaged with a driving slider (92), the driving slider (92) is provided with a squeezing inclined surface (85), the squeezing part (91) is laterally slidably engaged with an unlocking switch (86), one side of the unlocking switch (86) is provided with a squeezing section (87), the other side of the unlocking switch (86) is provided with an unlocking inclined surface (88) adapted to the squeezing inclined surface (85), an unlocking spring (89) is provided between the unlocking switch (86) and the squeezing part (91), the unlocking spring (89) pushes the unlocking switch (86) to move away from the driving slider (92), the driving slider (92) slides towards one end of the driving cord (81), pressing the unlocking switch (86), the unlocking inclined surface (88) pushes the squeezing inclined surface (85), causing the driving slider (92) to slide away from the driving cord (81).

10. The luggage-type trolley according to claim 9, characterized in that: The bag body is provided with a storage compartment (10), and the opening of the storage compartment (10) is provided with a lid (11). One end of the lid (11) is hinged to the storage compartment (10), and the other end of the lid (11) is provided with a rotary switch (12). Locking rods (14) are provided on both sides of the rotary switch (12). The locking rods (14) slide relative to the box cover (11). The inner end of the locking rods (14) is provided with a pin. The rotary switch (12) is provided with a V-shaped contact surface (13) for the pin to be pulled. An outward push spring (15) is provided between the locking rods (14) and the box cover (11). The outward push spring (15) pushes the locking rods (14) outward from the box cover (11). The inner wall of the storage compartment (10) is provided with a second locking hole for the outer end of the locking rods (14) to be inserted. When the rotary switch (12) is rotated, the V-shaped contact surface (13) drives the pin, causing the locking rods (14) to retract inward.

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