Backrest device on electric luggage case

Abstract

The utility model discloses a backrest device on an electric luggage case, and particularly relates to the technical field of electric luggage cases, the backrest device comprises an electric luggage case body, the upper surface of the electric luggage case body is fixedly connected with two cushions, the top end of the electric luggage case body is provided with a backrest assembly, and one side of the backrest assembly is provided with a supporting mechanism; the backrest assembly comprises two fixed shells, the fixed shells are fixedly connected with the top end of the electric luggage case body, the top ends of the fixed shells are rotatably connected with threaded rods, the top ends of the threaded rods are fixedly connected with rotary knobs, and the outer sides of the threaded rods are in threaded connection with movable plates. By arranging the backrest assembly, the chair can be adjusted to the best sitting posture according to the requirements of a user, back fatigue and discomfort caused by long-time sitting can be effectively relieved, meanwhile, additional supporting points can be provided for the backrest, and therefore the stability of the backrest is enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric suitcase technical field, more specifically, the utility model relates to the backrest device on electric suitcase. BACKGROUND

[0002] The electric suitcase is a kind of equipment combined with electric drive and suitcase function, to improve the security of luggage and the convenience of use.

[0003] In actual use, part of electric suitcase only keeps the user stable by handle, lacks support in the back in the use process, and it is easy to feel fatigue and discomfort for long time ride, and it is easy to lose balance due to bumping or turning in the driving process, increases the risk of falling. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of prior art, the utility model provides the backrest device on electric suitcase to solve the problems in the above background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The backrest device on electric suitcase, including electric suitcase body, the upper surface of the electric suitcase body is fixedly connected with two seat cushions, the top of the electric suitcase body is installed with backrest assembly, the one side of the backrest assembly is installed with support mechanism;

[0007] The backrest assembly includes two fixed shells, the fixed shell is fixedly connected with the top of the electric suitcase body, the top of the fixed shell is rotatably connected with threaded rod, the top of the threaded rod is fixedly connected with the screw knob, the outer side of the threaded rod is screw-connected with movable plate, the bottom of the movable plate is provided with first sliding groove, the first sliding groove is slidably connected with first sliding block in the inner side, the bottom of the first sliding block is fixedly connected with connecting rod, the bottom cut surface of the movable plate is adapted to the cut surface of the one side of the connecting rod, the one end of the connecting rod is fixedly connected with limit ring, the second sliding block is fixedly connected with the both sides of the limit ring, a plurality of second sliding grooves are formed in the inner side of the fixed shell, the second sliding block is slidably connected with the inner side of the second sliding groove, two telescopic springs are fixedly connected in the fixed shell, one end of the telescopic spring is fixedly connected with the one side of the limit ring, the first gear is clamped between the two limit rings, the rotating shaft is fixedly connected with the inner side of the first gear, the rotating shaft is rotatably connected with the inner side of the fixed shell, the outer side of the rotating shaft is fixedly connected with backrest, the second gear is engaged with the outer side of the first gear, the first connecting shaft is fixedly connected in the inner side of the second gear, and the first connecting shaft is rotatably connected with the inner side of the fixed shell.

[0008] By adopting the above technical scheme: the angle of backrest can be adjusted according to the actual needs of the user, thereby improving the comfort degree in the use process.

[0009] As the further description of the above technical scheme: the supporting mechanism includes two placing grooves, the two placing grooves are arranged on the backrest side, a clamping groove is arranged on the inner side of the placing groove, a second connecting shaft is rotatably connected to the inner side of the placing groove, a supporting plate is rotatably connected to the outer side of the second connecting shaft, a clamping block is fixedly connected to one side of the supporting plate, the clamping block is clamped with the clamping groove, a limiting plate is arranged at the bottom end of the supporting plate, the limiting plate is fixedly connected to the top end of the electric luggage case body, and a plurality of limiting grooves are arranged on the upper surface of the limiting plate.

[0010] By adopting the above technical scheme: two supporting points can be provided on the backrest side, thereby enhancing the stability of the backrest and making the backrest have good supporting effect.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] 1. By setting up the backrest assembly, compared with the prior art, the optimal sitting posture can be adjusted according to the needs of the user, the back fatigue and discomfort caused by long-time riding can be effectively relieved, the user's back is provided with additional support, the balance and stability of the body are helped to maintain, and the risk of falling due to bumping or turning is reduced.

[0013] 2. By setting up the supporting mechanism, compared with the prior art, additional supporting points can be provided for the backrest, the backrest can be effectively prevented from shaking due to bumping or external force during driving, thereby enhancing the stability of the backrest, and the backrest can maintain good supporting effect. DRAWINGS

[0014] Figure 1 It is the overall structure schematic view of the utility model.

[0015] Figure 2 It is the right side structure schematic view of the electric luggage case body of the utility model.

[0016] Figure 3 It is the fixed shell section view structure schematic view of the utility model.

[0017] Figure 4 It is the local structure schematic view of the backrest connecting part of the utility model.

[0018] Figure 5 It is the right side structure schematic view of the backrest of the utility model.

[0019] Figure 6 It is the Figure 2 It is the enlarged view structure schematic view of part A of the utility model.

[0020] The reference signs are: 1, electric luggage body; 2, cushion; 3, fixed shell; 4, threaded rod; 5, turn button; 6, movable plate; 7, first sliding groove; 8, first sliding block; 9, connecting rod; 10, limiting ring; 11, second sliding block; 12, second sliding groove; 13, telescopic spring; 14, first gear; 15, rotating shaft; 16, second gear; 17, first connecting shaft; 18, backrest; 19, second connecting shaft; 20, support plate; 21, clamping block; 22, limiting plate; 23, limiting groove; 24, placing groove; 25, clamping groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] The embodiments of the present application disclose a backrest device on an electric luggage as shown in Figures 1-6 The backrest device on the electric luggage comprises an electric luggage body 1, two cushions 2 are fixedly connected to the upper surface of the electric luggage body 1, a backrest assembly is installed at the top end of the electric luggage body 1, and a supporting mechanism is installed on one side of the backrest assembly.

[0023] The backrest assembly comprises two fixed shells 3 fixedly connected with the top end of the electric luggage case body 1, a threaded rod 4 rotatably connected with the top end of the fixed shell 3, a rotating knob 5 fixedly connected with the top end of the threaded rod 4, a movable plate 6 threadedly connected with the outer side of the threaded rod 4, a first sliding groove 7 formed in the bottom end of the movable plate 6, a first sliding block 8 slidably connected with the inner side of the first sliding groove 7, a connecting rod 9 fixedly connected with the bottom end of the first sliding block 8, a bottom end section of the movable plate 6 matched with a side section of the connecting rod 9, a limiting ring 10 fixedly connected with one end of the connecting rod 9, a second sliding block 11 fixedly connected with both sides of the limiting ring 10, a plurality of second sliding grooves 12 formed in the inner side of the fixed shell 3, the second sliding block 11 slidably connected with the inner side of the second sliding groove 12, two extension springs 13 fixedly connected with the inner side of the fixed shell 3, one end of the extension spring 13 fixedly connected with one side of the limiting ring 10, a first gear 14 clamped between the two limiting rings 10, a rotating shaft 15 fixedly connected with the inner side of the first gear 14, the rotating shaft 15 rotatably connected with the inner side of the fixed shell 3, a backrest 18 fixedly connected with the outer side of the rotating shaft 15, a second gear 16 meshed with the outer side of the first gear 14, a first connecting shaft 17 fixedly connected with the inner side of the second gear 16, the first connecting shaft 17 rotatably connected with the inner side of the fixed shell 3, the rotating shaft 15 connected with the second gear 16 through the meshing of the first gear 14, so that the rotating shaft 15 can stably drive the backrest 18 to adjust the angle, when the backrest 18 is adjusted, the threaded rod 4 can drive the movable plate 6 to move downward through the thread, the bottom end section of the movable plate 6 matched with the side section of the connecting rod 9, so that the movable plate 6 can extrude and push the connecting rod 9 to move when moving downward, the first sliding groove 7 and the first sliding block 8 slidably connected with the inner side, can provide a guiding action for the extrusion of the movable plate 6 to the connecting rod 9, so as to drive the limiting ring 10 to move to one side of the first gear 14, the extension spring 13 used for resetting the connecting rod 9 when the movable plate 6 does not extrude the connecting rod 9, so that the first gear 14 can rotate, so that the user can adjust to the best sitting posture according to the needs, which can effectively relieve the back fatigue and discomfort caused by long time riding.

[0024] Reference Figure 5 and 6As shown, the support mechanism includes two placing grooves 24 opened on one side of the backrest 18, a clamping groove 25 is opened on the inner side of the placing groove 24, a second connecting shaft 19 is rotatably connected to the inner side of the placing groove 24, a support plate 20 is rotatably connected to the outer side of the second connecting shaft 19, a clamping block 21 is fixedly connected to one side of the support plate 20, the clamping block 21 is clamped with the clamping groove 25, a limiting plate 22 is arranged at the bottom end of the support plate 20 and is fixedly connected to the top end of the electric luggage body 1, a plurality of limiting grooves 23 are opened on the upper surface of the limiting plate 22, the second connecting shaft 19 is rotatably connected to the inner side of the placing groove 24, so that the support plate 20 can be rotated to the outer side of the placing groove 24 and can be abutted in one of the limiting grooves 23 on the upper surface of the limiting plate 22, so that the two support plates 20 can form support points on one side of the backrest 18, which can effectively reduce the shaking of the backrest during driving due to bumps or external forces, thereby enhancing the stability of the backrest 18.

[0025] The utility model discloses a backrest device on electric luggage, and the specific structure is as shown in the attached Figures 1-6 As shown, in the technical scheme, when the backrest is needed to be used, the backrest 18 is first pulled, the backrest 18 is rotatably connected with the inside of the fixed shell 3 through the rotating shaft 15, so that the backrest 18 can be rotated by 180 degrees, and meanwhile the rotating shaft 15 can drive the first gear 14 and the second gear 16 to mesh, the first gear 14 and the second gear 16 are meshed and connected, so that the backrest 18 can be stably rotated, when the backrest 18 is adjusted to the appropriate angle, the support plate 20 is moved, so that the clamping block 21 is separated from the inner side of the clamping groove 25, the second connecting shaft 19 supports the support plate 20, so that the support plate 20 can be rotated to the outer side of the placing groove 24, and the bottom end of the support plate 20 is inserted into the appropriate position limiting groove 23, so that the two support plates 20 can form effective support points on one side of the backrest 18, thereby improving the support effect of the backrest 18, then the knob 5 is rotated, the knob 5 can drive the threaded rod 4 to rotate, the threaded rod 4 can drive the movable plate 6 to move downwards through the thread, the first sliding groove 7 and the first sliding block 8 are slidably connected to the inner side, and the bottom end section surface of the movable plate 6 is matched with the section surface on one side of the connecting rod 9, so that the movable plate 6 can extrude and push the connecting rod 9 to move when moving downwards, the connecting rod 9 can drive the limiting ring 10 to move towards the side of the rotating shaft 15, the second sliding block 11 and the second sliding groove 12 are slidably connected to the inner side, the second sliding groove 12 can provide a guiding action for the movement of the second sliding block 11, the first gear 14 and the second gear 16 are meshed and connected, so that when the first gear 14 stops rotating, the direction of the convex teeth of the first gear 14 is always consistent with the recess on the inner side of the limiting ring 10, so that when the two limiting rings 10 move to the outer side of the first gear 14, the first gear 14 can be limited, thereby the position of the backrest 18 can be limited.

[0026] Among them, the utility model discloses the embodiment in the drawing, only relate to the structure with the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiment of the utility model can be combined with each other;

[0027] The contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used, in the technical solution, the electric appliance control elements not mentioned belong to the prior art, so they are not shown in the drawings, and will not be described here.

[0028] Finally: the above is only preferred embodiment of the utility model, and is not used for limiting the utility model, and any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. Backrest device on an electric trolley, comprising an electric trolley body (1), characterized in that: The electric luggage body (1) upper surface is fixedly connected with two seat cushions (2), the electric luggage body (1) top is provided with a backrest assembly, and the backrest assembly is provided with a supporting mechanism on one side. The backrest assembly comprises two fixed shells (3), the fixed shell (3) is fixedly connected with the top of the electric luggage body (1), the top of the fixed shell (3) is rotatably connected with a threaded rod (4), the top of the threaded rod (4) is fixedly connected with a rotating button (5), the outer side of the threaded rod (4) is threadedly connected with a movable plate (6), the bottom of the movable plate (6) is provided with a first sliding groove (7), the inner side of the first sliding groove (7) is slidably connected with a first sliding block (8), the bottom of the first sliding block (8) is fixedly connected with a connecting rod (9), the bottom of the movable plate (6) is adapted to the side surface of the connecting rod (9), and the one end of the connecting rod (9) is fixedly connected with a limiting ring (10).

2. The backrest device on a motorized luggage according to claim 1, wherein: The limiting ring (10) is fixedly connected with a second sliding block (11) on both sides, a plurality of second sliding grooves (12) are formed in the inner side of the fixed shell (3), and the second sliding block (11) is slidably connected with the inner side of the second sliding groove (12).

3. The motorized backrest on luggage assembly of claim 2, wherein: The fixed shell (3) is fixedly connected with two telescopic springs (13) inside, one end of the telescopic spring (13) is fixedly connected with the side of the limiting ring (10), the first gear (14) is clamped between the two limiting rings (10), the inner side of the first gear (14) is fixedly connected with a rotating shaft (15), the rotating shaft (15) is rotatably connected with the inside of the fixed shell (3), and the outer side of the rotating shaft (15) is fixedly connected with a backrest (18).

4. The motorized backrest on luggage assembly of claim 3, wherein: The outer side of the first gear (14) is engaged with a second gear (16), the inner side of the second gear (16) is fixedly connected with a first connecting shaft (17), and the first connecting shaft (17) is rotatably connected with the inside of the fixed shell (3).

5. The motorized backrest on luggage assembly of claim 1, wherein: The supporting mechanism comprises two placing grooves (24), and the placing grooves (24) are formed on one side of the backrest (18), the inner side of the placing groove (24) is provided with a clamping groove (25), and the inner side of the placing groove (24) is rotatably connected with a second connecting shaft (19).

6. The motorized backrest on luggage assembly of claim 5, wherein: The outer side of the second connecting shaft (19) is rotatably connected with a supporting plate (20), one side of the supporting plate (20) is fixedly connected with a clamping block (21), and the clamping block (21) is clamped with the clamping groove (25).

7. The motorized backrest on luggage assembly of claim 6, wherein: The bottom of the supporting plate (20) is provided with a limiting plate (22), the limiting plate (22) is fixedly connected with the top of the electric luggage body (1), and a plurality of limiting grooves (23) are formed in the upper surface of the limiting plate (22).

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