阅读说明：本技术 一种车载品辅助转运装置及方法 (Vehicle-mounted product auxiliary transfer device and method ) 是由 罗英 李文强 李传晓 唐忠 李松 于 2019-11-06 设计创作，主要内容包括：本发明公开了一种车载品辅助转运装置及方法,包括固定底座,固定底座上设有立柱,立柱上套设有支撑板,支撑板顶部设有输送架,输送架一侧设有支承斜面,支承斜面上间隔设有斜面辊,通过在固定底座上设置立柱,在立柱上套设支撑板,并在支撑板顶部设置多个相互接触的输送架,并可根据行李箱的输送长度调节输送架的长度,减少搬运距离,并通过在输送架内设置平面辊,在搬运行李的过程中,可通过平面辊的转动带动行李箱平移,并通过设置在输送架一侧的支承斜面将行李箱滑动至相应的传送带上,大大减少了工作人员的体力消耗,提升了工作效率。(The invention discloses a vehicle-mounted product auxiliary transfer device and a vehicle-mounted product auxiliary transfer method, wherein the vehicle-mounted product auxiliary transfer device comprises a fixed base, an upright post is arranged on the fixed base, a supporting plate is sleeved on the upright post, a conveying frame is arranged at the top of the supporting plate, a supporting inclined surface is arranged on one side of the conveying frame, inclined surface rollers are arranged on the supporting inclined surface at intervals, the upright post is sleeved with the supporting plate, a plurality of conveying frames which are in mutual contact are arranged at the top of the supporting plate, the length of the conveying frames can be adjusted according to the conveying length of a luggage case, the conveying distance is reduced, and a plane roller is arranged in the conveying frame.)

1. The utility model provides a transport device is assisted to on-vehicle article, includes unable adjustment base (1), its characterized in that: be equipped with stand (2) on unable adjustment base (1), the cover is equipped with backup pad (3) on stand (2), backup pad (3) top is equipped with carriage (4), carriage (4) one side is equipped with supporting inclined plane (5), be equipped with inclined plane roller (6) on supporting inclined plane (5).

2. The vehicle-mounted auxiliary article transfer device according to claim 1, wherein: the conveying frame (4) comprises a first conveying frame (7), a second conveying frame (8) and a third conveying frame (9), the third conveying frame (9) is arranged between the first conveying frame (7) and the second conveying frame (8), first fixing plates (10) are arranged on two sides of the first conveying frame (7), second fixing plates (11) are arranged on two sides of the second conveying frame (8), and third fixing plates (12) are arranged on two sides of the third conveying frame (9).

3. The vehicle-mounted auxiliary article transfer device according to claim 2, wherein: first fixed plate (10), second fixed plate (11) and third fixed plate (12) inboard all are equipped with mounting groove (13), be equipped with plane roller (14) in mounting groove (13), first fixed plate (10) and second fixed plate bottom (11) portion all are equipped with first arch (15), first fixed plate (10), second fixed plate (11) and third fixed plate (12) left end all are equipped with second arch (16), second fixed plate (11) with the third fixed plate (12) outside is equipped with slide rail (17), be equipped with slider (18) in slide rail (17), head rod (19) that slider (18) side was equipped with, second fixed plate (11) with third fixed plate (12) top is equipped with spout (20), spout (20) right-hand member is equipped with recess (21), first fixed plate (10), The side surfaces of the second fixing plate (11) and the third fixing plate (12) are respectively provided with a second connecting rod (22).

4. The vehicle-mounted auxiliary article transfer device according to claim 2, wherein: be equipped with first spring (23) between first carriage (7) and third carriage (9), be equipped with first spring (23) between second carriage (8) and third carriage (9), first spring (23) are installed between first connecting rod (19) and second connecting rod (22).

5. The vehicle-mounted auxiliary article transfer device according to claim 1, wherein: pore canals are arranged on two sides of the supporting plate (3), and lifting rods (24) are arranged in the pore canals.

6. The vehicle-mounted auxiliary article transfer device according to claim 1, wherein: unable adjustment base (1) both sides are equipped with limit for height board (25) that are parallel to each other, limit for height board (25) middle part is equipped with perpendicular to unable adjustment base's slide (26), slide (26) both sides are equipped with the stopper that corresponds each other and are right (27), the stopper is equipped with two sets ofly at least to (27), and adjacent stopper (27) set up the interval between to.

7. The vehicle-mounted auxiliary article transfer device according to claim 1, wherein: the outer side of the upright post (2) is sleeved with a second spring (28), and the second spring (28) is arranged at the bottom of the supporting plate (3).

8. The vehicle-mounted auxiliary article transfer device according to claim 1, wherein: the two sides of the inclined surface roller (6) are provided with baffle plates, and at least two inclined surface rollers (6) are arranged linearly.

9. The vehicle-mounted auxiliary article transfer device according to claim 3, wherein: the first bulge (15) is matched with the sliding groove (20), and the second bulge (16) is matched with the groove (21).

10. A vehicle-mounted product assisted transfer method is characterized by comprising the following steps: use of a vehicle accessory auxiliary transfer device according to any of claims 1 to 9, comprising the operating steps of: a, butting a conveying frame (4) with the surface of a trolley with a luggage case, and placing the luggage on the surface of the conveying frame; step B, rotating the lifting rod (24) to enable the conveying frame (4) to rise under the action of the elastic force of the second spring (28), and horizontally placing the conveying frame (4) on the surface of the trolley; c, pushing the luggage case to slide on the conveying frame (4) to the supporting inclined plane (5) by a worker, and enabling the luggage case to slide down to a conveyor belt for conveying the luggage along the supporting inclined plane (5) under the action of gravity; and D, rotating the lifting rod (24), applying vertical downward pressure to the lifting rod (24) by a worker to enable the supporting plate (3) to descend, and translating the conveying frame (4) arranged on the trolley to the top of the supporting plate (3) to finish the recovery of the conveying frame (4).

Technical Field

The invention relates to a carrying device, in particular to a vehicle-mounted product auxiliary transferring device and method.

Background

The airport staff will follow the process of the luggage that the aircraft was taken off and transport to the conveyer belt on the right, and the conveyer belt on the right is connected with the carousel that the passenger got luggage department, and this handling process needs two people to accomplish, and the staff on the car carries luggage and hands over to the staff under the car, and the staff under the car is responsible for placing this luggage on the conveyer belt on the right side. One problem that this process exists is that, the luggage on the car is more and heavier, and staff's in-process physical demands at the transport transmission is very serious and efficiency is not high, consequently designs an auxiliary handling tool to help the workman carry out luggage and alleviate working strength, and it is just very important to improve efficiency.

Disclosure of Invention

One of the objectives of the present invention is to solve the above-mentioned deficiencies, and to provide a vehicle-mounted auxiliary transferring device and method, so as to solve the problems of heavy physical strength consumption and low working efficiency of airport workers during the process of transporting luggage.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a vehicle-mounted product auxiliary transfer device which comprises a fixed base, wherein an upright post is arranged on the fixed base, a supporting plate is sleeved on the upright post, a conveying frame is arranged at the top of the supporting plate, a supporting inclined plane is arranged on one side of the conveying frame, and inclined plane rollers are arranged on the supporting inclined plane at intervals.

Preferably, the further technical scheme is as follows: the conveying frame comprises a first conveying frame, a second conveying frame and a third conveying frame, the third conveying frame is arranged between the first conveying frame and the second conveying frame, first fixing plates are arranged on two sides of the first conveying frame, second fixing plates are arranged on two sides of the second conveying frame, and third fixing plates are arranged on two sides of the third conveying frame.

The further technical scheme is as follows: first fixed plate, second fixed plate and third fixed plate inboard all are equipped with the mounting groove, be equipped with the plane roller in the mounting groove, first fixed plate all is equipped with first arch with second fixed plate bottom, first fixed plate, second fixed plate and third fixed plate left end all are equipped with the second arch, the second fixed plate with the third fixed plate outside is equipped with the slide rail, be equipped with the slider in the slide rail, the head rod that the slider side was equipped with, the second fixed plate with third fixed plate top is equipped with the spout, the spout right-hand member is equipped with the recess, first fixed plate, second fixed plate and third fixed plate side all are equipped with the second connecting rod.

The further technical scheme is as follows: and a first spring is arranged between the first conveying frame and the third conveying frame, a first spring is arranged between the second conveying frame and the third conveying frame, and the first spring is arranged between the first connecting rod and the second connecting rod.

The further technical scheme is as follows: pore canals are arranged on two sides of the supporting plate, and lifting rods are arranged in the pore canals.

The further technical scheme is as follows: the unable adjustment base both sides are equipped with the limit for height board that is parallel to each other, limit for height board middle part is equipped with perpendicular to unable adjustment base's slide, the slide both sides are equipped with the stopper of mutual correspondence right, the stopper is to being equipped with two sets ofly at least, and adjacent the stopper sets up to the interval between right.

The further technical scheme is as follows: the stand outside cover is equipped with the second spring, the second spring is arranged in the backup pad bottom.

The further technical scheme is as follows: the two sides of the inclined plane roller are provided with baffle plates, and at least two inclined plane rollers are arranged linearly.

The further technical scheme is as follows: the first bulge is matched with the sliding groove, and the second bulge is matched with the groove.

The invention also provides a vehicle-mounted product auxiliary transferring method, which uses the vehicle-mounted product auxiliary transferring device and comprises the following operation steps: step A, butting a conveying frame with the surface of a trolley with a luggage case, and placing the luggage on the surface of the conveying frame; step B, rotating the lifting rod to enable the conveying frame to rise under the action of the elastic force of the second spring, and horizontally placing the conveying frame on the surface of the trolley; c, the worker pushes the luggage case to slide on the conveying frame to the supporting inclined plane, and the luggage case slides down to the conveyor belt for conveying the luggage along the supporting inclined plane under the action of gravity; and D, rotating the lifting rod, applying vertical downward pressure to the lifting rod by a worker to enable the supporting plate to descend, and translating the conveying frame arranged on the trolley to the top of the supporting plate to finish the recovery of the conveying frame.

Compared with the prior art, the invention has the following beneficial effects: through set up the stand on unable adjustment base, the backup pad is established to the cover on the stand, and set up a plurality of carriage of mutual contact at the backup pad top, and can be according to the length of the transport length adjustment carriage of suitcase, reduce the transport distance, and through set up the plane roller in the carriage, at the in-process of transport luggage, the rotation of accessible plane roller drives the suitcase translation, and slide the suitcase to corresponding conveyer belt through the supporting inclined plane that sets up in carriage one side, staff's physical demands has significantly reduced, and work efficiency is promoted.

Drawings

Fig. 1 is a schematic perspective view illustrating a vehicle-mounted auxiliary transport device according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view illustrating a first fixing plate according to another embodiment of the present invention.

Fig. 3 is a schematic perspective view illustrating a third fixing plate according to another embodiment of the present invention.

Fig. 4 is a perspective view illustrating a second fixing plate according to another embodiment of the present invention.

Fig. 5 is a schematic structural view illustrating a rear view of a first fixing plate according to still another embodiment of the present invention.

Fig. 6 is a schematic structural view illustrating a rear view of a third fixing plate according to still another embodiment of the present invention.

Fig. 7 is a schematic structural view illustrating a rear view of a second fixing plate according to still another embodiment of the present invention.

Fig. 8 is a schematic structural view illustrating a front view of the auxiliary transfer device for vehicle-mounted goods in still another embodiment of the present invention.

Fig. 9 is an enlarged view illustrating a connection portion of a first carriage and a third carriage according to still another embodiment of the present invention.

Fig. 10 is a perspective view illustrating a support slope according to still another embodiment of the present invention.

In the figure, 1 is a fixed base, 2 is a column, 3 is a support plate, 4 is a carriage, 5 is a support slope, 6 is a slope roller, 7 is a first carriage, 8 is a second carriage, 9 is a third carriage, 10 is a first fixing plate, 11 is a second fixing plate, 12 is a third fixing plate, 13 is a mounting groove, 14 is a plane roller, 15 is a first protrusion, 16 is a second protrusion, 17 is a slide rail, 18 is a slide block, 19 is a first connecting rod, 20 is a slide groove, 21 is a groove, 22 is a second connecting rod, 23 is a first spring, 24 is a lifting rod, 25 is a height limiting plate, 26 is a slide rail, 27 is a pair of limiting blocks, and 28 is a second spring.

Detailed Description

The invention is further elucidated with reference to the drawing.

Referring to fig. 1 and 10, an embodiment of the present invention is an auxiliary transferring device for vehicle-mounted articles, including a fixed base 1, wherein the fixed base 1 is provided with four upright columns 2, the upright columns 2 are perpendicular to the fixed base 1, the upright columns 2 are sleeved with supporting plates 3, the supporting plates 3 are perpendicular to the upright columns 2 and can slide along the central axis direction of the upright columns 2, a conveying frame 4 is arranged on the top of the supporting plates 3 for moving luggage on the conveying frame 4 by a worker to improve the working efficiency, the conveying frame 4 is fixed and supported by the supporting plates 3 to improve the stability of the conveying frame 4, the fixed base 1 is provided with a bearing inclined plane 5, the surface of the bearing inclined plane 5 is matched with the conveying frame 4, the bearing inclined plane 5 is provided with a right-angle inclined plane roller 6, at least two inclined plane rollers 6 are arranged, the number of the inclined rollers 6 can be any one of two or more, the number of the inclined rollers 6 can be reasonably selected according to the length of the supporting inclined surface 5 and the specific situation of the trolley, the adjacent inclined rollers 6 are arranged at intervals and have consistent intervals, the adjacent inclined rollers 6 are linearly arranged, the vertical distances from the axes of the adjacent inclined rollers 6 to the supporting inclined surface 5 are the same, and the inclined rollers can rotate along the axes of the inclined rollers 6 and are used for sliding the luggage down from the inclined rollers 6.

Referring to fig. 1, 2, 3 and 4, in another embodiment of the present invention, in order to improve the conveying efficiency, the conveying frame 4 includes a first conveying frame 7 and a second conveying frame 8, the first conveying frame 7 is movably installed at the uppermost end of the conveying frame 4, the second conveying frame 8 is installed at the lowermost end of the conveying frame 4 and is fixed on the supporting plate 3 by a screw, a third conveying frame 9 is provided between the first conveying frame 7 and the second conveying frame 8, at least two groups of the third conveying frames 9 are provided, and the actual number of groups can be arranged according to the specific situation of the trolley, and can be increased or decreased, the physical consumption of the worker can be reduced, and the working efficiency can be improved, wherein first fixing plates 10 parallel to each other are provided at both sides of the first conveying frame 7, second fixing plates 11 parallel to each other are provided at both sides of the second conveying frame 8, third fixing plates 12 are disposed on both sides of the third carriage 9 in parallel.

Referring to fig. 2, 3, 4, 5, 6, 7, 9, in another embodiment of the present invention, in order to further improve the conveying efficiency and the stability of the conveying frame 4, mounting grooves 13 are respectively formed inside the first fixing plate 10, the second fixing plate 11, and the third fixing plate 12, the mounting grooves 13 are preferably arc-shaped, both ends of the major arc of the mounting groove 13 are respectively connected to the top surfaces of the inner sides of the first fixing plate 10, the second fixing plate 11, and the third fixing plate 12, at least two mounting grooves 13 are formed and spaced from each other and are linearly arranged, the spacing between adjacent mounting grooves 13 is consistent, a flat roller 14 is disposed in the mounting groove 13, the flat roller 14 is a hollow cylindrical shape, and the top of the flat roller 14 is higher than the top surfaces of the first fixing plate 10, the second fixing plate 11, and the third fixing plate 12, the luggage case can be simultaneously positioned on the plane roller 14 and the fixing plates arranged at two sides of the plane roller 14 in the process of sliding on the conveying frame 4, the conveying width of the conveying frame 4 is improved, the sliding space of the luggage case on the conveying frame 4 is enlarged, the friction between the luggage case and the fixing plates in the process of sliding on the plane roller 14 is avoided, the cost is reduced, the conveying efficiency is improved, the phenomenon that the moving space of the luggage on the conveying frame 4 is influenced when the fixing plates are higher than the plane roller 14, the fixing plates are easy to collide in the conveying process, even the luggage case is prevented from moving and the like is avoided, the phenomenon that the friction resistance is generated between the luggage case and the fixing plates when the luggage slides on the plane roller 14 and the conveying efficiency of the luggage is influenced when the top of the fixing plates and the plane roller 14 are positioned on the same plane is avoided, the number of the mounting grooves 13 is two times of the number of the plane rollers 14, and the diameter of the mounting grooves 13, the fixing device is used for enabling the plane roller 14 to rotate in the mounting groove 13, and fixing rods are arranged among the first fixing plate 10, the second fixing plate 11 and the third fixing plate 12, the fixing rods are fixedly mounted at the circle center of the mounting groove 13 and are arranged on the axis in the plane roller 14 and used for fixing the two fixing plates which correspond to each other, and the length, the width and the height among the first fixing plate 10, the second fixing plate 11 and the third fixing plate 12 are the same.

A first protrusion 15 is disposed at the bottom of each of the first fixing plate 10 and the second fixing plate 11, a second protrusion 16 is disposed at the left end of each of the first fixing plate 10, the second fixing plate 11 and the third fixing plate 12, a slide rail 17 is disposed at the outer side of each of the second fixing plate 11 and the third fixing plate 12, the rail direction of the slide rail 17 is parallel to the moving direction of the baggage on the transportation frame 4, a slide block 18 is mounted in the slide rail 17, the slide block 18 can slide along the rail direction of the slide rail 17, a first connecting rod 19 is disposed at the side of the slide block 18, the first connecting rod 19 is perpendicular to the first fixing plate 10, a slide groove 20 is disposed at the top of each of the second fixing plate 11 and the third fixing plate 12, the slide groove 20 is parallel to the slide rail 17, the first protrusion 15 is engaged with the slide groove 20, so that the first transportation frame 7, the second transportation frame 8 and the third transportation frame 9 can slide relatively, the length of the conveying frame 4 is adjusted according to the conveying distance, the conveying efficiency of workers is improved, a groove 21 is arranged at the right end of the sliding chute 20, the groove 21 corresponds to and is matched with the second bulge 16, second connecting rods 22 are arranged on the side surfaces of the first fixing plate 10, the second fixing plate 11 and the third fixing plate 12, the second connecting rods 22 are arranged at one end close to the second bulge 16 and are arranged above the sliding rail 17 at intervals, the second connecting rods 22 correspond to the first connecting rods 19, meanwhile, first springs 23 are arranged between the first conveying frame 7 and the third conveying frame 9, first springs 23 are arranged between the second conveying frame 8 and the third conveying frame 9, the first springs 23 are detachably fixed between the first connecting rods 19 and the second connecting rods 22, and the adjacent first conveying frame 7 and the third conveying frame 9 after being horizontally moved are fixed through the elastic force of the first springs 23, or the adjacent second conveying frame 8 and the third conveying frame 9 after translation are fixed, so that the stability of the conveying frame 4 is improved.

The height of the first bulge 15 is consistent with the depth of the sliding groove 20, the first bulge 15 and the sliding groove 20 correspond to each other and are matched with each other, and the adjacent first conveying frame 7 and the adjacent third conveying frame 9 can slide transversely relatively, or the adjacent second conveying frame 8 and the adjacent third conveying frame 9 can slide transversely relatively, so that the length of a conveying track of the luggage case can be prolonged according to conveying requirements, and conveying efficiency is improved.

Referring to fig. 1, 2 and 8, in another embodiment of the present invention, height-limiting plates 25 are disposed on two sides of the fixed base 1 in parallel to each other, a sliding way 26 perpendicular to the fixed base 1 is disposed in the middle of the two height-limiting plates 25, and pairs of limiting blocks 27 corresponding to each other are disposed on two sides of the sliding way 26, at least two sets of the pairs of limiting blocks 27 are disposed and perpendicular to the height-limiting plates 25, the pairs of limiting blocks 27 can be arranged in an actual number according to the specific conditions of the cart, the pairs of limiting blocks 27 are disposed at intervals, the distance between the pairs of limiting blocks 27 is the same as the height of the first fixed plate 10, a hole channel is disposed on two sides of the support plate 3, and a lifting rod 24 is disposed in the hole channel, the cross section of the lifting rod 24 is in a horizontal "T" shape, the bottom end of the lifting rod 24 is matched with the hole channel, and the lifting rod 24 can slide up and down along a slide way 26 arranged in the middle of the height limiting plate 25 and is used for lifting the supporting plate 3, so that the length of the conveying track is increased.

Referring to fig. 1 and 8, in another embodiment of the present invention, in order to reduce the physical consumption of the worker and improve the working efficiency, a second spring 28 is sleeved on the outer side of the upright 2, the second spring 28 is a supporting spring and is fixedly installed at the bottom of the supporting plate 3 and is abutted against the supporting plate 3, in the normal state, the second spring 28 is in a compressed state and applies upward elastic force to the supporting plate 3, by installing the lifting rods 24 in the holes at both sides of the supporting plate 3 and being arranged below the pair of stoppers 27 and being abutted against the pair of stoppers 27, and the lifting rods 24 can slide up and down along the slide ways 26 arranged in the middle of the pair of stoppers 25, when the length of the carriage 4 needs to be increased, the worker can rotate the lifting rods 24 at both sides of the supporting plate 3 by 90 ° and pass through the pair of stoppers 27 in contact with the lifting rods, and the supporting plate 3 is pushed upwards by the elasticity of the second spring 28, after the conveying frame 4 is lengthened, the worker rotates the lifting rod 24 by 90 degrees again, and simultaneously, under the elasticity action of the second spring 28, the vertical upward lifting force is exerted on the supporting plate 3, and the lifting rod 24 is enabled to be mutually abutted with the bottom of the upper-level limiting block pair 27, so that the length of the conveying track is convenient to increase, an upward pushing force is provided for the conveying frame 4 by the elasticity action of the second spring 28, the physical consumption of the worker when the conveying frame 4 is lengthened is reduced, the length of the conveying frame 4 is easier to adjust, and the working efficiency is improved.

Referring to fig. 1, 2, 8, 9, 10, in a further embodiment of the present invention, baffles are disposed on both sides of the ramp roller 6, the top of the ramp roller 6 is also higher than the top of the baffles for preventing friction with the baffles when the luggage slides down from the ramp roller 6, thereby improving the conveying efficiency, the baffles can be fixed on the supporting ramp 5 by welding or screwing, the supporting ramp 5 is fixedly mounted on the fixing base 1 by screwing, the bottom of the supporting ramp 5 exceeds the fixing base 1, the excess part of the supporting ramp 5 can be determined according to the actual situation and is used for contacting with the conveyor belt for conveying the luggage, so that the luggage directly enters the conveyor belt for conveying the luggage when sliding down from the supporting ramp 5, thereby improving the working efficiency, preventing the luggage from being stuck between the supporting ramp 5 and the conveyor belt when sliding down from the supporting ramp 5, affecting the efficiency of the work, when the baggage slides to the end of the conveyor 4, it enters the support ramp 5, slides down the ramp from the ramp rollers 6 by its own weight and slides onto the conveyor belt for transporting the baggage.

Referring to fig. 1 and 8, in another embodiment of the present invention, in order to facilitate the movement, four universal wheels are disposed at the bottom of the fixing base 1, and are uniformly distributed at four bottom corners of the bottom of the fixing base 1, so as to facilitate the movement and improve the working efficiency.

The invention further provides a vehicle-mounted product auxiliary transferring method, which uses a vehicle-mounted product auxiliary transferring device and comprises the following operation steps: step A, butting a conveying frame 4 with the surface of a trolley with a luggage case, and placing the luggage on the surface of the conveying frame 4; step B, rotating the lifting rod 24 to enable the conveying frame 4 to lift under the action of the elastic force of the second spring 28, and horizontally placing the conveying frame 4 on the surface of the trolley; c, the worker pushes the luggage case to slide on the conveying frame 4 to the supporting inclined plane 5, and the luggage case slides down to the conveyor belt for conveying the luggage along the supporting inclined plane 5 under the action of gravity; and D, rotating the lifting rod 24, applying vertical downward pressure to the lifting rod 24 by a worker to lower the support plate 3, and translating the conveying frame 4 arranged on the trolley to the top of the support plate 3 to finish the recovery of the conveying frame 4.

Specifically, in practical use, before carrying the luggage, by moving the device to one side of a conveyor belt for conveying the luggage, and translating the first carriage 7 arranged at the uppermost end of the fixed base 1 by an operator in the direction of the chute 20 onto a deck on which the luggage is placed, the first carriage 7 at the uppermost end of the fixed base 1 and the third carriage 9 adjacent to the bottom thereof are connected by the first spring 23 arranged between the first connecting rod 19 and the second connecting rod 22, when translating the first carriage 7 at the uppermost end, the first spring 23 is in a stretched state under the tensile force of the second connecting rod 22, and a tensile force in the contraction direction of the first spring 23 is applied to the slider 18 connected to the other end of the first spring 23, and at this time, the slider 18 slides in the direction of the slide rail 17 under the tensile force of the first spring 23, when the second protrusion 16 arranged in the first carriage 7 at the uppermost end is engaged in the groove 21 in the third carriage 9 adjacent thereto, the slide block 18 is located at the farthest end of the slide rail 17, and at this time, the first spring 23 is in a stretching state and fixes the adjacent first conveying frame 7 and the adjacent third conveying frame 9, so that the first conveying frame 7 and the adjacent third conveying frame 9 are prevented from sliding relatively when the luggage box is conveyed, and the stability is improved.

When the length of the conveying track needs to be increased, the lifting rods 24 arranged on the two sides of the height limiting plate 25 can be rotated by 90 degrees by workers, the supporting plate 3 is pushed upwards by the elastic force of the second spring 28, meanwhile, the lifting rods 24 slide upwards in the slide ways 26, when the lifting rods 24 are close to the upper-stage stopper pair 27, the workers can rotate the lifting rods 24 by 90 degrees, the tops of the lifting rods 24 are abutted against the bottoms of the upper-stage stopper pair 27 under the elastic force of the second spring 28, and at the moment, the second protrusions 16 of the first conveying frames 7 correspond to the grooves 21 of the adjacent third conveying frames 9 and are matched with each other and located on the same plane, so that the conveying length of the conveying frames 4 is increased, and the working efficiency is improved.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.

Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.