CN111717100A - Supplementary discharge devices of express delivery - Google Patents
Supplementary discharge devices of express delivery Download PDFInfo
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- CN111717100A CN111717100A CN202010598128.8A CN202010598128A CN111717100A CN 111717100 A CN111717100 A CN 111717100A CN 202010598128 A CN202010598128 A CN 202010598128A CN 111717100 A CN111717100 A CN 111717100A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/52—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using rollers in the load-transporting element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
- B60P1/435—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle the ramp being attached to or making part of the side- or tailboards of the vehicle
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Abstract
The invention provides an express auxiliary unloading device which comprises a carriage body with a rear carriage door, a cargo transmission mechanism arranged at the bottom in the carriage body and a driving mechanism for driving the cargo transmission mechanism to convey; the goods transmission mechanism comprises more than two roller axes which are rotatably arranged at the bottom in the carriage body; except the first roller axis, the front end of each roller axis is provided with a first chain wheel; except the last roller axis, the rear end of each roller axis is provided with a second chain wheel; the first chain wheels of the roller axis are grouped in pairs, and are connected with the first chain wheels of the same group through a first roller chain; the second chain wheels of the roller axes are grouped in pairs, and are connected with the second chain wheels of the same group through a second roller chain. The roller chains are staggered at the front end and the rear end of each roller axis, and one roller chain is only used for driving the adjacent two roller axes to transmit, so that the condition of looseness in the using process can be effectively prevented.
Description
Technical Field
The invention relates to a discharging device, in particular to an auxiliary discharging device for express delivery.
Background
With the development of social modernization, the living standard of people is greatly improved, the consumption mode is greatly changed, and online shopping becomes the current mainstream consumption mode; with the appearance of online shopping consumption modes, the rapid development of the express service industry is promoted.
As is well known, most express delivery goods are carried through the express delivery car at present, need artifical manual go to unload after the express delivery car transports goods to the assigned position in the past, cause inefficiency, also increased the express delivery person's work burden. In order to improve the unloading efficiency of express delivery, various automatic unloading devices are applied to the express delivery car. If the application date is 2016.04.11, the Chinese utility model patent with the application number of 201620295887.6 discloses an express delivery vehicle loading and unloading device, which consists of a support, a main support, an auxiliary support, a roller, a conveyor belt, a connecting rod, a shovel, a roller and an inductor; the conveying device is combined with the carriage, and the conveying belt is driven by electric power, so that the function of automatically loading and unloading goods is realized. However, the prior unloading device has the following disadvantages in the practical use process: a conveying belt is utilized to drive a row of rollers to convey goods, so that the conditions of loosening, damage and the like of the conveying belt are easy to occur in the using process, and the conveying belt is not suitable for conveying heavy goods; meanwhile, in the process of opening the carriage door for unloading, the goods above the carriage door easily and directly fall off from the carriage under the action of inertia, so that the carriage door is dangerous and the goods are easy to damage.
Disclosure of Invention
The invention aims to solve the technical problem of providing an auxiliary unloading device for express delivery, which is used for solving the problem that a conveyor belt is easy to loosen and damage in the using process of the conventional unloading device.
The invention is realized by the following steps: an express auxiliary unloading device comprises a carriage body with a rear carriage door, a cargo transmission mechanism arranged at the bottom in the carriage body and a driving mechanism for driving the cargo transmission mechanism to convey; the goods transmission mechanism comprises more than two roller axes which are rotatably arranged at the bottom in the carriage body;
except the first roller axis, the front end of each roller axis is provided with a first chain wheel; except the last roller axis, the rear end of each roller axis is provided with a second chain wheel; the first chain wheels of the roller axis are grouped in pairs, and are connected with the first chain wheels of the same group through a first roller chain; the second chain wheels of the roller axes are grouped in pairs, and are connected with the second chain wheels of the same group through a second roller chain.
Furthermore, the device also comprises brackets fixedly arranged at two sides of the bottom in the carriage body, and the axis of the roller is rotatably pivoted on the brackets at two sides.
Further, the front end part of the roller axis is rotatably connected with the bracket at the front side through a first bearing.
Further, the rear end part of the roller axis is rotatably connected with the bracket at the rear side through a second bearing.
Furthermore, a first step is arranged at the front end part of the axis of the roller, and an inner ring of the first bearing is sleeved on the first step.
Furthermore, a first bearing hole is formed in the support on the front side, and an outer ring of the first bearing is fixedly sleeved on the first bearing hole.
Furthermore, a second step is arranged at the rear end of the axis of the roller, and the inner ring of the second bearing is sleeved on the second step.
Furthermore, a second bearing hole is formed in the support at the rear side, and an outer ring of the second bearing is fixedly sleeved on the second bearing hole.
Furthermore, a third step adjacent to the first step is arranged at the front end of the axis of the roller, and the third step is sleeved with the first chain wheel.
Further, the radius of the third step is larger than that of the first step.
Further, the radius of the drum axis is larger than the radius of the third step.
Furthermore, the outer surface of the third step is provided with a first key groove, the inner wall of the first chain wheel is provided with a second key groove matched with the first key groove, and the third step and the first chain wheel are combined together through a first key.
Further, the first key is a flat key.
Furthermore, a fourth step adjacent to the second step is arranged at the rear end of the axis of the roller, and the second chain wheel is sleeved on the fourth step.
Further, the radius of the fourth step is larger than that of the second step.
Further, the radius of the drum axis is larger than the radius of the fourth step.
Furthermore, the outer surface of the fourth step is provided with a third key groove, the inner wall of the second chain wheel is provided with a fourth key groove matched with the third key groove, and the fourth step and the second chain wheel are combined together through a second key.
Further, the second key is a flat key.
Furthermore, a first end cover is arranged on the end face of the front end of the axis of the roller in a matching mode, and the first end cover is fixedly arranged on the outer surface of the front side support.
Furthermore, a first bearing seat sleeve which is propped against the first bearing outer ring is arranged on the inner surface of the first end cover.
Furthermore, a second end cover is arranged on the end face of the rear end of the axis of the roller in a matching mode, and the second end cover is fixedly arranged on the outer surface of the rear side support.
Furthermore, a second bearing seat sleeve which is propped against the outer ring of the second bearing is arranged on the inner surface of the second end cover.
Further, the middle part of the axis of the roller is provided with a rubber jacket.
Furthermore, the axes of the rollers are arranged between the brackets at two sides at equal intervals.
Further, the distance between the axes of the two adjacent rollers is 8-12 mm.
Further, the distance between the axes of two adjacent rollers is 10 mm.
Furthermore, the diameter of the middle part of the axis of the roller is 70-100 mm.
Further, the diameter of the middle part of the axis of the roller is 85 mm.
Furthermore, the rear carriage door comprises an upper door plate and a lower door plate, the top of the upper door plate is rotatably pivoted above the unloading outlet of the carriage body, and the bottom of the lower door plate is rotatably pivoted below the unloading outlet of the carriage body.
Furthermore, a stretching and supporting mechanism is arranged between the upper door plate and the wall surface of the unloading outlet, and the upper door plate is upwards jacked up through the stretching and supporting mechanism when the rear carriage door is opened, so that an included angle is formed between the upper door plate and the unloading outlet.
Furthermore, the stretching support mechanism comprises a push-pull inner rod, a push-pull rod sleeve and a spring;
the lower end of the push-pull rod sleeve is hinged to the wall surface of the unloading outlet, and an inserting cavity is formed in the push-pull rod sleeve; the upper end of the push-pull inner rod is hinged to the upper door plate, and the lower end of the push-pull inner rod is inserted into the inserting cavity; one end of the spring is propped against the inner bottom of the inserting cavity, and the other end of the spring props against the lower end of the push-pull inner rod.
Furthermore, the length of the inserting cavity is larger than that of the push-pull inner rod.
Furthermore, an inner plate which slides up and down is arranged on the inner surface of the lower door plate.
Furthermore, outer sliding grooves which are connected with the inner plate in a sliding mode are symmetrically arranged on two sides of the inner surface of the lower door plate.
Furthermore, the two sides of the inner plate are symmetrically provided with inner chutes which are in sliding connection with the lower door plate.
Furthermore, first arc-shaped baffles with inward concave inner surfaces are symmetrically arranged on two sides of the outer sliding groove.
Furthermore, the two sides of the inner chute are symmetrically provided with second arc-shaped baffles with outer surfaces protruding outwards.
Furthermore, a clamping column is arranged between the first arc-shaped baffle and the second arc-shaped baffle.
Further, the inner surface of the first arc-shaped baffle plate is provided with a first arc-shaped concave surface positioned at the lower part and a second arc-shaped concave surface positioned at the upper part, and a first convex part used for blocking the clamping column is formed between the first arc-shaped concave surface and the second arc-shaped concave surface.
Furthermore, the outer surface of the second arc-shaped baffle plate is provided with an arc-shaped convex surface positioned at the lower part and a third arc-shaped concave surface positioned at the upper part, and a second convex part used for blocking the clamping column is formed between the arc-shaped convex surface and the third arc-shaped concave surface.
Further, the outer surface of the upper door panel is provided with a door handle.
Furthermore, the lower end of the inner plate is provided with a pull ring.
Furthermore, the upper end of the lower door plate is provided with a carriage lock catch.
Furthermore, the driving mechanism comprises a first driving wheel, a second driving wheel, a swinging rod and a driving strip;
the first driving wheel is fixedly sleeved on the axis of the roller; the upper part of the swing rod is rotatably connected with the carriage body, and the lower part of the swing rod extends downwards to the front end of a rear wheel of the carriage body; the second driving wheel is rotatably connected with the lower part of the swinging rod; one end of the transmission strip is sleeved on the first transmission wheel, and the other end of the transmission strip is sleeved on the second transmission wheel; when the swinging rod swings downwards, the second driving wheel is abutted against the rear wheel of the carriage body.
Furthermore, the swinging rod is connected with an auxiliary supporting rod.
Further, the auxiliary supporting rod comprises a first supporting rod and a second supporting rod; one end of the first supporting rod is rotatably connected with the carriage body, the other end of the first supporting rod is rotatably connected with one end of the second supporting rod, and the other end of the second supporting rod is rotatably connected with the swinging rod.
Furthermore, when the swinging rod swings downwards to enable the second driving wheel to abut against the rear wheel of the carriage body, the included angle between the first supporting rod and the second supporting rod is 180 degrees.
Furthermore, when the swinging rod swings downwards to enable the second driving wheel to abut against the rear wheel of the carriage body, the included angle between the second supporting rod and the swinging rod is 90 degrees.
Furthermore, the second driving wheel is rotatably connected with the lower part of the swinging rod through a rotating shaft.
Furthermore, one end of the rotating shaft is fixedly connected with an inner ring of a third bearing, and the other end of the rotating shaft is fixedly connected with a second driving wheel; and the outer ring of the third bearing is fixedly sleeved on the swinging rod.
Further, the first driving wheel is a first belt pulley.
Further, the second transmission wheel is a second belt pulley.
Further, the transmission strip is a belt.
The invention has the advantages that:
1. the roller chains are staggered at the front end and the rear end of each roller axis, and one roller chain is only used for driving the two adjacent roller axes to transmit, so that the loosening condition can be effectively prevented in the using process. In addition, because the transmission environment between the axes of the rollers is severe, if gears and the like are adopted, the gears are easy to wear and difficult to modify, and the chain wheels are adopted, so that the problems can be effectively solved; meanwhile, the force transmission acting on the shaft during chain transmission is small, so that the chain transmission device is suitable for conveying heavy goods.
2. Through the mode that sets up of door about adopting for at the in-process that specifically carries out the unloading, can open down the door plant and unload, go up the door plant simultaneously and can block the goods of top, thereby avoid the goods directly to drop.
3. The express delivery goods transported on the vehicle are unloaded in the section without providing extra power.
Drawings
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of an auxiliary unloading device for express delivery according to the invention.
Figure 2 is a front view of an express delivery aid discharge device of the present invention.
Fig. 3 is a rear view of an auxiliary unloading device for express delivery of the invention.
Fig. 4 is a top view of an auxiliary express unloading device of the invention.
Fig. 5 is a schematic view of the structure of the drum axis in the present invention.
Fig. 6 is a schematic view of the structure of the first key (second key) used in the present invention.
Fig. 7 is a sectional view of the first end cap (second end cap) in the present invention.
Fig. 8 is a schematic structural view of the front end stent (rear end stent) in the present invention.
Fig. 9 is a cross-sectional view of a push rod cover of the present invention.
Fig. 10 is a schematic structural view of the rear compartment door opened to place the stretching support mechanism in a stretched state according to the present invention.
Fig. 11 is a schematic view of the rear compartment door closed and the tension support mechanism in a compressed state in accordance with the present invention.
Fig. 12 is a schematic structural view of an inner panel in the present invention.
Fig. 13 is a schematic structural view of the outer chute of the present invention.
Fig. 14 is a schematic structural view of the inner chute of the present invention.
FIG. 15 is a sectional view of the sliding connection between the outer and inner chutes of the present invention.
Fig. 16 is a schematic view showing a state in which the drive mechanism of the present invention is transmitted against the rear wheels of the vehicle body.
Fig. 17 is a schematic view showing a state where the drive mechanism is disengaged from the rear wheels of the vehicle body in the present invention.
Fig. 18 is a schematic view of the connection between the second transmission wheel and the oscillating lever in the present invention.
Description of reference numerals:
1-a carriage body, 11-a rear wheel, 2-a rear carriage door, 21-an upper door panel, 211-a door handle, 22-a lower door panel, 221-an outer sliding groove, 222-a first arc baffle, 2221-a first arc concave surface, 2222-a second arc concave surface, 2223-a first convex portion, 223-a carriage lock catch, 23-a stretching support mechanism, 231-a push-pull inner rod, 232-a push-pull rod sleeve, 2321-a splicing cavity, 233-a spring, 24-an inner plate, 241-an inner sliding groove, 242-a second arc baffle, 2421-an arc convex surface, 2422-a third arc concave surface, 2423-a second convex portion, 25-a clamping column, 246-a pull ring, 3-a cargo transmission mechanism, 31-a roller axis, 310-a rubber casing, 311-a first chain wheel, 312-second sprocket, 313-first roller chain, 314-second roller chain, 315-first step, 316-second step, 317-third step, 3171-first keyway, 3172-first key, 318-fourth step, 3181-third keyway, 3182-second key, 3191-first end cap, 3192-first bearing housing, 3193-second end cap, 3194-second bearing housing, 32-first bearing, 33-second bearing, 4-drive mechanism, 41-first drive wheel, 42-second drive wheel, 421-rotation shaft, 43-sway bar, 44-drive bar, 45-auxiliary support bar, 451-first support bar, 452-second support bar, 46-third bearing, 51-bracket of front end, 52-bracket at the rear end.
Detailed Description
The first embodiment is as follows:
referring to fig. 1 to 8, the auxiliary unloading device for express delivery of the present invention includes a carriage body 1 having a rear carriage door 2, a cargo conveying mechanism 3 disposed at the bottom of the carriage body 1, and a driving mechanism 4 for driving the cargo conveying mechanism 3 to convey; the goods transmission mechanism 3 comprises more than two roller axes 31 which are rotatably arranged at the bottom in the carriage body 1;
besides the first roller axis 31, the front end of each roller axis 31 is provided with a first chain wheel 311; the rear end of each roller axis 31 except the last roller axis 31 is provided with a second chain wheel 312; the first chain wheels 311 of the roller axes 31 are grouped in pairs, and are connected with the first chain wheels 311 of the same group through a first roller chain 313; the second sprockets 312 of the roller axes 31 are grouped two by two, and the second sprockets 312 of the same group are coupled by a second roller chain 314. In operation, one of the roller axes 31 is driven to rotate by the driving mechanism 4, the first chain wheel 311 on the roller axis 31 is driven by the first roller chain 313 to link with the adjacent roller axis 31, or the second chain wheel 312 on the roller axis 31 is driven by the second roller chain 314 to link with the adjacent roller axis 31, and the transmission of the goods is realized.
The invention adopts the technical scheme that a first chain wheel 311 is arranged at the front end of a roller axis 31, a second chain wheel 312 is arranged at the rear end of the roller axis, the first chain wheels 311 are connected in pairs into one group through a first roller chain 313, and the second chain wheels 312 are connected in pairs into one group through a second roller chain 314; the roller chains are staggered at the front end and the rear end of each roller axis 31, and one roller chain is only used for driving the two adjacent roller axes 31 to transmit, so that the loosening condition can be effectively prevented in the using process. In addition, because the transmission environment between the axes 31 of the rollers is severe, if gears and the like are adopted, the gears are easy to wear and difficult to modify, and the chain wheels are adopted, the problems can be effectively solved; meanwhile, the force transmission acting on the shaft during chain transmission is small, so that the chain transmission device is suitable for conveying heavy goods.
In the present invention, the device further comprises brackets 51 and 52 fixedly arranged at two sides of the bottom in the carriage body 1, and the roller axis 31 is rotatably pivoted on the brackets 51 and 52 at two sides. The brackets 51 and 52 are arranged on the two sides of the bottom in the carriage body 1, so that on one hand, the damage to the original structure of the carriage body 1 can be reduced, and on the other hand, the installation difficulty can be reduced.
In the present invention, in order to make the roller axis 31 roll at a low speed and be suitable for the delivery of express goods, the front end of the roller axis 31 is rotatably connected to the front bracket 5 through the first bearing 32. Because the device of the invention is suitable for conveying heavy objects, and the heavy object conveying has higher requirements on hardness, strength and product abrasion resistance, the first bearing 32 adopts a deep groove ball bearing.
In the present invention, in order to enable the drum axis 31 to be in a low-speed rolling state for being suitable for conveying express goods, the rear end portion of the drum axis 31 is rotatably connected with the rear bracket 5 through the second bearing 33. Because the device of the invention is suitable for conveying heavy objects, and the heavy object conveying has higher requirements on hardness, strength and product abrasion resistance, the second bearing 33 adopts a deep groove ball bearing.
In the present invention, in order to realize the fixed connection between the first bearing 32 and the drum axis 31, a first step 315 is disposed at the front end of the drum axis 31, and the inner ring of the first bearing 32 is sleeved on the first step 315.
In the present invention, in order to fixedly connect the front bracket 51 and the first bearing 32, a first bearing hole (not shown) is formed in the front bracket 51, and an outer ring of the first bearing 32 is fixedly fitted in the first bearing hole.
In the present invention, in order to realize the fixed connection between the second bearing 33 and the drum axis 31, the rear end of the drum axis 31 is provided with a second step 316, and the inner ring of the second bearing 33 is sleeved on the second step 316.
In the present invention, in order to fixedly connect the rear bracket 52 and the second bearing 33, a second bearing hole (not shown) is provided in the rear bracket 52, and an outer ring of the second bearing 33 is fixed to the second bearing hole.
In the present invention, in order to realize the fixed connection between the first chain wheel 311 and the drum axis 31, a third step 317 adjacent to the first step 315 is disposed at the front end of the drum axis 31, and the first chain wheel 311 is sleeved on the third step 317.
In the present invention, in order to better clamp the inner race of the first bearing 32, the radius of the third step 317 is larger than that of the first step 315.
In the present invention, the radius of the drum axis 31 is larger than the radius of the third step 317, so as to support the end of the first sprocket 311 and avoid the axial shift of the first sprocket 311.
In the present invention, a first key groove 3171 is formed on an outer surface of the third step 317, a second key groove (not shown) matching the first key groove 3171 is formed on an inner wall of the first sprocket 311, and the third step 317 and the first sprocket 311 are coupled together by a first key 3172. By providing the first key 3172 between the third step 317 and the first sprocket 311, it is possible to ensure that the first sprocket 311 and the third step 317 are more firmly coupled together.
In the present invention, in order to ensure the connection strength, the first key 3172 is a flat key.
In the present invention, in order to realize the fixed connection between the second sprocket 312 and the drum axis 31, a fourth step 318 adjacent to the second step 316 is disposed at the rear end of the drum axis 31, and the second sprocket 312 is sleeved on the fourth step 318.
In the present invention, the radius of the fourth step 318 is larger than that of the second step 316 in order to better grip the inner race of the second bearing 33.
In the present invention, the radius of the roller axis 31 is larger than the radius of the fourth step 318, so as to support the end of the second sprocket 312 and prevent the second sprocket 312 from being axially shifted.
In the present invention, the outer surface of the fourth step 318 is provided with a third key groove 3181, the inner wall of the second sprocket 312 is provided with a fourth key groove (not shown) matching with the third key groove 3181, and the fourth step 318 and the second sprocket 312 are coupled together by a second key 3182. By providing second key 3182 between fourth step 318 and second sprocket 312, second sprocket 312 and fourth step 318 can be more securely bonded together.
In the present invention, in order to ensure the connection strength, the second key 3182 is a flat key.
In the present invention, a first end cap 3191 is disposed on the front end surface of the drum axis 31, and the first end cap 3191 is fixedly disposed on the outer surface of the front bracket 51. Since the first bearing 32 is provided at the front end of the drum axis 31, the first end cap 3191 is provided on the end surface of the drum axis 31 for the purpose of dust prevention and the improvement of the service life.
In the present invention, in order to ensure that the first bearing 32 does not swing and wander back and forth, the inner surface of the first end cover 3191 is provided with a first bearing housing 3192 which abuts against the outer ring of the first bearing 32.
In the present invention, a second end cap 3193 is disposed on the rear end surface of the drum axis 31, and the second end cap 3193 is fixedly disposed on the outer surface of the rear bracket 52. Since the second bearing 33 is provided at the rear end of the drum axis 31, a second end cap 3193 is provided at the end surface of the drum axis 31 for the purpose of dust prevention and the improvement of the service life.
In the present invention, a second bearing housing 3194 is disposed on the inner surface of the second end cap 3193 for supporting the outer ring of the second bearing 33.
In the present invention, the middle of the drum axis 31 has a rubber jacket 310. The purpose of the rubber casing 310 is to: on one hand, the roller axis 31 can be protected; on the other hand, the surface of the roller axis 31 is smooth, so that the roller axis is not beneficial to the transmission of goods, and after the rubber jacket 310 is arranged, the friction force between the rubber jacket 310 and the goods can be increased, and the aim of slow conveying is fulfilled.
In the present invention, in order to stably transfer the goods, the drum axes 31 are equally spaced between the side frames 51 and 52.
In the invention, in order to prevent goods from falling from a gap between two roller axes 31, the distance between two adjacent roller axes 31 is 8-12 mm.
In the invention, in order to reduce the cost on the basis of achieving better anti-falling performance, the distance between the axes 31 of the two adjacent rollers is 10 mm.
In the invention, in order to ensure enough bearing capacity to support the goods, the diameter of the middle part of the axis 31 of the roller is 70-100 mm.
In the present invention, the diameter of the middle of the drum axis 31 is 85mm for cost reasons.
The second embodiment is as follows:
referring to fig. 1 to 15, a different embodiment of an auxiliary unloading device for express delivery according to the present invention is that, in the second embodiment, the rear car door 2 includes an upper door panel 21 and a lower door panel 22, the top of the upper door panel 21 is pivotally connected to the upper side of the unloading outlet of the car body 1, and the bottom of the lower door panel 22 is pivotally connected to the lower side of the unloading outlet of the car body 1. Through the mode that sets up of door about adopting for at the concrete in-process that unloads that carries on, can open down door plant 22 and unload, go up door plant 21 simultaneously and can block the goods of top, thereby avoid the goods directly to drop.
In the invention, in order to facilitate the delivery of the goods and avoid the situation that the goods with larger volume are blocked by the upper door panel 21 and cannot be delivered, the stretching support mechanism 23 is arranged between the upper door panel 21 and the wall surface of the discharge outlet, and when the rear compartment door 2 is opened, the upper door panel 21 is jacked upwards through the stretching support mechanism 23, so that an included angle is formed between the upper door panel 21 and the discharge outlet.
In the present invention, the stretching support mechanism 23 includes a push-pull inner rod 231, a push-pull rod sleeve 232 and a spring 233;
the lower end of the push-pull rod sleeve 232 is hinged to the wall surface of the unloading outlet, and an insertion cavity 2321 is formed inside the push-pull rod sleeve 232; the upper end of the push-pull inner rod 231 is hinged to the upper door plate 21, and the lower end of the push-pull inner rod is inserted into the inserting cavity 2321; one end of the spring 233 abuts against the inner bottom of the inserting cavity 2321, and the other end abuts against the lower end of the push-pull inner rod 231. When the rear compartment door 2 is opened, the push-pull inner rod 231 jacks the upper door panel 21 upwards under the action of the elastic force of the spring 233, so that an included angle is formed between the upper door panel 21 and the unloading outlet, and the upper door panel 21 is not completely opened, so that the cargo conveying is facilitated, and the cargo is prevented from directly falling from the upper side; when the rear compartment door 2 is closed, the push-pull inner rod 231 compresses the spring 233 and extends into the insertion cavity 2321.
In the present invention, in order to better close the rear compartment door 2, the length of the insertion cavity 2321 is greater than the length of the push-pull inner rod 231. In this way, the push-pull inner rod 231 can be completely inserted into the plug-in cavity 2321 when the rear compartment door 2 is closed.
In the present invention, an inner panel 24 is provided on an inner surface of the lower door panel 22 to slide up and down in order to allow the cargo to slowly land on the ground. In the unloading process, the inner plate 24 slides downwards to enable the lower door plate 22 to extend, so that the gradient is reduced, and express can slide down stably; when the cargo is not to be unloaded, the inner plate 24 is slid upward to be hidden inside the lower door panel 22.
In the present invention, in order to realize the sliding function, the outer sliding grooves 221 slidably connected with the inner plate 24 are symmetrically arranged on both sides of the inner surface of the lower door panel 22.
In the present invention, in order to realize the sliding function, the inner sliding grooves 241 slidably connected to the lower door panel 22 are symmetrically provided on both sides of the inner panel 24.
In the present invention, in order to combine the inner sliding groove 241 and the outer sliding groove 221, first arc-shaped baffles 222 with inward concave inner surfaces are symmetrically arranged on both sides of the outer sliding groove 221.
In the present invention, in order to combine the inner slide groove 241 and the outer slide groove 221, second arc-shaped baffles 242, the outer surfaces of which are convex outward, are symmetrically arranged on both sides of the inner slide groove 234.
In the present invention, in order to ensure that the inner sliding groove 241 and the outer sliding groove 221 are not separated, a clamping column 25 is disposed between the first arc-shaped baffle 222 and the second arc-shaped baffle 242.
In the present invention, the inner surface of the first arc-shaped baffle 222 has a first arc-shaped concave surface 2221 positioned at the lower portion and a second arc-shaped concave surface 2222 positioned at the upper portion, and a first convex portion 2223 for blocking the card cylinder 25 is formed between the first arc-shaped concave surface 2221 and the second arc-shaped concave surface 2222. The second arc-shaped concave surface 2222 is used for clamping the lower portion of the second arc-shaped baffle 242, and the first arc-shaped concave surface 2221 is used for providing a placement space for the clamping column 25.
In the present invention, the outer surface of the second arc-shaped baffle 242 has a lower arc-shaped convex surface 2421 and an upper third arc-shaped concave surface 2422, and a second protrusion 2423 for blocking the card column 25 is formed between the arc-shaped convex surface 2421 and the third arc-shaped concave surface 2422. The arc-shaped convex surface 2421 is used for being clamped on the second arc-shaped concave surface 2222, and the clamping column 25 is arranged between the third arc-shaped concave surface 2422 and the first arc-shaped concave surface 2221.
In the present invention, the outer surface of the upper door panel 21 is provided with a door handle 211 to facilitate the opening of the upper door panel 21.
In the present invention, the inner plate 24 has a pull ring 246 at the lower end thereof to facilitate the pulling of the inner plate 24 for sliding up and down.
In the present invention, the upper end of the lower door panel 22 is provided with a car lock 223 to lock the rear car door 2.
The third concrete embodiment:
referring to fig. 1 to 18, in a second embodiment of the express delivery auxiliary unloading device of the present invention, different from the second embodiment, in the third embodiment, the driving mechanism 4 includes a first driving wheel 41, a second driving wheel 42, a swinging rod 43 and a driving strip 44;
the first driving wheel 41 is fixedly sleeved on the roller axis 31, and in specific implementation, the first driving wheel 41 can be fixedly sleeved on the last roller axis 31; the upper part of the swing rod 43 is rotatably connected with the carriage body 1, and the lower part of the swing rod extends downwards to the front end of the rear wheel 11 of the carriage body 1; the second transmission wheel 42 is rotatably connected with the lower part of the swinging rod 43; one end of the transmission strip 44 is sleeved on the first transmission wheel 41, and the other end is sleeved on the second transmission wheel 42; when the swing rod 43 is swung downwards, the second transmission wheel 42 is abutted against the rear wheel 11 of the carriage body 1.
When the truck is used specifically, during unloading, the swinging rod 43 needs to swing downwards to enable the second driving wheel 42 to abut against the rear wheel 11 of the carriage body 1, so that the rotation of the rear wheel 11 drives the cargo conveying mechanism 3 to carry out transmission when the truck travels, and therefore unloading is achieved. The invention is designed to aim at: in order to realize that express goods transported on the vehicle are unloaded in the section of road by means of inertia of 1.5 times of the length of the vehicle in the parking process, and no additional power needs to be provided. When the unloading is not needed, the swinging rod 43 swings upwards to make the second driving wheel 42 leave the rear wheel 11, so as to avoid influencing the normal running of the vehicle.
In the present invention, in order to support the swing lever 43 more effectively, the swing lever 43 is connected to an auxiliary support rod 45.
In the present invention, the auxiliary supporting bar 45 includes a first supporting bar 451 and a second supporting bar 452; one end of the first support bar 451 is rotatably connected to the car body 1, the other end of the first support bar 451 is rotatably connected to one end of the second support bar 452, and the other end of the second support bar 452 is rotatably connected to the swing lever 43. In specific use, the first supporting rod 451 and the second supporting rod 452 can be straightened to form an included angle of 180 degrees in a rotating mode, and the included angle formed between the first supporting rod 451 and the second supporting rod 452 can also be smaller than 180 degrees.
In the present invention, in order to achieve a better supporting effect, when the swing lever 43 is swung downward to make the second transmission wheel 42 abut against the rear wheel 11 of the carriage body 1, an included angle between the first supporting rod 451 and the second supporting rod 452 is 180 °.
In the present invention, in order to realize a firmer support, when the swing lever 43 is swung downward to make the second transmission wheel 42 abut against the rear wheel 11 of the carriage body 1, the included angle between the second support lever 452 and the swing lever 43 is 90 °.
In the present invention, in order to realize the rotation of the second transmission wheel 42, said second transmission wheel 42 is rotatably connected with the lower part of the swinging rod 43 through the rotating shaft 421.
In the invention, in order to avoid the second driving wheel 42 from shaking, the second driving wheel 42 needs to be fixedly connected with the rotating shaft 421, so in order to realize the rotation of the rotating shaft 421, one end of the rotating shaft 421 is fixedly connected with the inner ring of the third bearing 46, and the other end is fixedly connected with the second driving wheel 42; the outer ring of the third bearing 46 is fixedly sleeved on the swing rod 43.
In the present invention, in order to avoid loosening of the driving belt 44, the first driving wheel 41 is a first pulley.
In the present invention, the second transmission wheel 42 is a second pulley to avoid loosening of the transmission strip 44.
In the present invention, the drive belt 44 is a belt. The belt and the belt pulley are connected in a matched mode, so that the loosening condition can be avoided, and the power required to be provided is small, so that the belt transmission device is more suitable for belt transmission compared with a chain wheel transmission mode.
Although specific embodiments of the invention have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the appended claims.
Claims (10)
1. An express auxiliary unloading device comprises a carriage body with a rear carriage door, a cargo transmission mechanism arranged at the bottom in the carriage body and a driving mechanism for driving the cargo transmission mechanism to convey; the method is characterized in that: the goods transmission mechanism comprises more than two roller axes which are rotatably arranged at the bottom in the carriage body;
except the first roller axis, the front end of each roller axis is provided with a first chain wheel; except the last roller axis, the rear end of each roller axis is provided with a second chain wheel; the first chain wheels of the roller axis are grouped in pairs, and are connected with the first chain wheels of the same group through a first roller chain; the second chain wheels of the roller axes are grouped in pairs, and are connected with the second chain wheels of the same group through a second roller chain.
2. An auxiliary discharge device for express delivery as claimed in claim 1, wherein: the roller is characterized by further comprising supports fixedly arranged on two sides of the bottom in the carriage body, the front end of the axis of the roller is rotatably connected with the supports on the front side through first bearings, and the rear end of the axis of the roller is rotatably connected with the supports on the rear side through second bearings.
3. An auxiliary discharge device for express delivery as claimed in claim 2, wherein: the front end part of the axis of the roller is provided with a first step, and the inner ring of the first bearing is sleeved on the first step; the front side of the bracket is provided with a first bearing hole, and the outer ring of the first bearing is fixedly sleeved on the first bearing hole.
4. An auxiliary discharge device for express delivery as claimed in claim 3, wherein: a second step is arranged at the rear end part of the axis of the roller, and the inner ring of the second bearing is sleeved on the second step; and a second bearing hole is formed in the bracket at the rear side, and an outer ring of the second bearing is fixedly sleeved on the second bearing hole.
5. An auxiliary discharge device for express delivery as claimed in claim 4, wherein: the front end of the axis of the roller is provided with a third step adjacent to the first step, and the first chain wheel is sleeved on the third step; the radius of the third step is larger than that of the first step; the radius of the drum axis is greater than the radius of the third step.
6. An auxiliary discharge device for express delivery as claimed in claim 5, wherein: a fourth step adjacent to the second step is arranged at the rear end of the axis of the roller, and the second chain wheel is sleeved on the fourth step; the radius of the fourth step is larger than that of the second step; the radius of the drum axis is larger than that of the fourth step.
7. An auxiliary unloading device for express delivery as claimed in any one of claims 1 to 6, wherein: the rear carriage door comprises an upper door plate and a lower door plate, the top of the upper door plate is rotatably pivoted above the discharge outlet of the carriage body, and the bottom of the lower door plate is rotatably pivoted below the discharge outlet of the carriage body; a stretching support mechanism is arranged between the upper door plate and the wall surface of the unloading outlet, and the upper door plate is jacked upwards through the stretching support mechanism when the rear carriage door is opened, so that an included angle is formed between the upper door plate and the unloading outlet;
the stretching support mechanism comprises a push-pull inner rod, a push-pull rod sleeve and a spring; the lower end of the push-pull rod sleeve is hinged to the wall surface of the unloading outlet, and an inserting cavity is formed in the push-pull rod sleeve; the upper end of the push-pull inner rod is hinged to the upper door plate, and the lower end of the push-pull inner rod is inserted into the inserting cavity; one end of the spring is propped against the inner bottom of the inserting cavity, and the other end of the spring props against the lower end of the push-pull inner rod.
8. An auxiliary discharge device for express delivery as claimed in claim 7, wherein: an inner plate which slides up and down is arranged on the inner surface of the lower door plate; the inner surface bilateral symmetry of door plant down is equipped with the outer spout with inner panel sliding connection, the bilateral symmetry of inner panel is equipped with the interior spout with door plant sliding connection down.
9. An auxiliary discharge device for express delivery as claimed in claim 8, wherein: the driving mechanism comprises a first driving wheel, a second driving wheel, a swinging rod and a driving strip;
the first driving wheel is fixedly sleeved on the axis of the roller; the upper part of the swing rod is rotatably connected with the carriage body, and the lower part of the swing rod extends downwards to the front end of a rear wheel of the carriage body; the second driving wheel is rotatably connected with the lower part of the swinging rod; one end of the transmission strip is sleeved on the first transmission wheel, and the other end of the transmission strip is sleeved on the second transmission wheel; when the swinging rod swings downwards, the second driving wheel is abutted against the rear wheel of the carriage body.
10. An auxiliary discharge device for express delivery of claim 9, wherein: the swing rod is connected with an auxiliary supporting rod;
the auxiliary supporting rod comprises a first supporting rod and a second supporting rod; one end of the first supporting rod is rotatably connected with the carriage body, the other end of the first supporting rod is rotatably connected with one end of the second supporting rod, and the other end of the second supporting rod is rotatably connected with the swinging rod.
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| CN202010598128.8A CN111717100B (en) | 2020-06-28 | 2020-06-28 | Auxiliary unloading device for express delivery |
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| CN202010598128.8A CN111717100B (en) | 2020-06-28 | 2020-06-28 | Auxiliary unloading device for express delivery |
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| CN111717100B CN111717100B (en) | 2022-05-03 |
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| CN112590641A (en) * | 2020-12-23 | 2021-04-02 | 上海海洋大学 | Commodity circulation vehicle for transporting goods |
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| CN111717100B (en) | 2022-05-03 |
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