Unpowered fruit and vegetable conveying device

Abstract

The invention relates to the technical field of fruit and vegetable conveying equipment, and provides an unpowered fruit and vegetable conveying device which comprises a conveying pipe, and the conveying pipe comprises a first straight-through section, a first bent angle section, an inclined straight-through section, a second bent angle section and a second straight-through section; buffer deceleration nets are arranged at the inlet end of the first bent angle section, the inlet end of the second bent angle section and the outlet end of the second straight-through section, each buffer deceleration net comprises a buffer collection section, a deceleration section and a discharging section, the diameter of each buffer collection section is gradually reduced in the fruit and vegetable moving direction, and the diameter of each discharging section is gradually increased in the fruit and vegetable moving direction. The diameter of the inlet end of the buffering collecting section and the diameter of the outlet end of the discharging section are both larger than the diameter of the speed reducing section. According to the unpowered fruit and vegetable conveying device provided by the invention, fruits and vegetables in the conveying pipe can be buffered and decelerated by utilizing each stage of buffer deceleration net so as to prevent the fruits and vegetables from being damaged, and the fruits and vegetables are conveyed to set positions by virtue of self gravity; the defects that an existing fruit and vegetable conveying device is complex in structure, and damage-reducing conveying of fruits and vegetables cannot be achieved in an unpowered scene are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of fruit and vegetable conveying equipment, and in particular to a non-powered fruit and vegetable conveying device. Background Art

[0002] Fruit and vegetable conveying devices can quickly and continuously transport fruits or vegetables to designated locations, avoiding the tediousness and inefficiency of manual handling, helping to improve agricultural production efficiency and reduce labor intensity. With the continuous increase in labor costs, mechanized transportation of fruits and vegetables is increasingly used in the fields of fruit and vegetable harvesting, storage and processing. However, in the process of mechanized transportation of fruits and vegetables, the problem of collision between fruits and vegetables and between fruits and vegetables and conveying devices still exists, resulting in collision damage to fruits and vegetables. Especially when transporting fruits and vegetables from high places to low places, due to the increase in gravitational potential energy, the collision speed of fruits and vegetables is accelerated, thereby increasing the risk of collision damage and limiting the quality and efficiency of fruit and vegetable transportation operations.

[0003] At present, in order to reduce collision damage during fruit and vegetable transportation, fruit and vegetable conveying devices usually adopt several methods, such as mechanical gripping, conveyor belt conveying and pneumatic conveying. Although existing conveying devices have achieved some results in reducing collision damage, they still face problems such as complex actuators, poor layout flexibility, high cost of use, and cannot achieve loss-reducing transportation of fruits and vegetables in unpowered scenarios. Summary of the invention

[0004] The present invention provides a non-powered fruit and vegetable conveying device, which is used to solve the defects of the existing fruit and vegetable conveying device that the structure is complicated and the loss-reducing conveying of fruits and vegetables cannot be achieved in a non-powered scenario.

[0005] The invention provides a non-powered fruit and vegetable conveying device, comprising: a conveying pipe, wherein the conveying pipe comprises a first straight section, a first angle section, an oblique straight section, a second angle section and a second straight section connected in sequence.

[0006] The inlet end of the first bend section, the inlet end of the second bend section and the outlet end of the second straight section are all provided with a buffer deceleration net, and the buffer deceleration net includes a buffer collection section, a deceleration section and a discharge section connected in sequence. Along the moving direction of the fruits and vegetables, the diameter of the buffer collection section gradually decreases, and the diameter of the discharge section gradually increases. The buffer collection section and the discharge section are both connected to the inner wall of the conveying pipe, and the inlet end diameter of the buffer collection section and the outlet end diameter of the discharge section are both larger than the diameter of the deceleration section.

[0007] According to the non-powered fruit and vegetable conveying device provided by the present invention, the discharge section is provided with a direction adjustment mechanism, the direction adjustment mechanism is used to adjust the orientation of the discharge section, the direction adjustment mechanism includes a plurality of adjustment units arranged at intervals along the circumferential direction, the adjustment unit includes a threaded adjustment member, the threaded adjustment member is threadedly connected to the conveying pipe, and the end of the threaded adjustment member is connected to the discharge section.

[0008] According to the unpowered fruit and vegetable conveying device provided by the present invention, a first fixing ring is provided at the inlet end of the buffer collection section, and a second fixing ring is provided at the outlet end of the discharging section. The first fixing ring is connected to the inner wall of the conveying pipe, and the second fixing ring is connected to the end of the threaded adjustment member.

[0009] According to the non-powered fruit and vegetable conveying device provided by the present invention, the end of the threaded adjustment member is hingedly connected to the second fixed ring.

[0010] According to the non-powered fruit and vegetable conveying device provided by the present invention, the adjustment unit also includes an adjusting nut, one end of the threaded adjustment piece is passed through the conveying pipe and is threadedly connected to the adjusting nut, the conveying pipe is provided with a plurality of slide grooves corresponding to the threaded adjustment piece one by one along the generatrix direction, the threaded adjustment piece is slidably matched with the slide groove to adjust the axial position and direction of the outlet end of the discharging section.

[0011] According to the unpowered fruit and vegetable conveying device provided by the present invention, the outlet end of the first straight section is rotatably connected to the inlet end of the first angled section, the outlet end of the first angled section is rotatably connected to the inlet end of the oblique straight section, the outlet end of the oblique straight section is rotatably connected to the inlet end of the second angled section, and the outlet end of the second angled section is rotatably connected to the inlet end of the second straight section.

[0012] According to the unpowered fruit and vegetable conveying device provided by the present invention, the buffer deceleration net includes a plurality of first elastic wires and second elastic wires arranged in an alternating manner, the first elastic wires are arranged along the warp direction, the second elastic wires are arranged along the weft direction, and a fixing knot is provided at the intersection of the first elastic wires and the second elastic wires.

[0013] According to the non-powered fruit and vegetable conveying device provided by the present invention, the diameter of the inlet end of the buffer collection section is the same as the inner diameter of the conveying pipe.

[0014] According to the non-powered fruit and vegetable conveying device provided by the present invention, the inner wall of the conveying pipe is provided with a flexible buffer layer.

[0015] According to the unpowered fruit and vegetable conveying device provided by the present invention, a flexible coating layer is provided in the buffer deceleration net.

[0016] The non-powered fruit and vegetable conveying device provided by the present invention provides buffer deceleration nets at the inlet end of the first curved section, the inlet end of the second curved section, and the outlet end of the second straight section of the conveying pipe. The buffer deceleration nets at each level can be used to buffer and decelerate the fruits and vegetables in the conveying pipe to prevent damage to the fruits and vegetables, and the fruits and vegetables can be conveyed to the set position by their own gravity, thereby solving the defects of the existing fruit and vegetable conveying device that the structure is complex and the loss-reducing conveying of fruits and vegetables cannot be achieved in a non-powered scenario.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is one of the schematic diagrams of the unpowered fruit and vegetable conveying device provided in the embodiment of the present invention.

[0020] Figure 2 This is the second schematic diagram of the unpowered fruit and vegetable conveying device provided in the embodiment of the present invention.

[0021] Figure 3 It is a schematic diagram of a buffer deceleration net located in a corner section of a non-powered fruit and vegetable conveying device provided in an embodiment of the present invention.

[0022] Figure 4 It is a schematic diagram of a buffer deceleration net located in a straight-through section of a non-powered fruit and vegetable conveying device provided in an embodiment of the present invention.

[0023] Figure 5 It is a schematic diagram of the initial state of the buffer deceleration net in the unpowered fruit and vegetable conveying device provided by an embodiment of the present invention.

[0024] Figure 6 It is a schematic diagram of the installation of a buffer deceleration net in the unpowered fruit and vegetable conveying device provided by an embodiment of the present invention.

[0025] Figure 7 It is a top view of a buffer deceleration net in a non-powered fruit and vegetable conveying device provided in an embodiment of the present invention.

[0026] Figure 8 It is a schematic diagram of buffering fruits and vegetables by a buffering and decelerating net in the unpowered fruit and vegetable conveying device provided by an embodiment of the present invention.

[0027] Fig. 9 It is a schematic diagram of weaving a buffer deceleration net in a non-powered fruit and vegetable conveying device provided in an embodiment of the present invention.

[0028] Fig.10 It is a schematic diagram of a buffer deceleration net with a flexible covering layer in a non-powered fruit and vegetable conveying device provided in an embodiment of the present invention.

[0029] Reference numerals: 10. Conveying pipe; 110. First straight section; 120. First angled section; 130. Oblique straight section; 140. Second angled section; 150. Second straight section; 20. Buffering and decelerating net; 210. Buffering and collecting section; 220. Decelerating section; 230. Discharging section; 240. Direction adjusting mechanism; 241. Adjusting unit; 2411. Threaded adjusting member; 2412. Adjusting nut; 250. First fixing ring; 260. Second fixing ring; 270. First elastic line; 280. Second elastic line; 30. Flexible buffer layer; 40. Flexible covering layer. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0032] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0035] Combine the following Figures 1 to 10 The invention describes a non-powered fruit and vegetable conveying device.

[0036] See also Figures 1 to 4 As shown, the non-powered fruit and vegetable conveying device provided by the embodiment of the present invention includes: a conveying pipe 10, which includes a first straight section 110, a first angle section 120, an oblique straight section 130, a second angle section 140 and a second straight section 150 connected in sequence.

[0037] The inlet end of the first bend section 120, the inlet end of the second bend section 140 and the outlet end of the second straight section 150 are all provided with a buffer deceleration net 20, and the buffer deceleration net 20 includes a buffer collection section 210, a deceleration section 220 and a discharge section 230 which are connected in sequence. Along the moving direction of the fruits and vegetables, the diameter of the buffer collection section 210 gradually decreases, and the diameter of the discharge section 230 gradually increases. The buffer collection section 210 and the discharge section 230 are both connected to the inner wall of the conveying pipe 10, and the inlet end diameter of the buffer collection section 210 and the outlet end diameter of the discharge section 230 are both larger than the diameter of the deceleration section 220.

[0038] It should be noted that the above-mentioned “the first straight-through section 110, the first angle section 120, the oblique straight-through section 130, the second angle section 140 and the second straight-through section 150 connected in sequence” specifically means: the outlet end of the first straight-through section 110 is connected to the inlet end of the first angle section 120, the outlet end of the first angle section 120 is connected to the inlet end of the oblique straight-through section 130, the outlet end of the oblique straight-through section 130 is connected to the inlet end of the second angle section 140, and the outlet end of the second angle section 140 is connected to the inlet end of the second straight-through section 150.

[0039] The unpowered fruit and vegetable conveying device provided by the present invention provides buffer deceleration nets 20 at the inlet end of the first bend section 120 of the conveying pipe 10, the inlet end of the second bend section 140 and the outlet end of the second straight section 150. The buffer deceleration nets 20 at each level can be used to buffer and decelerate the fruits and vegetables in the conveying pipe 10 to prevent damage to the fruits and vegetables, and the fruits and vegetables can be conveyed to the set position by their own gravity, thereby solving the defects of the existing fruit and vegetable conveying device that the structure is complex and cannot achieve loss-reducing conveying of fruits and vegetables in an unpowered scenario.

[0040] Specifically, see Figures 5 to 8 As shown, after the fruits and vegetables enter the first straight section 110 of the conveying pipe 10, they will fall along the first straight section 110 under the action of gravity. When they reach the entrance end of the first curved section 120, the buffer deceleration net 20 can perform the first buffer deceleration on the fruits and vegetables. During this process, since the diameter of the buffer collection section 210 gradually decreases along the moving direction of the fruits and vegetables (similar to the inverted cone-shaped contraction structure), the buffer collection section 210 can receive the fruits and vegetables and absorb part of the kinetic energy, thereby reducing the falling speed of the fruits and vegetables. After the fruits and vegetables enter the deceleration section 220, due to the small diameter of the deceleration section 220, the diameter of the fruits and vegetables is larger than the diameter of the deceleration section 220 before deformation. Φ 1. The deceleration section 220 can undergo elastic deformation (see Figure 8 As shown in the figure, the surface of the fruit and vegetable is pressed and friction and reverse force are generated along the direction of motion. The combined force of the two forces decelerates the fruit and vegetable. In order to ensure that the fruit and vegetable are discharged smoothly from the deceleration section 220, the combined force of the reverse force must be smaller than the weight of the fruit and vegetable itself. After the fruit and vegetable enter the discharge section 230, the bottom diameter of the deformed discharge section 230 is Φ 3 is greater than the diameter of the fruit and vegetable, the deceleration effect of the bottom of the discharging section 230 on the fruit and vegetable is weakened, and the fruit and vegetable can smoothly enter the inclined straight section 130 under the action of their own gravity. After the first buffering and deceleration, the fruit and vegetable enter the inclined straight section 130 and continue to fall by their own gravity. When reaching the entrance end of the second corner section 140, the buffering and deceleration net 20 can perform a second buffering and deceleration on the fruit and vegetable. After the second buffering and deceleration, the fruit and vegetable enter the second straight section 150 and continue to fall by their own gravity. When reaching the exit end of the second straight section 150, the buffering and deceleration net 20 can perform a third buffering and deceleration on the fruit and vegetable and finally make the fruit and vegetable fall into the collecting device at a lower speed.

[0041] In the non-powered fruit and vegetable conveying device provided by the present invention, the lengths of the first straight section 110 and the second straight section 150, the bending radius and length of the first angle section 120 and the second angle section 140, and the inclination angle and length of the oblique straight section 130 can all be adjusted according to operational requirements to achieve adjustment of the conveying distance.

[0042] The number of the conveying pipe 10 is at least one, that is, the non-powered fruit and vegetable conveying device provided by the present invention can be a single conveying pipe 10 used independently, or can be a combination of multiple conveying pipes 10 connected end to end in sequence. When the non-powered fruit and vegetable conveying device includes multiple conveying pipes 10 connected end to end in sequence, the first straight section 110 and the second straight section 150 between the conveying pipes 10 connected end to end can be shared.

[0043] See also Figures 2 to 4 As shown, according to some embodiments of the present invention, the discharge section 230 is provided with a direction adjustment mechanism 240, which is used to adjust the orientation of the discharge section 230, and the direction adjustment mechanism 240 includes a plurality of adjustment units 241 arranged at intervals along the circumferential direction, and the adjustment unit 241 includes a threaded adjustment member 2411, and the threaded adjustment member 2411 is threadedly connected to the conveying pipe 10, and the end of the threaded adjustment member 2411 is connected to the discharge section 230.

[0044] By setting the direction adjustment mechanism 240, the direction of the discharge section 230 of the buffer deceleration net 20 can be adjusted to adapt to the current extension direction of the conveying pipe 10. When the fruits and vegetables are discharged from the discharge section 230 of the buffer deceleration net 20, the extension direction of the fruits and vegetables and the conveying pipe 10 can be kept consistent, thereby reducing the impact and friction between the fruits and vegetables and the inner wall of the conveying pipe 10 and reducing the risk of damage to the fruits and vegetables.

[0045] As an example, the direction adjustment mechanism 240 in this embodiment includes four adjustment units 241, which are evenly arranged along the circumferential direction. When adjusting, the threaded adjustment member 2411 of each adjustment unit 241 is rotated so that the end of the threaded adjustment member 2411 supports the discharge section 230, thereby changing the direction of the discharge section 230.

[0046] See also Figure 4 As shown, according to some embodiments of the present invention, a first fixing ring 250 is provided at the inlet end of the buffer collection section 210, and a second fixing ring 260 is provided at the outlet end of the discharge section 230. The first fixing ring 250 is connected to the inner wall of the conveying pipe 10, and the second fixing ring 260 is connected to the end of the threaded adjustment member 2411.

[0047] By setting a first fixing ring 250 at the inlet end of the buffer collection section 210 and setting a second fixing ring 260 at the outlet end of the discharge section 230, the first fixing ring 250 and the second fixing ring 260 can be used to respectively open the inlet end and the outlet end of the buffer deceleration net 20, so that the buffer deceleration net 20 forms a structural form of a buffer collection section 210, a deceleration section 220 and a discharge section 230 connected in sequence, and the first fixing ring 250 and the second fixing ring 260 can also serve as an intermediate connecting structure connected to the inner wall of the conveying pipe 10, so as to facilitate the installation and fixation of the buffer deceleration net 20.

[0048] It should be noted that the diameter of the first fixing ring 250 needs to be set according to the diameter of the inlet end of the buffer collection section 210, and similarly, the diameter of the second fixing ring 260 needs to be set according to the diameter of the outlet end of the discharge section 230. Different specifications of the buffer deceleration net 20 can select the first fixing ring 250 and the second fixing ring 260 of the corresponding specifications for use.

[0049] See also Figure 4 As shown, according to some embodiments of the present invention, the end of the threaded adjustment member 2411 is connected to the second fixing ring 260 by a ball joint.

[0050] By configuring the end of the threaded adjustment member 2411 and the second fixing ring 260 as a ball joint connection, one end of the threaded adjustment member 2411 can be rotated relative to the second fixing ring 260 through the ball joint structure, thereby preventing the threaded adjustment member 2411 from loosening or even falling off when the second fixing ring 260 is impacted by fruits and vegetables or external forces. For example, when fruits and vegetables collide with the second fixing ring 260, the ball joint connection position between the threaded adjustment member 2411 and the second fixing ring 260 can be adaptively rotated or displaced at a certain angle, thereby reducing the impact of the collision on the threaded adjustment member 2411 and the connecting parts, enhancing the stability and durability of the system, and thus improving the overall reliability and service life of the equipment.

[0051] Specifically, in this embodiment, a ball head is provided at the end of the threaded adjustment member 2411, and a ball groove is provided on the outer side wall of the second fixing ring 260, and the ball head cooperates with the ball groove.

[0052] See also Figure 1 , Figure 2 and Figure 4 As shown, according to some embodiments of the present invention, the adjustment unit 241 also includes an adjusting nut 2412, one end of the threaded adjustment member 2411 is passed through the conveying pipe 10 and is threadedly connected to the adjusting nut 2412, and the conveying pipe 10 is provided with a plurality of slide grooves corresponding to the threaded adjustment member 2411 along the busbar direction, and the threaded adjustment member 2411 is slidably matched with the slide groove to adjust the axial position and direction of the outlet end of the discharge section 230.

[0053] By setting a plurality of chute grooves corresponding to the threaded adjustment member 2411 along the generatrix direction of the conveying pipe 10, the threaded adjustment member 2411 can move along the corresponding chute grooves and drive the second fixing ring 260 and the outlet end of the discharge section 230 to move, thereby adjusting the outlet end position and angle of the buffer deceleration net 20 at the first angle section 120 and the second angle section 140. In addition, by setting the adjustment nut 2412, when the threaded adjustment member 2411 moves along the corresponding chute groove, the adjustment nut 2412 can adjust the position accordingly, and after the position of the threaded adjustment member 2411 is adjusted, the threaded adjustment member 2411 is matched with the thread thereof, thereby fixing the outlet end of the discharge section 230, without the need to open a screw hole on the conveying pipe 10.

[0054] According to some embodiments of the present invention, the outlet end of the first straight section 110 is rotatably connected to the inlet end of the first bend section 120, the outlet end of the first bend section 120 is rotatably connected to the inlet end of the oblique straight section 130, the outlet end of the oblique straight section 130 is rotatably connected to the inlet end of the second bend section 140, and the outlet end of the second bend section 140 is rotatably connected to the inlet end of the second straight section 150.

[0055] Through the above arrangement, the first straight section 110 and the first angle section 120, the first angle section 120 and the oblique straight section 130, the oblique straight section 130 and the second angle section 140, and the second angle section 140 and the second straight section 150 can all rotate relative to each other, thereby adjusting the conveying position of the conveying pipe 10.

[0056] See also Fig. 9 As shown, according to some embodiments of the present invention, the buffer deceleration net 20 includes a plurality of first elastic lines 270 and second elastic lines 280 that are staggered, the first elastic lines 270 are arranged along the warp direction, the second elastic lines 280 are arranged along the weft direction, and the intersection points of the first elastic lines 270 and the second elastic lines 280 are provided with fixed knots (not shown in the figure).

[0057] By configuring the buffering and deceleration net 20 to include multiple first elastic lines 270 and second elastic lines 280 that are staggered, and providing fixed knots at the intersections of the first elastic lines 270 and the second elastic lines 280, the buffering and deceleration effect on fruits and vegetables can be improved, and the intersections of the first elastic lines 270 and the second elastic lines 280 can be prevented from slipping.

[0058] Specifically, when fruits and vegetables enter the buffering and decelerating net 20, under the squeezing effect of the fruits and vegetables, the first elastic line 270 and the second elastic line 280 of the buffering and decelerating net 20 can be elastically deformed in the warp direction and the weft direction respectively, and a relatively uniform pressure is applied to different positions on the surface of the fruits and vegetables, thereby improving the effect of buffering and decelerating the fruits and vegetables. Since a fixing knot is provided at the intersection of the first elastic line 270 and the second elastic line 280, the intersection of the first elastic line 270 and the second elastic line 280 can always remain fixed during use, thereby preventing the buffering and decelerating net 20 from being deformed during long-term use.

[0059] As an example, see Figures 5 to 9 As shown, the spacing between adjacent first elastic lines 270 is d 1, the spacing between adjacent second elastic lines 280 is d 2. Before deformation, the top diameter of the buffer deceleration net 20 is Φ 1. The top diameter of the buffer deceleration net 20 after deformation is Φ 2. Bottom diameter is Φ 3. The middle diameter remains the same as before deformation. Φ 1. To meet the different needs of fruit and vegetable transportation, the top diameter of the buffer deceleration net 20 before deformation can be adjusted according to the needs. Φ 1. Distance between adjacent first elastic lines 270 d 1. The distance between adjacent second elastic lines is 280 d 2. Adjustment: The larger the diameter of the fruits and vegetables to be transported, the larger the top diameter of the buffer deceleration net 20 before deformation. Φ 1 is larger; the spacing between adjacent first elastic lines 270 d 1. The distance between adjacent second elastic lines is 280 d The smaller 2 is, the more obvious the buffering and deceleration effect of fruits and vegetables in the buffer net will be.

[0060] See also Figures 2 to 4 As shown, according to some embodiments of the present invention, the diameter of the inlet end of the buffer collection section 210 is the same as the inner diameter of the conveying pipe 10 .

[0061] By setting the inlet end diameter of the buffer collection section 210 to be the same as the inner diameter of the conveying tube 10, the fruits and vegetables can smoothly transition when entering the buffer collection section 210, reducing the friction and impact between the fruits and vegetables and the conveying tube 10, and avoiding obstruction or jamming of the fruits and vegetables due to diameter mismatch, thereby improving the conveying efficiency and reducing the risk of damage to the fruits and vegetables.

[0062] Specifically, in this embodiment, it is only necessary to set the diameter of the first fixing ring 250 to be the same as the inner diameter of the delivery pipe 10 .

[0063] See also Figure 3As shown, according to some embodiments of the present invention, the inner wall of the delivery tube 10 is provided with a flexible buffer layer 30 .

[0064] By providing a flexible buffer layer 30 on the inner wall of the conveying tube 10, the flexible buffer layer 30 can be used to protect the fruits and vegetables in the conveying tube 10. Specifically, the flexible buffer layer 30 can absorb the impact and friction of the fruits and vegetables during the conveying process, avoid direct contact between the fruits and vegetables and the inner wall of the conveying tube 10, and thus reduce the risk of damage to the fruits and vegetables. In addition, the flexible buffer layer 30 can not only provide additional protection for the fruits and vegetables, but also improve the smoothness and stability of the fruit and vegetable transportation, especially in the case of high-speed transportation or when the fruits and vegetables are relatively fragile, it can significantly reduce collision damage and improve the overall transportation efficiency and operation quality.

[0065] See also Fig.10 As shown, according to some embodiments of the present invention, a flexible covering layer 40 is provided inside the buffer deceleration net 20 .

[0066] By providing the flexible covering layer 40 in the buffer and deceleration net 20, the flexible covering layer 40 can be used to protect the fruits and vegetables, and is mainly used to protect the fruits and vegetables with fragile outer surfaces or those that are easily caught.

[0067] Specifically, the middle portion of the flexible covering layer 40 fits with the deceleration section 220, and the top and bottom of the flexible covering layer 40 are respectively bonded and fixed to the buffer collection section 210 and the discharge section 230, or are respectively connected to the first fixing ring 250 and the second fixing ring 260.

[0068] The following is an example of the conveying process of the non-powered fruit and vegetable conveying device provided by the present invention. In this example, apples are taken as an example of fruits and vegetables.

[0069] During the apple transportation process, the apple enters the first straight section 110 from the top and moves downward along the inside of the pipe under the action of gravity. After entering the first bend section 120, the apple first contacts the buffer deceleration net 20 at the inlet end of the first bend section 120. After a buffer deceleration by the buffer deceleration net 20 at the inlet end of the first bend section 120, the apple enters the oblique straight section 130, and then enters the second bend section 140 again. Under the action of the buffer deceleration net 20 at the inlet end of the second bend section 140, the apple is buffered and decelerated once, and then enters the second straight section 150. Under the action of the buffer deceleration net 20 at the outlet end of the straight section, the apple is buffered and decelerated for the third time, and finally the fruits and vegetables fall into the collection device at a lower speed. Except for the buffer deceleration nets 20, the apple can move under the protection of the flexible buffer layer 30 in the conveying pipe 10.

[0070] Specifically, when the buffer deceleration net 20 performs buffer deceleration, the apple first contacts the buffer collection section 210 of the buffer deceleration net 20, and the buffer collection section 210 absorbs part of the kinetic energy of the apple. Since the buffer collection section 210 is a reverse cone-shaped contraction structure, under the action of the buffer collection section 210, the apple moves downward along the side wall (or middle) of the buffer deceleration section 220 to the deceleration section 220. After entering the deceleration section 220, since the diameter of the apple is larger than the diameter of the middle part of the buffer deceleration net 20 before deformation, Φ 1. The elastic wires in the warp and weft directions of the deceleration section 220 are deformed, exerting pressure on the surface of the apple and generating friction and a reverse force along the direction of movement. The combined force of the two slows down the apple. In order to ensure that the apple is discharged smoothly from the deceleration section 220, the combined force of the reverse force must be less than the weight of the apple itself. After the apple enters the exit section, the bottom diameter of the buffer deceleration net 20 is deformed. Φ 3 is larger than the diameter of the apple, the deceleration effect of the outlet section on the apple is weakened, and the apple can slide out of the buffer deceleration net 20 along the tangential direction of the conveying pipe 10 through the direction adjustment mechanism 240.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A non-powered fruit and vegetable conveying device, characterized in that: include: A delivery pipe, the delivery pipe comprising a first straight section, a first angled section, an oblique straight section, a second angled section and a second straight section connected in sequence; The inlet end of the first bend section, the inlet end of the second bend section and the outlet end of the second straight section are all provided with a buffer deceleration net, and the buffer deceleration net includes a buffer collection section, a deceleration section and a discharge section connected in sequence. Along the moving direction of the fruits and vegetables, the diameter of the buffer collection section gradually decreases, and the diameter of the discharge section gradually increases. The buffer collection section and the discharge section are both connected to the inner wall of the conveying pipe, and the inlet end diameter of the buffer collection section and the outlet end diameter of the discharge section are both larger than the diameter of the deceleration section.

2. The unpowered fruit and vegetable conveying device according to claim 1, characterized in that: The discharging section is provided with a direction adjustment mechanism, which is used to adjust the orientation of the discharging section. The direction adjustment mechanism includes a plurality of adjustment units arranged at intervals along the circumferential direction. The adjustment unit includes a threaded adjustment piece, which is threadedly connected to the conveying pipe, and an end of the threaded adjustment piece is connected to the discharging section.

3. The unpowered fruit and vegetable conveying device according to claim 2, characterized in that: A first fixing ring is provided at the inlet end of the buffer collection section, and a second fixing ring is provided at the outlet end of the discharging section. The first fixing ring is connected to the inner wall of the conveying pipe, and the second fixing ring is connected to the end of the threaded adjusting member.

4. The unpowered fruit and vegetable conveying device according to claim 3 is characterized in that: The end of the threaded adjusting member is hingedly connected to the second fixed spherical ring.

5. The unpowered fruit and vegetable conveying device according to claim 2, characterized in that: The adjustment unit also includes an adjusting nut, one end of the threaded adjustment piece is passed through the conveying pipe and threadedly connected to the adjusting nut, the conveying pipe is provided with a plurality of slide grooves corresponding to the threaded adjustment piece along the busbar direction, the threaded adjustment piece is slidably matched with the slide groove to adjust the axial position and direction of the outlet end of the discharging section.

6. The unpowered fruit and vegetable conveying device according to any one of claims 1 to 5, characterized in that: The outlet end of the first straight-through section is rotationally connected to the inlet end of the first bend section, the outlet end of the first bend section is rotationally connected to the inlet end of the oblique straight-through section, the outlet end of the oblique straight-through section is rotationally connected to the inlet end of the second bend section, and the outlet end of the second bend section is rotationally connected to the inlet end of the second straight-through section.

7. The unpowered fruit and vegetable conveying device according to any one of claims 1 to 5, characterized in that: The buffer deceleration net includes a plurality of first elastic lines and second elastic lines arranged in an alternating manner, wherein the first elastic lines are arranged along the warp direction, and the second elastic lines are arranged along the weft direction, and a fixing knot is provided at the intersection of the first elastic lines and the second elastic lines.

8. The unpowered fruit and vegetable conveying device according to any one of claims 1 to 5, characterized in that: The inlet diameter of the buffer collection section is the same as the inner diameter of the conveying pipe.

9. The unpowered fruit and vegetable conveying device according to any one of claims 1 to 5, characterized in that: The inner wall of the delivery pipe is provided with a flexible buffer layer.

10. The unpowered fruit and vegetable conveying device according to any one of claims 1 to 5, characterized in that: A flexible covering layer is arranged inside the buffer deceleration net.

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