Charging tray storage and transportation device

Abstract

The utility model provides a charging tray storage and transportation device, which relates to the technical field of semiconductor device testing, and comprises a stock bin, a tray and a jacking mechanism positioned on the side of the stock bin, the jacking mechanism comprises a support, a lead screw, a transmission assembly, a driving assembly and a connecting base, the lead screw is rotationally connected with the support, the driving assembly is installed on the support and is in transmission connection with the lead screw through the transmission assembly, the connecting base is in threaded connection with the lead screw and is in sliding fit with the support in the extending direction of the lead screw, and the tray is connected with the connecting base and extends into the stock bin. The tray storage and transportation device has the advantages that layout of components below the stock bin cannot be affected, the jacking mechanism is easy to disassemble and maintain, transmission is more stable, maintenance cost is lower and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor device testing, in particular to a material tray storage and transportation device. Background Art

[0002] With the rapid development of science and technology, there are more and more products such as communication equipment and consumer electronics. Chips are one of the main components of such electronic products, and their quality is directly related to the quality of electronic products. After the chip is produced, it is usually necessary to test and sort the chip.

[0003] After testing and sorting, the chips will be divided into different categories and grades according to the results of sorting and testing, and stored in different trays. In order to improve production efficiency and reduce the number of times the trays are moved, when one tray is used up, another tray is stacked on top of the tray, and both trays are taken away together after they are used up, or two trays are transported at a time, and after one tray is used up, it is moved to the next tray for temporary storage, and when the other tray is used up, the two trays are stacked first and then moved away together. The current tray-taking and material-retrieving method is that the tray handling mechanism takes out the tray from the bottom silo, puts it into the middle tray, and then the tray supports the tray and lifts it to a fixed material-retrieving position for the robot to take the material to the subsequent process production; the material-discharging and tray-placing method is that the robot takes the material from the previous process and puts it into the tray, and then the tray descends to the tray placement position on the tray, and then is transported to the storage bin for storage by the tray handling mechanism. The robot has relatively high requirements for the position of the material, so there are certain requirements for the stability and accuracy of the tray lifting.

[0004] The existing pallet lifting mechanism is installed directly below the silo, and the pallet is driven by a screw motor, with two guide shafts on both sides for guidance. Therefore, in the prior art, the installation position of the pallet lifting mechanism will occupy a certain space below the rack, affecting the layout of the components below and making it inconvenient to disassemble and repair. In addition, the screw motor will generate a certain amount of noise when it is running, and since the screw motor and the pallet nut are rigidly connected, vibration is prone to occur at low speeds, increasing the wear between the two, affecting the transmission stability, and requiring regular maintenance and replacement of parts, with high maintenance costs. Utility Model Content

[0005] The utility model aims to provide a material tray storage and transportation device, which has the advantages of not affecting the layout of components below the silo, easy disassembly and maintenance of the jacking mechanism, more stable transmission, lower maintenance cost, etc.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a material tray storage and transportation device, including a material bin, a tray and a lifting mechanism located on the side of the material bin; the lifting mechanism includes a bracket, a screw rod, a transmission assembly, a drive assembly and a connecting seat, the screw rod is rotatably connected to the bracket, the drive assembly is installed on the bracket and is transmission-connected to the screw rod through the transmission assembly, the connecting seat is threadedly connected to the screw rod and slidably cooperates with the bracket along the extension direction of the screw rod, and the tray is connected to the connecting seat and extends into the material bin.

[0008] Furthermore, the driving assembly includes a mounting plate, a motor and a fastener, the mounting plate is adjustably connected to the bracket via the fastener, and the motor is fixedly mounted on the mounting plate and drivingly connected to the transmission assembly.

[0009] Further, one of the mounting plate and the bracket is provided with a first connection structure, and the other is provided with a second connection structure arranged opposite to the first connection structure;

[0010] The first connection structure and the second connection structure cooperate with the fasteners respectively, so that the mounting plate is adjustably connected to the bracket through the fasteners;

[0011] Furthermore, the transmission assembly includes a driving wheel, a belt and a driven wheel, the motor is drivingly connected to the driving wheel, the driven wheel is connected to the screw rod, and the driving wheel and the driven wheel are connected through the belt transmission.

[0012] Further, the bracket includes a first fixing frame, a guide rail and a second fixing frame;

[0013] The guide rail is mounted on the first fixing frame and its extension direction is parallel to the extension direction of the screw rod, and the guide rail is slidably matched with the connecting seat;

[0014] One end of the second fixing frame is connected to the first fixing frame, and the other end is installed with the driving assembly. The screw rod is rotatably connected to the second fixing frame and is located between the first fixing frame and the driving assembly.

[0015] Furthermore, the bottom end of the first fixing frame is connected to the bottom plate of the silo, and the bottom end of the screw rod is rotatably connected to the bottom plate of the silo.

[0016] Furthermore, the connecting seat includes a reinforcing rib, a first connecting block and a second connecting block connected to the first connecting block, the first connecting block is threadedly connected to the screw rod, the second connecting block is slidingly matched with the bracket, the tray is connected to the second connecting block and the reinforcing rib is connected between the tray and the second connecting block.

[0017] Furthermore, the silo includes a bottom plate, a side plate and a door body, the side plate is connected to the bottom plate, the door body is rotatably connected to the bottom plate, a storage space is formed between the side plate, the door body and the bottom plate, a side opening for the pallet to enter the storage space is formed between the side plate and the door body, and the lifting mechanism is arranged opposite to the side opening.

[0018] Furthermore, the side panel is provided with a first buckle and a limit piece, and the door body is rotatably connected with a second buckle, the second buckle is used to engage with the first buckle to limit the door body from turning outward relative to the side panel, and the end of the limit piece away from the side panel is used to abut against the side of the door body facing the storage space to limit the door body from turning inward relative to the side panel.

[0019] Furthermore, the first buckle and the limiting member are both connected to the side plate via a fixing block;

[0020] Among them, the position of the fixing block in the height direction of the side panel is adjustable, and / or the position of the first buckle relative to the fixing block is adjustable in a direction gradually away from the side panel, and / or the distance of one end of the limiting member away from the side panel relative to the side panel is adjustable.

[0021] The tray storage and transportation device provided by the utility model can produce the following beneficial effects:

[0022] 1. The lifting mechanism in the tray storage and transportation device provided by the utility model is arranged on the side of the silo, which saves the space under the silo, does not affect the layout of the components under the silo and is easy to disassemble and repair the lifting mechanism;

[0023] 2. The drive assembly and the transmission assembly are used to drive the screw to rotate, which solves the noise problem of the screw motor itself. In addition, since a transmission assembly is arranged between the drive assembly and the screw, the transmission assembly has a certain flexible buffering effect on the screw, reducing the hard impact between the connecting seat and the screw during movement, effectively alleviating the vibration phenomenon occurring at low speed, reducing the wear between the two, ensuring transmission stability, and lowering maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1A schematic diagram of a three-dimensional structure of a lifting mechanism, a tray and a bottom plate provided in an embodiment of the utility model when they cooperate;

[0026] Figure 2 A schematic diagram of the three-dimensional structure of a material tray storage and transportation device provided in an embodiment of the utility model;

[0027] Figure 3 A schematic diagram of a three-dimensional structure of a driving assembly provided by an embodiment of the utility model at a first viewing angle;

[0028] Figure 4 for Figure 2 A local enlarged schematic diagram of point A;

[0029] Figure 5 A schematic diagram of a three-dimensional structure of a driving assembly provided by an embodiment of the utility model at a second viewing angle;

[0030] Figure 6 for Figure 5 A partial enlarged schematic diagram of point B.

[0031] Icons: 1-silo; 11-bottom plate; 12-side plate; 121-first buckle; 122-limiting piece; 13-door body; 131-second buckle; 14-side opening; 15-fixed block; 16-in-place sensor; 17-third connecting block; 2-tray; 3-bracket; 31-first fixed frame; 32-guide rail; 33-second fixed frame; 331-first connecting hole; 4-screw rod; 5-transmission assembly; 51-driving wheel; 52-belt; 53-driven wheel; 6-driving assembly; 61-mounting plate; 611-second connecting hole; 62-motor; 63-fastener; 7-connecting seat; 71-reinforcement rib; 72-first connecting block; 73-second connecting block. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on 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.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0036] The first aspect of the present invention provides a tray storage and transportation device. Figure 1 and Figure 2 As shown, it includes a silo 1, a tray 2 and a lifting mechanism located on the side of the silo 1, the lifting mechanism includes a bracket 3, a screw rod 4, a transmission assembly 5, a drive assembly 6 and a connecting seat 7, the screw rod 4 is rotatably connected to the bracket 3, the drive assembly 6 is installed on the bracket 3 and is transmission-connected to the screw rod 4 through the transmission assembly 5, the connecting seat 7 is threadedly connected to the screw rod 4 and slidably cooperates with the bracket 3 along the extension direction of the screw rod 4, and the tray 2 is connected to the connecting seat 7 and extends into the silo 1.

[0037] When the above-mentioned material tray storage and transportation device is working, the tray 2 carries the material tray, and the driving assembly 6 drives the screw rod 4 to rotate through the transmission assembly 5. Since the connecting seat 7 is threadedly connected with the screw rod 4 and slides with the bracket 3 along the extension direction of the screw rod 4, the connecting seat 7 slides relative to the bracket 3 under the drive of the screw rod 4, thereby driving the tray 2 to rise and fall. Optionally, the position of the driving assembly 6 relative to the bracket 3 is adjustable. When the tension of the transmission assembly 5 is insufficient after long-term use, the position of the driving assembly 6 relative to the bracket 3 can be adjusted to increase the tension of the transmission assembly 5 to ensure transmission accuracy.

[0038] In the tray storage and transportation device provided in the above embodiment, the lifting mechanism is located on the side of the silo 1, which saves the space below the silo 1, does not affect the layout of components below the silo 1, and facilitates the disassembly and maintenance of the lifting mechanism.

[0039] Traditional screw motors usually use the motor to directly drive the screw to rotate, and the screw is connected to the load through a nut. When the motor rotates, the rotation of the screw causes the nut to move linearly along the screw, which causes a certain amount of noise in the operation of the screw motor itself. In addition, the traditional screw motor and nut are rigidly connected, which is prone to vibration at low speeds, increasing the wear between the screw and the nut, affecting the transmission stability, and requiring frequent maintenance and replacement of parts.

[0040] In the tray storage and transportation device provided by the above embodiment, the driving component 6 and the transmission component 5 cooperate to drive the screw rod 4 to rotate, which solves the noise problem of the screw motor itself. In addition, due to the existence of the transmission component 5, the transmission component 5 can play a certain flexible buffering role on the screw rod 4, reduce the hard impact between the connecting seat 7 and the screw rod 4 during movement, effectively alleviate the vibration phenomenon occurring at low speed, reduce the wear between the connecting seat 7 and the screw rod 4, ensure the transmission stability, and lower the maintenance cost.

[0041] In addition, in the tray storage and transportation device provided in the above embodiment, the position of the drive assembly 6 relative to the bracket 3 is adjustable, and the user can adjust the tension of the transmission assembly 5 according to the usage conditions, which is convenient for personnel maintenance.

[0042] In an optional embodiment, if Figure 1 and Figure 3 As shown, the driving assembly 6 includes a mounting plate 61 , a motor 62 and a fastener 63 . The mounting plate 61 is adjustably connected to the bracket 3 via the fastener 63 . The motor 62 is fixedly mounted on the mounting plate 61 and drivingly connected to the transmission assembly 5 .

[0043] The setting of the mounting plate 61 facilitates the installation of the motor 62, and the fastener 63 can realize the adjustable position of the mounting plate 61 relative to the bracket 3. Since the motor 62 is fixedly mounted on the mounting plate 61, a transmission assembly 5 is connected between the motor 62 and the screw rod 4 on the bracket 3. The movement of the mounting plate 61 relative to the bracket 3 can adjust the tension of the transmission assembly 5.

[0044] The fastener 63 may be a bolt or a pin, etc.

[0045] In an optional embodiment, one of the mounting plate 61 and the bracket 3 is provided with a first connecting structure, and the other is provided with a second connecting structure arranged opposite to the first connecting structure; the first connecting structure and the second connecting structure respectively cooperate with the fastener 63 so that the mounting plate 61 is adjustably connected to the bracket 3 through the fastener 63.

[0046] Among them, the first connection structure can be a connection hole, a connection groove, a guide protrusion, etc., and the second connection structure can also be a connection hole, a connection groove, a guide protrusion, etc.

[0047] In a preferred embodiment, both the first connection structure and the second connection structure adopt a hole structure, and the first connection structure is set to be the first connection hole 331, and the second connection structure is set to be the second connection hole 611. One of the mounting plate 61 and the bracket 3 is provided with a first connection hole 331, and the other is provided with a second connection hole 611 arranged opposite to the first connection hole 331, and at least one of the first connection hole 331 and the second connection hole 611 is a waist-shaped hole, so that the mounting position of the mounting plate 61 on the bracket 3 is adjustable; the fastener 63 passes through the first connection hole 331 and is connected to the second connection hole 611; the motor 62 is installed on the mounting plate 61, and the motor 62 is connected to the transmission assembly 5.

[0048] Taking the example in which a first connecting hole 331 is provided on the bracket 3, a second connecting hole 611 is provided on the mounting plate 61, and the first connecting hole 331 is a waist-shaped hole, and the second connecting hole 611 is a round hole, a specific description is given: when it is necessary to lock the position of the mounting plate 61 relative to the bracket 3, the fastener 63 is passed through the first connecting hole 331 and connected to the second connecting hole 611, and the position of the mounting plate 61 relative to the bracket 3 is locked by the fastener 63. When it is necessary to adjust the installation position of the mounting plate 61, the connection between the fastener 63 and the second connecting hole 611 can be canceled, and the mounting plate 61 can be moved to a suitable position along the length direction of the first connecting hole 331, and then the fastener 63 can be connected to the second connecting hole 611.

[0049] In a preferred embodiment, the motor 62 is a stepper motor, which is controlled to rotate according to an input signal and has the advantage of low noise.

[0050] In a preferred embodiment, the fastener 63 is a bolt, and the position of the mounting plate 61 can be adjusted by simply loosening the bolt.

[0051] It should be noted that any structure that can transmit the power of the driving assembly 6 to the screw rod 4 can be the transmission assembly 5 mentioned in the above embodiment. For example, the transmission assembly 5 can be a belt transmission assembly or a chain transmission assembly.

[0052] In an optional embodiment, the transmission assembly 5 includes a driving wheel 51, a belt 52 and a driven wheel 53, the motor 62 is drivingly connected to the driving wheel 51, the driven wheel 53 is connected to the screw rod 4, and the driving wheel 51 and the driven wheel 53 are connected by the belt 52.

[0053] When in use, the motor 62 drives the driving wheel 51 to rotate, and the driving wheel 51 drives the driven wheel 53 to rotate through the belt 52, thereby causing the screw rod 4 to rotate relative to the bracket 3.

[0054] In the above embodiment, the driving wheel 51, the belt 52 and the driven wheel 53 have a certain flexible buffering effect on the screw rod 4, thereby reducing the hard impact between the connecting seat 7 and the screw rod 4 during movement, effectively alleviating the vibration phenomenon occurring at low speed, ensuring the transmission stability, and lowering the maintenance cost.

[0055] When adjusting the position of the driving assembly 6 relative to the bracket 3 , the tension of the belt 52 can be adjusted, which facilitates the maintenance of the transmission assembly 5 .

[0056] In an optional embodiment, if Figure 1 As shown, the bracket 3 includes a first fixing frame 31, a guide rail 32 and a second fixing frame 33, wherein:

[0057] The guide rail 32 is mounted on the first fixing frame 31 and its extension direction is parallel to the extension direction of the screw rod 4. The guide rail 32 is slidably matched with the connecting seat 7 to guide the connecting seat 7 in the vertical direction.

[0058] One end of the second fixing frame 33 is connected to the top of the first fixing frame 31 , and the other end extends to the side of the first fixing frame 31 . The screw rod 4 is rotatably connected to the second fixing frame 33 , and the driving assembly 6 is installed on the second fixing frame 33 .

[0059] The bracket 3 adopts a split structure, which makes it easier to process the bracket 3.

[0060] Specifically, the first fixing frame 31 and the second fixing frame 33 may both be plate-shaped structures, and the second fixing frame 33 and the first fixing frame 31 are disposed perpendicular to each other.

[0061] In an optional embodiment, in order to make the structural layout of the device itself more reasonable, in the horizontal direction, the screw rod 4 is located between the first fixing frame 31 and the driving assembly 6 .

[0062] The above arrangement enables the drive assembly 6 to transmit the screw rod 4 through the transmission assembly 5 on one side of the screw rod 4, and the first fixing frame 31 guides the connecting seat 7 threadedly connected to the screw rod 4 on the other side of the screw rod 4, thereby avoiding interference between the drive assembly 6 and the first fixing frame 31.

[0063] In an optional embodiment, a waist-shaped first connecting hole 331 is formed on the second fixing frame 33 .

[0064] In an optional embodiment, if Figure 1 As shown, to facilitate the installation of the screw rod 4 and the first fixing frame 31, the bottom end of the first fixing frame 31 is fixedly connected to the bottom plate 11 of the silo 1, and the bottom end of the screw rod 4 is rotatably connected to the bottom plate 11 of the silo 1 through a bearing.

[0065] The above arrangement utilizes the original bottom plate 11 of the silo 1 to realize the installation of the first fixing frame 31 and the screw rod 4 without the need to additionally arrange other supporting structures.

[0066] In an optional embodiment, if Figure 1 As shown, the connecting seat 7 includes a reinforcing rib 71, a first connecting block 72 and a second connecting block 73 connected to the first connecting block 72. The first connecting block 72 is sleeved on the screw rod 4 and is threadedly connected to the screw rod 4. The second connecting block 73 is slidably matched with the bracket 3. The tray 2 is connected to the second connecting block 73 and a reinforcing rib 71 is connected between the second connecting block 73 to enhance the bearing capacity of the tray 2.

[0067] The connecting seat 7 adopts a split structure, so that the two parts of the connecting seat 7 are respectively threadedly connected to the screw rod 4 and slidably matched with the bracket 3.

[0068] In the above embodiment, the first connecting block 72 and the second connecting block 73 may be connected by connecting members such as bolts.

[0069] Specifically, a first protrusion is protruded from the first connection block 72, and a second protrusion is protruded from the second connection block 73. The first protrusion is located above the second protrusion, and the first protrusion and the second protrusion can be connected by a connecting member such as a bolt.

[0070] In an optional embodiment, if Figure 2 As shown, the silo 1 includes a bottom plate 11, a side plate 12 and a door body 13. The side plate 12 is connected to the bottom plate 11, and the door body 13 is rotatably connected to the bottom plate 11. A storage space is formed between the side plate 12, the door body 13 and the bottom plate 11. A side opening 14 for allowing the tray 2 to enter the storage space is formed between the side plate 12 and the door body 13. The door body 13 and the side opening 14 are arranged opposite to each other, and the side opening 14 and the lifting mechanism are arranged opposite to each other.

[0071] In the above embodiment, the side opening 14 formed between the side panel 12 and the door body 13 facilitates the tray 2 to extend into the storage space, and since the lifting mechanism is arranged relative to the side opening 14, it will not affect the layout of components below the silo and is easy to disassemble and repair the lifting mechanism.

[0072] In an optional embodiment, if Figure 4 As shown, a first buckle 121 and a limit member 122 are provided on the side panel 12, and a second buckle 131 is rotatably connected to the door body 13. The second buckle 131 is used to engage with the first buckle 121 to limit the door body 13 from turning outward relative to the side panel 12. The end of the limit member 122 facing away from the side panel 12 is used to abut against the side of the door body 13 facing the storage space to limit the door body 13 from turning inward relative to the side panel 12.

[0073] When the door body 13 needs to be closed, first rotate the door body 13 so that the second buckle 131 is close to the first buckle 121. When the second buckle 131 contacts the first buckle 121, rotate the second buckle 131 so that the second buckle 131 engages with the first buckle 121, thereby limiting the door body 13 from turning outward, that is, limiting the door body 13 from moving away from the side panel 12. At the same time, the end of the limiting member 122 facing away from the side panel 12 abuts against the side of the door body 13 facing the storage space, thereby limiting the door body 13 from turning inward, that is, limiting the door body 13 from moving toward the side panel 12.

[0074] In the prior art, a latch is installed on the door body 13, and the side plates 12 on both sides of the door body 13 are respectively fixed with latch seats for installing the two ends of the latch, and at least one end of the latch has a limiting protrusion, and the limiting protrusion has a spring that can be compressed along the axial direction of the latch, and the latch seat corresponding to the limiting protrusion is provided with a limiting groove for engaging with the outer peripheral surface of the limiting protrusion. When in use, the limiting protrusion is pulled outward along the axial direction of the latch to overcome the elastic force so that the limiting protrusion exits the limiting groove, and the latch can exit from the side opening on the limiting groove, and the door body 13 is opened. When the door body 13 is not snapped into place, the limiting protrusion is not stuck in the limiting groove, but the end face of the limiting protrusion is against the end face of the latch seat under the action of the spring elastic force, and the door body 13 can be closed even if the door body 13 is not locked under the action of friction, but the position of the door body 13 is incorrect.

[0075] Therefore, in the above embodiment, the above situation can be effectively avoided. Under the engagement of the first clip 121 and the second clip 131 and the two-way restriction of the limit member 122, the door body 13 is restricted at a preset position, thereby ensuring the position accuracy of the door body 13 when it is closed and avoiding the occurrence of incorrect position of the door body 13.

[0076] In an optional embodiment, the second buckle 131 can be rotated relative to the door body 13 as follows: Figure 4 The second buckle 131 is parallel to the rotation axis of the door body 13 relative to the bottom plate 11, so that the second buckle 131 can be inserted into the first buckle 121 from top to bottom. The rotation axis of the second buckle 131 relative to the door body 13 can be perpendicular to the rotation axis of the door body 13 relative to the bottom plate 11, and parallel to the outer surface or inner surface of the door body, so that the second buckle 131 can be inserted into the first buckle 121 from the side.

[0077] In a preferred embodiment, the rotation axis of the second buckle 131 relative to the door body 13 is parallel to the rotation axis of the door body 13 relative to the bottom plate 11, which makes it easier to provide a second buckle 131 on each side of the door body 13, and to fix the two second buckles 131 together through a connecting rod to achieve synchronous movement of the two second buckles 131.

[0078] It can be understood that when the number of the second buckles is two, the number of the first buckles 121 is correspondingly two, and the two second buckles 131 are disposed on the two side panels 12 in a one-to-one correspondence.

[0079] In an optional embodiment, the extending direction of the limiting member 122 is the same as the extending direction of the first buckle 121 , so that the limiting member 122 can limit the inward turning of the door body 13 .

[0080] In an optional embodiment, the first buckle 121 and the limiting member 122 are both connected to the side panel 12 via the fixing block 15 , and there is no need to process too many installation holes on the original side panel 12 .

[0081] On the basis of the above embodiment, the position of the fixing block 15 along the height direction of the side plate 12 can be adjusted, and the height of the first buckle 121 can be adjusted to facilitate a more secure engagement of the first buckle 121 and the second buckle 131 .

[0082] Based on the above-mentioned embodiments, the position of the first buckle 121 relative to the fixed block 15 is adjustable in a direction gradually away from the side panel 12, so that the position of the door body 13 can be adjusted when the first buckle 121 and the second buckle 131 are in the engaged state so that the door body 13 cannot be turned outward, thereby limiting the door body 13 to a preset position.

[0083] The adjustment of the position of the fixing block 15 and the first buckle 121 can be achieved through a variety of structures. Taking the adjustment of the position of the fixing block 15 as an example, Figure 4 As shown, the side plate 12 may be provided with a through hole, and the fixing block 15 may be provided with a waist-shaped hole extending vertically. Bolts may pass through the waist-shaped hole and the through hole and be connected with nuts to lock the position of the fixing block 15 relative to the side plate 12. The user can adjust the position of the fixing block 15 by loosening the nut. Alternatively, the side plate 12 is provided with a plurality of slots in the vertical direction, and the fixing block 15 is provided with a buckle, which can be inserted into any of the slots to adjust the position of the fixing block 15. When the position of the first buckle 121 is adjustable, the through hole can be provided on the fixing block 15, and the waist-shaped hole can be provided on the first buckle 121.

[0084] Based on the above-mentioned embodiments, the distance between the end of the limiting member 122 away from the side panel 12 and the side panel 12 is adjustable, so that the position of the door body 13 when the door body 13 and the limiting member 122 are in contact with each other can be adjusted, and then the first clip 121 and the second clip 131 can be used to limit the door body 13 to a preset position.

[0085] The end of the limit member 122 facing away from the side panel 12 is set to have a limit surface for abutting against the side of the door body 13 facing the storage space. To facilitate the adjustment of the distance of the limit surface relative to the side panel 12, the limit member 122 may include a screw, which is threadedly connected to the fixing block 15. The distance of the limit surface relative to the side panel 12 can be adjusted by turning the screw.

[0086] Of course, the limiting member 122 may also include a sliding rod and an elastic member. The sliding rod slides with the side panel 12 in a direction gradually away from the side panel 12. The end of the sliding rod away from the side panel 12 has a boss. The elastic member is sleeved on the sliding rod, and its two ends are respectively against the side panel 12 and the boss. When the first buckle 121 and the second buckle 131 are engaged, the door body 13 squeezes the elastic member through the sliding rod, so that the elastic member is in an energy storage state. The elastic member gives the door body 13 an outward thrust through the sliding rod to limit the inward turning of the door body 13.

[0087] Of course, the above two implementations are merely examples of optional structures of the limiting member 122 , and the limiting member 122 is not limited to only adopting the above two structural forms.

[0088] In an optional embodiment, if Figure 5 and Figure 6 As shown, a position sensor 16 is also provided on the side plate 12 , and the position sensor 16 is configured to be triggered when the door body 13 is closed to a preset position.

[0089] The in-position sensor 16 may be an infrared sensor, a contact sensor, or the like.

[0090] In a preferred embodiment, the in-position sensor 16 has a trigger surface for contacting the door body 13 when the door body 13 is closed to a preset position.

[0091] When the door body 13 is closed to a preset position, the door body 13 triggers the trigger surface, so that people can know the closed state of the door body 13. Compared with the distance sensor that detects the distance between the door body 13 and the side panel 12, the detection accuracy can be improved.

[0092] It can be understood that the above-mentioned in-position sensor 16 is a contact sensor.

[0093] In an optional embodiment, the position of the in-position sensor 16 is adjustable relative to the fixing block 15 in a direction gradually away from the side plate 12 .

[0094] The position adjustment of the in-position sensor 16 can be achieved through a variety of structures, and the specific structure for adjusting the position of the fixed block 15 can be referred to. Figure 6As shown, a through hole is provided on the fixing block 15, and the in-position sensor 16 is connected to the fixing block 15 via a third connecting block 17. A waist-shaped hole is provided on the third connecting block 17, and bolts can pass through the waist-shaped hole and the through hole and lock or unlock the position of the fixing block 15 relative to the side plate 12 through a nut.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A tray storage and transportation device, characterized in that: The invention comprises a silo (1), a tray (2) and a lifting mechanism located on the side of the silo (1); the lifting mechanism comprises a bracket (3), a screw rod (4), a transmission assembly (5), a drive assembly (6) and a connecting seat (7); the screw rod (4) is rotatably connected to the bracket (3); the drive assembly (6) is installed on the bracket (3) and is transmission-connected to the screw rod (4) through the transmission assembly (5); the connecting seat (7) is threadedly connected to the screw rod (4) and slidably cooperates with the bracket (3) along the extension direction of the screw rod (4); the tray (2) is connected to the connecting seat (7) and extends into the silo (1).

2. The tray storage and transportation device according to claim 1, characterized in that: The driving assembly (6) comprises a mounting plate (61), a motor (62) and a fastener (63); the mounting plate (61) is adjustably connected to the bracket (3) via the fastener (63); the motor (62) is fixedly mounted on the mounting plate (61) and is drivingly connected to the transmission assembly (5).

3. The tray storage and transportation device according to claim 2, characterized in that: One of the mounting plate (61) and the bracket (3) is provided with a first connection structure, and the other is provided with a second connection structure arranged opposite to the first connection structure; The first connection structure and the second connection structure cooperate with the fastener (63) respectively, so that the mounting plate (61) is connected to the bracket (3) in an adjustable position via the fastener (63).

4. The tray storage and transportation device according to claim 2, characterized in that: The transmission assembly (5) comprises a driving wheel (51), a belt (52) and a driven wheel (53); the motor (62) is drivingly connected to the driving wheel (51); the driven wheel (53) is connected to the screw rod (4); and the driving wheel (51) and the driven wheel (53) are drivingly connected via the belt (52).

5. The tray storage and transportation device according to claim 1, characterized in that: The bracket (3) comprises a first fixing frame (31), a guide rail (32) and a second fixing frame (33); The guide rail (32) is mounted on the first fixing frame (31) and its extension direction is parallel to the extension direction of the screw rod (4), and the guide rail (32) is slidably matched with the connecting seat (7); One end of the second fixing frame (33) is connected to the first fixing frame (31), and the other end is mounted with the driving assembly (6); the screw rod (4) is rotatably connected to the second fixing frame (33) and is located between the first fixing frame (31) and the driving assembly (6).

6. The tray storage and transportation device according to claim 5, characterized in that: The bottom end of the first fixing frame (31) is connected to the bottom plate (11) of the silo (1), and the bottom end of the screw rod (4) is rotatably connected to the bottom plate (11) of the silo (1).

7. The tray storage and transportation device according to claim 1, characterized in that: The connecting seat (7) comprises a reinforcing rib (71), a first connecting block (72) and a second connecting block (73) connected to the first connecting block (72); the first connecting block (72) is threadedly connected to the screw rod (4); the second connecting block (73) is slidably matched with the bracket (3); the tray (2) is connected to the second connecting block (73) and the reinforcing rib (71) is connected to the second connecting block (73).

8. The tray storage and transportation device according to any one of claims 1 to 7, characterized in that: The silo (1) comprises a bottom plate (11), a side plate (12) and a door body (13); the side plate (12) is connected to the bottom plate (11); the door body (13) is rotatably connected to the bottom plate (11); a material storage space is formed between the side plate (12), the door body (13) and the bottom plate (11); a side opening (14) for allowing the tray (2) to enter the material storage space is formed between the side plate (12) and the door body (13); and the lifting mechanism is arranged opposite to the side opening (14).

9. The tray storage and transportation device according to claim 8, characterized in that: The side panel (12) is provided with a first buckle (121) and a limiting member (122); the door body (13) is rotatably connected with a second buckle (131); the second buckle (131) is used to engage with the first buckle (121) to limit the door body (13) from turning outward relative to the side panel (12); an end of the limiting member (122) away from the side panel (12) is used to abut against a side of the door body (13) facing the material storage space to limit the door body (13) from turning inward relative to the side panel (12).

10. The tray storage and transportation device according to claim 9, characterized in that: The first buckle (121) and the limiting member (122) are both connected to the side plate (12) via a fixing block (15); The position of the fixing block (15) in the height direction of the side panel (12) is adjustable, and / or the position of the first buckle (121) relative to the fixing block (15) is adjustable in a direction gradually away from the side panel (12), and / or the distance of one end of the limiting member (122) away from the side panel (12) relative to the side panel (12) is adjustable.

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