Combined conveying platform with falling emergency protection and protection control method

Abstract

The invention relates to the technical field of conveying platforms, in particular to a combined type conveying platform with a falling emergency protection function and a protection control method.The combined type conveying platform comprises a base arranged in a lifting pit and further comprises a lifting assembly; a lifting platform; the weight sensor is fixed at the top of the lifting platform; the conveying table is fixed at the top of the weight sensor; the conveying assembly is used for conveying the materials by driving a rotating roller; the control unit is mounted on the base; when the weight sensor monitors that the conveyed materials are overweight, the overturning protection assembly is used for narrowing the falling space of the conveying table through overturning so as to carry out falling emergency protection on the conveying table during falling; according to the device, through the arrangement of the overturning protection assembly, the falling conveying table can be protected and buffered at the first time, so that the situation that the conveying table rapidly falls and then is violently impacted is avoided, and the situation that the conveying table is damaged under the impact effect is advantageously avoided.

Description

Technical Field

[0001] This invention relates to the field of conveyor platforms, and more particularly to a combined conveyor platform with emergency fall protection and a protection control method. Background Technology

[0002] Modular conveyor operation platforms are multifunctional logistics equipment composed of multiple combinable components. They can be flexibly assembled according to different operational needs, adapting to diverse cargo transportation and handling tasks. In warehousing, logistics, production and other fields, they can effectively improve conveying efficiency, are easy to adjust and expand, meet the requirements of changing operational scenarios, and provide stable and efficient platform support for material handling.

[0003] In the prior art, when a combined conveyor platform is used to transport materials, if the material being transported is too heavy when the platform is raised to its highest position, the excessive weight of the material can put a strain on the platform, potentially causing it to fall during transport and thus affecting its normal operation. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a combined transport platform with fall protection and a protection control method.

[0005] In a first aspect, the present invention provides a combined transport platform with fall emergency protection, including a base disposed inside a lifting pit, and further comprising:

[0006] A lifting assembly is fixed to the top of the base;

[0007] A lifting platform is fixed to the top of the lifting assembly;

[0008] A weight sensor is fixed to the top of the lifting platform;

[0009] A conveyor table is fixed to the top of the weight sensor;

[0010] A conveying assembly, mounted on top of the conveyor table, is used to convey materials by driving rotating rollers;

[0011] The control unit is mounted on the base.

[0012] A tilting protection component is installed between the lifting pit and the conveyor platform. When the weight sensor detects that the conveyed material is overweight, the control unit triggers the tilting protection component. The tilting protection component is used to narrow the falling space of the conveyor platform by tilting, so as to provide emergency fall protection for the conveyor platform in the event of a fall.

[0013] After the lifting assembly is activated, it drives the lifting platform to move vertically. The lifting frame then drives the weight sensor and the conveyor table to move vertically, thereby moving the conveyor table to a suitable conveying height. Once activated, the conveying assembly can convey materials. The weight sensor can detect the weight of the materials conveyed on the conveyor table. When the weight of the conveyed materials exceeds the set threshold, the control unit controls the tilt protection assembly to activate. The tilt protection assembly can activate and enter the protection and prevention state. In this state, the conveyor table works normally. If the conveyor table continues to work normally during the period when the weight exceeds the threshold, the tilt protection assembly will reset after the conveying weight returns to normal, without interfering with the material conveying on the conveyor table. However, if the conveyor table falls due to overloading, since the tilt protection assembly is already in the protection and prevention state, if the conveyor table falls, the tilt protection assembly can immediately cushion the falling conveyor table to avoid a violent impact caused by the rapid fall, thus helping to prevent damage to the conveyor table under impact.

[0014] Preferably, the flip protection component includes:

[0015] Multiple tilting tracks are installed on the side wall of the lifting pit by tilting them from the top.

[0016] Multiple fixed frames are respectively fixed to the side wall of the conveyor table, and each end is connected to a sliding table, which slides in cooperation with the flipping track;

[0017] Multiple cylinders are fixed on the base, and a translation stage is fixed to the end of the telescopic rod of each cylinder;

[0018] Multiple first flipping heads are respectively connected to the bottom of each of the flipping tracks;

[0019] Two crossbeams are fixed to the bottom of the first flipping head distributed at both ends. The crossbeams are slidably installed on the bottom of the lifting pit via slide rails, and the ends of the translation platform are fixedly connected to the adjacent crossbeams.

[0020] After the cylinder is started, it drives the translation platform to move via the telescopic rod. The translation platform drives the crossbeam to move, and the crossbeam drives the first tilting head to move. After the first tilting head moves, it drives the bottom of the tilting track to move. At the same time, the connection between the tilting track and the first tilting head is adjustable, thereby causing the tilting track to tilt. This causes the tilting track to tilt downwards towards the center of the lifting pit, thereby reducing the falling space inside the lifting pit. As the conveyor platform falls, the sliding space gradually decreases, and the resulting squeezing and friction gradually increase, thus offsetting the impact force generated by the falling conveyor platform. This provides emergency protection against falling, allowing the conveyor platform to gradually decelerate and stop during the fall, reaching a relatively stable state and avoiding damage from the fall.

[0021] Preferably, the flip protection assembly further includes:

[0022] Multiple first insertion rods are respectively inserted into the interior of each of the aforementioned fixing frames;

[0023] Multiple second flip heads are respectively fixed to the ends of each of the first plug-in rods, and the second flip heads are rotatably connected to each of the sliding tables.

[0024] Multiple first springs are respectively fixed between each of the first plug-in rods and the corresponding fixing frame;

[0025] The first connecting rod and the first spring are designed so that during the descent of the conveyor table, the second flipping head can compress the first spring, thus providing elastic compression buffer. This prevents a sudden impact due to the reduced descent space when the conveyor table falls. Instead, as it falls, the elastic force of the first spring gradually increases after compression, thereby gradually increasing the compressive force. This ensures that the conveyor table stops gradually, avoiding impact. The rotational connection between the second flipping head and the sliding table allows the sliding table to rotate to adapt to the rotation of the flipping track, thus maintaining a sliding fit.

[0026] Preferably, the flip protection assembly further includes:

[0027] Multiple second plug-in rods are respectively connected to the top of each of the first flip heads;

[0028] Multiple sets of first limiting pins, several first limiting pins as a group, a single first limiting pin is arranged in a ring, the first limiting pins in the same group are arranged in a vertical linear array, and each group of first limiting pins is fixed to the outer wall of each second plug rod.

[0029] Multiple sets of second limiting pins, several second limiting pins as a group, a single second limiting pin is arranged in a ring, and the second limiting pins in the same group are arranged in a vertical linear array. Each group of second limiting pins is fixed inside the insertion slot of each of the flipping tracks. The first limiting pin and the second limiting pin are adapted to each other.

[0030] The bottom of the second connector rod is connected to the top of the first flip head, and the top is inserted into the connector slot of the flip track. When the flip track flips, the flip track and the first flip head move relative to each other, which causes the second connector rod to move relative to the flip track. This pulls the first limiting pin to move relative to the second limiting pin. When the first limiting pin moves downward, it can pass through the second limiting pin and move out. When it moves upward, it is blocked by the second limiting pin, thus preventing the flip track from being squeezed back to its original position under the squeezing action, which would cause the protective effect to disappear. This helps to improve the stability of fall protection.

[0031] Preferably, the flip protection assembly further includes:

[0032] Multiple telescopic rods are respectively inserted into the bottom of each of the second plug-in rods, and the bottoms are respectively rotatably connected to each of the first flip heads;

[0033] Multiple second springs are respectively fixed between each of the telescopic rods and the corresponding second plug-in rods;

[0034] Multiple sets of first clearance ports, multiple first clearance ports form a group, and the first clearance ports in the same group are arranged in a circular array and pass through the second limiting pin in the same group;

[0035] Multiple sets of second clearance openings, with multiple second clearance openings forming a group, and the second clearance openings in the same group forming a circular array that penetrates the first limiting pin in the same group;

[0036] A driving component, mounted on the base, is used to drive each of the telescopic rods to rotate;

[0037] When the tilting track tilts, it drives the drive component to move, which in turn drives the telescopic rod to rotate. The telescopic rod drives the second insertion rod to rotate, which in turn drives the first limit pin to rotate. This causes the first limit pin to rotate, intermittently engaging with the second limit pin through the second clearance port. During this engagement, the second insertion rod can move freely up and down within the insertion slot of the tilting track. This allows the second spring to compress and extend during the pushing process, providing a certain length adjustment range between the second insertion rod and the drive telescopic rod. This allows for a brief clearance when the second limit pin is not engaged with the second clearance port, thus avoiding the need for forced pushing during the pushing process. If the cylinder does not drive the tilting track to tilt, the locking action of the first and second limit pins will not push the tilting track to reset, thereby improving the stability of the tilting track after tilting. When the cylinder is activated, it drives the tilting track to tilt, and the intermittent engagement of the second clearance port with the second limit pin achieves a smooth reset.

[0038] Preferably, the driving component includes:

[0039] Multiple first bevel gears are respectively fixed to the bottom of each of the telescopic rods;

[0040] Multiple second bevel gears are rotatably mounted inside each of the first flip heads, and the second bevel gears mesh with the corresponding first bevel gears;

[0041] Multiple first gears are coaxially fixed to each of the second bevel gears;

[0042] Multiple first racks are fixed to the edge of the base and respectively mesh with each of the first racks;

[0043] When the flip track flips, it drives the first gear to move synchronously. The first gear meshes with the first rack and generates relative movement, thereby driving the first gear to rotate. The first gear drives the second bevel gear to rotate, the second bevel gear drives the first bevel gear that meshes with it to rotate, and the first bevel gear drives the telescopic rod to rotate, thereby driving the second plug rod and the first limit pin to rotate.

[0044] Preferably, the flip protection assembly further includes:

[0045] Multiple sets of second gears, with multiple second gears forming a group, and each group of second gears is installed in a linear array inside each of the flipping tracks. The outer wall of the shaft of each second gear is provided with a friction layer.

[0046] Multiple second racks are fixed to the sidewalls of each of the sliding tables, and the second racks mesh with the second gears.

[0047] During the descent of the conveyor platform, the sliding platform moves downward, which in turn moves the second rack downward. During this movement, the second rack meshes with the second gear, causing the second gear to rotate. The friction layer on the outer wall of the second gear shaft further increases the resistance to the downward movement of the second rack and also provides resistance to the upward movement of the second rack. This helps to prevent the conveyor platform from impacting and rebounding, thereby improving the stability of the conveyor platform during its descent.

[0048] Preferably, the flip protection assembly further includes:

[0049] Multiple one-way bearings are respectively installed between the shaft end of each of the second gears and the tilting track;

[0050] Multiple rotating disks are respectively fixed to the ends of the one-way bearing and rotatably mounted inside the tilting track;

[0051] Multiple limiting ports are respectively opened at the ends of each of the rotating disks;

[0052] Multiple connecting frames are slidably installed inside each of the flipping tracks, and multiple third limiting pins adapted to the limiting ports are fixed on the side walls of each connecting frame.

[0053] A linkage is installed between the connecting frame and the second plug rod, and is used to drive the connecting frame to move when the flip track flips so that each of the third limiting pins is inserted into the respective limiting port.

[0054] The second connecting rod drives the connecting frame to move vertically via the linkage, which in turn drives the third limiting pin to move. When the third limiting pin moves into the limiting port, it can limit the rotating disk, thereby positioning one end of the one-way bearing. This allows the second gear to rotate in one direction, preventing the conveyor table from moving upward after it falls, thus hindering the upward vibration and rebound of the conveyor table. When the third limiting pin moves out of the limiting port, the second gear can rotate in both directions, allowing the conveyor table to move freely up and down.

[0055] Preferably, the linkage includes:

[0056] Multiple third plug rods are fixed to the top of each of the second plug rods, and the tops of each plug rod are inserted into the bottom of each of the connecting frames;

[0057] Multiple ends are fixed to the top of each of the third plug-in rods, and each end has a guide opening on its side wall;

[0058] Multiple guide rails are fixed inside the insertion slots at the bottom of each of the connecting frames, and the guide rails are adapted to the guide ports.

[0059] Multiple sets of third springs, with two third springs forming a group, and the third springs in the same group being fixed to the top and bottom of the bottom insertion slot of the connecting frame respectively;

[0060] The second connecting rod drives the third connecting rod to rotate, which in turn drives the end and guide port to rotate. After the guide port rotates, it moves the third connecting rod vertically under the guidance of the guide rail. When the end moves to the top and bottom, the guide port disengages from the guide rail, thus defining the range of vertical movement of the third connecting rod. When the end moves to the top and bottom, it is subjected to the elastic force of the third spring, which allows the guide port to be pushed back to engage with the guide rail under the elastic force of the third spring during reverse rotation, thus achieving guidance and engagement. This allows the tilting track to move in a tilted state, thereby achieving unidirectional limitation of the conveyor table by driving the connecting frame to move. In the protective and preventative state, the conveyor table can only move downwards in one direction, while in the reset state, the conveyor table can move freely up and down.

[0061] Secondly, a protection control method for a combined transport platform with fall emergency protection is provided, the control method comprising the following steps:

[0062] Step 1: The control unit acquires overweight information from the weight sensor, which is generated by the weight sensor when it detects that the weight of the material exceeds a set threshold.

[0063] Step 2: The control unit generates protection control information based on the overweight information, and the protection control information is used to control the activation of the flip protection component;

[0064] Step 3: The control unit sends the protection control information to the flip protection component to control the flip protection component to start flipping and narrowing the falling space of the conveyor platform, so as to provide emergency protection for the conveyor platform during the fall.

[0065] Compared with the prior art, the present invention has the following beneficial effects:

[0066] 1. By setting up the flip-over protective component, the falling conveyor can be protected and buffered in the first instance to avoid the conveyor from falling rapidly and causing a violent impact, thereby helping to avoid damage to the conveyor under impact.

[0067] 2. With the setting of the first spring, as it falls, the elastic force of the first spring gradually increases after compression, thereby gradually increasing the squeezing force, so that the process of stopping the conveyor table is gradual, avoiding impact. The rotational connection between the second flipping head and the sliding table allows the sliding table to flip to adapt to the flipping track, thereby maintaining the sliding fit.

[0068] 3. By setting the first and second clearance ports, if the cylinder does not drive the tilting track to tilt, the locking action of the first and second limit pins will not push the tilting track to reset, thus improving the stability of the tilting track after it tilts. When the cylinder is started, it can drive the tilting track to tilt, and the second clearance port can be used to intermittently cooperate with the second limit pin to achieve smooth reset. Attached Figure Description

[0069] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0070] Figure 2 This is a schematic diagram of the structure of the overturning protection component of the present invention in conjunction with the conveyor table.

[0071] Figure 3 For the present invention Figure 2 A magnified structural diagram of point A in the middle.

[0072] Figure 4 This is a cross-sectional structural diagram of the flip protection component of the present invention.

[0073] Figure 5 For the present invention Figure 4 A magnified structural diagram at point B in the middle.

[0074] Figure 6 For the present invention Figure 4 A magnified structural diagram at point C.

[0075] Figure 7 This is a schematic diagram of the structure of the flip track after cross-section according to the present invention.

[0076] Figure 8 This is a schematic diagram of the structure of the present invention after cross-section along the third insertion rod.

[0077] Figure 9 For the present invention Figure 8 A magnified structural diagram at point D.

[0078] In the diagram: 1. Conveyor table; 101. Conveyor assembly; 102. Lifting platform; 103. Base; 104. Lifting assembly; 105. Weight sensor; 106. Lifting pit; 2. Tilting track; 201. Fixing frame; 202. Sliding table; 203. Cylinder; 204. Translation table; 205. First tilting head; 206. Crossbeam; 207. Slide rail; 3. First connecting rod; 301. Second tilting head; 302. First spring; 4. Second connecting rod; 401. First limit pin; 402. Second... 5. Limiting pin; 6. Telescopic rod; 7. Second spring; 8. First clearance opening; 9. Second clearance opening; 10. First bevel gear; 11. Second bevel gear; 12. First gear; 13. First rack; 14. Second gear; 15. Second rack; 16. One-way bearing; 17. Rotating disk; 18. Limiting opening; 19. Third limiting pin; 10. Connecting frame; 11. Third insertion rod; 12. End; 13. Guide opening; 14. Guide rail; 15. Third spring. Detailed Implementation

[0079] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0080] like Figures 1 to 9 The illustrated modular transport platform with fall emergency protection includes a base 103 disposed inside an elevator pit 106, and further includes:

[0081] The lifting assembly 104 is fixed to the top of the base 103;

[0082] The lifting platform 102 is fixed to the top of the lifting assembly 104;

[0083] Weight sensor 105 is fixed to the top of lifting platform 102;

[0084] Conveyor 1 is fixed to the top of weight sensor 105;

[0085] The conveying assembly 101 is installed on the top of the conveying table 1 and is used to convey materials by driving rotating rollers;

[0086] The control unit is mounted on the base 103;

[0087] The overturning protection component is installed between the lifting pit 106 and the conveyor table 1. When the weight sensor 105 detects that the conveyed material is overweight, the control unit triggers the overturning protection component. The overturning protection component is used to narrow the falling space of the conveyor table 1 by overturning, so as to provide emergency protection for the conveyor table 1 in the event of a fall.

[0088] In the existing technology, when a combined conveyor platform is used to transport materials, if the material being transported is too heavy when the platform is raised to its highest position, the excessive weight of the material will put a burden on the platform, which may cause it to fall during transport and thus affect its normal operation.

[0089] This embodiment of the invention can solve the above problems. The specific implementation is as follows: After the lifting component 104 is started, it drives the lifting platform 102 to move vertically. The lifting platform 102 drives the weight sensor 105 and the conveyor table 1 to move vertically, thereby moving the conveyor table 1 to a suitable conveying height. After the conveying component 101 is started, it can convey materials. The weight sensor 105 can detect the weight of the material conveyed on the conveyor table 1. When the weight of the conveyed material exceeds the set threshold, the control unit controls the flip protection component to start. The flip protection component can start and enter the protection and prevention state. In this state, the conveyor table 1 works normally. If the conveyor table 1 continues to work normally during the period when the weight exceeds the threshold, the flip protection component will reset after the conveying weight returns to normal, and will not interfere with the material conveying on the conveyor table 1. When the conveyor table 1 is over-conveyed and falls, since the flip protection component is already in the protection and prevention state, if the conveyor table 1 falls, the flip protection component can protect and buffer the falling conveyor table 1 at the first time to avoid the conveyor table 1 falling rapidly and causing a violent impact, thereby helping to avoid the conveyor table 1 being damaged under the impact.

[0090] As an optional embodiment, the flip protection component includes:

[0091] Multiple tilting tracks 2 are respectively installed on the side wall of the lifting pit 106 by tilting from the top;

[0092] Multiple fixed frames 201 are fixed to the side wall of the conveyor table 1, and each end is connected to a sliding table 202, which slides in cooperation with the tilting track 2.

[0093] Multiple cylinders 203 are fixed on the base 103, and a translation stage 204 is fixed to the end of the telescopic rod of the cylinder 203;

[0094] Multiple first flipping heads 205 are respectively connected to the bottom of each flipping track 2;

[0095] Two horizontal frames 206 are fixed to the bottom of the first flipping head 205 distributed at both ends. The horizontal frames 206 are slidably installed on the bottom of the lifting pit 106 via slide rails 207, and the ends of the translation platform 204 are fixedly connected to the adjacent horizontal frames 206 respectively.

[0096] After cylinder 203 is started, it drives the translation platform 204 to move via the telescopic rod. The translation platform 204 drives the crossbeam 206 to move, and the crossbeam 206 drives the first flipping head 205 to move. After the first flipping head 205 moves, it drives the bottom of the flipping track 2 to move. At the same time, the connection between the flipping track 2 and the first flipping head 205 is adjustable, thereby causing the flipping track 2 to flip. This causes the lower part of the flipping track 2 to flip towards the center of the lifting pit 106, thereby reducing the falling space inside the lifting pit 106. As the conveyor platform 1 falls, the sliding space of the flipping track 2 gradually decreases, thereby increasing the squeezing and friction forces. This counteracts the impact force generated by the falling of the conveyor platform 1, providing emergency protection against fall. This allows the conveyor platform 1 to gradually decelerate and stop during the fall, reaching a relatively stable state and avoiding damage from the fall.

[0097] As an optional embodiment, the flip protection component further includes:

[0098] Multiple first insertion rods 3 are respectively inserted into the interior of each fixing frame 201;

[0099] Multiple second flip heads 301 are fixed to the ends of each first plug rod 3, and the second flip heads 301 are rotatably connected to each sliding table 202.

[0100] Multiple first springs 302 are respectively fixed between each first plug-in rod 3 and the corresponding fixing frame 201;

[0101] The first connecting rod 3 and the first spring 302 are designed so that during the descent of the conveyor table 1, the second flipping head 301 can squeeze the first spring 302, thus providing elastic compression buffer. This prevents the conveyor table 1 from experiencing a sudden impact due to the reduced descent space. Instead, as it falls, the elastic force of the first spring 302 gradually increases after compression, thereby gradually increasing the squeezing force. This ensures that the conveyor table 1 stops gradually, avoiding impact. The rotational connection between the second flipping head 301 and the sliding table 202 allows the sliding table 202 to rotate to adapt to the rotation of the flipping track 2, thus maintaining a sliding fit.

[0102] As an optional embodiment, the flip protection component further includes:

[0103] Multiple second plug-in rods 4 are respectively connected to the top of each first flip head 205;

[0104] Multiple sets of first limiting pins 401, several first limiting pins 401 are grouped together, a single first limiting pin 401 is arranged in a ring, and the first limiting pins 401 in the same group are arranged in a vertical linear array. Each set of first limiting pins 401 is fixed to the outer wall of each second plug rod 4.

[0105] Multiple sets of second limiting pins 402, several second limiting pins 402 as a group, a single second limiting pin 402 is arranged in a ring, and the second limiting pins 402 in the same group are arranged in a vertical linear array. Each set of second limiting pins 402 is fixed inside the insertion slot of each flip track 2. The first limiting pin 401 is adapted to the second limiting pin 402.

[0106] The bottom of the second plug rod 4 is connected to the top of the first flip head 205, and the top is inserted into the plug groove of the flip track 2. When the flip track 2 flips, the flipping of the flip track 2 and the first flip head 205 move relative to each other, so that the second plug rod 4 moves relative to the flip track 2. This pulls the first limit pin 401 to move relative to the second limit pin 402. When the first limit pin 401 moves downward, it can pass through the second limit pin 402 and move out. When it moves upward, it is blocked by the second limit pin 402. This prevents the flip track 2 from being squeezed back to its original position under the squeezing action, which would cause the protective effect to disappear. This helps to improve the stability of fall emergency protection.

[0107] As an optional embodiment, the flip protection component further includes:

[0108] Multiple telescopic rods 5 are respectively inserted into the bottom of each second plug rod 4, and the bottom of each rod is rotatably connected to each first flip head 205.

[0109] Multiple second springs 501 are respectively fixed between each telescopic rod 5 and the corresponding second plug-in rod 4;

[0110] Multiple sets of first clearance ports 502, multiple first clearance ports 502 form a group, and the first clearance ports 502 in the same group are arranged in a circular array and pass through the second limit pin 402 in the same group.

[0111] Multiple sets of second clearance ports 503, multiple second clearance ports 503 are grouped together, and the second clearance ports 503 in the same group are arranged in a circular array and pass through the first limiting pin 401 in the same group;

[0112] The driving component, mounted on the base 103, is used to drive each telescopic rod 5 to rotate;

[0113] When the flip track 2 flips, it drives the driving component to move, thereby driving the telescopic rod 5 to rotate. The telescopic rod 5 drives the second insertion rod 4 to rotate, and the second insertion rod 4 drives the first limit pin 401 to rotate. After the first limit pin 401 rotates, it drives the second clearance port 503 to intermittently engage with the second limit pin 402. During engagement, the second insertion rod 4 can move freely up and down inside the insertion slot of the flip track 2, thereby driving the second spring 501 to compress and extend during the pushing process. This allows for a certain length adjustment range between the second insertion rod 4 and the driving telescopic rod 5. This allows for a brief period of clearance when the second clearance port 503 is not engaged with the second limit pin 402, thus avoiding the need for forced pushing during the pushing process. If the cylinder 203 does not drive the flipping track 2 to flip, the locking action of the first limit pin 401 and the second limit pin 402 will not push the flipping track 2 to reset it, thereby improving the stability of the flipping track 2 after flipping. When the cylinder 203 is started, it can drive the flipping track 2 to flip, and the second clearance port 503 intermittently engages with the second limit pin 402 to achieve a smooth reset.

[0114] As an optional embodiment, the driver includes:

[0115] Multiple first bevel gears 601 are fixed to the bottom of each telescopic rod 5;

[0116] Multiple second bevel gears 602 are rotatably installed inside each first flipping head 205, and the second bevel gears 602 mesh with the corresponding first bevel gears 601;

[0117] Multiple first gears 603 are coaxially fixed to each second bevel gear 602;

[0118] Multiple first racks 604 are fixed to the edge of the base 103 respectively, and each first rack 604 is engaged with the other first rack;

[0119] When the flipping track 2 flips, it drives the first gear 603 to move synchronously. The first gear 603 meshes with the first rack 604 and generates relative movement, thereby driving the first gear 603 to rotate. The first gear 603 drives the second bevel gear 602 to rotate. The second bevel gear 602 drives the first bevel gear 601, which meshes with it, to rotate. The first bevel gear 601 drives the telescopic rod 5 to rotate, thereby driving the second plug rod 4 and the first limit pin 401 to rotate.

[0120] As an optional embodiment, the flip protection component further includes:

[0121] Multiple sets of second gears 7, with multiple second gears 7 forming a group, and each set of second gears 7 is installed in a linear array inside each flip track 2. The outer wall of the rotating shaft of each second gear 7 is provided with a friction layer.

[0122] Multiple second racks 701 are fixed to the side walls of each sliding table 202, and the second racks 701 are meshed with the second gears 7.

[0123] During the descent of the conveyor platform 1, the sliding platform 202 moves downward, and the sliding platform 202 moves the second rack 701 downward. During the movement of the second rack 701, it meshes with the second gear 7 to drive the second gear 7 to rotate. The friction layer provided on the outer wall of the shaft of the second gear 7 can further increase the resistance to the downward movement of the second rack 701 and can also provide resistance to the upward movement of the second rack 701, thereby helping to prevent the impact and rebound of the conveyor platform 1, and thus helping to improve the stability of the conveyor platform 1 during the descent.

[0124] As an optional embodiment, the flip protection component further includes:

[0125] Multiple one-way bearings 8 are respectively installed between the shaft end of each second gear 7 and the tilting track 2;

[0126] Multiple rotating disks 801 are respectively fixed to the ends of one-way bearings 8 and rotatably mounted inside the tilting track 2;

[0127] Multiple limit ports 802 are respectively opened at the ends of each rotating disk 801;

[0128] Multiple connecting frames 804 are slidably installed inside each flip track 2, and multiple third limiting pins 803 that are adapted to the limiting port 802 are fixed on the side wall of each connecting frame 804.

[0129] The linkage is installed between the connecting frame 804 and the second insertion rod 4, and is used to drive the connecting frame 804 to move when the flip track 2 flips so that each third limit pin 803 is inserted into the respective limit port 802.

[0130] The second insertion rod 4 drives the connecting frame 804 to move vertically through the linkage, thereby driving the third limit pin 803 to move. When the third limit pin 803 moves into the limit port 802, it can limit the rotating disk 801, thereby positioning one end of the one-way bearing 8, which in turn causes the second gear 7 to rotate in one direction. This prevents the conveyor table 1 from moving upward after falling, thus hindering the upward vibration and rebound of the conveyor table 1. When the third limit pin 803 moves out of the limit port 802, the second gear 7 can rotate in both directions, allowing the conveyor table 1 to move freely up and down.

[0131] As an optional embodiment, the linkage includes:

[0132] Multiple third plug rods 9 are fixed to the top of each second plug rod 4, and the tops are respectively inserted into the bottom of each connecting frame 804;

[0133] Multiple ends 901 are fixed to the top of each third plug rod 9, and each side wall is provided with a guide port 902;

[0134] Multiple guide rails 903 are fixed inside the insertion slots at the bottom of each connecting bracket 804, and the guide rails 903 are adapted to guide the guide ports 902.

[0135] Multiple sets of third springs 904, two third springs 904 form a group, and the third springs 904 in the same group are respectively fixed to the top and bottom of the bottom insertion slot of the connecting frame 804;

[0136] The second connecting rod 4 drives the third connecting rod 9 to rotate. The third connecting rod 9 drives the end 901 and the guide port 902 to rotate. After the guide port 902 rotates, under the guiding action of the guide rail 903, it drives the third connecting rod 9 to move vertically. When the end 901 moves to the top and bottom, the guide port 902 disengages from the guide rail 903, thus determining the range of vertical movement of the third connecting rod 9. When the end 901 moves to the top and bottom, it is subjected to the elastic force of the third spring 904. When rotating in the opposite direction, under the elastic force of the third spring 904, the guide port 902 can be pushed to engage with the guide rail 903 again, thus achieving guiding engagement. This allows the tilting track 2 to achieve unidirectional limiting of the conveyor table 1 by driving the movement of the connecting frame 804 when tilted to the tilted state. In the protective and preventive state, the conveyor table 1 can only move downward in one direction. In the reset state, the conveyor table 1 can move freely up and down.

[0137] A protective control method for a combined transport platform with fall emergency protection, the method comprising the following steps:

[0138] Step 1: The control unit obtains overweight information from the weight sensor 105. The overweight information is generated by the weight sensor 105 when it detects that the weight of the material exceeds a set threshold.

[0139] Step 2: The control unit generates protection control information based on the overweight information. The protection control information is used to control the activation of the flip protection component.

[0140] Step 3: The control unit sends the protection control information to the flip protection component to control the flip protection component to start flipping and narrowing the falling space of the conveyor platform 1, so as to provide emergency protection for the conveyor platform 1 during the fall.

[0141] The working principle of this invention is as follows: After the lifting component 104 is started, it drives the lifting platform 102 to move vertically. The lifting platform 102 drives the weight sensor 105 and the conveyor table 1 to move vertically, thereby moving the conveyor table 1 to a suitable conveying height. After the conveying component 101 is started, it can convey materials. The weight sensor 105 can detect the weight of the material conveyed on the conveyor table 1. When the weight of the conveyed material exceeds the set threshold, the control unit controls the flip protection component to start. The flip protection component can start and enter the protection and prevention state. In this state, the conveyor table 1 works normally. If the conveyor table 1 continues to work normally during the period when the weight exceeds the threshold, the flip protection component will reset after the conveying weight returns to normal, and will not interfere with the material conveying on the conveyor table 1. When the conveyor table 1 is over-conveyed and falls, since the flip protection component is already in the protection and prevention state, if the conveyor table 1 falls, the flip protection component can protect and buffer the falling conveyor table 1 at the first time to avoid the conveyor table 1 falling rapidly and causing a violent impact, thereby helping to avoid the conveyor table 1 being damaged under the impact.

[0142] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A combined conveyor platform with fall protection, comprising a base (103) disposed inside a lifting pit (106), characterized in that, Also includes: The lifting assembly (104) is fixed to the top of the base (103); The lifting platform (102) is fixed to the top of the lifting assembly (104); A weight sensor (105) is fixed to the top of the lifting platform (102); The conveyor (1) is fixed to the top of the weight sensor (105); A conveying assembly (101) is installed on the top of the conveying table (1) for conveying materials by driving rotating rollers; The control unit is mounted on the base (103); The overturning protection component is installed between the lifting pit (106) and the conveyor (1). When the weight sensor (105) detects that the conveyed material is overweight, the control unit triggers the overturning protection component. The overturning protection component is used to narrow the falling space of the conveyor (1) by overturning, so as to provide emergency protection for the conveyor (1) during a fall.

2. The combined conveyor platform with fall emergency protection according to claim 1, characterized in that, The flip-over protection component includes: Multiple flipping tracks (2) are respectively installed on the side wall of the lifting pit (106) by flipping from the top; Multiple fixed frames (201) are respectively fixed on the side wall of the conveyor table (1), and each end is connected to a sliding table (202). The sliding table (202) is slidably engaged with the flipping track (2). Multiple cylinders (203) are fixed on the base (103), and a translation stage (204) is fixed to the end of the telescopic rod of the cylinder (203). Multiple first flipping heads (205) are respectively connected to the bottom of each of the flipping tracks (2); Two crossbeams (206) are fixed to the bottom of the first flipping head (205) distributed at both ends. The crossbeams (206) are slidably installed on the bottom of the lifting pit (106) via slide rails (207), and the ends of the translation platform (204) are fixedly connected to the adjacent crossbeams (206).

3. A combined conveyor platform with fall emergency protection according to claim 2, characterized in that, The flip protection component also includes: Multiple first insertion rods (3) are respectively inserted into the interior of each of the aforementioned fixing frames (201); Multiple second flip heads (301) are respectively fixed to the ends of each of the first plug rods (3), and the second flip heads (301) are respectively rotatably connected to each of the sliding tables (202); Multiple first springs (302) are respectively fixed between each of the first plug rods (3) and the corresponding fixing frame (201).

4. A combined conveyor platform with fall emergency protection according to claim 2, characterized in that, The flip protection component also includes: Multiple second plug-in rods (4) are respectively connected to the top of each of the first flip heads (205); Multiple sets of first limiting pins (401), a number of first limiting pins (401) are grouped together, a single first limiting pin (401) is arranged in a ring, and the first limiting pins (401) in the same group are arranged in a vertical linear array. Each set of first limiting pins (401) is fixed to the outer wall of each second plug rod (4). Multiple sets of second limiting pins (402) are provided. Several second limiting pins (402) are grouped together. A single second limiting pin (402) is arranged in a ring. The second limiting pins (402) in the same group are arranged in a vertical linear array. Each group of second limiting pins (402) is fixed inside the insertion slot of each of the flipping tracks (2). The first limiting pin (401) is adapted to the second limiting pin (402).

5. A combined conveyor platform with fall emergency protection according to claim 4, characterized in that, The flip protection component also includes: Multiple telescopic rods (5) are respectively inserted into the bottom of each of the second plug rods (4), and the bottoms are respectively rotatably connected to each of the first flip heads (205); Multiple second springs (501) are respectively fixed between each of the telescopic rods (5) and the corresponding second plug rods (4); Multiple sets of first clearance ports (502), multiple first clearance ports (502) form a group, and the first clearance ports (502) in the same group are arranged in a circular array and pass through the second limiting pin (402) in the same group. Multiple sets of second clearance ports (503), multiple second clearance ports (503) form a group, and the second clearance ports (503) in the same group form a circular array that passes through the first limiting pin (401) in the same group. A drive unit, mounted on the base (103), is used to drive each of the telescopic rods (5) to rotate.

6. A combined conveyor platform with fall emergency protection according to claim 5, characterized in that, The driving component includes: Multiple first bevel gears (601) are respectively fixed to the bottom of each of the telescopic rods (5); Multiple second bevel gears (602) are rotatably mounted inside each of the first flipping heads (205), and the second bevel gears (602) mesh with the corresponding first bevel gears (601); Multiple first gears (603) are coaxially fixed to each of the second bevel gears (602); Multiple first racks (604) are fixed to the edge of the base (103) and respectively mesh with each of the first racks (604).

7. A combined conveyor platform with fall emergency protection according to claim 5, characterized in that, The flip protection component also includes: Multiple sets of second gears (7) are arranged in a group. Each set of second gears (7) is installed in a linear array inside each of the flipping tracks (2). The outer wall of the shaft of each second gear (7) is provided with a friction layer. Multiple second racks (701) are fixed to the side walls of each of the sliding tables (202), and the second racks (701) mesh with the second gear (7).

8. A combined conveyor platform with fall emergency protection according to claim 7, characterized in that, The flip protection component also includes: Multiple one-way bearings (8) are respectively installed between the shaft end of each of the second gears (7) and the flipping track (2); Multiple rotating disks (801) are respectively fixed to the ends of the one-way bearing (8) and rotatably mounted inside the flipping track (2); Multiple limiting ports (802) are respectively opened at the ends of each of the rotating disks (801); Multiple connecting frames (804) are slidably installed inside each of the flipping tracks (2), and multiple third limiting pins (803) that are adapted to the limiting port (802) are fixed on the side wall of each connecting frame (804). The linkage is installed between the connecting frame (804) and the second insertion rod (4) and is used to drive the connecting frame (804) to move when the flip track (2) flips so that each of the third limiting pins (803) is inserted into the respective limiting port (802).

9. A combined conveyor platform with fall emergency protection according to claim 8, characterized in that, The linkage includes: Multiple third plug rods (9) are fixed to the top of each of the second plug rods (4), and the tops are respectively inserted into the bottom of each of the connecting frames (804); Multiple ends (901) are fixed to the top of each of the third plug rods (9), and each side wall is provided with a guide opening (902). Multiple guide rails (903) are respectively fixed inside the insertion slots at the bottom of each of the connecting brackets (804), and the guide rails (903) are adapted to the guide ports (902); Multiple sets of third springs (904), two of the third springs (904) form a group, and the third springs (904) in the same group are respectively fixed to the top and bottom of the bottom insertion slot of the connecting frame (804).

10. A protection control method for a combined conveyor platform with fall emergency protection, applicable to a combined conveyor platform with fall emergency protection as described in any one of claims 1 to 9, characterized in that, The control method includes the following steps: Step 1: The control unit acquires overweight information from the weight sensor (105), which is generated by the weight sensor (105) when it detects that the weight of the material exceeds a set threshold. Step 2: The control unit generates protection control information based on the overweight information, and the protection control information is used to control the activation of the flip protection component; Step 3: The control unit sends the protection control information to the flip protection component to control the flip protection component to start flipping and narrowing the falling space of the conveyor platform (1) and provide emergency fall protection for the conveyor platform (1) when it falls.

Images