Material lifting platform with automatic limiting control function

Abstract

The invention relates to the technical field of lifting platforms, in particular to a material lifting platform with an automatic limiting control function, which comprises a base, a support cylinder and a lifting platform, the support cylinder is fixedly mounted above the base, and the lifting platform is mounted in the support cylinder; the lifting platform vertically moves by extruding the adjusting rod, the other end of the vertically-moving adjusting rod oppositely and vertically moves under the action of the fixing cylinder, the vertically-moving adjusting rod drives the supporting rod to vertically move, the vertically-moving supporting rod drives the adjusting block to rotate through the rotating block, and the adjusting block is driven by the rotating block to rotate. The rotating adjusting block drives the rotating gear to rotate, the rotating rotating gear drives the lifting rod to vertically move through the rack, the vertically-moving lifting rod drives the supporting table to vertically move, and therefore the vertically-moving supporting table drives materials to ascend and descend.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting platforms, and in particular to a material lifting platform with automatic limit control. Background Art

[0002] Material lifting platforms are widely used in industrial production and warehousing logistics for vertical transportation of materials between different heights. Limit control technology plays a vital role in this process, mainly through limit switches, sensors, mechanical devices and electrical control equipment to ensure that the lifting and lowering movement of the platform does not exceed the safety range to prevent equipment damage and personal injury.

[0003] Traditional lifting platforms are prone to unstable operation due to lateral deviation, which may lead to tilting, shaking, and even the risk of structural damage. The lack of symmetrical distribution in the design of the lifting rod will cause uneven force on the platform, thereby shortening the service life of the equipment or increasing safety hazards. Traditional equipment usually requires more manual adjustments, which increases the difficulty of operation and labor intensity, and reduces work efficiency. Due to the lack of automatic limit control, the position often needs to be checked and adjusted repeatedly during the lifting process, which is time-consuming and prone to inaccurate adjustments. After long-term use, the high friction between components will increase wear and require frequent replacement or maintenance. In addition, manual lubrication will lead to uneven lubrication, which will cause local wear or early failure, and waste time.

[0004] In view of the above situation, in order to overcome the above technical problems, the present invention designs a material lifting platform with automatic limit control to solve the above technical problems. Summary of the invention

[0005] The technical purpose to be achieved by the present invention is: the material lifting platform of the present invention realizes lifting and lowering by vertical movement of the adjustment rod, ensuring that the support rod moves only in the vertical direction to avoid lateral deviation. The isosceles trapezoidal limit groove of the adjustment block evenly distributes the pressure and effectively distributes the lubricating liquid in combination with the textile material; the support rod provides a self-recovery function through the recovery spring and U-shaped design to ensure stability.

[0006] In order to achieve the above technical objectives, the present invention provides the following technical solutions: The present invention provides a material lifting platform with automatic limit control, comprising a base, a support cylinder and a lifting platform, wherein the support cylinder is fixedly installed above the base, and the lifting platform is installed inside the support cylinder; the lifting platform moves vertically by squeezing an adjusting rod, and the other end of the adjusting rod that moves vertically performs an opposite vertical movement under the action of the fixed cylinder, the vertically moving adjusting rod drives the supporting rod to move vertically, the vertically moving supporting rod drives the adjusting block to rotate through the rotating block, the rotating adjusting block drives the rotating gear to rotate, the rotating rotating gear drives the lifting rod to move vertically through the rack, the vertically moving lifting rod drives the supporting platform to move vertically, and the vertically moving supporting platform drives the material to be lifted and lowered.

[0007] The design of the fixed cylinder and the adjustment rod ensures that the movement of the support rod is strictly limited to the vertical direction during the lifting process, avoiding device failure or safety hazards caused by lateral deviation. The automatic limit mechanism reduces the dependence on manual operation, and the lifting platform can complete the lifting task more efficiently and safely. The adjustment rod transmits the force to the support rod through the fixed cylinder, and then completes the lifting function through the rotating block, the adjustment block and the gear. And through the multi-stage transmission design, the applied force is fully utilized to reduce the labor intensity of the operator. The combined design of the support cylinder and the fixed cylinder ensures the stable movement of the lifting platform and reduces the wear and shaking in long-term use. The lubrication part reduces the friction between the parts, which helps to improve the service life and working reliability of the equipment. The integrated design of the lifting function and the lubrication function enables the equipment to automatically lubricate the moving parts while lifting the material, thereby improving the operating efficiency. The material lifting operation can be completed by pressing the adjustment rod, which reduces the cumbersome manual adjustment steps and improves the operation safety. It is suitable for industrial production lines, warehousing and transportation, and scenes where frequent material lifting is required.

[0008] The lifting platform includes a lifting rod, a support platform, a fixed rod, a rotating gear, a support rod and a limiting cylinder. Two lifting rods are installed on the upper surface of the base. The two lifting rods are symmetrically arranged along the center line of the base, and a rack is fixedly installed on the inner side of one of the lifting rods. A support platform is fixedly installed on the two lifting rods, a fixed rod is vertically installed between the two lifting rods, a rotating gear is installed on the fixed rod, two support rods are installed on the lower right side of the rotating gear, a limiting cylinder is installed on the support rod, a limiting rod is fixedly installed on the side of the limiting cylinder, and the other end of the limiting rod is fixedly installed on the support cylinder.

[0009] The two lifting rods are arranged symmetrically along the center line of the base, forming a good structural balance, improving the stability of the lifting platform during operation, and effectively avoiding the problem of tilting or shaking caused by uneven force on one side. The two lifting rods jointly bear the weight of the support platform, so that the entire lifting platform can operate safely and stably. The support rod can only move in the vertical direction due to the limitation of the limit cylinder and the limit rod, which effectively avoids lateral deviation and improves the accuracy of lifting. The fixed rod vertically connects the two lifting rods, further enhancing the stability of the structure, and at the same time provides support for the rotating gear to avoid deformation during operation. The rack is fixed on the inside of the lifting rod, and cooperates with the rotation of the rotating gear to transmit power to the lifting rod, driving the support platform to rise and fall smoothly. The rotating gear not only connects the power source, but also acts as the core component of force transmission between the rack and the lifting rod, which simplifies the structural design and improves the energy utilization efficiency. Each functional component is relatively independent, which is convenient for subsequent disassembly and maintenance. The size and load-bearing capacity of the support platform and the lifting rod can be adjusted according to specific needs, making the equipment highly adaptable.

[0010] The fixing rod begins to have a liquid inlet hole, the right end of the liquid inlet hole is connected to the storage hole, and two outlet slots are provided on the fixing rod on the right side of the storage hole, and the outlet slots are symmetrically arranged at the upper end of the fixing rod.

[0011] The inlet hole on the fixed rod is connected to the storage hole to ensure that the lubricant can be supplied continuously, forming an efficient lubrication circulation device. The two outlet slots are arranged symmetrically, which can evenly distribute the lubricant to ensure that the lubrication effect of the components on the fixed rod is fully covered and avoid local wear. The lubricant reaches the inside of the adjustment block through the outlet slot, significantly reducing the friction between the components and improving the running stability of the equipment. Continuous lubrication reduces the wear and heat accumulation of the components, thereby extending the service life of the entire equipment. The two outlet slots are arranged symmetrically to ensure that the lubricant is evenly distributed and avoid operation blockage or component damage caused by insufficient lubrication on one side. The symmetrical liquid outlet design covers the key movement area at the top of the fixed rod to improve lubrication efficiency. The inlet hole on the fixed rod enables operators to easily replenish the lubricant without frequent disassembly and assembly of the equipment. The lubrication equipment is integrated in the fixed rod, takes up less space, and is more convenient for maintenance and cleaning. The timely supply of lubricant reduces the dry grinding phenomenon caused by lack of lubrication of key components during high-load operation, avoiding equipment failure or safety accidents. The lubricant not only reduces friction, but also helps dissipate heat to a certain extent, improving the reliability of equipment operation.

[0012] An adjusting block is fixedly installed on the right side of the rotating gear, and a limiting groove is arranged in an array on the adjusting block, and the cross-sectional shape of the limiting groove is an isosceles trapezoid.

[0013] The isosceles trapezoidal shape of the limit groove can evenly distribute the pressure when it is stressed, avoiding local stress concentration caused by a single stress point, thereby improving the stability and durability of the adjustment block under high load conditions. The trapezoidal structure can provide a certain lateral support force better than the rectangular groove, making the moving parts more stable during operation, and helping to prevent the adjustment block from loosening due to movement or vibration. The limit groove can effectively guide the movement trajectory of the adjustment block, ensuring that the adjustment block follows the designed path during operation without offset or malfunction, thereby improving the operation accuracy of the entire device. The array arrangement of multiple limit grooves can provide multi-point positioning support for the adjustment block, allowing it to maintain a stable state at different positions, thereby improving the flexibility and reliability of equipment operation. The array-distributed limit grooves provide multiple fixed positions, allowing the adjustment block to be flexibly adjusted to a suitable position according to different operating requirements. The isosceles trapezoidal limit groove can adapt to the contact surfaces of components of various shapes and sizes, has good versatility, and is suitable for different equipment and working conditions. The isosceles trapezoidal groove can reduce the loss or accidental wear caused by excessive friction of the adjustment block while providing sufficient support, further improving the operating safety of the equipment.

[0014] The corners of the outer periphery of the adjustment block are made of textile material, the middle array of the adjustment block is provided with triangular grooves, and the corners of the outer periphery of the triangular grooves are connected to the textile material of the outer periphery of the adjustment block, and the triangular grooves are connected to the outlet grooves. The textile material of the outer periphery of the adjustment block can absorb and store the lubricating fluid flowing out of the outlet grooves, and evenly distribute it in the key parts of the adjustment block, effectively reducing friction.

[0015] The triangular groove is connected with the outlet groove to form a lubricating liquid delivery channel, ensuring that the liquid can be accurately delivered to the area covered by the textile material, improving lubrication efficiency and reducing waste. Soft textile materials can reduce direct contact friction between hard parts and play a role in buffering and protection. The lubricating liquid is introduced into the contact area of ​​the parts covered by the textile material through the triangular groove, effectively reducing part wear and extending the life of the equipment. The textile material absorbs vibration and mechanical shock during operation, ensuring that the equipment runs more smoothly and improving overall performance. Continuous lubrication and flexible buffering effectively prevent the jamming caused by dry friction or vibration between parts and improve operational reliability. The textile material covers the outer corners of the adjustment block to reduce the noise generated when the hard material contacts and collides, significantly improving the quietness of the equipment operation. The triangular groove design effectively collects and guides the lubricating liquid by connecting the outlet groove, so that it can be fully utilized and reduce waste. The textile material can retain the lubricating liquid for a long time, ensuring the continuity of the lubrication effect and reducing the need for frequent replenishment of the lubricating liquid. The combination design of the triangular groove and the textile material is suitable for a variety of industrial scenarios and different equipment requirements, and has good versatility. When the textile material is worn or the adsorption capacity decreases, it can be quickly replaced with low maintenance costs. The lubricant is absorbed by the textile material and fixed in key locations, reducing liquid spillage or equipment surface contamination and keeping the equipment clean. The combination of the textile material and the triangular groove ensures that the lubricant is delivered to the right place, avoiding equipment failure or accidents caused by dry friction.

[0016] An extrusion cylinder is installed directly below the adjusting block, an extrusion spring is installed inside the extrusion cylinder, the lower end of the extrusion spring is clamped on the base, the upper end of the extrusion spring is clamped on the extrusion block, the cross-section of the upper end of the extrusion block is arc-shaped, and the upper end of the extrusion block is located in the limiting groove.

[0017] The extrusion spring provides elastic support, which can effectively absorb the impact caused by external force, and automatically reset after the external force is removed, ensuring the stability and reliability of the equipment operation. The close fit between the limit slot and the extrusion block effectively avoids the problem of stagnation in the movement of the components, thereby improving the overall performance of the adjustment block. The extrusion spring can absorb the impact force caused by load changes or movement during the operation of the equipment, reducing the impact damage to other parts of the equipment. The spring buffer reduces the possibility of hard-to-hard contact, prolongs the service life of the equipment, and reduces the potential danger to the operator. The cooperation of the arc-shaped extrusion block and the spring can effectively reduce the wear of the components caused by the friction of movement and improve the durability of the equipment. The spring and the extrusion block relieve the pressure directly acting on the base and the limit slot, reducing the long-term loss of these fixed parts. The elastic design of the extrusion spring and the extrusion block enables the equipment to adapt to different load and pressure requirements, increasing the versatility of the equipment. The arc-shaped extrusion block can adaptively distribute the pressure and adapt to irregular or uneven moving surfaces. The extrusion spring and the extrusion block are simple in design, and can be quickly replaced in case of wear or failure, reducing equipment downtime. The extrusion spring can provide a buffer when subjected to excessive pressure, preventing the equipment from being damaged or malfunctioning under extreme conditions. The spring design reduces the effort required for manual operation and improves the convenience and comfort of operation.

[0018] A recovery groove is provided at the lower end of the support rod, a recovery spring is installed inside the recovery groove, the cross-sectional shape of the upper end of the support rod is U-shaped, a rotating rod is installed inside the U-shaped upper end of the support rod, springs are installed at both ends of the rotating rod, a rotating block is installed in the middle of the rotating rod, the cross-sectional shape of the rotating block is "comma"-shaped, and the upper end of the rotating block is located inside the limiting groove.

[0019] The recovery slot and recovery spring design ensure that the support rod can quickly return to its original position after being subjected to external forces. This self-recovery function can provide stability and prevent the equipment from being unbalanced when the load of the equipment changes. The action of the recovery spring enables the support rod to be accurately adjusted to the required position to avoid deviation or deformation, ensuring the stability and accuracy of the equipment during operation. The U-shaped cross-section at the upper end of the support rod increases the contact area with the rotating rod and provides higher stability. The U-shaped structure helps to avoid lateral shaking of the rotating rod and improves the movement accuracy. The springs at both ends of the rotating rod provide continuous elastic force to ensure that the rotating block moves at a precise angle and speed, improving the accuracy and responsiveness of the equipment. The "comb"-shaped cross-section of the rotating block can effectively move in the limit slot, making the rotation smoother and more stable. This shape reduces friction resistance and can quickly adapt to different load conditions. The elastic action of the recovery spring can absorb part of the energy when the support rod is impacted or pressed, thereby reducing the mechanical loss of the equipment and extending the service life. The "comb"-shaped design of the rotating block helps to reduce friction between the limit slot, reduce wear, and improve the durability of the equipment. The U-shaped support rod and the "funny"-shaped rotating block are compactly designed, making the overall structure occupy less space, while improving the force transmission efficiency and movement accuracy, and reducing the size of the equipment. Through reasonable accessory selection and wear-resistant design, the durability of the rotating equipment is improved and the service life of the equipment is extended. The coordination of the spring and the rotating rod makes it difficult for the movement of the equipment to get stuck or require excessive external force during operation, reducing the labor intensity of the operator.

[0020] A rotation groove is provided on the side of the support rod, an adjustment cylinder is installed inside the rotation groove, an adjustment rod is installed on the adjustment cylinder, the cross-sectional shape of the adjustment rod is S-shaped, a fixed cylinder crosses the adjustment rod, both ends of the fixed cylinder are fixed inside the support cylinder, and the cross-sectional shape of the other end of the adjustment rod is a right-angled trapezoid.

[0021] The S-shaped cross-section design of the adjustment rod provides greater flexibility and adaptability, allowing the adjustment rod to effectively cope with changes in different loads or angles during the adjustment process, improving the accuracy and stability of the adjustment equipment. The S-shaped design allows the adjustment rod to smoothly transition between different positions, improving the flexibility of equipment adjustment, and is particularly suitable for occasions that require frequent adjustment. The two ends of the fixed cylinder are fixed inside the support cylinder, ensuring the stability and rigidity of the entire adjustment equipment. This structural design can effectively withstand external impacts and loads and prevent the equipment from deforming or loosening. Since the fixed cylinder inside the support cylinder provides additional support, the possible bending or twisting of the adjustment rod is reduced, and the bearing capacity of the overall structure is improved. The design of the rotating groove and the adjustment cylinder allows the adjustment cylinder to move smoothly in the rotating groove, reducing friction resistance and improving movement efficiency. The right-angle trapezoidal design at the other end of the adjustment rod can accurately match the support component, reduce position error, ensure that the equipment can accurately reach the required position during adjustment, and avoid equipment failure or accuracy deviation caused by position error. The right-angle trapezoidal design enables more subtle adjustments during the adjustment process, improving the accuracy and responsiveness of the overall equipment. The combination of the rotating groove and the adjusting cylinder reduces the friction and noise during the rotation process, ensuring that the equipment is quieter during operation, especially suitable for occasions with strict requirements on noise. The structural design of the adjusting cylinder and the adjusting rod effectively reduces the friction during movement and the direct contact between parts, thereby extending the service life of the equipment.

[0022] The beneficial effects of the present invention are as follows: 1. The ingenious design of the fixed cylinder and the adjusting rod ensures that the support rod moves strictly in the vertical direction during the lifting process, effectively avoiding device failure or safety hazards caused by lateral deviation. The automatic limit mechanism reduces the dependence on manual operation, allowing the lifting platform to complete the lifting task more efficiently and safely. The adjusting rod transmits force to the support rod through the fixed cylinder, and realizes precise lifting function through the rotating block, adjusting block and gear.

[0023] 2. The support rod can only move in the vertical direction under the restriction of the limit tube and the limit rod, which effectively prevents lateral deviation and improves the accuracy of the lifting process. The fixed rod vertically connects the two lifting rods, further enhancing the stability of the overall structure, while providing reliable support for the rotating gear to avoid deformation caused by operating force. The rack is fixed on the inside of the lifting rod and cooperates with the rotation of the rotating gear to efficiently transmit power to the lifting rod, driving the support platform to achieve smooth lifting.

[0024] 3. The inlet hole on the fixed rod is connected to the storage hole to ensure the continuous supply of lubricating liquid and form an efficient lubrication circulation system. The two symmetrically arranged liquid outlet grooves evenly distribute the lubricating liquid, fully covering the lubrication area of ​​the components on the fixed rod, effectively avoiding local wear.

[0025] 4. The "comb"-shaped rotating block design further reduces the friction between the limit groove, reduces wear, and significantly improves the durability of the equipment. The compact design of the U-shaped support rod and the "comb"-shaped rotating block not only improves the force transmission efficiency and motion accuracy, but also effectively reduces the size of the equipment and saves space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 It is an overall schematic diagram of the present invention; Figure 2 is an overall cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the lifting platform of the present invention; Figure 4 is a schematic diagram of a fixing rod of the present invention; Figure 5 is a schematic diagram of a rotating gear of the present invention; Figure 6 It is a schematic diagram of an extrusion cylinder of the present invention.

[0028] In the figure: 1. base; 2. support cylinder; 3. lifting platform; 31. lifting rod; 311. rack; 32. support platform; 33. fixed rod; 331. liquid inlet hole; 332. storage hole; 333. outlet slot; 34. rotating gear; 341. adjusting block; 342. limiting slot; 343. triangular slot; 344. extrusion cylinder; 345. extrusion spring; 346. extrusion block; 35. support rod; 351. recovery slot; 352. recovery spring; 353. rotating rod; 354. spring; 355. rotating block; 356. rotating slot; 257. adjusting cylinder; 358. adjusting rod; 359. fixed cylinder; 36. limiting cylinder; 361. limiting rod. DETAILED DESCRIPTION

[0029] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 , 2As shown in , 3, 4, 5 and 6, the present invention provides a material lifting platform with automatic limit control, including a base 1, a support cylinder 2 and a lifting platform 3, wherein the support cylinder 2 is fixedly installed above the base 1, and the lifting platform 3 is installed inside the support cylinder 2; the lifting platform 3 moves vertically by squeezing the adjusting rod 358, and the vertically moving adjusting rod 358 performs an opposite vertical movement at the other end of the adjusting rod 358 under the action of the fixed cylinder 359, the vertically moving adjusting rod 358 drives the support rod 35 to move vertically, the vertically moving support rod 35 drives the adjusting block 341 to rotate through the rotating block 355, the rotating adjusting block 341 drives the rotating gear 34 to rotate, the rotating rotating gear 34 drives the lifting rod 31 to move vertically through the rack 311, the vertically moving lifting rod 31 drives the support platform 32 to move vertically, and the vertically moving support platform 32 drives the material to be lifted and lowered.

[0031] Through the ingenious design of the fixed cylinder 359 and the adjusting rod 358, the support rod 35 is ensured to move strictly in the vertical direction during the lifting process, effectively avoiding the device failure or safety hazards that may be caused by lateral deviation. The automatic limit mechanism reduces the dependence on manual operation, so that the lifting platform can complete the lifting task more efficiently and safely. The adjusting rod 358 transmits the force to the support rod 35 through the fixed cylinder 359, and realizes the precise lifting function through the rotating block 355, the adjusting block 341 and the gear. The multi-stage transmission design makes full use of the applied force, which not only improves the work efficiency, but also significantly reduces the labor intensity of the operator. The combined design of the support cylinder 2 and the fixed cylinder 359 ensures the stable operation of the lifting platform 3 and reduces the wear and shaking in long-term use. The addition of the lubrication device effectively reduces the friction between the parts and further improves the service life and operation reliability of the equipment. The integrated design of the lifting function and the lubrication function enables the equipment to automatically lubricate the moving parts while lifting the material, thereby improving the operation efficiency. The operation mode has also been optimized. You only need to press the adjustment lever 358 to complete the lifting of materials, which greatly simplifies the cumbersome manual adjustment steps and significantly improves the convenience and safety of operation. This design is particularly suitable for industrial production lines, warehousing and transportation, and scenes where frequent material lifting is required.

[0032] like Figure 2 , 3As shown in , 4, 5 and 6, the lifting platform 3 includes a lifting rod 31, a support platform 32, a fixed rod 33, a rotating gear 34, a support rod 35 and a limiting cylinder 36. Two lifting rods 31 are installed on the upper surface of the base 1. The two lifting rods 31 are symmetrically arranged along the center line of the base 1, and a rack 311 is fixedly installed on the inner side of one of the lifting rods 31. A support platform 32 is fixedly installed on the two lifting rods 31. A fixed rod 33 is vertically installed between the two lifting rods 31. A rotating gear 34 is installed on the fixed rod 33. Two support rods 35 are installed on the lower right side of the rotating gear 34. A limiting cylinder 36 is installed on the support rod 35. A limiting rod 361 is fixedly installed on the side of the limiting cylinder 36, and the other end of the limiting rod 361 is fixedly installed on the support cylinder 2.

[0033] The two lifting rods 31 are arranged symmetrically along the center line of the base 1, forming a good structural balance, effectively improving the stability of the lifting platform 3 during operation, and avoiding the problem of tilting or shaking caused by uneven force on one side. The two lifting rods 31 share the weight of the support platform 32 to ensure that the entire lifting platform can operate safely and stably. The support rod 35 can only move in the vertical direction under the restriction of the limit cylinder 36 and the limit rod 361, thereby effectively preventing lateral deviation and improving the accuracy of the lifting process. The fixed rod 33 vertically connects the two lifting rods 31, further enhancing the stability of the overall structure, and at the same time provides reliable support for the rotating gear 34 to avoid deformation caused by operating force. The rack 311 is fixed to the inner side of the lifting rod 31, and cooperates with the rotational movement of the rotating gear 34 to efficiently transmit power to the lifting rod 31, driving the support platform 32 to achieve smooth lifting. As the core component connecting the power source, the rotating gear 34 acts as a key bridge for force transmission between the rack 311 and the lifting rod 31, which not only simplifies the structural design, but also significantly improves the energy utilization efficiency. Each functional component is designed to be relatively independent, which is convenient for subsequent disassembly and maintenance. The size and load-bearing capacity of the support platform 32 and the lifting rod 31 can be adjusted according to specific needs, so that the device has strong adaptability and can meet the use requirements of various scenarios.

[0034] like Figure 2 , 3 As shown in FIG4 , the fixed rod 33 has a liquid inlet hole 331 , the right end of the liquid inlet hole 331 is connected to the storage hole 332 , and two outlet slots 333 are provided on the fixed rod 33 on the right side of the storage hole 332 , and the outlet slots 333 are symmetrically arranged at the upper end of the fixed rod 33 .

[0035] The inlet hole 331 on the fixed rod 33 is connected to the storage hole 332 to ensure that the lubricant can be continuously supplied to form an efficient lubrication circulation system. The two symmetrically arranged liquid outlet grooves evenly distribute the lubricant, fully cover the lubrication area of ​​the components on the fixed rod 33, and effectively avoid local wear. The lubricant flows into the adjustment block 341 through the liquid outlet groove, greatly reducing the friction between the components and significantly improving the stability of the equipment operation. Continuous lubrication not only reduces the wear and heat accumulation of the components, but also effectively extends the service life of the equipment. The symmetrically designed liquid outlet groove ensures that the lubricant is evenly distributed, avoiding operation blockage or component damage caused by insufficient lubrication on one side. The layout of the liquid outlet groove covers the key movement area at the top of the fixed rod 33, further improving the lubrication efficiency. The design of the liquid inlet hole 331 on the fixed rod 33 makes it easy for operators to easily replenish the lubricant without frequent disassembly and assembly of the equipment, simplifying the maintenance process. The lubrication equipment is integrated into the fixed rod 33, occupying a small space, which not only saves equipment space, but also makes cleaning and maintenance more convenient. The continuous supply of lubricating fluid effectively prevents dry grinding of key components due to lack of lubrication during high-load operation, thereby avoiding equipment failure or safety accidents. In addition, lubricating fluid not only reduces friction, but also plays a role in heat dissipation to a certain extent, further improving the reliability of equipment operation.

[0036] like Figure 5 and 6 As shown, an adjustment block 341 is fixedly installed on the right side of the rotating gear 34 , and a limiting groove 342 is arranged in an array on the adjustment block 341 . The cross-sectional shape of the limiting groove 342 is an isosceles trapezoid.

[0037] The isosceles trapezoidal limiting groove 342 can evenly distribute the pressure when stressed, avoid local stress concentration caused by a single stress point, and thus improve the stability and durability of the adjustment block 341 under high load conditions. Compared with the rectangular groove, the trapezoidal structure can provide stronger lateral support, making the moving parts more stable during operation, and effectively preventing the adjustment block 341 from loosening due to movement or vibration. The limiting groove 342 can also effectively guide the movement trajectory of the adjustment block 341, ensuring that it runs according to the designed path, avoiding deviation or malfunction, thereby improving the operation accuracy of the entire device. Multiple limiting grooves 342 are arranged in an array, providing multi-point positioning support for the adjustment block 341, so that it can maintain a stable state at different positions, significantly improving the operational flexibility and reliability of the equipment. The array-distributed limiting grooves 342 also provide multiple fixed positions, so that the adjustment block 341 can be flexibly adjusted to the most suitable position according to different operation requirements. The isosceles trapezoidal limiting groove 342 is suitable for the contact surfaces of parts of various shapes and sizes, has good versatility, and can meet the needs of different equipment and working conditions. While providing sufficient support, the trapezoidal groove design can also reduce excessive friction between the adjustment block 341 and the groove wall, thereby reducing the risk of loss and accidental wear, and further improving the operating safety and service life of the equipment.

[0038] like Figure 5 and 6 As shown, the corners of the outer periphery of the adjustment block 341 are composed of textile materials, the middle array of the adjustment block 341 is provided with triangular grooves 343, and the corners of the outer periphery of the triangular grooves 343 are connected to the textile materials of the outer corners of the adjustment block 341, and the triangular grooves 343 are connected to the outlet grooves 333. The textile materials of the outer periphery of the adjustment block 341 can absorb and store the lubricating liquid flowing out of the outlet grooves 333, and evenly distribute it in the key parts of the adjustment block 341, effectively reducing friction. The triangular grooves 343 are connected to the outlet grooves 333 to form an efficient lubricating liquid delivery channel, ensuring that the lubricating liquid can be accurately delivered to the area covered by the textile material, thereby improving lubrication efficiency and reducing waste. The soft textile material can effectively reduce the direct contact friction between hard parts, and at the same time play a role of buffer protection. The lubricating liquid is introduced into the contact area of ​​the parts covered by the textile material through the triangular grooves 343, which significantly reduces the wear of the parts and prolongs the service life of the equipment. The textile material can absorb vibration and mechanical shock during operation, ensuring that the equipment runs more smoothly and improves the overall performance. The combination of continuous lubrication and flexible buffering effectively prevents the jamming of components caused by dry friction or vibration, thereby significantly improving the reliability of equipment operation. The textile material covering the outer corners of the adjustment block 341 can reduce the noise generated when hard materials come into contact and collide, significantly improving the quietness of equipment operation. The design of the triangular groove 343 can efficiently collect and guide the lubricating liquid by connecting with the outlet groove 333, ensuring full utilization and reducing waste. The textile material has good lubricating liquid adsorption capacity, can maintain the lubrication effect for a long time, and reduces the need for frequent replenishment of lubricating liquid. The combined design of the triangular groove 343 and the textile material is suitable for a variety of industrial scenarios and equipment requirements, and has excellent versatility and adaptability. When the textile material is worn or the adsorption capacity decreases, it can be quickly replaced with low maintenance costs. The lubricating liquid is absorbed and fixed in key parts by the textile material, effectively reducing liquid spillage or equipment surface contamination, and keeping the equipment clean. The coordinated design of the textile material and the triangular groove 343 ensures that the lubricating liquid is accurately delivered, avoids equipment failures or accidents caused by dry friction, and further improves the safety and reliability of equipment operation.

[0039] like Figure 4 , 5 As shown in Figure 6, an extrusion cylinder 344 is installed directly below the adjustment block 341, and an extrusion spring 345 is installed inside the extrusion cylinder 344. The lower end of the extrusion spring 345 is clamped onto the base 1, and the upper end of the extrusion spring 345 is clamped onto an extrusion block 346. The cross-sectional shape of the upper end of the extrusion block 346 is an arc shape, and the upper end of the extrusion block 346 is located in the limiting groove 342.

[0040] The extrusion spring 345 provides elastic support, can effectively absorb the impact caused by external force, and automatically reset after the external force disappears, ensuring the stability and reliability of the equipment operation. The close cooperation between the limit groove 342 and the extrusion block 346 effectively prevents the problem of jamming during the movement of the component, thereby improving the overall performance of the adjustment block 341. The extrusion spring 345 can absorb the impact force caused by load changes or movement during the operation of the equipment, reducing the impact damage to other components. The spring buffer design reduces the risk of hard-to-hard contact, which not only extends the service life of the equipment, but also reduces the potential dangers to the operator. The cooperation between the arc-shaped extrusion block 346 and the spring effectively reduces the wear of the components caused by the friction of the movement, further improving the durability of the equipment. At the same time, this design relieves the pressure directly acting on the base 1 and the limit groove 342, and reduces the long-term loss of the fixed components. The elastic structure of the extrusion spring 345 and the extrusion block 346 enables the equipment to adapt to different load and pressure requirements, thereby enhancing the versatility of the equipment. The arc-shaped extrusion block 346 can adaptively distribute pressure, adapt to irregular or uneven moving surfaces, and improve contact stability. The extrusion spring 345 and the extrusion block 346 have a simple structural design and can be quickly replaced in case of wear or failure, thereby reducing equipment downtime. The extrusion spring 345 can provide a buffer when subjected to excessive pressure to prevent damage or failure of the equipment under extreme conditions. In addition, the spring design reduces the effort required for manual operation, improves the convenience and comfort of operation, and further optimizes the user experience.

[0041] like Figure 3 , 4 As shown in FIGS. 5 and 6 , a recovery groove 351 is provided at the lower end of the support rod 35, a recovery spring 352 is installed inside the recovery groove 351, the cross-sectional shape of the upper end of the support rod 35 is U-shaped, a rotating rod 353 is installed inside the U-shaped upper end of the support rod 35, springs 354 are installed at both ends of the rotating rod 353, a rotating block 355 is installed in the middle of the rotating rod 353, the cross-sectional shape of the rotating block 355 is "comma" shaped, and the upper end of the rotating block 355 is located inside the limiting groove 342.

[0042] The design of the recovery slot 351 and the recovery spring 352 ensures that the support rod 35 can be quickly reset after being acted upon by an external force, providing stability for the operation of the equipment and preventing imbalance problems caused by load changes. The elastic action of the recovery spring 352 enables the support rod 35 to be accurately adjusted to the desired position to avoid deviation or deformation, thereby ensuring the stability and accuracy of the operation of the equipment. The upper end of the support rod 35 adopts a U-shaped cross-section design, which increases the contact area with the rotating rod 353 and significantly improves the stability of the structure. The U-shaped structure also effectively prevents the rotating rod 353 from lateral shaking and improves the movement accuracy. The springs 354 equipped at both ends of the rotating rod 353 can provide continuous elastic force to ensure that the rotating block 355 moves at a precise angle and speed, thereby improving the responsiveness and operating accuracy of the equipment. The "comb"-shaped cross-section of the rotating block 355 optimizes its movement performance in the limit slot 342, making the rotation smoother and having higher stability. This shape design reduces friction resistance, can quickly adapt to different load conditions, and helps to improve the flexibility of the equipment. The restoring spring 352 absorbs part of the energy when the support rod 35 is impacted or pressurized, reducing mechanical loss and extending the service life of the equipment. The design of the "fun"-shaped rotating block 355 further reduces the friction between it and the limit groove 342, reduces wear, and significantly improves the durability of the equipment. The compact design of the U-shaped support rod 35 and the "fun"-shaped rotating block 355 not only improves the force transmission efficiency and movement accuracy, but also effectively reduces the volume of the equipment and saves space. Reasonable accessory selection and the application of wear-resistant materials significantly improve the durability of the equipment and extend its service life. The cooperation between the mainspring 354 and the rotating rod 353 ensures that the equipment is not easy to get stuck during operation, while reducing the need for excessive external force, reducing the labor intensity of operators, and further optimizing the user experience of the equipment.

[0043] like Figure 2 , 3 As shown in Figure 6, a rotation groove 356 is provided on the side of the support rod 35, an adjusting cylinder 257 is installed inside the rotation groove 356, an adjusting rod 358 is installed on the adjusting cylinder 257, the cross-sectional shape of the adjusting rod 358 is S-shaped, a fixed cylinder 359 crosses the adjusting rod 358, both ends of the fixed cylinder 359 are fixed inside the support cylinder 2, and the cross-sectional shape of the other end of the adjusting rod 358 is a right-angled trapezoid.

[0044] The adjustment rod 358 adopts an S-shaped cross-section design, which provides higher flexibility and adaptability, so that it can effectively cope with different loads or angle changes during the adjustment process, and improve the accuracy and stability of the equipment adjustment. The S-shaped design allows the adjustment rod 358 to smoothly transition between different positions, greatly improving the adjustment flexibility, and is particularly suitable for frequent adjustment scenarios. Both ends of the fixed cylinder 359 are firmly installed inside the support cylinder 2 to ensure the stability and rigidity of the entire adjustment device. This design can effectively withstand external shocks and loads and prevent the equipment from being deformed or loosened due to external forces. The fixed cylinder 359 in the support cylinder 2 provides additional support for the adjustment rod 358, effectively reducing possible bending or twisting, and significantly improving the bearing capacity of the overall structure. The matching design of the rotating groove 356 and the adjustment cylinder 257 enables the adjustment cylinder 257 to move smoothly in the rotating groove 356, reducing friction resistance and improving movement efficiency. The other end of the adjustment rod 358 adopts a right-angle trapezoidal design, which precisely matches the support component to reduce position errors, ensure that the equipment can be accurately adjusted, and avoid equipment failures or precision deviations caused by errors. The right-angle trapezoidal design also makes the adjustment process more refined, further improving the accuracy and responsiveness of the device. The optimized cooperation between the rotating groove 356 and the adjusting cylinder 257 not only reduces the friction and noise during the rotation process, but also ensures the quietness of the device operation, which is particularly suitable for occasions with strict requirements on noise control.

[0045] In the working process of the present invention, when the staff puts the material onto the lifting platform 3, the staff presses one end of the right-angled trapezoid of the adjusting rod 358 on the right side, and the adjusting rod 358 drives the support rod 35 to move through the fixing cylinder 359. Under the action of the limiting cylinder 36 and the limiting rod 361, the support rod 35 can only move vertically. The vertically moving support rod 35 drives the rotating block 355 to move vertically, and the vertically moving rotating block 355 pushes the adjusting block 341 to rotate counterclockwise, and the adjusting block 341 is rotated counterclockwise. During the rotation process, the node block 341 will allow the liquid in the storage hole 332 to enter the triangular groove 343 through the outlet groove 333, thereby wetting the textile material at the corner of the adjustment block 341, thereby reducing the friction between the parts and reducing the force applied to the parts. At the same time, the counterclockwise rotating adjustment block 341 drives the rotating gear 34 to rotate, and the rotating rotating gear 34 drives the lifting rod 31 to move vertically through the rack 311. The vertically moving lifting rod 31 drives the support platform 32 to move upward, thereby driving the material to rise.

[0046] When the material needs to be lowered, the staff presses the adjustment rod 358 on the left side, and the adjustment rod 358 drives the fixed cylinder 359 to move vertically, thereby driving the adjustment block 341 to rotate clockwise, and the rotating adjustment block 341 drives the lifting rod 31 to move downward, and the moving lifting rod 31 drives the support platform 32 to move downward, thereby moving the material belt downward.

[0047] The foregoing is merely an excerpt from the disclosure that these modifications may be made to the invention in light of the above detailed description. The terms used in the appended claims should not be construed to limit the invention to the specific embodiments disclosed in the specification. Instead, the scope of the invention will be determined entirely by the appended claims, which will be interpreted in accordance with established principles of claim interpretation.

Claims

1. A material lifting platform with automatic limit control, comprising a base (1), a support tube (2) and a lifting platform (3), characterized in that: A support cylinder (2) is fixedly installed above the base (1), and a lifting platform (3) is installed inside the support cylinder (2); the lifting platform (3) moves vertically by squeezing the adjusting rod (358), and the other end of the adjusting rod (358) moves vertically in the opposite direction under the action of the fixed cylinder (359); the adjusting rod (358) that moves vertically drives the support rod (35) to move vertically, and the vertically moving support rod (35) drives the adjusting block (341) to rotate through the rotating block (355); the rotating adjusting block (341) drives the rotating gear (34) to rotate, and the rotating rotating gear (34) drives the lifting rod (31) to move vertically through the rack (311); the vertically moving lifting rod (31) drives the support platform (32) to move vertically, so that the vertically moving support platform (32) drives the material to be lifted and lowered.

2. A material lifting platform with automatic limit control according to claim 1, characterized in that: The lifting platform (3) comprises a lifting rod (31), a support platform (32), a fixed rod (33), a rotating gear (34), a support rod (35) and a limiting cylinder (36). Two lifting rods (31) are installed on the upper surface of the base (1). The two lifting rods (31) are symmetrically arranged along the center line of the base (1), and a rack (311) is fixedly installed on the inner side of one of the lifting rods (31). The supporting platform (32) is fixedly installed on the two lifting rods (31). A fixed rod (33) is vertically installed between the two lifting rods (31). The rotating gear (34) is installed on the fixed rod (33). Two support rods (35) are installed on the lower right side of the rotating gear (34). A limiting cylinder (36) is installed on the support rod (35). A limiting rod (361) is fixedly installed on the side of the limiting cylinder (36), and the other end of the limiting rod (361) is fixedly installed on the support cylinder (2).

3. A material lifting platform with automatic limit control according to claim 2, characterized in that: The fixed rod (33) begins with a liquid inlet hole (331), the right end of the liquid inlet hole (331) is connected to the storage hole (332), and two outlet slots (333) are provided on the fixed rod (33) on the right side of the storage hole (332), and the outlet slots (333) are symmetrically arranged at the upper end of the fixed rod (33).

4. A material lifting platform with automatic limit control according to claim 3, characterized in that: An adjustment block (341) is fixedly mounted on the right side of the rotating gear (34), and a limiting groove (342) is arranged in an array on the adjustment block (341), and the cross-sectional shape of the limiting groove (342) is an isosceles trapezoid.

5. A material lifting platform with automatic limit control according to claim 4, characterized in that: The outer corners of the adjustment block (341) are made of textile material, the middle array of the adjustment block (341) is provided with triangular grooves (343), and the outer corners of the triangular grooves (343) are connected to the textile material at the outer corners of the adjustment block (341), and the triangular grooves (343) are connected to the outlet grooves (333).

6. A material lifting platform with automatic limit control according to claim 5, characterized in that: An extrusion cylinder (344) is installed directly below the adjustment block (341), and an extrusion spring (345) is installed inside the extrusion cylinder (344). The lower end of the extrusion spring (345) is clamped onto the base (1), and the upper end of the extrusion spring (345) is clamped onto an extrusion block (346). The cross-section of the upper end of the extrusion block (346) is in the shape of an arc, and the upper end of the extrusion block (346) is located in the limiting groove (342).

7. A material lifting platform with automatic limit control according to claim 6, characterized in that: A recovery groove (351) is provided at the lower end of the support rod (35), a recovery spring (352) is installed inside the recovery groove (351), the cross-sectional shape of the upper end of the support rod (35) is U-shaped, a rotating rod (353) is installed inside the U-shaped upper end of the support rod (35), springs (354) are installed at both ends of the rotating rod (353), a rotating block (355) is installed in the middle of the rotating rod (353), the cross-sectional shape of the rotating block (355) is "comma" shaped, and the upper end of the rotating block (355) is located inside the limiting groove (342).

8. A material lifting platform with automatic limit control according to claim 7, characterized in that: A rotation groove (356) is provided on the side of the support rod (35), an adjustment cylinder (257) is installed inside the rotation groove (356), an adjustment rod (358) is installed on the adjustment cylinder (257), the cross-sectional shape of the adjustment rod (358) is S-shaped, a fixing cylinder (359) passes through the adjustment rod (358), both ends of the fixing cylinder (359) are fixed inside the support cylinder (2), and the cross-sectional shape of the other end of the adjustment rod (358) is a right-angled trapezoid.

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