A hydraulic lifting platform with a conveying mechanism

Abstract

The present invention discloses a hydraulic lifting platform with a conveying mechanism, wherein two groups of scissor-type lifting frames are symmetrically installed on the upper surface of the base front and back, and a storage platform is installed on the upper ends of the two groups of scissor-type lifting frames, and a plurality of equally spaced conveying rollers are rotatably installed on the upper surface of the storage platform through a bearing seat, and the plurality of conveying rollers rotate synchronously through sprockets and chains, and the driving motor is installed on the side of the storage platform through a motor frame, and the upper end of the scissor-type lifting frame is installed with a storage platform, a limited seat is fixed under the storage platform, and a limited member is slidably installed left and right under the storage platform, and the limited member is connected to the scissor-type lifting frame; by arranging a blocking structure at the right end of the storage platform and the conveying mechanism, the blocking structure is above the conveying roller during the lifting process of the hydraulic lifting platform, and can block the right end of the conveying roller, thereby effectively preventing the movement of objects during the lifting process, thereby improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic lifts, in particular to a hydraulic lift platform with a conveying mechanism. Background Art

[0002] In some cargo production and processing processes, the cargo will be transported on a conveyor belt. Different processing techniques will cause the height of some conveyor belts to be different. There will be a certain height difference between two adjacent conveyor belts. Usually a hydraulic lift is set between the two conveyor belts, and adjacent conveying structures are set on the hydraulic lift. The cargo is transported from one conveyor belt to the hydraulic lift, and then the hydraulic lift rises to make the conveying structure rise to the same height as the other conveyor belt. After that, the cargo is moved to the conveyor belt again through the conveying structure for transportation.

[0003] Because the hydraulic lift and conveyor mechanism are controlled by two different drive units, a malfunction in the control system could cause the conveyor mechanism to shift cargo during the lift. This could result in the conveyor mechanism starting to deliver cargo before the lift reaches the required height, preventing efficient cargo delivery. To address this, we designed a hydraulic lift with a conveyor mechanism. Summary of the Invention

[0004] The hydraulic lifting platform with a conveying mechanism proposed in the present invention solves the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A hydraulic lifting platform with a conveying mechanism comprises a base, two sets of scissor-type lifting frames are symmetrically mounted on the upper surface of the base, and a storage platform is mounted on the upper ends of the two sets of scissor-type lifting frames. A limit seat is fixed below the storage platform, and a limit member is slidably mounted below the storage platform, and the limit member is connected to the scissor-type lifting frame.

[0007] A plurality of equally spaced conveying rollers are rotatably mounted on the upper surface of the storage platform through a bearing seat, and the plurality of conveying rollers rotate synchronously through sprockets and chains. One of the conveying rollers is connected to the output shaft of a drive motor through a sprocket and a chain, and the drive motor is mounted on the side of the storage platform through a motor frame;

[0008] A barrier structure for limiting objects is installed on the right side surface of the storage table, and a driving mechanism is installed on the lower end surface of the storage table. The driving mechanism includes a downward pressing horizontal plate for driving the barrier structure to move downward, and a locking structure for locking the downward pressing horizontal plate.

[0009] Preferably, a lower translation rod and a fixed rod are rotatably connected between the lower ends of the left and right sides of the two groups of scissor lifts, respectively. The lower translation rod is slidably connected to the left half of the base, and the fixed rod is fixed to the right end of the base. A pair of symmetrically distributed hydraulic cylinders are installed on the fixed rods, and the push rods of the hydraulic cylinders are connected to the lower translation rod;

[0010] An upper translation rod is rotatably inserted between the upper left ends of the two groups of scissor-type lifting frames, and the upper translation rod is slidably connected to the left half of the lower surface of the storage platform, and the upper right end of the scissor-type lifting frame is rotatably connected to the storage platform through an axle pin. The base and the front and rear ends of the left half of the storage platform are penetrated by strip sliding holes, and the upper translation rod and the lower translation rod are respectively slidably placed in the corresponding strip sliding holes, thereby being able to guide and limit the movement of the upper translation rod and the lower translation rod, thereby improving the stability of the scissor-type lifting frame;

[0011] The front and rear ends of the lower translation rod are respectively rotatably mounted with a lower supporting wheel, and the front and rear ends of the upper translation rod are respectively rotatably mounted with an upper supporting wheel. The lower supporting wheel and the upper supporting wheel are respectively in rolling contact with the base and the surface of the storage platform, and can be used to support the scissor-type lifting frame, increase its contact area with the base and the storage platform, and facilitate its lifting.

[0012] Preferably, two moving rails are fixed to the lower surface of the storage platform, and the limiting member includes a moving frame slidably mounted under the two moving rails, a connecting member is fixed to the left side of each of the two moving frames, the connecting member is connected to the upper translation rod, and an unlocking plate is fixed to the right end of the rear moving frame. When the storage platform is raised or lowered, the scissor-type lifting frame will be unfolded or folded accordingly. When the scissor-type lifting frame is unfolded, the upper translation rod will move to the right, and the upper translation rod moving to the right will cause the limiting member to move to the right through the connecting member, and the unlocking plate will gradually approach the locking structure and unlock the locking structure.

[0013] A horizontal plate is fixed at the lower end between the two movable frames, and a lifting rod is inserted into the horizontal plate for sliding up and down. A limit block is fixed on the top of the lifting rod, and a lifting spring is sleeved on the lifting rod. The two ends of the lifting spring are respectively in contact with the horizontal plate and the limit block. The front and rear surfaces of the limit seat are flush with the front and rear surfaces of the limit block. A rectangular opening is opened on the horizontal plate, and the cross-section of the lifting rod is a rectangular structure. The lifting rod slides up and down and is inserted into the rectangular opening, and a circular ring is provided at the bottom end of the lifting rod.

[0014] Preferably, a contact inclined surface is formed by cutting away a portion of the left surface of the limit seat, and a vertical surface is provided on the right surface of the limit seat;

[0015] A lifting slope is formed on the left surface of the limit block, and the left surface of the limit block is vertically arranged to form a limiting surface. When the limit block moves to the right, the lifting slope of the limit block will contact the contact slope of the limit seat and push the limit block to move downward. When the storage platform is at the highest point, the limit block is located on the right side of the limit seat.

[0016] Preferably, the barrier structure includes a longitudinal plate fixed longitudinally to the right end below the storage platform, a plurality of evenly distributed vertical rods are vertically fixed to the longitudinal plate, the vertical rods are slidably sleeved with lifting sleeves, a lifting spring is sleeved on the vertical rods, and the upper and lower ends of the lifting spring are respectively in contact with the lifting sleeve and the longitudinal plate;

[0017] A lifting plate is welded to the right side of the multiple lifting sleeves, and the left surface of the lifting plate is in sliding contact with the right surface of the storage platform. A plurality of evenly distributed barrier columns are integrally formed on the top of the lifting plate. A downward pressure block is welded to the left surface of the lifting plate, and a portion of the downward pressure block is cut away to the left to form a downward pressure inclined surface. The cross-section of the downward pressure block is a right-angled triangle structure, and there is a distance between the bottom end of the lower pressure block and the upper surface of the longitudinal plate, which is greater than the distance between the top of the barrier column and the upper surface of the outer ring of the conveying roller.

[0018] Preferably, a transverse rod is fixed in the air by a support below the storage table, two hanging rings are slidably sleeved on the transverse rod, a downward pressing horizontal plate is fixed at the lower ends of the two hanging rings, a downward pressing wheel is rotatably mounted on the right surface of the downward pressing horizontal plate through an axle pin, a releasing inclined surface is formed at the leftmost end of the downward pressing horizontal plate, and three sets of locking grooves are formed on the front and rear sides of the left end of the downward pressing horizontal plate;

[0019] The lower end of the storage table is fixed with a driving cylinder by screws, and a driving block is installed on the push rod of the driving cylinder. The driving block is connected to the lower pressing cross plate. When the lower pressing cross plate is not locked, the push rod of the driving cylinder is extended to enable the lower pressing cross plate to move to the right along the transverse rod, and the lower pressing wheel will gradually approach the lower pressing block;

[0020] When the lower pressure wheel continues to move to the right, the lower pressure wheel will move along the lower pressure inclined surface. At this time, the lower pressure block will be squeezed downward by the lower pressure wheel, and the lifting plate will move downward along the vertical rod until the lower pressure block contacts the longitudinal plate. At this time, the top of the barrier column is below the outer ring surface of the conveyor roller, and the object on the conveyor roller can be moved to the right and removed under the action of the conveyor roller.

[0021] Preferably, the locking structure includes two guide rods longitudinally fixed to the bottom of the storage platform, and a locking block is slidably sleeved on the guide rods forward and backward, and the two locking blocks are connected as a whole by a straight rod, and a pushing block for unlocking is fixed to the rear side of the locking block on the left side, and the upper surface of the pushing block is under the pressing cross plate. When the pushing block moves forward and backward, it will not contact with the pressing cross plate to cause interference. When the pushing block moves forward and backward, it can drive the two locking blocks to move together, so that the locking blocks can be disengaged from the locking groove, and the pressing cross plate can be unlocked. At this time, the pressing cross plate can move to the right, thereby enabling the lifting plate to move downward;

[0022] A fixing ring is sleeved and fixed on the guide rod, and a locking spring is sleeved on the guide rod. The front and rear ends of the locking spring are respectively connected to the fixing ring and the locking block. The locking spring makes the locking block always have a tendency to move backward. When the push rod of the driving cylinder returns to its original position, the locking block is just in front of the locking groove. When the pushing block is not affected by any external force other than the locking spring, the locking block and the pushing block will move backward under the action of the locking spring and be inserted into the locking groove, thereby locking the downward pressing horizontal plate so that it cannot move, and the lifting plate cannot move downward at this time.

[0023] Preferably, a pushing slope is formed on the cutout portion of the right side surface of the pushing block, and an unlocking slope is designed on the inclined surface of the left side surface of the unlocking plate. When the limit piece is at the rightmost end, the unlocking slope contacts the pushing slope. At this time, the limit block is at the bottom, and the limit block contacts the left end of the pressing horizontal plate. When the pressing horizontal plate moves to the right, the limit block will move upward under the action of the lifting spring, thereby limiting the storage plate. When the pressing horizontal plate moves to the leftmost end, the release slope of the pressing horizontal plate will cause the limit block to move upward. At this time, the limit block is below the limit seat, and the limit piece can move to the left, and the storage platform can be lowered.

[0024] The number of the locking slots is greater than the number of the locking blocks, and the left end of the leftmost locking block has an empty locking slot. The number of locking blocks and locking slots is set according to actual needs, but the number of locking slots is always one more than the number of locking blocks and is located on the left side of the locking block.

[0025] When the downward pressing horizontal plate moves a unit distance to the right (that is, the distance between two adjacent locking grooves), the locking block will be locked into the locking groove under the action of the locking spring, thereby limiting the movement of the downward pressing horizontal plate, making the lifting plate unable to descend, and avoiding the possibility of the lifting plate descending during the lifting process of the storage platform.

[0026] Beneficial effects of the present invention:

[0027] 1. By setting a blocking structure at the right end of the storage platform and the conveying mechanism, the blocking structure is located above the conveying roller during the lifting process of the hydraulic lifting platform, which can block the right end of the conveying roller, thereby effectively preventing the movement of objects during the lifting process, thereby improving safety;

[0028] 2. By setting a limit seat at the lower end of the storage platform and connecting a limit piece to the scissor lift frame, in conjunction with the driving mechanism, when the storage platform rises to the required height and the barrier structure is released, it can limit the lower end of the storage platform, so that the objects cannot fall during the transportation process;

[0029] 3. Connect the limiter and the blocking structure to the driving mechanism respectively. The three cooperate with each other. When the storage platform is raised or lowered, the blocking structure cannot move down to release the blocking. The storage platform can only be raised or lowered when the blocking structure blocks again. The fault tolerance rate is improved because the storage platform can only be raised or lowered when the blocking structure blocks due to a fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic cross-sectional view of a hydraulic lifting platform with a conveying mechanism proposed by the present invention;

[0031] Figure 2 for Figure 1 A schematic diagram of a structure in which no storage table is provided;

[0032] Figure 3 for Figure 1 Schematic cross-sectional view of ;

[0033] Figure 4 for Figure 2 Schematic diagram of the structure of the middle limiter and the driving mechanism;

[0034] Figure 5 for Figure 4 Schematic diagram of the structure of the middle limit member and the limit seat;

[0035] Figure 6 for Figure 3 A in the middle is an enlarged schematic diagram;

[0036] Figure 7 for Figure 2 Structural diagram of the middle partition structure;

[0037] Figure 8 for Figure 4 A structural diagram of the structure obtained in ;

[0038] Figure 9 for Figure 3 Enlarged schematic diagram of point B in the middle.

[0039] Numbers in the figure: 1, base; 2, scissor lift frame; 21, lower translation rod; 22, lower support wheel; 23, fixed rod; 24, upper support wheel; 25, upper translation rod; 3, hydraulic cylinder; 4, storage table; 41, limit seat; 411, contact slope; 42, moving track; 43, limit member; 431, connecting member; 432, moving frame; 433, horizontal plate; 434, lifting rod; 435, lifting spring; 436, limit block; 437, lifting slope; 438, unlocking plate; 439, unlocking slope; 5, conveyor roller; 51, driving motor Machine; 6. Blocking structure; 61. Lifting plate; 611. Lifting sleeve; 62. Blocking column; 63. Pressing block; 631. Pressing slope; 64. Longitudinal plate; 65. Vertical rod; 66. Lifting spring; 7. Driving mechanism; 71. Driving cylinder; 711. Driving block; 72. Pressing horizontal plate; 721. Pressing wheel; 722. Locking groove; 723. Release slope; 73. Locking structure; 731. Guide rod; 732. Locking block; 733. Fixing ring; 734. Locking spring; 735. Pushing block; 736. Pushing slope; 74. Transverse rod. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] Reference Figure 1 - Figure 9 A hydraulic lifting platform with a conveying mechanism includes a base 1, two sets of scissor-type lifting frames 2 are symmetrically installed on the upper surface of the base 1, and a storage platform 4 is installed on the upper ends of the two sets of scissor-type lifting frames 2. A limit seat 41 is fixed below the storage platform 4, and a limit member 43 is installed below the storage platform 4 for sliding left and right. The limit member 43 is connected to the scissor-type lifting frames 2;

[0042] A plurality of equally spaced conveyor rollers 5 are rotatably mounted on the upper surface of the storage platform 4 via a bearing seat. The plurality of conveyor rollers 5 rotate synchronously via sprockets and chains. One of the conveyor rollers 5 is connected to the output shaft of a drive motor 51 via a sprocket and chain. The drive motor 51 is mounted on the side of the storage platform 4 via a motor frame.

[0043] A barrier structure 6 for limiting objects is installed on the right side surface of the storage table 4, and a driving mechanism 7 is installed on the lower end surface of the storage table 4. The driving mechanism 7 includes a downward pressing horizontal plate 72 for driving the barrier structure 6 to move downward, and a locking structure 73 for locking the downward pressing horizontal plate 72.

[0044] Reference Figure 1 - Figure 3The lower translation rod 21 and the fixed rod 23 are respectively rotatably connected between the lower ends of the left and right sides of the two groups of scissor lifts 2. The lower translation rod 21 is slidably connected to the left half of the base 1. The fixed rod 23 is fixed to the right end of the base 1. A pair of symmetrically distributed hydraulic cylinders 3 are installed on the fixed rod 23. The push rods of the hydraulic cylinders 3 are connected to the lower translation rod 21.

[0045] An upper translation rod 25 is rotatably inserted between the upper left ends of the two groups of scissor-type lifting frames 2. The upper translation rod 25 is slidably connected to the left half of the lower surface of the storage platform 4, and the upper right end of the scissor-type lifting frame 2 is rotatably connected to the storage platform 4 through an axle pin. The base 1 and the front and rear ends of the left half of the storage platform 4 are penetrated by strip-shaped sliding holes. The upper translation rod 25 and the lower translation rod 21 are respectively slidably placed in the corresponding strip-shaped sliding holes, thereby being able to guide and limit the movement of the upper translation rod 25 and the lower translation rod 21, thereby improving the stability of the lifting and lowering of the scissor-type lifting frame 2;

[0046] A lower support wheel 22 is rotatably mounted on the front and rear ends of the lower translation rod 21, and an upper support wheel 24 is rotatably mounted on the front and rear ends of the upper translation rod 25. The lower support wheel 22 and the upper support wheel 24 are in rolling contact with the surface of the base 1 and the storage platform 4 respectively, and can be used to support the scissor-type lifting frame 2, increase its contact area with the base 1 and the storage platform 4, and facilitate its lifting.

[0047] Reference Figure 2 - Figure 6 Two movable rails 42 are fixed to the lower surface of the storage platform 4, and the limiting member 43 includes a movable frame 432 slidably installed under the two movable rails 42. A connecting member 431 is fixed to the left side of each of the two movable frames 432. The connecting member 431 is connected to the upper translation rod 25. An unlocking plate 438 is fixed to the right end of the rear movable frame 432. When the storage platform 4 is raised or lowered, the scissor-type lifting frame 2 will be unfolded or folded accordingly. When the scissor-type lifting frame 2 is unfolded, the upper translation rod 25 will move to the right. The upper translation rod 25 moving to the right will move the limiting member 43 to the right through the connecting member 431, and the unlocking plate 438 will gradually approach the locking structure 73 and unlock the locking structure 73.

[0048] A horizontal plate 433 is fixed at the lower end between the two movable frames 432, and a lifting rod 434 is inserted into the horizontal plate 433 for sliding up and down. A limit block 436 is fixed to the top of the lifting rod 434, and a lifting spring 435 is sleeved on the lifting rod 434. The two ends of the lifting spring 435 are respectively in contact with the horizontal plate 433 and the limit block 436. The front and rear surfaces of the limit seat 41 are flush with the front and rear surfaces of the limit block 436. A rectangular opening is provided on the horizontal plate 433, and the cross-section of the lifting rod 434 is a rectangular structure. The lifting rod 434 slides up and down and is inserted into the rectangular opening, and a circular ring is provided at the bottom end of the lifting rod 434. The lifting rod 434 can move up and down in the rectangular opening without deflection, and the design of the circular ring can ensure the maximum rising position of the lifting rod 434, ensuring that the limit block 436 can contact the limit seat 41 and slide downward.

[0049] A contact inclined surface 411 is formed by removing a portion of the left surface of the limiting seat 41, and a vertical surface is provided on the right surface of the limiting seat 41;

[0050] A lifting slope 437 is formed on the left surface of the limit block 436, and the left surface of the limit block 436 is vertically arranged to form a limiting surface. When the limit block 436 moves to the right, the lifting slope 437 of the limit block 436 will contact the contact slope 411 of the limit seat 41 and push the limit block 436 to move downward. When the storage platform 4 is at the highest point, the limit block 436 is located on the right side of the limit seat 41.

[0051] Reference Figure 2 、 Figure 3 、 Figure 7 as well as Figure 8 The barrier structure 6 includes a longitudinal plate 64 fixed longitudinally to the right end below the storage platform 4. A plurality of evenly distributed vertical rods 65 are vertically fixed on the longitudinal plate 64. The vertical rods 65 are slidably sleeved with a lifting sleeve 611. A lifting spring 66 is sleeved on the vertical rods 65. The upper and lower ends of the lifting spring 66 are respectively in contact with the lifting sleeve 611 and the longitudinal plate 64.

[0052] When the lifting plate 61 moves downward, the barrier column 62 can be located below the outer ring surface of the conveyor roller 5, thereby facilitating the object on the conveyor roller 5 to be removed to the right.

[0053] Reference Figure 4 - Figure 9 The lower part of the storage platform 4 is fixed with a transverse rod 74 suspended by a support. Two hanging rings are slidably sleeved on the transverse rod 74. A downward pressing plate 72 is fixed to the lower end of the two hanging rings. A downward pressing wheel 721 is rotatably mounted on the right surface of the downward pressing plate 72 through an axle pin. The leftmost end of the downward pressing plate 72 is cut away to form a release inclined surface 723, and three sets of locking grooves 722 are formed on the front and rear sides of the left end of the downward pressing plate 72.

[0054] When the locking cam 721 is in the unlocked position, the locking cam 721 is in the unlocked position, and the locking cam 721 is in the unlocked position, so that the locking cam 721 is unlocked and the locking cam 722 is unlocked.

[0055] When the downward pressing plate 72 moves to the left, the limit block 436 will move upward under the action of the lifting spring 435. The limit block 436 will be unable to move to the left due to the action of the limit seat 41, and the storage platform 4 will be restricted and unable to move downward.

[0056] When the push rod of the driving cylinder 71 contracts, the lower pressure wheel 721 will move to the left, and the lower pressure wheel 721 will move away from the lower pressure block 63. The lifting spring 66 will push the lifting plate 61 up and stay in place, thereby limiting the object and preventing it from falling off.

[0057] When the latch is in the locked state, the latch will be fixed on the locking cam 732, and the latch will be in the locked state when the latch is in the locked state, so that the latch can be fixed on the locking cam 732 and the locking cam 733 can be fixed on the locking cam 733 to the left of the locking cam 734.

[0058] When the locking cam 732 is in the state of being moved backwards, the locking cam 732 will move in the direction of the left latch being adjusted, and the locking cam 732 will move in the direction of the left latch being adjusted.

[0059] The right side surface of the pushing block 735 is cut away to form a pushing inclined surface 736, and the inclined surface of the left side surface of the unlocking plate 438 is designed to form an unlocking inclined surface 439. When the limit member 43 is at the rightmost end, the unlocking inclined surface 439 contacts the pushing inclined surface 736. At this time, the limit block 436 is at the bottom, and the limit block 436 contacts the left end of the pressing horizontal plate 72. When the pressing horizontal plate 72 moves to the right, the limit block 436 will move upward under the action of the lifting spring 435, thereby limiting the storage plate 4. When the pressing horizontal plate 72 moves to the leftmost end, the release inclined surface 723 of the pressing horizontal plate 72 will cause the limit block 436 to move upward. At this time, the limit block 436 is below the limit seat 41, and the limit member 43 can move to the left, and the storage platform 4 can be lowered.

[0060] The number of locking slots 722 is greater than the number of locking blocks 732, and the left end of the leftmost locking block 732 has an empty locking slot 722. The number of locking blocks 732 and locking slots 722 is set according to actual needs, but the number of locking slots 722 is always one more than the number of locking blocks 732, and is located on the left side of the locking block 732. Figure 9 When the locking plate 730 is in the unlocked position, the locking plate 732 will be locked in the unlocked position, and the locking plate 732 will be locked in the unlocked position when the locking plate 730 is unlocked.

[0061] Working principle: After the goods are transported to the hydraulic lifting platform from the left side, the conveying roller 5 on the storage platform 4 moves the goods to the right under the action of the driving motor 51. After the goods move to the rightmost end of the conveying roller 5 on the storage platform 4, the push rod of the hydraulic cylinder 3 contracts, the scissor lift 2 unfolds and the storage platform 4 rises. During this process, the upper translation rod 25 moves to the right. The upper translation rod 25 moving to the right will cause the limit member 42 to move to the right through the connecting member 431. The unlocking plate 438 will gradually approach the pushing block 735 and move it to the right. When the limit block 436 moves to the right, the lifting inclined surface 437 of the limit block 436 will contact the contact inclined surface 411 of the limit seat 41 and push the limit block 436 to move downward;

[0062] When the storage platform 4 is at the highest point, the upper translation rod 25 moves to the rightmost end. At this time, the limit block 436 is located on the right side of the limit seat 41. At this time, the limit block 436 is at the bottom, and the limit block 436 contacts the left end of the downward pressing horizontal plate 72. The pushing block 735 moves forward and drives the two locking blocks 732 to move together, so that the locking block 732 can disengage the locking groove 722, and the downward pressing horizontal plate 72 is unlocked.

[0063] After that, the push rod of the driving cylinder 71 is extended to enable the downward pressure cross plate 72 to move rightward along the transverse rod 74, and the lower pressure wheel 721 will gradually approach the lower pressure block 63. When the lower pressure wheel 721 continues to move rightward, the lower pressure wheel 721 will move along the downward pressure inclined surface 631. At this time, the lower pressure block 63 will be squeezed downward by the lower pressure wheel 721, and the lifting plate 61 will move downward along the vertical rod 65 until the lower pressure block 63 contacts the longitudinal plate 64. At this time, the top end of the barrier column 62 is below the outer ring surface of the conveyor roller 5. The object on the conveyor roller 5 can be moved rightward to the conveyor belt on the right side under the action of the conveyor roller 5.

[0064] When the downward pressing cross plate 72 moves to the right, the limit block 436 will move upward under the action of the elastic force of the lifting spring 435. At this time, the limit block 436 is engaged with the limit seat 41. The limit block 436 will be unable to move to the left due to the action of the limit seat 41. Since the upper translation rod 25 and the limit block 436 move left and right synchronously, when the limit block 436 cannot move to the left, the upper translation rod 25 cannot move to the left either, so that the storage platform 4 will be restricted and cannot move downward.

[0065] When the push rod of the driving cylinder 71 is retracted, the lower pressure wheel 721 will move leftward along with it, and the lower pressure wheel 721 will move away from the lower pressure block 63. The lifting spring 66 will push the lifting plate 61 up and stay in its original position, thereby limiting the object. When the lower pressure cross plate 72 moves to the leftmost end, the release inclined surface 723 of the lower pressure cross plate 72 will cause the limit block 436 to move downward, so that the limit block 436 is under the limit seat 41. The limit member 43 can move leftward, and the storage platform 4 can be lowered. At this time, the locking block 732 is facing the locking groove 722.

[0066] When the storage platform 4 descends, the lower translation rod 25 moves to the left, the unlocking plate 439 moves away from the pushing block 735, and the locking block 732 will be clamped into the locking groove 722 under the action of the locking spring 734, thereby limiting the movement of the downward pressing cross plate 72, making it impossible for the lifting plate 61 to descend, avoiding the possibility of the lifting plate 61 descending during the lifting process of the storage platform 4.

[0067] By setting a blocking structure 6 at the right end of the storage platform 4 and the conveying mechanism, the blocking structure 6 is located above the conveying roller 5 during the lifting process of the hydraulic lifting platform, which can block the right end of the conveying roller 5, thereby effectively preventing the movement of objects during the lifting process, thereby improving safety;

[0068] By providing a limit seat 41 at the lower end of the storage platform 4, and connecting a limit member 43 to the scissor lift 2, in conjunction with the drive mechanism 7, when the storage platform 4 rises to the required height and the barrier structure 6 is released, it can limit the lower end of the storage platform 4, so that the objects cannot fall during the transportation process;

[0069] The limiting member 43 and the blocking structure 6 are connected to the driving mechanism 7 respectively, and the three cooperate with each other. When the storage table 4 is raised or lowered, the blocking structure 6 cannot move down to release the blocking. The storage table can only be raised or lowered when the blocking structure 6 blocks again. The fault tolerance rate is improved because the storage table 4 is raised or lowered when the blocking structure 6 does not block due to a fault.

[0070] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0071] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0072] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A hydraulic lifting platform with a conveying mechanism, characterized in that: A hydraulic lifting platform with a conveying mechanism comprises a base (1), two groups of scissor-type lifting frames (2) are symmetrically mounted on the upper surface of the base (1), a storage platform (4) is mounted on the upper ends of the two groups of scissor-type lifting frames (2), a limiting seat (41) is fixed below the storage platform (4), and a limiting member (43) is slidably mounted below the storage platform (4), and the limiting member (43) is connected to the scissor-type lifting frames (2); The upper end surface of the storage platform (4) is rotatably mounted with a plurality of equally spaced conveying rollers (5) via a bearing seat, and the plurality of conveying rollers (5) rotate synchronously via sprockets and chains, one of the conveying rollers (5) is connected to the output shaft of a drive motor (51) via a sprocket and a chain, and the drive motor (51) is mounted on the side of the storage platform (4) via a motor frame; A barrier structure (6) for limiting the position of objects is installed on the right side surface of the storage platform (4), and a driving mechanism (7) is installed on the lower end surface of the storage platform (4). The driving mechanism (7) includes a downward pressing horizontal plate (72) for driving the barrier structure (6) to move downward, and a locking structure (73) for locking the downward pressing horizontal plate (72); The barrier structure (6) includes a longitudinal plate (64) longitudinally fixed to the right end below the storage platform (4), a plurality of evenly distributed vertical rods (65) are vertically fixed on the longitudinal plate (64), the vertical rods (65) are slidably sleeved with a lifting sleeve (611) up and down, and a lifting spring (66) is sleeved on the vertical rods (65), and the upper and lower ends of the lifting spring (66) are respectively in contact with the lifting sleeve (611) and the longitudinal plate (64); A lifting plate (61) is welded to the right side of the plurality of lifting sleeves (611), the left side surface of the lifting plate (61) is in sliding contact with the right side surface of the storage platform (4), the top of the lifting plate (61) is integrally formed with a plurality of evenly distributed blocking columns (62), a lower pressing block (63) is welded to the left side surface of the lifting plate (61), and a portion of the lower pressing block (63) is cut away toward the left side to form a lower pressing inclined surface (631); A transverse rod (74) is fixed in the air below the storage table (4) through a support, and two hanging rings are slidably sleeved on the transverse rod (74). A downward pressing horizontal plate (72) is fixed at the lower ends of the two hanging rings, and a downward pressing wheel (721) is rotatably mounted on the right side surface of the downward pressing horizontal plate (72) through an axle pin. A release inclined surface (723) is formed by cutting off the leftmost end of the downward pressing horizontal plate (72), and three sets of locking grooves (722) are formed on the front and rear sides of the left end of the downward pressing horizontal plate (72); A driving cylinder (71) is screwed to the lower end of the storage platform (4), a driving block (711) is mounted on the push rod of the driving cylinder (71), and the driving block (711) is connected to the downward pressing horizontal plate (72).

2. A hydraulic lifting platform with a conveying mechanism according to claim 1, characterized in that: A lower translation rod (21) and a fixed rod (23) are rotatably connected between the lower ends of the left and right sides of the two groups of scissor-type lifting frames (2), and the lower translation rod (21) is slidably connected to the left half of the base (1). The fixed rod (23) is fixed to the right end of the base (1). A pair of symmetrically distributed hydraulic cylinders (3) are installed on the fixed rod (23), and the push rods of the hydraulic cylinders (3) are connected to the lower translation rod (21). An upper translation rod (25) is rotatably connected between the upper ends of the left sides of the two groups of scissor-type lifting frames (2), and the upper translation rod (25) is slidably connected to the left half of the lower surface of the storage platform (4), and the upper end of the right side of the scissor-type lifting frame (2) is rotatably connected to the storage platform (4) through an axle pin. A lower support wheel (22) is rotatably mounted on the front and rear ends of the lower translation rod (21), and an upper support wheel (24) is rotatably mounted on the front and rear ends of the upper translation rod (25). The lower support wheel (22) and the upper support wheel (24) are in rolling contact with the surfaces of the base (1) and the storage table (4), respectively.

3. The hydraulic lifting platform with a conveying mechanism according to claim 2, characterized in that: Two movable rails (42) are fixed on the lower surface of the storage table (4), and the limiting member (43) includes a movable frame (432) slidably mounted below the two movable rails (42), and a connecting member (431) is fixed on the left side of each of the two movable frames (432), and the connecting member (431) is connected to the upper translation rod (25). An unlocking plate (438) is fixed to the right end of the rear movable frame (432); A horizontal plate (433) is fixed at the lower end between the two movable frames (432), and a lifting rod (434) is inserted into the horizontal plate (433) for sliding up and down. A limit block (436) is fixed at the top end of the lifting rod (434), and a lifting spring (435) is sleeved on the lifting rod (434). The two ends of the lifting spring (435) are respectively in contact with the horizontal plate (433) and the limit block (436), and the front and rear side surfaces of the limit seat (41) are flush with the front and rear side surfaces of the limit block (436).

4. The hydraulic lifting platform with a conveying mechanism according to claim 3, characterized in that: A contact inclined surface (411) is formed by cutting away a portion of the left surface of the limiting seat (41), and a vertical surface is provided on the right surface of the limiting seat (41); A lifting slope (437) is formed on the left side surface of the limit block (436), and the left side surface of the limit block (436) is vertically arranged to form a limited position surface.

5. The hydraulic lifting platform with a conveying mechanism according to claim 4, characterized in that: The locking structure (73) includes two guide rods (731) longitudinally fixed below the storage platform (4), a locking block (732) is slidably sleeved on the guide rods (731) in a forward and backward manner, and the two locking blocks (732) are connected as a whole by a straight rod, and a push block (735) for unlocking is fixed to the rear side of the left locking block (732), and the upper surface of the push block (735) is located below the downward pressing horizontal plate (72); A fixing ring (733) is sleeved and fixed on the guide rod (731), and a locking spring (734) is sleeved on the guide rod (731). The front and rear ends of the locking spring (734) are respectively connected to the fixing ring (733) and the locking block (732).

6. The hydraulic lifting platform with a conveying mechanism according to claim 5, characterized in that: A push bevel (736) is formed by cutting away a portion of the right surface of the push block (735), and an unlocking bevel (439) is formed by designing an inclined surface on the left surface of the unlocking plate (438). When the limiting member (43) is at the rightmost end, the unlocking bevel (439) contacts the push bevel (736).

7. The hydraulic lifting platform with a conveying mechanism according to claim 5, characterized in that: The number of the locking slots (722) is greater than the number of the locking blocks (732), and the left end of the leftmost locking block (732) has an empty locking slot (722).

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