Carrying equipment lifting platform with overload protection function

Abstract

The utility model relates to a carrying equipment lifting platform with overload protection, which belongs to the technical field of carrying equipment lifting platforms with overload protection, and comprises a rectangular bin, four support rods are fixed on the top surface of the rectangular bin, and a connecting plate is slidably connected between two support rods which are opposite front and back. A bearing bin is fixed between the two connecting plates, a bearing table is slidably connected into the bearing bin, and a protection mechanism is arranged on the bearing bin. The protection mechanism comprises a plurality of springs fixed to the bottom face of the bearing table, a compression bin is fixed to the inner bottom wall of the bearing bin, a piston plate is slidably connected into the compression bin, and two connecting rods with the top ends penetrating through the compression bin and fixed to the bottom face of the bearing table are fixed to the top face of the piston plate. According to the carrying equipment lifting platform with the overload protection function, the protection mechanism can monitor the up-down sliding amount of the bearing platform so as to timely remind a worker to withdraw part of materials when the bearing capacity is exceeded, and the overload protection function is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of a handling equipment lifting platform with overload protection, in particular to a handling equipment lifting platform with overload protection. Background Art

[0002] In manufacturing enterprises, the lifting and handling of materials is usually involved in the processes of transporting goods into warehouses, storing goods in warehouses, moving goods from storage locations to order sorting areas, and finally arriving at the shipping area to be prepared for shipment out of the warehouse. When transporting materials, a lifting platform of handling equipment is usually used to improve work efficiency.

[0003] For example, a Chinese patent (publication number: CN220886917U) discloses a lifting device and a feeding device, including a frame, a lifting platform, and a rigid chain lifting mechanism, wherein the lifting platform is slidably connected to the frame; the lifting platform can be lifted and lowered along a first direction, and the lifting platform is used to support the items to be transported; the rigid chain lifting mechanism is arranged at the bottom of the lifting platform and is fixedly connected to the bottom of the lifting platform, the rigid chain lifting mechanism is used to drive the lifting platform to lift and lower along the first direction, and the area where the rigid chain lifting mechanism is connected to the bottom of the lifting platform intersects with the center of gravity line of the lifting platform. Since the rigid chain lifting mechanism is used to drive the lifting and lowering, the displacement of the rigid chain is the displacement of the lifting, and the lifting platform is slidably connected to the frame at the same time, which can ensure that its positioning is more accurate and can withstand high loads. At the same time, since the area where the rigid chain lifting mechanism is connected to the bottom of the lifting platform intersects with the center of gravity line of the lifting platform, the overall structure is more stable.

[0004] However, the above-mentioned search patent still has some shortcomings. It does not have a relevant overload protection structure and cannot provide a reminder when the lifting device is overloaded, which may easily cause danger during the lifting process and cause certain inconveniences in use. Therefore, a handling equipment lifting platform with overload protection is proposed to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a handling equipment lifting platform with overload protection, which has the advantages of high safety and solves the problem that the device disclosed in the above-mentioned search patent lacks overload protection and has low safety.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting platform for handling equipment with overload protection, comprising a rectangular warehouse, four support rods are fixed to the top surface of the rectangular warehouse, a connecting plate is slidably connected between two front and rear opposite support rods, a bearing warehouse is fixed between the two connecting plates, a bearing platform is slidably connected in the bearing warehouse, a protection mechanism is provided on the bearing warehouse, and a lifting mechanism is provided on the rectangular warehouse;

[0007] The protection mechanism includes a plurality of springs fixed to the bottom surface of the supporting platform, a compression chamber is fixed on the inner bottom wall of the supporting chamber, a piston plate is slidably connected in the compression chamber, two connecting rods are fixed on the top surface of the piston plate, the top ends of the connecting rods pass through the compression chamber and are fixed to the bottom surface of the supporting platform, an infrared transmitter is fixed on the inner bottom wall of the supporting chamber, and an infrared receiver is fixed on the bottom surface of the supporting platform.

[0008] Furthermore, the top surface of the carrying bin is open, the carrying platform is a T-shaped platform, guide blocks are fixed on both sides of the carrying platform, and guide grooves are provided on the inner walls on both sides of the carrying bin for the guide blocks to slide up and down therein.

[0009] Furthermore, the lifting mechanism includes a motor fixed on the bottom wall of the rectangular warehouse, a worm is fixed to the rear end of the motor output shaft, a rotating rod is rotatably connected between the left and right inner walls of the rectangular warehouse, a worm wheel meshing with the worm is fixed on the outer peripheral wall of the rotating rod, two winding wheels are fixed on the outer peripheral wall of the rotating rod, a top plate is fixed to the top end of the two support rods on the left and the two support rods on the right, a guide wheel is installed on the bottom surface of the top plate, and a rope with one end passing around the guide wheel and fixed to the connecting plate is fixed to the top surface of the winding wheel.

[0010] Furthermore, four universal wheels are installed on the bottom surface of the rectangular bin, two guide holes are provided on the top surface of the connecting plate for the support rods to pass through and to be gap-matched with the support rods, and a controller is fixed on the front surface of the rectangular bin.

[0011] Furthermore, the top surface of the compression chamber is provided with two sliding holes for the connecting rod to pass through and be slidably connected thereto, a sealing ring is fixed on the outer peripheral wall of the piston plate, the compression chamber is used for the piston plate to slide up and down inside it, and the infrared transmitter and the infrared receiver are opposite to each other up and down.

[0012] Furthermore, the rear end of the worm is rotatably connected to the rear inner wall of the rectangular bin, and the two winding wheels are respectively opposite to the two top plates in an upper and lower direction.

[0013] Furthermore, the top surface of the connecting plate and the top surface of the rectangular bin are both provided with movable holes for the rope to pass through, and the rope is in an inverted U shape.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The lifting platform of the handling equipment with overload protection, when in use, carries materials for lifting and transportation through the provided load-bearing platform. When the materials are placed on the load-bearing platform, the load-bearing platform can move up and down inside the load-bearing bin and compress the spring provided by the protection mechanism. The spring can reduce the impact force of the materials on the device during loading. At the same time, the protection mechanism can monitor the amount of sliding on the load-bearing platform, so as to promptly remind the staff to withdraw part of the materials when the load-bearing capacity is exceeded, thereby playing an overload protection role.

[0016] 2. When lifting materials, the lifting platform of the handling equipment with overload protection drives the ropes on both sides to reel in through the motor. The ropes drive the connecting plate to slide upward stably along the support rod, thereby lifting the load bin and the materials on the top of the load bin. By arranging ropes on both sides, the stability of the lifting of the load bin is greatly improved, the practicability is better, and it is easier to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view schematic diagram of the utility model;

[0018] Figure 2 It is a front cross-sectional schematic diagram of the load-bearing bin of the utility model;

[0019] Figure 3 It is a top cross-sectional schematic diagram of a rectangular bin of the utility model;

[0020] Figure 4 It is a side view schematic diagram of the rectangular bin of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the load-bearing bin of the utility model.

[0022] In the figure: 1 rectangular bin, 2 support rod, 3 connecting plate, 4 bearing bin, 5 bearing platform, 601 spring, 602 compression bin, 603 piston plate, 604 connecting rod, 605 infrared transmitter, 606 infrared receiver, 607 guide block, 608 guide groove, 701 motor, 702 worm, 703 rotating rod, 704 worm wheel, 705 winding wheel, 706 top plate, 707 guide wheel, 708 rope. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1In this embodiment, a lifting platform for handling equipment with overload protection includes a rectangular warehouse 1, four support rods 2 are fixed on the top surface of the rectangular warehouse 1, a connecting plate 3 is slidably connected between two front and rear opposite support rods 2, a load-bearing warehouse 4 is fixed between the two connecting plates 3, a load-bearing platform 5 is slidably connected in the load-bearing warehouse 4, a protection mechanism is provided on the load-bearing warehouse 4, and a lifting mechanism is provided on the rectangular warehouse 1. When in use, the material is carried by the set load-bearing platform 5 for lifting and transportation. When the material is placed on the load-bearing platform 5, the load-bearing platform 5 can move up and down inside the load-bearing warehouse 4. The protection mechanism can reduce the impact force of the material on the device during loading. At the same time, the protection mechanism can monitor the amount of up and down sliding of the load-bearing platform 5, so as to promptly remind the staff to withdraw part of the material when the carrying capacity is exceeded, thereby playing an overload protection role.

[0025] Four universal wheels are installed on the bottom surface of the rectangular warehouse 1, and two guide holes are provided on the top surface of the connecting plate 3 for the support rod 2 to pass through and to fit with the clearance therethrough. A controller is fixed on the front of the rectangular warehouse 1. It should be noted that the controller is a controller with a display screen and a voice warning function. The control method of the present application is controlled by the controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present application is mainly used to protect mechanical devices, so the present application will no longer explain the control method and circuit connection in detail.

[0026] See also Figure 1 to Figure 2The protection mechanism includes a plurality of springs 601 fixed to the bottom surface of the bearing platform 5. The top surface of the bearing bin 4 is open, and the bearing platform 5 is a T-shaped platform. Guide blocks 607 are fixed on the left and right sides of the bearing platform 5. Guide grooves 608 for the guide blocks 607 to slide up and down therein are provided on the inner walls on the left and right sides of the bearing bin 4. When in use, the material is placed on the bearing platform 5, and the weight of the bearing platform 5 increases so that the guide blocks 607 and the guide grooves 608 slide downward and compress the springs 601. A compression bin 602 is fixed to the inner bottom wall of the bearing bin 4, and a piston plate 603 is slidably connected to the compression bin 602. Two connecting rods 604 with top ends penetrating the compression bin 602 and fixed to the bottom surface of the bearing platform 5 are fixed to the top surface of the piston plate 603. Two sliding holes for the connecting rods 604 to penetrate and be slidably connected thereto are provided on the top surface of the compression bin 602. There is a sealing ring, and the compression chamber 602 is used for the piston plate 603 to slide up and down inside it. At the same time, the downward movement of the bearing platform 5 will drive the connecting rod 604 to move downward. The connecting rod 604 pushes the piston plate 603 to move downward and then compresses the air inside the compression chamber 602, which plays a certain buffering and protective role. An infrared transmitter 605 is fixed on the inner bottom wall of the bearing chamber 4, and an infrared receiver 606 is fixed on the bottom surface of the bearing platform 5. The infrared transmitter 605 and the infrared receiver 606 are opposite to each other up and down. When the bearing platform 5 slides up and down, the infrared receiver 606 is also driven to move up and down. The amount of downward movement of the bearing platform 5 is monitored in real time through the infrared transmitter 605 and the infrared receiver 606. When the distance between the bearing platform 5 and the inner bottom wall of the bearing chamber 4 is less than the set value, it exceeds the load range. At this time, the controller will alarm to prompt the staff.

[0027] See also Figures 1 to 5 In this embodiment, the lifting mechanism includes a motor 701 fixed on the inner bottom wall of the rectangular warehouse 1, a worm 702 is fixed to the rear end of the output shaft of the motor 701, a rotating rod 703 is rotatably connected between the inner walls on the left and right sides of the rectangular warehouse 1, a worm wheel 704 meshing with the worm 702 is fixed on the outer peripheral wall of the rotating rod 703, and two winding wheels 705 are fixed on the outer peripheral wall of the rotating rod 703. When in use, the motor 701 is started, and the motor 701 drives the worm 702 to rotate, and the worm 702 is rotated through the worm wheel 70 4 drives the rotating rod 703 to rotate, and the rotating rod 703 drives the winding wheels 705 on both sides to rotate. Top plates 706 are fixed to the tops of the two left support rods 2 and the two right support rods 2. Guide wheels 707 are installed on the bottom surface of the top plates 706. A rope 708 with one end passing around the guide wheel 707 and fixed to the connecting plate 3 is fixed on the top surface of the winding wheel 705. Further, the winding wheel 705 winds up the rope 708 and cooperates with the guide wheel 707 to drive the connecting plate 3 to slide upward along the support rod 2 to achieve the effect of lifting materials.

[0028] The rear end of the worm 702 is rotatably connected to the rear inner wall of the rectangular bin 1, and the two winding wheels 705 are respectively opposite to the two top plates 706. The top surface of the connecting plate 3 and the top surface of the rectangular bin 1 are provided with movable holes for the rope 708 to pass through, and the rope 708 is in an inverted U shape.

[0029] The working principle of the above embodiment is:

[0030] (1) When in use, the material is placed on the carrying platform 5. The weight of the carrying platform 5 increases, and the guide block 607 and the guide groove 608 slide downward and compress the spring 601. At the same time, it will drive the connecting rod 604 to move downward. The connecting rod 604 pushes the piston plate 603 to move downward and then compresses the air inside the compression chamber 602, which plays a certain buffering and protective role. When the carrying platform 5 slides up and down, it will also drive the infrared receiver 606 to move up and down. The amount of downward movement of the carrying platform 5 is monitored in real time through the infrared transmitter 605 and the infrared receiver 606. When the distance between the carrying platform 5 and the inner bottom wall of the carrying chamber 4 is less than the set value, it exceeds the load range. At this time, the controller will send an alarm to remind the staff;

[0031] (2) When in use, start the motor 701, the motor 701 drives the worm 702 to rotate, the worm 702 drives the rotating rod 703 to rotate through the worm wheel 704, the rotating rod 703 drives the winding wheels 705 on both sides to rotate, and further, the winding wheel 705 winds up the rope 708 and cooperates with the guide wheel 707 to drive the connecting plate 3 to slide upward along the support rod 2 to achieve the effect of lifting the material.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting platform for handling equipment with overload protection, comprising a rectangular bin (1), characterized in that: Four support rods (2) are fixed on the top surface of the rectangular warehouse (1); a connecting plate (3) is slidably connected between two front and rear opposite support rods (2); a bearing warehouse (4) is fixed between the two connecting plates (3); a bearing platform (5) is slidably connected inside the bearing warehouse (4); a protection mechanism is provided on the bearing warehouse (4); and a lifting mechanism is provided on the rectangular warehouse (1); The protection mechanism comprises a plurality of springs (601) fixed to the bottom surface of the support platform (5); a compression chamber (602) is fixed on the inner bottom wall of the support chamber (4); a piston plate (603) is slidably connected inside the compression chamber (602); two connecting rods (604) are fixed to the top surface of the piston plate (603), the top ends of which penetrate the compression chamber (602) and are fixed to the bottom surface of the support platform (5); an infrared transmitter (605) is fixed on the inner bottom wall of the support chamber (4); and an infrared receiver (606) is fixed to the bottom surface of the support platform (5).

2. A lifting platform for handling equipment with overload protection according to claim 1, characterized in that: The top surface of the carrying bin (4) is open, the carrying platform (5) is a T-shaped platform, guide blocks (607) are fixed on both the left and right sides of the carrying platform (5), and guide grooves (608) are provided on the inner walls on both the left and right sides of the carrying bin (4) for the guide blocks (607) to slide up and down inside.

3. The lifting platform for handling equipment with overload protection according to claim 1, characterized in that: The lifting mechanism comprises a motor (701) fixed on the inner bottom wall of the rectangular bin (1), a worm (702) being fixed to the rear end of the output shaft of the motor (701), a rotating rod (703) being rotatably connected between the inner walls on the left and right sides of the rectangular bin (1), a worm wheel (704) meshing with the worm (702) being fixed on the outer peripheral wall of the rotating rod (703), two winding wheels (705) being fixed on the outer peripheral wall of the rotating rod (703), a top plate (706) being fixed to the top ends of the two left support rods (2) and the two right support rods (2), a guide wheel (707) being installed on the bottom surface of the top plate (706), and a rope (708) having one end passing around the guide wheel (707) and fixed to the connecting plate (3) being fixed to the top surface of the winding wheel (705).

4. The lifting platform for handling equipment with overload protection according to claim 1, characterized in that: The bottom surface of the rectangular bin (1) is provided with four universal wheels, the top surface of the connecting plate (3) is provided with two guide holes for the support rod (2) to pass through and to be clearance-matched therewith, and a controller is fixed on the front surface of the rectangular bin (1).

5. The lifting platform for handling equipment with overload protection according to claim 1, characterized in that: The top surface of the compression chamber (602) is provided with two sliding holes for the connecting rod (604) to pass through and be slidably connected thereto. A sealing ring is fixed on the outer peripheral wall of the piston plate (603). The compression chamber (602) is used for the piston plate (603) to slide up and down inside it. The infrared transmitter (605) and the infrared receiver (606) are opposite to each other in the upper and lower directions.

6. The lifting platform for handling equipment with overload protection according to claim 3, characterized in that: The rear end of the worm (702) is rotatably connected to the rear inner wall of the rectangular bin (1), and the two winding wheels (705) are respectively opposed to the two top plates (706) in an upper and lower position.

7. The lifting platform for handling equipment with overload protection according to claim 3, characterized in that: The top surface of the connecting plate (3) and the top surface of the rectangular bin (1) are both provided with movable holes for the rope (708) to pass through, and the rope (708) is in an inverted U shape.

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