Safe lifting device

Abstract

The utility model relates to a safe lifting device which comprises a grabbing component, a lifting component, a lifting component and a lifting component. The grabbing component comprises two buckets and a grabbing driving mechanism used for driving the two buckets to be closed or opened; the hoisting component is arranged to be connected with the grabbing component and drives the grabbing component to ascend or descend; the transferring component is arranged to be connected with the lifting component and drives the lifting component to move in the first horizontal direction or the second horizontal direction, and the first horizontal direction is perpendicular to the second horizontal direction; and the sensing part comprises a human body sensor which is arranged on the grabbing part or the lifting part, and the sensing range of the human body sensor radiates the position under the grabbing part. According to the scheme, materials can be hoisted and transferred, the materials can be rapidly dug up, meanwhile, the inductor is arranged, so that people below the inductor can be induced, safety accidents are avoided, operation is easy, and practicability is high.

Description

Technical Field

[0001] This application relates to the technical field of hoisting equipment, and particularly to a safe lifting device. Background Art

[0002] A lifting device is a machine that operates in a cyclic and intermittent manner. A working cycle usually includes: the lifting device picks up an item from the picking location, then horizontally moves to a designated location to lower the item, and then performs a reverse movement to return the lifting device to its original position for the next cycle. The transfer of items through the lifting device can not only save labor but also greatly improve the transfer efficiency.

[0003] Although the existing lifting devices can transfer materials, there are still some problems. First, the current hoisting devices cannot quickly pick up the items to be transferred and require manual assistance, which is cumbersome. Second, the current lifting devices cannot sense people located below them, posing certain safety hazards. Utility Model Content

[0004] Based on this, the present utility model provides a safe lifting device, aiming to solve the following problems: the existing lifting devices cannot quickly lift materials and cannot sense people below them.

[0005] A safe lifting device provided by the present utility model includes:

[0006] A grasping component, including two buckets and a grasping driving mechanism for driving the two buckets to close or open;

[0007] A lifting component, arranged to be connected to the grasping component and driving the grasping component to rise or fall;

[0008] A transfer component, arranged to be connected to the lifting component and driving the lifting component to move along a first horizontal direction or a second horizontal direction, wherein the first horizontal direction and the second horizontal direction are perpendicular to each other;

[0009] A sensing component, including a human body sensor, which is arranged on the grasping component or the lifting component, and the sensing range of the human body sensor radiates directly below the grasping component.

[0010] In one embodiment, the grasping driving mechanism includes:

[0011] A support plate, which is fixedly connected to the lifting component;

[0012] A telescopic driving member, which includes a body fixedly connected to the support plate and a telescopic arm that can extend and retract along the body, and both sides of the buckets are hinged to the telescopic arm;

[0013] Two support rods are respectively hinged between the outer sides of the two buckets and the two ends of the support plate.

[0014] In one embodiment, the telescopic drive member is a hydraulic telescopic rod.

[0015] In one embodiment, the lifting component comprises:

[0016] A support box, which is fixedly connected to the transfer component;

[0017] Two winding drums are rotatably arranged in the support box through an axle rod, and a steel wire rope is wound on the winding drum, and the steel wire rope passes through the support box and is fixedly connected to the grabbing component;

[0018] A lifting drive mechanism is arranged in the support box and is used for driving the shaft to rotate.

[0019] In one embodiment, the two winding drums are symmetrically arranged relative to the center of the shaft.

[0020] In one embodiment, the lifting drive mechanism includes a lifting power member and a transmission assembly connected between the lifting power member and the shaft;

[0021] The transmission assembly comprises a driving bevel gear fixed to the output shaft of the lifting power member and a driven bevel gear fixed to the shaft rod, and the driving bevel gear is meshed with the driven bevel gear.

[0022] In one embodiment, the transfer component comprises:

[0023] Two fixing plates, the two fixing plates are arranged opposite to each other and both extend along the first horizontal direction, and the fixing plates are provided with first mounting grooves;

[0024] A first horizontal driving mechanism, which is provided with two and is respectively arranged in the first mounting grooves of the two fixing plates, and is used to provide a horizontal driving force in the first horizontal direction;

[0025] The second horizontal driving mechanism is vertically connected between the two first horizontal driving mechanisms and is used for providing a horizontal driving force in the second horizontal direction.

[0026] In one embodiment, the first horizontal driving mechanism comprises:

[0027] A first guide rod, which is fixedly installed in the first installation groove along the first horizontal direction, and a guide sleeve is slidably sleeved on the first guide rod;

[0028] The wheel carrier is fixedly connected to the guide sleeve. A first power component is fixedly installed on the wheel carrier, and an output shaft of the first power component is fixedly connected to a moving gear rotatably installed on the wheel carrier;

[0029] The rack is fixedly installed in the first installation groove and meshes with the moving gear, enabling the moving gear to stably move along the rack.

[0030] In one embodiment, the second horizontal driving mechanism includes:

[0031] A connecting plate is vertically connected between the two wheel carriers. A second installation groove extending along the second horizontal direction is provided on the connecting plate;

[0032] A second guide rod is fixedly installed in the second installation groove along the second horizontal direction;

[0033] A lead screw is rotatably installed in the second installation groove. A threaded block is threadedly connected to the lead screw. The threaded block is slidably matched with the second guide rod, and the upper end of the lifting component is fixedly connected to the threaded block;

[0034] A second power component, and a gear transmission assembly is connected between the second power component and the lead screw.

[0035] In one embodiment, the human body sensor is a thermal infrared human body sensor.

[0036] The utility model has at least the following beneficial effects compared with the prior art:

[0037] This safe lifting device can not only lift and transfer materials, but also quickly dig up the materials. At the same time, it is provided with a sensor, so that people below it can be sensed to avoid potential safety hazards. It is simple to operate and has strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic structural diagram of the safe lifting device in one embodiment.

[0039] Figure 2 It is a schematic diagram of the first horizontal driving mechanism of the safe lifting device in one embodiment.

[0040] Figure 3 It is a schematic diagram of the second horizontal driving mechanism of the safe lifting device in one embodiment.

[0041] Figure 4 It is a schematic diagram of the lifting component of the safe lifting device in one embodiment.

[0042] The reference numerals in the accompanying drawings of the specification include: fixed plate 1, first horizontal moving mechanism 2, connecting plate 3, second horizontal moving mechanism 4, suspension rod 5, lifting component 6, sensing component 7, grasping component 8, first installation groove 11, first guide rod 21, guide sleeve 22, wheel frame 23, first power component 24, moving gear 25, rack 26, second installation groove 31, second power component 41, first gear 42, lead screw 43, second gear 44, second guide rod 45, threaded block 46, support box 61, lifting power component 62, driving bevel gear 63, shaft rod 64, driven bevel gear 65, winding drum 66, steel wire rope 67, support plate 81, support rod 82, bucket 83, pin shaft 84, telescopic driving component 85. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present utility model in a schematic manner.

[0045] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Any modification of the structure, change of the ratio relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0046] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "middle", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc. cited in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0047] An embodiment of the present utility model provides a safe lifting device, which includes:

[0048] A grasping component 8, including two buckets 83 and a grasping driving mechanism for driving the two buckets 83 to close and open;

[0049] A lifting component 6, arranged to be connected to the grasping component 8 and driving the grasping component 8 to rise or fall;

[0050] The transfer component is configured to be connected to the lifting component 6 and drive the lifting component 6 to move along a first horizontal direction or a second horizontal direction, where the first horizontal direction and the second horizontal direction are perpendicular to each other;

[0051] The sensing component 7 includes a human body sensor, which is disposed on the grasping component 8 or the lifting component 6, and the sensing range of the human body sensor radiates directly below the grasping component 8.

[0052] When the safety lifting device provided by the embodiment of the present invention is in use, first, the transfer component drives the lifting component 6 to move along the first horizontal direction and / or the second horizontal direction, so that the lifting component 6 and the grasping component 8 located on the lifting component 6 are located above the material to be grasped. Then, the lifting component 6 is activated. When the grasping component 8 is lowered to the height where the material needs to be grasped, the two buckets 83 are driven to close by the grasping driving mechanism to grasp the material. After that, the lifting component 6 is activated in the reverse direction, and the material dug by the buckets 83 driven by the lifting component 6 rises. Subsequently, the transfer component is activated to horizontally move the material to a specified position. Then, the lifting component 6 drives the buckets 83 to drive the material to descend to the discharging height. Finally, the two buckets 83 are driven to open by the grasping driving mechanism, and the material can be unloaded to the specified position. During this process, whether grasping the material or unloading the material, the human body sensor can sense directly below the buckets 83. When someone passes directly below it, an alarm is issued to prompt people to stay away as soon as possible or control the buckets 83 to stop descending to avoid safety accidents.

[0053] The safety lifting device provided by the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0054] According to Figure 1 An exemplary safety lifting device showing at least one embodiment of the present invention, the safety lifting device includes: a grasping component 8, a lifting component 6, a transfer component, and a sensing component 7.

[0055] Among them, the transfer component is used to realize the horizontal transfer of the lifting component 6 and the grasping component 8, so as to horizontally transfer the material to be transported from one station to another station. For example, in this embodiment, the transfer component is used to drive the lifting component 6 to move along a first horizontal direction or a second horizontal direction, and the first horizontal direction and the second horizontal direction are perpendicular to each other. In this way, through the combination of the two perpendicular horizontal direction movements, the horizontal position transfer of the lifting component 6 can be realized, providing a basis for the transfer of the material.

[0056] See Figure 1, in this embodiment, the transfer component specifically includes two fixing plates 1 and a first horizontal driving mechanism and a second horizontal driving mechanism arranged on the fixing plates 1. Among them, the two fixing plates 1 are the supporting components of the overall lifting device. For example, during installation, the two fixing plates 1 are fixedly installed on the support frames in areas such as construction areas and production areas. The support frame can be a gantry frame. In this way, the installation and fixation of the fixing plates 1 can be achieved, and the first horizontal driving mechanism and the second horizontal driving mechanism located on the fixing plates 1, the lifting component 6 driven by the transfer component, the grasping component 8, etc. are naturally also supported on the support frame.

[0057] Specifically, referring to Figure 1 and Figure 2 , the two fixing plates 1 are arranged opposite to each other along the second horizontal direction and extend along the first horizontal direction. Among them, the first horizontal direction can be understood as Figure 1 the front-back direction of the orientation shown, and the second horizontal direction can be understood as Figure 1 the left-right direction of the orientation shown. In this way, moving along the extension direction of the fixing plate 1 is moving along the first horizontal direction, and moving along the relative direction of the fixing plate 1 is moving along the second horizontal direction.

[0058] Referring to Figure 2 , a first installation groove 11 is formed on each fixing plate 1. The first installation groove 11 extends along the first horizontal direction. Two first horizontal driving mechanisms are provided and are respectively installed in the first installation grooves 11 of the two fixing plates 1 for providing an adapted driving force in the first horizontal direction.

[0059] Specifically, referring to Figure 2 , the first horizontal driving mechanism includes a first guide rod 21, a wheel frame 23, and a rack 26. Among them, the first guide rod 21 is installed in the first installation groove 11 along the first horizontal direction. Specifically, its two ends are fixedly connected to the inner walls of the first installation groove 11 formed on the fixing plate 1. A guide sleeve 22 is sleeved on the first guide rod 21, and the guide sleeve 22 can slide stably along the first guide rod 21. The wheel frame 23 is arranged in the first installation groove 11 and is fixedly connected to the guide sleeve 22, so that it can move along the first guide rod 21 in the first horizontal direction through the guide sleeve 22. A first power component 24 is fixedly installed on the wheel frame 23. The first power component 24 is a motor that can rotate forward and backward. The output shaft of the first power component 24 is fixedly connected to a moving gear 25 that is rotatably installed on the wheel frame 23. The rack 26 is fixedly installed on the bottom wall of the first installation groove 11 and is arranged along the first horizontal direction. The moving gear 25 on the wheel frame 23 meshes with the rack 26, so that the moving gear 25 can move stably along the rack 26.

[0060] When controlling the movement of the material in the first horizontal direction (front and back), the first power component 24 is activated. The output shaft of the first power component 24 drives the moving gear 25 to rotate, and the moving gear 25 can then move along the rack 26, thereby driving the wheel carrier 23 and the guide sleeve 22 to slide stably along the first guide rod 21. The movement of the wheel carrier 23 can provide a driving force in the first horizontal direction, and then drive the material to move forward or backward.

[0061] Participate Figure 1 , in this embodiment, the second horizontal driving mechanism is vertically connected between the two first horizontal driving mechanisms for providing a horizontal driving force in the second horizontal direction.

[0062] Specifically, participate Figure 3 , the second horizontal driving mechanism includes a connecting plate 3, a second guide rod 45, a lead screw 43 and a second power component 41. Among them, the connecting plate 3 is horizontally connected to the wheel carriers 23 of the left and right first horizontal driving mechanisms, so that when the first power component 24 drives the wheel carrier 23 to move in the first horizontal direction, it can drive the connecting plate 3 to move in the first horizontal direction. A second installation groove 31 extending in the second horizontal direction is formed on the connecting plate 3, and the second guide rod 45 is installed in the second installation groove 31 along the second horizontal direction. Specifically, both ends thereof are fixedly connected to the inner wall of the second installation groove 31 formed on the connecting plate 3. The lead screw 43 is also installed in the second installation groove 31 along the second horizontal direction. Specifically, both ends thereof are rotatably connected to the inner wall of the second installation groove 31 formed on the connecting plate 3. A threaded block 46 is threadedly connected to the lead screw 43, and the threaded block 46 is also slidably engaged with the second guide rod 45. The second power component 41 is fixedly installed in the second installation groove 31, and it is a motor that can rotate forward and backward. A gear transmission assembly is connected between the output shaft of the second power component 41 and the lead screw 43. The gear transmission assembly includes a first gear 42 fixed to the output shaft of the second power component 41 and a second gear 44 fixed to the lead screw 43, and the first gear 42 and the second gear 44 are engaged.

[0063] When controlling the movement of the material in the second horizontal direction (left and right), the second power component 41 is activated. The output shaft of the second power component 41 drives the first gear 42 to rotate, the first gear 42 drives the second gear 44 and the lead screw 43 to rotate, and the rotation of the lead screw 43 can make the threaded block 46 move left or right along the slide rod 45. The movement of the threaded block 46 can provide a driving force in the second horizontal direction, and then drive the material to move left or right.

[0064] In this embodiment, the lifting component 6 is used to drive the grasping component 8 to rise or fall to realize the aerial transfer of the material in combination with the transfer component.

[0065] See Figure 1 and Figure 4The lifting component 6 includes a support box 61, two winding drums 66 and a lifting drive mechanism. Among them, the support box 61 is fixed on the threaded block 46 through a suspension rod 5, so that when the second power member 41 drives the threaded block 46 to move along the second horizontal direction, the support box 61 can be driven to move along the second horizontal direction. The interior of the support box 61 has a cavity, and the winding drum 66 and the lifting drive mechanism are both arranged in the cavity. Specifically, a shaft rod 64 is arranged in the support box 61, and both ends of the shaft rod 64 are rotatably connected to the inner wall of the support box 61. The two winding drums 66 are fixed on the shaft rod 64 and are symmetrically arranged relative to the center of the shaft rod 64. The two winding drums 66 are wound with steel wire ropes 67, and the lower ends of the steel wire ropes 67 pass through the support box 61 and are fixedly connected to the grabbing component 8. The lifting drive mechanism is used to drive the shaft 64 to rotate, which specifically includes a lifting power member 62 and a transmission assembly that is connected between the lifting power member 62 and the shaft 64, wherein the lifting power member 62 is a reversible motor, and the transmission assembly includes an active bevel gear 63 fixed to the output shaft of the lifting power member 62 and a driven bevel gear 65 fixed to the shaft 64, and the active bevel gear 63 is meshed with the driven bevel gear 65.

[0066] When lifting materials, the third power component 62 is turned on, and the output shaft of the third power component 62 drives the active bevel gear 63 to rotate, and the active bevel gear 63 drives the driven bevel gear 65 and the shaft 64 to rotate. The rotation of the shaft 64 can drive the winding drum 66 to rotate, and the rotation of the winding drum 66 can reel in or unreel the wire rope 67, and the wire rope 67 can lift or lower the material on the grabbing component 8.

[0067] In this embodiment, the grabbing component 8 is used to automatically grab the material, so as to realize the grabbing and transfer of the material in combination with the lifting component 6 and the transfer component.

[0068] See also Figure 1 The grabbing component 8 includes two buckets 83 and a grabbing driving mechanism for driving the two buckets 83 to close or open. The grabbing driving mechanism includes a support plate 81, a telescopic driving member 85 and two support rods 82. The support plate 81 is horizontally fixed to the ends of the two steel wires 67 so as to realize the lifting and lowering of the grabbing component 8 by winding and unwinding the steel wires 67. The telescopic driving member 85 includes a body fixed to the lower end of the support plate 81 and a telescopic arm that can be telescopic along the body. For example, the telescopic driving member 85 can be a hydraulic telescopic rod. The two buckets 83 are arranged opposite to each other, and the upper ends of the two buckets 83 are hinged to the ends of the telescopic arms through a pin 84. The two support rods 82 are respectively hinged between the outer sides of the two buckets 83 and the two ends of the support plate 81, and are symmetrically arranged.

[0069] When excavating materials, the telescopic driving member 85 is activated. The telescopic driving member 85 drives the telescopic arm to move downward, thereby pushing the bucket 83 to rotate downward around the support rod 82. After moving the bucket 83 to the materials through the lifting mechanism 6, the telescopic driving member 85 is activated in the reverse direction. The telescopic driving member 85 can drive the shaft rod 6485 to move upward, thereby driving the bucket 83 to rotate upward around the support rod 82, and the bucket 83 can scoop up the materials.

[0070] In this embodiment, the sensing component 7 is used to sense whether there is anyone directly below the grasping component 8 and remind the staff to avoid safety accidents.

[0071] Specifically, in this embodiment, the sensing component 7 is arranged on the grasping component 8 or the lifting component 6. For example, refer to Figure 1 , which exemplarily shows the implementation manner in which the sensing component 7 is arranged on the lifting component 6. The sensing component 7 is a human body sensor, specifically a thermal infrared human body sensor, and its sensing range radiates directly below the grasping component 8. For example, refer to Figure 1 , the range sensed by the sensing component 7 is conically covered downward from the sensing component 7, so that the sensing range is wider. As long as a person passes through the conical range covered by the sensing component 7, an alarm will be immediately issued to prompt the person to stay away as soon as possible or stop the lifting device.

[0072] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0073] The above embodiments only represent several implementation manners of the present application. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A safe lifting device, characterized in that: include: A grabbing component (8) comprising two buckets (83) and a grabbing driving mechanism for driving the two buckets (83) to close or open; A lifting component (6) is arranged to be connected to the grabbing component (8) and to drive the grabbing component (8) to rise or fall; A transfer component, arranged to be connected to the lifting component (6) and to drive the lifting component (6) to move along a first horizontal direction or a second horizontal direction, wherein the first horizontal direction and the second horizontal direction are perpendicular to each other; The sensing component (7) comprises a human body sensor, which is arranged on the grasping component (8) or the lifting component (6), and the sensing range of the human body sensor radiates directly below the grasping component (8).

2. The safety lifting device according to claim 1, characterized in that: The grabbing drive mechanism comprises: A support plate (81) fixedly connected to the lifting component (6); A telescopic driving member (85), comprising a body fixedly connected to the support plate (81) and a telescopic arm that can be telescoped along the body, and the buckets (83) on both sides are hingedly arranged on the telescopic arm; Two support rods (82), the two support rods (82) are respectively hinged between the outer sides of the two buckets (83) and the two ends of the support plate (81).

3. The safety lifting device according to claim 2, characterized in that: The telescopic driving member (85) is a hydraulic telescopic rod.

4. The safety lifting device according to claim 1, characterized in that: The lifting component (6) comprises: A support box (61) fixedly connected to the transfer component; Two winding drums (66) are rotatably arranged in the support box (61) via an axle rod (64), a steel wire rope (67) is wound on the winding drum (66), and the steel wire rope (67) passes through the support box (61) and is fixedly connected to the grabbing component (8); A lifting drive mechanism is arranged in the support box (61) and is used to drive the shaft (64) to rotate.

5. The safety lifting device according to claim 4, characterized in that: The two winding drums (66) are symmetrically arranged relative to the center of the shaft (64).

6. The safety lifting device according to claim 4, characterized in that: The lifting drive mechanism comprises a lifting power member (62) and a transmission assembly drivingly connected between the lifting power member (62) and the shaft rod (64); The transmission assembly comprises a driving bevel gear (63) fixed to the output shaft of the lifting power member (62) and a driven bevel gear (65) fixed to the shaft rod (64), and the driving bevel gear (63) is meshed with the driven bevel gear (65).

7. The safety lifting device according to claim 1, characterized in that: The transfer component comprises: Two fixing plates (1), the two fixing plates (1) being arranged opposite to each other and both extending along the first horizontal direction, and the fixing plates (1) being provided with first mounting grooves (11); Two first horizontal driving mechanisms are provided and are respectively arranged in the first mounting grooves (11) of the two fixing plates (1), and are used to provide a horizontal driving force in the first horizontal direction; The second horizontal driving mechanism is vertically connected between the two first horizontal driving mechanisms and is used for providing a horizontal driving force in the second horizontal direction.

8. The safety lifting device according to claim 7, characterized in that: The first horizontal driving mechanism comprises: A first guide rod (21) fixedly installed in the first installation groove (11) along the first horizontal direction, and a guide sleeve (22) is slidably sleeved on the first guide rod (21); A wheel frame (23) is fixedly connected to the guide sleeve (22), a first power member (24) is fixedly mounted on the wheel frame (23), and an output shaft of the first power member (24) is fixedly connected to a moving gear (25) rotatably mounted on the wheel frame (23); A rack (26) is fixedly mounted in the first mounting groove (11) and meshes with the moving gear (25), so that the moving gear (25) can move stably along the rack (26).

9. The safety lifting device according to claim 8, characterized in that: The second horizontal driving mechanism comprises: A connecting plate (3) vertically connected between the two wheel frames (23), the connecting plate being provided with a second mounting groove (31) extending along the second horizontal direction; A second guide rod (45) fixedly mounted in the second mounting groove (31) along the second horizontal direction; A screw rod (43) is rotatably mounted in the second mounting groove (31); a threaded block (46) is threadedly connected to the screw rod (43); the threaded block (46) is slidably matched with the second guide rod (45); and the upper end of the lifting component (6) is fixedly connected to the threaded block (46); A second power member (41), wherein a gear transmission assembly is connected between the second power member (41) and the screw rod (43).

10. The safety lifting device according to claim 1, characterized in that: The human body sensor is a thermal infrared human body sensor.

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