Load detection warning equipment for crane and crane assembly

Abstract

The utility model relates to load detecting and warning equipment for a crane and a crane assembly. The load detection warning equipment for the crane comprises an alarm, a warning display screen and a detection assembly, and the detection assembly comprises a mounting frame mounted on one side of the warning display screen; the motor is mounted at the bottom of the mounting frame; the threaded rod is connected with a driving shaft of the motor; the extrusion disc is arranged on the circumferential outer side of the threaded rod and is in threaded fit with the threaded rod, and a positioning groove is formed in the extrusion disc; the positioning plate is mounted on the mounting frame in a swinging manner, a friction inclined block is arranged on the inner side of the positioning plate, and the friction inclined block extends into the positioning groove; and the detector is mounted on the outer side of the positioning plate and is connected with the alarm. According to the warning equipment, the detector is used for scanning the vicinity, and when the detector detects a person approaching the crane, the alarm is used for warning the person, so that accidental injury of the crane to the person is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, and more specifically, to a load detection and warning device for a crane and a crane component. Background Art

[0002] At present, cranes are used for the transportation and lifting of large equipment. With the continuous development of science and technology, current cranes have weight display and weight warning functions, including the transportation and lifting of equipment. However, during the transportation and lifting of equipment by cranes, workers are likely to move around the cranes, and when the lifted equipment shakes during transportation, it is easy to injure nearby workers; in addition, the display panel that detects the weight of the lifted equipment is exposed to the external environment for a long time, so the display panel will age faster and adhere to dust, increasing the frequency of cleaning and replacement of the display panel.

[0003] Therefore, how to provide a load detection warning device for a crane that can warn people close to the crane to avoid accidental injury to people by the crane is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0004] In view of this, the utility model provides a load detection and warning device for a crane and a crane assembly including the load detection and warning device for a crane, which not only use a warning display screen to warn, detect and prompt the weight of the equipment lifted by the crane, but also use a detector to scan the vicinity. When the detector detects a person approaching the crane, an alarm is used to warn the person, thereby avoiding accidental injury to the person by the crane.

[0005] To achieve the above-mentioned purpose, the utility model provides a load detection and warning device for a crane, which includes an alarm, a warning display screen and a detection component, wherein the detection component includes: a mounting frame, the mounting frame is installed on one side of the warning display screen; a motor, the motor is installed at the bottom of the mounting frame; a threaded rod, the threaded rod is connected to the driving shaft of the motor; an extrusion disk, the extrusion disk is arranged on the circumferential outer side of the threaded rod and is threadedly matched with the threaded rod, and the extrusion disk is provided with a positioning groove; a positioning plate, the positioning plate is swingably mounted on the mounting frame, the inner side of the positioning plate is provided with a friction bevel, and the friction bevel extends into the positioning groove; and a detector, the detector is installed on the outer side of the positioning plate and connected to the alarm.

[0006] Optionally, a torsion spring is installed between the positioning plate and the mounting frame.

[0007] Optionally, the positioning plate is provided with a rotating block, the mounting frame is provided with a rotating groove, and the rotating block passes through the torsion spring and extends into the rotating groove.

[0008] Optionally, the mounting frame is mounted on the lower part of the one side of the warning display screen via a first fastener; the motor is mounted on the bottom of the mounting frame via a second fastener; the detector is connected to the alarm via wires or signals; and / or, there are multiple positioning plates, multiple positioning plates are arranged around the threaded rod on the mounting frame, and a detector is installed on the outer side of each positioning plate.

[0009] In addition, the utility model also provides a crane assembly, which includes a crane, a protective plate and the above-mentioned load detection and warning device for the crane, wherein: the crane includes a supporting body and a mounting block installed on the supporting body; the protective plate is installed on one side of the mounting block; and the warning display screen can be slid up and down on one side of the protective plate.

[0010] Optionally, the mounting block is provided with a connecting block, the protective plate is provided with a mounting hole, and the connecting block is installed in the mounting hole.

[0011] Optionally, the protective plate is provided with a sliding groove along the up-down direction, and the warning display screen is provided with a sliding block that slides with the sliding groove.

[0012] Optionally, the crane assembly further includes a push plate, and the crane further includes a driver, a rope and a lifting seat, the driver is installed at the bottom of the mounting block, the upper end of the rope is wound around a driving shaft of the driver, and the lower end of the rope is connected to the lifting seat; the push plate is installed on one side of the lifting seat and is located below the warning display screen and the detection assembly.

[0013] Optionally, a detection component protective cover corresponding to the detection component is provided on one side of the mounting block, and the detection component protective cover is located above the detection component.

[0014] Optionally, a thread groove is provided on one side of the lifting seat, an elastic plate is provided at the end of the pushing plate, a positioning protrusion is provided on one side of the elastic plate, the positioning protrusion extends into the thread groove, and a third fastener passes through the elastic plate and the positioning protrusion in sequence to reach the thread groove and is threadedly connected to the thread groove.

[0015] Compared with the prior art, the crane load detection and warning device and crane assembly provided by the utility model have the following beneficial effects:

[0016] (1) Compared with the load detection and warning device for cranes in the prior art, the load detection and warning device for cranes provided by the utility model not only uses a warning display screen to warn, detect and prompt the weight of the equipment lifted by the crane, but also because the motor, threaded rod and extrusion plate form an expansion mechanism to push the positioning plate to swing, thereby driving the detector to swing together, thereby expanding the detection range of the detector, so that the detector can scan objects within a larger range nearby. When the detector detects a person approaching the crane, an alarm is used to warn the person, thereby avoiding accidental injury to the person by the crane.

[0017] (2) The crane assembly provided by the utility model is installed on one side of the protective plate by sliding the warning display screen up and down. Therefore, when the warning display screen is raised, the warning display screen can be placed on the side of the protective plate, so that the warning display screen is protected by the protective plate, avoiding the warning display screen from being exposed to the external environment for a long time, thereby slowing down the aging speed of the warning display screen and reducing the frequency of cleaning and replacement of the warning display screen.

[0018] (3) The crane assembly provided by the utility model can be more convenient to push the warning display screen and the detection assembly to be raised and lowered by providing a push plate that can be raised and lowered with the lifting seat; and because a detection assembly protective cover corresponding to the detection assembly is provided on one side of the mounting block, the raised detection assembly can be placed in the detection assembly protective cover to prevent dust and protect the detection assembly. That is, after the lifting seat of the crane is raised (retracted), the warning display screen and the detector can be retracted synchronously, thereby achieving the effects of preventing dust and protecting the warning display screen and the detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the implementation methods of the present invention will be further illustrated and described based on the following drawings. These drawings are only used to more conveniently and specifically describe the implementation methods of the present invention rather than to limit the present invention.

[0020] Figure 1 is a structural schematic diagram of a crane assembly provided according to an exemplary embodiment of the utility model from one perspective;

[0021] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0022] Figure 3 It is a schematic diagram of the disassembled structure of a load detection and warning device for a crane provided according to an exemplary embodiment of the utility model;

[0023] Figure 4 is a cross-sectional view of a crane assembly provided according to an exemplary embodiment of the utility model;

[0024] Figure 5 is a cross-sectional view of a squeeze disc of a detection assembly provided according to an exemplary embodiment of the utility model;

[0025] Figure 6 yes Figure 1 A magnified view of part A;

[0026] Figure 7 yes Figure 3 A magnified view of part B; and

[0027] Figure 8 yes Figure 4 Magnified view of part C.

[0028] In the figure: 1. Crane; 101. Support body; 102. Mounting block; 103. Driver; 104. Lifting seat; 2. Alarm; 3. Push plate; 4. Protective plate; 5. Warning display screen; 6. Detection component; 601. Mounting frame; 602. Motor; 603. Threaded rod; 604. Extrusion plate; 605. Positioning plate; 606. Detector. DETAILED DESCRIPTION

[0029] The utility model provides a load detection and warning device for a crane and a crane component including the load detection and warning device for a crane, which not only use a warning display screen to warn, detect and prompt the weight of equipment lifted by the crane, but also use a detector to scan the vicinity. When the detector detects a person approaching the crane, an alarm is used to warn the person, thereby avoiding accidental injury to the person by the crane.

[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the specific embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. These embodiments are provided by way of example only. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are also within the scope of protection claimed by the utility model.

[0031] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0032] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0033] refer to Figures 1 to 8 The embodiment of the utility model provides a load detection and warning device for a crane. Figures 1 to 8As shown in , the load detection warning device for crane includes an alarm 2, a warning display screen 5 and a detection assembly 6. The detection assembly 6 includes a mounting frame 601, a motor (e.g., an electric motor) 602, a threaded rod 603, an extrusion disc 604, a positioning plate 605 and a detector 606. The mounting frame 601 is installed on one side of the warning display screen 5. The motor 602 is installed at the bottom of the mounting frame 601. The threaded rod 603 is connected to the driving shaft of the motor 602 to control the rotation of the threaded rod 603 through the motor 602. The extrusion disc 604 is arranged on the circumferential outer side of the threaded rod 603 and is threadedly matched with the threaded rod 603. The extrusion disk 604 (for example, the bottom of the extrusion disk 604) is provided with a positioning groove; the positioning plate 605 is swingably mounted on the mounting frame 601, and a friction bevel is provided on the inner side of the positioning plate 605, and the friction bevel extends into the positioning groove; in this way, with the cooperation of the positioning groove and the friction bevel, the effect of circular positioning of the extrusion disk 604 can be achieved, and the threaded rod 603 can drive the extrusion disk 604 to rise and fall stably when rotating, and the extrusion disk 604 squeezes the positioning plate 605 during the descent process, so that the positioning plate 605 is deflected outward as a whole from its upper part, thereby achieving the swing of the positioning plate 605; the detector 606 is installed on the outer side of the positioning plate 605 and is connected to the alarm 2. In this way, the load detection and warning device for the crane can not only use the warning display screen 5 to warn, detect and prompt the weight of the equipment lifted by the crane, but also because the motor 602, threaded rod 603 and extrusion plate 604 form an expansion mechanism to push the positioning plate 605 to swing, and then drive the detector 606 to swing together, thereby expanding the detection range of the detector 606, so that the detector 606 can scan objects in a larger range nearby. Before the crane lifts the equipment, the detector 606 is used to scan the vicinity. When the detector 606 detects a person approaching the crane, the alarm 2 is used to warn the person, thereby avoiding accidental injury to the person by the crane.

[0034] In a preferred embodiment of the present invention, a torsion spring is installed between the positioning plate 605 and the mounting frame 601. During the swinging process of the positioning plate 605 and the detector 606, the torsion spring pushes the positioning plate 605 and the detector 606 to reset.

[0035] In a preferred embodiment of the present invention, the positioning plate 605 is provided with a rotating block, the mounting frame 601 is provided with a rotating groove, and the rotating block passes through the torsion spring and extends into the rotating groove.

[0036] In a preferred embodiment of the present invention, the mounting frame 601 is mounted on the lower part of the one side of the warning display screen 5 by a first fastener (e.g., a first bolt). Specifically, Figure 5 and Figure 7As shown, the mounting frame 601 is equipped with two L-shaped connecting rods, and the free ends of the connecting rods are connected to the lower part of the one side of the warning display screen 5 through the first bolt. After the mounting frame 601 is connected in this way, the detection assembly 6 can be stabilized.

[0037] In a preferred embodiment of the present invention, the motor 602 is firmly mounted on the bottom of the mounting bracket 601 by a second fastener (eg, a second bolt).

[0038] In a preferred embodiment of the present invention, the detector 606 is connected to the alarm 2 via wires or signals. Preferably, the alarm 2, the warning display screen 5, and the detector 606 are connected to each other via wires, and a prior art control module is arranged between the alarm 2, the warning display screen 5, and the detector 606, and the warning display screen 5 warns, detects, and prompts the weight of the special equipment.

[0039] In a preferred embodiment of the present invention, there are multiple positioning plates 605, which are arranged around the threaded rod 603 on the mounting frame 601, and a detector 606 is installed on the outer side of each positioning plate 605. In this way, the detectors 606 are distributed in four directions. The detector 606 can be a detector that can recognize human body in the prior art.

[0040] In addition, if Figures 1 to 8 As shown in , a preferred embodiment of the utility model further provides a crane assembly, which includes a crane 1, a protective plate 4 and the above-mentioned load detection warning device for the crane. The crane 1 includes a supporting body 101 and a mounting block 102. The mounting block 102 is mounted on the supporting body 101, for example, the mounting block 102 is mounted on the upper part of the supporting body 101. The protective plate 4 is mounted on one side of the mounting block 102, for example, the protective plate 4 is mounted on the upper right end of the mounting block 102. And the warning display screen 5 is mounted on one side of the protective plate 4 so as to be slidable up and down.

[0041] In a preferred embodiment of the present invention, the alarm 2 can be installed at the bottom of the supporting body 101. The alarm 2 can be a sound and light warning device in the prior art.

[0042] In a preferred embodiment of the present invention, the mounting block 102 is provided with a connecting block, and the protective plate 4 is provided with a mounting hole (or mounting groove), and the connecting block is installed in the mounting hole. For example, two rectangular connecting blocks are provided at the upper right end of the mounting block 102, and two mounting holes are provided at the upper part of the protective plate 4, and the connecting blocks pass through the mounting holes and are installed inside the mounting holes. Thus, with the cooperation of the connecting blocks, the protective plate 4 can be conveniently installed and positioned.

[0043] In a preferred embodiment of the present invention, the protective plate 4 is provided with a sliding groove in the up-down direction, and the warning display screen 5 is provided with a sliding block that slides with the sliding groove. Figure 3 As shown, one side of the protective plate 4 is provided with two T-shaped sliding grooves in the up-down direction, and the bottom of the warning display screen 5 is provided with two sliding blocks that slide in cooperation with the two sliding grooves respectively. During assembly, the sliding block extends into the sliding groove and slides up and down in the sliding groove, so that the protective plate 4 and the warning display screen 5 are limited in position under the cooperation of the sliding groove and the sliding block, so that the warning display screen 5 can slide up and down stably along the sliding groove.

[0044] In a preferred embodiment of the present invention, the crane assembly further includes a push plate 3. The crane 1 further includes a driver 103, a rope and a lifting seat 104. The driver 103 is mounted at the bottom of the mounting block 102. The upper end of the rope is wound around the drive shaft of the driver 103. Specifically, for example, the driver 103 may be a motor, and a winding wheel is mounted on its drive shaft; the rope may be a steel wire rope, which is wound around the winding wheel. The lower end of the rope is connected to a lifting seat 104 (for example, a lifting seat 104 with a hook). The push plate 3 is installed on one side of the lifting seat 104 and is located below the warning display screen 5 and the detection component 6; the push plate 3 and the warning display screen 5 are aligned; in this way, the push plate 3 moves up and down with the lifting seat 104. After the lifting seat 104 is raised, the push plate 3 will push the warning display screen 5 upward to the side of the protective plate 4, and the protective plate 4 will protect the warning display screen 5, thereby avoiding the warning display screen 5 from being exposed to the external environment for a long time, thereby slowing down the aging speed of the warning display screen 5 and reducing the frequency of cleaning and replacing the warning display screen 5.

[0045] In a preferred embodiment of the present invention, a detection component protective cover corresponding to the detection component 6 is provided on one side of the mounting block 102, and the detection component protective cover is located above the detection component 6. Therefore, after the lifting seat 104 is raised, the push plate 3 will push the detection component 6 upward to store and hide multiple key components of the detection component 6 (for example, the threaded rod 603, the extrusion plate 604, the positioning plate 605, and the detector 606) in the detection component protective cover to prevent dust and protect them.

[0046] In a preferred embodiment of the present invention, a thread groove is provided on one side of the lifting seat 104, an elastic plate is provided at the end of the push plate 3, a positioning protrusion is provided on one side of the elastic plate, the positioning protrusion extends into the thread groove, and a third fastener (e.g., a third bolt) passes through the elastic plate and the positioning protrusion in sequence to reach the thread groove and is threadedly connected with the thread groove. In this way, the positioning protrusion positions the installation position of the push plate 3, and a group of bolts are installed at the positions of the elastic plate and the thread groove, and the lifting seat 104 and the push plate 3 are firmly connected by the bolts, so that the push plate 3 can move up and down with the lifting seat 104.

[0047] The working principle of the crane assembly of a preferred embodiment of the utility model is as follows: before using the warning display screen 5 and the detection assembly 6, first assemble the various components of the crane 1, and then assemble the warning display screen 5 and the detection assembly 6 on the crane 1; specifically, first assemble the supporting body 101, the mounting block 102, the driver 103, and the lifting seat 104 in sequence, and then assemble the various components of the detection assembly 6 in sequence, and then install the detection assembly 6 on the lower part of the warning display screen 5 by bolts, and then install the warning display screen 5 on one side of the protective plate 4 by the cooperation of the sliding block and the sliding groove, and finally install the protective plate 4 on the upper right end of the mounting block 102 by the cooperation of the mounting hole and the connecting block. When the warning display screen 5 and the detection component 6 are used in conjunction with the crane 1, the equipment to be transported and lifted is connected to the hook and the lifting seat 104, and then the motor 602 is controlled to drive the threaded rod 603 to rotate. When the threaded rod 603 rotates, it drives the extrusion plate 604 to rise and fall, thereby driving the positioning plate 605 to swing. At this time, the detectors 606 at different positions swing at the same time to scan objects in a larger range nearby. Before the crane 1 lifts the equipment, the detector 606 is used to scan the vicinity. When the detector 606 detects a person approaching the crane, the alarm 2 warns the person to avoid accidental injury to the person by the crane 1. The crane 1 transports and lifts the equipment, and the warning display screen 5 warns, detects, and prompts the weight of the equipment.

[0048] It should be understood that the drawings in the embodiments of the present invention only relate to structures related to the embodiments of the present invention, and other structures can refer to the usual design. The devices and / or structures in the various embodiments provided in the present invention can be combined, modified and / or changed to form new technical solutions. In the absence of creative work, these technical solutions should also be included in the scope of protection claimed by the present invention.

[0049] A large number of specific examples are provided in the embodiments provided herein, and it should be understood that these examples are only for the purpose of describing the embodiments of the present invention in detail and are not intended to limit the present invention. The embodiments of the present invention can be practiced without these specific examples. In some embodiments, structures and / or technologies known to those skilled in the art are not shown in detail so as not to obscure the understanding of the present invention.

[0050] Although preferred embodiments of the present invention have been shown and described herein, it is readily understood by those skilled in the art that these embodiments are provided by way of example only. A variety of changes, modifications, and substitutions will now occur to those skilled in the art without departing from the present invention. It should be understood that the various alternatives to the embodiments of the present invention described herein are optionally used to implement the present invention. It is intended to define the scope of the present invention with the following claims, and thus cover the devices, structures, and equivalents thereof within the scope of these claims.

Claims

1. A load detection and warning device for a crane, characterized in that: It comprises an alarm (2), a warning display screen (5) and a detection component (6), wherein: The detection component (6) comprises: A mounting frame (601), the mounting frame (601) being mounted on one side of the warning display screen (5); A motor (602), wherein the motor (602) is mounted on the bottom of the mounting frame (601); A threaded rod (603), wherein the threaded rod (603) is connected to a drive shaft of the motor (602); An extrusion plate (604), the extrusion plate (604) being arranged on the circumferential outer side of the threaded rod (603) and threadably engaged with the threaded rod (603), the extrusion plate (604) being provided with a positioning groove; A positioning plate (605), the positioning plate (605) is swingably mounted on the mounting frame (601), a friction bevel is provided on the inner side of the positioning plate (605), and the friction bevel extends into the positioning groove; and A detector (606), the detector (606) is installed on the outside of the positioning plate (605) and connected to the alarm (2).

2. The load detection and warning device for crane according to claim 1 is characterized in that: A torsion spring is installed between the positioning plate (605) and the mounting frame (601).

3. The load detection and warning device for crane according to claim 2 is characterized in that: The positioning plate (605) is provided with a rotating block, the mounting frame (601) is provided with a rotating groove, and the rotating block passes through the torsion spring and extends into the rotating groove.

4. The load detection and warning device for crane according to claim 1, characterized in that: The mounting frame (601) is mounted on the lower part of the one side of the warning display screen (5) via a first fastener; The motor (602) is mounted on the bottom of the mounting frame (601) via a second fastener; The detector (606) is connected to the alarm (2) via wires or signals; and / or There are multiple positioning plates (605), and the multiple positioning plates (605) are arranged around the threaded rod (603) on the mounting frame (601), and a detector (606) is installed on the outer side of each positioning plate (605).

5. A crane assembly, characterized in that: The invention comprises a crane (1), a protective plate (4) and a load detection and warning device for a crane according to any one of claims 1 to 4, wherein: The crane (1) comprises a supporting body (101) and a mounting block (102) mounted on the supporting body (101); The protective plate (4) is mounted on one side of the mounting block (102); and The warning display screen (5) is mounted on one side of the protective plate (4) in a manner that it can slide up and down.

6. The crane assembly according to claim 5, characterized in that The mounting block (102) is provided with a connecting block, the protective plate (4) is provided with a mounting hole, and the connecting block is mounted in the mounting hole.

7. The crane assembly according to claim 5, characterized in that The protective plate (4) is provided with a sliding groove in the up-down direction, and the warning display screen (5) is provided with a sliding block that is slidably matched with the sliding groove.

8. The crane assembly according to claim 5, characterized in that It also includes a push plate (3), and The crane (1) further comprises a driver (103), a rope and a lifting seat (104), wherein the driver (103) is mounted at the bottom of the mounting block (102), the upper end of the rope is wound around a driving shaft of the driver (103), and the lower end of the rope is connected to the lifting seat (104); and The pushing plate (3) is installed on one side of the lifting seat (104) and is located below the warning display screen (5) and the detection component (6).

9. The crane assembly according to claim 8, characterized in that A detection component protective cover corresponding to the detection component (6) is provided on one side of the mounting block (102), and the detection component protective cover is located above the detection component (6).

10. The crane assembly according to claim 8, characterized in that A thread groove is provided on one side of the lifting seat (104), an elastic plate is provided at the end of the pushing plate (3), a positioning protrusion is provided on one side of the elastic plate, the positioning protrusion extends into the thread groove, and a third fastener passes through the elastic plate and the positioning protrusion in sequence to reach the thread groove and is threadedly connected to the thread groove.

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