Bridge crane with detection and alarm functions

Abstract

The utility model discloses a bridge crane with detection and alarm functions, which relates to the technical field of cranes and comprises a cargo boom, movable supports fixedly connected with two sides of the cargo boom and movable pulleys arranged on two sides of the movable supports, one side of each movable support is provided with a protection box capable of isolating dust and chippings, and the other side of each movable support is provided with an alarm. And a transmission motor with a transmission effect is arranged on one side of the inner wall of each protection box. Damage caused by external collision during working of the movable pulley is reduced by the aid of the protection box sleeved on the surface of the movable support, and the movable pulley can move longitudinally during hoisting by the aid of the transmission motor arranged in the protection box. Through cooperation of the extension column and the alarm button, a worker can rapidly receive an overload instruction, the phenomenon that the crane is damaged due to overload caused by a visual inspection method of the worker is avoided, the service life of the crane is prolonged, and the damage rate of the crane is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge cranes, in particular to a bridge crane with a detection and alarm function. Background Art

[0002] A bridge crane is a type of lifting equipment used horizontally above workshops, warehouses, and material yards to lift materials. Its ends rest on tall concrete columns or metal supports, resembling a bridge. The bridge crane's girder runs longitudinally along tracks laid on elevated platforms on either side, fully utilizing the space beneath it to lift materials without being obstructed by ground-level equipment. It is the most widely used and numerous type of lifting machinery.

[0003] After searching, the applicant discovered a Chinese patent application for "a bridge crane with a detection and alarm function," with publication number "CN218174450U." The patent application includes support columns and an alarm component for detecting overload. The alarm component comprises connecting blocks on either side of the support columns, a sliding groove within the connecting blocks, a connecting plate within the sliding groove, a pressure sensor on the underside of the connecting plate, and a pressure alarm on the support columns. The pressure sensor is fixedly connected to the connecting plate. By providing connecting blocks, sliding grooves, connecting plates, pressure sensors, and pressure alarms, the utility model addresses the problem of existing bridge cranes lacking a device to alert operators when lifting objects exceeding their load capacity, which can easily lead to safety accidents when forcibly lifting heavy objects.

[0004] However, when existing bridge cranes are put into use, a lot of dust and debris will form on the slide rails due to long-term operation. When the crane is performing displacement work, it is easy to increase the friction between the crane and the slide rails, reduce the lifting accuracy and even cause it to fall off. In addition, when the crane is lifting, workers have no concept of visually measuring heavy weights, which can easily lead to overloading of the crane and damage the machine. Utility Model Content

[0005] The purpose of the utility model is to provide a bridge crane with a detection alarm function to solve the problem proposed in the above background technology that when the bridge crane is put into use, a lot of dust and debris will be formed on the slide rail due to long-term operation, which may easily increase the friction between the crane and the slide rail when the crane is performing displacement work, reduce the lifting accuracy and even cause it to fall off, and when the crane is lifting, the workers have no concept of visually observing the heavy weight, which may easily lead to overloading of the crane and damage the machine.

[0006] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a bridge crane with a detection and alarm function, comprising a lifting arm and a movable bracket fixedly connected on both sides and a movable pulley provided on both sides of the movable bracket, one side of the two movable brackets is provided with a protective box capable of isolating dust and debris, one side of the inner wall of the two protective boxes is provided with a transmission motor with a transmission effect, and both sides of the bottom surface of the lifting arm are provided with a transmission plate that can quickly bear force and alarm.

[0007] Preferably, the two protection boxes are arranged at both ends of the movable bracket, the top of the movable bracket is fixedly connected to the top surface of the inner wall of the protection box, both sides of the surface of the two protection boxes are provided with a first through-hole, and the opposite side of the two protection boxes is provided with a second through-hole.

[0008] Preferably, an alarm light is provided on one side of the surface of one protection box, and alignment infrared rays are provided on opposite sides of the two protection boxes.

[0009] Preferably, the two transmission motors are fixedly connected to one side of the inner wall of the protection box, the opposite sides of the two or more movable pulleys are fixedly connected to connecting columns, and the surfaces of the multiple connecting columns are fixedly connected to pulleys.

[0010] Preferably, the plurality of pulleys are located inside the protective box and are grouped into two, the surfaces of the two pulleys are slidably connected with a transmission belt, and the output ends of the two transmission motors are fixedly connected to one side of the connecting column on one side.

[0011] Preferably, the two transmission plates are fixedly connected to both sides of the bottom surface of the crane arm, and detection grooves are provided inside the two protection boxes at the bottom of the crane arm and the transmission plates.

[0012] Preferably, the bottom surfaces of the two transmission plates and the bottom surfaces of the two detection slots are fixedly connected with a telescopic sleeve column, and the surfaces of the two telescopic sleeve columns are sleeved with springs, and the springs are also located on the opposite side of the transmission plate and the detection slot.

[0013] Preferably, the bottom surfaces of the two detection grooves are located on both sides of the telescopic sleeve column and are fixedly connected with detection columns, extension grooves are opened inside the multiple detection columns, alarm buttons are provided on the bottom surfaces of the multiple extension grooves, extension columns are provided on both sides of the bottom surfaces of the two transmission plates, and the extension columns extend to the inside of the extension grooves.

[0014] The technical effects and advantages of the utility model are as follows: the utility model utilizes a protective box sleeved on the surface of the movable bracket to reduce the damage caused to the movable pulley due to external collision during operation, and utilizes the transmission motor provided inside the protective box to enable the movable pulley to produce the effect of lifting longitudinal movement, and in the case of overload of the crane arm, the cooperation of the extension column and the alarm button is utilized to enable the workers to quickly receive the overload instruction, thereby avoiding the phenomenon that the workers form overload by visual inspection and thus damage the crane, thereby increasing the service life of the crane and reducing the damage rate of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the partially cutaway three-dimensional structure of the present utility model.

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the protection box of the present invention from a top view.

[0018] Figure 4 This is a schematic diagram of the front cross-sectional structure of the protection box of the present invention.

[0019] Figure 5 For the utility model Figure 4 Schematic diagram of the enlarged structure of part A in the middle.

[0020] In the figure: 1. Lifting arm; 2. Moving bracket; 3. Moving pulley; 4. Protection box; 401. First through-hole; 402. Second through-hole; 403. Alarm light; 404. Alignment infrared ray; 5. Transmission motor; 501. Connecting column; 502. Pulley; 503. Transmission belt; 6. Transmission plate; 601. Detection slot; 602. Telescopic sleeve column; 603. Spring; 604. Extension column; 605. Detection column; 606. Extension slot; 607. Alarm button. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides Figure 1-5The bridge crane with detection and alarm functions shown in the figure includes a boom 1 and mobile supports 2 fixedly connected on both sides and mobile pulleys 3 provided on both sides of the mobile supports 2. One side of the two mobile supports 2 is provided with a protective box 4 that can isolate dust and debris, and one side of the inner wall of the two protective boxes 4 is provided with a transmission motor 5 with a transmission effect. Both sides of the bottom surface of the boom 1 are provided with a transmission plate 6 that can quickly bear force and alarm. The utility model uses the protection box 4 sleeved on the surface of the mobile support 2 to reduce the damage caused by external collision to the mobile pulley 3 during operation, and uses the transmission motor 5 provided inside the protection box 4 to enable the mobile pulley 3 to produce the effect of lifting longitudinal movement, and when the boom 1 is overloaded, the extension column 604 and the alarm button 607 are used to cooperate to enable workers to quickly receive the overload instruction, thereby avoiding the phenomenon of workers visually forming overload and damaging the crane, thereby improving the service life of the crane and reducing the damage rate of the crane.

[0023] like Figure 1-3 As shown, the two protection boxes 4 are both arranged at the two ends of the mobile bracket 2, the top of the mobile bracket 2 is fixedly connected to the top surface of the inner wall of the protection box 4, and the two protection boxes 4 are provided with a first through-hole 401 on both sides of the surface, and the two protection boxes 4 are provided with a second through-hole 402 on the opposite side. An alarm light 403 is provided on one side of the surface of one protection box 4. The alarm light 403 can quickly receive the command of the alarm button 607 to remind the staff to conduct maintenance. The opposite side of the two protection boxes 4 is provided with an alignment infrared ray 404. The alignment infrared ray 404 can monitor whether the protection boxes 4 on both sides are in the same position when the protection boxes 4 on both sides move. Straight line, so as to facilitate better lifting, the two transmission motors 5 are fixedly connected to one side of the inner wall of the protection box 4, and the opposite sides of the two multiple mobile pulleys 3 are fixedly connected with a connecting column 501, and the surfaces of the multiple connecting columns 501 are fixedly connected with a pulley 502. The multiple pulleys 502 are located inside the protection box 4. Two are grouped together, and the surfaces of the two pulleys 502 are slidably connected with a transmission belt 503. The output ends of the two transmission motors 5 are respectively fixedly connected to one side of the connecting column 501 on one side. The setting of the transmission belt 503 can make the two mobile pulleys 3 inside the protection box 4 produce synchronous and unidirectional movement.

[0024] like Figure 4-5As shown, the two transmission plates 6 are fixedly connected to both sides of the bottom surface of the boom 1, and the two protection boxes 4 are located at the bottom of the boom 1 and the transmission plate 6. The detection groove 601 is used to accommodate the telescopic sleeve column 602. The bottom surface of the two transmission plates 6 and the bottom surface of the two detection grooves 601 are fixedly connected with the telescopic sleeve column 602. The surface of the two telescopic sleeve columns 602 is sleeved with a spring 603. At the same time, the spring 603 is also located on the opposite side of the transmission plate 6 and the detection groove 601. The bottom surface of the detection groove 601 is located on both sides of the telescopic sleeve column 602, and detection columns 605 are fixedly connected. Extension grooves 606 are opened inside the multiple detection columns 605, and the bottom surfaces of the multiple extension grooves 606 are provided with alarm buttons 607. Extension columns 604 are provided on both sides of the bottom surfaces of the two transmission plates 6, and the extension columns 604 extend to the inside of the extension grooves 606. The extension columns 604 will contact the alarm button 607 according to the displacement of the transmission plate 6, thereby producing a quick alarm effect.

[0025] Working principle of the utility model: When in use, the utility model uses the transmission motor 5 provided inside the protection box 4 to drive one of the connecting columns 501 to rotate, thereby causing the movable pulley 3 to rotate and move, and one side of the movable pulley 3 on both sides is fixedly connected to the connecting column 501. The two connecting columns 501 are driven by the transmission belt 503, so that the two movable pulleys inside the protection box 4 produce synchronous and equidirectional movement. The slide rail provided at the bottom of the movable pulley 3 is used to perform longitudinal stable movement of the crane.

[0026] When the crane's boom 1 is lifting heavy objects, if the lifted heavy objects exceed the load-bearing range of the boom 1, the boom 1 will be deformed. Once deformed, the two sides of the crane will squeeze the transmission plate 6 downward. When the transmission plate 6 moves downward, the transmission plate 6 will first use the extrusion deformation of the spring 603 provided between the transmission plate 6 and the detection groove 601 to determine whether the weight damages the lifting crane. Once it exceeds the force range of the spring 603, the extension columns 604 provided on both sides of the bottom surface of the transmission plate 6 will be inserted into the interior of the detection column 605, and will be connected to the alarm button 607 provided on the bottom surface of the extension groove 606. There are four alarm buttons 607 in total. If one of the alarms occurs, the machine should stop working immediately and conduct inspections. The original text highlights the innovative structure and does not elaborate on the existing technology.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bridge crane with a detection alarm function, comprising a lifting arm (1) and a movable bracket (2) fixedly connected on both sides and a movable pulley (3) provided on both sides of the movable bracket (2), characterized in that: A protection box (4) capable of isolating dust and debris is provided on one side of the two movable brackets (2), a transmission motor (5) with a transmission effect is provided on one side of the inner wall of the two protection boxes (4), and transmission plates (6) capable of quickly receiving force and generating an alarm are provided on both sides of the bottom surface of the lifting arm (1).

2. The bridge crane with detection and alarm function according to claim 1, characterized in that: The two protection boxes (4) are both arranged at the two ends of the movable bracket (2); the top end of the movable bracket (2) is fixedly connected to the top surface of the inner wall of the protection box (4); both sides of the surface of the two protection boxes (4) are provided with a first through opening (401); and the opposite side of the two protection boxes (4) is provided with a second through opening (402).

3. The bridge crane with detection and alarm function according to claim 2, characterized in that: A warning light (403) is provided on one side of the surface of the protection box (4), and alignment infrared rays (404) are provided on opposite sides of the two protection boxes (4).

4. The bridge crane with detection and alarm function according to claim 1, characterized in that: The two transmission motors (5) are fixedly connected to one side of the inner wall of the protection box (4), the opposite sides of the two or more moving pulleys (3) are fixedly connected to a connecting column (501), and the surfaces of the plurality of connecting columns (501) are fixedly connected to a pulley (502).

5. The bridge crane with detection and alarm function according to claim 4, characterized in that: The plurality of pulleys (502) are located inside the protection box (4), two of which form a group, and the surfaces of the two pulleys (502) are slidably connected to a transmission belt (503), and the output ends of the two transmission motors (5) are fixedly connected to one side of the connection column (501) on one side.

6. The bridge crane with detection and alarm function according to claim 1, characterized in that: The two transmission plates (6) are fixedly connected to the two sides of the bottom surface of the lifting arm (1), and the two protection boxes (4) are provided with detection grooves (601) at the bottom of the lifting arm (1) and the transmission plates (6).

7. The bridge crane with detection and alarm function according to claim 6, characterized in that: The bottom surfaces of the two transmission plates (6) and the bottom surfaces of the two detection slots (601) are fixedly connected with a telescopic sleeve column (602), and the surfaces of the two telescopic sleeve columns (602) are sleeved with a spring (603), and the spring (603) is also located on the opposite side of the transmission plate (6) and the detection slot (601).

8. The bridge crane with detection and alarm function according to claim 7, characterized in that: The bottom surfaces of the two detection slots (601) are located on both sides of the telescopic sleeve column (602), and are fixedly connected with detection columns (605); extension slots (606) are provided inside the plurality of detection columns (605); alarm buttons (607) are provided on the bottom surfaces of the plurality of extension slots (606); and extension columns (604) are provided on both sides of the bottom surfaces of the two transmission plates (6), and the extension columns (604) extend into the interior of the extension slots (606).

Images