A small mobile gantry crane

Abstract

The utility model discloses a small -size movable gantry crane relates to crane technical field, specifically a small -size movable gantry crane, including crossbeam and cleaning brush, the top of crossbeam is provided with track groove, the inside of track groove is provided with hoist car, and both sides of hoist car are evenly installed with L shaped board, and one side of L shaped board is installed with fixed block and contraction spring respectively, and the inside of fixed block is rotatably connected with the pressing plate through the axle rod, and the bottom of pressing plate is installed with magic tape public post. The small -size movable gantry crane has the effect of improving the stability of hoist car movement, and the inside dust and sundries of track groove are conveniently pushed through the movement of cleaning brush with hoist car, avoid affecting the movement of hoist car, and through the cooperation between magic tape public post and magic tape female post, conveniently replace cleaning brush, reach the purpose that improves practicality.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, specifically a small mobile gantry crane. Background Technology

[0002] In industrial production, warehousing and logistics, and small-scale construction, early lifting operations mainly relied on large gantry cranes, truck cranes, forklifts, or manual handling. However, these methods have significant shortcomings: Large lifting equipment, such as stationary gantry cranes and tower cranes, while having a large lifting capacity, are bulky, fixed in place, and cannot be moved flexibly in confined spaces or multiple areas. They are also costly and complex to assemble and disassemble, making them suitable only for large construction sites or fixed work points, and unable to meet the flexible operation needs of small locations. Small mobile gantry cranes retain the core functions of lifting equipment while overcoming the limitations of traditional equipment, becoming a key piece of equipment to fill the gap in demand for small, flexible lifting.

[0003] In existing small mobile gantry cranes, the lifting trolley moves inside the track groove. When there are debris inside the track groove, it affects the movement of the lifting trolley. In addition, existing small mobile gantry cranes have poor stability when supporting the crane. The present invention is a small mobile gantry crane that solves the above problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a small mobile gantry crane, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: A small mobile gantry crane includes a crossbeam and a cleaning brush. A track groove is provided on the top of the crossbeam, and a lifting trolley is installed inside the track groove. L-shaped plates are installed on both sides of the lifting trolley. A fixing block and a retraction spring are respectively installed on one side of the L-shaped plate. A pressure plate is rotatably connected to the inside of the fixing block through a shaft. A male Velcro fastener is installed at the bottom of the pressure plate. A female Velcro fastener is provided on the top of the cleaning brush. A support frame is installed at the bottom of the crossbeam. A caster wheel is installed at the bottom of the support frame. An adjustment box is installed on the top of the support frame. A servo motor is installed on the top of the adjustment box. A threaded rod with the same center as the output shaft of the servo motor is installed at the output end of the servo motor. A threaded ring block is connected to the outer surface of the threaded rod. Positioning sliders are installed at the front and rear of the threaded ring block. A lifting rod is installed at the bottom of the threaded ring block. A support plate is installed at the bottom of the lifting rod. A strip plate is installed on the inner wall of the adjustment box.

[0008] Optionally, the end of the retraction spring furthest from the L-shaped plate is fixedly connected to the pressure plate, and the position of the fixing block is higher than the position of the retraction spring.

[0009] Optionally, the male and female hook and loop fasteners are bonded together, and the cleaning brush is positioned inside the track groove.

[0010] Optionally, the strip plate has a positioning groove inside with the front and back direction as the depth direction and the up and down direction as the length direction. The end of the positioning slider is located inside the positioning groove, and the positioning slider can slide along the length direction of the positioning groove.

[0011] Optionally, the end of the threaded rod away from the servo motor is rotatably connected to the inner bottom wall of the regulating box via a bearing, and the threaded ring block is located inside the regulating box.

[0012] Optionally, the support plate is located below the support frame, and there are several cleaning brushes, with the cleaning brushes located on both sides of the crane trolley.

[0013] This utility model provides a small mobile gantry crane, which has the following advantages:

[0014] 1. This small mobile gantry crane, through the configuration of a cleaning brush, track groove, lifting trolley, L-shaped plate, fixing block, retraction spring, pressure plate, male and female Velcro fasteners, enables easy cleaning of debris in the track and improves the stability of the lifting trolley movement. The cleaning brush moves with the lifting trolley, easily pushing away dust and debris in the track groove, avoiding affecting the movement of the lifting trolley. Furthermore, the cooperation between the male and female Velcro fasteners facilitates the replacement of the cleaning brush, thereby improving practicality.

[0015] 2. This small mobile gantry crane, through the configuration of a support frame, casters, adjustment box, servo motor, threaded rod, threaded ring block, positioning slider, lifting rod, support plate, and strip plate, achieves improved stability during support. The casters facilitate movement, and the cooperation of the threaded rod and threaded ring block allows the support plate to move downwards to provide support, improving stability during support and preventing the crane from shifting during lifting, thus enhancing practicality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a structural schematic diagram of the present invention in frontal cross-section;

[0018] Figure 3 This utility model Figure 2Enlarged structural diagram at point A;

[0019] Figure 4 This is a partial cross-sectional view of the structure of this utility model.

[0020] Figure 5 This is a side view sectional diagram of the present invention.

[0021] In the diagram: 1. Crossbeam; 2. Cleaning brush; 3. Track groove; 4. Lifting trolley; 5. L-shaped plate; 6. Fixing block; 7. Retraction spring; 8. Pressure plate; 9. Male Velcro fastener; 10. Female Velcro fastener; 11. Support frame; 12. Casters; 13. Adjustment box; 14. Servo motor; 15. Threaded rod; 16. Threaded ring block; 17. Positioning slider; 18. Lifting rod; 19. Support plate; 20. Strip plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Please see Figures 1 to 5 This utility model provides a technical solution: a small mobile gantry crane, including a crossbeam 1 and a cleaning brush 2. A track groove 3 is provided at the top of the crossbeam 1, and a lifting trolley 4 is installed inside the track groove 3. L-shaped plates 5 are installed on both sides of the lifting trolley 4. A fixing block 6 and a retraction spring 7 are respectively installed on one side of each L-shaped plate 5. A pressure plate 8 is rotatably connected inside the fixing block 6 via a shaft. A male Velcro fastener 9 is installed at the bottom of the pressure plate 8. A female Velcro fastener 10 is provided at the top of the cleaning brush 2. A support frame 11 is installed at the bottom of the crossbeam 1. The bottom of the support frame 11 is equipped with casters 12, the top of the support frame 11 is equipped with an adjustment box 13, the top of the adjustment box 13 is equipped with a servo motor 14, the output end of the servo motor 14 is equipped with a threaded rod 15 with the same center as the output end shaft of the servo motor 14, the outer surface of the threaded rod 15 is connected to a threaded ring block 16, the front and rear of the threaded ring block 16 are equipped with positioning sliders 17, the bottom of the threaded ring block 16 is equipped with a lifting rod 18, the bottom of the lifting rod 18 is equipped with a support plate 19, and the inner wall of the adjustment box 13 is equipped with a strip plate 20.

[0025] Specifically, the elastic contraction force of the spring 7 causes the cleaning brush 2 to come into close contact with the inner bottom wall of the track groove 3, making it easy for the cleaning brush 2 to move with the crane trolley 4 to clean the dust and debris in the track groove 3.

[0026] Please see Figures 2 to 3The end of the retraction spring 7 away from the L-shaped plate 5 is fixedly connected to the pressure plate 8, and the position of the fixing block 6 is higher than the position of the retraction spring 7.

[0027] Specifically, the combination of male hook and loop fastener 9 and female hook and loop fastener 10 facilitates the replacement of cleaning brush 2.

[0028] Please see Figures 2 to 3 The male hook and loop fastener 9 and the female hook and loop fastener 10 are bonded together, and the cleaning brush 2 is located inside the track groove 3.

[0029] Specifically, the cooperation between the positioning slider 17 and the positioning groove improves the stability of the lifting and lowering movement of the threaded ring block 16 and the support plate 19.

[0030] Please see Figure 5 The strip plate 20 has a positioning groove inside with the front and back direction as the depth direction and the up and down direction as the length direction. The end of the positioning slider 17 is located inside the positioning groove, and the positioning slider 17 can slide along the length direction of the positioning groove.

[0031] Specifically, the lifting plate can be easily lifted and moved by the cooperation of the threaded rod 15 and the threaded ring block 16.

[0032] Please see Figures 1 to 5 The end of the threaded rod 15 away from the servo motor 14 is rotatably connected to the inner bottom wall of the regulating box 13 through a bearing, and the threaded ring block 16 is located inside the regulating box 13.

[0033] Specifically, the support plate 19 is located below the support frame 11 for convenient support, and the cleaning brush 2 cleans both sides of the lifting trolley 4.

[0034] Please see Figures 1 to 5 The support plate 19 is located below the support frame 11, and there are several cleaning brushes 2, which are located on both sides of the crane trolley 4.

[0035] During use, the lifting trolley 4 moves inside the track groove 3, and the cleaning brush 2 moves with the lifting trolley 4 to easily remove dust and debris from the track groove 3, avoiding interference with the movement of the lifting trolley 4. When replacing the cleaning brush 2, rotate the pressure plate 8 upwards, so that the pressure plate 8 rotates around the rotational connection between the pressure plate 8 and the fixing block 6, so that the cleaning brush 2 moves away from the track groove 3, causing the tension spring 7 to be stretched, and then the male hook and loop fastener 9 and the female hook and loop fastener 10 are separated, making it easy to remove and replace the cleaning brush 2. When replacing the cleaning brush 2, make sure the male hook and loop fastener 9 and the female hook and loop fastener 10 are bonded together, and then loosen the pressure plate 8, allowing the elasticity of the tension spring 7 to release the pressure plate 8. The contraction force causes the cleaning brush 2 to abut against the inner wall of the track groove 3, facilitating subsequent cleaning of dust and debris from the track groove 3. The universal wheels 12 facilitate the movement of the crane. When lifting the support, the servo motor 14 drives the threaded rod 15 to rotate. The threaded rod 15 is connected to the threaded ring block 16, and the end of the positioning slider 17 is located inside the positioning groove on the strip plate 20. This causes the threaded ring block 16 to drive the positioning slider 17, the lifting rod 18, and the support plate 19 to move downwards. The positioning slider 17 moves downwards along the length of the positioning groove, causing the support plate 19 to abut against the ground, improving the stability of the support during lifting, preventing the crane from shifting its position during lifting, and improving practicality.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A small mobile gantry crane, comprising a crossbeam and a cleaning brush, characterized in that: The top of the crossbeam has a track groove, inside which a lifting trolley is installed. L-shaped plates are installed on both sides of the lifting trolley. A fixing block and a retraction spring are installed on one side of each L-shaped plate. A pressure plate is rotatably connected to the fixing block via a shaft. A male Velcro fastener is installed at the bottom of the pressure plate. A female Velcro fastener is installed at the top of the cleaning brush. A support frame is installed at the bottom of the crossbeam, with casters at its bottom. An adjustment box is installed at the top of the support frame, and a servo motor is installed at the top of the adjustment box. A threaded rod with the same center as the servo motor's output shaft is installed at the output end of the servo motor. A threaded ring block is connected to the outer surface of the threaded rod. Positioning sliders are installed at the front and rear of the threaded ring block. A lifting rod is installed at the bottom of the threaded ring block, and a support plate is installed at the bottom of the lifting rod. A strip plate is installed on the inner wall of the adjustment box.

2. A small mobile gantry crane according to claim 1, characterized in that: The end of the retraction spring furthest from the L-shaped plate is fixedly connected to the pressure plate, and the position of the fixing block is higher than the position of the retraction spring.

3. A small mobile gantry crane according to claim 1, characterized in that: The male and female hook and loop fasteners are bonded together, and the cleaning brush is located inside the track groove.

4. A small mobile gantry crane according to claim 1, characterized in that: The strip plate has a positioning groove inside, with the front and back direction as the depth direction and the up and down direction as the length direction. The end of the positioning slider is located inside the positioning groove, and the positioning slider can slide along the length direction of the positioning groove.

5. A small mobile gantry crane according to claim 1, characterized in that: The end of the threaded rod away from the servo motor is rotatably connected to the inner bottom wall of the regulating box via a bearing, and the threaded ring block is located inside the regulating box.

6. A small mobile gantry crane according to claim 1, characterized in that: The support plate is located below the support frame, and there are several cleaning brushes, which are located on both sides of the crane trolley.

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