Working platform

Abstract

The utility model relates to the technical field of coal mine working platforms, in particular to a working platform. Comprising a base assembly, a positioning assembly, a platform assembly and an adjusting assembly, the base assembly comprises a base and a shear fork type lifter, the positioning assembly comprises a first push rod and a second push rod, the platform assembly comprises an operation platform, the adjusting assembly comprises an adjusting box, a motor, a balancing weight and a limiting rod, and the bottom of the base is connected with a base bottom plate; the output end of the motor is connected with a rotating shaft, and one end of the second gear is connected with a linkage shaft. A second push rod is started to push the sleeve to a preset use position, then a hand wheel is held to rotate a first screw rod, a second positioning disc descends under the action of the first screw rod until the second positioning disc is attached to the ground, then a locking nut is used for locking the first screw rod, and the use position of the sleeve is adjusted through the second push rod. And the stability of the device during use is further guaranteed through a second positioning disc.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine operation platform technical field, concretely is a kind of operation platform. BACKGROUND

[0002] Coal mine underground operation content is rich and varied, covers multiple links and types of work, mainly includes coal mining, tunneling, ventilation, transportation and so on.

[0003] When coal mine underground operation, often need to use operation platform;Such as the roller of coal mining machine, cutting part, traction part and other parts are overhauled, and scraper conveyor chain replacement, sprocket maintenance, belt conveyor roller adjustment, roller replacement and other operations, need operation platform to provide stable operating space, facilitate maintenance personnel to reach the corresponding position of equipment to maintain.

[0004] When maintenance personnel stand on operation platform to maintain equipment, due to the complexity of coal mine underground operation equipment, often need multiple maintenance personnel to jointly maintain work, so when multiple maintenance personnel stand on one side of operation platform simultaneously, affect the balance of operation platform, there is certain security risk. UTILITY MODEL CONTENT

[0005] For the above problems, the purpose of the utility model is to provide an operation platform, solve the problem that due to the complexity of coal mine underground operation equipment, often need multiple maintenance personnel to jointly maintain work, so when multiple maintenance personnel stand on one side of operation platform simultaneously, affect the balance of operation platform, there is certain security risk, after the operation of starting motor, counterweight moves under the action of second screw rod and limiting rod, for moving counterweight to the opposite position where staff stand, to improve the safety of staff working on operating platform.

[0006] To achieve the above purpose, the utility model adopts the technical scheme: an operation platform, including base assembly, positioning assembly, platform assembly, adjusting assembly, the base assembly includes base seat, scissor lift, the positioning assembly includes first push rod, second push rod, the platform assembly includes operating platform, the adjusting assembly includes adjusting box, motor, counterweight, limiting rod, the bottom of base seat is connected with base bottom plate, the base bottom plate is connected with mounting bracket away from the bottom four corners of base seat, one end of mounting bracket is connected with universal wheel, the output end of second push rod is connected with sleeve, the inside of sleeve is provided with first screw rod, the bottom of first screw rod is connected with second positioning disc, the top of operating platform is connected with guardrail, the output end of motor is connected with rotating shaft, the outer wall of rotating shaft is connected with first gear, the inside of adjusting box is provided with second gear, one end of second gear is connected with linkage shaft, the end away from second gear of linkage shaft is connected with second screw rod.

[0007] The beneficial effects of this utility model are as follows: after the motor is started, the counterweight moves under the action of the second screw and the limit rod, which is used to move the counterweight to the opposite position where the worker stands, thereby improving the safety of the worker when working on the operating platform. The second push rod is used to adjust the position of the sleeve, and the second positioning plate further ensures the stability of the device during use.

[0008] To ensure the first push rod lowers the first positioning plate to contact the ground and to ensure the device remains stable during use:

[0009] As a further improvement to the above technical solution: the first push rod is installed at the bottom of the base plate, the output end of the first push rod passes through the mounting bracket and extends to connect with the first positioning plate, the universal wheel includes a self-locking brake pad, and the first push rod is an electric push rod and is electrically connected to the operation panel.

[0010] The beneficial effects of this improvement are as follows: the universal wheels are used to move the device in the underground roadway. After reaching the predetermined location, the universal wheels are positioned by the brake pads, and the operation of the first push rod is started. The first push rod causes the first positioning plate to descend and contact the ground, ensuring that the device remains stable during use.

[0011] To enable adjustment of the operating platform's height:

[0012] As a further improvement to the above technical solution: the lower end of the scissor lift is bolted to the top of the base, and the top of the scissor lift away from the base is bolted to the lower end of the operating platform. The scissor lift includes a hydraulic pump and a scissor arm.

[0013] The beneficial effects of this improvement are as follows: When the scissor lift is started, the hydraulic pump of the scissor lift draws hydraulic oil from the oil tank, pressurizes it and delivers it to the hydraulic cylinder, which pushes the piston to move, thereby driving the scissor arm of the scissor lift to rise and fall, thus realizing the adjustment of the operating platform height.

[0014] In order to adjust the position of the sleeve by means of the second push rod, a second positioning plate is used to further ensure the stability of the device during use:

[0015] As a further improvement to the above technical solution: the second push rod is an electric push rod and is electrically connected to the operation panel. The second push rod is installed on the inner side of the base, and the outer thread of the first screw is rotatably connected to a locking nut.

[0016] The beneficial effects of this improvement are as follows: after reaching the predetermined location, the second push rod is activated and the sleeve is pushed to the predetermined use position. Then, the handwheel is held to rotate the first screw. The second positioning plate descends under the action of the first screw until it is in contact with the ground. Then, the locking nut is used to lock the first screw. The use position of the sleeve is adjusted by the second push rod. The stability of the device during use is further ensured by the second positioning plate.

[0017] To allow staff to access the operating platform through the pre-reserved opening:

[0018] As a further improvement to the above technical solution: a handwheel is connected to the top of the first screw away from the second positioning plate, one end of the guardrail is reserved with an opening for entering the operating platform, and a rope is connected to the opening end of the guardrail.

[0019] The beneficial effects of this improvement are: when in use, staff can enter the operating platform through the reserved opening and then block the reserved opening with a rope.

[0020] In order for the shaft to drive the rotation of the second gear through the first gear when it rotates:

[0021] As a further improvement to the above technical solution: the motor is located inside the regulating box and is electrically connected to the operation panel; the end of the rotating shaft away from the motor is rotatably connected to the inner wall of the regulating box through a bearing; and the second gear meshes with the first gear for transmission.

[0022] The beneficial effects of this improvement are as follows: the motor starts running, the motor works and drives the shaft to rotate, and the shaft drives the second gear to rotate through the first gear when it rotates.

[0023] In order to balance the weight of the motor:

[0024] As a further improvement to the above technical solution: a stabilizing side plate is provided on the inner side of the operating platform, the end of the second screw away from the linkage shaft passes through the counterweight block and is rotatably connected to the stabilizing side plate through a bearing, the counterweight block is provided on the inner side of the operating platform and is rotatably connected to the second screw through a thread, and the linkage shaft is rotatably connected to the wall of the adjustment box through a bearing.

[0025] The beneficial effects of this improvement are as follows: when the linkage shaft rotates under the drive of the second gear, the linkage shaft drives the second screw to rotate during the rotation process, thereby realizing the movement of the counterweight. The setting of the stabilizing side plate is used to balance the weight of the motor.

[0026] In order to move the counterweight to the opposite position where the worker is standing:

[0027] As a further improvement to the above technical solution: there are two limiting rods symmetrically installed on the inner side of the operating platform, the limiting rods are slidably connected to the counterweight, and a traction ring is welded to one end of the base.

[0028] The beneficial effects of this improvement are as follows: after the motor starts running, the counterweight moves under the action of the second screw and the limit rod, which moves the counterweight to the opposite position where the worker is standing, thereby improving the safety of the worker when working on the operating platform. Attached Figure Description

[0029] Figure 1 This is a front view structural diagram of the present invention.

[0030] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0031] Figure 3 This is a schematic diagram of the operating platform of this utility model.

[0032] Figure 4 This is a top view cross-sectional structural diagram of the operating platform of this utility model.

[0033] Figure 5 for Figure 4 A magnified structural diagram at point B in the middle.

[0034] In the diagram: 1. Base assembly; 11. Base base; 12. Traction ring; 13. Base plate; 14. Mounting bracket; 15. Casters; 16. Scissor lift; 2. Positioning assembly; 21. First push rod; 22. First positioning plate; 23. Second push rod; 24. Sleeve; 25. First screw; 26. Second positioning plate; 27. Locking nut; 28. Handwheel; 3. Platform assembly; 31. Operating platform; 32. Stabilizing side plate; 33. Guardrail; 34. Rope; 4. Adjustment assembly; 41. Adjustment box; 42. Motor; 43. Rotating shaft; 44. First gear; 45. Second gear; 46. Linkage shaft; 47. Second screw; 48. Counterweight; 49. Limiting rod. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0036] like Figures 1-5As shown, a working platform includes a base assembly 1, a positioning assembly 2, a platform assembly 3, and an adjustment assembly 4. The base assembly 1 includes a base 11 and a scissor lift 16. The positioning assembly 2 includes a first push rod 21 and a second push rod 23. The platform assembly 3 includes an operating platform 31. The adjustment assembly 4 includes an adjustment box 41, a motor 42, a counterweight 48, and a limit rod 49. A base plate 13 is connected to the bottom of the base 11. Mounting brackets 14 are connected to the four corners of the bottom of the base plate 13 away from the base 11. One end of the mounting bracket 14 is connected to a caster wheel 15. The second push rod 23... The output end of rod 23 is connected to sleeve 24. A first screw 25 is provided on the inner side of sleeve 24. A second positioning plate 26 is connected to the bottom of the first screw 25. A guardrail 33 is connected to the top of the operating platform 31. The output end of motor 42 is connected to shaft 43. A first gear 44 is connected to the outer wall of shaft 43. A second gear 45 is provided on the inner side of adjustment box 41. A linkage shaft 46 is connected to one end of the second gear 45. A second screw 47 is connected to the end of linkage shaft 46 away from the second gear 45. The first push rod 21 is installed at the bottom of base plate 13. The output end of the first push rod 21 passes through the mounting bracket 14 and extends to connect with the first positioning plate 22. The universal wheel 15 includes a self-locking brake pad. The first push rod 21 is an electric push rod and is electrically connected to the operation panel. The universal wheel 15 is used to move the device in the underground roadway. After reaching the predetermined location, the brake pad positions the universal wheel 15, activating the operation of the first push rod 21. The first push rod 21 causes the first positioning plate 22 to descend and contact the ground, ensuring the device remains stable during use. The lower end of the scissor lift 16 is bolted to the top of the base 11. The scissor lift 16 is located away from the base. The top of the base 11 is bolted to the lower end of the operating platform 31. The scissor lift 16 includes a hydraulic pump and a scissor arm. When the scissor lift 16 is started, the hydraulic pump of the scissor lift 16 draws hydraulic oil from the oil tank, pressurizes it and delivers it to the hydraulic cylinder, which pushes the piston to move and drives the scissor arm of the scissor lift 16 to lift and lower, thereby realizing the adjustment of the operating height of the operating platform 31. The second push rod 23 is an electric push rod and is electrically connected to the operating panel. The second push rod 23 is installed on the inner side of the base 11. The outer side of the first screw 25 is threadedly connected to a locking nut 27.Upon reaching the designated location, activate the second push rod 23 and push the sleeve 24 to the designated position. Then, hold the handwheel 28 to rotate the first screw 25. The second positioning plate 26 descends under the action of the first screw 25 until it touches the ground. Then, use the locking nut 27 to lock the first screw 25. The second push rod 23 adjusts the position of the sleeve 24. The second positioning plate 26 further ensures the stability of the device during use. The handwheel 28 is connected to the top of the first screw 25 away from the second positioning plate 26. One end of the guardrail 33 is pre-loaded with... An opening is provided for entering the operating platform 31, and a rope 34 is connected to the opening end of the guardrail 33. In use, the operator enters the operating platform 31 through the opening and then uses the rope 34 to close the opening. The motor 42 is located inside the regulating box 41 and is electrically connected to the operating panel. The end of the rotating shaft 43 away from the motor 42 is rotatably connected to the inner wall of the regulating box 41 via a bearing. The second gear 45 meshes with the first gear 44 for transmission. When the motor 42 is started, it operates and drives the rotating shaft 43 to rotate. 3. During rotation, the first gear 44 drives the second gear 45 to rotate. A stabilizing side plate 32 is provided on the inner side of the operating platform 31. The end of the second screw 47 away from the linkage shaft 46 passes through the counterweight 48 and is rotatably connected to the stabilizing side plate 32 through a bearing. The counterweight 48 is located on the inner side of the operating platform 31 and is threadedly rotatably connected to the second screw 47. The linkage shaft 46 is rotatably connected to the wall of the adjusting box 41 through a bearing. When the linkage shaft 46 rotates under the drive of the second gear 45, the linkage shaft 46 drives the second screw 47 to rotate during the rotation process. The movement of the counterweight 48 is achieved by the stabilizing side plate 32, which helps balance the weight of the motor 42. Two limiting rods 49 are symmetrically installed on the inner side of the operating platform 31. The limiting rods 49 are slidably connected to the counterweight 48. A traction ring 12 is welded to one end of the base 11. After the motor 42 is started, the counterweight 48 moves under the action of the second screw 47 and the limiting rods 49, moving it to the opposite position to where the worker stands, thereby improving the safety of the worker when working on the operating platform 31.

[0037] The working principle of this utility model is as follows: During use, the universal wheels 15 are used to move the device within the underground roadway. After reaching the predetermined location, the universal wheels 15 are positioned using brake pads. The first push rod 21 is activated, causing the first positioning disc 22 to descend and contact the ground. The second push rod 23 is activated, pushing the sleeve 24 to the predetermined position. Then, the handwheel 28 is gripped to rotate the first screw 25, causing the second positioning disc 26 to descend under the action of the first screw 25 until it contacts the ground. The locking nut 27 is then used to lock the first screw 25. The second push rod 23 adjusts the position of the sleeve 24. The second positioning disc 26 further ensures the stability of the device during use. Workers enter the operating platform 31 through the pre-reserved opening, then use the rope 34 to block the opening, activating the scissor lift 16. The hydraulic pump of the lifting platform 16 draws hydraulic oil from the oil tank, pressurizes it, and delivers it to the hydraulic cylinder, pushing the piston to move and driving the scissor arm of the scissor lift 16 to lift and lower, thereby adjusting the operating height of the operating platform 31. The motor 42 is started and operates, driving the rotating shaft 43 to rotate. When the rotating shaft 43 rotates, it drives the second gear 45 to rotate through the first gear 44. When the linkage shaft 46 rotates under the drive of the second gear 45, the linkage shaft 46 drives the second screw 47 to rotate, thereby moving the counterweight 48. The setting of the stabilizing side plate 32 is used to balance the weight of the motor 42. The counterweight 48 moves under the action of the second screw 47 and the limit rod 49, moving the counterweight 48 to the opposite position where the worker stands, thereby improving the safety of the worker when working on the operating platform 31.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A working platform, comprising a base assembly (1), a positioning assembly (2), a platform assembly (3), and an adjustment assembly (4), wherein the base assembly (1) comprises a base (11) and a scissor lift (16), the positioning assembly (2) comprises a first push rod (21) and a second push rod (23), the platform assembly (3) comprises an operating platform (31), and the adjustment assembly (4) comprises an adjustment box (41), a motor (42), a counterweight (48), and a limit rod (49), characterized in that: The base plate (13) is connected to the bottom of the base (11). The four corners of the base plate (13) away from the base (11) are connected to the mounting bracket (14). One end of the mounting bracket (14) is connected to the universal wheel (15). The output end of the second push rod (23) is connected to the sleeve (24). The inner side of the sleeve (24) is provided with the first screw (25). The bottom of the first screw (25) is connected to the second positioning plate (26). The top of the operating platform (31) is connected to the guardrail (33). The output end of the motor (42) is connected to the shaft (43). The outer wall of the shaft (43) is connected to the first gear (44). The inner side of the adjustment box (41) is provided with the second gear (45). One end of the second gear (45) is connected to the linkage shaft (46). The end of the linkage shaft (46) away from the second gear (45) is connected to the second screw (47).

2. The operating platform according to claim 1, characterized in that: The first push rod (21) is installed at the bottom of the base plate (13). The output end of the first push rod (21) passes through the mounting bracket (14) and extends to be connected to the first positioning plate (22). The universal wheel (15) includes a self-locking brake pad. The first push rod (21) is an electric push rod and is electrically connected to the operation panel.

3. The operating platform according to claim 1, characterized in that: The lower end of the scissor lift (16) is bolted to the top of the base (11), and the top of the scissor lift (16) away from the base (11) is bolted to the lower end of the operating platform (31). The scissor lift (16) includes a hydraulic pump and a scissor arm.

4. The operating platform according to claim 1, characterized in that: The second push rod (23) is an electric push rod and is electrically connected to the operation panel. The second push rod (23) is installed on the inner side of the base (11). The outer side of the first screw (25) is threadedly connected to a locking nut (27).

5. The operating platform according to claim 1, characterized in that: A handwheel (28) is connected to the top of the first screw (25) away from the second positioning plate (26). One end of the guardrail (33) is reserved with an opening for entering the operating platform (31). A rope (34) is connected to the opening end of the guardrail (33).

6. The operating platform according to claim 1, characterized in that: The motor (42) is located inside the regulating box (41) and is electrically connected to the operation panel. The end of the rotating shaft (43) away from the motor (42) is rotatably connected to the inner wall of the regulating box (41) through a bearing. The second gear (45) meshes with the first gear (44) for transmission.

7. The operating platform according to claim 1, characterized in that: The operating platform (31) is provided with a stabilizing side plate (32) on its inner side. The end of the second screw (47) away from the linkage shaft (46) passes through the counterweight (48) and is rotatably connected to the stabilizing side plate (32) through a bearing. The counterweight (48) is provided on the inner side of the operating platform (31) and is rotatably connected to the second screw (47) through a thread. The linkage shaft (46) is rotatably connected to the wall of the adjustment box (41) through a bearing.

8. The operating platform according to claim 1, characterized in that: There are two limiting rods (49) which are symmetrically installed on the inner side of the operating platform (31). The limiting rods (49) are slidably connected to the counterweight (48). A traction ring (12) is welded to one end of the base (11).

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