A quick-assembly hoisting and lifting platform for confined spaces

Abstract

This utility model discloses a confined space rapid assembly hoisting platform, relating to the technical field of hoisting platforms. It includes a base plate and a first support frame. The first support frame is fixedly mounted on one side of the upper surface of the base plate. A second support frame is fixedly mounted on one side of the upper surface of the first support frame. A first support arm is fixedly mounted inside the second support frame. The upper end of the first support arm is rotatably connected to the second support arm via a rotating rod. A guide wheel is connected to the other end of the second support arm. A winch is fixedly mounted on the upper surface of the first support frame. A hoisting rope is abutted against the upper side of the guide wheel. One end of the hoisting rope is fixedly connected to the rotating shaft of the winch, and the other end is fixedly connected to a hook. A support plate is fixedly mounted on the upper surface of the base plate, located on one side of the first support frame. This utility model allows for adjustment of the hoisting apex height, facilitating access to spaces of different heights.

Description

Technical Field

[0001] This utility model relates to the field of hoisting and lifting platform technology, specifically to a confined space rapid assembly hoisting and lifting platform. Background Technology

[0002] In industrial production, construction, and other fields, it is often necessary to work in confined spaces, such as inside pipelines or small equipment rooms. When performing hoisting operations in these confined spaces, traditional hoisting equipment is often difficult to enter due to its large size, complicated assembly, and fixed hoisting height, making it unable to adapt to confined spaces of varying heights, which brings great inconvenience to the operation.

[0003] While some existing small lifting platforms can enter confined spaces, most of them cannot adjust the height of the lifting apex. When it is necessary to work in confined spaces at different heights, it is necessary to replace the lifting equipment with different specifications, which not only increases costs but also reduces work efficiency. Utility Model Content

[0004] In view of the problems existing in the above-mentioned confined space rapid assembly hoisting and lifting platforms, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a quick-assembly hoisting platform for confined spaces, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A confined space rapid assembly hoisting platform includes a base plate and a first support frame. The first support frame is fixedly mounted on one side of the upper surface of the base plate. A second support frame is fixedly mounted on one side of the upper surface of the first support frame. A first support arm is fixedly mounted inside the second support frame. The upper end of the first support arm is rotatably connected to the second support arm via a rotating rod. The other end of the second support arm is connected to a guide wheel. A winch is fixedly mounted on the upper surface of the first support frame. A hoisting rope is abutted against the upper side of the guide wheel. One end of the hoisting rope is fixedly connected to the rotating shaft of the winch, and the other end of the hoisting rope is fixedly connected to a hook. A support plate is fixedly mounted on the upper surface of the base plate and on one side of the first support frame. The upper end of the support plate is fixedly connected to the first support frame. A fixed shell is fixedly sleeved in the middle of the support plate. The fixed shell contains a first transmission mechanism that drives the second support arm to rotate around the rotating rod.

[0008] Preferably, the first transmission mechanism includes a push rod and a round pin. A slider is slidably disposed inside the fixed shell. The push rod is fixedly disposed on the upper side of the slider. The upper end of the push rod extends to the rear side of the second support arm. A strip-shaped opening is opened on the side wall of the second support arm. The round pin is slidably disposed on the inner side of the strip-shaped opening. The rear end of the round pin is fixedly connected to the push rod. A second transmission mechanism for driving the slider to move is disposed inside the fixed shell.

[0009] Preferably, the second transmission mechanism includes a lead screw and a transmission rod. The lead screw is rotatably disposed inside one side of the fixed housing. One side of the slider is threadedly connected to the lead screw. A first bevel gear is fixedly sleeved at the lower end of the lead screw. The transmission rod is rotatably sleeved inside the lower side of the fixed housing. A second bevel gear is fixedly sleeved at the end of the transmission rod near the lead screw. The first bevel gear and the second bevel gear are meshed and connected.

[0010] Preferably, a handle is fixedly sleeved on one outer end of the transmission rod.

[0011] Preferably, the rod wall of the round pin and the side of the first support arm away from the push rod are fixedly fitted with an anti-detachment ring.

[0012] Preferably, the cross-sections of both the slider and the inner wall of the fixed shell are rectangular, and the side wall of the slider abuts against the inner wall of the fixed shell.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] This invention utilizes a rotating handle to drive a transmission rod to rotate a second bevel gear, which in turn drives a first bevel gear to rotate. This, in turn, causes a lead screw to rotate, which in turn moves a slider, thus moving a push rod. The push rod then causes a round pin to slide within a slot, thereby pushing the second support arm to rotate around a rotating rod as an axis. This allows for adjustment of the guide wheel's height, enabling the device's hoisting apex to be lowered, facilitating access to spaces at different heights. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a structural schematic diagram of a confined space rapid assembly hoisting and lifting platform proposed in this utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram of part A in the middle section;

[0018] Figure 3 for Figure 1 A magnified schematic diagram of the structure of part B in the middle section.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Base; 2. First support frame; 3. Second support frame; 4. Winch; 5. First support arm; 6. Rotating rod; 7. Second support arm; 8. Guide wheel; 9. Lifting rope; 10. Hook; 11. Support plate; 12. Fixed shell; 13. Lead screw; 14. First bevel gear; 15. Transmission rod; 16. Second bevel gear; 17. Handle; 18. Slider; 19. Push rod; 20. Round pin; 21. Anti-detachment ring. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] This utility model discloses a confined space rapid assembly hoisting and lifting platform.

[0023] Reference Figure 1-3 A confined space rapid assembly hoisting platform includes a base plate 1 and a first support frame 2. The first support frame 2 is fixedly installed on one side of the upper surface of the base plate 1. A second support frame 3 is fixedly installed on one side of the upper surface of the first support frame 2. A first support arm 5 is fixedly installed inside the second support frame 3. The upper end of the first support arm 5 is rotatably connected to a second support arm 7 via a rotating rod 6. The other end of the second support arm 7 is connected to a guide wheel 8. A winch 4 is fixedly installed on the upper surface of the first support frame 2. A hoisting rope 9 is abutted against the upper side of the guide wheel 8. One end of the hoisting rope 9 is fixedly connected to the rotating shaft of the winch 4, and the other end of the hoisting rope 9 is fixedly connected to a hook 10. A support plate 11 is fixedly installed on the upper surface of the base plate 1 and on one side of the first support frame 2. The upper end of the support plate 11 is fixedly connected to the first support frame 2. A fixed shell 12 is fixedly sleeved in the middle of the support plate 11. The fixed shell 12 is provided with a first transmission mechanism that drives the second support arm 7 to rotate around the rotating rod 6.

[0024] Reference Figure 1-3The first transmission mechanism includes a push rod 19 and a round pin 20. A slider 18 is slidably arranged inside the fixed housing 12. The push rod 19 is fixedly arranged on the upper side of the slider 18. The upper end of the push rod 19 extends to the rear side of the second support arm 7. A strip-shaped opening is opened on the side wall of the second support arm 7. The round pin 20 is slidably arranged inside the strip-shaped opening. The rear end of the round pin 20 is fixedly connected to the push rod 19. An anti-detachment ring 21 is fixedly sleeved on the rod wall of the round pin 20 on the side of the first support arm 5 away from the push rod 19 to prevent the round pin 20 from slipping out of the strip-shaped opening as much as possible. The second transmission mechanism that drives the slider 18 to move is arranged inside the fixed housing 12.

[0025] Reference Figure 1-3 The second transmission mechanism includes a lead screw 13 and a transmission rod 15. The lead screw 13 is rotatably disposed inside one side of the fixed housing 12. One side of the slider 18 is threadedly connected to the lead screw 13. The lower end of the lead screw 13 is fixedly sleeved with a first bevel gear 14. The transmission rod 15 is rotatably sleeved inside the lower end of the fixed housing 12. The end of the transmission rod 15 near the lead screw 13 is fixedly sleeved with a second bevel gear 16. The first bevel gear 14 and the second bevel gear 16 are meshed. The outer end of the transmission rod 15 is fixedly sleeved with a handle 17 to facilitate rotation of the transmission rod 15. The cross-sections of the slider 18 and the inner wall of the fixed housing 12 are both rectangular. The side wall of the slider 18 abuts against the inner wall of the fixed housing 12, so that the slider 18 cannot rotate, that is, it can slide stably.

[0026] In this utility model, before the device enters the confined space, the height of the hoisting apex can be adjusted according to the height of the space: rotate the handle 17, the handle 17 drives the transmission rod 15 and the second bevel gear 16 to rotate, the second bevel gear 16 meshes with the first bevel gear 14 to drive the lead screw 13 to rotate in the fixed shell 12. Since the slider 18 and the inner wall of the fixed shell 12 are both rectangular structures, the slider 18 cannot rotate with the lead screw 13, but can only slide up and down along the inner wall of the fixed shell 12. The slider 18 drives the push rod 19 to move synchronously.

[0027] The pin 20 at the upper end of the push rod 19 slides within the slot of the second support arm 7, pushing the second support arm 7 to rotate around the rotating rod 6 as an axis. When the slider 18 rises, the push rod 19 pushes the second support arm 7 to rotate upward, raising the height of the guide wheel 8. When the slider 18 falls, the push rod 19 pulls the second support arm 7 to rotate downward, lowering the height of the guide wheel 8, until it is adjusted to a position suitable for the height of the confined space. The anti-detachment ring 21 prevents the pin 20 from slipping out of the slot, ensuring stable transmission.

[0028] After entering the space, the winch 4 operates, driving the hook 10 to rise and fall through the hoisting rope 9 and guide wheel 8 to achieve hoisting operations. The support plate 11, the first support frame 2, and the base plate 1 form a triangular support structure, enhancing the overall stability of the device. The rotating connection design of the first support arm 5 and the second support arm 7 ensures structural strength while enabling flexible adjustment of the hoisting apex height, adapting to the needs of entering and exiting spaces with different heights and for operations. It is easy to operate and requires no complicated assembly.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A confined space rapid assembly hoisting platform, comprising a base plate (1) and a first support frame (2), characterized in that, The first support frame (2) is fixedly installed on one side of the upper surface of the base plate (1). A second support frame (3) is fixedly installed on one side of the upper surface of the first support frame (2). A first support arm (5) is fixedly installed inside the second support frame (3). The upper end of the first support arm (5) is rotatably connected to the second support arm (7) through a rotating rod (6). The other end of the second support arm (7) is connected to a guide wheel (8). A winch (4) is fixedly installed on the upper surface of the first support frame (2). A hoist is abutted against the upper side of the guide wheel (8). The rope (9) is fixedly connected at one end to the rotating shaft of the winch (4), and the other end of the rope (9) is fixedly connected to the hook (10). A support plate (11) is fixedly installed on the upper surface of the base plate (1) and on one side of the first support frame (2). The upper end of the support plate (11) is fixedly connected to the first support frame (2). A fixed shell (12) is fixedly sleeved in the middle of the support plate (11). A first transmission mechanism is provided inside the fixed shell (12) to drive the second support arm (7) to rotate around the rotating rod (6).

2. The confined space rapid assembly hoisting platform according to claim 1, characterized in that, The first transmission mechanism includes a push rod (19) and a round pin (20). A slider (18) is slidably arranged inside the fixed shell (12). The push rod (19) is fixedly arranged on the upper side of the slider (18). The upper end of the push rod (19) extends to the rear side of the second support arm (7). A strip-shaped opening is provided on the side wall of the second support arm (7). The round pin (20) is slidably arranged on the inner side of the strip-shaped opening. The rear end of the round pin (20) is fixedly connected to the push rod (19). A second transmission mechanism that drives the slider (18) to move is provided inside the fixed shell (12).

3. The confined space rapid assembly hoisting platform according to claim 2, characterized in that, The second transmission mechanism includes a lead screw (13) and a transmission rod (15). The lead screw (13) is rotatably disposed inside one side of the fixed shell (12). One side of the slider (18) is threadedly connected to the lead screw (13). A first bevel gear (14) is fixedly sleeved at the lower end of the lead screw (13). The transmission rod (15) is rotatably sleeved inside the lower side of the fixed shell (12). A second bevel gear (16) is fixedly sleeved at the end of the transmission rod (15) near the lead screw (13). The first bevel gear (14) and the second bevel gear (16) are meshed and connected.

4. The confined space rapid assembly hoisting platform according to claim 3, characterized in that, A handle (17) is fixedly sleeved on one side of the transmission rod (15).

5. The confined space rapid assembly hoisting platform according to claim 2, characterized in that, The rod wall of the round pin (20) and the side of the first support arm (5) away from the push rod (19) are fixedly fitted with an anti-detachment ring (21).

6. The confined space rapid assembly hoisting platform according to claim 2, characterized in that, The cross-sections of the slider (18) and the inner wall of the fixed shell (12) are both rectangular, and the side wall of the slider (18) abuts against the inner wall of the fixed shell (12).

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