Hoisting machine for house building construction

Abstract

The utility model discloses a hoisting machine for house building construction, which comprises a base and a support rod fixedly arranged at one end of the base. A sliding rod is slidably connected into the upper end of the supporting rod. A plurality of concave teeth are arranged on the sliding rod; rotating shafts are rotationally arranged at the upper parts of the supporting rods corresponding to the concave teeth; a gear is arranged on the rotating shaft and is meshed with the concave teeth; the two ends of the rotating shaft are rotationally connected with a first fixing plate and a second fixing plate through bearings; a motor is arranged on the side, away from the gear, of the first fixing plate. According to the lifting machine, the structures such as the sliding rod, the concave teeth, the ratchet wheel, the gear and the motor are arranged, the lifting function of the sliding rod is realized by operating the motor, controlling the ratchet wheel and the gear to rotate clockwise and anticlockwise and matching the gear with the concave teeth, so that the overall height of the lifting machine can be adjusted to adapt to the heights of windows of different buildings; and materials can be conveniently hoisted into a room, the adaptability is higher, and the practicability is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting machines, and in particular relates to a hoisting machine for building construction. Background Art

[0002] A hoist is a lifting device with excellent performance and extremely wide application. During the construction of a building project, a lifting device is usually required to facilitate construction and lift objects from one location to another. The hoist is suitable for lifting operations in multi-story or medium and low-rise buildings, such as the lifting of various building materials and various decoration materials.

[0003] Patent CN219058371 U discloses a construction cargo hoist, including a placement frame and a hoist. By providing a trolley, a second sliding tube and a counterweight block, the purpose of facilitating the support of the end of the placement frame is achieved, and the adjustment of the hoist in a narrow space is facilitated.

[0004] However, in the technical solution of the above patent, the bracket is of a fixed height. In house construction, the height of windows varies with the surrounding environment. The bracket of a fixed height cannot adapt to different environments and it is difficult to lift and transfer materials. Therefore, it is impossible to adjust its own height according to the height of different windows to facilitate lifting materials to the designated position. The adaptability is low, which reduces work efficiency.

[0005] In addition, even if the height of the hoist is adjusted to adapt to the window height or the surrounding environment, the position of the overall center of gravity of the hoist will change, which may cause the position of the counterweight block under the original configuration to no longer provide stable pressure for the hoist, making it easy for the hoist to collapse when lifting heavy objects, making it inconvenient to use. Utility Model Content

[0006] The purpose of the utility model is to provide a hoist for building construction, in order to solve the problem that the hoist cannot adjust the height to adapt to different window heights and the center of gravity of the device may be unstable due to height adjustment.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A hoist for building construction comprises a base; the base is a rectangular structure, and a support rod is fixedly arranged at one end of the base; a slide rod is slidably connected to the interior of the upper end of the support rod; a plurality of concave teeth are provided on the slide rod; a rotating shaft is rotatably arranged on the upper part of the support rod corresponding to the position of the concave teeth; a gear is provided on the rotating shaft, and the gear is engaged with the concave teeth; a first fixed plate and a second fixed plate are rotatably connected to the two ends of the rotating shaft via bearings respectively; a motor is provided on the side of the first fixed plate away from the gear.

[0009] Furthermore, a U-shaped cutout is provided at one end of the base away from the support rod, and a plurality of jacks are provided at equal intervals on the upper side of the base on both sides of the U-shaped cutout.

[0010] Furthermore, a plurality of shafts are evenly arranged along the length direction in the U-shaped incision, and both ends of the shafts are fixedly connected to both sides of the inside of the U-shaped incision respectively; a roller is rotatably connected to each shaft via a bearing.

[0011] Furthermore, a load plate is mounted on the roller, and a plurality of counterweights are mounted on the upper surface of the load plate; the load plate is composed of two rectangular plates connected upper and lower, the upper rectangular plate has the same width as the base, the lower rectangular plate has the same width as the U-shaped cutout, and the lower surface of the lower rectangular plate fits the upper part of the roller, and there is a gap between the lower surface of the upper rectangular plate and the upper surface of the base.

[0012] Furthermore, an L-shaped cutout is provided in the middle of both sides of the load plate, and an L-shaped insertion rod is provided inside the L-shaped cutout.

[0013] Furthermore, the base has an array of oblique support rods in a circumferential position corresponding to the support rods; one end of the oblique support rod is fixedly connected to the support rod, and the other end is fixedly connected to the base.

[0014] Furthermore, a coaxial ratchet is fixedly provided on the rotating shaft; the ratchet is located on the side of the gear.

[0015] Furthermore, the first fixing plate is fixedly connected to the support rod via a first connecting rod; the second fixing plate is fixedly connected to the support rod via a second connecting rod.

[0016] Furthermore, the first fixed plate is rotatably connected to a pawl corresponding to the position of the upper part of the ratchet; the side of the first fixed plate away from the sliding rod is rotatably connected to a coaxial shift rod corresponding to the position of the pawl; the weight of the pawl is greater than the weight of the shift rod, and the pawl is in abutment with the ratchet.

[0017] Furthermore, the output end of the motor is connected to the rotating shaft, and the motor is fixed to the first fixing plate by the cooperation of a clamp and a screw.

[0018] Beneficial effects of the utility model:

[0019] 1) The utility model sets a slide bar, concave teeth, ratchet, gear and motor and other structures, uses the motor and the lever to control the ratchet and gear to rotate in the clockwise and counterclockwise directions, and then realizes the lifting function of the slide bar through the coordinated use of the gear and the concave teeth, thereby adjusting the overall height of the hoist to adapt to the height of windows or obstacles in different buildings, making it convenient to lift materials to the designated location, with stronger adaptability and higher practicality.

[0020] 2) The utility model opens a U-shaped incision on the base, and sets up structures such as a roller, a load-bearing plate, a counterweight, an L-shaped rod, and a socket. By removing the L-shaped rods on both sides of the middle of the load-bearing plate, and then pushing the load-bearing plate horizontally on the roller according to the height of the hoist, so that it is aligned with the correct position of the socket, the load-bearing plate is fixed, and the position of the counterweight is movable, which solves the problem that the center of gravity of the device changes due to adjustment of the overall height of the hoist, which may cause the device to tilt or collapse, and improves the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a partial cross-sectional view of the utility model;

[0024] Figure 3 This is a cross-sectional view of the L-shaped plug in the present invention;

[0025] Figure 4 This is a schematic diagram of the drum structure in the present utility model;

[0026] Figure 5 This is a schematic diagram of the load plate structure in the present utility model;

[0027] Figure 6 This is a schematic diagram of the lever structure in the present utility model;

[0028] Figure 7 This is a schematic diagram of the gear structure in the present utility model;

[0029] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0030] 1. Base; 2. Support rod; 3. Sliding rod; 4. Diagonal support rod; 5. Concave teeth; 6. Roller; 7. Load plate; 8. Counterweight; 9. L-shaped rod; 10. Socket; 11. First fixed plate; 12. Ratchet; 13. Gear; 14. Second fixed plate; 15. Pawl; 16. Rotating shaft; 17. Lever; 18. Motor; 19. Hook; 20. Shaft; 21. Slide groove; 22. First connecting rod; 23. Second connecting rod; 24. L-shaped notch; 25. U-shaped notch. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1 、 Figure 2 As shown, a hoist for building construction includes a base 1; the base 1 is a rectangular structure, and a support rod 2 is vertically fixed to one end of the base 1; a slide rod 3 is slidably connected to the upper end of the support rod 2.

[0033] See also Figure 4 As shown, a U-shaped cutout 25 is provided at one end of the base 1 away from the support rod 2, and a plurality of jacks 10 are equidistantly provided on the upper side of the base 1 on both sides of the U-shaped cutout 25; a plurality of shafts 20 are evenly arranged along the length direction inside the U-shaped cutout 25, and the two ends of the shafts 20 are respectively fixed to the two sides inside the U-shaped cutout 25; the upper part of each shaft 20 is rotatably connected to a roller 6 through a bearing, the outer ring of the bearing is connected to the roller 6, and the inner ring is connected to the shaft 20.

[0034] See also Figure 5 As shown, a plurality of rollers 6 are jointly provided with a load plate 7, which is composed of two rectangular plates connected upper and lower. The upper rectangular plate has the same width as the base 1, and the lower rectangular plate has the same width as the U-shaped cutout 25. The lower surface of the lower rectangular plate fits the upper part of the roller 6, and there is a gap between the lower surface of the upper rectangular plate and the upper surface of the base 1.

[0035] See also Figure 3 、 Figure 4 as well as Figure 5 As shown, L-shaped cutouts 24 are provided in the middle of both sides of the load plate 7 (a rectangular plate at the top), and L-shaped insertion rods 9 are provided inside the L-shaped cutouts 24; a plurality of counterweights 8 are mounted on the upper surface of the load plate 7.

[0036] See also Figure 1 、 Figure 2 As shown, the base 1 has a fixed diagonal support rod 4 in a circumferential array corresponding to the position of the support rod 2; one end of the diagonal support rod 4 is fixed to the support rod 2, and the other end is fixed to the base 1, and the diagonal support rod 4 is used to strengthen the stability of the support rod 2;

[0037] A sliding groove 21 with an open upper end is provided inside the support rod 2, and the depth of the sliding groove 21 is 1 / 3 of the height of the support rod 2; the sliding rod 3 is arranged inside the sliding groove 21, and the height of the sliding rod 3 is 2 / 3 of the height of the support rod 2; a plurality of concave teeth 5 are provided in the middle of the outer surface of the sliding rod 3.

[0038] The upper end flange of the slide rod 3 is connected to a horizontally rotatable load-bearing plate, on which a winch and an obliquely arranged support arm are fixed by screws. The lifting rope on the winch is arranged along the support arm, and the tail end is vertically arranged below the upper end of the support arm, and the end is connected to the hook 19.

[0039] It is worth noting here that since the load-bearing plate, winch and lifting rope are existing technologies, they will not be described in detail here.

[0040] See also Figure 6 and Figure 7 As shown, a rotating shaft 16 is rotatably provided on the upper part of the support rod 2 corresponding to the position of the concave tooth 5; a gear 13 and a ratchet 12 are coaxially fixed on the rotating shaft 16, and the gear 13 is engaged with the concave tooth 5 to adjust the lifting movement of the slide rod 3, and the ratchet 12 is located on the side of the gear 13 to limit the rotation direction of the gear 13.

[0041] The two ends of the rotating shaft 16 are rotatably connected to the first fixed plate 11 and the second fixed plate 14 through bearings respectively; the bottom of the first fixed plate 11 close to the ratchet 12 is fixed to the support rod 2 through the first connecting rod 22; the bottom of the second fixed plate 14 close to the ratchet 12 is fixed to the support rod 2 through the second connecting rod 23.

[0042] The first fixed plate 11 is rotatably connected to the upper part of the ratchet 12 with a pawl 15; the side of the first fixed plate 11 away from the slide bar 3 is rotatably connected to the position of the pawl 15 with a coaxial lever 17, which is used to manually adjust the position of the pawl 15; the weight of the pawl 15 is greater than the weight of the lever 17, and the pawl 15 abuts against the ratchet 12 to prevent the ratchet 12 from reversing.

[0043] A motor 18 is provided on the side of the first fixed plate 11 away from the ratchet 12. The output end of the motor 18 is connected to the rotating shaft 16. The motor 18 is fixed to the first fixed plate 11 by the cooperation of a clamp and a screw. By operating the motor 18 and the lever 17, the lifting and lowering of the slide bar 3 can be conveniently controlled.

[0044] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in actual process is described in detail below:

[0045] During use of the device, after assembling the hoist, the user can first adjust the height of the slide bar 3 according to the height of the building window or obstacle to facilitate lifting materials into the room.

[0046] If the height of the slide bar 3 is not enough to transfer the material to be lifted from the higher window to the room, you can first operate the lever 17 to press the lever 17 clockwise to lift the pawl 15, so that the pawl 15 loses contact with the ratchet 12, and then operate the motor 18 to control the ratchet 12 and the gear 13 to rotate counterclockwise (here Figure 6 The angles shown describe the rotation direction of the shift lever 17 and the rotation direction of the ratchet 12). By cooperating with the gear 13 and the concave tooth 5, the slide bar 3 can be raised. After reaching the desired height, the shift lever 17 is lowered to allow the pawl 15 to abut against the ratchet 12 again to prevent the ratchet 12 from reversing, thereby limiting the position of the slide bar 3. At this time, the hoist can be used to grab materials and perform normal operations so that the materials can be smoothly lifted to the specified location.

[0047] On the contrary, if the height of the slide bar 3 is sufficient to transfer the material to be lifted from the window to the room, but the height of the slide bar 3 is too high, after operating the lever 17 to lift the pawl 15, the motor 18 is operated to control the ratchet 12 and the gear 13 to rotate clockwise, and the gear 13 and the concave tooth 5 cooperate to lower the height of the slide bar 3. After reaching the desired height, the lever 17 is operated to redefine the position of the slide bar 3. At this time, the hoist can be used to grab materials for normal operation.

[0048] In addition, after the height of the slide bar 3 is adjusted, the center of gravity of the entire hoist equipment changes: that is, the higher the center of gravity, the worse the stability, and the lower the center of gravity, the better the stability; therefore, after the height of the slide bar 3 is adjusted, the center of gravity of the hoist becomes higher. At this time, if the material is directly lifted, there will be a risk of equipment collapse. According to the principle of leverage, by adjusting the position of the load plate 7 to keep it away from one end of the hook 19, the stability of the hoist equipment can be increased, and there will be no risk of collapse, and thus no safety risks and economic losses will be caused; without adding any counterweight, even if the height position of the slide bar 3 is adjusted, it can still maintain good stability, is easy and quick to use, and is convenient for construction operations.

[0049] Therefore, after adjusting the overall height of the hoist, the operator can adjust the position of the counterweight 8 accordingly, for example:

[0050] If the hoist is at a higher height, the load plate 7 can be moved away from the support rod 2. After the position is determined, the L-shaped cutout 24 of the load plate 7 is aligned with the insertion hole 10, and the L-shaped insertion rod 9 is inserted into the insertion hole 10 to fix the position of the load plate 7. Since multiple counterweights 8 are mounted on the load plate 7, the position of the counterweights 8 is also changed, making the device more stable.

[0051] If the hoist is at a lower height, the load plate 7 is moved closer to the support rod 2, and then the load plate 7 is fixed by using the L-shaped rod 9, L-shaped cutout 24, and socket 10 to change the counterweight position to adapt to the center of gravity height and make the device more stable.

[0052] It is worth noting here that: when adjusting the load plate 7 and the counterweight 8 on the load plate 7, it is necessary to remove the L-shaped rods 9 on both sides of the middle part of the load plate 7 in advance, and then push the load plate 7 horizontally on the roller 6 according to the height of the hoist to align it with the correct position. The setting of the roller 6 can change the mode of the load plate 7 to rolling, which has less friction. Even if the counterweight on the load plate 7 is heavy, the position of the load plate 7 can be easily adjusted.

[0053] Throughout the specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0054] The above content is merely an example and explanation of the structure of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should fall within the scope of protection of the present utility model.

Claims

1. A hoist for building construction, comprising a base (1) and a support rod (2), wherein the support rod (2) is fixedly mounted on one end of the base (1); characterized in that: The upper end of the support rod (2) is internally slidably connected to a slide rod (3); A plurality of concave teeth (5) are provided on the slide bar (3); a rotating shaft (16) is provided on the upper portion of the support bar (2) so as to rotate corresponding to the position of the concave teeth (5); a gear (13) is provided on the rotating shaft (16), and the gear (13) is meshed with the concave teeth (5); The two ends of the rotating shaft (16) are rotatably connected to a first fixed plate (11) and a second fixed plate (14) via bearings; a motor (18) is provided on a side of the first fixed plate (11) away from the gear (13).

2. A hoisting machine for building construction according to claim 1, characterized in that: A U-shaped cutout (25) is provided at one end of the base (1) away from the support rod (2), and a plurality of jacks (10) are provided at equal intervals on the upper side of the base (1) on both sides of the U-shaped cutout (25).

3. A hoisting machine for building construction according to claim 2, characterized in that: A plurality of shafts (20) are evenly arranged in the length direction of the U-shaped cutout (25), and both ends of the shafts (20) are fixed to both sides of the inside of the U-shaped cutout (25); each shaft (20) is rotatably connected to a roller (6) via a bearing.

4. A hoisting machine for building construction according to claim 3, characterized in that: The roller (6) is provided with a load plate (7); a plurality of counterweights (8) are provided on the upper surface of the load plate (7); the load plate (7) is composed of two rectangular plates connected upper and lower, the upper rectangular plate having the same width as the base (1), the lower rectangular plate having the same width as the U-shaped cutout (25), the lower surface of the lower rectangular plate being in contact with the upper part of the roller (6), and a gap being present between the lower surface of the upper rectangular plate and the upper surface of the base (1).

5. A hoisting machine for building construction according to claim 4, characterized in that: L-shaped cutouts (24) are provided in the middle of both sides of the load-bearing plate (7), and L-shaped inserting rods (9) are provided inside the L-shaped cutouts (24).

6. A hoisting machine for building construction according to claim 1, characterized in that: The base (1) has diagonal support rods (4) arranged in a circular array corresponding to the positions of the support rods (2); one end of the diagonal support rods (4) is fixedly connected to the support rods (2), and the other end is fixedly connected to the base (1).

7. A hoisting machine for building construction according to claim 1, characterized in that: A coaxial ratchet (12) is also fixedly provided on the rotating shaft (16); the ratchet (12) is located on the side of the gear (13).

8. The hoisting machine for building construction according to claim 1, characterized in that: The first fixing plate (11) is fixedly connected to the support rod (2) via a first connecting rod (22); the second fixing plate (14) is fixedly connected to the support rod (2) via a second connecting rod (23).

9. A hoisting machine for building construction according to claim 7, characterized in that: The first fixing plate (11) is rotatably connected to a pawl (15) corresponding to a position on the upper part of the ratchet (12); a coaxial shifting rod (17) is rotatably connected to a side of the first fixing plate (11) away from the slide rod (3) corresponding to a position of the pawl (15); the weight of the pawl (15) is greater than the weight of the shifting rod (17), and the pawl (15) is in abutment with the ratchet (12).

10. A hoisting machine for building construction according to claim 1, characterized in that: The output end of the motor (18) is connected to the rotating shaft (16), and the motor (18) is fixed to the first fixing plate (11) by the cooperation of a clamp and a screw.

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