Tower crane hook photoelectric pointing system

Abstract

The utility model provides a tower crane lifting hook photoelectric pointing system relates to building construction technical field, including amplitude car and hoisting hook, amplitude car bottom is equipped with fixed base, is provided with the connecting frame in fixed base bottom portion, and is equipped with laser pointing appearance in connecting frame bottom portion installation, through fixed base, connecting frame and laser pointing appearance constitute the pointing mechanism of photoelectric pointing system together, through amplitude car horizontal movement on the boom of tower crane realizes the radius adjustment of hoisting operation, when operating, through fixed base and connecting frame makes laser pointing appearance vertical installation in the bottom of amplitude car, through laser pointing appearance vertical downward projection laser beam, the position indicated by thorough laser beam is basically consistent with the drop point of hoisting hook, so that when operating, ground signal worker can see the drop point of hoisting hook directly through laser beam, thereby carries out the early prediction and early command, increases the safety in hoisting operation process.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a photoelectric pointing system for a tower crane hook. Background Technology

[0002] A tower crane is a rotating crane with its jib mounted on a tall tower. It is mainly used for the vertical transport of materials and the installation of components in the construction of multi-story and high-rise buildings. Tower cranes are widely used in the construction industry, especially in multi-story and high-rise buildings, primarily for the vertical transport of materials and the installation of components. Tower cranes can also be classified into several types according to their usage requirements, including mobile, stationary, attached, and internal climbing types. Attached tower cranes are suitable for high-rise building construction; internal climbing tower cranes, on the other hand, eliminate part of the tower structure, offering advantages such as a larger service area and less space occupation during construction.

[0003] In existing technologies, insufficient light during nighttime construction makes it difficult to accurately visually determine the position of the hook. Commanders can only determine its position when the hook is close to the ground. Visually judging the hook position at night is not easy to be accurate. When lifting heavy objects, the hook may not be perpendicular to the object, resulting in skewed pulling and dragging, which may cause accidents such as wire rope wear, rope tangling, or even rope breakage, seriously affecting lifting safety. Therefore, a photoelectric pointing system for tower crane hooks is proposed to solve the above problems. Utility Model Content

[0004] This utility model mainly provides a photoelectric pointing system for tower crane hooks to increase the safety of lifting and hoisting operations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a tower crane hook photoelectric pointing system, comprising: a luffing trolley and a lifting hook, wherein a fixed base is installed at the bottom of the luffing trolley, a connecting frame is provided at the bottom of the fixed base, and a laser pointing device is installed at the bottom of the connecting frame; The fixed base is fixed to the bottom of the frame of the luffing trolley by bolts. The fixed base, the connecting frame and the laser pointer together constitute the pointing mechanism of the photoelectric pointing system, and the laser pointer emits a laser to point the position of the lifting hook.

[0006] Preferably, the pointing mechanism, which is composed of the fixed base, the connecting frame and the laser pointer, is provided in two sets at the bottom of the luffing trolley, and the two sets of pointing mechanisms are symmetrically arranged on both sides of the connection between the luffing trolley and the lifting hook.

[0007] Preferably, the fixed base includes a base shell, a hemispherical base, a hemispherical retaining ring, and a shell fixing ring. Connecting plates are provided on both sides of the top of the base shell, and bolt through holes are provided on the connecting plates.

[0008] Preferably, the bottom of the hemispherical base and the top of the hemispherical retaining ring are both hemispherical, and a circular through hole is provided at the bottom of the hemispherical retaining ring.

[0009] Preferably, the housing retaining ring has a baffle plate inside that abuts against the bottom of the hemispherical retaining ring, and the baffle plate has a circular through hole in the middle that is the same as the bottom of the hemispherical retaining ring.

[0010] Preferably, the connecting frame includes a spherical rotating shaft, a connecting rod, and a counterweight, wherein the spherical rotating shaft is installed inside the spherical groove formed by the hemispherical base and the hemispherical retaining ring.

[0011] Preferably, the connecting rod is fixed to the bottom of the spherical rotating shaft, and the connecting rod passes through the circular through hole at the bottom of the hemispherical retaining ring and the outer shell fixing ring.

[0012] Preferably, the counterweight is nested on the connecting rod, and the counterweight is threadedly fixed to the connecting rod.

[0013] Preferably, the connecting frame further includes a caliper and a retaining nut, the caliper having a threaded hole at its top, and the top of the caliper being threadedly fixed to the bottom end of the connecting rod.

[0014] Preferably, the caliper is configured with a three-lobed structure, and the caliper has an internal groove that encloses the end of the laser pointer, and the fixing nut is nested and installed on the caliper.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the pointing mechanism of the photoelectric pointing system is composed of a fixed base, a connecting frame, and a laser pointer. The lifting operation radius is adjusted by the horizontal movement of the luffing trolley on the boom of the tower crane. During operation, the laser pointer is vertically installed at the bottom of the luffing trolley through the fixed base and connecting frame. The laser pointer projects a laser beam vertically downwards, and the position indicated by the clear laser beam is basically consistent with the landing point of the lifting hook. Thus, during operation, the ground signalman can directly see the landing point of the lifting hook through the laser beam, thereby making advance predictions and commands, and increasing the safety of the lifting operation.

[0016] 2. In this utility model, the fixed base includes a base shell, a hemispherical base, a hemispherical retaining ring, and a shell fixing ring. The connecting frame includes a spherical rotating shaft, a connecting rod, and a counterweight. The hemispherical base and the hemispherical retaining ring are spliced ​​together to form a spherical slot structure. The spherical rotating shaft can rotate freely in the spherical slot formed by the hemispherical base and the hemispherical retaining ring, allowing the connecting frame to rotate at the bottom of the fixed base. The weight of the counterweight causes the bottom of the connecting rod to be subjected to a vertically downward gravitational force. Furthermore, the spherical rotating shaft ensures that the connecting rod always remains in a vertically downward direction. This ensures that the laser pointer fixed at the bottom of the connecting frame always remains vertical, thereby ensuring that the laser beam projected by the laser pointer always remains vertical, thus improving the accuracy of the laser beam pointing position and enabling more accurate command by ground signalmen. Attached Figure Description

[0017] Figure 1 This utility model provides a structural schematic diagram of a photoelectric pointing system for a tower crane hook; Figure 2 This utility model provides a schematic diagram of the bottom structure of the luffing trolley of a tower crane hook photoelectric pointing system; Figure 3 This utility model provides a partial cross-sectional structural diagram of the pointing mechanism of a tower crane hook photoelectric pointing system; Figure 4 This utility model provides an exploded structural diagram of the fixed base of a tower crane hook photoelectric pointing system; Figure 5 This invention provides an exploded structural diagram of the connecting frame of a tower crane hook photoelectric pointing system.

[0018] Legend: 1. Luffing trolley; 2. Lifting hook; 3. Fixed base; 31. Base shell; 32. Hemispherical base; 33. Hemispherical retaining ring; 34. Shell fixing ring; 4. Connecting frame; 41. Spherical shaft; 42. Connecting rod; 43. Counterweight; 44. Caliper; 45. Fixing nut; 5. Laser pointer. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Please see Figures 1-5 This utility model provides a technical solution: a tower crane hook photoelectric pointing system, including a luffing trolley 1 and a lifting hook 2. A fixed base 3 is installed at the bottom of the luffing trolley 1, a connecting frame 4 is provided at the bottom of the fixed base 3, and a laser pointer 5 is installed at the bottom of the connecting frame 4. The fixed base 3 is fixed to the bottom of the frame of the luffing trolley 1 by bolts. The fixed base 3, the connecting frame 4, and the laser pointer 5 together constitute the pointing mechanism of the photoelectric pointing system, and the laser pointer 5 emits a laser to point the position of the lifting hook 2. The lifting radius is adjusted by moving the luffing trolley 1 horizontally on the boom of the tower crane. During operation, the laser pointer 5 is vertically mounted on the bottom of the luffing trolley 1 through the fixed base 3 and connecting frame 4. The laser pointer 5 projects a laser beam vertically downwards, and the position indicated by the clear laser beam is basically consistent with the landing point of the lifting hook 2. Thus, during operation, the ground signalman can directly see the landing point of the lifting hook 2 through the laser beam, thereby making advance predictions and commands, and increasing the safety of the lifting operation.

[0022] The pointing mechanism, which is composed of the fixed base 3, the connecting frame 4 and the laser pointer 5, is provided in two sets at the bottom of the luffing trolley 1. The two sets of pointing mechanisms are symmetrically arranged on both sides of the connection between the luffing trolley 1 and the lifting hook 2. The laser pointer 5 in the two sets of pointing mechanisms emits laser beams at the same time, so that the ground signalman can more accurately determine the position of the lifting hook 2.

[0023] The fixed base 3 includes a base shell 31, a hemispherical base 32, a hemispherical retaining ring 33, and a shell fixing ring 34. Connecting plates are provided on both sides of the top of the base shell 31, and bolt through holes are provided on the connecting plates. The base shell 31 is connected and fixed to the luffing trolley 1 by bolts.

[0024] The bottom of the hemispherical base 32 and the top of the hemispherical retaining ring 33 are both hemispherical, and the bottom of the hemispherical retaining ring 33 has a circular through hole. The hemispherical base 32 and the hemispherical retaining ring 33 are spliced ​​together to form a spherical slot structure.

[0025] The housing retaining ring 34 has a baffle that abuts against the bottom of the hemispherical retaining ring 33, and the baffle has a circular through hole in the middle that is the same as the bottom of the hemispherical retaining ring 33. The hemispherical base 32 and the hemispherical retaining ring 33 are fixed inside the base housing 31 by the housing retaining ring 34.

[0026] The connecting frame 4 includes a spherical rotating shaft 41, a connecting rod 42, and a counterweight 43. The spherical rotating shaft 41 is installed inside the spherical groove formed by the hemispherical base 32 and the hemispherical retaining ring 33. The spherical rotating shaft 41 can rotate freely in the spherical groove formed by the hemispherical base 32 and the hemispherical retaining ring 33, so that the connecting frame 4 can rotate at the bottom of the fixed base 3.

[0027] The connecting rod 42 is fixed to the bottom of the spherical rotating shaft 41, and the connecting rod 42 passes through the circular through hole at the bottom of the hemispherical retaining ring 33 and the outer shell fixing ring 34. The connecting rod 42 changes its angle at the bottom of the fixed base 3 by rotating the spherical rotating shaft 41.

[0028] The counterweight 43 is nested on the connecting rod 42 and is threadedly fixed to the connecting rod 42. The weight of the counterweight 43 causes the bottom of the connecting rod 42 to be subjected to a vertically downward gravity. Through the action of the spherical rotating shaft 41, the connecting rod 42 always remains in a vertically downward direction, thereby keeping the laser pointer 5 fixed at the bottom of the connecting frame 4 in a vertical direction, thus ensuring that the laser beam projected by the laser pointer 5 always remains vertical.

[0029] The connecting frame 4 also includes a caliper 44 and a fixing nut 45. The caliper 44 has a threaded hole at the top and the top of the caliper 44 is threadedly fixed to the bottom end of the connecting rod 42. The caliper 44 limits the counterweight 43 to prevent the counterweight 43 from falling off.

[0030] The caliper 44 is configured with a three-lobed structure, and the caliper 44 has a slot inside that wraps around the end of the laser pointer 5. A fixing nut 45 is nested on the caliper 44. The laser pointer 5 is fixed to the bottom of the connecting frame 4 by the combined action of the caliper 44 and the fixing nut 45.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A photoelectric pointing system for a tower crane hook, comprising a luffing trolley (1) and a hoisting hook (2), characterized in that: The variable amplitude trolley (1) is equipped with a fixed base (3) at the bottom, a connecting frame (4) is provided at the bottom of the fixed base (3), and a laser pointer (5) is installed at the bottom of the connecting frame (4). The fixed base (3) is fixed to the bottom of the frame of the luffing trolley (1) by bolts. The fixed base (3), the connecting frame (4) and the laser pointer (5) together constitute the pointing mechanism of the photoelectric pointing system, and the laser pointer (5) emits laser to point the position of the lifting hook (2).

2. A tower crane hook photoelectric pointing system according to claim 1, characterized in that: The pointing mechanism, which is composed of the fixed base (3), the connecting frame (4) and the laser pointer (5), is provided in two sets at the bottom of the luffing trolley (1). The two sets of pointing mechanisms are symmetrically arranged on both sides of the connection between the luffing trolley (1) and the lifting hook (2).

3. A tower crane hook photoelectric pointing system according to claim 1, characterized in that: The fixed base (3) includes a base shell (31), a hemispherical base (32), a hemispherical retaining ring (33) and a shell fixing ring (34). The base shell (31) has connecting plates on both sides of its top, and bolt through holes are provided on the connecting plates.

4. A tower crane hook photoelectric pointing system according to claim 3, characterized in that: The bottom of the hemispherical base (32) and the top of the hemispherical retaining ring (33) are both hemispherical, and a circular through hole is provided at the bottom of the hemispherical retaining ring (33).

5. A tower crane hook photoelectric pointing system according to claim 3, characterized in that: The outer casing fixing ring (34) has a baffle plate inside that abuts against the bottom of the hemispherical retaining ring (33), and the baffle plate has a circular through hole in the middle that is the same as the bottom of the hemispherical retaining ring (33).

6. A tower crane hook photoelectric pointing system according to claim 1, characterized in that: The connecting frame (4) includes a spherical rotating shaft (41), a connecting rod (42) and a counterweight (43). The spherical rotating shaft (41) is installed inside the spherical groove formed by the hemispherical base (32) and the hemispherical retaining ring (33).

7. A tower crane hook photoelectric pointing system according to claim 6, characterized in that: The connecting rod (42) is fixed to the bottom of the spherical rotating shaft (41), and the connecting rod (42) passes through the circular through hole at the bottom of the hemispherical retaining ring (33) and the outer shell fixing ring (34).

8. A tower crane hook photoelectric pointing system according to claim 6, characterized in that: The counterweight (43) is nested on the connecting rod (42), and the counterweight (43) is threadedly fixed to the connecting rod (42).

9. A tower crane hook photoelectric pointing system according to claim 1, characterized in that: The connecting frame (4) also includes a caliper (44) and a fixing nut (45). The caliper (44) has a threaded hole at the top and the top of the caliper (44) is threadedly fixed to the bottom end of the connecting rod (42).

10. A tower crane hook photoelectric pointing system according to claim 9, characterized in that: The caliper (44) is configured with a three-lobed structure, and the caliper (44) has a slot inside that wraps around the end of the laser pointer (5), and the fixing nut (45) is nested on the caliper (44).

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