Lifting appliance for building construction

Abstract

The invention provides a building construction lifting appliance, and relates to the technical field of crane hooks, the building construction lifting appliance comprises a lifting connecting piece, and the lifting connecting piece is provided with a rope test piece; the hoisting connecting piece is provided with two detection alarm pieces; the two detection alarm pieces are located on the upper side and the lower side of the rope test piece respectively. The rope test piece is used for testing the safety of the rope; a connecting lifting hook piece is mounted on the lifting connecting piece; a friction detection piece is installed on the connecting lifting hook piece, the quality of a lifting hook rope can be detected more comprehensively, potential safety hazards are reduced, detection is more visual and comprehensive, and the problems that according to an existing building construction lifting appliance, rope damage, deviation and oil contamination testing is not convenient, and bottoming friction swing prevention and swing safety detection are not convenient are solved.

Description

Technical Field

[0001] The invention relates to the technical field of crane hooks, and in particular to a construction hoisting sling. Background Art

[0002] In actual construction work, materials usually need to be lifted by cranes. The hook on the crane is an important lifting device. The hook is usually equipped with a pulley to facilitate the steel wire rope passing through the crane to reduce resistance and save effort through the pulley. Especially for construction materials, which are usually heavy, crane lifting needs to ensure safety. The current construction lifting slings are not convenient for testing rope damage, misalignment and oil pollution, which may easily cause safety hazards. Manual visual observation is not accurate enough. At the same time, traditional hooks are prone to swinging and shaking under the action of inertia during tilted lifting, which may easily cause safety hazards. It is not convenient to perform bottoming friction anti-swaying and swing safety detection, and it is not convenient for staff to adjust the lifting position of the hook. When the material is partially hung for a long time, the local fatigue strength of the hook is reduced and the local wear is large, which affects the service life. Summary of the invention

[0003] The disclosed embodiments relate to a construction hoisting sling, whose rope testing piece can more comprehensively detect the quality of the hook rope, reduce safety hazards, and make the detection more intuitive and comprehensive, so as to solve the problem that the current construction hoisting sling is not convenient for testing rope damage, misalignment and oil pollution, and is not convenient for bottoming friction anti-sway and swing safety detection.

[0004] The present invention provides a construction lifting sling, comprising a lifting connection, on which a rope test piece is installed; on which two detection alarm pieces are installed; the two detection alarm pieces are respectively located on the upper and lower sides of the rope test piece; the rope test piece is used to test the safety of the rope; on which a connecting hook piece is installed; on which a friction detection piece is installed; the friction detection piece is used to reduce the shaking of the lifting connection; on which a hanging position adjustment piece is installed; the hanging position adjustment piece is used to adjust the hanging position of the connecting hook piece; on which a rope angle prompt part is installed; the lifting connection comprises: a hook mounting frame and an indicator light, on which three indicator lights are fixedly installed; the hook mounting frame is a plate frame structure.

[0005] In at least some embodiments, the detection alarm component includes: a support plate, an alarm micro switch and an extrusion block, wherein two support plates are provided, and the two support plates are respectively fixedly mounted on the sides of the hook mounting frame; the two support plates are respectively fixedly mounted with alarm micro switches; an extrusion block is slidably mounted on the support plate, and the extrusion block is a slope structure; the extrusion block fits the extrusion detection protrusion, and the extrusion block is attached to the end of the alarm micro switch; the two alarm micro switches are respectively electrically connected to the indicator lights above.

[0006] In at least some embodiments, the lifting connection also includes: a detection connection groove and a lifting pulley, the lifting pulley is rotatably mounted on a hook mounting frame; the lifting pulley is used for rolling connection to a crane rope; and two detection connection grooves are provided on the hook mounting frame.

[0007] In at least some embodiments, the connecting hook member includes: a hook and a friction head, the hook is rotatably mounted on a hook mounting frame; the friction head is fixedly mounted on the bottom of the hook; and the hook is a cast iron structure.

[0008] In at least some embodiments, the rope angle prompt part also includes: a ball sleeve and a power ring, the ball sleeve is sleeved on the power flashlight; a power ring is fixedly installed on the bottom of the ball sleeve, and a gap is provided between the power ring and the power flashlight; the power ring, the power flashlight and the indicator light below are connected in series with a power supply.

[0009] In at least some embodiments, the rope testing piece includes: a detection connecting plate, a displacement tension spring, a detection protrusion, a bristle slider and a fitting spring sheet, wherein the detection connecting plate is located on the inner sides of two detection connecting grooves; displacement tension springs are fixedly installed on the upper and lower sides of the detection connecting plate, and four ends of the displacement tension springs are respectively connected to the two sides of the two detection connecting grooves; detection protrusions are fixedly installed on the upper and lower sides of the detection connecting plate, and the detection protrusions are arc-shaped structures; four bristle sliders are slidably installed on the detection connecting plate; steel bristles are respectively provided on the inner sides of the four bristle sliders; fitting spring sheets are fixedly installed on the sides of the four bristle sliders, and the ends of the fitting spring sheets are attached to the inner side of the detection connecting plate; the bristles on the inner sides of the four bristle sliders are respectively attached to the ropes.

[0010] In at least some embodiments, the hanging position adjustment member further includes: an electromagnet, an electromagnet is fixedly mounted on the end of the push bolt, and the electromagnet is externally connected to a power supply; the electromagnet is used to magnetically attract the hook; and the push bolt is used to push the hook for fine adjustment.

[0011] In at least some embodiments, the friction detection component includes: a friction detection column, an anti-accidental touch spring and a bottoming switch, the friction detection column is slidably inserted on the hook; the anti-accidental touch spring is sleeved on the bottom of the hook; the anti-accidental touch spring is fixedly installed on the top of the friction detection column, and the end of the anti-accidental touch spring is connected to the inner side of the hook; the bottoming switch is fixedly installed on the top of the friction detection column, and the bottoming switch is located inside the hook; four slots are provided at the bottom of the friction detection column; the bottoming switch is electrically connected to the indicator light in the middle.

[0012] In at least some embodiments, the hanging position adjustment member includes: a hanging position adjustment plate and a push bolt, wherein the hanging position adjustment plate is fixedly mounted on the inner side of the hook mounting frame; the push bolt is threadedly connected to the hanging position adjustment plate, and a hand wheel is provided at the tail of the push bolt.

[0013] In at least some embodiments, the rope angle prompt part includes: an installation tension spring and a flashlight, wherein two installation tension springs are provided, and the two installation tension springs are respectively fixedly installed on the hook mounting frame; a flashlight is fixedly installed between the two installation tension springs; a ball head structure is provided on the top of the flashlight; the middle part of the flashlight is used to pass the rope; and a conductive structure is provided under the installation tension spring.

[0014] The present invention provides a construction hoisting sling, which has the following beneficial effects:

[0015] The present invention adopts a rope test piece in combination with a detection alarm piece to carry out a comprehensive inspection of the rope. It can promptly carry out inspection and prompt work when the rope has local defects and breakages, the increase of surface oil and impurities causes the rope diameter to increase, or the rope is misaligned. This can improve the safety of the use of the structure, and at the same time, the inspection is more comprehensive, which can reduce safety hazards.

[0016] In addition, the use of friction detection parts can utilize friction force to avoid directly lifting the connecting hook part. If the landing point of the connecting hook part is greatly offset from the end of the boom, the rope will become skewed. At this time, under the action of inertia force, the connecting hook part will swing and shake, which may easily cause safety hazards to buildings or human beings. This structure utilizes friction force to improve safety. The friction head will rub against the ground to prevent the hook from swinging.

[0017] In addition, the use of a lifting position adjustment piece can improve the stability of the connecting hook piece after the connecting hook piece lifts the cargo, and at the same time reduce the wear of the rotating connection between the hook and the hook mounting frame. The present structure utilizes an adjustable thrust bolt, which can be used to control the force point when adjusting the hook to lift the cargo, thereby avoiding long-term local wear. The use of a rope angle prompt part can be used to detect the angle of the rope, thereby preventing the rope from being skewed without being discovered, thereby further ensuring the practicality of the present structure and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0019] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0020] In the attached picture:

[0021] Figure 1 A schematic diagram showing the overall structure of a construction hoisting sling of the present application is shown;

[0022] Figure 2 A schematic diagram showing the overall structure of the bottom of a construction hoisting sling of the present application is shown;

[0023] Figure 3 A cross-sectional view of a construction hoisting sling structure of the present application is shown;

[0024] Figure 4 A schematic diagram showing the overall structure of the lifting connector of the present application is shown;

[0025] Figure 5 A schematic diagram showing the overall structure of the rope test piece of the present application;

[0026] Figure 6 This application shows Figure 3 A magnified view of the structure of the middle B region;

[0027] Figure 7 A cross-sectional view showing the overall structure of the detection alarm element of the present application;

[0028] Figure 8 This application shows Figure 3 A magnified view of the structure of the middle D region;

[0029] Fig. 9 This application shows Figure 2 A magnified view of the structure of the middle E region;

[0030] Fig.10 This application shows Figure 3 A magnified view of the structure of the middle F region.

[0031] List of reference numerals:

[0032] 1. Lifting connector; 101. Hook mounting bracket; 102. Indicator light; 1011. Detection connection slot; 103. Lifting pulley; 2. Rope test piece; 201. Detection connection plate; 202. Displacement tension spring; 203. Detection protrusion; 204. Brush slider; 205. Fitting spring; 3. Detection alarm piece; 301. Support plate; 302. Alarm micro switch; 303. Extrusion block; 4. Connecting hook piece; 401. Hook; 402. Friction head; 5. Friction detection piece; 501. Friction detection column; 502. Anti-mistouch spring; 503. Bottom switch; 6. Lifting position adjustment piece; 601. Lifting position adjustment plate; 602. Push bolt; 603. Electromagnet; 7. Rope angle prompt part; 701. Install tension spring; 702. Connect flashlight; 703. Ball sleeve; 704. Connect electric coil. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1 to 10 :

[0035] The present invention proposes a construction hoisting sling, comprising a hoisting connector 1, on which a rope test piece 2 is installed; two detection alarm pieces 3 are installed on the hoisting connector 1; the two detection alarm pieces 3 are respectively located on the upper and lower sides of the rope test piece 2; the rope test piece 2 is used to test the safety of the rope; a connecting hook piece 4 is installed on the hoisting connector 1; a friction detection piece 5 is installed on the connecting hook piece 4; the friction detection piece 5 is used to reduce the shaking of the hoisting connector 1; a hanging position adjustment piece 6 is installed on the hoisting connector 1; the hanging position adjustment piece 6 is used to adjust the hoisting position of the connecting hook piece 4; a rope angle prompt part 7 is installed on the hoisting connector 1; the hoisting connector 1 comprises: a hook mounting frame 101 and an indicator light 102, on which three indicator lights 102 are fixedly installed; the hook mounting frame 101 is a plate frame structure.

[0036] In the disclosed embodiment, the lifting connection member 1 also includes: a detection connection groove 1011 and a lifting pulley 103, the lifting pulley 103 is rotatably mounted on the hook mounting frame 101; the lifting pulley 103 is used for rolling connection to the crane rope; the hook mounting frame 101 is provided with two detection connection grooves 1011; the rope test piece 2 includes: a detection connection plate 201, a displacement tension spring 202, a detection protrusion 203, a bristle slider 204 and a fitting spring piece 205, the detection connection plate 201 is located on the inner side of the two detection connection grooves 1011; the upper and lower sides of the detection connection plate 201 are respectively fixedly mounted with displacement tension springs 202, and the ends of the four displacement tension springs 202 are respectively connected to the two detection connection grooves 1011. On both sides of the connecting groove 1011; the upper and lower sides of the detection connecting plate 201 are respectively fixedly installed with detection protrusions 203, and the detection protrusions 203 are arc-shaped structures; four bristle sliders 204 are slidably installed on the detection connecting plate 201; the inner sides of the four bristle sliders 204 are respectively provided with steel bristles; the sides of the four bristle sliders 204 are respectively fixedly installed with fitting spring pieces 205, and the ends of the fitting spring pieces 205 are attached to the inner side of the detection connecting plate 201; the bristles on the inner sides of the four bristle sliders 204 are respectively attached to the ropes; the detection alarm component 3 includes: a support plate 301, an alarm microswitch 302 and an extrusion block 303, the support plate 301 is provided with two, and the two support plates 301 are respectively fixedly installed on the hook The side of the mounting frame 101; the two support plates 301 are respectively fixedly installed with an alarm micro switch 302; the support plate 301 is slidably installed with an extrusion block 303, and the extrusion block 303 is an inclined structure; the extrusion block 303 fits the extrusion detection protrusion 203, and the extrusion block 303 is attached to the end of the alarm micro switch 302; the two alarm micro switches 302 are respectively electrically connected to the indicator lights 102 above, and the rope test piece 2 is used in conjunction with the detection alarm piece 3 to perform a comprehensive detection of the rope, and timely detection and prompting work can be performed when the rope has local defects and breakages, the surface oil and impurities increase causing the rope diameter to increase, or the rope is deviated, which can improve the safety of the structure. The detection is more comprehensive, which can reduce safety hazards. After detecting safety problems, the staff can be evacuated in time or the rope can be repaired. The structure is more reasonable. The extrusion block 303 is used in conjunction with the detection protrusion 203 for detection to ensure comprehensive detection. Under the extrusion of the fitting spring piece 205, the bristles on the inner side of the four brush sliders 204 are fitted to the rope. When the rope is partially damaged or produces more greasy impurities, the brush slider 204 will be stuck on the surface of the rope. At this time, the detection connecting plate 201 is driven to rise or fall, and the detection protrusion 203 is driven to press the extrusion block 303, which squeezes the alarm micro switch 302 and controls the indicator light 102 above to light up.

[0037] In the disclosed embodiment, the connecting hook member 4 includes: a hook 401 and a friction head 402, the hook 401 is rotatably mounted on the hook mounting frame 101; the friction head 402 is fixedly mounted on the bottom of the hook 401; the hook 401 is a cast iron structure; the friction detection member 5 includes: a friction detection column 501, an anti-false touch spring 502 and a bottom switch 503, the friction detection column 501 is slidably plugged into the hook 401; the anti-false touch spring 502 is sleeved on the bottom of the hook 401; the anti-false touch spring 502 is fixedly mounted on the top of the friction detection column 501, and the end of the anti-false touch spring 502 is connected to the inner side of the hook 401; the bottom switch 503 is fixedly mounted on the top of the friction detection column 501, and the bottom switch 503 is located inside the hook 401; four slots are provided at the bottom of the friction detection column 501; the bottom switch 503 is electrically connected to the indicator light 102 in the middle, using The friction detection part 5 can utilize friction to avoid the situation when directly pulling the connecting hook part 4. If the landing point of the connecting hook part 4 is greatly offset from the end of the boom, the rope will be skewed. At this time, under the action of inertia, the connecting hook part 4 will swing, which may easily cause safety hazards to buildings or human beings. The present structure utilizes friction to improve safety. When the friction detection column 501 contacts the ground, the bottom switch 503 is squeezed, and the indicator light 102 in the middle of the control lights up to prompt. At this time, there is friction between the friction detection column 501 and the ground. When the friction detection column 501 is just separated from the ground, under the action of its own weight, the hook 401 can automatically restore to remain vertical with the end of the boom. However, the gap between the friction detection column 501 and the ground is small, and its displacement distance is limited. During the process, the friction head 402 will also rub against the ground to prevent the hook 401 from swinging.

[0038] In the disclosed embodiment, the hanging position adjusting member 6 comprises: a hanging position adjusting plate 601 and a pushing bolt 602, wherein the hanging position adjusting plate 601 is fixedly mounted on the inner side of the hook mounting frame 101; the pushing bolt 602 is threadedly connected to the hanging position adjusting plate 601, and a hand wheel is provided at the tail of the pushing bolt 602; the hanging position adjusting member 6 also comprises: an electromagnet 603, wherein the electromagnet 603 is fixedly mounted on the end of the pushing bolt 602, and the electromagnet 603 is externally connected to a power supply; the electromagnet 603 is used for magnetically attracting the hook 401; the pushing bolt 602 is used for pushing the hook 401 for fine adjustment, and the use of the hanging position adjusting member 6 can improve the stability of the connecting hook member 4 after the connecting hook member 4 lifts the goods, and at the same time reduce the wear of the rotating connection between the hook 401 and the hook mounting frame 101, and the structure utilizes an adjustable pushing bolt 602, which can be used to fine-tune the position of the electromagnet 603 to limit the hook 401, and can be used to control and adjust the force point when the hook 401 hangs the goods, avoid long-term local wear, and improve the service life of the hook 401.

[0039] Embodiment 2, on the basis of embodiment 1, the rope angle prompt part 7 comprises: an installation tension spring 701 and a flashlight 702, two installation tension springs 701 are provided, and the two installation tension springs 701 are respectively fixedly installed on the hook mounting frame 101; a flashlight 702 is fixedly installed between the two installation tension springs 701; a ball head structure is provided on the top of the flashlight 702; the middle part of the flashlight 702 is used to pass the rope; the bottom of the installation tension spring 701 is a conductive structure; the rope angle prompt part 7 also comprises: a ball sleeve 703 and a power ring 704, the ball sleeve 703 is sleeved on the flashlight 702; the power ring 704 is fixedly installed on the bottom of the ball sleeve 703, and the power ring 704 is connected to the flashlight 702 02; the power supply is connected in series between the power ring 704, the flashlight 702 and the indicator light 102 below. The rope angle prompt part 7 can be used to detect the angle of the rope, which can prevent the rope from being skewed without being discovered, further ensure the practicality of the structure, and reduce safety hazards. At the same time, it is also convenient for detecting abnormal shaking of the goods during the lifting process after the goods are lifted, and timely reminding the staff to reduce safety hazards such as injuries. The detection of the structure is simple and reliable. When the rope is tensioned, once the rope is skewed or shaken excessively, it will drive the flashlight 702 to contact the power ring 704. At this time, the indicator light 102 below can light up to remind the staff.

[0040] The working principle of this embodiment is as follows: first, the crane rope passes through the four brush sliders 204, passes through the lifting pulley 103 and then passes through the flashlight 702. When the crane controls the rope to move to lift or lower the lifting connector 1, the rope will pass between the four brush sliders 204. Under the squeezing of the fitting spring piece 205, the bristles on the inner side of the four brush sliders 204 fit on the rope. When the rope is partially damaged or produces a lot of greasy impurities, the brush slider 204 will be stuck on the rope surface. At this time, the detection connecting plate 201 is driven to rise or fall, and the detection protrusion 203 is driven to press the squeezing block 303, which squeezes the alarm micro switch 302 and controls the indicator light 102 above to light up. Similarly, when the rope is damaged, the detection protrusion 203 presses the squeezing block 303, which squeezes the alarm micro switch 302 and controls the indicator light 102 above to light up. When the position is offset, no matter the offset direction, as long as the position is excessive, the four bristle sliders 204 can be moved horizontally with the detection connecting plate 201. At this time, the end of the detection protrusion 203 is no longer aligned with the end of the extrusion block 303. At this time, the extrusion block 303 is no longer squeezed. At this time, the alarm microswitch 302 can control the indicator light 102 above to light up. When the crane lifts the hook 401, when the hook 401 rises, the friction detection column 501 will be driven, and with the elastic squeezing of the anti-mistouch spring 502, the friction detection column 501 can be elastically fitted to the ground. When the friction detection column 501 touches the ground, the bottom switch 503 is squeezed, and the indicator light 102 in the middle is controlled to light up. At this time, the friction detection column 5 01 has friction with the ground, which can control the crane to lift the hook 401. When the friction detection column 501 is just separated from the ground, the hook 401 can automatically recover and remain vertical with the end of the boom under the action of its own weight. However, the gap between the friction detection column 501 and the ground is small, and its displacement distance is limited. During the process, the friction head 402 will also rub against the ground. In this way, after the indicator light 102 in the middle lights up as a prompt, the hook 401 is gradually lifted up, and the friction between the ground and the friction detection column 501 is used to prevent the hook 401 from swinging. Rotate the push bolt 602 to fine-tune the position of the electromagnet 603. When the hook 401 lifts the ear or strap of the cargo, the electromagnet 603 will electromagnetically attract the hook 401. At this time, The hook 401 remains stable, and the angle of the hook 401 can be changed by rotating the push bolt 602 to fine-tune the position of the electromagnet 603, and it can be adjusted regularly; when lifting goods, as the hook 401 is pulled by the rope, the rope is tensioned. Once the rope is skewed, the flashlight 702 will also be skewed. However, under the action of its own weight, the ball sleeve 703 remains vertical. Once the flashlight 702 is skewed too much, it will contact the contact circle 704. At this time, the indicator light 102 below will light up to alert the staff. Similarly, when the goods shake, the inertial force will also drive the ball sleeve 703 to shake, and the contact circle 704 will easily contact the flashlight 702, and the indicator light 102 below will light up to alert the staff.

[0041] In this article, there are a few points to note:

[0042] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0043] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0044] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A construction hoisting sling, comprising a hoisting connector (1), on which a rope test piece (2) is mounted; characterized in that: Two detection alarm components (3) are installed on the lifting connection component (1); the two detection alarm components (3) are respectively located on the upper and lower sides of the rope test component (2); the rope test component (2) is used to test the safety of the rope; The lifting connection piece (1) is provided with a connecting hook piece (4); the connecting hook piece (4) is provided with a friction detection piece (5); the friction detection piece (5) is used to reduce the shaking of the lifting connection piece (1); The hoisting connection piece (1) is provided with a hoisting position adjusting piece (6); the hoisting position adjusting piece (6) is used to adjust the hoisting position of the connecting hook piece (4); the hoisting connection piece (1) is provided with a rope angle prompting part (7); The lifting connection piece (1) comprises: a lifting hook mounting frame (101) and indicator lights (102); three indicator lights (102) are fixedly mounted on the lifting hook mounting frame (101); and the lifting hook mounting frame (101) is a plate frame structure.

2. A construction hoisting sling according to claim 1, characterized in that: The lifting connection piece (1) further comprises: a detection connection groove (1011) and a lifting pulley (103), wherein the lifting pulley (103) is rotatably mounted on a hook mounting frame (101); the lifting pulley (103) is used for rolling connection to a crane rope; and two detection connection grooves (1011) are provided on the hook mounting frame (101).

3. A construction hoisting sling according to claim 2, characterized in that: The rope test piece (2) comprises: a detection connection plate (201), a displacement tension spring (202), a detection protrusion (203), a brush slider (204) and a fitting spring sheet (205); the detection connection plate (201) is located inside two detection connection grooves (1011); the displacement tension springs (202) are fixedly mounted on the upper and lower sides of the detection connection plate (201), and the ends of the four displacement tension springs (202) are respectively connected to the two sides of the two detection connection grooves (1011); the detection connection plate (201 ) are respectively fixedly mounted with detection protrusions (203) on the upper and lower sides, and the detection protrusions (203) are of an arc-shaped structure; four bristle sliders (204) are slidably mounted on the detection connecting plate (201); the inner sides of the four bristle sliders (204) are respectively provided with steel bristles; the sides of the four bristle sliders (204) are respectively fixedly mounted with fitting spring sheets (205), and the ends of the fitting spring sheets (205) are attached to the inner side of the detection connecting plate (201); the bristles on the inner sides of the four bristle sliders (204) are respectively attached to the ropes.

4. A construction hoisting sling according to claim 3, characterized in that: The detection alarm component (3) comprises: a support plate (301), an alarm micro switch (302) and an extrusion block (303); two support plates (301) are provided, and the two support plates (301) are respectively fixedly mounted on the side of the hook mounting frame (101); the two support plates (301) are respectively fixedly mounted with an alarm micro switch (302); an extrusion block (303) is slidably mounted on the support plate (301), and the extrusion block (303) is an inclined surface structure; the extrusion block (303) fits the extrusion detection protrusion (203), and the extrusion block (303) is attached to the end of the alarm micro switch (302); the two alarm micro switches (302) are respectively electrically connected to the indicator lights (102) above.

5. A construction hoisting sling according to claim 1, characterized in that: The connecting hook member (4) comprises: a hook (401) and a friction head (402); the hook (401) is rotatably mounted on a hook mounting frame (101); the friction head (402) is fixedly mounted on the bottom of the hook (401); and the hook (401) is a cast iron structure.

6. A construction hoisting sling according to claim 5, characterized in that: The friction detection component (5) comprises: a friction detection column (501), an anti-false touch spring (502) and a bottoming switch (503); the friction detection column (501) is slidably inserted on the hook (401); the bottom of the hook (401) is sleeved with the anti-false touch spring (502); the top of the friction detection column (501) is fixedly installed with the anti-false touch spring (502), and the end of the anti-false touch spring (502) is connected to the inner side of the hook (401); the top of the friction detection column (501) is fixedly installed with the bottoming switch (503), and the bottoming switch (503) is located inside the hook (401); four slots are provided at the bottom of the friction detection column (501); the bottoming switch (503) is electrically connected to the indicator light (102) in the middle.

7. A construction hoisting sling according to claim 5, characterized in that: The hanging position adjusting member (6) comprises: a hanging position adjusting plate (601) and a pushing bolt (602); the hanging position adjusting plate (601) is fixedly mounted on the inner side of the hook mounting frame (101); the pushing bolt (602) is threadedly connected to the hanging position adjusting plate (601), and a hand wheel is provided at the tail of the pushing bolt (602).

8. A construction hoisting sling according to claim 7, characterized in that: The hanging position adjusting member (6) further comprises: an electromagnet (603), the end of the pushing bolt (602) is fixedly mounted with the electromagnet (603), and the electromagnet (603) is externally connected to a power source; the electromagnet (603) is used for magnetically attracting the hanging hook (401); and the pushing bolt (602) is used for pushing the hanging hook (401) for fine adjustment.

9. A construction hoisting sling according to claim 1, characterized in that: The rope angle prompting part (7) comprises: an installation tension spring (701) and a flashlight (702), wherein two installation tension springs (701) are provided, and the two installation tension springs (701) are respectively fixedly installed on the hook mounting frame (101); a flashlight (702) is fixedly installed between the two installation tension springs (701); a ball head structure is provided on the top of the flashlight (702); the middle part of the flashlight (702) is used to pass the rope; and a conductive structure is provided below the installation tension spring (701).

10. A construction hoisting sling according to claim 9, characterized in that: The rope angle prompting part (7) further comprises: a ball sleeve (703) and a power ring (704), wherein the ball sleeve (703) is sleeved on the power torch (702); the power ring (704) is fixedly mounted on the bottom of the ball sleeve (703), and a gap is provided between the power ring (704) and the power torch (702); the power ring (704), the power torch (702) and the indicator light (102) below are connected in series to a power source.

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