Lifting hook

Abstract

The utility model discloses a lifting hook which comprises a lifting hook body and a locking device, an inserting part is arranged at one end of the lifting hook body, and a limiting part is arranged at the other end of the lifting hook body; the locking device comprises a driving mechanism, a connecting rod mechanism and a baffle which are sequentially connected, the driving mechanism is arranged on one side of the lifting hook body, one end of the connecting rod mechanism is connected with the driving mechanism, and the other end is connected with one end of the baffle; when the lifting hook body hangs an object, the driving mechanism is started and drives the connecting rod mechanism to drive the other end of the baffle to abut against the limiting part. The driving mechanism is opened and drives the connecting rod mechanism to drive the baffle to rotate until the other end of the baffle abuts against the limiting part when the lifting hook hangs an object, so that automatic locking of the lifting hook is completed, the object hung by the lifting hook is effectively prevented from being separated from the lifting hook, time and labor are saved, and the personal safety of workers is protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting machinery technical field especially relates to a lifting hook. BACKGROUND

[0002] In prior art, hoisting machinery is widely used in various engineering construction, construction safety becomes the most important, so preventing various accidents is indispensable, especially the heavy object hoisted in high altitude, the article safety hoisted by the lifting hook is particularly important.

[0003] However, the traditional lifting hook adopts manual type to lock the lifting hook, the manual type lifting hook needs manual locking when using, not only time-consuming and laborious, but also has the risk of unstable locking, makes the object hung by the lifting hook separate from the lifting hook, causes damage to the safety of the staff. SUMMARY

[0004] The utility model embodiment provides a kind of lifting hook, to solve the problem that existing lifting hook needs manual locking time-consuming and laborious and the risk of suspended object separating from lifting hook when using.

[0005] To solve the above technical problem, the utility model is realized by the following technical scheme: provide a kind of lifting hook, comprising: hook body, the hook body one end is provided with the plug-in part, the other end is provided with the limiting portion;Locking device, the locking device includes driving mechanism, connecting rod mechanism and baffle connected in sequence, the driving mechanism is arranged on the one side of the hook body, one end of the connecting rod mechanism is connected with the driving mechanism, the other end is connected with one end of the baffle, one end of the baffle is inserted into the plug-in part;When the hook body suspends object, the driving mechanism is opened and drives the connecting rod mechanism to drive the other end of the baffle and abuts against the limiting portion.

[0006] Further, the lifting hook further includes gravity sensor, and the gravity sensor is arranged on the hook body;When the hook body suspends object, the gravity sensor controls the driving mechanism to be opened;When the object suspended by the hook body is separated, the gravity sensor controls the driving mechanism to be closed.

[0007] Further, the driving mechanism includes motor and driving rod, one end of the driving rod is connected with the motor, and the other end of the driving rod is connected with the connecting rod mechanism.

[0008] Further, the connecting rod mechanism includes first connecting rod, first rotating shaft, second connecting rod, second rotating shaft and third rotating shaft, one end of the first connecting rod is rotatably connected with the other end of the driving rod through the first rotating shaft, one end of the second connecting rod is rotatably connected with the other end of the first connecting rod through the second rotating shaft, and one end of the baffle is rotatably connected with the other end of the second connecting rod through the third rotating shaft.

[0009] Further, the hook body is mounted on a target installation, the connecting rod mechanism further comprises a third connecting rod and a fourth rotating shaft, one end of the third connecting rod is fixed on the target installation, the third connecting rod is located between the driving rod and the second connecting rod, and the first connecting rod is rotatably connected to the third connecting rod through the fourth rotating shaft.

[0010] Further, the driving rod is arranged on one side of the first connecting rod, and the third connecting rod is arranged on the other side of the first connecting rod.

[0011] Further, the second connecting rod is provided in two, one end of each of the two second connecting rods is arranged on the two sides of the other end of the first connecting rod, and the other end of each of the two second connecting rods is arranged on the two sides of one end of the baffle.

[0012] Further, the inserting part comprises a receiving cavity for accommodating one end of the baffle and a connecting groove for the third rotating shaft to pass through, and the connecting groove is arranged on the two sides of the receiving cavity.

[0013] Further, the inserting part further comprises a reserved groove, the reserved groove is arranged below the baffle, and when the hook body does not hang an object, the other end of the baffle abuts against the reserved groove.

[0014] Further, the limiting part comprises a limiting protrusion, and when the hook body hangs an object, the other end of the baffle abuts against the limiting protrusion.

[0015] Based on the hook provided in the embodiment of the present application, when the hook hangs an object, the driving mechanism is started and drives the connecting rod mechanism to drive the baffle to rotate until the other end of the baffle abuts against the limiting part, so that the automatic locking of the hook is completed, the object hung by the hook is effectively prevented from being separated from the hook, time and labor are saved, and the personal safety of the workers is protected. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0017] Fig. 1 A perspective structural schematic view of a hook provided in the embodiment of the present application is shown in the figure.

[0018] Fig. 2 An explosion schematic view of a hook provided in the embodiment of the present application is shown in the figure.

[0019] Reference signs:

[0020] 1, hook body; 11, plug-in part; 111, accommodating cavity; 112, connecting groove; 113, reserved groove; 12, limiting part; 121, limiting protrusion;

[0021] 2, locking device; 21, driving mechanism; 211, motor; 212, driving rod; 22, connecting rod mechanism; 221, first connecting rod; 222, first rotating shaft; 223, second connecting rod; 224, second rotating shaft; 225, third rotating shaft; 226, third connecting rod; 227, fourth rotating shaft; 23, baffle;

[0022] 3, target installation. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0024] Because the hook in the prior art needs to be manually locked and unlocked when in use, which is time-consuming and laborious, and the suspended object has the risk of being separated from the hook.

[0025] Please refer to Figs. 1-2 In order to solve the above technical problems, the utility model provides a hook, which comprises: a hook body 1, the hook body 1 is provided with a plug-in part 11 at one end and a limiting part 12 at the other end; a locking device 2, the locking device 2 comprises driving mechanism 21, connecting rod mechanism 22 and baffle 23 connected in sequence, the driving mechanism 21 is arranged on one side of the hook body 1, one end of the connecting rod mechanism 22 is connected with the driving mechanism 21, the other end of the connecting rod mechanism 22 is connected with one end of the baffle 23, and the one end of the baffle 23 is inserted into the plug-in part 11; when the hook body 1 suspends an object, the driving mechanism 21 is opened and drives the connecting rod mechanism 22 to drive the other end of the baffle 23 to abut against the limiting part 12.

[0026] In the embodiment of the utility model, the driving mechanism 21 is opened and drives the connecting rod mechanism 22 to drive the baffle 23 to rotate to the other end of the baffle 23 abutting against the limiting part 12 when the hook body 1 suspends an object, so that the automatic locking of the hook body 1 is completed, which effectively prevents the object suspended by the hook body 1 from being separated from the hook body 1, not only saves time and labor, but also protects the personal safety of the staff.

[0027] In some embodiments, the hook further comprises a gravity sensor (not shown) arranged on the hook body 1; when the hook body 1 suspends an object, the gravity sensor controls the driving mechanism 21 to open; when the object suspended by the hook body 1 is detached, the gravity sensor controls the driving mechanism 21 to close. The gravity sensor is arranged on the hook body 1, when the hook body 1 suspends an object, the gravity sensor sends a signal to the driving mechanism 21, the driving mechanism 21 opens and drives the connecting rod mechanism 22 to drive the other end of the baffle 23 to abut against the limiting portion 12, when the object suspended by the hook body 1 is detached, the suspended object falls to the ground, the gravity sensor is subjected to zero force, the gravity sensor sends a signal to the driving mechanism 21, the driving mechanism 21 closes and drives the connecting rod mechanism 22 to drive the other end of the baffle 23 away from the limiting portion 12.

[0028] In some embodiments, the driving mechanism 21 comprises a motor 211 and a driving rod 212, one end of the driving rod 212 is connected to the motor 211, and the other end of the driving rod 212 is connected to the connecting rod mechanism 22, when the motor 211 is started, the driving rod 212 moves linearly.

[0029] In this embodiment, the driving mechanism 21 drives the driving rod 212 to drive the connecting rod mechanism 22 to drive the baffle 23 to rotate, for example, when the hook body 1 suspends an object, the driving mechanism 21 opens and pushes the driving rod 212, thereby driving the connecting rod mechanism 22 to drive the other end of the baffle 23 to move towards the limiting portion 12 until the other end of the baffle 23 abuts against the limiting portion 12, when the object suspended by the hook body 1 is detached, the driving mechanism 21 pulls back the driving rod 212, thereby driving the connecting rod mechanism 22 to drive the other end of the baffle 23 away from the limiting portion 12, thereby completing the automatic locking and unlocking of the hook body 1, saving time and effort. Specifically, the driving mechanism 21 can also be a hydraulic or pneumatic driving device, and pushing or pulling back the driving rod 212 by a hydraulic pump or a pneumatic pump can also complete the locking and unlocking of the hook.

[0030] In some embodiments, the connecting rod mechanism 22 comprises a first connecting rod 221, a first rotating shaft 222, a second connecting rod 223, a second rotating shaft 224, and a third rotating shaft 225, one end of the first connecting rod 221 is rotatably connected to the other end of the driving rod 212 through the first rotating shaft 222, one end of the second connecting rod 223 is rotatably connected to the other end of the first connecting rod 221 through the second rotating shaft 224, and one end of the baffle 23 is rotatably connected to the other end of the second connecting rod 223 through the third rotating shaft 225.

[0031] In the embodiment, the driving rod 212 drives the first connecting rod 221 to rotate, and the first connecting rod 221 drives the second connecting rod 223 to move. For example, the first connecting rod 221 is an intermediate connecting rod between the driving rod 212 and the second connecting rod 223. When the driving rod 212 is pushed out, the second connecting rod 223 moves in the opposite direction of the movement of the driving rod 212. The second connecting rod 223 is connected to one end of the baffle 23, and the one end of the baffle 23 is inserted into the insertion portion 11. Because the included angle between the baffle 23 and the second connecting rod 223 is obtuse, the second connecting rod 223 is limited by the insertion portion 11 when pulling the baffle 23 to move, thereby driving the baffle 23 to rotate. The other end of the baffle 23 rotates relative to the second connecting rod 223 until the other end of the baffle 23 abuts against the limiting portion 12 to complete the locking of the hook body 1. Similarly, when the driving rod 212 is pulled back, the second connecting rod 223 moves in the opposite direction of the movement of the driving rod 212. The other end of the baffle 23 rotates away from the limiting portion 12 to complete the unlocking of the hook body 1.

[0032] In some embodiments, the hook body 1 is installed on a target installation 3, and a target installation 4 is fixedly installed on the top of the hook body 1. The connecting rod mechanism 22 further includes a third connecting rod 226 and a fourth rotating shaft 227. One end of the third connecting rod 226 is fixedly installed on the target installation 3. In the direction of gravity, the third connecting rod 226 is located between the driving rod 212 and the second connecting rod 223. The first connecting rod 221 is rotatably connected to the third connecting rod 226 through the fourth rotating shaft 227.

[0033] In the embodiment, the target installation 4 is a hoist arm connected by the hook. The third connecting rod 226 is fixedly installed on the target installation 3, so that the rotation of the first connecting rod 221 is more stable, thereby stably driving the second connecting rod 223 to move linearly in the opposite direction of the driving rod 212, so that the rotation of the other end of the baffle 23 is more stable, thereby stably locking the hook, and effectively preventing the object hung by the hook body 1 from falling off.

[0034] In some embodiments, the driving rod 212 is arranged on one side of the first connecting rod 221, and the third connecting rod 226 is arranged on the other side of the first connecting rod 221.

[0035] In the embodiment, the driving rod 212 and the third connecting rod 226 are arranged on both sides of the first connecting rod 221, which not only prevents the driving rod 212 and the third connecting rod 226 from interfering with each other, but also limits the first connecting rod 221 to some extent, effectively preventing the first connecting rod 221 from shaking, and making the connecting rod mechanism 22 more stable.

[0036] In some embodiments, two second connecting rods 223 are arranged. One end of each of the two second connecting rods 223 is arranged on the two sides of the other end of the first connecting rod 221, and the other end of each of the two second connecting rods 223 is arranged on the two sides of one end of the baffle 23.

[0037] In the embodiment, the two second connecting rods 223 are respectively arranged on the two sides of the first connecting rod 221 and the baffle 23, which can stably drive the baffle 23 to rotate and prevent the other end of the baffle 23 from deviating relative to the limiting part 12.

[0038] Specifically, the inserting part 11 includes a receiving cavity 111 for accommodating one end of the baffle 23 and a connecting groove 112 for the third rotating shaft 225 to pass through, and the connecting groove 112 is arranged on the two sides of the receiving cavity 111.

[0039] In the embodiment, one end of the baffle 23 is inserted into the receiving cavity 111, and during the automatic locking and unlocking, the one end of the baffle 23 moves forward and backward in the receiving cavity 111. The third rotating shaft 225 passes through the connecting groove 112 to connect the one end of the baffle 23, so as to ensure that the second connecting rod 223 can drive the baffle 23 to rotate. Specifically, the height of the inserting part 11 is higher than the height of the limiting part 12. In the embodiment, the height of the inserting part 11 is higher than the height of the limiting part 12, which ensures that when the object is hung on the hook body 1, the other end of the baffle 23 can abut against the limiting part 12, and when the object hung on the hook body 1 is detached, the other end of the baffle 23 can be away from the limiting part 12 and does not contact the bottom of the hook body 1.

[0040] Specifically, the inserting part 11 further includes a reserved groove 113, which is arranged below the baffle 23. When the hook body 1 is not hung with an object, one end of the baffle 23 abuts against the reserved groove 113. In the embodiment, the reserved groove 113 ensures that when the object hung on the hook body 1 is detached, the other end of the baffle 23 can be away from the limiting part 12 and hung on the inserting part 11, and the other end of the baffle 23 does not contact the bottom of the hook body 1.

[0041] Specifically, the hook body 1 is substantially arc-shaped, the limiting part 12 includes a limiting protrusion 121 protruding from the inner wall of one end of the arc-shaped hook body 1, the other end of the arc-shaped hook body 1 is connected with the target installation object 3, and the receiving cavity 111, the connecting groove 112 and the reserved groove 113 are arranged on the other end. When the hook body 1 is hung with an object, the other end of the baffle 23 abuts against the lower edge of the limiting protrusion 121. In the embodiment, when the automatic locking is performed, the limiting protrusion 121 blocks the other end of the baffle 23, so that the other end is turned upward, and when the unlocking is performed, the other end of the baffle 23 is turned downward until the other end abuts against the inner wall of the hook body 1, so that the baffle 23 completes the automatic locking and unlocking of the hook body 1.

[0042] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the utility model, it is understood that if there are terms "upper", "lower", "left", "right" and the like indicating the orientation or positional relationship, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the utility model, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0043] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A hook, characterized in that The hook comprises: a hook body, one end of which is provided with an insertion part, and the other end of which is provided with a limiting part; a locking device, which comprises a driving mechanism, a connecting rod mechanism and a baffle in sequence, the driving mechanism is arranged on one side of the hook body, one end of the connecting rod mechanism is connected to the driving mechanism, and the other end of the connecting rod mechanism is connected to one end of the baffle, and the other end of the baffle is inserted into the insertion part; when the hook body suspends an object, the driving mechanism is opened and drives the connecting rod mechanism to drive the other end of the baffle to abut against the limiting part.

2. The hook of claim 1, wherein The hook further comprises a gravity sensor, which is arranged on the hook body; when the hook body suspends an object, the gravity sensor controls the driving mechanism to be opened; when the object suspended by the hook body is removed, the gravity sensor controls the driving mechanism to be closed.

3. The hook of claim 1, wherein The driving mechanism comprises a motor and a driving rod, one end of the driving rod is connected to the motor, and the other end of the driving rod is connected to the connecting rod mechanism.

4. The hook of claim 3, wherein The connecting rod mechanism comprises a first connecting rod, a first rotating shaft, a second connecting rod, a second rotating shaft and a third rotating shaft, one end of the first connecting rod is rotatably connected to the other end of the driving rod through the first rotating shaft, one end of the second connecting rod is rotatably connected to the other end of the first connecting rod through the second rotating shaft, and one end of the baffle is rotatably connected to the other end of the second connecting rod through the third rotating shaft.

5. The hook of claim 4, wherein, The hook body is installed on a target installation, the connecting rod mechanism further comprises a third connecting rod and a fourth rotating shaft, one end of the third connecting rod is fixed on the target installation, the third connecting rod is located between the driving rod and the second connecting rod, and the first connecting rod is rotatably connected to the third connecting rod through the fourth rotating shaft.

6. The hook of claim 5, wherein, The driving rod is arranged on one side of the first connecting rod, and the third connecting rod is arranged on the other side of the first connecting rod.

7. The hook of claim 4, wherein The second connecting rod is provided with two ends, one end of each of the two second connecting rods is arranged on the other side of the first connecting rod, and the other end of each of the two second connecting rods is arranged on the other side of the baffle.

8. A hook according to claim 7, characterised in that The insertion part comprises a receiving cavity for accommodating one end of the baffle and a connecting groove for the third rotating shaft to pass through, and the connecting groove is arranged on both sides of the receiving cavity.

9. The hook of claim 8, wherein, The insertion part further comprises a reserved groove, which is arranged below the baffle, and when the hook body does not suspend an object, one end of the baffle abuts against the reserved groove.

10. The lifting hook of claim 1, wherein, The limiting part comprises a limiting protrusion, and when the hook body suspends an object, the other end of the baffle abuts against the limiting protrusion.

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