Lifting hook for constructional engineering

Abstract

The utility model belongs to the technical field of constructional engineering, and particularly relates to a lifting hook for constructional engineering, which comprises a buffer bin, a connecting rod and a lifting hook body, and further comprises a plurality of buffer mechanisms, a baffle, a second spring, a guide rod and a fixing mechanism, the second spring is installed on the baffle, a sealing block is rotatably installed at an opening of the lifting hook body, the fixing mechanism is installed on a rotating shaft of the sealing block, the first moving groove is formed in the inner wall of the buffering bin, and the stopping block is installed on the first moving groove through the first spring. Protrusions with triangular sections are arranged on the opposite faces of the stopping blocks. The buffering effect is achieved through cooperation of the stopping block and the first spring, the working effect of the buffering mechanisms is guaranteed by arranging the multiple buffering mechanisms, and the sealing performance of the lifting hook body is guaranteed by arranging the sealing block provided with the fixing mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction engineering, and in particular relates to a lifting hook for construction engineering. Background Art

[0002] With the continuous development of urbanization and the deepening of urban construction, the construction and construction of various buildings are constantly in progress. Hoisting equipment is often used in construction to hoist building materials and equipment. As one of the key components in lifting equipment, the hook has been widely used in various loading, unloading and handling operations. When the existing hook is in use, the upward force instantly pulls the hook, which causes the tension received by the rope hoisted on the hook to increase instantly, which is easy to cause the rope on the hook to break, reducing the safety of the hook hoisting. In order to avoid this phenomenon, a buffer mechanism will be set on the hook. The existing hook is only provided with a separate buffer mechanism. When the buffer mechanism is damaged, the hook cannot buffer the force received on the rope, and the separate buffer mechanism is subjected to too much force, which affects the service life of the buffer mechanism. Utility Model Content

[0003] The utility model provides a hook for construction engineering to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hook for construction engineering, comprising a buffer bin, a connecting rod and a hook body, and also comprising a buffer mechanism, a baffle, a second spring, a guide rod and a fixing mechanism, wherein a plurality of the buffer mechanisms are installed on the inner side wall of the buffer bin, the top of the hook body is installed with the connecting rod, the top end of the connecting rod penetrates the bottom of the buffer bin and is then installed on the baffle, the second spring connected to the bottom surface of the inner wall of the buffer bin is installed on the baffle, a sealing block is rotatably installed at the opening of the hook body, and the fixing mechanism is installed on the rotating shaft of the sealing block;

[0005] The buffer mechanism includes a spring 1, a blocking block, a movable groove 1, a movable groove 2 and a buffer pad. The movable groove 1 is opened on the opposite surface of the inner wall of the buffer bin, and the blocking block is installed on the movable groove 1 through the spring 1. A protrusion with a triangular cross-sectional shape is provided on the opposite surface of the blocking block. The movable groove 2 is opened on the left and right side walls of the movable groove 1, and a protrusion matching the movable groove 2 is provided on the side wall of the blocking block.

[0006] Preferably, the baffle is composed of two identical frustums with larger end faces in contact, the opposite surface of the blocking block is shaped as an arc surface matching the baffle, and the inclination angle of the raised slope of the opposite surface of the blocking block is the same as the inclination angle of the slope of the baffle.

[0007] Preferably, the buffer pad is installed on the protrusion on the opposite side of the blocking block.

[0008] Preferably, the guide rods penetrating the baffle are symmetrically mounted on the inner wall of the buffer bin.

[0009] Preferably, the fixing mechanism includes a ratchet, a block, a movable groove three, a spring three, a fixing rod, a mounting disk and a turntable, the ratchet is mounted on the rotating shaft of the sealing block, the movable groove three is opened on the side wall of the groove of the hook body for mounting the ratchet, the mounting disk is mounted on the movable groove three through the spring three, the block is rotatably mounted on the left side wall of the mounting disk, the support rod of the block passes through the hook body and the mounting disk, and the cross-sectional shape of the block is circular.

[0010] Preferably, the turntable is installed on the top end of the support rod of the stopper, the fixing rod is installed on the side wall of the hook body, and through holes matching the fixing rod are symmetrically opened on the turntable.

[0011] Preferably, the length of the fixing rod is greater than the length of the teeth of the ratchet, and the length of the fixing rod is less than the length of the movable slot three.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model achieves a buffering effect through the cooperation of the blocking block and the spring one, and by arranging a transversely installed blocking block, it is ensured that the blocking block that has blocked the baffle will leave the baffle, thereby reducing the damage to the blocking block during the blocking process and extending the service life of the buffer mechanism. By arranging multiple buffer mechanisms to buffer the force received by the pull rope, the working effect of the buffer mechanism is ensured, and the buffering effect of the device is ensured through the cooperation of the spring two and the buffer mechanism. By arranging a sealing block equipped with a fixing mechanism, the closedness of the hook body is ensured, and by arranging a rotatable blocking block, it is convenient for users to load and unload objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 The structural diagram at A in the middle;

[0016] Figure 3 It is a structural schematic diagram of the buffer mechanism in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the fixing mechanism in the utility model;

[0018] Figure 5It is a top view structural schematic diagram of the fixing mechanism in the utility model;

[0019] Figure 6 for Figure 4 The structural diagram at B in the middle;

[0020] Figure 7 It is a schematic diagram of the structure of the turntable in the utility model.

[0021] In the figure: 1, buffer bin 2, buffer mechanism 21, spring 1 22, blocking block 23, moving groove 1 24, moving groove 2 25, buffer pad 3, baffle 4, connecting rod 5, spring 2 6, guide rod 7, hook body 71, sealing block 8, fixing mechanism 81, ratchet 82, block 83, moving groove 3 84, spring 3 85, fixing rod 86, mounting plate 87, turntable. DETAILED DESCRIPTION

[0022] See also Figure 1-7 The utility model provides the following technical solutions: a hook for construction engineering, comprising a buffer bin 1, a connecting rod 4 and a hook body 7, and also comprising a buffer mechanism 2, a baffle 3, a spring 2 5, a guide rod 6 and a fixing mechanism 8. Several buffer mechanisms 2 are installed on the inner side wall of the buffer bin 1, a connecting rod 4 is installed on the top of the hook body 7, the top of the connecting rod 4 passes through the bottom of the buffer bin 1 and is then installed on the baffle 3, the baffle 3 is installed with a spring 2 5 connected to the bottom surface of the inner wall of the buffer bin 1, a sealing block 71 is rotatably installed at the opening of the hook body 7, and a fixing mechanism 8 is installed on the rotating shaft of the sealing block 71;

[0023] The buffer mechanism 2 includes a spring 21, a blocking block 22, a movable groove 23, a movable groove 24 and a buffer pad 25. A movable groove 23 is opened on the opposite surface of the inner wall of the buffer bin 1, and the blocking block 22 is installed on the movable groove 23 through the spring 21. A protrusion with a triangular cross-sectional shape is provided on the opposite surface of the blocking block 22. A movable groove 24 is opened on the left and right side walls of the movable groove 23, and a protrusion matching the movable groove 24 is provided on the side wall of the blocking block 22.

[0024] A semi-ring for installing a lifting rope is provided on the top surface of the buffer bin 1. The hook body 7 can be installed on the buffer bin 1 through the cooperation of the baffle plate 3 and the connecting rod 4. The spring 2 5 installed on the baffle plate 3 can buffer the moving baffle plate 3, reduce the instantaneous force on the pull rope when the device lifts the object, and ensure the safety of the pull rope. The moving baffle plate 3 can be blocked by the buffer mechanism 2 when the device lifts the object, slowing down the moving speed of the baffle plate 3, and further reducing the instantaneous force on the pull rope. By setting a plurality of buffer mechanisms 2, the working effect of the buffer mechanism 2 is improved. The hook body 7 is used to lift objects. The sealing block 71 can seal the opening of the hook body 7, thereby improving the airtightness of the hook body 7. The fixing mechanism 8 installed on the sealing block 71 can fix the sealing block 71, thereby ensuring the working effect of the sealing block 71.

[0025] The convex shape on the opposite surface of the blocking block 22 ensures that the moving baffle 3 can push the blocking block 22. The blocking block 22 pushed by the baffle 3 will compress the spring 1 21. The cooperation between the spring 1 21 and the blocking block 22 can play the role of blocking the baffle 3. After the baffle 3 leaves the blocking block 22, the pushed blocking block 22 returns to its original position under the action of the spring 1 21, ensuring that the next use of the buffer mechanism 2 is not affected. The convex shape on the opposite surface of the blocking block 22 ensures that after the object is unloaded from the hook body 7, the spring 1 The rising hook body 7 under the action of spring 25 can also push the blocking block 22, so that the baffle 3 can return to its original position under the action of spring 25, thereby ensuring the buffering effect when the device is used next time. The cooperation between the movable groove 24 and the side wall protrusion of the blocking block 22 plays a guiding role, thereby ensuring the stability of the blocking block 22 during the movement process. The cooperation between the movable groove 24 and the side wall protrusion of the blocking block 22 also plays a limiting role, thereby preventing the blocking block 22 from separating from the movable groove 1 23, thereby ensuring the stability of the buffer mechanism 2.

[0026] Specifically, the baffle 3 is composed of two identical frustums with larger end faces in contact, the opposite surface of the blocking block 22 is shaped as an arc surface matching the baffle 3, and the inclination angle of the raised inclined surface of the opposite surface of the blocking block 22 is the same as the inclination angle of the inclined surface of the baffle 3.

[0027] The shape of the blocking block 22 ensures that the shape of the protrusion on the opposite surface of the blocking block 22 matches the shape of the baffle plate 3. The shape of the baffle plate 3 increases the contact area between the protrusions on the opposite surfaces of the baffle plate 3 and the blocking block 22, thereby improving the blocking effect of the blocking block 22. The inclination angle of the inclined surface of the protrusion on the opposite surface of the blocking block 22 ensures that the inclined surface of the baffle plate 3 can fit together with the inclined surface of the protrusion on the opposite surface of the blocking block 22, thereby improving the blocking effect of the blocking block 22.

[0028] Specifically, a buffer pad 25 is installed on the protrusion on the opposite side of the blocking block 22.

[0029] The buffer pad 25 can play a buffering role when the baffle plate 3 contacts the blocking block 22, reducing the damage to the blocking block 22 and the baffle plate 3 when the baffle plate 3 contacts the blocking block 22, extending the service life of the blocking block 22 and the baffle plate 3, and the buffer pad 25 also increases the friction between the blocking block 22 and the baffle plate 3, further improving the working effect of the buffer mechanism 2.

[0030] Specifically, guide rods 6 penetrating the baffle plate 3 are symmetrically mounted on the inner wall of the buffer bin 1 .

[0031] The guide rod 6 plays a guiding role, ensuring the stability of the baffle 3 during movement. The guide rod 6 can also prevent the baffle 3 from rotating during movement, ensuring the stability of the hook body 7 during use of the device.

[0032] Specifically, the fixing mechanism 8 includes a ratchet 81, a block 82, a movable groove three 83, a spring three 84, a fixing rod 85, a mounting plate 86 and a turntable 87. The ratchet 81 is installed on the rotating shaft of the sealing block 71. The movable groove three 83 is opened on the side wall of the groove of the hook body 7 for mounting the ratchet 81. The mounting plate 86 is installed on the movable groove three 83 through the spring three 84. The block 82 is rotatably installed on the left side wall of the mounting plate 86. The support rod of the block 82 passes through the hook body 7 and the mounting plate 86. The cross-sectional shape of the block 82 is circular.

[0033] The ratchet 81 and the stopper 82 cooperate to make the sealing block 71 only unidirectionally rotatable. When the sealing block 71 closes the hook body 7, the object hoisted on the hook body 7 cannot push the sealing block 71 out of the hook body 7, thereby ensuring the working effect of the sealing block 71. The teeth of the ratchet 81 are oriented so that the sealing block 71 can only rotate toward the inside of the hook body 7 to ensure that when the user hangs an object on the hook body 7, the object will not be hindered from pushing the sealing block 71 toward the inside of the hook body 7, thereby facilitating the user to hang the object on the hook body 7. The support rod of the stopper 82 extends out of the hook body 7, and the fixation of the stopper 82 to the ratchet 81 can be released by pulling the support rod of the stopper 82. The spring three 84 ensures that the block 82 can quickly return to its original position after being pushed, thereby ensuring the fixing effect of the block 82. The shape of the block 82 ensures that the user can change the direction of the inclined surface of the block 82 by rotating the block 82. After the direction of the inclined surface of the block 82 is changed, the object hoisted on the hook body 7 can push the block 71 out of the hook body 7, so that the user can remove the object from the hook body 7. The spring three 84 is installed on the mounting plate 86, and the mounting plate 86 is rotatably installed on the block 82 to ensure that the block 82 will not be hindered by the movable groove three 83 when rotating.

[0034] Specifically, a rotating disk 87 is installed on the top of the support rod of the stopper 82 , a fixing rod 85 is installed on the side wall of the hook body 7 , and through holes matching the fixing rod 85 are symmetrically opened on the rotating disk 87 .

[0035] The turntable 87 is convenient for the user to rotate the stopper 82. The cooperation between the fixing rod 85 and the turntable 87 can prevent the stopper 82 from rotating during the pushing process, thereby ensuring the stability of the stopper 82 during use. The symmetrical grooves on the turntable 87 that match the fixing rod 85 ensure that after the user rotates the stopper 82 180°, the cooperation between the fixing rod 85 and the turntable 87 can still prevent the stopper 82 from rotating during the movement.

[0036] Specifically, the length of the fixing rod 85 is greater than the length of the teeth of the ratchet 81 , and the length of the fixing rod 85 is less than the length of the movable slot three 83 .

[0037] The length of the fixing rod 85 ensures that when the ratchet 81 pushes the stopper 82, the turntable 87 will not separate from the fixing rod 85, thereby ensuring the working effect of the fixing rod 85. The length of the fixing rod 85 also allows the user to pull the turntable 87 away from the fixing rod 85, thereby ensuring that the fixing rod 85 will not hinder the user from adjusting the direction of the inclined surface of the stopper 82.

[0038] The working principle and use process of the utility model are as follows: tie the pull rope to the buffer bin 1, hang the object on the hook body 7, move the turntable 87, release the fixation of the stopper 82 to the ratchet 81, at this time the sealing block 71 rotates back to its original position under the action of gravity, loosen the turntable 87, and the stopper 82 returns to its original position under the action of the moving groove three 83. When the object is lifted, the baffle plate 3 moves downward under the drive of the hook body 7 on which the object is hung, and the downward moving baffle plate 3 compresses the spring two 5. As the baffle plate 3 moves, the baffle plate 3 pushes the blocking block 22, and the pushed blocking block 22 squeezes the spring one 21, and through the spring one 21 and The blocking block 22 cooperates to buffer the baffle 3. After the baffle 3 leaves the blocking block 22, the blocking block 22 returns to its original position under the action of spring 1 21. The baffle 3 is multiple-buffered by multiple buffer mechanisms 2. After the lifting is completed, the baffle 3 returns to its original position under the action of spring 2 5. When removing the object, pull the blocking block 82, and rotate the blocking block 82 after the turntable 87 leaves the fixed rod 85. Rotate the turntable 87 180°, release the blocking block 82, and the turntable 87 returns to the fixed rod 85. At this time, the sealing block 71 can rotate toward the outside of the hook body 7, which is convenient for the user to remove the object from the hook body 7.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hook for construction engineering, comprising a buffer bin (1), a connecting rod (4) and a hook body (7), characterized in that: It also comprises a buffer mechanism (2), a baffle (3), a second spring (5), a guide rod (6) and a fixing mechanism (8); a plurality of the buffer mechanisms (2) are installed on the inner side wall of the buffer bin (1); the top of the hook body (7) is installed with the connecting rod (4); the top end of the connecting rod (4) passes through the bottom of the buffer bin (1) and is then installed on the baffle (3); the second spring (5) connected to the bottom surface of the inner wall of the buffer bin (1) is installed on the baffle (3); a sealing block (71) is rotatably installed at the opening of the hook body (7); the fixing mechanism (8) is installed on the rotating shaft of the sealing block (71); The buffer mechanism (2) comprises a spring 1 (21), a blocking block (22), a movable groove 1 (23), a movable groove 2 (24) and a buffer pad (25); the movable groove 1 (23) is provided on the opposite surface of the inner wall of the buffer bin (1); the blocking block (22) is mounted on the movable groove 1 (23) via the spring 1 (21); a protrusion with a triangular cross-section is provided on the opposite surface of the blocking block (22); the movable groove 2 (24) is provided on the left and right side walls of the movable groove 1 (23); and a protrusion matching the movable groove 2 (24) is provided on the side wall of the blocking block (22).

2. A construction engineering hook according to claim 1, characterized in that: The baffle (3) is composed of two identical truncated cones with contacting end faces of larger areas, the opposite surface of the blocking block (22) is in the shape of an arc surface matching the baffle (3), and the inclination angle of the convex inclined surface of the opposite surface of the blocking block (22) is the same as the inclination angle of the inclined surface of the baffle (3).

3. A construction engineering hook according to claim 1, characterized in that: The buffer pad (25) is installed on the protrusion on the opposite side of the blocking block (22).

4. A construction engineering hook according to claim 1, characterized in that: The guide rods (6) penetrating the baffle plate (3) are symmetrically mounted on the inner wall of the buffer bin (1).

5. A construction engineering hook according to claim 1, characterized in that: The fixing mechanism (8) comprises a ratchet (81), a stopper (82), a movable groove (83), a spring (84), a fixing rod (85), a mounting plate (86) and a rotating plate (87); the ratchet (81) is mounted on the rotating shaft of the sealing block (71); the movable groove (83) is provided on the side wall of the groove of the hook body (7) for mounting the ratchet (81); the mounting plate (86) is mounted on the movable groove (83) via the spring (84); the stopper (82) is rotatably mounted on the left side wall of the mounting plate (86); the support rod of the stopper (82) passes through the hook body (7) and the mounting plate (86); and the cross-sectional shape of the stopper (82) is circular.

6. A construction engineering hook according to claim 5, characterized in that: The rotating disk (87) is installed on the top end of the support rod of the stopper (82), the fixing rod (85) is installed on the side wall of the hook body (7), and the rotating disk (87) is symmetrically provided with through holes matching the fixing rod (85).

7. A construction engineering hook according to claim 5, characterized in that: The length of the fixing rod (85) is greater than the length of the teeth of the ratchet (81), and the length of the fixing rod (85) is less than the length of the movable slot three (83).

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