Anti-dropping lifting hook

Abstract

The utility model discloses an anti-dropping lifting hook which comprises a hook body and a material stopper, the hook body comprises a hook head, a hook rod and a hook tail which are integrally arranged, the material stopper comprises a blocking tongue part, a mounting part and a counterweight part, the blocking tongue part is connected with the mounting part at an obtuse angle, the mounting part is provided with a mounting long hole for the hook rod to penetrate through, and the mounting part is hinged with the hook tail through a pin shaft; when the counter weight part drives the material stopper to rotate around the pin shaft until the tongue stopping part abuts against the inner side of the hook head, the anti-falling lifting hook is in a closed state, the weight of the counter weight part enables the anti-falling lifting hook to be always kept in the closed state, the lifting appliance is not prone to falling off from the anti-falling lifting hook in the process that the lifting hook lifts a product through the lifting appliance, and reliability is high. And when the counter weight part is poked and the stopper rotates around the pin shaft until the tongue blocking part is inwards far away from the inner side of the hook head, the anti-falling lifting hook is in an opening state. When the counter weight part of the material stopper is manually shifted, little effort is consumed, and the operation is easy. The anti-dropping lifting hook disclosed by the utility model can prevent a lifting appliance from being unhooked, and is easy to operate and long in service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of hooks, and in particular relates to an anti-drop hook. Background Art

[0002] In the existing application of hooks, if no anti-unhooking device is provided, the rope hanging the heavy object may slip off the hook during operation, causing equipment damage or casualties.

[0003] Our factory's workshop mainly produces large wheel hubs and brake discs, which require hooks to lift and move products such as wheel hubs and brake discs. The hook structure currently used mainly includes a hook body and a stopper shrapnel. The hook tail of the hook body is rotatably connected to the tail end of the stopper shrapnel. A torsion spring is provided between the hook body and the stopper shrapnel, so that the stopper shrapnel has the elastic force to rotate outward. When employees use the hook to connect with the sling, they frequently hit the stopper shrapnel, and the shrapnel transmits the force to the torsion spring. After a period of use, the torsion spring is prone to failure, resulting in the stopper shrapnel failing to prevent it from falling off in the later stage, causing equipment damage or casualties. According to statistics, the hooks in our factory's workshop are damaged once every 5 months. Not only do they need to replace the hooks frequently, but there are also major safety hazards. Utility Model Content

[0004] In order to overcome the above-mentioned deficiencies of the prior art, the technical problem to be solved by the utility model is to provide an anti-drop hook which can prevent the sling from falling off and has a long service life.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An anti-drop hook comprises a hook body and a material stopper, and is characterized in that:

[0007] The hook body comprises an integral hook head, a hook rod and a hook tail, the material stopper comprises a tongue portion, a mounting portion and a counterweight portion, the tongue portion is connected to the mounting portion at an obtuse angle, the mounting portion is provided with a mounting long hole for the hook rod to pass through, the mounting portion is hinged to the hook tail through a pin shaft,

[0008] When the counterweight drives the material stopper to rotate around the pin until the stop tongue abuts against the inner side of the hook head, the anti-drop hook is in a closed state.

[0009] When the counterweight portion is moved and the material stopper rotates around the pin shaft until the stop tongue portion moves inwardly away from the inner side of the hook head, the anti-drop hook is in an open state.

[0010] Preferably, a avoidance groove is provided on the top surface of the mounting portion of the material stopper.

[0011] Preferably, the avoidance groove is configured as an arc-shaped groove.

[0012] Preferably, the counterweight portion is configured as a square body.

[0013] Preferably, the bottom of the square body is provided with a concave arc surface for easy lifting.

[0014] After adopting the above technical solution, the beneficial effects of the utility model are:

[0015] The utility model discloses an anti-drop hook, comprising a hook body and a material stopper, wherein the hook body comprises an integrally arranged hook head, a hook rod and a hook tail, the material stopper comprises a tongue portion, a mounting portion and a counterweight portion, the tongue portion is connected to the mounting portion at an obtuse angle, the mounting portion is provided with a mounting long hole for the hook rod to pass through, the mounting portion is hinged with the hook tail through a pin, when the counterweight portion drives the material stopper to rotate around the pin until the tongue portion abuts against the inner side of the hook head, the anti-drop hook is in a closed state, the weight of the counterweight portion makes the anti-drop hook always maintain the closed state, and the hook can be lifted by the sling in the process of lifting the product, and the sling is not easy to fall out of the anti-drop hook, and the reliability is high. When the counterweight portion is moved, the material stopper rotates around the pin until the tongue portion moves inwardly away from the inner side of the hook head, and the anti-drop hook is in an open state. In the open state, the hook buckle of the sling passes through the hook head of the hook body, and finally the sling is hung on the hook rod, and when the counterweight portion of the material stopper is manually moved, the effort spent is very small, and it is easy to operate.

[0016] In summary, the anti-drop hook of the utility model can prevent the sling from being dropped, is easy to operate, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the anti-drop hook of the utility model;

[0018] Figure 2 It is a schematic diagram of the anti-drop hook in a closed state;

[0019] Figure 3 It is a schematic diagram of the anti-drop hook in the open state;

[0020] In the figure: 1. hook body; 101. hook head; 102. hook rod; 1021. mounting long hole; 103. hook tail; 2. material stopper; 201. tongue stopper; 202. mounting part; 2021. avoidance groove; 203. counterweight part; 3. pin shaft. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the utility model, but it is not intended to limit the scope of protection of the claims attached to the utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] In addition, although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0024] The embodiment of the utility model discloses Figure 1 and Figure 2 The anti-drop hook shown comprises a hook body 1 and a material stopper 2. The hook body 1 comprises an integrally arranged hook head 101, a hook rod 102 and a hook tail 103. The material stopper 2 comprises a tongue stopper 201, a mounting portion 202 and a counterweight portion 203. The tongue stopper 201 is connected to the mounting portion 202 at an obtuse angle. The mounting portion 202 is provided with a mounting long hole 1021 for the hook rod 102 to pass through. The mounting portion 202 is hinged to the hook tail 103 through a pin shaft 3.

[0025] like Figure 2 As shown, when the counterweight 203 drives the stopper 2 to rotate around the pin 3 until the tongue portion 201 abuts against the inner side of the hook head 101, the anti-drop hook is in a closed state. The weight of the counterweight 203 keeps the anti-drop hook in a closed state, so that when the hook is lifted by the lifting device, the lifting device is not likely to fall out of the anti-drop hook, and the reliability is high.

[0026] like Figure 3 As shown, when the counterweight 203 is moved and the stopper 2 rotates around the pin shaft 3 until the tongue portion 201 moves inward away from the inner side of the hook head 101, the anti-drop hook is in an open state. In the open state, the hook of the sling passes through the hook head 101 of the hook body 1, and the sling is finally hung on the hook rod 102. When the counterweight 203 of the stopper 2 is manually moved, little effort is spent and it is easy to operate.

[0027] The stopper 2 of the utility model is hinged with the hook body 1 through the pin 3, and the stopper 2 forms a lever at the pin 3. The counterweight 203 of the stopper 2 uses its own gravity to rotate the stopper 2 around the pin 3 until the tongue portion 201 abuts against the inner side of the hook head 101, so that the anti-drop hook is in a closed state. The hook is in a closed state under normal conditions. When the anti-drop hook needs to be opened, the counterweight 203 of the stopper 2 is manually moved, and the stopper 2 rotates counterclockwise around the pin 3, and the tongue portion 201 rotates inwardly away from the inner side of the hook head 101, so that the anti-drop hook becomes an open state. When the counterweight 203 of the stopper 2 is manually moved, the effort spent is very small and it is easy to operate.

[0028] In some embodiments, the top surface of the mounting portion 202 of the stopper 2 is provided with an avoidance groove 2021. Preferably, the avoidance groove 2021 is set as an arc groove. This can not only prevent the top surface of the mounting portion 202 from interfering with the hook body 1 when the stopper 2 rotates around the pin 3, but also expand the angle range of the stopper 2 rotating around the pin 3.

[0029] In some embodiments, the counterweight part 203 is configured as a square body. The bottom of the square body is provided with an inner concave arc surface for easy lifting. Of course, the counterweight part 203 can also be configured as other shapes. The bottom of the square body is provided with an inner concave arc surface for easy lifting, thereby facilitating the moving of the material stopper 2.

[0030] The anti-drop hook of the utility model has a material stopper 2 formed with a lever at the pin shaft 3, and the counterweight 203 of the material stopper 2 uses its own gravity to rotate the material stopper 2 around the pin shaft 3 until the tongue portion 201 abuts against the inner side of the hook head 101, so that the anti-drop hook is in a closed state, and the anti-drop hook can be changed to an open state by manually shifting the counterweight 203 of the material stopper 2. When manually shifting the counterweight 203 of the material stopper 2, the effort spent is very small, and it is easy to operate, and the anti-drop effect of the hook is good and not easy to fail. Compared with the traditional hook, there is no need to set a torsion spring between the hook body 1 and the spring sheet of the material stopper 2, and the torsion spring will not fail due to long-term use, which will cause the anti-drop failure of the hook.

[0031] The technical solution of the utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Those skilled in the art should understand that various changes made thereto in form and details fall within the protection scope defined by the claims of the utility model.

Claims

1. An anti-drop hook, comprising a hook body and a material stopper, characterized in that: The hook body comprises an integral hook head, a hook rod and a hook tail, the material stopper comprises a tongue portion, a mounting portion and a counterweight portion, the tongue portion is connected to the mounting portion at an obtuse angle, the mounting portion is provided with a mounting long hole for the hook rod to pass through, the mounting portion is hinged to the hook tail through a pin shaft, When the counterweight drives the material stopper to rotate around the pin until the stop tongue abuts against the inner side of the hook head, the anti-drop hook is in a closed state. When the counterweight portion is moved and the material stopper rotates around the pin shaft until the stop tongue portion moves inwardly away from the inner side of the hook head, the anti-drop hook is in an open state.

2. The anti-drop hook according to claim 1, characterized in that: The top surface of the mounting portion of the material stopper is provided with an avoidance groove.

3. The anti-drop hook according to claim 2, characterized in that: The avoidance groove is configured as an arc-shaped groove.

4. The anti-drop hook according to claim 1, characterized in that: The counterweight part is configured as a square body.

5. The anti-drop hook according to claim 4, characterized in that: The bottom of the square body is provided with an inner concave arc surface for easy lifting.

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