Crane hook
By designing a protective sleeve and a limiting structure for the hook, the problems of rust and dust accumulation when the hook is idle are solved, thus achieving hook protection and stability of the suspended object.
Patent Information
- Application Number
- CN202520267614.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-19
AI Technical Summary
When hooks are not in use, they are easily exposed to the air and are prone to rusting and dust accumulation, which affects their service life.
A hook with a protective sleeve and a limiting structure was designed. Through the cooperation of a sliding rod and a spring, the protective sleeve can be placed on the surface of the hook head to prevent it from being exposed to the air, and the limiting rod and torsion spring structure ensure that the suspended object does not detach.
It effectively prevents hooks from rusting, extends their service life, and maintains the stability of suspended objects.
Smart Images
Figure CN223687948U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to crane technical field, especially, relate to a crane hook. BACKGROUND
[0002] The hook is the most common lifting appliance in hoisting machinery, and is usually hung on the steel wire rope of the lifting mechanism with the help of a pulley block or other components. The crane hook can be divided into single hook and double hook according to shape. The single hook is simple to manufacture and convenient to use, and can be more conveniently hoisted and transported.
[0003] At present, the hook is an important component of the crane. After the crane finishes hoisting and transporting with the hook, the idle hook is mostly directly exposed to the air. The hook directly exposed to the air is easily eroded by rain and moisture and rusted. In addition, dust and other sundries can accumulate on the surface of the hook directly exposed to the air, which may further cause rust. Therefore, a crane hook is needed, which can protect the idle hook through a protective structure to avoid the idle hook directly exposed to the air and rusted, thereby prolonging the service life of the hook. SUMMARY
[0004] The utility model aims at providing a crane hook, which can protect the idle hook through a protective structure to avoid the idle hook directly exposed to the air and rusted, thereby prolonging the service life of the hook, so as to solve the above background technical problems.
[0005] The utility model solves the above technical problems by the following technical scheme: a crane hook, comprising a hook body, a hook wheel set rotatably connected to the inner cavity of the hook body, a rotating block rotatably connected to the bottom of the hook body, a hook head rotatably connected to the bottom of the rotating block, a protective sleeve sleeved on the surface of the hook head, two symmetrical connecting pieces fixedly connected to the top of the protective sleeve, a fixed block fixedly connected to the two sides of the hook body, a sliding frame fixedly connected to the two sides of the hook body, the connecting pieces located between the fixed block and the sliding frame, a sliding groove opened on the front surface of the sliding frame, a sliding rod slidably connected to the inner cavity of the sliding groove, the sliding rod penetrating through the connecting pieces and entering the inner cavity of the fixed block, a limiting ring fixedly connected to the surface of the sliding rod, a spring sleeved on the surface of the sliding rod, one end of the spring fixedly connected to the limiting ring, the other end of the spring fixedly connected to the inner wall of the sliding groove, and a pulling block fixedly connected to the end of the sliding rod away from the fixed block and extending to the outside of the sliding groove.
[0006] Preferably, a limiting rod is arranged in the inner cavity of the hook head, a torsional spring is arranged on the right side of the limiting rod, a fixed bolt is arranged on the front surface of the limiting rod, and the fixed bolt penetrates through the hook head, the limiting rod and the torsional spring and is threadedly connected with a nut.
[0007] Preferably, the surface of the hook head is coated with a protective coating, the corners of the bottom of the protective sleeve are rounded, and the connecting piece is adapted to the slide rod.
[0008] Preferably, the front surface of the fixing block is provided with a circular hole, the circular hole is adapted to the slide rod, and the sliding groove is adapted to the limiting ring.
[0009] Preferably, the surface of the pulling block is provided with anti-skid lines, and the left side of the limiting rod is attached to the left side of the inner cavity of the hook head.
[0010] Preferably, the left side of the torsional spring is attached to the right side of the limiting rod, and the right side of the torsional spring is attached to the right side of the inner cavity of the hook head.
[0011] The utility model discloses the beneficial effect is:
[0012] 1. The utility model discloses a protective structure for idle hook, which comprises a slide rod, a sliding groove, a fixing block, a slide rail, a limiting ring, a hook head, a connecting piece, a protective sleeve and a pulling block.
[0013] 2. The utility model discloses the cooperation of limiting rod, torsional spring and fixed bolt is used, and the limiting rod is pressed, and the left side of torsional spring is extruded and is close to the right side of hook head inner cavity, and then the suspension is set on the surface of hook head, and the limiting rod is loosened, and torsional spring will be relaxed, and the left side of torsional spring pushes the limiting rod and the left side of hook head inner cavity to be attached, and the limiting rod is limited at the opening of hook head at this time, avoids the suspension from the surface of hook head, guarantees the firmness of the suspension on the surface of hook head. BRIEF DESCRIPTION OF DRAWINGS
[0014] Among them:
[0015] Figure 1 It is the three-dimensional schematic view of one embodiment of the utility model;
[0016] Figure 2 It is the three-dimensional split schematic view of one embodiment of the utility model;
[0017] Figure 3 It is one embodiment of the utility model Figure 2 The local enlarged view of point A in one embodiment of the utility model;
[0018] Figure 4 It is one embodiment of the utility model Figure 2 The local enlarged view of point B in one embodiment of the utility model.
[0019] In the drawings, the component list represented by each sign is as follows:
[0020] 1, hook body, 2, hanging wheel set, 3, rotating block, 4, hook head, 5, protective sleeve, 6, connecting piece, 7, fixed block, 8, sliding frame, 9, sliding groove, 10, sliding rod, 11, limiting ring, 12, spring, 13, pull block, 14, limiting rod, 15, torsional spring, 16, fixed bolt. DETAILED DESCRIPTION
[0021] Hereinafter, an embodiment of the crane hook of the present application will be described with reference to the accompanying drawings. Embodiment 1
[0022] Figures 1-4 A crane hook of an embodiment of the present application is shown, which comprises a hook body 1, the inner cavity of the hook body 1 is rotationally connected with a hanging wheel set 2, the bottom of the hook body 1 is rotationally connected with a rotating block 3, the bottom of the rotating block 3 is rotationally connected with a hook head 4, the inner cavity of the hook head 4 is provided with a limiting rod 14, the right side of the limiting rod 14 is provided with a torsional spring 15, the front of the limiting rod 14 is provided with a fixed bolt 16, the fixed bolt 16 passes through the hook head 4, the limiting rod 14 and the torsional spring 15 and is threadedly connected with a nut, through the cooperation of the limiting rod 14, the torsional spring 15 and the fixed bolt 16, the limiting rod 14 is pressed, the left side of the torsional spring 15 is extruded to be close to the right side of the inner cavity of the hook head 4, then the hanging object is sleeved on the surface of the hook head 4, the limiting rod 14 is loosened, the torsional spring 15 is relaxed, the left side of the torsional spring 15 pushes the limiting rod 14 to be attached to the left side of the inner cavity of the hook head 4, at this time, the limiting rod 14 is limited at the opening of the hook head 4, avoiding the hanging object from being separated from the surface of the hook head 4, ensuring the firmness of the hanging object on the surface of the hook head 4, the surface of the pull block 13 is provided with anti-skid lines, the left side of the limiting rod 14 is attached to the left side of the inner cavity of the hook head 4, the left side of the torsional spring 15 is attached to the right side of the limiting rod 14, the right side of the torsional spring 15 is attached to the right side of the inner cavity of the hook head 4, the surface of the hook head 4 is sleeved with a protective sleeve 5, the top of the protective sleeve 5 is fixedly connected with two symmetrical connecting pieces 6, the two sides of the hook body 1 are fixedly connected with fixed blocks 7, the two sides of the hook body 1 are fixedly connected with sliding frames 8, the connecting pieces 6 are located between the fixed blocks 7 and the sliding frames 8, the front of the sliding frame 8 is provided with a sliding groove 9, the inner cavity of the sliding groove 9 is slidingly connected with a sliding rod 10, the sliding rod 10 passes through the connecting pieces 6 and enters the inner cavity of the fixed block 7, the surface of the sliding rod 10 is fixedly connected with a limiting ring 11, the surface of the sliding rod 10 is sleeved with a spring 12, one end of the spring 12 is fixedly connected with the limiting ring 11, the other end of the spring 12 is fixedly connected with the inner wall of the sliding groove 9, the end of the sliding rod 10 away from the fixed block 7 extends to the outside of the sliding groove 9 and is fixedly connected with a pull block 13. Embodiment 2
[0023] Figures 1-4The crane hook shown in an embodiment of the utility model, it includes hook body 1, the inner chamber rotationally connected with the hook wheel group 2 of hook body 1, the bottom rotationally connected with the rotating block 3 of hook body 1, the bottom rotationally connected with the hook head 4 of rotating block 3, the surface of hook head 4 is coated with protective coating, the corner of the bottom of protective sleeve 5 is round, connecting piece 6 is adapted with slide rod 10, the surface of hook head 4 is equipped with protective sleeve 5, the top of protective sleeve 5 is fixedly connected with two symmetrical connecting pieces 6, the both sides of hook body 1 are fixedly connected with fixed block 7, the front of fixed block 7 is equipped with round hole, and the round hole is adapted with slide rod 10, and the both sides of hook body 1 are fixedly connected with sliding frame 8, and connecting piece 6 is located between fixed block 7 and sliding frame 8, and the front of sliding frame 8 is equipped with sliding groove 9, and the inner chamber of sliding groove 9 is slidably connected with slide rod 10, and slide rod 10 passes through connecting piece 6 and enters the inner chamber of fixed block 7, and the surface of slide rod 10 is fixedly connected with limiting ring 11, and the surface of slide rod 10 is equipped with spring 12, and one end of spring 12 is fixedly connected with limiting ring 11, and the other end of spring 12 is fixedly connected with the inner wall of sliding groove 9, and the end of slide rod 10 away from fixed block 7 extends to the outside of sliding groove 9 and is fixedly connected with pull block 13.
[0024] Working principle: when the utility model is used, the user pulls pull block 13, so that slide rod 10 enters the inner chamber of sliding groove 9, at this time, limiting ring 11 will extrude spring 12, so that spring 12 shrinks, then protective sleeve 5 is equipped on the surface of hook head 4, so that connecting piece 6 reaches between fixed block 7 and sliding frame 8, pull block 13 is loosened, so that spring 12 relaxes, so that spring 12 pushes slide rod 10 through limiting ring 11 and enters the inner chamber of fixed block 7, so that protective sleeve 5 is limited on the surface of hook head 4, avoids idle hook directly exposed in air and rust, prolongs the service life of hook, through the cooperation of limiting rod 14, torsional spring 15 and fixed bolt 16, limiting rod 14 is pressed, so that the left side of torsional spring 15 is extruded and close to the right side of the inner chamber of hook head 4, then the suspension is equipped on the surface of hook head 4, limiting rod 14 is loosened, and torsional spring 15 relaxes, so that the left side of torsional spring 15 pushes limiting rod 14 and the left side of the inner chamber of hook head 4 are attached, at this time, limiting rod 14 is limited at the opening of hook head 4, avoids the suspension from the surface of hook head 4, and guarantees the firmness of the suspension on the surface of hook head 4.
[0025] In conclusion: the crane hook, through the pulling of pull block 13, makes slide rod 10 enter the inner chamber of sliding groove 9, so that spring 12 shrinks, and protective sleeve 5 is equipped on the surface of hook head 4, so that connecting piece 6 reaches between fixed block 7 and sliding frame 8, pull block 13 is loosened, so that spring 12 relaxes, so that slide rod 10 enters the inner chamber of fixed block 7 through connecting piece 6, can reach the purpose that idle hook can be protected by protective structure, avoids idle hook directly exposed in air and rust, prolongs the service life of hook.
Claims
1. A crane hook, characterized in that The utility model provides hook body (1), the inner chamber of hook body (1) rotationally connected has the hook wheel group (2), the bottom rotationally connected of hook body (1) has the rotating block (3), the bottom rotationally connected of rotating block (3) has the hook head (4), the surface of hook head (4) is equipped with the protective sleeve (5), the top fixedly connected of protective sleeve (5) has two symmetries connecting piece (6), the both sides of hook body (1) are all fixedly connected with fixed block (7), the both sides of hook body (1) are all fixedly connected with slide (8), connecting piece (6) is located between fixed block (7) and slide (8), the front of slide (8) is equipped with the sliding slot (9), the inner chamber of sliding slot (9) is slidably connected with slide rod (10), slide rod (10) passes through connecting piece (6) and enters the inner chamber of fixed block (7), the surface fixedly connected of slide rod (10) has the limit ring (11), the surface of slide rod (10) is equipped with spring (12), and one end of spring (12) is fixedly connected with limit ring (11), the other end of spring (12) is fixedly connected with the inner wall of sliding slot (9), and the one end away from fixed block (7) of slide rod (10) extends to the outside of sliding slot (9) and is fixedly connected with pull block (13).
2. A crane hook according to claim 1, characterised in that The inner chamber of hook head (4) is provided with a limiting rod (14), the right side of the limiting rod (14) is provided with a torsion spring (15), the front surface of the limiting rod (14) is provided with a fixed bolt (16), the fixed bolt (16) passes through the hook head (4), the limiting rod (14) and the torsion spring (15) and is threadedly connected with a nut.
3. A crane hook according to claim 2, characterised in that The surface of the hook head (4) is coated with a protective coating, the corners of the bottom of the protective sleeve (5) are rounded, the connecting piece (6) is adapted to the slide rod (10).
4. A crane hook according to claim 3, characterised in that The front surface of the fixed block (7) is provided with a circular hole, the circular hole is adapted to the slide rod (10), and the sliding slot (9) is adapted to the limit ring (11).
5. A crane hook according to claim 4, characterised in that The surface of the pull block (13) is provided with anti-skid lines, the left side of the limiting rod (14) is fitted with the left side of the inner chamber of the hook head (4).
6. A crane hook according to claim 5, characterised in that The left side of the torsion spring (15) is fitted with the right side of the limiting rod (14), and the right side of the torsion spring (15) is fitted with the right side of the inner chamber of the hook head (4).