Crane hook limiting structure capable of avoiding contact abrasion

Abstract

The utility model discloses a crane hook limit structure capable of avoiding contact abrasion, which comprises a support plate and a support frame fixedly connected to the upper end of the support plate and used for bearing, a winch is mounted at the inner end of the support frame, a steel wire rope is wound on the winch, and the lower end of the steel wire rope is fixedly connected with a connecting plate. The bottom end of the connecting plate is fixedly connected with a lifting hook body; an adjusting assembly playing a sliding role is arranged on the rear side of the supporting frame; a limiting assembly is arranged on the right side of the connecting plate, a support is integrally connected to the upper left end of the connecting plate, a connecting block is installed at the upper right end of the support, and the position of the connecting block corresponds to the position of the connecting box up and down; the connecting box is connected to the lower right end of the supporting plate in an embedded mode. According to the crane hook limiting structure capable of avoiding contact abrasion, contact abrasion is avoided, the position of the hook can be conveniently and stably adjusted, and meanwhile articles are prevented from falling off from the hook.

Description

TECHNICAL FIELD

[0001] The utility model relates to crane hook limiting structure technical field, concretely is a crane hook limiting structure of avoiding contact abrasion. BACKGROUND

[0002] The crane is used in very wide range, including the building industry, and the hook limiting structure is indispensable to cause the component in the crane, and the crane hook limiting structure of current market has many styles, can satisfy different demands.

[0003] The utility model discloses a crane hook limiting device, including motor one, protection shell two, steel wire rope and hook, the inside of protection shell two is provided with steel wire rope, the end of steel wire rope is fixed in fixed groove, the steel wire rope and fixed groove between hang pulley groove, the inside installation of pulley cover has dynamic pulley, the upper welding of pulley cover has the baffle, the baffle upper surface corresponds the installation of close range sensor below protection shell two, the lower installation of pulley cover has hook, the one side installation of protection shell two has motor one, the other side installation of protection shell two has protection shell one. Advantage lies in: the utility model discloses a crane hook limiting device adopts the combination of close range sensor and baffle, avoids the contact between parts and produces abrasion, through the infrared ray in close range sensor and baffle touch, greatly improves the reaction time and sensitivity between parts.

[0004] Combining the prior art and the actual production and processing, the crane hook limiting structure still has some problems, such as: the close range sensor is cut off, but the close range sensor will be damaged, and the position is moved by the gear, the tooth column and other parts, but the movement is unstable, and the goods on the hook will fall off, causing damage to the goods, therefore, we propose a crane hook limiting structure to avoid contact abrasion, so as to solve the problems in the above. Utility model content

[0005] The utility model discloses a crane hook limiting structure to avoid contact abrasion, to solve the crane hook limiting structure in the above background art, easy to cause abrasion in contact, and inconvenient to adjust the position of the hook stably, and the goods are easy to fall off from the hook.

[0006] To achieve the above object, the utility model provides the following technical scheme: a crane hook limiting structure avoiding contact abrasion, including support plate and fixedly connected on its upper end support frame for bearing, the inner end of this support frame is installed with winch, and the winch is wound with wire rope, and the lower end of wire rope is fixedly connected with connecting plate, and the bottom of connecting plate is fixedly connected with hook body;

[0007] Further comprising:

[0008] The rear side of the support frame is provided with an adjusting assembly for sliding;

[0009] The right side of the connecting plate is provided with a limiting assembly, and the upper left end of the connecting plate is integrally connected with a support, and the upper right end of the support is provided with a connecting block, wherein the position of the connecting block corresponds to the position of the connecting box.

[0010] The connecting box is embeddedly connected to the lower right end of the support plate, and the lower left end of the support plate is provided with a buzzer.

[0011] Preferably, the adjusting assembly comprises an adjusting plate, a threaded rod, a motor, a frame and a guide rod, and the adjusting plate is integrally connected to the middle position of the rear end of the support frame, and the upper end of the adjusting plate is threadedly connected with the threaded rod, the threaded rod is rotatably connected to the inner upper end of the frame, the right end of the threaded rod is provided with the motor, and the inner lower end of the frame is fixedly connected with the guide rod.

[0012] Preferably, the guide rod penetrates the inner lower end of the adjusting plate, and the support plate is in a sliding structure on the front side of the frame through the threaded rod and the guide rod.

[0013] Preferably, the limiting assembly comprises a limiting rod, a mounting plate and an adjusting rod, the limiting rod penetrates the inner right middle end of the connecting plate, the upper end of the limiting rod is fixedly connected to the lower left end of the mounting plate, the right end of the mounting plate is threadedly connected with the adjusting rod, and the adjusting rod is rotatably connected to the upper right end of the connecting plate.

[0014] Preferably, the outer surface of the adjusting rod is in a threaded structure, and the limiting rod is in a lifting structure on the upper side of the hook body through the mounting plate and the adjusting rod.

[0015] Preferably, the bottom end of the connecting box is nested with a switch trigger, the upper end of the switch trigger is fixedly connected with springs in left-right symmetry, and the upper end of the spring is fixedly connected to the lower right end of the support plate.

[0016] Preferably, the position of the switch trigger corresponds to the position of the limiting switch in up-down direction, and the limiting switch is installed on the lower right end of the support plate.

[0017] Preferably, the switch trigger and the limiting switch constitute a telescopic structure through the connecting block and the connecting box.

[0018] Compared with the prior art, the crane hook limiting structure for avoiding contact abrasion has the advantages that contact abrasion is avoided, the position of the hook is conveniently and stably adjusted, and the articles are prevented from falling off the hook.

[0019] 1. The structure design that the switch trigger is connected with the limiting switch through the connecting block and the connecting box makes the steel wire rope drive the hook body to rise;

[0020] When the connecting block rises, the switch trigger is driven to rise until the upper end of the switch trigger contacts the lower end of the limiting switch, thereby avoiding contact abrasion;

[0021] 2. The structure design that the support plate is arranged on the front side of the frame through the threaded rod and the guide rod makes the threaded rod rotate to drive the support frame to slide left and right through the guide rod, thereby adjusting the position of the hook body and conveniently and stably adjusting the position of the hook;

[0022] 3. The structure design that the limiting rod is arranged on the upper side of the hook body through the mounting plate and the adjusting rod makes the adjusting rod rotate to drive the limiting rod to descend through the mounting plate, so that the lower end of the limiting rod contacts the upper right end of the hook body, thereby preventing the articles from falling off the hook. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view of the sectional structure of the utility model;

[0024] Figure 2 It is a right side view of the sectional structure of the utility model;

[0025] Figure 3 It is a sectional structure of the utility model Figure 1 It is an enlarged structure diagram of A in the utility model;

[0026] Figure 4 It is a connecting structure diagram of the limiting rod and the connecting plate of the utility model;

[0027] Figure 5 It is a connecting structure diagram of the threaded rod and the adjusting plate of the utility model;

[0028] Figure 6 It is a structure diagram of the connecting block in the rising state of the utility model.

[0029] In the figure: 1, support plate; 2, support frame; 3, winch; 4, steel wire rope; 5, connecting plate; 6, hook body; 7, adjusting assembly; 701, adjusting plate; 702, threaded rod; 703, motor; 704, frame; 705, guide rod; 8, limiting assembly; 801, limiting rod; 802, mounting plate; 803, adjusting rod; 9, support; 10, buzzer; 11, connecting block; 12, connecting box; 13, switch trigger; 14, spring; 15, limit switch. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0031] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: crane hook limiting structure to avoid contact abrasion, including support plate 1, support frame 2, winch 3, steel wire rope 4, connecting plate 5, hook body 6, adjusting assembly 7, limiting assembly 8, support 9, buzzer 10, connecting block 11, connecting box 12, switch trigger 13, spring 14 and limit switch 15.

[0032] Embodiment: the existing hook on hanging article can appear the situation of falling, leading to article damage, therefore this embodiment is through following technical scheme, such as Figure 1 And Figure 4 Since limiting rod 801 is connected in the right middle end inside connecting plate 5 in a penetrating manner, the outer surface of adjusting rod 803 is screw thread structure, limiting rod 801 is in lifting structure on the upper side of hook body 6 by mounting plate 802 and adjusting rod 803;

[0033] Therefore, the article is hung on hook body 6, at this time, the lower end of limiting rod 801 is in the inside of connecting plate 5, rotating adjusting rod 803 drives mounting plate 802 to descend by limiting limiting rod 801 in connecting plate 5, when mounting plate 802 descends, limiting rod 801 is moved downwards;

[0034] Until the lower end of limiting rod 801 abuts against the right upper end of hook body 6, the opening at the right end of hook body 6 is blocked by limiting rod 801, so as to prevent the article from falling off hook body 6;

[0035] The existing position is moved by gear, toothed column and other parts, but it is unstable to move, therefore this embodiment is through following technical scheme, such as Figure 1 、 Figure 2 AndFigure 5 Since the upper end of the adjusting plate 701 is threadedly connected with the threaded rod 702, the guide rod 705 is connected inside the lower end of the adjusting plate 701, and the support plate 1 is in sliding structure on the front side of the frame 704 through the threaded rod 702 and the guide rod 705;

[0036] Therefore, when the winch 3 works on the support frame 2, the steel wire rope 4 is wound on the winch 3, and the hook body 6 is lifted by the steel wire rope 4. When the position of the support plate 1 needs to be adjusted, the motor 703 is operated to drive the threaded rod 702 to rotate on the inner upper end of the frame 704;

[0037] The lower end of the adjusting plate 701 slides left and right on the guide rod 705, and the upper end of the adjusting plate 701 slides left and right on the threaded rod 702. The threaded rod 702, the guide rod 705, and the adjusting plate 701 drive the support plate 1 to move left and right to adjust the position, so as to conveniently and stably adjust the position of the hook body 6;

[0038] The existing circuit is cut off by a proximity sensor, but the proximity sensor may be damaged. Therefore, the embodiment is realized by the following technical solutions, such as Figure 1 、 Figure 3 and Figure 6 Since the position of the connecting block 11 corresponds to the position of the connecting box 12, and the position of the switch trigger 13 corresponds to the position of the limit switch 15, the switch trigger 13 and the limit switch 15 constitute a telescopic structure through the connecting block 11 and the connecting box 12;

[0039] Therefore, when the steel wire rope 4 drives the hook body 6 to rise, the connecting block 11 contacts the lower end of the switch trigger 13, drives the switch trigger 13 to rise in the connecting box 12, and drives the left and right symmetrical springs 14 to contract until the upper end of the switch trigger 13 contacts the lower end of the limit switch 15;

[0040] The limit switch 15 can make the buzzer 10 emit a sound, and at the same time, the winch 3 can be stopped from rotating, so that the hook body 6 does not continue to rise. When the connecting block 11 is away from the switch trigger 13, the left and right symmetrical springs 14 drive the switch trigger 13 to descend, and the switch trigger 13 is away from the limit switch 15. The upper end of the switch trigger 13 is made of rubber material and does not damage the limit switch 15, thereby avoiding contact wear. The above-mentioned electrical elements are all prior art, and will not be described in detail here.

[0041] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0042] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A crane hook limiting structure that avoids contact wear, comprising a support plate (1) and a support frame (2) fixedly connected to the upper end thereof for bearing, an inner end of the support frame (2) is provided with a winch (3), a steel wire rope (4) is wound on the winch (3), a lower end of the steel wire rope (4) is fixedly connected with a connecting plate (5), and a bottom end of the connecting plate (5) is fixedly connected with a hook body (6); characterized in that Further comprising: a rear side of the support frame (2) is provided with an adjusting assembly (7) that plays a sliding role; a right side of the connecting plate (5) is provided with a limiting assembly (8), an upper left end of the connecting plate (5) is integrally connected with a support (9), a right upper end of the support (9) is provided with a connecting block (11), and a position of the connecting block (11) corresponds to a position of a connecting box (12) in a top-bottom direction; the connecting box (12) is inlaidly connected to a right lower end of the support plate (1), and a lower left end of the support plate (1) is provided with a buzzer (10).

2. A crane hook stop structure that avoids contact wear according to claim 1, characterized in that: the adjusting assembly (7) comprises an adjusting plate (701), a threaded rod (702), a motor (703), a frame (704) and a guide rod (705), the adjusting plate (701) is integrally connected to a middle position of a rear end of the support frame (2), an upper end of the adjusting plate (701) is threadedly connected with the threaded rod (702), the threaded rod (702) is rotatably connected to an inner upper end of the frame (704), a right end of the threaded rod (702) is provided with the motor (703), and an inner lower end of the frame (704) is fixedly connected with the guide rod (705).

3. A crane hook stop structure that avoids contact wear according to claim 2, characterized in that: the guide rod (705) penetrates through an inner lower end of the adjusting plate (701), and the support plate (1) is in a sliding structure on a front side of the frame (704) through the threaded rod (702) and the guide rod (705).

4. A crane hook stop structure that avoids contact wear according to claim 1, characterized in that: the limiting assembly (8) comprises a limiting rod (801), a mounting plate (802) and an adjusting rod (803), the limiting rod (801) penetrates through an inner middle right end of the connecting plate (5), an upper end of the limiting rod (801) is fixedly connected to a lower left end of the mounting plate (802), a right end of the mounting plate (802) is threadedly connected with the adjusting rod (803), and the adjusting rod (803) is rotatably connected to an upper right end of the connecting plate (5).

5. A crane hook stop structure that avoids contact wear according to claim 4, characterized in that: an outer surface of the adjusting rod (803) is in a threaded structure, and the limiting rod (801) is in a lifting structure on an upper side of the hook body (6) through the mounting plate (802) and the adjusting rod (803).

6. A crane hook stop structure that avoids contact wear as set forth in claim 1, characterized in that: a bottom end of the connecting box (12) is nestedly connected with a switch trigger (13), upper ends of the switch trigger (13) are fixedly connected with springs (14) in a left-right symmetry manner, and upper ends of the springs (14) are fixedly connected to a lower right end of the support plate (1).

7. A crane hook stop structure that avoids contact wear according to claim 6, characterized in that: a position of the switch trigger (13) corresponds to a position of a limiting switch (15) in a top-bottom direction, and the limiting switch (15) is mounted to the lower right end of the support plate (1).

8. A crane hook stop structure to avoid contact wear according to claim 7, characterized in that: the switch trigger (13) and the limiting switch (15) constitute an extension structure through the connecting block (11) and the connecting box (12).

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