Limiting device for luffing mechanism of crane

Abstract

The utility model provides a limiting device for a luffing mechanism of a crane, and relates to the technical field of limiting devices for luffing mechanisms. Comprising a bottom frame, a top frame is arranged at the top of the outer surface of the bottom frame, a connecting shaft is rotatably arranged on the inner wall of the bottom frame, a rectangular sealing ring block is fixedly connected to the bottom of the top frame, a limiting stopper is fixedly connected to the inner wall of the bottom frame, a rotating ring is rotatably arranged on the outer surface of the limiting stopper, and a switch body is arranged on one side of the limiting stopper. By arranging the convenient operation structure, under the action of the rectangular clamping block, the rectangular clamping frame and other components, auxiliary disassembly and assembly can be carried out on the operation auxiliary block and other components, then auxiliary operation can be conveniently carried out on the operation block, manual operation can be carried out, cooperation with the help of a screwdriver and other professional tools is not needed, and the operation efficiency is improved. The operation convenience in the outdoor use process is improved, the situation that the screwdriver cannot be used due to the fact that the screwdriver is not carried in the use process is avoided, and overall control is more convenient and practical.

Description

TECHNICAL FIELD

[0001] The utility model relates to amplitude mechanism limiting device technical field, especially, relate to a crane amplitude mechanism limiting device. BACKGROUND

[0002] The crane amplitude mechanism refers to the amplitude of the mechanical arm is changed during the process of lifting, and then the position of the heavy object can be moved, and the safety is improved by cooperating with the limiter during the use of the crane amplitude mechanism.

[0003] In actual work, the structure and function of the amplitude mechanism limiting device of the prior art are relatively perfect, and the daily use requirements can be basically met, but the following problems still exist:

[0004] The limiter is limited by calculating whether the rotation number of the driving shaft is located at the critical value during use, and the limiter needs to be operated during actual use, and then the rotating ring is controlled to rotate and be located at the initial position, but the operation button at the top of the rotating ring is embedded and small, and needs to be twisted by means of a screwdriver and other tools, which is very inconvenient.

[0005] Therefore, the utility model provides a crane amplitude mechanism limiting device. UTILITY MODEL CONTENTS

[0006] The utility model aims at solving the shortcomings in the prior art, and provides a crane amplitude mechanism limiting device.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme: a crane amplitude mechanism limiting device, including the bottom frame, the top of the outer surface of the bottom frame is provided with the top frame, the inner wall of the bottom frame is rotatably provided with the connecting shaft, the bottom of the top frame is fixedly connected with the rectangular sealing ring block, the inner wall of the bottom frame is fixedly connected with the limiter, the outer surface of the limiter is rotatably provided with the rotating ring, one side of the limiter is provided with the switch body, and the top of the limiter is provided with the operation block; The top of the operation block is provided with a convenient operation structure, and the convenient operation structure comprises a rectangular clamping block, the outer surface of the rectangular clamping block is clamped with a rectangular clamping frame, and the top of the rectangular clamping frame is fixedly connected with an operation auxiliary block; The convenient dismounting structure is arranged between the bottom frame and the top frame, the convenient dismounting structure comprises a first jack, the inner wall of the first jack is inserted with a threaded insert rod, and the outer surface of the threaded insert rod is threadedly connected with a threaded clamping cylinder.

[0008] As a preferred implementation, the inner wall of the rectangular card block is provided with a first screw hole, the inner wall of the rectangular card frame is provided with a second screw hole, the inner wall of the first screw hole and the second screw hole is threadedly connected with a threaded card rod, the outer surface of the operation auxiliary block is fixedly connected with a plurality of first rectangular protrusions, and the plurality of first rectangular protrusions are equidistantly arranged along the circumferential direction of the operation auxiliary block.

[0009] The technical effect of the above further scheme is that under the cooperation of the threaded card rod, the first screw hole and the second screw hole, the rectangular card block and the rectangular card frame can be fixed, and then the operation auxiliary block can be disassembled and fixed, so that the operation area and the operation length of the operation block can be extended, and then the rotation is facilitated, and then the tool such as a screwdriver is not needed to be used in cooperation, so that the operation convenience is improved.

[0010] As a preferred implementation, the outer surface of the operation auxiliary block is fixedly connected with a rectangular auxiliary block at the top, and the top of the rectangular auxiliary block is provided with an operation hole.

[0011] The technical effect of the above further scheme is that under the cooperation of the rectangular auxiliary block and the operation hole, the operation block can be rotated by using external tools after rusting.

[0012] As a preferred implementation, the inner wall of the bottom frame is provided with a threaded clamping hole, the inner wall of the threaded clamping hole is threadedly connected with a threaded clamping rod, the outer surface of the threaded clamping rod is fixedly connected with a circular connecting block at the top, the outer surface of the circular connecting block is fixedly connected with a threaded plug rod at the top, the outer surface of the threaded clamping cylinder is fixedly connected with a circular block at the top, and the outer surface of the circular block is equidistantly fixedly connected with a plurality of second rectangular protrusions along the circumferential direction thereof.

[0013] The technical effect of the above further scheme is that under the cooperation of the threaded clamping hole and the threaded clamping rod, the circular connecting block and the threaded plug rod and other components can be fixed with the bottom frame, and then the first plug hole on the top frame can be limited, and then the threaded clamping cylinder can be disassembled and fixed, and the threaded clamping cylinder can be operated by means of the circular block and other components, so that the overall operation is more convenient.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that,

[0015] By setting convenient operation structure, under the action of rectangular card block and rectangular card frame and other components, operation auxiliary block and other components can be assisted disassembling, and then the operation block can be conveniently assisted, so that manual operation can be performed without the help of screwdriver and other professional tools, so that the operation convenience in outdoor use is improved, and the situation that screwdriver cannot be used due to not being carried is avoided, so that the whole control is more convenient and practical, and by setting convenient dismounting structure, under the action of threaded clamping rod and threaded clamping hole, the threaded plug rod can be fixed, and then under the action of first plug hole and threaded clamping cylinder, the circular block is matched, so that the whole dismounting is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A structure schematic view of a crane luffing mechanism limiting device is provided in the utility model.

[0017] Figure 2 A structure schematic view of a bottom frame of a crane luffing mechanism limiting device is provided in the utility model.

[0018] Figure 3 A crane luffing mechanism limiting device is provided in the utility model. Figure 2 An enlarged view of A in the middle.

[0019] Figure 4 A structure schematic view of a top frame of a crane luffing mechanism limiting device is provided in the utility model.

[0020] Figure 5 A structure schematic view of a convenient dismounting structure of a crane luffing mechanism limiting device is provided in the utility model.

[0021] Legend:

[0022] 1, bottom frame; 2, top frame; 3, sealing ring block; 4, connecting shaft; 5, limiter; 6, rotating ring; 7, switch body;

[0023] 8, convenient operation structure; 81, rectangular card block; 82, rectangular card frame; 83, first screw hole; 84, second screw hole; 85, threaded clamping rod; 86, operation auxiliary block; 87, first rectangular protruding block; 88, rectangular auxiliary block; 89, operation hole;

[0024] 9, convenient dismounting structure; 91, first plug hole; 92, threaded clamping hole; 93, threaded clamping rod; 94, circular connecting block; 95, threaded plug rod; 96, threaded clamping cylinder; 97, circular block; 98, second rectangular protruding block;

[0025] 10, operation block. DETAILED DESCRIPTION

[0026] Clearly and completely describe the technical scheme in the embodiments of the utility model with the drawings in the embodiments of the utility model below, apparently, the described embodiments only are a part of embodiments of the utility model, and not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0027] As Figures 1-5 Indicated, this embodiment provides a technical scheme: a crane luffing mechanism limiting device, including the bottom frame 1, the outer surface top of bottom frame 1 is provided with top frame 2, the inner wall of bottom frame 1 is rotatably provided with connecting shaft 4, the bottom of top frame 2 is fixedly connected with rectangular sealing ring block 3, the inner wall of bottom frame 1 is fixedly connected with limit stop 5, the outer surface of limit stop 5 is rotatably provided with rotating ring 6, one side of limit stop 5 is provided with switch body 7, the top of limit stop 5 is provided with operating block 10;Limit stop 5, rotating ring 6, switch body 7 and operating block 10 are all the component parts of limiting device in prior art, are mature structure, the top of operating block 10 is provided with convenient operation structure 8, convenient operation structure 8 includes rectangular clamping block 81, rectangular clamping block 81 is connected with rectangular clamping frame 82, the top of rectangular clamping frame 82 is fixedly connected with auxiliary operating block 86;Convenient dismounting structure 9 is arranged between bottom frame 1 and top frame 2, convenient dismounting structure 9 includes first jack 91, the inner wall of first jack 91 is inserted with threaded insert rod 95, the outer surface of threaded insert rod 95 is threadedly connected with threaded clamping cylinder 96, by setting convenient operation structure 8, can be under the action of rectangular clamping block 81 and rectangular clamping frame 82 etc. component, auxiliary dismounting can be carried out to auxiliary operating block 86 etc. component, in turn, auxiliary operation can be conveniently carried out to operating block 10, so that manual operation can be carried out, without the aid of screwdriver etc. professional tool cooperation, so that the operation convenience in outdoor use process is improved, avoids the situation that cannot be used when not carrying screwdriver during use, makes the whole control more convenient and practical, by setting convenient dismounting structure 9, under the action of threaded clamping rod 93 and threaded clamping hole 92, threaded insert rod 95 can be fixed, in turn, under the action of first jack 91 and threaded clamping cylinder 96, cooperate circular block 97, so that the whole dismounting is more convenient.

[0028] More further, as Figure 3As shown: the inner wall of the rectangular clamping block 81 is provided with a first screw hole 83, the inner wall of the rectangular clamping frame 82 is provided with a second screw hole 84, the inner wall of the first screw hole 83 and the second screw hole 84 is threadedly connected with a threaded clamping rod 85, the outer surface of the operation auxiliary block 86 is fixedly connected with a plurality of first rectangular protrusions 87, a plurality of first rectangular protrusions 87 are equidistantly arranged along the circumferential direction of the operation auxiliary block 86, under the action of the threaded clamping rod 85 cooperating with the first screw hole 83 and the second screw hole 84, the rectangular clamping block 81 and the rectangular clamping frame 82 can be fixed, and then the operation auxiliary block 86 can be disassembled and fixed, and then the operation area and the operation length of the operation block 10 can be extended, and then the rotation is facilitated, and then the tool such as screwdriver is not needed to be used in cooperation, so that the operation convenience is improved.

[0029] In the above scheme, there is also the problem that the operation block 10 is rusted, and manual rotation is laborious. Figure 3 As shown: in the present scheme, the outer surface of the operation auxiliary block 86 is fixedly connected with a rectangular auxiliary block 88 at the top, and the top of the rectangular auxiliary block 88 is provided with an operation hole 89, under the action of the rectangular auxiliary block 88 and the operation hole 89, after the operation block 10 is rusted, it can be operated by external tools.

[0030] In the above scheme, there is also the problem that the bottom frame 1 and the top frame 2 need to be disassembled and used, and the screwdriver and other tools need to be used during disassembly, which is very inconvenient. Figures 2-5 As shown, the inner wall of the bottom frame 1 is provided with a threaded clamping hole 92, the inner wall of the threaded clamping hole 92 is threadedly connected with a threaded clamping rod 93, the outer surface of the threaded clamping rod 93 is fixedly connected with a circular connecting block 94 at the top, the outer surface of the circular connecting block 94 is fixedly connected with a threaded plug rod 95 at the top, the outer surface of the threaded clamping cylinder 96 is fixedly connected with a circular block 97 at the top, the outer surface of the circular block 97 is equidistantly fixedly connected with a plurality of second rectangular protrusions 98 along the circumferential direction thereof, under the action of the threaded clamping hole 92 and the threaded clamping rod 93, the circular connecting block 94 and the threaded plug rod 95 and other components can be fixed with the bottom frame 1, and then the first plug hole 91 on the top frame 2 can be limited, and then the threaded clamping cylinder 96 can be disassembled and fixed, and the threaded clamping cylinder 96 can be operated by means of the circular block 97 and other components, so that the whole operation is more convenient.

[0031] Working principle:

[0032] As shown: Figures 1-5 As shown:

[0033] In use: rotate the circular block 97, so that the circular block 97 drives the threaded clamping cylinder 96 to rotate, and then the threaded clamping cylinder 96 can be separated from the threaded plug rod 95, at this time the top frame 2 can be separated from the threaded plug rod 95, and then the bottom frame 1 and the top frame 2 are separated;

[0034] At this time, the operation auxiliary block 86 is rotated, so that the operation auxiliary block 86 can drive the rectangular block 81, the rectangular frame 82 and other components to rotate, and then the rotating ring 6 can be rotated, and then it can be adjusted to the initial position;

[0035] When the operation auxiliary block 86 needs to be replaced, the threaded rod 85 is separated from the first screw hole 83 and the second screw hole 84, and then the rectangular block 81 and the rectangular frame 82 are separated, and then the operation auxiliary block 86 can be disassembled;

[0036] When the threaded plug rod 95 needs to be disassembled, the threaded plug rod 95 is rotated at this time, which drives the threaded clamping rod 93 to rotate, and then the threaded clamping rod 93 is separated from the threaded clamping hole 92, and the disassembly is completed.

[0037] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification of the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical scheme of the present application.

Claims

1. A crane luffing mechanism limiting device, comprising a bottom frame (1), characterized in that, the outer top of the bottom frame (1) is provided with a top frame (2), the inner wall of the bottom frame (1) is rotatably provided with a connecting shaft (4), the bottom of the top frame (2) is fixedly connected with a rectangular sealing ring block (3), the inner wall of the bottom frame (1) is fixedly connected with a limiter (5), the outer surface of the limiter (5) is rotatably provided with a rotating ring (6), one side of the limiter (5) is provided with a switch body (7), and the top of the limiter (5) is provided with an operation block (10); the top of the operation block (10) is provided with a convenient operation structure (8), the convenient operation structure (8) comprises a rectangular clamping block (81), the outer surface of the rectangular clamping block (81) is clamped with a rectangular clamping frame (82), and the top of the rectangular clamping frame (82) is fixedly connected with an operation auxiliary block (86); a convenient disassembly structure (9) is arranged between the bottom frame (1) and the top frame (2), the convenient disassembly structure (9) comprises a first jack (91), the inner wall of the first jack (91) is inserted with a threaded plug rod (95), and the outer surface of the threaded plug rod (95) is threadedly connected with a threaded clamping cylinder (96).

2. Crane luffing mechanism limiter according to claim 1, characterized in that First screw holes (83) are formed in the inner wall of the rectangular clamping block (81), second screw holes (84) are formed in the inner wall of the rectangular clamping frame (82), and the inner walls of the first screw holes (83) and the second screw holes (84) are threadedly connected with a threaded clamping rod (85).

3. Crane luffing mechanism limiter according to claim 1, characterized in that The outer surface of the operation auxiliary block (86) is fixedly connected with a plurality of first rectangular protrusions (87), and the plurality of first rectangular protrusions (87) are equidistantly arranged along the circumferential direction of the operation auxiliary block (86).

4. Crane luffing mechanism limiter according to claim 1, characterized in that The outer surface of the operation auxiliary block (86) is fixedly connected with a rectangular auxiliary block (88), and the top of the rectangular auxiliary block (88) is provided with an operation hole (89).

5. Crane luffing mechanism limiter device according to claim 1, characterized in that The inner wall of the bottom frame (1) is provided with a threaded clamping hole (92), and the inner wall of the threaded clamping hole (92) is threadedly connected with a threaded clamping rod (93).

6. Crane luffing mechanism limiter according to claim 5, characterized in that The outer surface of the threaded clamping rod (93) is fixedly connected with a circular connecting block (94) at the top, and the outer surface of the circular connecting block (94) is fixedly connected with the bottom end of the threaded plug rod (95).

7. Crane luffing mechanism limiter device according to claim 1, characterized in that The outer surface of the threaded clamping cylinder (96) is fixedly connected with a circular block (97) at the top, and the outer surface of the circular block (97) is equidistantly fixedly connected with a plurality of second rectangular protrusions (98) along the circumferential direction thereof.

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