Recyclable handle zero salient point structure

Abstract

A recyclable handle zero position salient point structure comprises a detachable salient point installed in a cross claw, the cross claw is provided with a hole position for threaded connection of the salient point, the maintenance and inspection time and the maintenance and inspection period of a handle part are saved, the maintenance and inspection efficiency is improved, the working efficiency is improved, and allocation and utilization of human resources are improved. And the waiting time of ship loading and ship unloading is shortened, and the economic benefits are improved.

Description

Technical Field

[0001] The utility model relates to a zero-position self-locking technology for a crane, in particular to a recyclable handle zero-position convex point structure, belonging to the technical field of crane control equipment. Background Art

[0002] The bridge crane handle adopts zero-position self-locking protection to prevent unnecessary losses and dangers caused by misoperation during operation. That is, the handle gear lever must be pressed down, that is, the cross claw is disengaged from the self-locking buckle after pressing down, and it can move forward, backward, left and right to make the lifting trolley run. Because the cross claw is frequently disengaged from the self-locking buckle, and there is constant friction up and down, the handle operating lever wears the cross claw protrusions more, which brings inconvenience in actual emergency repairs and maintenance, and causes unnecessary safety accidents during operation. As the company's operating volume continues to reach new highs, the workload is getting bigger and bigger, and the handles of the lifting, trolley and small car are used more and more frequently, resulting in the handle zero position problem being particularly prominent, and maintenance and inspection are very inconvenient. It is very important to extend its service life during use and to enable maintenance personnel to quickly maintain and replace it during maintenance. Utility Model Content

[0003] In order to solve the problems of the prior art, the purpose of the utility model is to provide a reusable handle zero-position self-locking device that reduces the maintenance time of maintenance personnel and reduces the accident risk rate of equipment, thereby improving maintenance efficiency and maintenance quality.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: a reusable handle zero-position convex point structure, including a detachable convex point installed in a cross claw, and the cross claw is provided with a hole for threaded connection of the convex point.

[0005] The protrusions are in the form of rivets.

[0006] The protrusion is a bolt structure.

[0007] The bolts are equipped with lock nuts.

[0008] The material of the convex points is stainless steel.

[0009] The utility model provides a reusable handle zero-position convex point structure, which has the following advantages compared with the prior art:

[0010] It saves maintenance and inspection time and the maintenance and inspection cycle of the handle parts, improves maintenance efficiency, improves work efficiency and the allocation and utilization of human resources, reduces the waiting time for loading and unloading, and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model;

[0012] Figure 2 Explosion diagram of the convex point, cross claw, and locknut

[0013] In the figure: cross claw 1, convex point 2, hole position 3, locknut 4 Specific implementation manner

[0014] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model

[0015] Please refer to the accompanying drawings. The technical solution provided by the present utility model: In view of the above problems, from the perspective of people-oriented, reducing the time for maintenance and repair, and saving costs and increasing efficiency, this application has made improvements and innovations. It uses a detachable convex point 2 to replace the original fixed convex point 2. After multiple tests, in terms of material selection, two M5*15mm hexagonal stainless steel bolts with moderate hardness and galvanized are selected as the convex points 2 that are stuck with the self-locking buckle. The screw head of the bolts is polished to remove the edges and make it smooth. Drilling and tapping are performed on the position where the cross claw 1 originally wore and fixed the convex point 2 to form a hole position 3 for the bolts to enter, and an M5 locknut 4 is used to reinforce the bolts to prevent the bolts from loosening and misaligning during use

[0016] This application saves the time for maintenance and inspection and the maintenance inspection cycle of the handle part. The inspection cycle of this part has been reduced from the original monthly inspection to a semi-annual or quarterly inspection, improving the maintenance efficiency. For emergency repair of faults, since the original two people separately disassembled the new and old handles to replace the damaged spare parts, it has now become one person disassembling the damaged handle to replace the bolts of the cross claw 1, improving the work efficiency and the allocation and utilization of human resources, and reducing the waiting time for loading and unloading ships

[0017] At the same time, it also improves economic benefits. The safety core of the handle is the self-locking function. When the cross claw 1 wears, the handle loses its important self-locking protection. The procurement cost of replacing a complete set of handles is tens of thousands, and it will cause waste of other components of the original handle. Although it is also possible to customize the cross claw 1, due to the high cost of mold opening by a third party and the small number of purchases, the cost of customized processing is also very high. In addition, the accuracy requirements cannot reach a perfect fit with the original, and there is a certain gap, so it cannot be used immediately and takes a long time. Now after the improvement, only the bolts need to be replaced, and the cost is greatly reduced, achieving cost reduction and efficiency increase

[0018] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present utility model.

Claims

1. A reusable handle zero-position bump structure, characterized in that: It includes a detachable bump (2) installed inside the cross claw (1), and the cross claw is provided with a hole position (3) for the threaded connection of the bump (2).

2. The reusable handle zero-position bump (2) structure according to claim 1, characterized in that: The bump (2) is in the form of a rivet.

3. The reusable handle zero-position bump (2) structure according to claim 1, characterized in that: The bump (2) is a bolt structure.

4. The reusable handle zero-position bump (2) structure according to claim 3, characterized in that: The bolt is equipped with a locknut (4).

5. The reusable handle zero-position bump (2) structure according to claim 1, characterized in that: The material of the bump (2) is stainless steel.

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