CN216543002U

CN216543002U - Oxygen lance quick-change locking device

Info

Publication number: CN216543002U
Application number: CN202123252765.9U
Authority: CN
Inventors: 杨龙; 刘凯; 姜在彬
Original assignee: SHANDONG CHONGSHENG METALLURGICAL OXYGEN LANCE CO Ltd
Current assignee: SHANDONG CHONGSHENG METALLURGICAL OXYGEN LANCE CO Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-17
Anticipated expiration: 2031-12-23

Abstract

The utility model provides a quick-change locking device of an oxygen lance, which is characterized in that: the novel screw rod is characterized by comprising a screw rod, wherein the lower part of the screw rod is connected with a supporting plate through a base, external threads are arranged on the screw rod, an upper locking nut and a lower locking nut are sleeved on the screw rod, and a locking handle is fixedly connected to the outer side of the upper locking nut. The upper locking nut and the lower locking nut are arranged to lock and fix the fixing plate, so that the locking effect can be effectively ensured; through establish dustproof sleeve pipe at the screw rod upper end cover, can guarantee the leakproofness of screw rod upper end, debris such as dust can not fall on the screw rod with go up lock nut to reduce rusty problem, guarantee lock handle's normal use.

Description

Oxygen lance quick-change locking device

Technical Field

The utility model relates to an oxygen lance quick-change platform, in particular to an oxygen lance quick-change locking device.

Background

The existing oxygen lance quick change device is characterized in that a quick change connector is arranged on a support plate, a locking device is arranged on one side of the quick change connector, and a locking handle is arranged on the locking device and used for pressing a lower fixing plate so as to tightly press the fixing plate on the quick change connector. The existing locking device has the following defects: firstly, the fixing block is tightly pressed only by the locking handle, the lower part of the fixing block is suspended, and the locking effect is poor; and secondly, the screw rod above the locking handle is exposed outside, so that impurities such as dust fall on the screw rod and the nut at the locking handle, the problems such as rusting are caused, and the use of the locking handle is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the traditional technology and provides a quick-change locking device for an oxygen lance.

The aim of the utility model is achieved by the following technical measures: an oxygen rifle quick change locking device which characterized in that: the novel screw rod is characterized by comprising a screw rod, wherein the lower part of the screw rod is connected with a supporting plate through a base, external threads are arranged on the screw rod, an upper locking nut and a lower locking nut are sleeved on the screw rod, and a locking handle is fixedly connected to the outer side of the upper locking nut.

Preferably, a locking washer is fixedly connected to the lower end of the upper locking nut.

Preferably, the locking handle is cross-shaped.

Preferably, a dustproof sleeve is sleeved between the upper end of the screw rod and the upper locking nut.

As a preferred scheme, the upper end of the dustproof sleeve is closed, and the lower end of the dustproof sleeve is opened.

Preferably, the height of the dust-proof sleeve is H1, the distance between the upper end of the screw rod and the lower locking nut is H2, the total height of the upper locking nut and the locking gasket is H3, and H2-H3 < H1 < H2.

Preferably, the dust-proof sleeve is fixedly connected with the upper locking nut.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the advantages that: the upper locking nut and the lower locking nut are arranged to lock and fix the fixing plate, so that the locking effect can be effectively ensured; through establish dustproof sleeve pipe at the screw rod upper end cover, can guarantee the leakproofness of screw rod upper end, debris such as dust can not fall on the screw rod with go up lock nut to reduce rusty problem, guarantee lock handle's normal use.

The utility model is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is a schematic structural view of an oxygen lance quick change locking device of the utility model.

FIG. 2 is a schematic view of the connection structure of the oxygen lance quick change locking device of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Example (b): as shown in fig. 1-2, an oxygen lance quick change locking device, including screw rod 1, the lower part of screw rod 1 is passed through base 2 and is connected with backup pad 3, be provided with the external screw thread on screw rod 1, the cover is equipped with lock nut 4 and lower lock nut 5 on the screw rod 1, the 4 outside fixedly connected with lock handle 6 of upper lock nut, in this embodiment, lock handle 6 is through welded fastening on last lock nut 4, the cross-section of lock handle 6 is the cross, convenient 4 rotatory adjustments to upper lock nut, also can set up to a font or other shapes, lock handle 6 is made for the pipe, also can adopt square pipes such as round steel or round steel. The lower end of the upper locking nut 4 is fixedly connected with a locking gasket 7, so that the locking effect can be ensured.

As shown in fig. 1, the upper end of the screw 1 is sleeved with the dust-proof sleeve 8, the upper end of the dust-proof sleeve 8 is closed, the lower end of the dust-proof sleeve 8 is provided with an opening, the inner diameter of the dust-proof sleeve 8 is larger than the outer diameter of the screw 1, the height of the dust-proof sleeve 8 is H1, the distance between the upper end of the screw 1 and the lower locking nut 5 is H2, the total height of the upper locking nut 4 and the locking gasket 7 is H3, H2-H3 < H1 < H2, and it is ensured that the dust-proof sleeve 8 is always sleeved on the upper end of the screw 1 when the fixing plate is normally fixed, so that the dust-proof performance is ensured. In the present embodiment, the outer diameter of the dust boot 8 is the same as the maximum outer diameter of the upper lock nut 4, and the outer diameter of the dust boot 8 may be set larger than the outer diameter of the upper lock nut 4 to ensure the sealing property with respect to the inner screw 1. The dust-proof sleeve 8 and the upper locking nut 4 are fixedly connected, can be welded or bonded, and only needs to ensure the sealing of the internal screw 1.

As shown in fig. 1-2, the lower end of the base 2 is fixedly connected with the supporting plate 3 through the bottom plate 9, the base 2 is welded on the bottom plate 9, the bottom plate 9 is welded or screwed on the supporting plate 3, the base 2 is provided with a pin shaft 10, both ends of the pin shaft 10 penetrate through the base 2, the middle part of the pin shaft 10 is fixedly connected with the lower end of the screw rod 1, and both ends of the pin shaft 10, which are located outside the base 2, are fixed in a limiting manner through the split pins 11.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An oxygen rifle quick change locking device which characterized in that: the novel screw rod is characterized by comprising a screw rod, wherein the lower part of the screw rod is connected with a supporting plate through a base, external threads are arranged on the screw rod, an upper locking nut and a lower locking nut are sleeved on the screw rod, and a locking handle is fixedly connected to the outer side of the upper locking nut.

2. The oxygen lance quick change locking device as claimed in claim 1, characterized in that: and the lower end of the upper locking nut is fixedly connected with a locking gasket.

3. The oxygen lance quick change locking device as claimed in claim 1, characterized in that: the locking handle is in a cross shape.

4. The oxygen lance quick change locking device as claimed in any one of claims 1 to 3, characterized in that: and a dustproof sleeve is sleeved between the upper end of the screw rod and the upper locking nut.

5. The oxygen lance quick change locking device as claimed in claim 4, characterized in that: the upper end of the dustproof sleeve is closed, and the lower end of the dustproof sleeve is opened.

6. The oxygen lance quick change locking device as claimed in claim 4, characterized in that: the height of the dustproof sleeve is H1, the distance from the upper end of the screw rod to the lower locking nut is H2, the total height of the upper locking nut and the locking gasket is H3, and H2-H3 is more than H1 and more than H2.

7. The oxygen lance quick change locking device as claimed in claim 4, characterized in that: the dustproof sleeve is fixedly connected with the upper locking nut.