CN211103694U

CN211103694U - Close-fitting bolt freezing tool

Info

Publication number: CN211103694U
Application number: CN201921013083.2U
Authority: CN
Inventors: 邹沛; 董文辉; 朱建锋
Original assignee: Cosco Shipping Heavy Industry Co ltd
Current assignee: Cosco Shipping Heavy Industry Co ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2020-07-28
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses a freezing instrument of tight-fitting bolt, relate to the boats and ships field.A freezing instrument of tight-fitting bolt, including the feed liquor pipe, the permeability cell, store up the nitrogen device, feed liquor pipe one end sets up the cone, the other end sets up the cylinder, the discharge orifice is seted up to its lateral wall, the permeability cell is L shape, wear to establish at feed liquor pipe center, protruding cone terminal surface that stretches out, the nitrogen device is hourglass hopper-shaped, the setting is in feed liquor pipe top, it has a perfect understanding mutually with the discharge orifice through its below hole, it strikes the part to hold in the setting of the cylinder terminal surface of feed liquor pipe, the nitrogen device stores up, including the funnel venturi tube, removable cover arranges funnel venturi tube top in, removable cover center is equipped with the bleeder vent, the breather pipe top mouth of pipe is higher than funnel venturi tube upper portion, through the setting of above-mentioned component, it is big to.

Description

Close-fitting bolt freezing tool

Technical Field

The utility model relates to a boats and ships field specifically is close-fitting bolt freezing instrument.

Background

When the tight-fitting bolt of shafting flange in boats and ships field was demolishd, need adopt the freezing instrument of tight-fitting bolt, this instrument is by storing up the nitrogen device, the feed liquor pipe, the profile of tooth connects, the permeability cell etc. is constituteed, wherein store up the nitrogen device, the feed liquor pipe, the profile of tooth connects in proper order the cluster and links in one side of tight-fitting bolt, the permeability cell sets up at the tight-fitting bolt opposite side alone, liquid nitrogen passes through the feed liquor pipe from the liquid nitrogen bottle, the profile of tooth connects and gets into the permeability cell outflow of following the opposite side behind the tight-fitting bolt core, reach the purpose of freezing tight-fitting.

However, in the structure, the vent pipe needs to be separately arranged at the other end of the object to be dismantled, so that the object to be dismantled is shielded, the tool not only occupies a large space, but also brings inconvenience to construction; due to the fact that the tooth pattern connection is adopted, a tooth pattern joint needs to be processed to be matched with a tight-fitting bolt and a liquid inlet pipe, and therefore the tool is slow to install; as the liquid nitrogen is evaporated in the nitrogen storage device, the nitrogen storage device is pressurized, so that the liquid nitrogen directly overflows from the orifice of the vent pipe or is sprayed out under pressure, and the operation is dangerous.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's not enough, provide a tight-fitting bolt freezing instrument that occupation space is little, construction convenience, installation are quick, the operation is safe.

In order to achieve the purpose, the embodiment of the utility model provides a close-fitting bolt freezing tool, including feed liquor pipe, permeability cell, nitrogen storage device, feed liquor pipe one end sets up the cone, and the other end sets up the cylinder, and its lateral wall is seted up and is crossed the discharge orifice, and the permeability cell is L shape, wears to establish in feed liquor pipe center, protruding stretching out the cone terminal surface, and nitrogen storage device is hopper-shaped, sets up above the feed liquor pipe, crosses the discharge orifice and link up mutually through its below hole, sets up at the cylinder terminal surface of feed liquor pipe and bears the part of beating.

Further, the nitrogen storage device comprises a funnel-shaped pipe and a movable cover plate. The movable cover plate is arranged above the funnel-shaped pipe, and the center of the movable cover plate is provided with an air hole.

Further, the upper pipe orifice of the vent pipe is higher than the upper part of the funnel-shaped pipe.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the close-fitting bolt freezing instrument have one of following technological effect at least:

firstly, because the permeability cell wears to establish at feed liquor pipe center, solved the permeability cell among the prior art and set up alone and shelter from the shortcoming of being torn the thing open, consequently occupation space is little and the construction is more convenient.

Secondly, because the feed liquor pipe uses the cone, only need strike the part of holding and can make whole instrument pass through the cone and agree with on tight fit bolt hole to make whole instrument fix on being torn the thing, solved the need among the prior art and additionally processed the shortcoming that the insection connects to being torn the thing, consequently the installation is faster.

And thirdly, as the pipe orifice above the vent pipe is higher than the top of the nitrogen storage device, the nitrogen storage device is directly communicated with the atmosphere through the vent hole of the top movable cover plate, and the nitrogen storage device is internally provided with no pressure, so that the problem that the liquid nitrogen in the prior art overflows from the pipe orifice of the vent pipe or is sprayed out under pressure is solved, the operation is safer, and the practicability is improved.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a front perspective view of the present invention;

FIG. 3 is a schematic perspective view of the liquid inlet pipe of the present invention;

FIG. 4 is a schematic cross-sectional view of the nitrogen storage device of the present invention;

fig. 5 is a cross-sectional view of the utility model when installed on the close-fitting bolt.

Wherein the reference numerals are as follows:

1. the device comprises a liquid inlet pipe, a vent pipe, a nitrogen storage device, a bearing and knocking component, a cone, a cylinder, a flow passing hole, a funnel-shaped pipe, a movable cover plate, air holes and a tight-fitting bolt, wherein the liquid inlet pipe is 2, the vent pipe is 3, the nitrogen storage device is 4, the cone is 5, the cylinder is 6, the flow passing hole is 7, the funnel-shaped pipe is 8, the movable cover plate.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the 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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the utility model, as shown in fig. 1, fig. 2, fig. 3, the utility model discloses a feed liquor pipe 1, permeability cell 2, nitrogen storage device 3, feed liquor pipe one end sets up cone 5, the other end sets up cylinder 6, its lateral wall sets up discharge orifice 7, permeability cell 2 is L shape, wear to establish at feed liquor pipe 1 center, protruding cone 5 terminal surface that stretches out, nitrogen storage device is hourglass hopper-shaped, set up in the feed liquor pipe top, through its below hole and discharge orifice 7 link up mutually, bearing and beating part 4 is set up at the cylinder terminal surface of feed liquor pipe, as shown in fig. 4, nitrogen storage device 3, including funnel venturi tube 8, removable cover 9 places funnel venturi tube 8 top in, removable cover 9 center is equipped with bleeder vent 10. the mouth of pipe 2 top is higher than funnel venturi tube 8 upper portions.

Because the vent pipe 2 is arranged at the center of the liquid inlet pipe 1 in a penetrating way without being arranged separately, the defects that the vent pipe in the prior art is arranged separately and shields the disassembled object are overcome, the utility model has small occupied space and convenient construction, as shown in figure 5, the whole tool can be arranged on the inner hole of the close-fitting bolt 11 through the centrum 5 by knocking the knock-bearing part 4, the whole tool is fixed on the disassembled object, the defect that the tooth line joint which needs to be additionally processed in the prior art is connected to the disassembled object is overcome, the installation of the utility model is rapid, liquid nitrogen enters the close-fitting bolt 11 from the nitrogen storage device 3 through the flow hole 7 to the liquid inlet pipe 1 and then flows out from the vent pipe, the liquid nitrogen does not overflow from the vent pipe 2 because the pipe mouth above the vent pipe 2 is higher than the top of the nitrogen storage device 3, but remains in the vent pipe, and the nitrogen storage device is directly communicated with the atmosphere through the vent hole of, store up in the nitrogen device liquid nitrogen and not take the area, avoided the liquid nitrogen among the prior art to take the spun problem in area from 2 mouths of pipe of permeability cell, make the utility model discloses operation safety, and then improved the practicality.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The close-fitting bolt freezing tool comprises a liquid inlet pipe, a vent pipe and a nitrogen storage device, and is characterized in that one end of the liquid inlet pipe is provided with a cone, the other end of the liquid inlet pipe is provided with a cylinder, the side wall of the liquid inlet pipe is provided with a overflowing hole, the vent pipe is L-shaped and penetrates through the center of the liquid inlet pipe and protrudes out of the end face of the cone, the nitrogen storage device is funnel-shaped and is arranged above the liquid inlet pipe, the nitrogen storage device is communicated with the overflowing hole through an inner hole below the nitrogen storage device, and a knocking component is arranged on the end face of the cylinder of.

2. The close-fitting bolt freezing tool of claim 1, wherein: the nitrogen storage device comprises a funnel-shaped pipe and a movable cover plate; the movable cover plate is arranged above the funnel-shaped pipe, and the center of the movable cover plate is provided with an air hole.

3. The close-fitting bolt freezing tool of claim 2, wherein: and the pipe orifice above the vent pipe is higher than the upper part of the funnel-shaped pipe.