阅读说明：本技术 一种波纹管安装装置 (Corrugated pipe mounting device ) 是由 张海鑫 马晶秋 陈天凤 于 2020-06-16 设计创作，主要内容包括：本发明涉及船舶燃气管路技术领域,公开一种波纹管安装装置。其中波纹管两端均设置有法兰,波纹管安装装置包括两个固定板和间距调节组件,两个固定板分别可拆卸安装于两个所述法兰靠近所述波纹管一侧；两个所述固定板固定于所述间距调节组件的两端,所述间距调节组件用于调节两个所述固定板的间距,以调节所述波纹管长度。本发明固定板固定于法兰,通过间距调节组件调节两个固定板间距,以调节波纹管的长度,使之能够适应两个燃气管的预留间隙长度,然后进行波纹管的安装,安装完成之后卸下波纹管安装装置,以保证波纹管能够在使用过程中吸收轴向载荷和应力。操作步骤简单,优化作业流程,同时能够防止操作人员发生安全事故。(The invention relates to the technical field of ship gas pipelines and discloses a corrugated pipe mounting device. The corrugated pipe installation device comprises two fixing plates and an interval adjusting assembly, wherein the two fixing plates are detachably installed on one sides, close to the corrugated pipe, of the two flanges respectively; the two fixing plates are fixed at two ends of the spacing adjusting assembly, and the spacing adjusting assembly is used for adjusting the spacing between the two fixing plates so as to adjust the length of the corrugated pipe. The fixing plates are fixed on the flange, the distance between the two fixing plates is adjusted through the distance adjusting assembly to adjust the length of the corrugated pipe, so that the corrugated pipe can adapt to the length of a reserved gap between the two gas pipes, then the corrugated pipe is installed, and the corrugated pipe installing device is disassembled after the installation is finished, so that the corrugated pipe can absorb axial load and stress in the using process. The operation steps are simple, the operation flow is optimized, and meanwhile safety accidents of operators can be prevented.)

1. The utility model provides a bellows installation device which characterized in that, bellows (1) both ends all are provided with flange (11), bellows installation device includes:

the two fixing plates (2) are respectively detachably mounted on one sides, close to the corrugated pipe (1), of the two flanges (11);

and the distance adjusting assemblies (4) are used for adjusting the distance between the two fixing plates (2) so as to adjust the length of the corrugated pipe (1).

2. Bellows mounting arrangement according to claim 1, wherein the fixing plate (2) is "Ω" -shaped.

3. The corrugated pipe installation device according to claim 2, wherein the distance adjustment assembly (4) comprises an adjustment rod (41) and two nuts, threads are arranged at two ends of the adjustment rod (41), a connecting through hole (21) is arranged on the fixing plate (2), two ends of the adjustment rod (41) are respectively arranged in the connecting through holes (21) of the two fixing plates (2), and two nuts are respectively in threaded connection with the threads at two ends of the adjustment rod (41).

4. The corrugated pipe mounting device as claimed in claim 2, wherein the spacing adjustment assembly (4) comprises an adjustment rod (41) and two first bolts (42), both end surfaces of the adjustment rod (41) are provided with threaded holes, the fixing plate (2) is provided with a connecting through hole (21), and the first bolts (42) are inserted into the threaded holes of the adjusting rod (41) and are in threaded connection with the connecting through hole (21).

5. Bellows mounting arrangement according to claim 4, wherein the adjustment rod (41) is further provided with a clamping portion (411).

6. The corrugated pipe mounting device as claimed in claim 4, wherein two ends of the fixing plate (2) protrude from the flange (11), two ends of the fixing plate (2) protruding from the flange (11) are provided with the connecting through holes (21), and the two distance adjusting assemblies (4) are respectively arranged corresponding to the two connecting through holes (21).

7. The corrugated pipe mounting device as claimed in claim 1, further comprising a second bolt (3), wherein a fixing through hole (22) is formed in the fixing plate (2), a threaded hole matched with the fixing through hole (22) is formed in the flange (11), and the second bolt (3) penetrates through the fixing through hole (22) and is in threaded connection with the threaded hole of the flange (11).

8. Bellows mounting arrangement according to claim 7, wherein the screw length of the second bolt (3) is smaller than the sum of the thicknesses of the fixing plate (2) and the flange (11).

9. Bellows mounting arrangement according to claim 7, wherein the fixing plate (2) is further provided with screw receiving holes (23), the screw receiving holes (23) being adapted to store the second bolts (3).

10. Bellows mounting arrangement according to claim 9, wherein the fixing through holes (22) on the fixing plate (2) are two and arranged symmetrically with respect to the centre line of the fixing plate (2); the number of the screw receiving holes (23) is two.

Technical Field

The invention relates to the technical field of ship gas pipelines, in particular to a corrugated pipe mounting device.

Background

At present, in a gas pipeline system of a ship double-fuel machine, certain axial load and local stress concentration can be caused by vibration, expansion with heat, contraction with cold and the like in operation of a gas double-wall pipe, so that segmentation can be adopted for the long-distance gas pipe, and a section of detachable double-wall corrugated pipe is added in the middle to absorb the load and the stress. The common gas pipe and the corrugated pipe are connected by a flange.

However, in the actual installation process of the corrugated pipe, the corrugated pipe is influenced by the axial elasticity of the corrugated pipe, the corrugated pipe section is in a non-compression state in a natural state, the length of the corrugated pipe is greater than the length of a gap reserved between two gas pipes, the corrugated pipe is difficult to install, inconvenience is brought to construction, and safety accidents are easily caused if an operator forcibly compresses and installs the corrugated pipe.

Accordingly, there is a need for a bellows mounting device to solve the above-mentioned problems.

Disclosure of Invention

Based on the above, the present invention aims to provide a bellows installation device, which has a simple structure and simple operation steps, optimizes the operation flow, and can prevent safety accidents of operators.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a bellows installation device, bellows both ends all are provided with the flange, bellows installation device includes:

the two fixing plates are respectively detachably mounted on one sides, close to the corrugated pipe, of the two flanges;

and the two fixing plates are fixed at two ends of the spacing adjusting assembly, and the spacing adjusting assembly is used for adjusting the spacing of the two fixing plates so as to adjust the length of the corrugated pipe.

As a preferable technical scheme of the corrugated pipe mounting device, the fixing plate is in an omega shape.

As an optimal technical scheme of a bellows installation device, the interval adjusting assembly comprises an adjusting rod and two nuts, threads are arranged at two ends of the adjusting rod, connecting through holes are formed in the fixing plate, two ends of the adjusting rod penetrate through the two connecting through holes in the fixing plate respectively, and the nuts are in threaded connection with the threads at two ends of the adjusting rod respectively.

As an optimal technical scheme of the corrugated pipe mounting device, the distance adjusting assembly comprises an adjusting rod and two first bolts, threaded holes are formed in two end faces of the adjusting rod, connecting through holes are formed in the fixing plate, and the first bolts penetrate through the connecting through holes and are in threaded connection with the threaded holes of the adjusting rod.

As a preferable technical scheme of the corrugated pipe mounting device, the adjusting rod is further provided with a clamping part.

As an optimal technical scheme of the corrugated pipe installation device, the two ends of the fixing plate protrude out of the flange, the two ends of the flange protrude out of the fixing plate, the connecting through holes are formed in the two ends of the flange, and the distance adjusting assemblies are two groups and correspond to the two connecting through holes respectively.

As an optimal technical scheme of the corrugated pipe mounting device, the corrugated pipe mounting device further comprises a second bolt, a fixing through hole is formed in the fixing plate, a threaded hole matched with the fixing through hole is formed in the flange, and the second bolt penetrates through the fixing through hole and is in threaded connection with the threaded hole of the flange.

As a preferable technical solution of the bellows installation device, a screw length of the second bolt is smaller than a sum of thicknesses of the fixed plate and the flange.

As a preferable technical solution of the bellows installation device, the fixing plate is further provided with a screw receiving hole for storing the second bolt.

As a preferred technical solution of the bellows installation device, the number of the fixing through holes on the fixing plate is two, and the fixing through holes are symmetrically arranged relative to the center line of the fixing plate; the screw receiving holes are two.

The invention has the beneficial effects that:

the fixed plate is fixed in the flange, adjusts two fixed plate intervals through the interval adjustment subassembly to the length of adjusting the bellows makes it can adapt to the reserve clearance length of two gas pipes, then carries out the installation of bellows, unloads bellows installation device after the installation is accomplished, can absorb axial load and stress in order to guarantee the bellows in the use. The mounting device is simple in structure and operation steps, optimizes the operation process, and can prevent safety accidents of operators.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a structural view of a bellows mounting device according to an embodiment of the present invention mounted on a bellows;

FIG. 2 is a schematic structural diagram of a bellows mounting device according to an embodiment of the present invention;

fig. 3 is a front view of a fixing plate according to an embodiment of the present invention.

The figures are labeled as follows:

1. a bellows; 11. a flange;

2. a fixing plate; 21. a connecting through hole; 22. a fixing through hole; 23. a screw receiving hole;

3. a second bolt;

4. a spacing adjustment assembly; 41. adjusting a rod; 411. a clamping portion; 42. a first bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

In the gas pipeline system of the ship double-fuel machine, certain axial load and local stress concentration can be caused by vibration, expansion with heat, contraction with cold and the like in the operation of the gas double-wall pipe, so that the long-distance gas pipe can be segmented, and a section of detachable double-wall corrugated pipe is added in the middle to absorb the load and the stress. The actual installation process of the corrugated pipe is found, the corrugated pipe is influenced by the axial elasticity of the corrugated pipe, the corrugated pipe section is in a non-compression state in a natural state, the length of the corrugated pipe is larger than the length of a gap reserved between two gas pipes, the corrugated pipe is difficult to install, inconvenience is brought to construction, and safety accidents are easily caused if an operator forcibly compresses and installs the corrugated pipe.

In order to solve the above problems, as shown in fig. 1 to 3, the present invention provides a bellows mounting device for adjusting the length of a bellows 1 having flanges 11 at both ends thereof, wherein the bellows mounting device includes two fixing plates 2 and a spacing adjustment assembly 4.

Specifically, since the outer side of the flange 11 of the corrugated pipe 1 needs to be abutted against the flange of a common gas pipe, two fixing plates 2 are respectively detachably mounted on the sides of the flanges 11 of the two corrugated pipes 1, which are close to the corrugated pipe 1. Meanwhile, the two fixing plates 2 are fixed at two ends of the spacing adjusting assembly 4, and the spacing adjusting assembly 4 can adjust the spacing between the two fixing plates 2 to adjust the length of the corrugated pipe 1.

The fixed plate 4 can be dismantled and be fixed in flange 11, adjusts the interval of two fixed plates 2 through interval adjusting part 4, and two flange 11 intervals change along with the change of fixed plate 2 intervals, and the length of bellows 1 can change along with the change of two flange 11 intervals simultaneously. Before 1 installation of bellows, install bellows installation device on bellows 1 earlier, reduce the interval of two flanges 11 through interval adjustment subassembly 4, make the length of bellows 1 be less than the clearance length of two gas pipes, install bellows 1 between two gas pipes, then increase the interval of two flanges 11 through interval adjustment subassembly 4, make 11 butts of flange at 1 both ends of bellows and fixed connection in the flange on two gas pipes, then lift bellows installation device off, in order to guarantee that bellows 1 can absorb axial load and stress in the use. The operation steps are simple, the operation flow is optimized, and meanwhile safety accidents of operators can be prevented.

In order to facilitate the detachment of the fixing plate 2 from the flange 11, in this embodiment, the fixing plate 2 is in an "Ω" shape, meanwhile, the fixing plate 2 is provided with a fixing through hole 22, the flange 11 is provided with a threaded hole matching with the fixing through hole 22, and the second bolt 3 passes through the fixing through hole 22 and is screwed into the threaded hole of the flange 11, so that the fixing plate 2 is fixed on one side of the flange 11 close to the bellows 1. Wherein, because fixed through hole 22 internal diameter is big, second bolt 3 passes easily, does not set up the screw thread moreover, and second bolt 3 only need with the screw hole threaded connection of flange 11, makes things convenient for second bolt 3 to screw up, labour saving and time saving, can also make fixed plate 1 be fixed in flange 11. When the fixed plate 2 needs to be disassembled, the fixed plate 2 can be disassembled from the flange 11 only by disassembling the second bolt 3, so that the detachable connection between the fixed plate 2 and the flange 11 is realized. The threaded holes formed in the flange 11 and the mounting holes for connecting the gas pipe to the flange 11 are arranged in a staggered manner, thereby preventing interference between the threaded holes and the flange 11 when they are butted against each other.

Preferably, the length of the screw of the second bolt 3 is less than the sum of the thicknesses of the fixed plate 2 and the flange 11, and after the fixed plate 2 is fixed to the flange 11 by the second bolt 3, the head of the second bolt 3 cannot extend out of the flange 11, so as to prevent the corrugated pipe from interfering with the gas pipe when the corrugated pipe is butted with the gas pipe.

Further preferably, when the bellows installation device is not used, the second bolt 3 is not easily lost without a fixed position, in order to prevent this phenomenon, in this embodiment, the fixed plate 2 is further provided with a screw receiving hole 23, and the screw receiving hole 23 is a threaded hole for receiving the second bolt 3, so that the second bolt 3 is conveniently stored, the second bolt 3 is prevented from being lost, the use experience of the bellows installation device is increased, and the operation flow is optimized.

Preferably, in this embodiment, as shown in fig. 3, there are two fixing through holes 22 on the fixing plate 2, a in fig. 3 is a central line of the fixing plate 2, the two fixing through holes 22 are symmetrically arranged with respect to the central line of the fixing plate 2, there are also two threaded holes on the flange 11, and the two second bolts 3 fix the fixing plate 2 to the threaded holes, so as to increase the mounting stability of the fixing plate 2. In other embodiments, the number of the fixing through holes 22 and the threaded holes of the flange 11 may be multiple. Of course, the number of the screw receiving holes 23 on the fixing plate 2 is the same as the number of the second bolts 3. Preferably, the two fixing through holes 22 are symmetrically distributed on both sides of the fixing plate 2 in the shape of "Ω".

Further specifically, in this embodiment, the distance adjusting assembly 4 includes an adjusting rod 41 and two first bolts 42, both end face centers of the adjusting rod 41 are provided with threaded holes, the fixing plate 2 is provided with the connecting through hole 21, the first bolts 42 can penetrate through the connecting through hole 21 and then are in threaded connection with the threaded holes of the adjusting rod 41, the fixing plate 2 abuts against the head of the first bolt 42 under the effect of the elastic force of the corrugated pipe 1, and the length of the corrugated pipe 1 is adjusted by adjusting the depth of the first bolts 42 screwed into the threaded holes of the adjusting rod 41. For example, when the first bolt 42 is loosened, the depth of the first bolt 42 screwed into the screw hole of the adjustment rod 41 becomes small, the flange 11 and the fixed plate 2 are urged by the elastic force of the bellows 1 itself, the fixed plate 2 is always in contact with the first bolt 42, and the length of the bellows 1 increases. When the first bolt 42 is tightened, the first bolt 42 is displaced against the elastic force of the bellows 1 itself, the depth of the first bolt 42 screwed into the screw hole of the adjustment rod 41 becomes large, and the length of the bellows 1 becomes small.

In other embodiments, the distance adjusting assembly 4 includes an adjusting rod 41 and two nuts, the outer walls of the two ends of the adjusting rod 41 are both provided with threads, after the two ends of the adjusting rod 41 are respectively inserted into the connecting through holes 21 of the two fixing plates 2, the two nuts are respectively screwed into the threads at the two ends of the adjusting rod 41, the fixing plates 2 abut against the inner sides of the nuts under the effect of the elastic force of the corrugated pipe 1, and the adjustment of the length of the corrugated pipe 1 is realized by adjusting the position of the nuts relative to the adjusting rod 41. For example, when the nut moves in a direction away from the adjustment rod 41, the flange 11 and the fixed plate 2 move by the elastic force of the bellows 1 itself, so that the fixed plate 2 is always in contact with the inside of the nut, and the length of the bellows 1 increases. When the nut moves towards the direction close to the adjusting rod 41, the nut and the fixing plate 2 move under the action of the self elasticity of the corrugated pipe 1, the fixing plate 2 is always abutted to the inner side of the nut, and the length of the corrugated pipe 1 is reduced.

Preferably, in the present embodiment, the adjusting lever 41 is further provided with a clamping portion 411. In this embodiment, the clamping portion 411 is a parallel groove located on both sides of the circumferential direction of the adjusting rod 41, and a tool such as a wrench can clamp the two parallel grooves, so as to prevent the adjusting rod 41 from rotating along with the first bolt 42 when the first bolt 42 is screwed.

Further preferably, in this embodiment, after the fixing plate 2 is mounted on the flange 11 of the corrugated tube 1, two ends of the "Ω" -shaped fixing plate 2 protrude from the flange 11, the number of the connecting through holes 21 is two, and the two connecting through holes 21 are respectively located on the protruding portions of the two "Ω" -shaped ends of the fixing plate 2. The distance adjusting components 4 are also two groups, and the two groups of distance adjusting components 4 are arranged corresponding to the two connecting through holes 21. Preferably, the two connection through holes 21 are symmetrically arranged with respect to a center line of the fixing plate 2, preventing the fixing plate 2 from being eccentric.

It should be particularly noted that, in the present embodiment, the installation steps of the bellows installation device are as follows:

1. using four second bolts 3 to respectively fasten two fixing plates 2 on the side, close to the corrugated pipe 1, of the flange 11 at the two ends of the corrugated pipe 1;

2. the two fixing plates 2 are respectively fixed at two ends of the two adjusting rods 41 by using four first bolts 42, the depth of the threaded holes screwed into the adjusting rods 41 is increased by screwing the first bolts 42, the distance between the two flanges 11 is reduced, and the length of the corrugated pipe 1 is smaller than the length of the reserved gap of the two gas pipes;

3. the corrugated pipe 1 is arranged in a reserved gap between two gas pipes, the depth of a threaded hole screwed in the adjusting rod 41 is reduced by unscrewing the first bolt 42, the distance between the two flanges 11 is increased, and the flanges 11 at the two ends of the corrugated pipe 1 are abutted to the flanges on the two gas pipes;

4. because when butt joint bellows 1 and gas pipe through the bolt, the bolt need wear out the mounting hole of bellows 1 upper flange 11, and fixed plate 2 installation back can shelter from the partial mounting hole of bellows 1 upper flange 11. Therefore, the fixing plate 2 is butted with an unshielded mounting hole on the flange 11 of the corrugated pipe 1 in advance and is pre-tightened by a bolt and a nut;

5. unscrewing the second bolts 3, removing the bellows mounting device, and simultaneously mounting the second bolts 3 in the screw receiving holes 23;

6. butting a mounting hole which is not pre-tightened on a flange 11 of the corrugated pipe 1;

7. and all bolts and nuts for butting the corrugated pipe 1 and the gas pipe are fastened, and the installation is finished.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.