JPH05628Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an automatic attachment/detachment device for piping flange joints installed in nuclear facilities, outer space, deep seabeds, etc. This invention relates to an automatic piping flange joint attachment/detachment device that allows for easy removal of piping flange joints.

[Conventional technology] Various types of equipment such as experimental equipment and measuring instruments are installed in the middle of piping installed in nuclear facilities, outer space, the deep sea floor, etc., and these equipment must be removed from the piping for repair, maintenance, and inspection. Must be taken off and put on. These devices are connected by piping flange joints,
Various attachment/detachment devices have been proposed, which allow automatic attachment/detachment.

[Problem to be solved by the invention] However, even if a piping flange joint is simply attached or detached, the attachment/detachment device is located on the outer periphery of the flange on the side of the device to be removed, and in order to remove it, the device must be attached to the flange on the connection side. There is a problem in that it cannot be removed unless an operation such as lifting it upward is performed after separating it a predetermined distance in the axial direction.

This invention was made in consideration of the above circumstances,
It is an object of the present invention to provide a pipe flange joint automatic attachment/detachment device capable of easily removing one of the pipes after removing the pipe flange joint.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides support members that are provided on both sides of abutted piping flange joints and are movable along the axial direction of the piping, and a flange A tightening means disposed on the outer periphery of the joint and tightening or loosening the flange joint from the outer periphery to attach and detach the flange joint, and a moving means provided between the supporting members, which act to tighten the tightening means. Alternatively, it comprises a link mechanism that moves to loosen, and a cam means that engages with the link mechanism and shifts the tightening means from the flange joint position together with the support member in the axial direction when the link mechanism moves to loosen. .

[Function] According to the above configuration, when the butted pipe flange joints are removed, when the link mechanism is moved to loosen the tightening means from the tightened state, the cam means that engages with the link mechanism loosens the tightening state. Since the means is moved in the axial direction together with the support member, there are no obstacles on the flange joint of the pipe to be removed, and therefore the pipe can be easily removed by lifting the pipe from the removed state.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

In Figs. 1 to 4, 1a and 1b are pipes arranged on the floor 2, and flange joints 3a and 3b are provided at their ends, respectively. This piping 1
Rails 4, 4 are laid along the axial direction on the floor surface 2 on both sides of a, 1b, and the rails 4, 4
Support members 5a and 5b are movably provided above.

A pair of upper and lower moving means 6 and 7 are provided between the support members 5a and 5b. The transportation means 6 and 7 are
Threaded parts 6a, 6 with left-handed threads and right-handed threads on both sides
b, 7a, 7b, and its threaded portions 6a, 6b,
7a, 7b, upper and lower nut portions 10a, 11a, of moving arms 9a, 9b of link mechanisms 8a, 8b,
10b and 11b are screwed together, and the threaded portions 6a and 6
By the rotation of b, 7a, 7b, the moving arms 9a, 9b
However, it approaches and moves away from the pipes 1a and 1b. The link mechanisms 8a, 8b further include upper and lower nut portions 10a, 11 of the moving arms 9a, 9b.
a, 10b, 11b, and has swing arms 12a, 12b rotatably connected to the swing arms 1
At 2a and 12b, the tightening means 13 for attaching and detaching the flange joints 3a and 3b is operated, and by this operation, the flange couplings 3a and 3b are tightened or loosened from the outer periphery to be attached and detached. The tightening means 13 each have a swing arm 1
2a, 12b, a pair of upper and lower tightening bands 14a, 14b, and the bands 14a, 14.
flange joint 3
It consists of a plurality of crimp segments 15 that fit and connect to a, 3b.

The crimp segment 15 has a U-shaped cross section as shown in FIG. Connect flange joints 3a and 3b.

Now, in FIGS. 1 to 3, moving arms 9a, 9
Cam means 17a, 17b for shifting the tightening means 13 from the positions of the flange joints 3a, 3b are provided between the nut portions 11a, 11b at the bottom of b and the floor surface 2. The cam means 17a, 17b consist of cam rollers 18a, 18b provided on the lower nut portions 11a, 11b of the movable arms 9a, 9b, and cam grooves 19a, 19b provided on the floor surface 2.
Also, a guide frame 2 is attached to both supporting members 5a and 5b.
0a and 20b are provided, and this guide frame 2
0 is provided with a guide groove 22 for guiding the tightening pin 21.

Next, the operation of the above embodiment will be explained.

As shown in Figures 1 and 2, the pipes 1a and 1
It is assumed that the connection flanges 3a and 3b of b are in a state of being tightened by the tightening means 13. In this state, the moving means 6 and 7 move the moving arms 9 of the link mechanisms 8a and 8b.
Move a and 9b closer to pipes 1a and 1b,
In this state, the clamping bands 14a, 14b connect the pipes 1a, 1b with the crimp segments 15 crimped to the joint flanges 3a, 3b by the swing arms 12a, 12b.

The case where the piping is removed from the state shown in FIGS. 1 and 2 will be explained with reference to FIGS. 3 and 4. First, when the threaded portions 6a, 6b, 7a, 7b of the moving means 6, 7 are rotated vertically and synchronously in the opposite direction to the tightening direction, the moving arms 9a, 9b of the link mechanisms 8a, 8b move away from the pipes 1a, 1b. The swinging arms 12a, 12b are also rotated in a direction to loosen the tightening bands 14a, 14b, and the crimp segment 15 is attached to the joint flange 3.
The joint flanges 3a, 3b are moved radially outward from the state where they are crimped to the joint flanges 3a, 3b. When the moving arms 9a and 9b move further,
Cam rollers 18a, 1 of cam means 17a, 17b provided in the lower nut portions 11a, 11b
8b is moved in the axial direction by the cam grooves 19a, 19b, and as a result, the link means 8a, 8b and the tightening means 13 are displaced from the position of the joint flanges 3a, 3b together with the supporting members 5a, 5b. At this time, the crimp segment 15 is shifted to one side of the pipe 1b as shown by the two-dot chain line in FIG. can.

Also, if the operation is reversed to the above, the joint flange 3a,
3b can be connected. In this case as well, the connection side piping 1a
When the flange joint 3a of the piping 1b is butted against the joint 3b of the other pipe 1b, the tightening means 13 and the like do not get in the way, so the butt can be easily done.

[Effectiveness of the Invention] As is clear from the above explanation, according to the present invention, the tightening means and link mechanism are used to attach and detach the flange joint, and when attaching and detaching, these are shifted in the axial direction of the piping, so there are no obstacles on the removal side, and the piping can be easily removed.

[Brief explanation of drawings]

Figure 1 is a front view showing one embodiment of the present invention;
The figures are a view taken along the - line in Fig. 1, Fig. 3 is a front view of the state in which the piping in Fig. 1 has been attached and removed, and Fig. 4 is a detailed sectional view showing details of the flange joint and crimp segment in the present invention. be. In the figure, 1a and 1b are piping, 3a and 3b are flange joints, 5a and 5b are supporting members, 6 and 7 are moving means, 8a and 8b are link mechanisms, 13 is a tightening means,
17a and 17b are cam means.

Claims (1)

[Scope of utility model registration request] A supporting member is provided on both sides of a butted piping flange joint and is movable along the axial direction of the piping, and a supporting member is placed on the outer periphery of the flange joint, and the flange joint is tightened or loosened from the outer periphery to attach or detach the flange joint. a link mechanism that is actuated by a moving means provided between the tightening means and the support member and that moves to tighten or loosen the tightening means; and a link mechanism that engages with the link mechanism and moves the link mechanism to loosen it. and cam means for shifting the tightening means from the position of the flange joint together with the supporting member in the axial direction.