JPS6211237B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION Technical Field of the Invention The present invention relates to a device for removably connecting a pressure pipe for transferring pressurized fluid such as compressed air with a branch pipe for taking out the pressurized fluid. It is something.

Prior art and its problems Conventionally, there is a device for connecting a branch pipe to a pressure pipe, as disclosed in US Pat. No. 3,195,562.

As shown in FIGS. 16 to 19, air release stations 13 are provided at appropriate intervals in a pressure pipe 12 for transferring compressed air, and the station 13 is opened and closed by a spring-seated on-off valve 16. While the discharge part 14 is provided, a trolley 37 is slidably supported by the enclosure 27 on the outer periphery of the pressure pipe 12, and a connecting pipe 46 is inserted into the trolley 37 via a compression spring 44. and move the connecting pipe 46 along the pressure pipe 12,
The connecting pipe 46 is guided to the air release station 13 of the pressure pipe 12 by a guide device 17 made of channel material, and the discharge part 1 at the station 13 is guided.
The opening/closing valve 16 of No. 4 is opened by the connecting pipe 46, and the branch pipe, that is, the hose 52 and the pressure pipe 1 are connected to the connecting pipe 46.
2 are connected to each other. The connecting pipe 46 includes a rim 48 and a nipple 47. The rim 48 is guided by frictionally engaging the flange 24 of the guide device 17, and the nipple 47 is compressed at the connecting position between the connecting pipe 46 and the discharge part 14. As the connecting pipe 46 moves upward by the spring 44, the on-off valve 16 opens and communicates with the pressure pipe 12.

However, such conventional devices have the following problems.

The trolley 37 functions only as a means for moving the connecting pipe 46, and the connecting pipe 46 also serves as a means for opening and closing the on-off valve 16 in the discharge section 14 and as a means for connecting the pressure pipe 12 and the hose 52, which is a branch pipe. Therefore, the trolley 37 and the connecting pipe 4
6 as a guide mechanism, the enclosure 27 and the guide device 1
7 must be provided separately, and the guide device 17 also has a connecting pipe 46 and a discharge section 14.
Means for positioning and centering the on-off valve 16, ie, the inclined wall 21 and the collar 19, is required, which complicates the structure and increases costs.

The movement of the connecting tube 46 to the air release station 13 is carried out against the force of the compression spring 44 while compressing it, with the rim 48 of the tube 46 in frictional engagement with the flange 24 of the guide device 17. Therefore, the movement resistance is large and workability is poor, and since the movement operation is performed via the hose 52, if the movement resistance is large as described above, there is a risk that excessive force will be applied to the hose 52 and damage the hose 52. .

Technical problem to be solved by the present invention The technical problem to be solved by the present invention is to configure the opening/closing means for the on-off valve in the discharge section and the connecting means for the pressure pipe and the branch pipe as separate members. The opening/closing means is constituted by a magnetic actuating element that does not cause movement resistance of the connecting means, and the connecting means is directly supported by the pressure pipe, thereby simplifying the structure of the guide mechanism and allowing smooth movement operation. be.

"Structure of the invention" Means for solving the technical problems The means taken by the present invention to solve the above problems are as follows:
A pressure pipe for transferring pressurized fluid is provided with a plurality of discharge portions each having a discharge port that opens at appropriate intervals and an on-off valve that opens and closes the discharge port, and a branch pipe is connected to the outer periphery of the pressure pipe. A connecting block body provided with a branch passage is slidably supported in the axial direction so as to be freely movable between a connecting position where the branch passage and the discharge port communicate with each other and a non-coupling position where both are blocked, and is provided with a closing means for biasing the valve toward the discharge port toward the closing side, and is also provided with an actuating portion made of a magnetic material constituting the passive side of the opening means, and the block body is provided with a communicating portion when moved to the connecting position. a branching path to open the valve, a sealing means for sealing the flow path formed between the discharge ports from the outside, and a swinging arm having a free end facing the operating portion of the on-off valve and constituting the active side of the opening means of the valve. , and an operating member for moving the free end of the swinging arm in a direction away from the operating section, a permanent magnet is provided at the free end of the swinging arm, and the permanent magnet and the operating section magnetically open and close the on-off valve. It constitutes a means.

According to the above means, when the connecting block body is moved to a predetermined connecting position, the swinging arm that constitutes the active side of the opening/closing means of the opening/closing valve in the discharge section is not in a magnetically active state, so that the connecting block body is moved to a predetermined connecting position. It does not act as a resistance, and when the block body reaches the connecting position, the free end of the swinging arm and the actuating part magnetically cooperate to open the on-off valve and communicate the discharge port with the branch path. By swinging the swinging arm using the operating member and separating it from the actuating part, the cooperative relationship is cut off, the on-off valve is closed, the communication between the discharge port and the branch passage is cut off, and the connecting block body is moved to the connected position. It will be moved again from

"Effects of the Invention" According to the configuration of the present invention as described above, the opening/closing means for the on-off valve in the discharge section and the connecting means for the pressure pipe and the branch pipe are connected to the operating section and the swing arm, respectively, and to the connecting block. The swinging arm, which is the active side of the opening/closing means, does not act as a movement resistance of the connecting block body, which is the connecting means.
Since the connecting block body is directly supported on the outer periphery of the pressure pipe, the structure of the guide mechanism that guides the movement of the opening/closing means and the connecting means can be simplified and costs can be reduced. The movement resistance is reduced, and the movement operation can be carried out smoothly and with little effort.

``Embodiment'' An example of carrying out the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, a pressure pipe 1 has a square cross section, and has discharge ports 4 opened at appropriate intervals, and A plurality of discharge portions 100 each including an on-off valve 5 for opening and closing the discharge port 4 are provided, and a branch pipe is connected to the discharge portion 100 via a connecting block 10 serving as a connecting means.

The on-off valve 5 is inserted into the insertion hole 55 of the valve lever 2 as shown in FIG.
The discharge port 4 is closed via the. The valve lever 2 is an actuating member of the on-off valve 5, and is made of a magnetic material such as soft iron, and has a support leg 9 at one end, an actuating part 3 at the other end, and a tilting rib 8 made of a knife edge in the middle. It is designed to be tilted about the rib 8 as a fulcrum. The leaf spring 7 biases the valve lever 2 so that its support leg 9 contacts the inner wall of the pressure pipe 1, maintains the closed state of the on-off valve 5, and changes the valve 5 from the open state to the closed state. It is intended to restore the That is, when the on-off valve 5 is in the closed state, the actuating portion 3 of the valve lever 2 is kept separated from the inner wall of the pressure pipe 1.

The connecting block body 10 has a shape that surrounds the outer periphery of the pressure pipe 1, is slidably supported on the pressure pipe 1 via a guide 11, and is connected to the discharge part 100.
a branch passage 12 for connecting a branch pipe that communicates with the discharge port 4 of the pressure pipe 1 at a connection position with the branch passage 1;
2 and the discharge port 4, a swinging arm 18 that opens the seal of the sealing means and opens the on-off valve 5, and the arm 18. A frame rod 22 is provided as an operating member for operating the frame rod 22.

The sealing means has a pressure chamber 1 located upstream of the branch passage 12.
3, and an elastic membrane 15 that engages with the outer periphery of the pressure tube 1 and is provided with a through hole 14 is attached to the chamber 13, so that the pressurized fluid in the pressure tube 1 passes through the through hole 14 to the pressure chamber 13. When the pressure fluid flows into the pressure tube 1, the elastic membrane 15 is pressed against the outer wall of the pressure tube 1 by the pressure of the pressurized fluid and brought into close contact with the outer wall of the pressure tube 1. A relief hole 16 is communicated within the pressure chamber 13, and the relief hole 16 communicates with the swing arm 18.
It is closed via a closing member 17 provided at.

One end of the swinging arm 18 is rotatably supported by the connecting block 10 via a support shaft 19, and a permanent magnet 21 made of a high cobalt alloy magnet or the like is provided at the other end, that is, a free end. is biased toward the pressure pipe 1 side by. The magnet 21 corresponds to the actuating part 3 of the on-off valve 5 at the connecting position of the connecting block 10, and magnetically cooperates with the actuating part 3 to open the on-off valve 5.

Frame rod 22 which is an operating member of the swing arm 18
is loosely fitted around the outer periphery of the pressure pipe 1, and its pushing down action causes the swinging arm 18 to swing in the direction away from the actuating part 3, causing the closing member 17 of the arm 18 to separate from the relief hole 16, thereby removing the hole. 16.

The apparatus of this embodiment as described above has a connecting block body 10 for providing connection in the discharge section 100.
is manually moved to the connected position shown in FIG. When the connecting block 10 reaches the connecting position, the permanent magnet of the swing arm 18 attracts the actuating part 3 of the on-off valve 5, and the valve lever 2
is tilted about the tilting rib 8 against the leaf spring 7, and the on-off valve 5 is opened. By opening the on-off valve 5, the pressurized fluid flows through the through hole 14 and the pressure chamber 13 to the branch passage 12, while the elastic membrane 1 of the pressure chamber 13
5 is in close contact with the pressure pipe 1 to maintain sealing properties, and the movement of the connecting block 10 is restricted, ensuring a strong connection between the block 10 and the discharge portion 100.

Connecting block body 10 to discharge part 100
To release the connection, push down the frame rod 22 and swing the swinging arm 18 downward, thereby interrupting the magnetic cooperative relationship between the permanent magnet 21 of the arm 18 and the operating part 3 of the on-off valve 5. The valve lever 2 is biased by the leaf spring 7 and tilts, and the opening/closing valve 5 is opened.
is closed to close the discharge port 4. Further, the swinging of the swinging arm 18 accompanies the opening of the relief hole 16, the pressure in the pressure chamber 13 decreases, the connection of the connecting block body 10 is released, and the swinging arm 18 is moved downward by the frame rod 22. The connecting block 10 can be easily moved manually while maintaining the swinging state.

FIG. 7 shows an example of the application of the above-described device to the supply of compressed air to a pneumatic tool 40. The pressure pipe 1 is arranged horizontally at waist height in the workplace, and is connected to two connecting blocks 10.
The branch passages 12 of these block bodies 10 are connected to the tool 40 via a hose 41 serving as a branch pipe.

FIG. 8 shows a second embodiment. In this embodiment, the pressure pipe 1 is provided with a mounting bar 50 for mounting on a wall.

FIG. 9 shows a third embodiment, in which the structure of the pressure tube and the structure of the operating member of the swing arm are different from those of the embodiment.

That is, the pressure pipe 1 is a suspension pipe having a square conduit path 62, has mounting flanges 63 for suspension on both sides of its upper end, and guide ribs 65 for guiding the connecting block body 60 on both sides of its lower end. , 66 are provided.

On the other hand, the operating member consists of a rod 67 extending downward from the pressure pipe 1, and the rod 76 is connected to the swing arm 1.
It is pivoted to the free end of 8.

FIG. 10 shows a fourth embodiment, which differs from the previous embodiments in the structure of the operating member and sealing means.

That is, the operating member consists of a lever 73 that operates as a lever. The lever 73 is a connecting block body 70
The upper end is pivoted to hang down, and it has support arms 75 and 76 on both sides of the pivot point, and has an operating arm 74 extending downward away from the pivot point, and the operating arm 74 is indicated by the arrow. By moving in the directions shown by 71 and 72, the swing arm 1 performs a lever action.
8. Lever ratio a that determines the amount of swing of the swing arm 18 due to the lever action:
b:c are set appropriately.

On the other hand, the sealing means connects the elastic membrane 1 to the pressure chamber 13.
Another elastic membrane 77 is provided outside of the elastic membrane 5. This elastic membrane 77 is provided with a branch passage 12 at its center, and is pressed against the joint 79 of the hose 41 by the pressure caused by the inflow of pressurized fluid into the pressure chamber 13.
This is to firmly connect the branch path 12 and the joint 79 while maintaining sealing performance.

FIG. 11 shows a fifth embodiment, and this embodiment differs from the previous embodiments in the structure of the discharge section.

That is, in the discharge part 200, a valve housing 240 is provided above the discharge port 202 of the pressure pipe 201, and within the housing 240, a blocking membrane 242 that corresponds to the discharge port 202 and constitutes an on-off valve is provided.
In addition, a plurality of channels 241 are formed which are partitioned by this membrane 242. The occlusion membrane 242 is the spring 2
43 in the closing direction.

A relief passage 244 is communicated with the flow path 241 connected to the discharge port 202, and this relief passage 24
Valve lever 2 with 4 abutting the valve seat 245 at its end
It is closed by 47 closing members 246.
The valve lever 247 has a support shaft 250 attached to the housing 248.
The spring 24
9 in the valve-closing direction, and is provided with an actuating portion 247a made of a magnetic material that cooperates with the permanent magnet 251 of the swing arm 18 at the swing end.

The housing 248 of the valve lever 247 has a through hole 253 in the valve housing 240 and a through hole 2 in the occluding membrane 242.
The flow path 24 upstream from the discharge port 202 via 52
1 , and the inside of the pressure pipe 201 via the inflow hole 254 .

Therefore, in the discharge part 200 as described above, in its closed state, the inside of the valve housing 240 and the inside of the housing 248 of the valve lever 247 are connected to the pressure pipe 201.
The valve lever 247 is kept closed, the relief passage 244 is closed, and the discharge port 202 is kept closed by the closing membrane 242.

On the other hand, when the valve lever 247 is swung clockwise by the permanent magnet 251, the relief passage 244 opens and the pressure inside the housing 248 escapes to the flow passage 241 connected to the discharge port 202, and the The pressure inside the flow path 241 decreases, the closing membrane 242 is pushed up by the pressure of the pressurized fluid, and the discharge port 202 is opened.

12 to 15 show a sixth embodiment, and FIG. 15 shows a schematic sectional view of the whole.
In this embodiment, the discharge section 300 is independent,
It is installed on an insert plate 301 inserted between two ribs 302 of the pressure pipe 303, and the pressure pipe 303 is inserted through the insert plate 301.
It is held by a snap ring 304 which is removably fitted into an insertion hole 306 in a bottom part 305 of the holder and which can be inserted laterally through a groove 302' as shown in FIG.

A valve cover 308 is provided at the upper part of the discharge part 300, and a valve element 307 is provided at the lower part thereof. A passage 309 is formed in the valve element 307 to communicate the inside of the discharge part 300 and the inside of the pressure pipe 303, and the passage 309 connects the valve element 307 and the valve cover 308.
and is closed by a membrane 310 disposed between. The membrane 310 is a contact plate 31 that is biased by a spring 311.
2 and the valve seat 313 of the valve element 307
is in pressure contact with. The valve seat 313 surrounds a discharge port 314 extending through the insert plate 301. This outlet 314 is provided with a cam 315 of a bayonet catch, with the help of which a branch pipe can be directly connected to the outlet 314.

Opening/closing valve 317 for opening the discharge section 300
is biased in the valve closing direction via a spring 316, and opens and closes a bypass passage to the discharge port 314, which is made up of communication passages 318, 319 and a throttle portion 320 in the middle thereof. These channels 318, 319, and 320 communicate with a chamber formed on the valve lid 308 side of the membrane 310. The opening/closing valve 317 is opened magnetically. That is, the permanent magnet 35 is placed inside the connecting block body 350 partially shown in FIG.
1 is provided, and this magnet 351 is the on-off valve 3.
The on-off valve 3 cooperates with the operating part 321 provided in the
17 is urged downward to open the valve. The operating portion 321 is a recess 32 of the insert plate 301.
2, whereby the actuating section 321
The gap between the permanent magnet 351 and the permanent magnet 351 is kept small, and reliable operation of the on-off valve 317 can be obtained.

The advantages of the discharge section 300 in this embodiment are as follows:
The problem is that it is impossible to open the on-off valve 317 mechanically or manually without using a magnet. Another advantage is that maintenance of the outlet 300 is very easy. That is, Snut Spring 3
04, the insert plate 301 is removed, and the discharge part 300 can be easily cleaned and re-inserted and assembled.

Note that the insert plate 301 is equipped with a pressure pipe 303.
A soft sealing member 323 is provided for sealing the to the outside. Also, the filter can be assembled into the communication path 318 without difficulty. However, the risk of contamination of the communication channel 318 is already low due to its arrangement above the pressure tube bottom 305.

On the other hand, the connection means for the discharge section 300 has a structure as shown in FIGS. 13 and 14. That is, the connecting block body 350 includes a square connecting element 352 and rollers 35 fixed to both sides of the connecting element 352 and engaging with the pressure pipe 303.
4 and two side plates 353 having a connecting element 3
52 and has a passage 355 therein, and an actuating device 357 for opening the on-off valve 317.

The swinging arm 356 has a free end connected to the connecting head 3.
A pipe joint 359 with a branch passage 360 is connected to the hose 36 in the head 358.
It is screwed down to receive 1. The mounting structure of the swing arm 356 is such that the arm 356 is supported on the block body 350 via a hollow pin 362.

Pressurized fluid from the pressure pipe 303 flows into the hollow pin 362 via a pressure chamber 363 and a communication path 364, and from this pin 362 flows into a branch path 360 through a path 355 in the swing arm 356. Pressurized fluid flows through it.

The communication path 364 is connected to the spring 3 as shown in FIG.
65 forms a valve seat of a spherical check valve 366 biased by 65, and communicates with the interior of a hollow flange 368 attached to the side plate 353 through an aperture 367. That is, the recess in the hollow flange 368 forms an external connecting pipe 369 between the communication channel 364 and the inlet to the hollow pin 362 . Side plate 35
This connecting pipe 369 located outside of the first
As shown schematically on the left side of Figure 1, it may be used to mount tubular components such as, for example, a pressure control valve 370 and an oil cup 371, or the like. The inlet A constitutes a supply pipe from the communication path 364, and the inlet B constitutes a discharge port into the hollow pin 362.

Said actuating device 357 is arranged in the pressure chamber 363 and its central body 376 is connected to a guide wall 378 by a rib 377 and constitutes an insert element. The central body 376 is urged downward by a spring 379 and connected to the swing arm 356 by a connecting rod 38.
Connected via 0. This connecting rod 380 connects to the connecting block body 35 through a sealing member 381.
It is attached to 0.

Therefore, in this embodiment, when the connecting block body 350 is located at the connecting position, the opening/closing valve 317 of the discharge part 300 is connected to the central body 3.
The valve is opened by being attracted by the permanent magnet 351 of 76. This opening of the valve generates negative pressure in the chamber of the membrane 310 on the valve lid 308 side, and the membrane 310 is lifted to open the discharge port 314, allowing the pressurized fluid in the pressure chamber 363 to flow in, and at that pressure. Elastic membrane 3 in the same room 363
82 is pressed against the insert plate 301, and a tight connection is established between the insert plate 301 and the connecting block body 350.

Then, by pulling the hose 361 at the connecting position, the swinging arm 356 is connected to the pressure pipe 3.
When the actuating device 3 is swung away from the
57 is lowered and its permanent magnet 351 is the on-off valve 317.
The on-off valve 317 is closed and the discharge port 314 is closed. That is, hose 3
Reference numeral 61 also functions as an operating member for the swing arm 356.

Further, the swinging of the swinging arm 356 is caused by the pressure chamber 3
A relief valve 383 provided at the bottom of the valve 63 is interlocked with the valve 383. That is, the relief valve 383 has its operating rod 384 connected to the swing arm 356,
The valve opens when the operating rod 384 moves downward in conjunction with the swinging of the swinging arm 356, and the pressure chamber 3
This is to release the pressure inside 63. This relief valve 3
83 releases the pressure in the pressure chamber 363, the connection by the elastic membrane 382 is released, and the connection block 350 can be smoothly moved manually.

The pressure tube 303 is made of an extruded material, and a rib 302 for receiving the insert plate 301 is integrally formed in this material. As shown in FIG. 12, the rib 302 has a running surface 385 formed on the upper side on which the roller 354 of the connecting block 350 runs. Also, rib 30
Other ribs 386 in addition to 2 may be provided on the pressure tube 303 to receive the curtain 387.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing the first embodiment of the device of the present invention in a state before connection, FIG. 2 is a cross-sectional view taken along the line, FIG. 5 is a vertical sectional view showing the state in which the connection is released, FIG. 6 is an exploded perspective view showing the components of the discharge section, and FIG. 7 is an example of application of the device. 8 is a perspective view showing the second embodiment. FIG. 9 is a perspective view showing the third embodiment.
FIG. 0 is a longitudinal sectional view showing the fourth embodiment, FIG. 11 is a longitudinal sectional view showing the fifth embodiment, FIG. 12 is a longitudinal sectional view showing the discharge part in the sixth embodiment, and FIG. 13 is the same. FIG. 14 is an enlarged sectional view taken along the line - in FIG. 13, FIG. 15 is a longitudinal sectional view showing the pressure pipe with the discharge part assembled, and FIG. 16 is a longitudinal sectional view showing the connecting means. FIG. 17 is a partially cutaway front view showing the conventional example, and FIG.
Figure 8 is a cross-sectional front view showing the connecting state of the connecting pipe.
FIG. 9 is a sectional view taken along the - line in FIG. 18. In the figure, 1,201,303...pressure pipe, 4,
202,314...Discharge port, 5,317...On-off valve, 242...Occluded membrane (on-off valve), 3,247
a, 321...actuating part, 10, 60, 70, 35
0... Connection block, 100, 200, 30
0...Discharge part, 41,361...Hose (branch pipe), 12,360...Branch path, 15,77,3
82...Elastic membrane (sealing means), 18,356...
...Swinging arm, 22...Pressure key, 67...Rod, 21,251,351...Permanent magnet, 73...
…lever.

Claims (1)

[Scope of Claims] 1. A pressure pipe for transferring pressurized fluid is provided with a plurality of discharge portions each having a discharge port that opens at appropriate intervals and an on-off valve that opens and closes the discharge port, and the outer periphery of the pressure pipe. A connecting block body having a branch passage to which the branch pipe is connected is slidably supported in the axial direction and moved to a connecting position where the branch passage and the discharge port communicate with each other and a non-coupling position where both are blocked. The opening/closing valve is provided with a closing means for biasing the valve toward the discharge port toward the closing side, and an operating portion made of a magnetic material that constitutes a passive side of the opening means is provided, and the block body is provided with a closing means for biasing the valve toward the discharge port toward the closing side. When the valve is moved to, the connecting branch passage, a sealing means for sealing the flow passage formed between the discharge ports from the outside, and a free end facing the operating part of the on-off valve, and an active part of the opening means for the valve. A swinging arm constituting the side, and an operating member for moving the free end of the swinging arm in a direction away from the actuating section, a permanent magnet provided at the free end of the swinging arm, and a permanent magnet connected to the operating section. A device for detachably connecting a branch pipe to a pressure pipe which constitutes a magnetic opening/closing means for an on-off valve. 2. The device according to claim 1, wherein the sealing means forms a pressure chamber between the branch path and the discharge port, and an elastic membrane with a through hole is provided in the pressure chamber. 3. The device according to claim 2, wherein the pressure chamber is provided with a relief hole through which the pressure chamber is closed via a closing member provided on the swing arm. 4. The device according to claim 1, wherein the operating member comprises a frame rod that fits loosely around the outer periphery of the pressure pipe. 5. The device according to claim 1, wherein the operating member comprises a rod connected to a swinging arm and extending away from the pressure pipe. 6. The apparatus according to claim 1, wherein said operating member comprises a lever pivotally mounted on a connecting block body and engaged with a swinging arm to operate as a lever. 7. The above-mentioned patent, wherein the branch passage is provided in the swinging arm and communicates with the discharge port through a passage in the swing arm, while the operating member is a hose as a branch pipe connected to the branch passage. Claim 1
Apparatus described in section. 8. The device according to claim 1, wherein the on-off valve comprises a blocking membrane corresponding to the discharge port. 9. Claim 1, wherein the discharge part is independent and is supported by an insert plate that is removably fitted into the insertion hole of the pressure pipe and is removably attached to the pressure pipe via a snap spring. Apparatus described in section.