JP6788859B1 - Antifouling pipeline valve suitable for attachment and detachment - Google Patents

Abstract

The antifouling pipeline valve suitable for attachment / detachment according to the present invention includes a valve body and water inlet pipes and water outlet pipes fixed to both ends of the valve body, respectively, and the inner end pipe wall of the water inlet pipe has a valve body. At least one pair of fixed structures that exhibit a symmetrical relationship, one sealing structure, and two conflicting structures that exhibit a corresponding relationship are attached in sequence along the direction of travel, and the fixed structure is an external drainage pipe. Is for fixing the inside of the water inlet pipe, the sealing structure is for sealing the gap between the external drainage pipe and the water inlet pipe, and the conflicting structure is for external drainage sewage. It is intended to reinforce the fixation between the pipe and the water pipe, and all fixing structures are rotatably connected to the mounting groove provided at the inner end of the water pipe by a rotating shaft. The rotating block includes a plurality of engaging teeth attached to the side surface of the rotating block near the water pipe, and a positioning member for positioning one end of the rotating block on the opposite side of the rotating shaft. An expansion / contraction member that expands / contracts the engaging teeth is connected to the rotating block. In the present invention, the installation and removal of the external sewage pipe into the water inlet pipe can be completed by a simple operation, and the time for installing and removing the valve body can be significantly reduced. It is highly convenient because no other external equipment is used separately.

Description

The present invention relates to a valve, and particularly to an antifouling pipeline valve suitable for attachment / detachment.

A valve is a device that controls the direction, pressure, and flow rate of a fluid in a fluid system, allowing the flow and stop of media (liquid, gas, powder, etc.) in pipes and devices, and controlling the flow rate. It is a device. Valves are used as a control means in fluid transport pipeline systems to modify the cross-sectional area of passages and the flow direction of media, eg fluid guidance, blocking, etc.
It has functions such as throttle, check, branch or overflow pressure release. Valves used for fluid control vary in type and specification, from simple shut-off valves to various types of valves used in highly complex automated control systems. The nominal diameter of the valve varies from an extremely small instrument valve to a large industrial pipeline valve with a diameter of 10 m. Valves can be used to control the flow of various types of fluids such as water, water vapor, oil, gas, muddy water, various types of corrosive media, liquid phase metals and radioactive fluids. The operating pressure of the valve can be from 0.0013 MPa to an ultra-high pressure of 1000 MPa, and the operating temperature can be from an ultra-low temperature of 270 ° C to a high temperature of 1430 ° C.

In the field of sewage discharge in the printing industry, it is often used to control the discharge of sewage by attaching a valve to the end of an external wastewater pipe. A general valve is attached to or removed from the drainage pipe, which is complicated to operate, and it is common to use a separate tool or screwdriver.
It's very inconvenient. In addition, after long-term use, leakage inconvenience may occur at the connection point, which may cause contamination to the outside.

An object of the present invention is to provide an antifouling pipeline valve suitable for attachment / detachment (convenient for attachment / detachment). By providing a fixed structure in the valve, the valve body can be attached simply by a simple operation.
And can be controlled to remove. By the fixing operation of the fixed structure, the sealing structure and the conflicting structure can be further driven. As a result, triple fixing of the external antifouling pipeline is effectively realized. It is possible to improve the mounting reliability and reduce the mounting and dismounting time of the valve body without using other external fixtures separately. In addition, since it can have a good sealing effect and is a flow, sewage cannot easily flow out and does not cause contamination.

In order to solve the above problem, the following technical plan will be adopted.
Antifouling pipeline valves suitable for attachment and detachment
A valve body and at least a pair of water inlet pipes and water outlet pipes fixed to both ends of the valve body, and the inner end pipe walls of the water inlet pipes are sequentially symmetrical along the direction toward the valve body. A fixed structure, one sealing structure, and two conflicting structures that exhibit a corresponding relationship are attached, and the fixed structure is for fixing the external drainage sewage pipe to the inside of the water inlet pipe. The sealing structure is for closing the gap between the external drainage pipe and the water inlet pipe, and the conflicting structure is for reinforcing the fixing between the external drainage pipe and the water inlet pipe. Yes,
All fixed structures are mounted on the mounting groove provided at the inner end of the water pipe, the rotating block rotatably connected in the mounting groove by the rotating shaft, and the side surface of the rotating block near the water pipe. A telescopic member that expands and contracts the engaging tooth is connected between the engaging tooth and the rotating block, including a plurality of engaging teeth and a positioning member that positions one end of the rotating block opposite to the rotating shaft. Will be done.

Preferably, the positioning member includes a fixed block fixed to one end of the rotating block near the water pipe, an engaging groove opened in the water pipe and engaged with the fixed block, and a side surface of the fixed block opposite to the telescopic member. The fitting groove to be opened in, the insertion rod inserted in the fitting insertion groove, the first compression spring fixed to the insertion fitting and the inner end of the fitting insertion groove, the button to push the insertion groove, and the button. Includes an insertion hole that limits the movement only in the lateral direction and allows the engagement groove to communicate with the outside.

Preferably, the side surface of the rotating block near the telescopic member is the first arc surface, the arc surface circular center of the first arc surface is located at the axis of the rotation axis, and the side surface of the mounting groove near the rotating block is. The second arc surface is set to match the first arc surface, and the distance between the first arc surface and the second arc surface is smaller than the tooth height of the engaging tooth. The side surface of the mounting groove near the rotating block may be aligned with the first arc surface. The second arc surface may have a corresponding, contacting, or facing relationship. Moreover, the invasion of contaminants is reduced by shielding the openings on the inner wall side of the water inlet pipe of the first arc surface and the second arc surface with the engaging teeth. This makes it difficult for contaminants to accumulate between the first arc plane and the second arc plane. As a result, when the amount of contaminants increases, the rotating block is locked, and it is possible to prevent the rotating block from being unable to rotate.

Preferably, the engaging tooth side of the second arc surface is an inclined slope that matches the side surface of the engaging tooth, the gap between the inclined slope and the outermost left engaging tooth is made smaller, and the oblique slope and the outer side of the engaging tooth are made smaller. The area of contact with the side surface can be made larger. As a result, the engaging teeth can be pressed to compress the second compression spring, the gap can be reduced, and the probability of contamination intrusion is reduced.

Preferably, the telescopic member includes a T-shaped block fixed to the bottom end of the engaging tooth and a limiting sliding groove provided in the rotating block so that the T-shaped block can slide linearly and prevent its detachment. , Includes a second compression spring fixed between the T-block and the bottom edge of the limiting slip groove, and by making the groove depth of the limiting sliding groove larger than the tooth height of the engaging tooth, the engaging tooth Can be completely stored in the limiting sliding groove, and it becomes easy to move away from the outside of the rotating block.

Preferably, the sealing structure is perpendicular to the ring-shaped air storage groove provided inside the water inlet, the ring-shaped sliding plate that slides inside the air storage groove, and one end of the ring-shaped sliding plate near the rotating block. A thruster fixed to the water pipe, a first tension spring fixed between the left end of the annelid sliding plate and the groove wall of the air storage groove, an annelid ring-shaped rubber ring attached to the inner wall of the water inlet pipe, and storage. Includes a vent that communicates the air groove with the inside of the rubber ring. The ring-shaped sliding plate can be repositioned by the first tension spring.

Preferably, the conflicting structure is formed in a conflicting rod fixed to one end opposite to the thrust of the ring-shaped sliding plate, a lateral groove provided in the water inlet pipe to allow the conflicting rod to move only in a straight line, and a water inlet pipe. It includes a sliding hole that communicates the inside of the water pipe and the lateral groove, a sandwich plate that slides in the sliding hole, and a second tension spring that fixes both ends to the sandwich plate and the inner wall of the sliding hole, respectively, and the sandwich plate and the conflicting rod face each other. All surfaces are slopes.
The sandwich plate can be repositioned by the second tension spring.

Preferably, an antifouling structure for blocking the invasion of large granule impurities in the sewage is detachably attached to one end of the water outlet on the opposite side to the valve body. This prevents the inconvenience of difficult treatment due to the direct discharge of large amounts of cotton-like impurities in sewage.

Preferably, the antifouling structure comprises a protective cover installed at the outer end of the water pipe, a horizontal rod fixed between the inner walls of the protective cover, and a cross-shaped pin rotatably connected to the horizontal rod. A hopper-shaped filter net is fixed between the inner walls of the protective cover, including an impeller and squeegee fixed to the upper and lower ends of the shaft and the pin shaft, and a brush is provided on the side surface of the squeegee near the filter net to provide a protective cover. A plurality of connection holes are opened in the outer wall near the upper opening, and the protective cover can be attached to the outer end of the water discharge pipe by screwing a screw into the connection holes. When sewage is discharged from the drain pipe
The impeller is rotated by the impact force of sewage. The pin shaft rotates in synchronization with it. In conjunction with this, the squeegee cleans while rotating the surface of the filtration net. Effectively avoid inconveniences such as blocking the filtration net. Effectively guarantee the normal use of the filtration net.

Preferably, the tooth height of the engaging tooth is greater than the minimum distance between the rotating block and the inner wall of the water pipe.
That is, the upper end surface of the engaging tooth protrudes from the horizontal plane with the inner wall of the water pipe. As a result, when the external sewage pipe is installed in the water inlet pipe, it can be fixed by conflicting with the engaging teeth.

Compared with the prior art, the present invention has the following advantageous effects.
(I) In the present invention, the installation and removal of the external sewage pipe into the water inlet pipe can be completed by a simple operation, and the time for installing and removing the valve body can be significantly reduced. It is highly convenient because no other external equipment is used separately.
(Ii) In the present invention, multiple fixings can be provided by the fixing structure, the sealing structure and the conflicting structure. Therefore, the mounting reliability is greatly improved.
(Iii) In the present invention, since the sealing structure and the conflicting structure are driven and operated by the operation of the fixed structure, it is not necessary to operate them separately.
(Iv) In the present invention, the sealing structure not only fixes the external antifouling pipe, but also can seal the gap between the external drainage pipe and the water inlet pipe, reducing the leakage of sewage and providing good sealing. Can have an action.
(V) In the present invention, the rotating block can be positioned by using the positioning member, and the rotation of the rotating block at the time of fixing the external antifouling pipe line into the water inlet pipe is effectively prevented.
(Vi) In the present invention, the first arc plane and the second arc plane are provided so as to be aligned with each other, and the two arc planes are brought close to each other to reduce the gap. It is possible to prevent the influence on the smoothness of the movement.
(7) In the present invention, the inclination of the oblique slope and the left outer engaging tooth are the same. Therefore, by bringing the left outer engaging tooth and the oblique slope closer to each other, the engaging tooth is pressed and the second compression spring is compressed. Can be made,
This can reduce the gap and reduce the probability of contaminant intrusion.
(Viii) In the present invention, the engaging teeth are housed in the rotating block by using the telescopic member. This allows the rotating block to wrap around and away from it. Further, the elastic force of the second compression spring increases the adhesive force of the engaging tooth to the external antifouling pipe line.
(9) In the present invention, the antifouling structure is provided to filter the wastewater from the water outlet to effectively remove cotton-like substances in the sewage. This reduces the adverse effect on the treatment of subsequent processes due to the direct discharge of cotton-like substances in the sewage. In addition, at the same time as filtration, a blockage prevention treatment is performed to prevent the filter net from being blocked by cotton-like material. The antifouling structure is attached if necessary, and may be removed and adapted.
10. In the present invention, the tooth height of the engaging tooth is made larger than the minimum distance between the rotating block and the inner wall of the water pipe, that is, the upper end surface of the engaging tooth protrudes from the horizontal plane having the inner wall of the water pipe. As a result, when the external wastewater drainage pipe is installed in the water inlet pipe, it can be fixed by conflicting with the engaging teeth.

It is a perspective view which shows the structure in the rotating block of this invention. It is a block diagram at the place A of FIG. It is a structural sectional view in the water inlet pipe of this invention. It is a block diagram at the B location of FIG. It is a block diagram at the B1 place of FIG. It is a block diagram in the sealing structure and the conflict structure of this invention. It is a perspective view which shows the structure of this invention. It is a block diagram of the antifouling structure of this invention. [Description of code]

1 Valve body 2 Water inlet pipe 3 Water outlet pipe 4 Fixed structure 4a 1st arc surface 4b 2nd arc surface 41 Mounting groove 42 Rotating block 43 Engaging tooth 44 Rotating shaft 45 Positioning member 46 Telescopic member 451 Fixing block 452 Engaging groove 453 Insertion 454 First compression spring 455 Button 456 Insertion hole 461 T-type block 462 Second compression spring 463 Limitation sliding groove 5 Sealing structure 51 Air storage groove 52 Ring-shaped sliding plate 53 Thruster 54 First tension spring 55 Rubber ring 56 Vent 6 Conflict structure 61 Horizontal groove 62 Conflict rod 63 Sliding hole 64 Scissors plate 65 Second tension spring 7 Antifouling structure 71 Protective cover 72 Screw hole 73 Horizontal rod 74 Pin shaft 75 Squeegee 76 Impeller 77 Filter net

Hereinafter, description will be made with reference to the drawings of the embodiments of the present invention.
Example 1
As shown in FIGS. 1 to 8, the antifouling pipeline valve suitable for attachment / detachment includes a valve body 1, a water inlet pipe 2 and a water outlet pipe 3 fixed to both ends of the valve body 1, respectively. On the inner end pipe wall of the water inlet pipe 2, the valve body 1
At least a pair of fixed structures 4 exhibiting a symmetrical relationship, one sealing structure 5, and two conflicting structures 6 exhibiting a corresponding relationship are sequentially attached along the direction toward. The fixing structure 4 is for fixing the external drainage sewage pipe to the inside of the water inlet pipe 2. The sealing structure 5 is for sealing the gap between the external drainage sewage pipe and the water inlet pipe 2. The conflict structure 6 is for surely reinforcing the fixing between the external drainage pipe and the water inlet pipe 2.

All the fixed structures 4 have a mounting groove 41 provided at the inner end of the water inlet pipe 2 and a rotating shaft 44, respectively.
A rotating block 42 rotatably connected in the mounting groove 41, a plurality of engaging teeth 43 mounted on the side surface of the rotating block 42 near the water pipe 2, and a rotating shaft 44 of the rotating block 42. Includes a positioning member 45 that positions one end on the opposite side. An expansion / contraction member 46 that expands / contracts the engagement tooth 43 is connected between the engagement tooth 43 and the rotation block 42. The tooth height of the engaging tooth 43 is made larger than the minimum distance between the rotating block 42 and the inner wall of the water pipe 2, that is, the engaging tooth 4
The upper end surface of No. 3 protrudes from the horizontal plane having the inner wall of the water inlet pipe 2. As a result, when the external sewage pipe is installed in the water inlet pipe 2, it can be fixed by conflicting with the engaging teeth 43.

As shown in FIGS. 2 and 4, the positioning member 45 engages with a fixed block 451 fixed to one end of the rotating block 42 near the water pipe 2 and engaged with the fixed block 451 opened in the water pipe 3. At the groove 452, the fitting groove provided on the side surface of the fixing block 451 opposite to the telescopic member 46, the insertion spring 453 inserted in the insertion groove, the insertion rod 453, and the inner end of the insertion groove. It includes a first compression spring 454 to be fixed, a button 455 that pushes the insertion rod 453, and an insertion hole 456 that limits the button 455 to be movable only in the lateral direction and communicates the engagement groove 452 with the outside.

As shown in FIG. 5, the side surface of the rotating block 42 near the telescopic member 46 is the first arc surface 4a, and the arc surface concentric center of the first arc surface 4a is located on the rotation shaft 44. The side surface of the mounting groove 41 near the rotating block 42 is a second arc surface 4b that matches the first arc surface 4a, and the first arc surface 4a.
The distance between the first arc surface 4a and the second arc surface 4b is smaller than the tooth height of the engaging tooth 43, and smaller than the gap between the first arc surface 4a and the second arc surface 4b. In addition, the water inlet pipe 2 of the first arc surface 4a and the second arc surface 4b is provided by the engaging teeth 43.
By shielding the opening near the inner wall, the intrusion of contaminants is reduced. This makes it difficult for contaminants to accumulate between the first arc surface 4a and the second arc surface 4b. As a result, when the amount of contaminants increases, the rotating block 42 is locked, and it is possible to prevent the rotating block 42 from being unable to rotate. 2nd
The engaging tooth 43 side of the arc surface 4b is an inclined slope 4c that matches the side surface of the engaging tooth 43. As a result, the gap between the slope 4c and the outermost left engaging tooth 43 can be made smaller, and the contact area between the slope 4c and the outer surface of the engaging tooth 43 can be made larger. As a result, the engaging tooth 43 is pressed and the second
The compression spring 462 can be compressed, the gap can be reduced, and the probability of contamination intrusion is reduced.

As shown in FIG. 5, the telescopic member 46 is a T-shaped block 4 fixed to the bottom end of the engaging tooth 43.
61, a limiting sliding groove 463 opened in the rotating block 42, which allows the T-shaped block 461 to slide linearly and prevent its detachment, and a T-shaped block 461 and the bottom end of the limiting sliding groove 463. Includes a second compression spring 462 fixed in between. By making the groove depth of the limiting sliding groove 463 larger than the tooth height of the engaging tooth 43, the engaging tooth 43 can be completely housed in the limiting sliding groove 463 and rotates to the outside of the rotating block 42. It becomes easier to separate.

As shown in FIG. 6, the sealing structure 5 has a ring-shaped air storage groove 51 formed inside the water inlet pipe 2.
And the ring-shaped sliding plate 52 that slides inside the air storage groove 51, and the rotation block 42 of the ring-shaped sliding plate 52.
Attached to the inner wall of the water inlet pipe 2 and the thruster 53 which is fixed vertically to one end, the first tension spring 54 which is fixed between the left end of the ring-shaped sliding plate 52 and the groove wall of the air storage groove 51. It includes a rubber ring 55 having an air-core ring structure, and an air passage 56 that communicates the air storage groove 51 with the inside of the rubber ring 55. The ring-shaped sliding plate 52 can be repositioned by the first tension spring 54. The conflict structure 6 includes a conflict rod 62 fixed to one end of the ring-shaped sliding plate 52 on the opposite side to the thrust 53, a lateral groove 61 provided in the water inlet pipe 2 and allowing the conflict rod 62 to move only in a straight line, and a water inlet pipe. The inside of the water pipe 2 and the horizontal groove 6 opened in 2
It includes a sliding hole 63 through which 1 is communicated, a sandwich plate 64 that slides in the sliding hole 63, and a second tension spring 65 whose both ends are fixed to the sandwich plate 64 and the inner wall of the sliding hole 63, respectively. The facing surfaces of the sandwich plate 64 and the conflicting rod 62 are both slopes. The sandwich plate 64 can be repositioned by the second tension spring 65.

As shown in FIGS. 7 to 8, an antifouling structure 7 for blocking the invasion of large granular impurities in the sewage is detachably attached to one end of the water discharge pipe 3 on the opposite side to the valve body 1. This prevents the inconvenience of difficult treatment due to the direct discharge of large amounts of cotton-like impurities in sewage. The antifouling structure 7 is a horizontal rod 7 fixed between a protective cover 71 installed at the outer end of the water discharge pipe 3 and an inner wall of the protective cover 71.
3. Includes a pin shaft 74 having a cross section rotatably connected to a horizontal rod 73, an impeller 76 fixed to both upper and lower ends of the pin shaft 74, and a squeegee 75. A hopper-shaped filtration net 77 is fixed between the inner walls of the protective cover 71. A brush is provided on the side surface of the squeegee 75 near the filtration net 77. A plurality of connection holes 72 are opened in the outer wall near the upper opening of the protective cover 71. The protective cover 71 can be attached to the outer end of the water pipe 3 by screwing a screw into the connection hole 72. When the sewage is discharged from the water discharge pipe 3, the impeller 76 is rotated by the impact force of the sewage. The pin shaft 74 rotates in synchronization with it. In conjunction with this, the squeegee 75 cleans the surface of the filtration net 77 while rotating. Effectively avoiding inconveniences such as blocking the filtration net 77. Effectively guarantees the normal use of the filtration net 77.

In practical use, first, the rotation block 42 is rotated outward so that the engaging tooth 43 is located on the second arc surface 4b. Next, the external drainage sewage pipe is inserted into one end of the water inlet pipe 2 opposite to the valve body 1.
Then, the rotating block 42 may be pressed toward the side closer to the external drainage pipe. When pressed, the engaging tooth 43 slides along the second arc surface 4b in conjunction with the rotating block 42 and conflicts with the pipe wall of the external drainage pipe to fix it. Moreover, the elastic force of the second compression spring 462 further ensures this fixing. At this time, the fixing block 451 is inserted into the engaging groove 452, and the insertion rod 453 flies into the insertion hole 456 by the action of the first compression spring 454 and is fixed. As a result, the rotating block 42 can be prevented from turning to the outside. In addition, the button 455 is provided by the insertion rod 453.
To the outside. As a result, when the external drainage sewage pipe is removed, the button 455 is pressed to compress the first compression spring 454, and the insertion rod 453 in the insertion hole 456 is pushed out to release the fixed state. Further, since the first arc surface 4a and the second arc surface 4b are aligned, and the slope 4c and the outer surface of the engaging tooth 43 are aligned, the filth that unexpectedly enters the gap between the external sewage pipe and the water inlet pipe 2. However, the first arc surface 4a
It is difficult to stack the rotating block 42 between the two arc surfaces 4b and the second arc surface 4b, and it is possible to avoid affecting the rotation block 42 from locking in the mounting groove 41 and moving away from the rotating block 42.

When the rotating block 42 is pressed, the rotating block 42 pushes the thruster 53 to the right. The ring-shaped sliding plate 52 shifts to the right and pushes out the air in the air storage groove 51 to enter the rubber ring 55 through the air passage 56. The rubber ring 55 explodes and expands to fill the gap between the external drainage pipe and the water inlet pipe 2. Thereby, a good sealing effect can be achieved. Effectively avoid sewage leakage and prevent pollution. Further, if the rubber ring 55 expands, a partial fixing function of fixing the external wastewater pipe is also generated. When the ring-shaped sliding plate 52 moves to the right, the conflicting rod 62 also moves to the right, and the sandwich plate 64 is pushed to move to the external drainage pipe side, and is brought into contact with the outside of the pipe wall to be fixed in conflict. Further increase fixation certainty. Further, since the second tension spring 65 is pulling at this time, when the conflicting rod 62 is repositioned, the sandwich plate 64 can also be repositioned to the initial position by the elastic force of the second tension spring 65.

The above is only a better specific embodiment of the present invention, and the scope of protection of the present invention is not limited thereto.

Claims (10)

An antifouling pipeline valve suitable for attachment and detachment.
The valve body 1 includes a water inlet pipe 2 and a water outlet pipe 3 fixed to both ends of the valve body 1, respectively, and the inner end pipe wall of the water inlet pipe 2 is symmetrical in order along the direction toward the valve body 1. At least a pair of fixed structures 4 exhibiting a relationship, one sealing structure 5, and two conflicting structures 6 exhibiting a corresponding relationship are attached, and the fixed structure 4 connects the external drainage pipe to the water inlet pipe 2. The sealing structure 5 is for fixing the inside, the sealing structure 5 is for sealing the gap between the external drainage pipe and the water inlet pipe 2, and the conflicting structure 6 is for sealing the external drainage pipe. It is for reinforcing the strength of fixing between the water pipe 2 and the water pipe 2.
All the fixed structures 4 have a mounting groove 41 provided at the inner end of the water inlet pipe 2 and a rotating shaft 44, respectively.
A rotating block 42 rotatably connected in the mounting groove 41, a plurality of engaging teeth 43 mounted on the side surface of the rotating block 42 near the water pipe 2, and a rotating shaft 44 of the rotating block 42. A telescopic member 46 that expands and contracts the engaging tooth 43 is connected between the engaging tooth 43 and the rotating block 42, including a positioning member 45 that positions one end on the opposite side.
An antifouling pipeline valve that is suitable for attachment and detachment. The positioning member 45 includes a fixed block 451 fixed to one end of the rotating block 42 near the water inlet pipe 2, an engaging groove 452 opened in the water pipe 3 and engaged with the fixed block 451 and an expansion / contraction member of the fixed block 451. An insertion groove formed on the side surface opposite to the 46, an insertion rod 453 inserted in the insertion groove, a first compression spring 454 fixed to the insertion groove 453 and the inner end of the insertion groove, The attachment / detachment according to claim 1, further comprising a button 455 for pressing the insertion 杆 453 and an insertion hole 456 for limiting the button 455 so as to be movable only in the lateral direction and allowing the engagement groove 452 to communicate with the outside. Suitable antifouling pipeline valve. The side surface of the rotating block 42 near the telescopic member 46 is the first arc surface 4a, the arc surface circular center of the first arc surface 4a is located at the axial center of the rotating shaft 44, and the mounting groove 41 is closer to the rotating block 42. The side surface is the first arc surface 4
The attachment / detachment according to claim 1, wherein the second arc surface 4b to be matched with a is used, and the distance between the first arc surface 4a and the second arc surface 4b is smaller than the tooth height of the engaging tooth 43. Antifouling pipeline valve. The claim is characterized in that the engaging tooth 43 side of the second arc surface 4b is an inclined slope 4c that matches the side surface of the engaging tooth 43, and the gap between the inclined slope 4c and the outermost left engaging tooth 43 is smaller. The antifouling pipeline valve suitable for attachment / detachment according to item 1. The telescopic member 46 includes a T-shaped block 461 fixed to the bottom end of the engaging tooth 43 and a rotating block 4.
A third sliding groove 463, which is opened in 2 and can slide the T-shaped block 461 in a straight line and prevent its detachment, and is fixed between the T-shaped block 461 and the bottom end of the limiting sliding groove 463. The antifouling pipeline valve according to claim 1, further comprising two compression springs 462 and having a groove depth of the limiting sliding groove 463 larger than the tooth height of the engaging tooth 43. The sealing structure 5 has a ring-shaped air storage groove 51 opened inside the water inlet pipe 2, a ring-shaped sliding plate 52 that slides inside the air storage groove 51, and a ring-shaped sliding plate 52 that is closer to the rotation block 42. The first one fixed between the thruster 53 fixed perpendicularly to one end and the left end of the ring-shaped sliding plate 52 and the groove wall of the air storage groove 51.
1. A claim 1 comprising a tension spring 54, an air-core ring-shaped rubber ring 55 attached to the inner wall of the water inlet pipe 2, and a ventilation passage 56 that communicates the air storage groove 51 with the inside of the rubber ring 55. Antifouling pipeline valve suitable for attachment / detachment as described in. The conflict structure 6 includes a conflict rod 62 fixed to one end of the ring-shaped sliding plate 52 on the opposite side to the thrust 53, and a lateral groove 61 opened in the water pipe 2 so that the conflict rod 62 can be moved only in a straight line. A sliding hole 63 opened in the water pipe 2 and communicating the inside of the water pipe 2 with the lateral groove 61, and a sandwich plate 64 sliding in the sliding hole 63.
And a second tension spring 65, both ends of which are fixed to the inner wall of the sandwich plate 64 and the sliding hole 63, respectively.
The antifouling pipeline valve according to claim 6, wherein the opposite surfaces of the sandwich plate 64 and the conflicting rod 62 are both inclined surfaces. The first aspect of claim 1, wherein an antifouling structure 7 for blocking the intrusion of large impurities in the sewage is detachably attached to one end of the water discharge pipe 3 on the opposite side to the valve body 1. Antifouling pipeline valve suitable for attachment and detachment. The antifouling structure 7 includes a protective cover 71 installed at the outer end of the water discharge pipe 3, a horizontal rod 73 fixed between the inner walls of the protective cover 71, and a cross-section cross rotatably connected to the horizontal rod 73. Shaped pin shaft 74 and
A hopper-shaped filtration net 77 is fixed between the inner walls of the protective cover 71, including an impeller 76 and a squeegee 75 fixed to both upper and lower ends of the pin shaft 74, and a brush is provided on the side surface of the squeegee 75 near the filtration net 77. A plurality of connection holes 72 are opened in the outer wall near the upper opening of the protective cover 71, and the protective cover 71 is attached to the outer end of the water discharge pipe 3 by screwing a screw into the connection holes 72. The antifouling pipeline valve suitable for attachment / detachment according to claim 8. The antifouling pipeline valve according to claim 1, wherein the tooth height of the engaging teeth 43 is larger than the minimum distance between the rotating block 42 and the inner wall of the water inlet pipe 2.