JP2018115436A - Grating detachment preventive device for water collecting port of drainage channel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a grating detachment preventive device for a water collecting port of a drainage channel which has a simple structure, can easily be miniaturized and can be also adapted to a narrow grating.SOLUTION: The grating detachment preventive device for a water collecting port of a drainage channel comprises: a hook member 13 which is made of a plate material having a thickness that is rotatable between mutually adjacent main members and which is rotatably supported around a support shaft 14 having an upper end portion thereof penetrated through a main member 7, and a removing tool engaging portion 19 having a shape recessed upward at the lower end edge, in which the hook member 13 is integrally formed with a hook portion 16 which enters under a hook engaging portion 18 provided in a grating receiver 3 to engage with the hook engaging portion, and the removing tool engaging portion is penetrated right and left at a lower end edge and fixes a projecting preventive tool 20 whose total length is longer than the interval between the main members 7 and 7.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a drainage catching stop device for a drainage channel for preventing a grating fitted in a catchment port of a drainage channel installed in a U-shaped groove on the side of a road, around a building, or in a park or the like.

  Conventionally, a grating is detachably installed at a water collection port formed in a groove cover of a drainage channel such as a U-shaped groove or the like used for a side groove of a road or an opening portion of a water collection tank. In addition, a plastic drain pipe is used as a drainage channel, and a vertical water pipe is connected to an elongated opening opened on the upper surface of the drain pipe, and the water collecting pipe is narrow at the upper end (about several centimeters in width). ) Is buried in the ground with the water outlet exposed on the road surface, and there is a drainage facility that has a structure in which an elongated grating of a size that fits the water outlet is detachably fitted (for example, patent) Reference 1).

  Conventionally, since the grating for the water collecting opening of the road side ditch may be lifted off due to the impact when the vehicle is passing, the anti-separation device is used.

  In addition to fixing the grating using bolts to the frame-shaped creating receptacle embedded with a groove lid or water catchment, this detachment prevention device is automatically detached by fitting the grating into the grating receptacle. A structure that can be stopped has been developed.

  As this type of anti-slip device, the non-slip claw is biased in the pushing direction by a spring in the grating, and the nail holder is formed in the grating so that the non-slip claw enters the lower side. A structure is known in which a latching claw is pushed in by a ratchet structure by fitting a grating and protrudes downward at a position passing through a claw receiving portion. (For example, patent document 2).

JP 2009-243185 A Utility Model Registration No. 3192428

  Conventionally, drainage facilities using narrow gratings as shown in Patent Document 1 are often installed on parts other than the roadway, for example, around the site of buildings or other plazas and on sidewalks. The anti-separation device has not been used because it does not receive an impact due to traffic, but in recent years, the weight of this type of grating has progressed, and it is becoming a structure that easily lifts even with a small impact.

  In addition, in the structure that is prevented from coming off by mounting the grating as shown in Patent Document 2 in the grating receptacle, the shape is large and the size is reduced so that it can be used for narrow grating. Therefore, it is difficult to reduce the size beyond a certain level due to restrictions such as the strength of the material, and it is easily corroded because it is exposed to rainwater or, in some cases, non-freezing material, and there is a problem in durability.

  In view of such a conventional problem, the present invention provides a grating release prevention device for a drainage drain outlet that has a simple structure, can be easily downsized, has high durability, and can be applied to narrow gratings. It was made for the purpose of provision.

  A first feature of the present invention for solving the conventional problems as described above is that a plurality of main members are fixed in parallel to each other between the end plates, and the cross is fixed by penetrating the main members in a crossing manner. Thickness that is rotatable between main members adjacent to each other in the drainage drainage catching device for drainage drainage that prevents the grating having a bar from slipping off the grating receptacle at the periphery of the catchment port in which the grating is fitted. The brazing material is supported so as to be rotatable around a support shaft whose upper end is penetrated by the main member, and the brazing material is provided in the grating receiver. The hook part that enters under the hook engaging part and engages with the hook part is integrally formed in a shape in which the front edge side of the hook material is cut out, and the entire length is between the main members by penetrating left and right through the lower edge. Bar length longer than The pop-out preventing device is fixed, and has a disengagement member engaging portion that is recessed upward at the lower end edge, and the flange portion is caused by a rotational moment about a support shaft due to its own weight. Is biased toward the hook engaging portion.

  The second feature of the present invention is that, in addition to the first feature, a plurality of ridges directed in the thickness direction of the saddle plate are formed in parallel on the engagement surface of the saddle material.

  According to a third feature of the present invention, in addition to the first or second feature, the base end side is pivotally attached to the back side of the lower end portion of the saddle member so as to be rotatable by a support shaft. An engaging recess that engages with the crossbar is formed on the back side of the detent piece, and the detent piece is rotated to the extending direction side of the saddle member. By engaging the engaging recess with the cross bar, the saddle member is maintained in a state where the saddle member of the saddle member is disengaged from the saddle engaging portion of the grating receiver.

  According to a fourth feature of the present invention, in addition to any one of the first to third features, the hook receiving portion of the grating receiver is a grating receiving bar provided integrally in the width direction of the grating receiver. There is.

  According to the present invention, the drainage-preventing grating draining prevention device includes a saddle made of a plate material having a thickness that can be rotated between adjacent main members, as in the first feature. The material is supported so as to be rotatable about a support shaft whose upper end is penetrated by the main member, and the material enters the collar engaging portion provided in the grating receiver and engages with the collar. The hook part is integrally formed in a shape in which the front edge side of the saddle member is cut out, and penetrates left and right at the lower end edge so that the full length is longer than the interval between the main members. Is attached to the lower end edge of the hook, and the hook is engaged with the hook by a rotational moment about a support shaft caused by the weight of the hook. Grating is done by energizing the part side. After the buttock is automatically inserted under the heel engagement section simply by fitting it into the receiver, the retaining state is maintained by the rotational moment due to the overall weight including the ridge material, and the grating jumps up due to vehicle traffic, etc. Is prevented.

  Further, the saddle material can be easily formed by cutting the plate material, and even if some external force acts on the saddle material and rotates in the disengagement direction, there is a pop-out prevention device made of a rod-like material longer than the interval between the main members. Therefore, the dredging material does not pop out higher than the surface of the grating, it is safer, and the pop-out prevention tool also serves as a weight to urge the dredging material in the direction to prevent it from coming off. It will increase.

  According to the present invention, as described in the second feature, a plurality of ridges directed in the thickness direction of the ridge material plate are formed in parallel on the engagement surface of the ridge material. By engaging with the edge of the heel engaging portion, the anti-detachment action of the grating receiver on the heel engaging portion is enhanced even by movement in the grating detaching direction.

  As in the third feature, the present invention includes a detent piece whose base end side is pivotally attached to a back side of the lower end portion of the saddle member so as to be rotatable by a support shaft. An engagement recess that engages with the crossbar is formed on the back side of the tip of the piece, and the engagement recess is turned into the crossbar by rotating the detent piece toward the extending direction of the saddle. By engaging, the saddle member is maintained in a state in which the saddle portion of the saddle member is disengaged from the saddle engaging portion of the grating receiver, so that the three retaining devices for one grating are provided. Even if one person cannot perform the removal operation at the same time as in the case of the installation described above, the removal operation is sequentially performed by one removal tool by performing the removal operation sequentially for each one of the detent devices and detenting with the stop piece. Is possible.

  According to the present invention, as described in the fourth feature, the flange engaging portion of the grating receiver is a grating receiving bar integrally provided in the width direction of the grating receiver, so that the reinforcement when the grating is thinned is provided. The member can be used also as the hook engaging portion, and it is not necessary to install a hook engaging portion for preventing the detachment.

It is a top view which shows 1st Example of the grating detachment prevention apparatus for drainage ports of the drainage channel which concerns on this invention. It is a longitudinal cross-sectional view same as the above. It is a longitudinal cross-sectional view which shows the grating removal | desorption state same as the above. It is an enlarged plan view of a grating detachment preventing device portion. It is the longitudinal cross-sectional view. It is an enlarged plan view which shows the saddle member position at the time of attachment / detachment in 1st Example. It is the longitudinal cross-sectional view. It is a side view of the removal tool used for the grating attachment or detachment of the grating detachment preventing device according to the present invention. It is the same front view. It is a top view which shows 2nd Example of the grating detachment prevention apparatus for the water collection outlets of the drainage channel which concerns on this invention. It is a longitudinal cross-sectional view same as the above. It is a longitudinal cross-sectional view which shows the grating removal | desorption state same as the above. It is an enlarged plan view at the time of the grating detachment prevention state same as the above. It is the longitudinal cross-sectional view. It is an enlarged plan view which shows the saddle member position at the time of attachment / detachment in 2nd Example. It is the longitudinal cross-sectional view.

  Next, a first embodiment of the present invention will be described with reference to FIGS.

  This embodiment shows a case where it is used in a narrow grating 2 having a total width of about 3 to 5 cm used for a narrow water collecting port 1 used for a water collecting port of a drainage channel such as a plastic drain pipe. .

  The water collecting port 2 is provided with a metallic grating receiver 3 having an L-shaped cross section on the inner peripheral surface thereof, and is prevented from slipping out by embedding an anchor 4 on the back surface in the pavement concrete 5.

  The grating receiver 3 is formed of an angle material having an L-shaped cross section composed of a horizontal side portion and a vertically-oriented piece portion, and the horizontal side portion is directed to the inner peripheral side. The peripheral edge is placed on the L-shaped horizontal side of the grating receiver 3 so as to be fitted.

  A grating receiving bar 3b extending in the width direction is integrally spanned at a predetermined interval between two long sides 3a, 3a facing in the length direction of the grating receiver 3, and a grating is formed thereon. 2 is supported, and the downward load on the grating 2 is dispersed by the presence of the grating receiving bar 3b, so that the bending moment with respect to the grating 2 is reduced. As a result, the thickness of the grating 2 (beam back) Can be made low and lightweight.

  The grating 2 is in the shape of an elongated plate and has a large number of main members 7 arranged in parallel at predetermined intervals with the width direction thereof being directed up and down, and a pair of parallel members in which end portions of the main members 7 are welded. And an end plate 8 and a rod-like cross bar 9 that is passed through the main member 7 in a direction perpendicular to the main member 7.

  A grating detachment prevention device 12 is provided between the main members 7 and 7 at both ends of the grating 2 and in the center portion in the width direction.

  The grating detachment preventing device 12 includes a saddle member 13 formed by cutting a plate material having a thickness smaller than an interval between adjacent main members 7 and 7, and the saddle member 13 with respect to the adjacent main members 7 and 7. The support shaft 14 is provided so as to pass through in a direction perpendicular to the support shaft 14, and the support member 14 is supported by the support shaft 14 so as to be rotatable between the main members 7 and 7.

  The flange 13 has a bearing hole 15 at the upper end, and is formed in a shape in which the flange 16 is cut to the front edge side of the flange 13 by being shifted to the upper half side of the flange 13 on the lower side thereof. . The flange portion 16 has an upward engagement surface 17.

  On the engagement surface 17, a large number of ridges 17 a having a mountain-shaped cross section are continuously arranged in a direction orthogonal to the rotation direction of the collar 13, that is, in a direction parallel to the thickness direction of the collar 13. The protrusion 17a is engaged with the edge 18a of the hook engaging portion 18 when the protrusion 17a is prevented from coming off. In this example, the hook engaging portion 18 is the grating receiving bar 3b of the grating receiver 3, and the hook engaging portion 18 is used.

  The lower half of the saddle member 13 is formed in a square shape, and a removal tool engaging portion 19 formed of a downward recessed portion is formed at the lower end edge portion.

  A pop-out prevention tool 20 is fixed to a lower end portion of the saddle member 13 at a position adjacent to the removal tool engaging portion 19. The pop-out preventing tool 20 prevents the bridging material 13 from protruding above the upper surface of the grating 2 when the bridging material 13 is rotated in a direction away from the hook engaging portion 18.

  The pop-out prevention tool 20 uses a bar material through which the bridging material 13 penetrates. This bar is formed longer than the interval between the main members 7, 7, and both ends protrude from both sides of the brazing material 13, which hits the lower edge of the main member 7, thereby further raising the brazing material 13 to the upper side. The rotation is prevented.

  In a state where the pop-out preventing device 20 is in contact with the lower edge of the main member 7, the size of the padding 13 and the pop-out preventing device 20 are such that the side edge portion of the brazing material 13 is located below the upper edge of the main member 7. The fixed position is selected.

  The saddle member 13 is urged in a direction in which the saddle portion 16 enters under the saddle engaging portion 18 by a rotational moment about the support shaft 14 due to the weight including the weight of the pop-out preventing device 20 described above. It has become.

  In addition, the front side piece part below the collar part 16 of the collar member 13 is an inclined surface 22 inclined rearward. When the collar member 13 is in its natural hanging state under its own weight, the lower end of the inclined surface 22 is By forming the grating 2 so as to be in a position retracted from the engaging portion 18 and lowering the grating 2 into the grating receiver 3 from the natural hanging state, the inclined surface 22 is pushed by the rod engaging portion 18, When the engagement surface 17 reaches the lower side of the hook engaging portion 18, the engagement surface 17 is rotated by its own weight, and the engagement surface 17 is below the hook engaging portion 18. You may make it become what is called a ratchet structure which enters and will be in the state of preventing from coming off.

  For example, a removal tool 25 as shown in FIGS. 8 and 9 is used to attach and detach the grating 2 in the non-detachment state to the grating receiver 3. The remover 25 has a main body portion 26 made of a plate material having a thickness that enters between the main members 7 and 7 of the grating 2, and the tip of the main body portion 26 is tapered, and this is formed into a U-shape. It has the engaging claw part 27 of the folded shape. On the other end side of the main body portion 26, a rod-like handle 28 is provided in succession through the main body portion 26.

  In use, a finger is put on the handle 28, the engaging claw portion 28 is inserted between the main members 7, 7 of the grating 2, and the engaging claw portion 27 is hooked on the remover engaging portion 19 and pulled up. By this operation, the saddle member 13 is rotated to the side away from the saddle engaging portion 18 and is further lifted in a state where the pop-out prevention tool 20 is in contact with the lower surface of the main member 7, thereby lifting the grating 2 and the grating receiver 3. Insert inside. By removing the removal tool 25 after the insertion, the saddle member 13 is rotated by its own weight toward the saddle engaging portion 18 side and is prevented from coming off.

  Further, when the grating 2 is removed from the grating receiver 3, the engaging claw portion 28 of the removing tool 25 is inserted between the main members 7 of the grating 2, and the engaging claw portion 27 is hooked on the removing tool engaging portion 19. Pull up. By this operation, the saddle member 13 is rotated to the side away from the saddle engaging portion 18, and is further lifted in a state where the pop-out preventing tool 20 is in contact with the lower surface of the main member 7.

  Next, a second embodiment of the present invention will be described with reference to FIGS.

  This example shows a case in which it is used as a U-shaped groove or a drainage basin for a wide grating 2A as compared with the first embodiment. In addition, the same code | symbol is attached | subjected to the same part as 1st Example, and duplication description is abbreviate | omitted.

  In this example, the grating detachment preventing device 12A is provided at the four corners of the square-shaped grating 2A. The saddle member 13 of this grating detachment preventing device 12A is the same as that of the first embodiment, but the saddle engaging portion 18 with which this saddle member 13 is engaged is the frame-like frame portion 31 of the grating receiver 3, When the flange portion 16 of the material 13 enters under the inner peripheral edge portion of the frame portion 31 of the grating receiver 3, the protrusion 17 a on the upper surface of the flange portion is engaged with the edge 31 a below the inner peripheral edge of the frame portion 31. Yes.

  When the concrete portion 32 for embedding the grating receiver 3 is placed, the hook engaging portion 18 has a shape member (not shown) placed under the frame portion 31, and the concrete shape is fixed after the concrete is solidified. It can be formed by forming a space in which the brazing material 13 can enter under the frame part 31 by removing.

  In this example, a detent piece 32 is provided that can maintain the disengaged state of the scissors 13 that have been rotated to the side to be removed from the scissors engaging portion 18.

  The detent piece 32 is rotatably attached by a support shaft 33 at a position where the base end side is shifted to the back side of the lower end portion of the saddle member 13. An engaging recess 34 that engages with the crossbar 9 is formed on the side.

  As shown in FIGS. 12, 15, and 16, the engaging recess 34 is engaged with the crossbar 9 in a state in which the brazing material 13 is rotated in the removing direction, thereby bringing the brazing material 13 toward the grating detachment prevention side. The rotation is prevented, so that the four grating release prevention devices 12 can be sequentially released one by one.

  The detent piece 32 has a pair of vertical plate portions 32a and 32a attached to the side surface of the saddle member 13 and a bridge portion 32b straddling between the upper end portions of both vertical plate portions. The cross-section is U-shaped at the position of the bridge portion 32b, and the bridge portion 32b abuts against the edge of the back side of the saddle member 13 as shown in FIG. It is designed to be folded.

  When the grating 2A is mounted on the grating receiver 3, as shown in FIGS. 12, 15, and 16, the detent pieces 32 of all the grating detachment preventing devices 12A are engaged with the crossbar 9, and the brazing material 13 is attached. It is inserted into the grating receiver 3 in a state where it is rotated to the side to be removed from the hook engaging portion 18. After the insertion, the detent piece 32 is removed from the cross bar 9 so that the saddle member 13 is rotated to the anti-separation side by its own weight, and the grating anti-desorption state is obtained.

  Removal of the grating 3 inserted into the grating receiver 3 and prevented from coming off is performed by inserting the engaging claw portion 28 of the removing tool 25 between the main members 7 of the grating 2A and engaging with the removing member engaging portion 19. Pull the pawl portion 27 up. By this operation, the saddle member 13 is rotated to the side away from the saddle engaging portion 18, and the engagement concave portion 34 of the detent piece 32 is engaged with the cross bar 9 to release the detachment prevention state by the saddle member 13. This is performed by all the grating detachment prevention devices 12A, and the grating 2A is removed in a state where all the detachment preventions are released.

DESCRIPTION OF SYMBOLS 1 Water collecting port 2, 2A Grating 3 Grating receptacle 3a, 3a Long side 3b Grating receptacle 4 Anchor 5 Pavement concrete 7 Main member 8 End plate 9 Cross bar 12, 12A Grating separation prevention device 13 Anchor 14 Support shaft 15 Bearing hole 16 １７ part 17 engagement surface 17a ridge 18 鉤 engagement part 18a edge 19 removal tool engagement part 20 pop-out prevention tool 22 inclined surface 25 removal tool 26 body part 27 engagement claw part 28 handle 31 frame part 32 detent piece 32a Vertical plate portion 32b Bridge portion 33 Support shaft 34 Engaging recess

Claims (4)

A plurality of main members are fixed in parallel to each other between the end plates, and a grating having a cross bar fixed so as to penetrate through the main members is disposed on the periphery of the water collecting port in which the grating is fitted. In the grating detachment prevention device for the drainage outlet of the drainage channel
It is provided with a saddle made of a plate material of a thickness that can be rotated between adjacent main members,
The brazing material is supported so as to be rotatable around a spindle that has an upper end portion penetrated by the main member,
The saddle member is formed integrally with a saddle portion that enters under and engages with the saddle engaging portion provided in the grating receptacle in a shape in which the front edge side of the saddle member is cut out, and has a lower end edge. Is fixed to a pop-out preventer made of a rod-like material that has a total length that is longer than the interval between the main members, and has a removal tool engaging portion that is recessed upward at the lower end edge,
A grating drainage prevention device for a drainage outlet of a drainage channel, wherein the saddle portion is biased toward the saddle engaging portion side by a rotation moment about a support shaft due to its own weight.   2. The grating release prevention device for a drainage outlet according to claim 1, wherein a plurality of protrusions directed in the thickness direction of the saddle plate are formed in parallel on the engagement surface of the saddle material.   A detent piece having a proximal end pivotably attached by a support shaft is provided at a position close to the rear side of the lower end portion of the saddle member. An engagement recess that engages with the bar is formed, and by rotating the detent piece to the extending direction side of the saddle and engaging the engagement recess with the cross bar, the saddle is The grating release prevention device for a drainage outlet according to claim 1 or 2, wherein a saddle portion of the saddle material is maintained in a state of being disengaged from the saddle engaging portion of the grating receiver.   4. The grating detachment preventing device for a drainage outlet according to claim 1, wherein the hook engaging portion of the grating receptacle is a grating receptacle provided integrally in the width direction of the grating receptacle. 5.

Images