KR19990081812A - manhole - Google Patents

Abstract

The present invention relates to a manhole that can be securely and firmly fixed to the lid to the manhole support in a simple structure.

In the related art, the manhole cover fixing structure constitutes a locking piece which is protruded to the center by screwing to fix the lid. However, this structure is required to form a screw hole after casting the supporting frame during manufacturing, and to manufacture the locking piece separately, the cost of the increase in the processing process and the increase of parts, as well as the productivity is lowered, and the screw is loosened when used. There is a fear that the locking piece may be lost due to the phenomenon, and there are difficulties in parts management.

Therefore, the present invention in the manhole consisting of the support frame 10 and the lid 20 seated on the upper portion, protrudes a plurality of protrusion pieces 22 at regular intervals around the lid, the lid on the inner upper portion of the support frame It is extended to be inserted to form a seating jaw (14) that the lid is seated in the lower portion of the expansion portion 33, the coupling groove and the inserted projection piece 22 is inserted into the projection piece of the lid inside the upper end of the extension of the support frame After the rotation was provided with a manhole provided with a locking piece 15 to restrain not to escape to the top.

The manhole of the present invention has the advantage that the structure is simple but easy to disassemble and assembly, the lid can be securely and firmly fixed to the support frame.

Description

manhole

The present invention relates to a manhole, and in particular, to provide a manhole that can be securely and securely fixed and opened by a simple operation of the manhole cover to the support frame, and also the height adjustment ring can be firmly assembled.

As everyone knows, the manhole consists of a support frame and a lid. The lid is to be seated on a seating jaw formed inside the upper end of the support frame.

The supporting frame and lid of the manhole are mostly made of cast iron, so that the lid is simply held by its own weight.

These manholes are installed on roads or sidewalks. When a car, especially a vehicle carrying heavy cargo, passes over the manhole at a high speed, the manhole cover is bounced off by the impact. Subsequent vehicles and pedestrians were in danger of being injured and there was a risk of the manhole cover being lost or damaged.

In order to prevent such a phenomenon, the applicant has applied for the fixing device of the manhole cover in 1996 Utility Model Registration Application No. 4681.

According to the application, screw the locking pieces that can be mounted at regular intervals of the manhole cover base frame, and the upper edge of the lid is formed with a plurality of grooves into which the locking pieces are inserted. Detachable from the groove of the lid to allow the separation of the lid, when closing the lid is inserted back into the groove of the lid and tighten the screw to ensure that the lid is securely and firmly locked to the manhole support.

However, this manhole cover fixing device has to process a plurality of screw holes after casting the supporting frame during manufacturing, and also to manufacture and assemble the locking pieces separately, thereby increasing the cost of increasing the manhole manufacturing process and increasing the parts, as well as productivity. There is a risk that the locking piece is lost due to the loosening of the screw during use, and the parts are difficult to manage.

Therefore, the present invention is an improvement of the utility model registration application No. 4681, filed by the present applicant, the object of the lid and the supporting frame so that the fixing device of the lid can be made in a simple structure without being made by combining a plurality of separate parts It is possible to manufacture the manhole quickly by improving the structure of the integrally formed by casting, as well as to provide a manhole that can be securely and firmly fixed or opened on the support frame by quick and easy operation.

In addition, another object of the present invention is to facilitate the operation by knowing the position of the locking device from the outside when opening and closing the lid.

In addition, another object of the present invention is to prevent the foreign matter is caught in the coupling portion to the locking device when the lid is combined with the manhole support or height adjustment ring.

In addition, another object of the present invention is to improve the structure to enable the height adjustment ring to be used in the manhole of the present invention the height adjustment ring interposed by the need for height adjustment by the construction error when constructing the manhole.

1 is an exploded perspective view of a manhole according to a first embodiment of the present invention;

Figure 2 is an assembled state to assemble the lid on the manhole support frame of the first embodiment,

3 is a cross-sectional view showing a state in which the manhole of the first embodiment is assembled;

4 is a detailed view of the stopper formed on the support frame locking piece of the first embodiment;

Figure 5 is an exploded perspective view showing a height adjustment ring structure assembled to the support frame of the first embodiment,

Figure 6 is a perspective view of the height adjustment ring is assembled in the manhole according to the first embodiment,

Figure 7 is a perspective view showing a fixing structure of the height adjustment ring coupled to the manhole of the first embodiment,

8 is a cross-sectional view of the manhole of FIG. 7;

9 is an exploded perspective view showing the structure of the height adjustment ring according to the second embodiment,

10 is a perspective view of the height adjustment ring of Figure 9 coupled to the manhole support,

11 is an exploded perspective view of a manhole according to a third embodiment of the present invention;

12 is a cross-sectional view of FIG. 11,

13A and 13B are a plan view and a sectional view taken along line A-A of a state in which the manhole cover of the third embodiment is primarily closed;

14A and 14B are cross-sectional views taken along the line B-B in a plan view of the third embodiment in which the manhole cover is secondarily closed;

Figure 15 is an exploded perspective view showing the height adjustment ring structure assembled to the manhole of the third embodiment,

16 is a cross-sectional view of FIG.

17 is an exploded perspective view of a manhole according to a fourth embodiment of the present invention;

18A and 18B are cross-sectional views of a cap coupled to a manhole according to a fourth embodiment of the present invention;

19 is an exploded perspective view showing the height adjustment ring structure assembled to the manhole of the fourth embodiment;

20A and 20B are cross-sectional views of the manhole of FIG. 19;

21A and 21B show another embodiment of the fourth embodiment,

22 is an exploded perspective view of a quadrilateral manhole according to a fifth embodiment of the present invention;

Figure 23a, 23b is assembled state that the lid is coupled to the manhole of Figure 22,

24 is an exploded perspective view showing the structure of the height adjustment ring coupled to the manhole support frame of the fifth embodiment;

25a and 25b are assembled views showing a state in which the height adjustment ring and the lid are coupled to the manhole support frame of the fifth embodiment;

Figure 26 is an exploded perspective view showing the structure of the height adjustment ring according to the sixth embodiment of the manhole support frame of the present invention,

Figure 27 is an assembled perspective view showing a state in which the height adjustment ring of the sixth embodiment is coupled.

*** Explanation of symbols for the main parts of the drawing ***

10-Support 11-Flange 12-Rib

13-Extension 14-Seating Jaw 15-Hook

16-engaging groove 17-stopper 18-bolt

19-Tightening Hole 20-Lid 22-Protrusion

23-Handle Slot 24-Hole 25-Handle

26-Connecting rod 27-Locking member 28-Sealing cover

29-tightening hole 30-height adjustment ring 32-protrusion

33-Extension 34-Seating Jaw 35-Hook

36-engaging groove 37-stopper

Manhole of the present invention for achieving the above object, in the manhole consisting of a support frame and a lid seated on the upper portion, protruding a plurality of protrusion pieces at regular intervals around the lid, the lid on the inner upper portion of the support frame It is expanded to be inserted to form a seating jaw is seated on the lower portion of the expansion portion, and the coupling groove and the inserted projection piece is inserted into the upper end of the expansion portion of the support frame and the inserted projection piece is rotated so as not to be separated from the top A locking piece that restrains is provided.

In addition, the upper part between the manhole cover and the support frame has a seating jaw, a coupling groove, a locking piece having the same structure as the upper end of the support frame, and the height can be adjusted by interposing a height adjustment ring having protrusion pieces having the same structure as the lid. It was made.

Hereinafter, with reference to the accompanying drawings the structure of the invention in detail as follows.

1 is an exploded perspective view of a manhole according to a first embodiment of the present invention, as shown, the lid 20 of the manhole has a plurality of protrusion pieces 22 having a constant size formed at regular intervals on the lower outer periphery. . On both sides of the upper surface of the manhole, a handle 25 is used to open or close the manhole cover 20. As shown in FIGS. 1, 2, 3, and 4, the handle 25 is provided with a connecting rod 26 connected downward in the center thereof, and has a structure in which a locking member 27 is connected to the lower end of the connecting rod 26. . The upper surface of the lid 20 in which the handle 25 is installed is formed with a handle groove 23 into which the handle 25 is inserted, and a hole through which the connecting rod 26 is installed in the center of the handle groove 23 ( 24) penetrates up and down. The bottom cover 28 is hermetically covered with a sealing cover 28 so that water does not leak into the hole 24 penetrated by the connecting rod 26.

The support frame 10 of the manhole is configured with a flange 11 around the lower portion, and a plurality of reinforcing ribs 12 are formed between the flange 11 and the outer circumferential surface. In addition, the upper inner diameter of the support frame 10 is extended so that the lid 20 in which the protrusion pieces 22 are formed can be inserted, and a seating jaw 14 in which the lid 20 is seated is formed at the lower portion of the expanded inner diameter. . The height of the extension 13 is the same as the thickness of the lid 20, the upper end of the inner diameter is formed with a locking piece 15 protruding to have an inner diameter enough to insert the lid 20. The engaging piece 15 is formed with a plurality of engaging grooves 16 of a size into which the projection pieces 22 formed on the outer periphery of the lid 20 are inserted. In addition, as shown in FIG. 4, a stopper 17 protruding obliquely in one direction is installed on a bottom surface of one of the locking pieces 15 divided into several pieces by the coupling groove 16, and thus, the lid 20. It limits the rotation of.

FIG. 2 is a view illustrating an assembly state in which a lid is assembled to a manhole support frame of the first embodiment, and when the lid 20 is fixed to the support frame 10, first, the handle 25 provided in both upper and left handle grooves 23 of the lid 20 is provided. ) And lift the lid (20). The handle 25 is pulled out upward by the length of the connecting rod 26 and when the locking member 27 connected to the lower end of the connecting rod 26 is in close contact with the lower surface of the lid 20, the handle 25 is no longer pulled out. In such a state, each protrusion piece 22 of the lid 20 is inserted into the coupling groove 16 of the support frame 10 to be seated on the seating jaw 14, and then the lid 20 is rotated. At this time, the stopper 17 is installed on the bottom surface of the support frame 10 so that the protrusion piece 22 of the lid 20 is gradually tightened by the inclined surface while the corresponding stopper 17 is rotated. The cap 20 is coupled to the interference fit so that the lid 20 as shown in FIG. In this state, the lid 20 can no longer be rotated and the lid 20 does not open well in reverse. When the lid 20 is completely opened to release the handle 25, the handle 25 is lowered downward through the hole 24 of the handle groove 23 by its own weight and is returned to the handle groove 23.

When the lid 20 is coupled to the support frame 10 as described above, a phenomenon in which the lid 20 is separated from the support frame 10 never occurs even when cars carrying a heavy load thereon pass at a high speed.

On the other hand, when the operator needs to open the lid 20 in relation to maintenance, repair and cleaning, grab the handle 25 and rotate the lid 20 in reverse. Since the projection piece 22 is in the state which was pressed by the stopper 17 at the time of rotation, it rotates by adding a little force. By this operation, the projection piece 22 is separated from the stopper 17 and rotates from the locking piece 15 of the support frame 10 toward the engaging groove 16. At this time, the projection piece 22 to be rotated to the stopper 17 formed on one side engaging piece 15 is caught, even if the lid 20 is applied with excessive force, the projection piece 22 naturally rotates without further rotation (coupling groove ( 16). If this state is opened by lifting the lid 20 is simply coupled.

5 is an exploded perspective view showing the height adjustment ring structure assembled to the support frame of the first embodiment, the upper end of the construction of the manhole may be incorrectly constructed lower than the road surface. At this time, the height adjustment ring 30 is interposed between the manhole support frame 10 and the lid 20, the existing height adjustment ring 30 can not be applied to the manhole of the present invention. Therefore, the height adjustment ring 30 to be applied to the manhole of the present invention should be provided separately.

In order to provide such a height adjustment ring 30, as shown in Figure 5, the protrusion piece 32 of the same size, structure and spacing as the protrusion piece 22 of the lid 20 is installed on the outer periphery of the lid 20, the upper part of the manhole support frame It has the same extension part 33 as the structure of the extension part 33 comprised in the upper part 10, ie, the seating jaw 34, the locking piece 35, the engaging groove 36, and the stopper 37.

The height adjustment ring 30 of this structure is assembled and separated in the same manner as when the lid 20 is combined when the support frame 10 is coupled, and the support frame 10 when the lid 20 is seated thereon. 6 is assembled in the same manner as when the lid 20 is seated in FIG. 6 and is disassembled in the same manner.

7 is a perspective view showing a fixing structure of the height adjustment ring coupled to the manhole of the first embodiment, as shown in each engaging piece 15 of the manhole support frame 10, and each projection of the corresponding lid 20 Fastening holes 19 and 29 are formed in the piece 22.

The fastening holes 19 and 29 are for firmly coupling the lid 20 to the manhole support frame 10 so that the lid 20 is not opened by the water pressure of the countercurrent, and once the lid 20 is supported. After coupling to (10) in the same manner as described above, the fastening holes (19) and (29) of the lid (20) and the support frame (10) coincide with the bolts (18) in the fastening holes (19) and (29). When fastened, it is firmly fixed as shown in FIG. As such, when the lid 20 is fixed to the support frame 10, the lid 20 is not opened even though the hydraulic pressure flowing back flows.

9 is an exploded perspective view showing the structure of the height adjustment ring according to the second embodiment, Figure 10 is a perspective view of the height adjustment ring of Figure 9 coupled to the manhole support.

The height adjustment ring 50 as shown is for applying to the already installed manhole support frame 40, the projection piece 32 formed on the lower end is removed, instead the lateral threaded hole 39 is fixed It is formed in plural at intervals.

In addition, a screw hole 49 corresponding to the screw hole 59 of the height adjustment ring 50 is formed on the upper inner surface of the seating jaw 44 of the support frame 40.

Therefore, after the height adjustment ring 50 is coupled to the upper portion of the support frame 40, the headless screw 59a is fastened to the screw holes 59 and 49 so that the height adjustment ring 50 and the support frame 40 are firmly secured. To be combined.

11 is an exploded perspective view of a manhole according to a third embodiment of the present invention, and FIG. 12 is a cross-sectional view of FIG. 11.

In the third embodiment, the inside of the support frame 10 is exposed through the coupling groove 16 between the locking piece 15 and the locking piece 15 of the support frame while the lid 20 is closed on the support frame 10. Therefore, foreign matter such as soil enters through this gap. Inflow of foreign matter is sandwiched between the engaging piece 15 and the seating jaw 14 and the projection piece 22 interposed therebetween acts as a factor that makes the opening and closing operation of the lid 20 difficult to prevent this. .

As shown, the support frame 70 is formed with a flange 61 supported by a rib 62 at a lower portion thereof, and a seating jaw 64 is formed at an upper inner diameter thereof, and an upper end and a seating jaw ( Around the inner circumferential surface between the 64 is formed a plurality of engaging pieces protruding at a predetermined interval, and the open display 67 at the upper end corresponding to the intermediate position between the adjacent engaging piece 65 and the engaging piece 65 And a lock mark 68 is formed at the upper end portion located at the center portion of the immediately adjacent engaging piece 65.

The lid 70 has a thickness from the seating jaw 64 of the support frame 60 to the upper end thereof. The side of the lid 70 is formed with a different diameter of the upper and lower, the upper end is extended to the same diameter as the upper inner diameter of the support frame 60, the lower portion of the inner diameter of the circle formed by the engaging piece (65) outer diameter An insertion section 72 is formed. A plurality of protrusion pieces 74 are formed in the circumference of the lower end of this insertion part 72 at the space | interval of the engaging piece 65 of the support frame 60. As shown in FIG. In addition, a reference mark 78 is formed on the upper surface located at the center of the one-side protrusion piece 74.

At this time, the reference mark 78 formed on the lid 70 and the locking and opening marks 68 and 67 of the support frame 60 are caught from the outside as the upper diameter of the lid 70 is the same as the upper inner diameter of the support frame 60. Since the position of the piece 36 and the locking piece 65 cannot be grasped, the assembly and disassembly can be performed by easily identifying the position of the piece 36 and the locking piece 65 without directly determining the position of the locking piece 65 and the locking piece 65. It is formed to make it easy.

Looking at the state of use to assemble and disassemble the manhole support frame and the lid of such a structure is as follows.

When the lid 70 is coupled to the manhole support frame 60, the reference mark 78 of the lid 70 coincides with the opening mark 67 of the support frame 60. In this case, since the projection piece 74 of the lid 70 corresponds between the locking piece 65 and the locking piece 65 of the support frame 60, the lid 70 is inserted into the upper portion of the support frame 60. The protrusion piece 74 passes through the locking piece 65 and the locking piece to be seated on the seating jaw 64. In this state, when the lid 70 is rotated at a predetermined interval to match the reference mark 78 with the locking mark 68 as shown in FIG. 14A, each of the protrusion pieces 65 is disposed at the lower portion of the locking piece 72 as shown in FIG. 14B. The lid 70 is coupled to the support frame 60, respectively. Even if the lid 70 is pulled open in this state, the protrusion piece 74 of the lid 70 is caught by the locking piece 65 so as not to be opened.

In particular, when the lid 70 is closed, since the upper part of the side of the lid 70 is hermetically adhered to the upper inner surface of the manhole, it is effectively blocked from invading foreign matter between the locking piece 65 and the seating jaw 64 from the outside. do. Therefore, the opening and closing operation of the lid 70 is made smoothly.

On the other hand, when opening the lid 70, as shown in Figure 13a by rotating the lid 70, the reference mark 78 located on the lock mark 68 is positioned on the open mark (67). In this way, since the locking piece 72 of the lid 70 is positioned between the locking piece 65 and the locking piece 65 as shown in FIG. 13B, the lid 70 is simply opened.

Figure 15 is an exploded perspective view showing a height adjustment ring structure assembled to the manhole of the third embodiment, Figure 16 is a cross-sectional view of the coupling of FIG.

As shown, the height adjustment ring 80 has a seating jaw 84 is formed in the upper inner diameter, a plurality of engaging pieces 85 are formed at a predetermined interval around the inner circumferential surface between the top and the seating jaw 84 is formed. It is. And the lower portion of the height adjustment ring 80 is formed with an insertion portion 81 having an inner diameter of the inner diameter of the circle formed by the engaging piece 65, such as the insertion portion 72 of the lid 70. A plurality of projection pieces 82 are formed around the lower end of the insertion portion 81 at intervals between the locking pieces 65 of the support frame 60.

When assembling the height adjustment ring 80 to the support frame 60, the projection piece 82 is worked between the engaging pieces 65 in the support frame 60 and inserted into the seat as in the case of inserting the lid 70. If it is rotated and the projection piece 82 of the height adjustment ring 80 is caught on the lower portion of the engaging piece 65, the height adjustment ring is firmly coupled to the support frame.

When the height adjustment ring 80 is seated in this way, the lid 70 may be seated in the same manner as described above.

17 is an exploded perspective view of a manhole according to a fourth embodiment of the present invention, and FIGS. 18A and 18B are cross-sectional views of a cap coupled to a manhole according to a fourth embodiment of the present invention.

As shown, the inner end of the seating jaw 94 of the support frame 90 extends inward to a predetermined length. The extended length is the same width as the projection piece 104 of the lid 100 to be described later, the plurality of coupling grooves 95 having a depth as long as the elongated length is formed at a predetermined interval in the extended seating jaw (94) have. In addition, coupling groove display protrusions 97 protrude from the upper outer periphery portion parallel to a portion where the coupling groove 95 is formed.

In addition, the lid 100 of the manhole has the same size as the upper inner diameter of the manhole, the lower portion is formed with an insertion portion 102 is inserted into the inner diameter of the extended seating jaw 94, the insertion portion 102 The lower periphery of the plurality of projection pieces 104 are formed. The protrusion piece 104 is formed in the same position as the coupling groove 95 of the mounting jaw 94, and the mounting jaw 94 extended through the coupling groove 95 when the lid 100 is seated. It is located at the bottom of). In the outer periphery of the lid 100, the projection piece display groove 107 is formed at a position where the projection piece 104 is formed.

When the manhole support frame 90 and the lid 100 of such a structure are combined, the lid 100 in a state where the projection piece display groove 107 of the lid 100 and the coupling groove display protrusion 97 of the support frame 90 are aligned with each other. ). In this way, the protrusion piece 104 of the lid 100 is seated while being inserted into the coupling groove 95 of the support frame 90. In this state, the lid 100 is rotated so that the protrusion piece 104 of the lid 100 is held in close contact with the lower seating jaw 94 of the support frame 90 so that the lid 100 is not opened upward. Will not.

In addition, when the lid 100 is opened, the projection piece display groove 107 and the coupling groove display projection 97 coincide with each other, and then lift the lid 100. In this way, since the protrusion piece 104 of the lid 100 and the coupling groove 95 of the support frame 90 coincide with each other, the lid 100 is smoothly opened from the support frame 90.

19 is an exploded perspective view showing the structure of the height adjustment ring assembled to the manhole of the fourth embodiment, Figure 20a, 20b is a sectional view of the manhole of FIG.

Height adjustment ring 110 is formed in the lower portion is inserted into the seating jaw 94 of the support frame 90, the insertion portion is formed in two stages. That is, the first inserting portion 111a inserted into the upper mounting jaw 94 of the support frame 90 and the second inserting portion 111b inserted into the lower mounting jaw 94 of the supporting frame 90 below the lower portion of the supporting frame 90. ) Is formed. A plurality of protrusion pieces 116 are formed around the lower end of the second inserting portion 111b and inserted into the coupling groove 95 of the seating jaw 90 at the same time. It is. In addition, the upper part includes a seating jaw 114 and a coupling groove 115 formed in the seating jaw 114 extending in the same size and shape as the pedestal 90 after the lid 100 is extended to be inserted therein. Formed. In addition, a coupling groove display protrusion 117 is formed on the outer circumference of the upper end of the height adjustment ring 110 corresponding to each coupling groove 115 formed in the seating jaw 114.

The height adjustment ring 110 of this structure is used by assembling the upper portion of the support frame 90 to correct this when installed lower than the road surface by the construction error during construction. When assembling, the lower projection piece 116 should be assembled in accordance with the coupling groove 95 of the support frame 90, but during construction, it is very difficult to match it from the outside. Assemble and assemble. When assembled in this way, the protrusion piece 116 of the height adjustment ring 110 is inserted into the coupling groove 95 of the support frame 90 so that the height adjustment ring 110 is seated on the support frame 110, and the protrusion is rotated. The height adjustment ring 110 is firmly assembled to the support frame 90 because the piece 116 is located at the bottom of the extended seating jaw 94 of the support frame 90.

When the height adjustment ring 110 is coupled as described above, the lid 100 is seated on the height adjustment ring 110 in the same manner as the lid 100 is seated on the support frame 90. Of course, opening also opens in the same way.

In the fourth embodiment described above, when the height adjustment ring or the lid is assembled, the projection piece is located between the locking piece and the seating jaw of the support frame, and the locking piece is also located between the top and the projection piece of the lid. Not only does it rotate, but when the ice freezes during the winter season, there is a risk that the lid will not open well.

This fourth embodiment has a locking piece function that the seating jaw (94) (114) of the support frame (90) and the height adjustment ring (110) supports the bottom surface of the lid (100) and prevents the projection piece (104) from falling out. It is characterized by performing as well. That is, when the lid 100 is assembled to the support frame 90 or the height adjustment ring 110, the protrusion piece 104 of the lid is simply located at the bottom of the extended seating jaw 94 and 104, so that the foreign matter moss The opening of the lid is made easy and easy because the dust is minimized and diarrhea can be easily removed even if foreign matter is caught and ice is frozen.

20A and 20B show another embodiment of the fourth embodiment, in which the technique of the fourth embodiment is equally applied to a safety manhole formed vertically without bending the side surface of the manhole.

On the other hand, Figure 22 is an exploded perspective view of a four-hole manhole according to the fifth embodiment of the present invention, Figure 23a, 23b is an assembled state diagram that the lid is coupled to the manhole of Figure 22, the support frame 120 and the lid as shown 130a and 130b have a rectangular structure.

Manhole cover (130a, 130b) is formed in a plurality of square piece projections 132 at regular intervals on both side lower ends. Lids 130a and 130b of this structure are separated into two, and these two lids 130a and 130b form a pair. When the two lids 130a and 130b are combined, the length is slightly smaller than the inner side length of the support frame 120. That is, it is configured to be as short as the coupling groove 126 to be described later.

In addition, the support frame 120 of the manhole is formed with a stepped 124 in which the lids 130a and 130b are seated on the inner side of the upper end, and the tops of the sides of the stepped ends 124 of the lids 130a and 130b. Locking piece 125 to prevent separation is formed to protrude at a constant interval, between the engaging piece 125, the engaging groove 126 of the size that the projection piece 132 of the lid (130a, 130b) is correspondingly inserted ) Are formed in large numbers. In addition, a plurality of flanges 121 are buried in the bottom of both sides of the support frame 120 buried in the road surface or paved cement or concrete when being installed.

By this structure, when the support frame 120 is buried in the ground or cement, asphalt pavement is firmly installed by the flange. When inserting the cap (130a, 130b) in the upper portion, as shown in Figs. 11a, 11b, one side of the lid (130a) so as to coincide with the projection piece 132 and the coupling groove 126 in the position of the center and then inserted After sliding to the side end portion in the longitudinal direction, the other lid 130b is also inserted in the same manner. At this time, since one side of the lid (130a) has already been inserted there is no margin, but if you push the inserted cap (130a) as much as possible the clearance gap of the coupling groove 126 is made easy to insert the remaining cap (130b). . As such, when the remaining cap 130b is inserted, the projection piece 132 is caught by the locking piece 125 of the support frame 120 so that the caps 130a and 130b do not fall out. And a gap is generated in the center side as one coupling groove 126, this gap is fine, so there is no abnormality in safety at all, rather it is a passage for the rainwater and sewage flowing smoothly.

In addition, a handle (not shown) may be installed at an upper portion of each of the lids 130a and 130b to facilitate opening or mounting.

24 is an exploded perspective view showing the structure of the height adjustment ring coupled to the manhole support frame of the fifth embodiment, Figure 25a, 25b is an assembled state diagram showing a state in which the height adjustment ring and the lid is coupled to the manhole support frame of the fifth embodiment, The manhole of such a structure needs to be height-adjusted by a construction error similarly to the manhole mentioned above. Therefore, the height adjustment ring 140 is provided.

The height adjustment ring 140 has the same structure as the shape of the support frame 120 without the flange 121, as shown in Figure 22 is a step 144, the locking piece 145, the coupling groove 146, the lower An insertion part 143 having a width enough to be inserted and seated on the step 124 of the supporting frame 120 is formed, and the projection pieces 132 of the lids 130a and 130b are formed on both sides of the insertion part 143. The projection pieces 142 of the same size and spacing are formed.

At this time, one side end of the insertion portion 143 in the longitudinal direction has a cutout groove 144 formed by removing the length of the coupling groove 126 of the support frame 60. This is to facilitate the coupling to the support frame 120.

When assembling the height adjustment ring 140 of such a pair the length of the coupling groove 126 toward the notch groove 147 of the insertion portion 143 in a state in which the support frame 120 and the height adjustment ring 140 side by side Move the height adjustment ring 140 to. In this case, the protrusion piece 142 of the height adjustment ring 140 and the coupling groove 126 of the support frame 120 are coincident with each other. When the height adjustment ring 140 is lowered in this state, the projection piece 142 of the height adjustment ring 140 is inserted between the coupling grooves 126 as shown in FIG. 25A. At this time, the insertion of the height adjustment ring 140 by the cutout groove 144 of the insertion portion 143 is not affected. When the sliding movement to the original position in the inserted state in this way is coupled to the height adjustment ring 140 side by side as shown in Figure 25b the upper portion of the support frame (120).

In such a state, when the caps 130a and 130b are seated in the same way as seating on the support frame 120, the assembling of the manhole is completed.

On the other hand, Figure 26 is an exploded perspective view showing the structure of the height adjustment ring according to the sixth embodiment of the manhole support frame of the present invention, Figure 27 is an assembled perspective view showing a state in which the height adjustment ring of the sixth embodiment is coupled, as shown As can be seen that the structure of the height adjustment ring 150 is different from the above-described height adjustment ring 140. That is, the protrusion piece 142 formed in the insertion portion 153 of the height adjustment ring 140 is not formed, there is no cutout groove 144, and a plurality of screw holes 154 are formed on both sides.

This structure is intended to be applied to the already installed manhole support frame 160, the height adjustment ring 150 is lowered as it is placed side by side in the upper portion of the support frame 160 when installed, the stepped 124 of the support frame Bond to seat. Then, when the headless screw 155 is fastened to the screw hole 154, the height adjustment ring 150 and the support frame 160 are firmly coupled as shown in FIG. At this time, by forming a groove in which the end of the screw 155 is inserted in the inner surface of the support frame can achieve a more robust coupling.

As described above, according to the present invention, when the lid is coupled to the support frame, the projections and the coupling grooves corresponding to each other in the support frame and the lid are formed by casting without forming the fixing device of the lid as in the prior art. By forming integrally, there is an advantage in that the structure is simple and the lid can be stably and firmly fixed to the support frame. In addition, when the operator wants to open the lid, it can be opened by a simple operation, and the seating jaw of the support frame or the height adjustment ring can also function as a locking piece so that it can be easily opened even if foreign matter gets caught between the locking piece of the lid. There is an advantage.

In addition, when the height is adjusted by the manhole construction error, the upper part has a structure of a seating jaw, a locking piece, and a coupling groove like the upper structure of the support frame, and the lower part has a structure of a lid composed of a protrusion piece on the outer periphery and is easily coupled to the support frame. By having a height adjustment ring of the height can be easily adjusted to the manhole structure of the present invention.

Claims (13)

In the manhole consisting of a support frame 10 and a lid 20 seated thereon, Protrudes a plurality of protrusion pieces 22 at regular intervals around the lid 20, Expanding the upper portion of the support frame 10 so that the lid 20 is inserted to form a seating jaw 14 in which the lid 20 is seated on the inner lower portion of the extension part 13, The coupling groove 16 into which the protrusion piece 22 of the lid 20 is inserted and the inserted protrusion piece 22 are rotated inside the upper end of the extension part 13 of the support frame 10 so as not to be separated upward. Manhole, characterized in that the locking piece 15 is provided to restrain. According to claim 1, Stopper 17 for limiting the rotation of the lid 20 by fixing the projection piece 22 after the insertion of the lid 20 to the lower surface of any one locking piece 15 formed in the support frame 10 ) Is provided with a manhole. According to claim 1, wherein the upper portion between the manhole cover 20 and the support frame 10, the mounting jaw 34, the coupling groove 36, the engaging piece 35 and the stopper of the same structure as the upper end of the support frame 10 (37), the lower end of the manhole, characterized in that the height adjustment ring (30) having a projection piece 32 of the same structure as the lid 20 is interposed. In the manhole consisting of a support frame and a lid seated on the top, The upper portion extends so that the lid 20 is inserted, and forms a seating jaw 14 in which the lid 20 is seated on the inner lower portion of the extension portion. After the protrusion piece 22 of the lid 20 is inserted into the upper end of the expansion part to form a plurality of locking pieces 55 to restrain not to be separated, The lower periphery is a manhole support frame which is already installed by forming a height adjusting ring 50 formed by penetrating a plurality of screw holes 59 around the inner surface of the inner diameter of the upper portion of the known support frame 40, which is already installed. The manhole characterized in that it is fixed to the seat by fastening to the (40) by tightening the screw (59a). In the manhole consisting of a support frame 60 and a lid 70 seated thereon, A plurality of locking pieces 65 protruding at regular intervals are formed around the inner circumferential surface between the upper end of the support frame 60 and the seating jaw 64, and the intermediate positions of the adjacent locking pieces 65 and the locking pieces 65 are formed. Opening mark 67 is formed on the upper end corresponding to The lid 70 has a thickness from the seating jaw 64 of the support frame 60 to the upper end thereof as a thickness, and the side is divided into an upper part and a lower part, and the upper part is made the same diameter as the upper inner diameter of the support frame 60, and the lower part is a locking piece. Insertion portion 72 having an inner diameter of a circle formed by 65 as an outer diameter is formed, and the projection piece 74 is spaced around the lower end of the insertion portion 72 at an interval of the engaging piece 65 of the support frame 60. A manhole characterized in that formed by a plurality. 6. The locking mark 68 is formed at an upper end portion parallel to the adjacent locking piece 65 and the locking piece central portion, and a locking mark 68 is formed at an upper end portion parallel to the central portion of the adjacent locking piece 65. , Manholes, characterized in that the reference mark 78 is formed on the upper surface located in the central portion of the one-side protrusion piece 74 of the lid 70 According to claim 6, the lower portion has an insertion portion 81 is inserted into the interior of the support frame 60 and a plurality of projection pieces 82 corresponding to the engaging piece of the support frame 60 around the lower end at regular intervals It is formed, the upper portion is extended in the same manner as the upper portion of the support frame 60 has a seating jaw 84 therein, between the seating jaw and the upper end and the locking piece 85 corresponding to the projection piece 74 of the lid 70 Manhole characterized in that it comprises a height adjustment ring (80) formed by forming a plurality. In the manhole consisting of the lid 100 is detachably coupled to the support frame 90 and the seating jaw 94 of the inner upper portion, The inner end portion of the seating jaw 94 extends inward to a predetermined length and forms a plurality of coupling grooves 105 having a depth equal to the extended length at regular intervals, The lid 100 has an insertion portion 102 inserted into the seating jaw 94 of the support frame 90 and protrudes around the lower end thereof so as to be inserted into the coupling groove 95 of the seating jaw 94 and to rotate at the same time. Manholes, characterized in that formed by the projection piece 104 is caught on the lower mounting jaw (94) extended by. The method of claim 8, wherein the first insertion portion 111a is inserted into the seating jaw 94 of the support frame 90 in the lower portion and the second insertion portion 111b inserted into the lower portion of the seating jaw 94 in the lower portion thereof. ) And a plurality of protrusion pieces 116 that are inserted into the coupling groove 95 of the seating jaw 90 around the lower end of the second insertion part 111b and are caught by the seating jaw 95 extended by rotation. ) And the upper portion is extended to the lid 100 to be inserted into the seating jaw 114 and the coupling groove 115 to the seating jaw 114 extending in the same size and shape as the pedestal 90 therein. Manholes, characterized in that assembled to the upper portion of the pedestal (90) having a height adjustment ring (110) each formed. The method of claim 8, wherein the mounting groove (94, 114) is formed in the coupling grooves (95, 115) position of the pedestal 90 and the height adjustment ring 110, the upper surface of the coupling groove display projections (97) 117 is formed, the outer periphery of the lid 100, the manhole, characterized in that the projection piece display groove 107 is formed in the position where each projection piece 104 is formed. In the manhole consisting of a rectangular support frame 120 and a lid 50 seated thereon, The lids 130a and 130b are divided into two bodies to form a plurality of protrusion pieces 132 protruding at regular intervals on both side lower ends of each body, The support frame 120 forms a step 124 in which the lids 130a and 130b are seated on the inner side of the upper end portion. The locking pieces 125 are formed to protrude at regular intervals on the upper sides of the side steps 124 and prevent the separation of the lids 130a and 130b, and the caps 130a and 130b between the locking pieces 125. Protruding piece 132 of the plurality to form a plurality of coupling grooves 126 of the corresponding insertion, Manholes characterized in that a plurality of flanges formed on the lower side of both sides. According to claim 11, the upper portion has the same shape as the shape of the support frame 120, the flange 121 is removed, the lower portion of the insertion portion is wide enough to be inserted into the step 124 of the support frame 120 143 is provided, and a plurality of protrusion pieces 142 protruding at intervals of the coupling grooves 126 are formed at both lower sides of the inserting portion 143, and one side lower portion of the inserting portion 143 in the longitudinal direction is provided. The manhole characterized in that the height adjustment of the manhole is provided with a height adjustment ring 140 formed with a notch groove 144 cut into the length of the protrusion piece 142 interval 12. The manhole according to claim 11, wherein the height adjustment ring 150 removes the protrusion pieces 142 of the insertion part 153 and forms a plurality of screw holes 154 through the insertion part 153. Manhole, characterized in that fixed to be coupled by fastening the screw 155 after coupling to the support frame (160).