KR100299072B1 - Manhole with lid open guard - Google Patents

Abstract

The present invention relates to a manhole equipped with an opening preventing device.

In the conventional manhole, when both sides of the lid is seated on the support frame, the space between the lid and the lid is inevitably opened, and the appearance is poor. In addition, the number of the locking jaw formed on both sides of the lid and the corresponding support frame of the support frame is too large, making it difficult to manufacture, and if the lid is continuously impacted while both sides of the lid are seated on the manhole, the lid may move to the center little by little. As a result, when the lid is inserted into the manhole support frame, the locking jaw and the locking piece may be displaced.

Therefore, the present invention is provided with a plurality of lids having locking jaws on both sides, and a seating hole formed with a support frame for preventing the lid from being detached by having a locking piece corresponding to the locking jaw of the lid on the seating jaw and the upper circumference where the lid is seated. In this case, the front and rear portions of both sides of the lid are removed by the size and thickness of the locking piece to form the locking jaws, respectively, and to form an insertion groove into which the locking piece is inserted at a position adjacent to the locking jaw formed at the tip portion, and opposing surfaces of the both side lids. At least one protrusion to be meshed with each other is arranged to be ubiquitous, and one side protrusion is provided with means for maintaining the gap between the lids to solve the disadvantages as in the prior art.

Description

Manhole with lid open guard

The present invention relates to a manhole having a rectangular structure, and in particular, when the lid is seated on the support frame, a locking jaw is formed at both front and rear sides of the lid, and the corresponding manhole support frame is formed by a locking piece and once caught by the locking piece. The present invention relates to a manhole in which a lid opening preventing device is installed to prevent the opening of the lid and to prevent both sides of the lid from flowing through the flow preventing device, thereby allowing the manhole cover to be stably and firmly seated.

In general, manholes are used for the purpose of allowing humans to enter and exit the ground, for the maintenance and management of sewers, but they are also widely used to serve as drains to drain rainwater on roads and sidewalks.

The manhole used for drainage purposes of this rainwater is seated on the lid formed with a plurality of drainage holes in the upper part, which is mostly to be able to maintain a seated state simply by the weight of the lid.

The manhole cover of such a structure is severely flowed up and down when impacted by a vehicle or other external factors, and generates a lot of noises, and is easily released from the manhole support frame, so that pedestrians or vehicles fall into the manhole, especially at night. Often accidents occurred.

To prevent this, the applicant filed a manhole with Utility Model Registration No. 98-15380.

According to the contents, as shown in Figure 1 to form a seating jaw (24) in which the lid 10a (10b) is seated on the inner side of the manhole support frame and at the same time forming a plurality of inwardly engaging pieces 22 at regular intervals The lids 10a and 10b respectively seated on both sides form a locking jaw 11 having the same size as the groove 23 formed between the locking piece 22 and the locking piece 22 of the support frame 20. The locking pieces 22 of 20 and the locking jaws 11 of the lids 10a and 10b are staggered and inserted into the seating jaw 24, and then slides to both sides of the support frame 20 as shown in FIG. .

With this structure, the lid 10a, 10b once seated on the support frame 20 is effectively prevented from leaving the manhole or preventing noise due to flow even when the locking jaw 11 is caught by the locking piece 22 and receives a large shock from the outside. There was an advantage that the stability of the manhole was improved.

However, the manhole filed by the present applicant with such a structure has the advantages as described above, but when both the lid is seated on the support frame, the space between the lid and the lid is bound to be open, so the appearance of the pedestrian is poor. There was a risk of falling out and needed to be addressed.

In addition, the number of the locking jaw formed on both sides of the lid and the corresponding support frame of the support frame is too large, making it difficult to manufacture, and if the lid is continuously impacted while both sides of the lid are seated on the manhole, the lid may move to the center little by little. As a result, when the lid is inserted into the manhole support frame, the locking jaw and the locking piece may be displaced. In this case, the locking jaw of the lid is freed, and thus, when the shock is received, the lid may be detached or noise may occur.

Therefore, the present invention is intended to achieve a more perfect manhole by improving and supplementing the disadvantages of the Utility Model Registration Application No. having the above disadvantages, the object of which is to form a locking jaw only at both front and rear portions and at the same time corresponding to the manhole support frame Also, the locking pieces are formed in the same way to make the manhole easier and at the same time, the protrusions are formed on the opposing surfaces of both lids to increase the stability by minimizing the gap between the lid and the lid. It is to provide a manhole is installed to prevent the opening of the lid to increase the stability by ensuring that the lid is not completely flow even when the seat is closed through the gap maintaining means to maintain the.

1 is an exploded perspective view showing a manhole structure according to the prior art,

2 is a perspective view of a closed state of the lid of the manhole according to the prior art,

3 is an exploded perspective view of a manhole separated from one side of the lid according to the present invention;

4 is a perspective view of a manhole in a closed state in accordance with the present invention;

5 is a perspective view showing the structure of the manhole support frame according to the present invention;

6 is a cross-sectional view taken along the line A-A of FIG.

7 is a main portion separated cross-sectional view showing a lid flow prevention device according to the present invention,

8a, 8b is an operating state of the lid flow preventing device according to the invention,

9A, 9B, and 9C are exemplary views of a manhole installed with a lid opening preventing device according to the present invention.

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

30a, 30b-Lid 31-Insertion groove 32,33-Hanging jaw

34-protrusion 40-support frame 41-seating jaw

42,43-Locking piece 44-Rotating hole 45-Locking groove

50-spacer 51-thread 52-tip

53-nuts

Manhole of the present invention for achieving the above object,

In the manhole consisting of a plurality of lids having a locking jaw on both sides, and a support frame for preventing the separation of the lid having a locking piece corresponding to the locking jaw of the lid on the seating jaw and the upper circumference where the lid is seated,

Remove the upper and rear portions of the front and rear sides of the lid to the size and thickness of the locking piece to form the locking jaw, respectively, and to form an insertion groove into which the locking piece is inserted at a position adjacent to the locking jaw formed at the tip portion, and the opposite sides of the lid It is achieved by installing the lid opening preventing device, characterized in that the at least one protrusion is arranged to be ubiquitous arrangement, the means for maintaining the gap between the lids on one side of the protrusion.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view of a manhole separated from one side of the lid according to the present invention, FIG. 4 is a perspective view of a manhole with the lid closed according to the present invention, and FIG. 5 is a perspective view showing a manhole support frame structure according to the present invention.

As shown, the manhole consists of a support frame 40 and a plurality of lids 30a and 30b seated on the support frame 40.

Caps 30a and 30b have locking jaws 32 and 33 formed at both front and rear sides thereof, respectively, and inserting grooves 31 are formed inside the locking jaws 32 formed at both sides of the central portion. Two protrusions 34 are formed in the facing portion of 30b). The protrusions 34 are formed at equal intervals and are formed to have symmetrical structures on opposite sides when the lids 30a and 30b are reversed.

Moreover, the spacer 50 which maintains the space | interval of the lid 30a, 30b is formed in the front-end | tip part of the outer protrusion part 34. As shown in FIG. The protrusion part 34 in which the spacer 50 is installed is formed with a rotation hole 44 penetrating up and down and into which the spacer 50 is inserted and rotated, and at the upper end of the rotation hole 44 in the direction of the tip of the projection part 34. The formed fixing groove 45 is formed. In addition, the spacer 50 fitted into the rotation hole 44 has a structure in which the upper end of the rod is bent at right angles in a double direction, and the threaded portion 51 is formed at the lower end thereof. In this case, the horizontal length of the spacer 50 is such that its tip is in close contact with the tip of the other lid 30b from the protrusion 34 of the one lid 30a when both caps 30a and 30b are completely seated. It is. In addition, the spacer 50 is assembled by inserting the lower end into the rotation hole 44 and fastening the nut 53 to the lower thread part 51 passing through the rotation hole 44. It has a length enough to rotate without lifting the lid 30a, 30b in the lifted state.

Since the caps 30a and 30b have symmetrical structures, the caps 30a and 30b may be installed only by changing directions when installed, and thus, only caps 30a and 30b of one structure may be produced during production.

In addition, the support frame 40 is a size in which two lids 30a and 30b of a square are seated therein, and a seating jaw 41 in which the lids 30a and 30b are seated is formed. The locking pieces 42 and 43 corresponding to the locking projections 32 and 33 of the lids 30a and 30b are protruded.

When seating the lid 30a (30b) to the support frame 40 having such a structure, as shown in Figure 3, one side of the lid 30b is first seated on the support frame 40, and then the other lid 30a to be seated However, when seating, the seating grooves 31 of the lids 30a and 30b and the engaging pieces 42 and 43 formed in the center of the support frame 40 are lowered to fit and seated. Then, the lids 30a and 30b are pushed to the sides of the support frame 40, and the lids 30a and 43 are set in a state in which the locking pieces 42 and 43 are opposed to the locking jaws 32 and 33, thereby setting the lids 30a and 30b. Do not allow 30b to be detached from the supporting frame 40.

After seating the lids 30a and 30b as described above, the spacers 50 formed on the protrusions 34 are lifted upward and rotated so that the tip portions 52 are positioned to face the opposite lids 30a and 30b. It is lowered by its own weight of 50) to fit in the fixing groove (45). In this case, the tip of the spacer 50 is fixed in contact with the tip of the other lids 30a and 30b, so that the interval between the lids 30a and 30b is kept constant even when an impact is applied from the outside.

In addition, because the protrusions 34 are installed in a staggered state between the lid 30a and the lid 30b, the spaced gaps between the lid 30a and the lid 30b are dispersed, and thus serves as a hole into which rainwater flows. As the size of the hole becomes smaller due to the dispersion of the gap, the risk of a safety accident such as a pedestrian falling into the gap is eliminated.

On the other hand, when the lids 30a and 30b need to be opened from the support frame 40, the spacers 50 are lifted up and separated from the fixing groove 45, and then rotated so that both lids 30a and 30b are moved to the center portion. After making it easy to move, one side of the lid 30a (30b) by sliding the moving from the center portion to the insertion groove 31 in the state in which the engaging pieces (42) 43 of the support frame 40 is lifted up to open easily Becomes

As described above, in the present invention, when the lid is seated on the supporting frame, the locking jaw of the lid is not caught by the locking piece of the supporting frame so that the lid is not opened or noise is generated by external impact, and the locking piece The number of the locking jaws can at least fully exert the effect, as well as the manufacturing is easy.

In addition, since the gap between the combined lid can be maintained continuously through the spacer, even if used for a long time, the lid is easily prevented from moving to the center portion as in the prior art, and the interleaved protrusion between the combined lids is prevented. As a result, the gap formed between the lid and the lid is dispersed, and thus the hole becomes smaller, thereby effectively preventing the pedestrian from falling into the spaced space as in the related art, which is an extraordinary invention having higher stability.

Claims (2)

A plurality of lids 30a and 30b having locking jaws 32 and 33 at both sides, and a seating jaw 41 and a top cap 30a and 30b at which the lids 30a and 30b are seated. In the manhole composed of a support frame 40 to prevent the separation of the lid 30a, 30b by having a locking piece (42, 43) corresponding to the locking jaw (32) 33 of the The upper and lower portions of the front and rear sides of the lids 30a and 30b are removed by the size and thickness of the locking pieces 42 and 43 to form the locking jaws 32 and 33, respectively, and the locking jaws 32 formed at the front end portions. An insertion groove 31 into which the engaging pieces 42 and 43 are inserted at positions adjacent to each other, and at least one protrusion 34 engaged with each other on opposite surfaces of the lids 30a and 30b to be ubiquitous. Manholes provided with a lid opening preventing device, characterized in that arranged in the arrangement, the means for maintaining the interval between the two lids (30a, 30b) on the one side projection (34). According to claim 1, wherein the means for maintaining the spacing of the lid (30a, 30b) is provided with a spacer (50) having a threaded portion 51 formed at the lower end of the rod after bending the right angle of the rod in a double angle. 30a, 30b, through one side of the projection 34 is formed up and down the rotation hole is inserted into the lower end of the spacer 50 and the nut 53 is coupled to the threaded portion 51 of the spacer 50 in the lower portion The manhole is provided with a lid opening preventing device, characterized in that by forming a fixing groove 45 is fixed to the spacer 50 in the direction of the opposite side cap (30a) (30b) at the top of the rotation hole (44).