Handle-Operated Locking and Floating Manhole Cover

Abstract

The present invention relates to a handle-operated locking and floating manhole cover, and more specifically, to a handle-operated locking and floating manhole cover that maintains the locked state of the manhole cover using a handle rotation structure, prevents the manhole cover from scattering or detaching when internal pressure rises, and allows the manhole installation height to be adjusted. The handle-operated locking and floating manhole cover according to the present invention comprises: a fixing part (100) that is fastened and fixed to a sewage pipe or sewer pipe; and a moving part (200) that is coupled to the fixing part (100) so as to be movable up and down. and a cover portion (300) seated on the movable portion (200); wherein a first through hole (140) is formed in the fixed portion (100), and a second through hole (230) is formed in the movable portion (200) at a position corresponding to the first through hole (140); and a locking handle portion (380) is provided in the cover portion (300), and the locking handle portion (380) includes a pair of vertical rods (381), a horizontal rod (382) protruding outwardly from the lower end of the vertical rods (381), and a connecting rod (383) connecting the vertical rods (381); wherein the horizontal rod (382) is locked and coupled to the fixed portion (100) according to the rotation of the cover portion (300) while passing through the first through hole (140) and the second through hole (230), thereby preventing the cover portion (300) from detaching. It is possible.

Description

Technology Field

[0001] The present invention relates to a handle-operated locking and floating manhole cover, and more specifically, to a handle-operated locking and floating manhole cover that maintains the locked state of the manhole cover using a handle rotation structure, prevents the manhole cover from scattering or detaching when internal pressure rises, and allows the manhole installation height to be adjusted. Background Technology

[0003] As is well known, a manhole serves as an entrance to a workspace formed underground for the inspection, cleaning, and maintenance of water supply and sewage systems, wastewater, and sewer pipelines, and its upper opening is typically closed by a manhole cover.

[0004] Since such manhole covers must withstand the load of pedestrian and vehicle traffic while also being easily openable by a worker when necessary, they have mostly been installed by simply resting on the top of the manhole body.

[0005] However, with manhole covers of the simple anchoring type, the covers frequently become loose or open unintentionally due to external physical factors such as repeated vehicle traffic, road vibrations, and fluctuations in water pressure inside the pipes.

[0006] In particular, during heavy rainfall, the pressure inside the pipe may rise, causing manhole covers to be lifted and dislodged, which poses a serious risk factor that leads directly to pedestrian falls and vehicle safety accidents.

[0007] In addition, if a manhole cover is merely seated without any separate locking mechanism, a third party can arbitrarily open and remove the manhole cover, leading to frequent theft and loss, which not only increases repair costs but also causes secondary accidents due to the open manhole.

[0008] In addition, if there is a gap between the contact surface of the manhole cover and the manhole body, the manhole cover shakes whenever a vehicle passes, generating vibration and noise that detracts from the living environment of nearby residents.

[0009] To address this, technologies such as installing locking keys on manhole covers or adding separate opening and closing devices have been proposed; however, these methods had limitations, such as reduced work efficiency due to the need for separate keys or tools, increased manufacturing costs due to complex structures, and reduced on-site constructability.

[0010] Accordingly, there is a need for a technology that can firmly secure the manhole cover to the manhole body without separate tools or complex additional devices, thereby preventing unauthorized opening, injury, and theft caused by external physical factors, and reducing vibration and noise. Prior art literature

[0012] (Reference 1): Patent No. 10-2052884 (Pressure regulating device for manhole covers, Jan. 22, 2020) The problem to be solved

[0013] The purpose of the present invention is to provide a handle-operated locking and floating manhole cover that can stably maintain the locked state of the manhole cover using a handle rotation structure.

[0014] In addition, the present invention aims to provide a handle-operated locking and floating manhole cover that can prevent the manhole cover from scattering or detaching outward even when the internal pressure of the manhole rises due to floods, backflow, underground gas explosions, etc.

[0015] The various problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0017] The handle-operated locking and floating manhole cover according to the present invention comprises: a fixing part (100) that is fastened and fixed to a sewage pipe or sewer pipe; and a moving part (200) that is coupled to the outside of the fixing part (100) so as to be movable up and down. and a cover portion (300) seated on the movable portion (200); wherein a first through hole (140) is formed in the fixed portion (100), and a second through hole (230) is formed in the movable portion (200) at a position corresponding to the first through hole (140); and a locking handle portion (380) is provided in the cover portion (300), and the locking handle portion (380) includes a pair of vertical rods (381), a horizontal rod (382) protruding outwardly from the lower end of the vertical rods (381), and a connecting rod (383) connecting the vertical rods (381); and the horizontal rod (382) is connected to the lower surface of a fixed plate (110) formed on the fixed portion (100) as the cover portion (300) rotates at a certain angle while passing through the first through hole (140) and the second through hole (230). The cover part (300) can be prevented from coming off.

[0018] Additionally, the fixed part (100) includes a fixed plate (110), a fastening hole (120), and a height adjustment bolt (130), and the moving part (200) can be moved upward or downward depending on the rotation of the height adjustment bolt (130) so that the height of the manhole cover can be adjusted.

[0019] Additionally, the moving part (200) includes a support plate (210) and a locking part (220), and the locking part (220) may be formed in a toothed shape so that a working tool (500) for rotating the cover part (300) can be locked and coupled.

[0020] An insertion hole (310) into which the work tool (500) is inserted is formed in the cover portion (300), and the work tool (500) is inserted through the insertion hole (310) and engaged with the locking tooth portion (220), so that the cover portion (300) can be rotated by the lever principle.

[0021] Additionally, an opening (330) and a rotating tooth (340) are formed in the cover portion (300), and the rotating tooth (340) engages with the locking tooth (220) to prevent arbitrary rotation of the cover portion (300).

[0022] In addition, a side groove (350) and a lower groove (360) are formed in the cover portion (300), and a cushioning packing (370) is inserted and fixed in the side groove (350) and the lower groove (360) to mitigate shock and vibration.

[0023] Additionally, the invention includes a deformation prevention member (400) that is fastened to a height adjustment bolt (130) provided in the fixed member (100) to prevent deformation of the moving member (200); wherein the deformation prevention member (400) includes a moving member (410), a connecting member (420), and an elastic member (430), wherein the moving member (410) is screw-coupled to the height adjustment bolt (130), and the elastic member (430) is positioned between the fixed member (100) and the moving member (200) to elastically support external impact or load, thereby dispersing the load concentrated on the moving member (200) and preventing deformation of the moving member (200).

[0024] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0026] The handle-operated locking and floating manhole cover according to the present invention can maintain the cover in a locked state by utilizing the rotational structure of the locking handle part, thereby having the effect of preventing the manhole cover from being opened arbitrarily due to external impact or vibration.

[0027] In addition, even when the manhole cover is lifted due to an increase in internal pressure caused by floods, backflow, or underground gas explosions, the horizontal rod of the catch handle remains engaged with the lower surface of the fixing plate, thereby effectively preventing the manhole cover from scattering or becoming detached.

[0028] In addition, the lever-type rotational structure utilizing a work tool allows the operator to rotate and open the cover with less force, thereby improving work convenience.

[0029] It will be fully understood that embodiments of the technical concept of the present invention may provide various effects not specifically mentioned. Brief explanation of the drawing

[0031] FIG. 1 is a perspective view of a handle-operated locking and floating manhole cover according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a handle-operated locking and floating manhole cover according to an embodiment of the present invention. FIGS. 3 and FIGS. 4 are perspective views of a moving part according to an embodiment of the present invention. FIG. 5 is a perspective view of a cover portion according to an embodiment of the present invention. FIGS. 6 to 11 are drawings showing the sequence of installing a cover part according to an embodiment of the present invention. FIG. 12 is a perspective view showing a state in which a cover portion is floated according to an embodiment of the present invention. FIG. 13 is a cross-sectional view showing a state in which a cover portion is floated according to an embodiment of the present invention. FIG. 14 is a perspective view of a deformation prevention part in a handle-operated locking and floating manhole cover according to an embodiment of the present invention. FIG. 15 is a cross-sectional view of a deformation prevention part attached to a handle-operated locking and floating manhole cover according to an embodiment of the present invention. Specific details for implementing the invention

[0032] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this application, terms such as “comprising” or “having” are intended to specify the presence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof, and should not be interpreted in an ideal or overly formal sense unless explicitly defined otherwise.

[0034] Hereinafter, a preferred embodiment of a handle-operated locking and floating manhole cover according to the present invention will be described in detail with reference to the attached drawings.

[0036] FIG. 1 is a perspective view of a handle-operated locking and floating manhole cover according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of a handle-operated locking and floating manhole cover according to an embodiment of the present invention, FIG. 3 and FIG. 4 are perspective views of a moving part according to an embodiment of the present invention, FIG. 5 is a perspective view of a cover part according to an embodiment of the present invention, FIG. 6 to 11 are drawings showing the sequence of installing the cover part according to an embodiment of the present invention, FIG. 12 is a perspective view showing the state in which the cover part is floating according to an embodiment of the present invention, FIG. 13 is a cross-sectional view showing the state in which the cover part is floating according to an embodiment of the present invention, FIG. 14 is a perspective view of a deformation prevention part in a handle-operated locking and floating manhole cover according to an embodiment of the present invention, and FIG. 15 is a cross-sectional view showing the deformation prevention part fastened in a handle-operated locking and floating manhole cover according to an embodiment of the present invention.

[0038] Referring to FIGS. 1 to 15, the handle-operated locking and floating manhole cover according to the present invention may include a fixed part (100), a moving part (200), a cover part (300), and a deformation prevention part (400).

[0039] The above-mentioned fixed part (100) has a through hole formed in the center and a flange formed at the bottom, so that it can be fastened and fixed to communicate with a sewage pipe or a sewer pipe.

[0040] In addition, the fixed part (100) is formed so that the moving part (200) is slidably coupled to it, thereby guiding the up and down movement of the moving part (200).

[0041] A fixing plate (110), a fastening hole (120), a height adjustment bolt (130), and a first through hole (140) may be formed in the above fixing part (100).

[0042] The above fixing plate (110) may be formed to protrude along the inner circumference direction on the upper outer wall of the above fixing part (100), and a plurality of fastening holes (120) may be formed at regular intervals in the above fixing plate (110).

[0043] A height adjustment bolt (130) can be screw-coupled to the above-mentioned fastening hole (120), and the height adjustment bolt (130) can be configured to move upward or downward depending on rotation.

[0044] The height adjustment bolt (130) may be provided to adjust the height of the moving part (200) or to support the moving part (200).

[0045] In addition, the moving part (200) can be moved up or down in the upward or downward direction depending on the rotation of the height adjustment bolt (130).

[0046] The first through hole (140) may be formed in the shape of a groove in which a portion of the inner edge of the fixing plate (110) is cut.

[0047] Additionally, the first through hole (140) may be formed so that the horizontal rod (382) of the locking handle part (380), which will be described later, can be inserted through it.

[0048] At this time, when the locking handle part (380) is rotated at a certain angle, the horizontal rod (382) is engaged with the lower surface of the fixing plate (110), so that the locked state of the cover part (300) can be maintained.

[0050] The above moving part (200) may include a support plate (210), a locking part (220), a second through hole (230), a rotation prevention groove (240), and a seating groove (250).

[0051] The support plate (210) is formed in a shape corresponding to the fixing plate (110) of the fixing part (100) and can be formed along the inner circumference direction.

[0052] The above-mentioned catch portion (220) may be formed protruding from the upper part of the support plate (210), and a sawtooth shape or an uneven shape having a certain length may be formed on the upper part.

[0053] Additionally, the above-mentioned locking part (220) is formed so that a work tool (500) can be locked and coupled, and can be configured so that the cover part (300) can be rotated using the work tool (500).

[0054] That is, when it is difficult to rotate the cover part (300) by external force alone while it is seated in the seating groove (250), the cover part (300) can be rotated more easily by the lever action of the work tool (500).

[0055] The second through hole (230) may be formed at a position corresponding to the first through hole (140), and may be formed so that the horizontal rod (382) of the locking handle part (380) described later can be inserted through it.

[0056] The above anti-rotation groove (240) may be formed as a polygonal indentation on the bottom surface of the support plate (210) and may be positioned at a location corresponding to the height adjustment bolt (130).

[0057] Additionally, the head of the height adjustment bolt (130) can be inserted and seated in the anti-rotation groove (240), thereby preventing the height adjustment bolt (130) from rotating due to external impact or vibration.

[0058] The above-mentioned seating groove (250) is formed so that the lower part of the cover portion (300) is seated thereon, and can be configured so that the cover portion (300) can be stably supported.

[0060] The above cover portion (300) may include an insertion hole (310), a coupling groove (320), an opening (330), a rotating tooth portion (340), a side groove (350), a lower groove (360), a cushioning packing (370), and a locking handle portion (380).

[0061] The insertion hole (310) may be formed in the shape of a through hole of a certain size at one end of the cover portion (300), and may be formed at a position corresponding to the locking tooth portion (220) so that a work tool (500) can be inserted.

[0062] The above coupling groove (320) may be formed at a certain distance apart on both sides of the cover portion (300), and may be formed so that the vertical rod (381) of the locking handle portion (380) can be inserted through it.

[0063] Additionally, the connecting rod (383) may be formed to be supported by being caught on the upper surface of the cover portion (300).

[0064] That is, when a pair of vertical rods (381) of the locking handle portion (380) penetrate the cover portion (300), the connecting rod (383) is supported by being hooked on the upper part of the cover portion (300) so that the locking handle portion (380) is not detached.

[0065] The opening (330) may be formed by cutting a part of the outer wall of the cover portion (300), and may be formed to prevent interference with the locking tooth portion (220) when the cover portion (300) is rotated.

[0066] The above-mentioned rotating tooth portion (340) may be formed at the top of the above-mentioned opening (330) and may be formed to engage with the above-mentioned locking tooth portion (220).

[0067] Accordingly, the above cover part (300) can be prevented from rotating arbitrarily due to external impact or vibration.

[0068] The above side groove (350) may be formed on the outer surface of the cover portion (300), and the cushioning packing (370) may be inserted therein.

[0069] The lower groove (360) may be formed in the lower part of the cover portion (300), and the cushioning packing (370) may be inserted therein.

[0070] The above cushioning packing (370) is inserted and fixed in the side groove (350) and the lower groove (360), respectively, to mitigate shock and vibration applied to the cover portion (300).

[0071] The above-mentioned locking handle portion (380) may include a pair of vertical rods (381) having a certain length, a horizontal rod (382) formed to protrude outward at a right angle from the bottom of the vertical rods (381), and a connecting rod (383) connecting the pair of vertical rods (381).

[0072] In addition, the horizontal rod (382) can be engaged with the lower surface of the fixing plate (110) according to the rotation of the locking handle part (380) while passing through the first through hole (140) and the second through hole (230), thereby maintaining the locked state of the cover part (300).

[0073] The above deformation prevention part (400) may include a movable member (410), a connecting member (420), and an elastic member (430).

[0074] The above-mentioned moving member (410) may be formed in a circular or polygonal nut shape and may be screw-coupled to the height adjustment bolt (130) so as to move upward or downward depending on rotation.

[0075] The above connecting member (420) may be extended and formed on each side of the movable member (410), and screw threads may be formed on the outer surface.

[0076] The above elastic part (430) may be formed in a "C" shape to have a certain elasticity and may be configured to be screw-coupled to the above connecting member (420) so as to be movable in the left or right direction.

[0077] Additionally, the elastic member (430) is positioned between the lower surface of the fixed plate (110) and the upper surface of the support plate (210) to elastically support the support plate (210).

[0078] Accordingly, when an external force is applied to the moving part (200), the elastic part (430) can disperse the load concentrated on the height adjustment bolt (130) to prevent deformation of the support plate (210).

[0079] In addition, the elastic part (430) can improve the durability of the moving part (200) by absorbing and mitigating vibrations caused by external impact or repeated loads.

[0080] That is, when a load is applied to the cover part (300) and the moving part (200) due to vehicle traffic or external impact, the elastic part (430) can absorb and disperse the impact through elastic restoring force to suppress bending or sagging of the support plate (210).

[0081] In addition, the elastic part (430) can reduce shaking of the moving part (200) by correcting the gap between the fixed plate (110) and the support plate (210).

[0083] Hereinafter, the installation state and operational effects of the handle-operated locking and floating manhole cover of the present invention will be described.

[0084] First, the worker can position the fixed part (100) on the upper part of the sewage pipe or drain pipe, and then use a fastening means to fix and install the fixed part (100).

[0085] Afterwards, the moving part (200) can be slidably coupled to the fixed part (100).

[0086] Next, the operator can place the cover part (300) into the seating groove (250) of the moving part (200) while holding the connecting rod (383) of the locking handle part (380).

[0087] At this time, the horizontal rod (382) of the catch handle part (380) can be arranged to sequentially penetrate the second through hole (230) and the first through hole (140).

[0088] Afterward, the operator can directly grasp the locking handle (380) and rotate the cover (300) at a certain angle.

[0089] Alternatively, after inserting the work tool (500) into the insertion hole (310), the cover part (300) can be rotated more easily by using the lever principle by engaging it with the locking part (220).

[0090] In this way, when the cover portion (300) is rotated at a certain angle, the horizontal rod (382) of the locking handle portion (380) can be positioned to be disengaged from the position of the first through hole (140).

[0091] Accordingly, the horizontal bar (382) is maintained in a state of being hooked onto the lower surface of the fixing plate (110), and the cover part (300) can be maintained in a locked state.

[0092] Therefore, even if external shock or vibration occurs, the cover part (300) can be prevented from rotating or detaching arbitrarily.

[0093] In addition, if upward pressure is generated due to an increase in water pressure inside the sewage pipe, flooding, backflow, or underground gas explosion, the cover part (300) may be floated upward.

[0094] At this time, the horizontal rod (382) of the catch handle part (380) remains in a state of being caught on the lower surface of the fixing plate (110), so that the cover part (300) can be prevented from being completely detached to the outside.

[0095] In other words, the present invention can prevent safety accidents caused by the scattering or detachment of manhole covers.

[0096] Meanwhile, when a worker enters the manhole or intends to perform internal inspection and maintenance work, the work tool (500) can be inserted into the insertion hole (310) and engaged with the locking part (220), and then the cover part (300) can be rotated in the reverse direction.

[0097] Accordingly, the horizontal rod (382) of the catch handle portion (380) can be moved again to a position corresponding to the first through hole (140) and the second through hole (230).

[0098] Afterwards, the worker can easily separate the cover part (300) by gripping the connecting rod (383) and lifting the cover part (300) upward.

[0099] In addition, if the ground height and the installation height of the sewage pipe are different, the worker can adjust the height of the moving part (200) by rotating the height adjustment bolt (130).

[0100] That is, the moving part (200) can be moved upward or downward depending on the rotation of the height adjustment bolt (130), and accordingly, the installation height of the cover part (300) can be adjusted to match the height of the surrounding ground.

[0101] Therefore, the present invention can respond to various installation environments and can improve vehicle traffic stability and pedestrian safety by minimizing the occurrence of step differences in manhole covers.

[0102] In addition, the deformation prevention part (400) can prevent deformation of the support plate (210) by elastically supporting the load and impact applied to the moving part (200).

[0103] That is, the elastic part (430) can disperse and absorb concentrated loads caused by vehicle loads or external impacts, thereby improving the durability of the moving part (200) and enabling stable use for a long period of time.

[0105] Although a preferred embodiment of the present invention has been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without altering its technical concept or essential features. Therefore, the embodiment described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0107] 100; Fixing part 110; Fixing plate 120; fastening hole 130; height adjustment bolt 140; first through hole 200; movable part 210; support plate 220; catch part 230; second through hole 240; anti-rotation groove 250; seating groove 300; cover part 310; insertion hole 320; coupling groove 330; opening 340; rotating tooth 350; Side groove 360; Bottom groove 370; cushioning packing 380; locking handle part 381; Vertical bar 382; Horizontal bar 383; connecting rod 400; deformation prevention part 410; movable bar 420; connecting bar 430; Elastic part 500; Working tool

Claims

Claim 1 A fixed part (100) that is fastened and fixed to a sewage pipe or drain pipe; a moving part (200) that is coupled to the outside of the fixed part (100) so as to be movable up and down; The device includes a cover portion (300) that is seated on the movable portion (200); a first through hole (140) is formed in the fixed portion (100), and a second through hole (230) is formed in the movable portion (200) at a position corresponding to the first through hole (140); the cover portion (300) is provided with a locking handle portion (380); the locking handle portion (380) includes a pair of vertical rods (381), a horizontal rod (382) protruding outwardly from the lower end of the vertical rods (381), and a connecting rod (383) connecting the vertical rods (381); the movable portion (200) includes a support plate (210) and a locking tooth portion (220); the locking tooth portion (220) is in a toothed shape so that a work tool (500) for rotating the cover portion (300) can be locked and coupled. A handle-operated locking and floating manhole cover characterized in that the horizontal bar (382) is formed and, as the cover part (300) rotates at a certain angle while penetrating the first through hole (140) and the second through hole (230), is engaged with the lower surface of the fixing plate (110) formed on the fixing part (100) to prevent the cover part (300) from detaching. Claim 2 A handle-operated locking and floating manhole cover, characterized in that, in claim 1, the fixing part (100) includes a fixing plate (110), a fastening hole (120), and a height adjustment bolt (130), and the moving part (200) moves upward or downward according to the rotation of the height adjustment bolt (130) so that the height of the manhole cover is adjusted. Claim 3 delete Claim 4 A handle-operated locking and floating manhole cover, characterized in that, in the first paragraph, an insertion hole (310) into which the work tool (500) is inserted is formed in the cover portion (300), and the work tool (500) is inserted through the insertion hole (310) and rotates the cover portion (300) by the lever principle while in a state of being engaged with the locking tooth portion (220). Claim 5 A handle-operated locking and floating manhole cover, characterized in that, in the first paragraph, an opening (330) and a rotating tooth (340) are formed in the cover portion (300), and the rotating tooth (340) engages with the locking tooth (220) formed in the moving portion (200) to prevent arbitrary rotation of the cover portion (300). Claim 6 A handle-operated locking and floating manhole cover, characterized in that, in the first paragraph, a side groove (350) and a lower groove (360) are formed in the cover portion (300), and a cushioning packing (370) is inserted and fixed in the side groove (350) and the lower groove (360) to mitigate shock and vibration. Claim 7 A handle-operated locking and floating manhole cover according to claim 1, comprising: a deformation prevention part (400) which is fastened to a height adjustment bolt (130) provided in the fixed part (100) to prevent deformation of the moving part (200); wherein the deformation prevention part (400) comprises a moving member (410), a connecting member (420), and an elastic part (430); wherein the moving member (410) is screw-coupled to the height adjustment bolt (130); and the elastic part (430) is positioned between the fixed part (100) and the moving part (200) to elastically support external impact or load, thereby dispersing the load concentrated on the moving part (200) and preventing deformation of the moving part (200).

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