Manhole cover safety protection device suitable for inclined and horizontal placement state and use method thereof

Abstract

The application discloses a kind of well lid safety protection device and use method suitable for inclined and horizontal placement state, device includes shaft, well lid body, two anchoring components, two pull rings and two sections of pull rope, the hollow anchoring plate is equipped with in both sides of well lid body in the application, and recessed hidden method is used, i.e. first recess, second recess is arranged, the hollow anchoring plate is embedded below ground, can avoid convex ground interference passing, recessed form increases drainage effect, by setting pull ring, and by pull rope is connected, when well lid body is in inclined state, by the connecting point of pull ring and pull rope, the connecting point of two hollow anchoring plates and corresponding section pull rope, based on triangle stability principle, well lid body is supported by triangle, so that it is relatively fixed, with high popularization value.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a safety protection device for manhole covers that adapts to both inclined and horizontal placement, and a method of using it. Background Technology

[0002] Coastal cities are prone to urban flooding due to heavy rainfall. At such times, it is necessary to open manhole covers for flood discharge and drainage. However, since the manhole covers are not fixed, they are somewhat movable. Under such circumstances, accidents often occur where people accidentally step on the manhole covers and fall into them and die. In addition, accidents also frequently occur where manhole covers jump or shift due to heavy loads, causing people to be injured.

[0003] To address the aforementioned incidents, urban manhole covers are primarily of two types: those fixed at one end and capable of being lifted entirely, and those movable with an internal safety net. However, the former has a very low safety factor and is more geared towards theft prevention; the latter requires the entire cover to be lifted quickly during floods, which is laborious and dangerous; and both types carry the risk of displacement due to unforeseen circumstances. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, this invention provides a manhole cover safety protection device and its usage method that adapts to both tilted and horizontal placement, thereby improving the safety factor of manhole covers during rainy weather drainage and increasing their daily resistance to displacement.

[0005] To achieve the above objectives, the present invention provides a manhole cover safety protection device adaptable to both tilted and horizontal placement states, comprising:

[0006] The shaft has a support platform at the wellhead;

[0007] The manhole cover body is placed on the support base and can rotate relative to the support base. The manhole cover body has a horizontal state that is placed on the support base to close the manhole opening and an inclined state that is set at a certain angle to the cross-section of the manhole opening by rotating relative to the support base to open the manhole opening.

[0008] Two anchoring components are respectively located on both sides of the manhole cover body along the radial direction. Each anchoring component includes a first groove opened in the ground on the corresponding side and a hollow anchoring plate pre-embedded in the first groove.

[0009] Two pull rings are slidably inserted into both ends of the manhole cover body along the radial direction and are set one-to-one with the two hollow anchor plates;

[0010] Two tie ropes are provided. One end of one tie rope is connected to one of the hollow anchor plates, and the other end is connected to the pull ring located on the same side. One end of the other tie rope is connected to the other hollow anchor plate, and the other end is selectively connected to either of the two pull rings depending on the state of the manhole cover body.

[0011] Preferably, a second groove is provided below each of the first grooves in the ground, and a notch is provided on the support base at the position corresponding to the first groove and the second groove.

[0012] Preferably, the manhole cover body has two slots at both ends along the radial direction, which correspond one-to-one with the two pull rings. Each slot has a fixed shaft fixedly installed in it, and the pull ring is inserted into the slot and sleeved on the outside of the corresponding fixed shaft.

[0013] Preferably, each of the pull rings has a groove for the fixed shaft to slide relative to the pull ring when the pull ring is inserted into the slot.

[0014] A method of using a manhole cover safety protection device adaptable to both tilted and horizontal placement states, characterized in that it is implemented through the aforementioned manhole cover safety protection device, and the method of use includes:

[0015] A support base is installed at the wellhead of the shaft, and the well cover body is placed on the support base;

[0016] Two first grooves are opened in the ground on both sides of the manhole cover body along the radial direction, and a hollow anchor plate is pre-embedded in each first groove;

[0017] Two pull rings are inserted into both ends of the manhole cover body along the radial direction, corresponding to the two hollow anchor plates, and the pull rings can slide relative to the manhole cover body.

[0018] Two sections of tie rope are connected between the two pre-embedded hollow anchor plates and the corresponding pull rings, respectively. The manhole cover body is tied together by the two sections of tie rope, so that the manhole cover body is in a horizontal state and the manhole opening is sealed.

[0019] Pulling one of the rings causes the manhole cover to rotate relative to the support base, so that the manhole cover is at a certain angle to the cross-section of the manhole opening, thus opening the manhole.

[0020] Untie one end of the other tie rope that is connected to another pull ring, and tie it to one of the pull rings to provide triangular support for the tilted manhole cover body through the connection point between one of the pull rings and the tie rope, and the connection points between the two hollow anchor plates and the corresponding tie rope sections.

[0021] By adopting the above technical solution, the present invention has the following beneficial effects:

[0022] 1) By setting perforated anchor plates on both sides of the manhole cover body and adopting a recessed concealed method, that is, setting a first groove and a second groove, the perforated anchor plates are pre-buried below the ground, which can avoid the interference of the raised ground to pass through, and the recessed form increases the drainage effect.

[0023] 2) By setting pull rings and connecting them with tie ropes, when the manhole cover body is in an inclined state, the manhole cover body is supported in a triangular shape by the connection point between the pull ring and the tie rope, and the connection point between the two hollow anchor plates and the corresponding section of the tie rope, based on the principle of triangular stability, so as to fix it relatively. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a perspective view of the manhole cover safety protection device adapted to tilted and horizontal placement in an embodiment of the present invention when the manhole cover body is tilted.

[0026] Figure 2 This is a side view of the manhole cover safety protection device adapted to tilted and horizontal placement in an embodiment of the present invention when the manhole cover body is tilted.

[0027] Figure 3 This is a side view of the manhole cover safety protection device adapted to tilted and horizontal placement in an embodiment of the present invention when the manhole cover body is in a horizontal state.

[0028] Figure 4 This is a schematic diagram of the connection between the pull ring and the fixed shaft in an embodiment of the present invention.

[0029] The correspondence between the numbers in the attached diagram is as follows:

[0030] 1- Manhole cover body; 2- Pull ring; 21- Slide groove; 3- First groove; 4- Second groove; 5- Hollowed-out anchor plate; 6- Tie rope; 61- One section of the tie rope; 62- The other section of the tie rope; 7- Support base; 71- Notch; 8- Slot; 9- Fixed shaft. Detailed Implementation

[0031] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Please see Figures 1 to 4 As shown, this embodiment of the invention provides a manhole cover safety protection device adaptable to both inclined and horizontal placement states, including a manhole passage, a manhole cover body 1, two anchoring components, two pull rings 2, and two sections of tie rope 6; wherein, a support 7 is provided at the manhole opening within the manhole passage; the manhole cover body 1 is placed on the support 7 and can rotate relative to the support 7, the manhole cover body 1 has a horizontal state where it is placed on the support 7 to close the manhole opening, and an inclined state where it is set at a certain angle to the cross-section of the manhole opening to open the manhole opening by rotating relative to the support 7; the two anchoring components are respectively provided along the manhole cover body 1. On both radial sides, each anchoring component includes a first groove 3 opened in the ground on the corresponding side and a hollow anchoring plate 5 pre-embedded in the first groove 3; two pull rings 2 are slidably inserted into the two ends of the manhole cover body 1 along the radial direction and are set one-to-one with the two hollow anchoring plates 5; one end of one of the two tie ropes 61 is connected to one of the hollow anchoring plates 5 and the other end is connected to the pull ring 2 located on the same side; one end of the other tie rope 62 is connected to the other hollow anchoring plate 5 and the other end is selectively connected to any one of the two pull rings 2 according to the state of the manhole cover body 1.

[0033] Furthermore, in this embodiment, a second groove 4 is provided below each first groove 3 in the ground, and a notch 71 is provided on the support 7 at the corresponding positions of the first groove 3 and the second groove 4. It should be noted that in this embodiment, the hollow anchor plate 5 is made of metal steel plate. By setting the first groove 3, it can be buried below the ground to avoid interference with concentricity due to protrusion from the ground, and at the same time, it can also protect the anchor point. Setting the second groove 4 below the first groove 3 can suspend the hollow anchor plate 5, forming a drainage space at the bottom to reduce the erosion and damage of the hollow anchor plate 5 by rainwater.

[0034] Furthermore, in this embodiment, two slots 8 are provided at both ends of the manhole cover body 1 along the radial direction, corresponding one-to-one with the two pull rings 2. A fixed shaft 9 is fixedly installed in each slot 8, and the pull ring 2 is inserted into the slot 8 and sleeved on the outside of the corresponding fixed shaft 9. Preferably, each pull ring 2 is provided with a groove 21 for the fixed shaft 9 to slide relative to the pull ring 2 when the pull ring is inserted into the slot 8. It should be noted that, through the arrangement of the slots 8, fixed shafts 9, and grooves, the pull ring 2 can form an outwardly convex tie point when the manhole cover body 1 is in an inclined state, and when the manhole cover body 1 is in a horizontal state, the groove 21 allows the pull ring 2 to slide relative to the fixed shaft 9 when inserted into the slot 8, forming an inwardly concealed tie point (i.e., not protruding from the surface of the manhole cover body).

[0035] This invention also discloses a method for using a manhole cover safety protection device adapted to both tilted and horizontal placement states. This is achieved through the aforementioned manhole cover safety protection device adapted to both tilted and horizontal placement states. The method of use includes:

[0036] A support base is installed at the wellhead of the shaft, and the well cover body is placed on the support base;

[0037] Two first grooves are opened in the ground on both sides of the manhole cover body along the radial direction, and a hollow anchor plate is pre-embedded in each first groove;

[0038] Two pull rings are inserted into both ends of the manhole cover body along the radial direction, corresponding to the two hollow anchor plates, and the pull rings can slide relative to the manhole cover body.

[0039] Two sections of tie rope are connected between the two pre-embedded hollow anchor plates and the corresponding pull rings. The two sections of tie rope are used to tie the manhole cover body, thereby keeping the manhole cover body in a horizontal state and sealing the manhole opening.

[0040] Pulling one of the rings causes the manhole cover to rotate relative to the support base, so that the manhole cover is at a certain angle (45° in this embodiment) to the cross-section of the manhole opening, thus achieving an open tilted state.

[0041] Untie one end of the other tie rope that is connected to another pull ring, and tie it to one of the pull rings. This creates a triangular support for the tilted manhole cover body through the connection point between one of the pull rings and the tie rope, and the connection points between the two hollow anchor plates and the corresponding tie rope sections. In other words, the manhole cover body is stabilized through the three connection points by utilizing the principle of the stability of a triangle.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A manhole cover safety protection device adaptable to both tilted and horizontal placement, characterized in that, include: The shaft has a support platform at the wellhead; The manhole cover body is placed on the support base and can rotate relative to the support base. The manhole cover body has a horizontal state that is placed on the support base to close the manhole opening and an inclined state that is set at a certain angle to the cross-section of the manhole opening by rotating relative to the support base to open the manhole opening. Two anchoring components are respectively located on both sides of the manhole cover body along the radial direction. Each anchoring component includes a first groove opened in the ground on the corresponding side and a hollow anchoring plate pre-embedded in the first groove. Two pull rings are slidably inserted into both ends of the manhole cover body along the radial direction and are set one-to-one with the two hollow anchor plates; Two tie ropes are provided. One end of one tie rope is connected to one of the hollow anchor plates, and the other end is connected to the pull ring located on the same side. One end of the other tie rope is connected to the other hollow anchor plate, and the other end is selectively connected to either of the two pull rings depending on the state of the manhole cover body.

2. The manhole cover safety protection device adaptable to tilted and horizontal placement states as described in claim 1, characterized in that: A second groove is formed below each of the first grooves in the ground, and a notch is formed on the support base at the position corresponding to the first groove and the second groove.

3. The manhole cover safety protection device adaptable to tilted and horizontal placement states as described in claim 1, characterized in that: The manhole cover body has two slots at both ends along the radial direction, which correspond one-to-one with the two pull rings. Each slot has a fixed shaft fixedly installed in it, and the pull ring is inserted into the slot and sleeved on the outside of the corresponding fixed shaft.

4. The manhole cover safety protection device adaptable to tilted and horizontal placement states as described in claim 3, characterized in that: Each of the pull rings has a groove for the fixed shaft to slide relative to the pull ring when the pull ring is inserted into the slot.

5. A method of using a manhole cover safety protection device adaptable to tilted and horizontal placement, characterized in that, This is achieved through the manhole cover safety protection device as described in claim 1, which adapts to both tilted and horizontal placement states, and the method of use includes: A support base is installed at the wellhead of the shaft, and the well cover body is placed on the support base; Two first grooves are opened in the ground on both sides of the manhole cover body along the radial direction, and a hollow anchor plate is pre-embedded in each first groove; Two pull rings are inserted into both ends of the manhole cover body along the radial direction, corresponding to the two hollow anchor plates, and the pull rings can slide relative to the manhole cover body. Two sections of tie rope are connected between the two pre-embedded hollow anchor plates and the corresponding pull rings, respectively. The manhole cover body is tied together by the two sections of tie rope, so that the manhole cover body is in a horizontal state and the manhole opening is sealed. Pulling one of the rings causes the manhole cover to rotate relative to the support base, so that the manhole cover is at a certain angle to the cross-section of the manhole opening, thus opening the manhole. Untie one end of the other tie rope that is connected to another pull ring, and tie it to one of the pull rings to provide triangular support for the tilted manhole cover body through the connection point between one of the pull rings and the tie rope, and the connection points between the two hollow anchor plates and the corresponding tie rope sections.

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