Installation prompting device for well lid anti-falling net

Abstract

The utility model relates to the technical field of well lids, and discloses a well lid anti-falling net installation prompting device which comprises a well ring, a well lid, an anti-falling net, an installation base and an installation prompting assembly. The well ring is provided with a mounting part, and the well lid is rotationally connected to the mounting part; the walling crib comprises a first annular wall, a second annular wall and a step wall which is located between the first annular wall and the second annular wall and is horizontally arranged; the second annular wall is provided with a plurality of mounting seats, and the anti-falling nets are mounted on the mounting seats; the installation prompting assembly comprises a rotating piece, a spring, an abutting piece, a rotating shaft and two installation plates. The two mounting plates are arranged on the second annular wall, and the rotating piece is rotationally arranged between the two mounting plates through a rotating shaft; the rotating piece comprises a first part and a second part; one end of the second part is connected with one end of the spring; the other end of the spring is connected with an abutting piece which abuts against the second annular wall. A well lid outer edge is arranged on the inner side of the well lid. According to the technical scheme provided by the utility model, the installation condition of the anti-falling net can be prompted.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an installation prompting device for a manhole cover anti-falling net. Background Art

[0002] Manhole covers are a common component of urban infrastructure, mainly used to cover and protect entrances to underground facilities, such as water supply pipes, sewers, cable trenches, telecommunication pipelines, gas pipelines, etc., to prevent people or objects from falling. Under the manhole cover, there is generally a fall prevention net to prevent pedestrians, vehicles or objects from falling into the well when the manhole cover is missing, damaged or opened.

[0003] Since the anti-fall net is set under the manhole cover, when the manhole cover is closed, the installation status of the anti-fall net is not easy to be found. If the anti-fall net is not installed or the anti-fall net is not installed properly, it will bring great safety hazards to pedestrians. Under the existing technology, if you want to check the installation status of the anti-fall net, you must first open the manhole cover and then check it one by one, which is time-consuming and labor-intensive and inefficient. Therefore, the utility model proposes an installation prompt device for the manhole cover anti-fall net, which can prompt the installation status of the anti-fall net. Utility Model Content

[0004] The main purpose of the utility model is to provide an installation prompting device for a manhole cover anti-falling net, which is used for prompting the installation status of the anti-falling net.

[0005] To achieve the above-mentioned purpose, the installation reminder device of the manhole cover anti-fall net proposed in the utility model comprises a manhole ring, a manhole cover, an anti-fall net, a mounting seat and an installation reminder assembly; the manhole ring is provided with a mounting portion, and the manhole cover is rotatably connected to the mounting portion; the manhole ring comprises a first annular wall and a second annular wall, and a stepped wall which is horizontally arranged between the first annular wall and the second annular wall; the first annular wall is higher than the second annular wall, and the first annular wall and the second annular wall both share a central axis with the manhole ring; the second annular wall is provided with a plurality of mounting seats, and the anti-fall net is installed on the mounting seats; the installation reminder assembly comprises a rotating member, a spring, an abutment member, a rotating shaft and two mounting plates; the two mounting plates are parallel to each other and are arranged on the second annular wall at a distance, and the rotating member is rotatably arranged on the two annular walls through the rotating shaft. The cam is connected to the second end of the second part and the second end of the second part is connected to the second end of the second part. The cam is connected to the second end of the second part and the second end of the second part is connected to the second end of the second part. The inner side of the manhole cover is provided with an outer edge of the manhole cover. When the anti-fall net is installed on the mounting seat, the outer edge of the anti-fall net abuts against the second part and the first part is rotated to the first position, at which time the manhole cover can be rotated until the outer edge of the manhole cover abuts against the step wall, and at this time the outer surface of the manhole cover is flush with the top of the manhole ring. When the anti-fall net is not installed on the mounting seat, the first part is in the second position. At this time, the first part can block the outer edge of the manhole cover so that the outer edge of the manhole cover cannot abut against the step wall.

[0006] Preferably, the mounting seat is provided with a stepped groove; the stepped groove includes a first groove and a second groove; an opening is provided at the upper portion of the first groove, and the lower portion of the first groove is connected to the second groove; a connecting protrusion is provided on the side of the anti-fall net; the connecting protrusion can enter the first groove through the opening; when the anti-fall net is rotated by a preset angle, the connecting protrusion can enter the second groove from the first groove.

[0007] Preferably, there are multiple mounting seats; there are multiple connecting protrusions, and the connecting protrusions are distributed symmetrically with respect to the center of the anti-fall net; the connecting protrusions correspond to the mounting seats one by one; and the connecting protrusions are connected to the corresponding mounting seats.

[0008] Preferably, the number of the installation prompt components is 2; the two installation prompt components are symmetrically arranged on both sides of the installation portion.

[0009] Preferably, the mounting seat is located below the mounting plate, so that when the anti-falling net is installed on the mounting seat, the outer edge of the anti-falling net can abut against the end of the second part away from the first part.

[0010] Preferably, when the first portion is in the first position, the manhole cover can be rotated until the outer edge of the manhole cover abuts against the first annular wall, and at this time the outer surface of the manhole cover is flush with the top of the manhole ring.

[0011] Preferably, the second portion is provided with a connecting portion; the rotating shaft passes through one of the mounting plates, the connecting portion and the other mounting plate in sequence, so that the rotating member is rotatably connected between the two mounting plates.

[0012] Preferably, a length of the second portion located at a side of the connecting portion close to the first portion is smaller than a length of the second portion located at a side of the connecting portion far from the first portion.

[0013] Preferably, the thickness of the first portion is greater than the thickness of the second portion.

[0014] Preferably, the number of the mounting seats and the number of the connecting protrusions are both 4.

[0015] In the technical solution of the utility model, the installation prompt component and the mounting seat are both arranged on the second annular wall, and when the anti-fall net is installed on the mounting seat, the outer edge of the anti-fall net can push the rotating member to rotate around the rotating shaft and compress the spring, and when the first part is rotated to the first position, the manhole cover can be closed, and when the manhole cover is closed, the outer edge of the manhole cover abuts against the step wall, and the outer surface of the manhole cover is flush with the top of the manhole ring; when the anti-fall net leaves the mounting seat, the elastic force of the spring pushes the rotating member to rotate around the rotating shaft, so that the first part is in the second position, at which time the first part abuts against the step wall, and the manhole cover cannot be rotated until the outer edge of the manhole cover abuts against the step wall, so the manhole cover cannot be closed, and the manhole cover exceeds the upper part of the manhole ring, thereby prompting that the anti-fall net is not in the installation position. To sum up, the installation reminder device of the manhole cover anti-fall net is equipped with the installation reminder component, so that when the anti-fall net is installed, the manhole cover can be closed normally. When the anti-fall net is not installed, the manhole cover is higher than the road surface and cannot be closed normally, thereby providing a reminder to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1A schematic diagram of the structure of a manhole ring of the installation prompt device of the manhole cover anti-falling net of the utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the installation prompt device of the manhole cover anti-falling net of the utility model along AA and the anti-falling net is not installed (the manhole cover is not shown);

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the installation prompt device of the manhole cover anti-fall net of the utility model along AA and the installation of the anti-fall net;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the installation prompt device of the manhole cover anti-fall net of the utility model along BB and the anti-fall net is not installed;

[0021] Figure 5 The utility model is a schematic diagram of the structure of the anti-fall net of the installation prompt device of the manhole cover anti-fall net.

[0022] Description of Figure Numbers:

[0023] 1-well ring; 11-installation part; 2-well cover; 21-outer edge of well cover; 3-anti-fall net; 31-connecting protrusion; 4-mounting seat; 41-first groove; 42-second groove; 5-installation reminder assembly; 51-mounting plate; 52-rotating member; 521-first part; 522-second part; 523-connecting part; 53-spring; 54-abutment member; 55-rotating shaft.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0030] The utility model provides an installation prompting device for a manhole cover anti-falling net.

[0031] Please refer to Figures 1 to 5The installation reminder device of the manhole cover anti-fall net comprises a manhole ring 1, a manhole cover 2, an anti-fall net 3, a mounting seat 4 and an installation reminder assembly 5; the manhole ring 1 is provided with a mounting portion 11, and the manhole cover 2 is rotatably connected to the mounting portion 11; the manhole ring 1 comprises a first annular wall and a second annular wall, and a stepped wall disposed horizontally between the first annular wall and the second annular wall; the first annular wall is higher than the second annular wall, and the first annular wall and the second annular wall both share a central axis with the manhole ring 1; the second annular wall is provided with a plurality of mounting seats 4, and the anti-fall net 3 is mounted on the mounting seat 4; the installation reminder assembly 5 comprises a rotating member 52, a spring 53, an abutting member 54, a rotating shaft 55 and two mounting plates 51; the two mounting plates 51 are parallel to each other and are disposed at a distance from each other on the second annular wall, and the rotating member 52 is rotatably disposed between the two mounting plates 51 through the rotating shaft 55; the rotating member 52 includes a first part 521 and a second part 522 connected to one end of the first part 521; one end of the second part 522 away from the first part 521 is connected to one end of the spring 53; the other end of the spring 53 is connected to the abutment 54, and the abutment 54 abuts against the second annular wall; the inner side of the manhole cover 2 is provided with a manhole cover outer edge 21; when the anti-falling net 3 is installed on the mounting seat 4, the outer edge of the anti-falling net 3 abuts against the second part, and the first part is rotated to the first position, at which time the manhole cover 2 can be rotated until the manhole cover outer edge 21 abuts against the step wall, and at this time the outer surface of the manhole cover 2 is flush with the top of the manhole ring 1; when the anti-falling net 3 is not installed on the mounting seat 4, the first part 521 is in the second position, at which time the first part 521 can block the manhole cover outer edge 21 so that the manhole cover outer edge 21 cannot abut against the step wall.

[0032] In the technical solution of the utility model, the installation prompt component 5 and the mounting seat 4 are both arranged on the second annular wall. When the anti-falling net 3 is installed on the mounting seat 4, the outer edge of the anti-falling net 3 can push the rotating member 52 to rotate around the rotating shaft 55 and compress the spring 53. When the first part 521 is rotated to the first position, the manhole cover 2 can be closed. When the manhole cover 2 is closed, the outer edge 21 of the manhole cover abuts against the step wall, and the outer surface of the manhole cover 2 is flush with the top of the manhole ring 1; when the anti-falling net 3 leaves the mounting seat 4, the elastic force of the spring 53 pushes the rotating member 52 to rotate around the rotating shaft 55, so that the first part 521 is in the second position. At this time, the first part 521 abuts against the step wall, and the manhole cover 2 cannot be rotated until the outer edge 21 of the manhole cover abuts against the step wall. Therefore, the manhole cover 2 cannot be closed, and the manhole cover 2 exceeds the upper part of the manhole ring 1, thereby prompting that the anti-falling net 3 is not in the installation position. To sum up, the installation reminder device of the manhole cover anti-fall net is equipped with the installation reminder component 5, so that when the anti-fall net 3 is installed, the manhole cover 2 can be closed normally. When the anti-fall net 3 is not installed, the manhole cover 2 is higher than the road surface and cannot be closed normally, thereby providing a reminder to the staff.

[0033] Specifically, the manhole ring 1, the manhole cover 2 and the anti-fall net 3 are all made of ductile iron, and the mounting seat 4 and the two mounting plates 51 are welded to the manhole ring 1; an obtuse angle is formed between the first part 521 and the second part 522, and the end of the second part 522 away from the first part 521 is located on the side of the mounting plate 51 away from the second annular wall; the height of the manhole cover outer edge 21 is consistent with the height of the first annular wall; the first part 521 is a rectangular block, and the second part 522 is a rectangular plate, and both sides of the first part 521 are rounded to reduce the damage caused by the collision and contact between the manhole cover outer edge 21 and the first part 521.

[0034] Furthermore, when the first part 521 is in the second position, the first part 521 abuts against the first annular wall, and the side wall of the first part 521 abutting against the first annular wall may be an arc-shaped wall; an anti-collision pad is provided on the upper part of the first part 521, and the anti-collision pad may be a rubber pad; the abutment 54 may be connected to the second annular wall.

[0035] Preferably, the mounting seat 4 is provided with a stepped groove; the stepped groove includes a first groove 41 and a second groove 42; an opening is provided at the upper portion of the first groove 41, and the lower portion of the first groove 41 is connected to the second groove 42; a connecting protrusion 31 is provided on the side of the anti-fall net 3; the connecting protrusion 31 can enter the first groove 41 through the opening; when the anti-fall net 3 is rotated to a preset angle, the connecting protrusion 31 can enter the second groove 42 from the first groove 41.

[0036] The anti-falling net 3 is arranged in the stepped groove arranged in the mounting seat 4 through the connecting protrusion 31, so that the anti-falling net 3 can be firmly installed and the anti-falling net 3 can be easily installed and removed. In this embodiment, the opening is opened at the upper part of the left side of the first groove 41, and after the connecting protrusion 31 enters the first groove 41 through the opening, the anti-falling net 3 is rotated counterclockwise, so that the connecting protrusion 31 enters the second groove 42, thereby completing the installation of the anti-falling net 3.

[0037] Furthermore, a locking device may be provided at the opening; the locking device is used to close the opening after the anti-falling net 3 is installed on the mounting seat 4 to prevent the anti-falling net 3 from being separated from the mounting seat 4. Specifically, the locking device may be a block, which is movably clamped on the opening.

[0038] Preferably, there are multiple mounting seats 4; there are multiple connecting protrusions 31, and the connecting protrusions 31 are distributed symmetrically with respect to the center of the anti-fall net 3; the connecting protrusions 31 correspond one-to-one to the mounting seats 4; and the connecting protrusions 31 are connected to the corresponding mounting seats 4.

[0039] Specifically, the mounting seats 4 are symmetrically distributed with the center of the circle where the well ring 1 is located; the connecting protrusions 31 are welded and connected to the outer edge of the anti-fall net 3.

[0040] Preferably, the number of the installation prompt components 5 is two; the two installation prompt components 5 are symmetrically arranged on both sides of the installation portion 11.

[0041] The closer the installation reminder component 5 is to the installation portion 11, the higher the height of the manhole cover 2 above the road surface when the anti-fall net 3 is not installed, and the more obvious the reminder effect. In this embodiment, the two installation reminder components 5 are located on the diameter of the circle where the manhole ring 1 is located.

[0042] Preferably, the mounting seat 4 is located below the mounting plate 51 , so that when the anti-falling net 3 is installed on the mounting seat 4 , the outer edge of the anti-falling net 3 can abut against an end of the second portion 522 away from the first portion 521 .

[0043] The outer edge of the anti-falling net 3 abuts against an end of the second part 522 away from the first part 521 , thereby pushing the rotating member 52 to rotate, making it easier for the first part 521 to move to the first position.

[0044] Preferably, when the first portion is in the first position, the manhole cover 2 can be rotated until the outer edge 21 of the manhole cover abuts against the first annular wall, and at this time the outer surface of the manhole cover 2 is flush with the top of the manhole ring 1.

[0045] The outer edge 21 of the manhole cover abuts against the first annular wall, which is not only neat and beautiful, but also can reduce the foreign matter from entering the step wall through the gap between the outer edge 21 of the manhole cover and the first annular wall, thereby affecting the closing of the manhole cover 2.

[0046] Preferably, the second portion 522 is provided with a connecting portion 523 ; the rotating shaft 55 passes through one of the mounting plates 51 , the connecting portion 523 and the other mounting plate 51 in sequence, so that the rotating member 52 is rotatably connected between the two mounting plates 51 .

[0047] Specifically, the connection portion 523 is disposed on the central axis of the second portion 522 ; the connection portion 523 is connected to the second portion 522 by welding.

[0048] Preferably, a length of the second portion 522 located at a side of the connecting portion 523 close to the first portion 521 is smaller than a length of the second portion 522 located at a side of the connecting portion 523 far from the first portion 521 .

[0049] The length of the second portion 522 below the connecting portion 523 is greater than the length of the second portion 522 above the connecting portion 523, so that the first portion 521 can reach the first position when the end of the second portion 522 away from the first portion 521 rotates a small angle.

[0050] Preferably, the thickness of the first portion 521 is greater than the thickness of the second portion 522 .

[0051] The thickness of the first portion 521 is greater than that of the second portion 522 , which can not only provide an obvious reminder of the height of the manhole cover 2 exceeding the road surface when the anti-fall net 3 is not installed, but also help save materials and reduce waste.

[0052] Preferably, the number of the mounting seat 4 and the number of the connecting protrusions 31 are both 4. The four connecting protrusions 31 are respectively connected to the corresponding mounting seats 4 to ensure that the anti-fall net 3 is installed firmly.

[0053] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An installation reminder device for a manhole cover anti-fall net, characterized in that: The invention comprises a manhole ring (1), a manhole cover (2), an anti-fall net (3), a mounting seat (4) and an installation prompt assembly (5); the manhole ring (1) is provided with a mounting portion (11), and the manhole cover (2) is rotatably connected to the mounting portion (11); the manhole ring (1) comprises a first annular wall and a second annular wall, and a stepped wall disposed horizontally between the first annular wall and the second annular wall; the first annular wall is higher than the second annular wall, and the first annular wall and the second annular wall both share a central axis with the manhole ring (1); The second annular wall is provided with a plurality of mounting seats (4), and the anti-falling net (3) is installed on the mounting seats (4); the installation prompt assembly (5) comprises a rotating member (52), a spring (53), an abutting member (54), a rotating shaft (55) and two mounting plates (51); the two mounting plates (51) are arranged on the second annular wall in parallel and at a distance from each other, and the rotating member (52) is rotatably arranged between the two mounting plates (51) via the rotating shaft (55); the rotating member (52) comprises a first The manhole cover (2) comprises a first part (521) and a second part (522) connected to one end of the first part (521); one end of the second part (522) away from the first part (521) is connected to one end of the spring (53); the other end of the spring (53) is connected to the abutment member (54), and the abutment member (54) abuts against the second annular wall; an outer edge (21) of the manhole cover is provided on the inner side of the manhole cover (2); when the anti-falling net (3) is installed on the mounting seat (4), the outer edge of the anti-falling net (3) abuts against the second annular wall The first part (521) is connected to the second part and rotates the first part to a first position, at which time the manhole cover (2) can be rotated until the outer edge (21) of the manhole cover abuts against the step wall, and at which time the outer surface of the manhole cover (2) is flush with the top of the manhole ring (1); when the anti-fall net (3) is not installed on the mounting seat (4), the first part (521) is in a second position, at which time the first part (521) can block the outer edge (21) of the manhole cover so that the outer edge (21) of the manhole cover cannot abut against the step wall.

2. The installation reminder device for the manhole cover anti-fall net according to claim 1 is characterized in that: The mounting seat (4) is provided with a stepped groove; the stepped groove comprises a first groove (41) and a second groove (42); an upper portion of the first groove (41) is provided with an opening, and a lower portion of the first groove (41) is connected to the second groove (42); a connecting protrusion (31) is provided on a side of the anti-falling net (3); the connecting protrusion (31) can enter the first groove (41) through the opening; when the anti-falling net (3) is rotated to a preset angle, the connecting protrusion (31) can enter the second groove (42) from the first groove (41).

3. The installation reminder device for the manhole cover anti-falling net according to claim 2 is characterized in that: The number of the mounting seats (4) is multiple; the number of the connecting protrusions (31) is multiple, and the connecting protrusions (31) are centrally symmetrically distributed around the center of the anti-fall net (3); the connecting protrusions (31) and the mounting seats (4) correspond one to one; and the connecting protrusions (31) are connected to the corresponding mounting seats (4).

4. The installation reminder device for the manhole cover anti-falling net according to claim 1 is characterized in that: The number of the installation prompt components (5) is two; the two installation prompt components (5) are symmetrically arranged on both sides of the installation portion (11).

5. The installation reminder device for the manhole cover anti-fall net according to claim 1 is characterized in that: The mounting seat (4) is located below the mounting plate (51), so that when the anti-falling net (3) is installed on the mounting seat (4), the outer edge of the anti-falling net (3) can abut against an end of the second part (522) away from the first part (521).

6. The installation reminder device for the manhole cover anti-fall net according to claim 1 is characterized in that: When the first part is in the first position, the manhole cover (2) can be rotated until the outer edge (21) of the manhole cover abuts against the first annular wall, and at this time the outer surface of the manhole cover (2) is flush with the top of the manhole ring (1).

7. The installation reminder device for the manhole cover anti-falling net according to claim 1 is characterized in that: The second part (522) is provided with a connecting part (523); the rotating shaft (55) passes through one of the mounting plates (51), the connecting part (523) and the other mounting plate (51) in sequence, so that the rotating member (52) is rotatably connected between the two mounting plates (51).

8. The installation reminder device for the manhole cover anti-falling net according to claim 7 is characterized in that: The length of the second portion (522) on a side of the connecting portion (523) close to the first portion (521) is smaller than the length of the second portion (522) on a side of the connecting portion (523) far from the first portion (521).

9. The installation reminder device for the manhole cover anti-falling net according to claim 5, characterized in that: The thickness of the first portion (521) is greater than the thickness of the second portion (522).

10. The installation reminder device for the manhole cover anti-falling net according to claim 3, characterized in that: The number of the mounting seat (4) and the number of the connecting protrusions (31) are both four.

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