CN201588227U

CN201588227U - Steel fiber inspection shaft safety protection screening

Info

Publication number: CN201588227U
Application number: CN2009202019149U
Authority: CN
Inventors: 蔡兆泉; 蔡天强
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-07
Filing date: 2009-12-07
Publication date: 2010-09-22
Anticipated expiration: 2019-12-07

Abstract

The utility model fiber inspection shaft safety protection screening which comprises a steel fiber inspection shaft base mounted on the opening of the inspection shaft and a safety protection screening capable of covering the opening of the inspection shaft; the inspection shaft base is provided with a circle of inner flange, the protection screening is connected with the inspection shaft through a hook, the hook is integrally annular and is provided with an opening position for nesting an edge rope of the protection screening, and the opening position can be closed by a lock catch. The utility model has the beneficial effects that: as the hook is annular and is provided with a lock catch on the opening part and capable of closing the opening position, when the protection screening edge rope is nested in the hook, the protection screening edge rope in the hook cannot fall off, and the safety of protection screening is ensured.

Description

A kind of steel fibre inspection shaft safety guard net

Technical field

The utility model relates to a kind of safety device, specifically is meant to be used to prevent that the pedestrian from falling into a kind of steel fibre inspection shaft safety guard net of inspection shaft.

Background technology

Modern city underdrainage pipe network is crisscross, inspection shaft is densely distributed, and inspection shaft is distributed in the residential block with on the big road of visitors flowrate more, present inspection shaft covers big multidigit cast iron quality, stolen easily, the incident that the pedestrian falls into the uncovered inspection shaft happens occasionally, cast iron inspection shaft lid is substituted by steel fiber reinforced concrete manhole top gradually now, and steel fiber reinforced concrete manhole top is because the material cheapness is difficult for stolen, but when sewer overhauls, the inspection shaft lid is removed, and still can cause very big potential safety hazard to the pedestrian, and ground foreign material is fallen into inspection shaft easily, bring personal injury to the maintainer easily, inspection shaft security protection problem needs to be resolved hurrily.

In existing inspection shaft safety device, though some provides many solutions, the scheme of protective screening has been proposed to be provided with such as steel fibre inspection shaft safety device (CN200820170658.7), comprise the inspection shaft seat and be hooked on protective screening on the inspection shaft seat, but the nettle edge of protective screening is hung on hook, the nettle edge breaks away from hook easily when being subjected to greater impact power, cause irremediable loss, link up with an end simultaneously and be on the inner edge that is fixed on the inspection shaft seat not movable, the monolateral for a long time stressed fixed end transition strain that causes.

Summary of the invention

In order to solve existing inspection shaft security protection problem, the utility model provides a kind of steel fibre inspection shaft safety guard net that can prevent effectively that protective screening from coming off.

The technical solution adopted in the utility model is:

A kind of steel fibre inspection shaft safety guard net, comprise the steel fibre inspection shaft seat that is installed in the inspection shaft aperture, the safety guard net that the inspection shaft aperture can be covered, the inspection shaft seat has a circle inner edge, protective screening is connected with the inspection shaft seat by hook, described hook integral body in the form of a ring, hook is provided with the opening that is used to be inserted in protective screening edge nettle, and this opening can be by latch enclosure.

Described hook opening upper end is the installation end of snap close, described snap close upper end flexibly connects with installation end, agree with mutually with the lower end of hook opening the lower end of snap close, described snap close is provided with the groove of laying back-moving spring, the support member of compression reseting spring when back-moving spring is provided with a snap close rotation.

The installation end of described hook and the support member place of offseting are provided with the V-type groove, and described accordingly support member is provided with the feet that embeds the V-type groove.

The inner edge below of described inspection shaft seat is provided with some clasps, and clasp is arranged along inner edge is circumferentially equidistant, and described hook is connected with the inspection shaft seat by clasp.

Described safety guard net is worked out by nylon rope, and the edge nettle can be by hook hook hook jail.

The beneficial effects of the utility model are: because hook is provided with the snap close that opening can be sealed at opening portion in the form of a ring, nettle is inserted in the hook when the protective screening edge, snap close is opened rotation drive support member and is rotated simultaneously, thereby one section V-type groove lowest part compression reseting spring that slips away that support member and installation end offset, back-moving spring self produces elastic force elastic force and causes the snap close reversing to agree with mutually with hook again, after having guaranteed that protective screening edge nettle is inserted in hook, can not come off, protect its safety; Hang over to rotate flexibly on the clasp and avoid monolateral stressed, avoided too early strain.

Description of drawings

Fig. 1 is the utility model overall structure schematic diagram;

Fig. 2 is the safety guard net structural representation;

Fig. 3 is the snap ring structure schematic diagram;

Fig. 4 is a steel fibre inspection shaft seat upward view;

Fig. 5 is the hook structure schematic diagram;

Fig. 6 is hook user mode figure;

Fig. 7 is the installation end sectional view of snap close and hook;

Fig. 8 is the supporting piece structure schematic diagram.

The specific embodiment

Referring to Fig. 1, Fig. 2, a kind of steel fibre inspection shaft safety guard net, comprise the steel fibre inspection shaft seat 1 that is installed in the inspection shaft aperture, the safety guard net 5 that the inspection shaft aperture can be covered, the inspection shaft seat has a circle inner edge 2, and protective screening 5 is connected with inspection shaft seat 1 by hook 6, and safety guard net 5 is worked out by nylon rope, edge nettle 51 can be by hook hook 6 hook jails, link up with 6 integral body in the form of a ring, hook 6 is provided with the opening that is used to be inserted in protective screening 5 edge nettles 51, and this opening can be by snap close 8 sealings.

Referring to Fig. 3, Fig. 4, the inner edge of inspection shaft seat below is provided with some clasps 3, and clasp 3 is arranged along inner edge 2 is circumferentially equidistant, and hook 6 is connected with inspection shaft seat 1 by clasp 3, and hook 6 hangs over can rotate flexibly on the clasp 3 avoids monolateral stressed, has avoided too early strain.

Referring to Fig. 5, Fig. 6, hook opening upper end is the installation end 12 of snap close 8, and snap close 8 upper ends and installation end 12 flexibly connect, and adopt the connected mode of pivot pin usually, and agree with mutually with the lower end of hook 6 openings the lower end of snap close 8.

Referring to Fig. 7, Fig. 8, snap close 8 is provided with the groove of laying back-moving spring 7, the support member 10 of compression reseting spring 7 when back-moving spring 7 is provided with a snap close rotation, the installation end 12 and support member 10 places of offseting of described hook 6 are provided with V-type groove 13, described accordingly support member 10 is provided with the feet 11 that embeds V-type groove 13, when snap close 8 inwardly rotates, the feet 11 that support member 10 and V-type groove 13 offset V-type groove 13 lowest parts that slip away, thereby compression reseting spring 7, thereby therefore back-moving spring 7 self produces elastic force causes snap close 8 reversings to agree with mutually with hook 6 again, become the annular of a sealing, select for use the words of hook 6 to guarantee that protective screening edge nettle 51 can not come off.

Claims

1. steel fibre inspection shaft safety guard net, comprise the steel fibre inspection shaft seat (1) that is installed in the inspection shaft aperture, the safety guard net (5) that the inspection shaft aperture can be covered, the inspection shaft seat has a circle inner edge (2), protective screening (5) is connected with inspection shaft seat (1) by hook (6), it is characterized in that: described hook (6) integral body in the form of a ring, hook (6) is provided with the opening that is used to be inserted in protective screening (5) edge nettle (51), and this opening can be sealed by snap close (8).

2. a kind of steel fibre inspection shaft safety guard net as claimed in claim 1, it is characterized in that: described hook (6) opening upper end is the installation end (12) of snap close (8), described snap close (8) upper end flexibly connects with installation end (12), agree with mutually with the lower end of hook (6) opening the lower end of snap close (8), described snap close (8) is provided with the groove of laying back-moving spring (7), the support member (10) of compression reseting spring (7) when back-moving spring (7) is provided with a snap close (8) rotation.

3. a kind of steel fibre inspection shaft safety guard net as claimed in claim 2, it is characterized in that: the installation end (12) of described hook (6) is provided with V-type groove (13) with support member (10) place of offseting, and described accordingly support member (10) is provided with the feet (11) that embeds V-type groove (13).

4. a kind of steel fibre inspection shaft safety guard net as claimed in claim 1 or 2, it is characterized in that: the inner edge below of described inspection shaft seat is provided with some clasps (3), clasp (3) is arranged along inner edge (2) is circumferentially equidistant, and described hook (6) is connected with inspection shaft seat (1) by clasp (3).

5. a kind of steel fibre inspection shaft safety guard net as claimed in claim 1 or 2, it is characterized in that: described safety guard net (5) is worked out by nylon rope, and edge nettle (51) can be by hook hook (6) hook jail.