CN1080360C

CN1080360C - Device for locking cover pivotally mounted onto frame

Info

Publication number: CN1080360C
Application number: CN98105947A
Authority: CN
Inventors: J·－J·M·蒙内雷特
Original assignee: Norinco SA
Current assignee: Norinco SA
Priority date: 1997-01-30
Filing date: 1998-01-27
Publication date: 2002-03-06
Anticipated expiration: 2018-01-27
Also published as: AR011777A1; FR2758836B1; CN1193069A; DE69801689D1; CZ28498A3; ID22097A; PL324567A1; EG20969A; BR9800456A; ATE205904T1; SK285951B6; ES2164403T3; CZ295746B6; ZA98684B; FR2758836A1; CO4771114A1; DE69801689T2; EP0856611B1; MA24460A1; HK1015848A1

Abstract

The lock is used for a hinged manhole cover (2) which is located in a surrounding frame (1) set in a road. The lock consists of an angled lever (5) which is pivoted to the cover and has one arm (7) which engages with a projection (38) on the frame, while the other arm (8) forms a handle for release of the lock and lifting of the cover. The angle of the lever has a pivot which receives a clip-on plastic component (12) which is inserted into and retained by a recess in the cover. The plastic component is basically U-shaped, with its inner surface receiving the pivot and one of its branches (14) clipping into the recess (17).

Description

Pivot is positioned on the device for locking cover on the framework

The present invention is positioned on device for locking cover on the framework about a kind of pivot.

Long-term come, people know and detect the hole on the blocked road, for example are positioned on lid on the framework or lid by a pivot and seal and detect the hole.Described framework is embedded on the road surface.

Pivot joint structure between lid and framework allows or does not allow lid to move out or take out from framework.

Early there is the people to advise adopting various systems the cover lock on the framework can be fixed on the framework, can certainly opens the lid on the framework.

Yet Jian Yi locking or open system demonstrate very big inconvenience before.In these inconvenience, may run into operating reliability, it is not satisfied sometimes, also may run into relative complex and expensive frame for movement, the risk that also has system to block when needs use the detection hole, also must use an aid to rise lid or lid is removed elsewhere.

Therefore, purpose of the present invention overcomes these inconvenience exactly, by lid is carried out the locking device that simple Machine Design provides a kind of lid.This device under any circumstance even under long-term the use has perfect operating reliability; When detecting the hole, himself can also constitute a kind of effective device of mentioning lid to using.

In order to reach its purpose, the present invention is that a kind of pivot is positioned on the device for locking cover on the framework, which comprises at least one and linked with lid, and be positioned on the framework lock select with the pivot joint structure relative position place of lid, said locking bolt is the feature that pivotally is positioned on the curved lever shape that covers; Arm of lever matches to realize its locking with the building block on the framework wall, and another arm formation leader or handle are with the operation locking bolt, mention the enable possition of lid to lid, it is characterized in that, the turn of bilge of foregoing bar comprises a pivot, parts of being made by plastic material are clipped on this pivot, itself insert and remain on a wall that forms by lid recessed in.

Here pointed out further that foregoing plastic components is U-shaped bottom on the side, its bottom is used to accept pivot, and one of them leg at least of these parts by clamping remain on above-mentioned wall recessed in.

According to its another feature, the recessed wall by a band hollow part of the wall that forms in the lid constitutes, this hollow bulb potential energy allows an arm of bar movable therein, and limit two legs by this hollow part, include a notch on every leg respectively, this notch blocks plastic components by the nose on leg of parts.

Another feature in according to the present invention, when the latched position of lid, an arm in the bar is between two protuberances that linked by frame wall, and forms the protruding thing of side at its free terminal, and the protruding thing of this side leans against below the described protuberance.

Be noted that here that in the pass closed procedure of lid above-mentioned protuberance forms an inclined ramp that matches with above-mentioned ridge at an upper portion thereof respectively to framework.

According to the further feature of apparatus of the present invention, another arm of bar constitutes the lateral sticks of mentioning handle or handle of lid at its free terminal.

According to a preferable concrete structure, above-mentioned bar is the right angle.

In conjunction with given accompanying drawing, set forth a kind of specific embodiment of the present invention by nonrestrictive example, make the following detailed description, to understand the present invention better, reflect its further purpose, feature, detailed content and advantage thereof better.

Fig. 1 is the top plan schematic view of lid framework when in the closed position;

Fig. 2 and Fig. 3 are the phantoms of the pivot joint structure of framework loam cake, and Fig. 2 middle cover is in the closed position, and Fig. 3 middle cover is in the enable possition;

Fig. 4 is the phantom drawing of locking bolt among the present invention;

Fig. 5 is the locking bolt side elevation according to Fig. 4 arrow V direction;

Fig. 6 is the link lateral view that is made of plastics and can be clipped on the locking bolt;

Fig. 7 is the opposite side view of link when being clipped on the locking bolt;

Fig. 8, Fig. 9 Figure 10 and Figure 11 have reflected how the assembly of link shown in Figure 7 and locking bolt inserts and remain on the whole process in cap walls is recessed, and the latter has been reflected the partial sectional view when in the closed position;

Figure 12, Figure 13 and Figure 14 have described when the closing and lock of implementation framework loam cake, locking device of the present invention situation separately;

Figure 15 described from the unlatching of fastening position shown in Figure 14, framework loam cake up to constitute lid mention handle the time locking bolt position signal situation;

Figure 16 is according to the framework of arrow XVI direction among Figure 15 protruding a kind of top view of locking.

Find out that in Fig. 1 according to the exemplary embodiments structure, framework 1 has an octagon, it on it pivotally connected lid 2, be readily appreciated that cent(e)ring lug 3 is used for making lid be positioned at framework central authorities better to the better guiding of the implementation of framework loam cake or than positive interaction.

Label 4 is the pivot joint structure of framework 1 loam cake 2 among Fig. 1; Label 5 is according to locking device of the present invention or locking bolt, and it is positioned at the radially relative position of pivot joint structure 4 and matches with cover 6 on the framework 1.

Easier seeing in Fig. 2 and Fig. 3, pivot joint structure 4 itself is known homogeneous structure, be a kind of link to each other with lid 2 have spherical axle ear 27 pivot joint structures, a described spherical ear is contained in the slot in frames shape wall recessed 28.

As seen from Figure 3, the lid 2 with a kind of like this pivot joint structure can be opened to the angle about about 120 degree and still link to each other with framework.That is to say that if desired, when being in about 90 when spending, lid 2 can take out from framework 1.

Especially as seen from Figure 4, according to the present invention, locking bolt 5 reflects that pivot is positioned on the shape of covering a kind of bent stick 6 on 2, according to its exemplary embodiments, bar 6 curves the right angle, its include one be contained in framework 1 on the arm 7 that matches of building block 38, can find out better that from Fig. 8 to Figure 16 arm 7 is the lockings that are used for promoting to the framework loam cake; And another arm 8 of bar 6 forms locking bolt operating handle or handle, and when unlatching covered 2, also as the handle of opening lid, this point elaborated in the back.

Reflect more clearly among Fig. 4 that according to the present invention, the knee in shape of the bar 6 of this locking bolt 5 includes pivot 9, this pivot 9 itself reaches two horizontal protuberances 11 by turn of bilge 10 and forms.

On pivot 9, promptly on the turn of bilge 10, two connects parts 12 clampings that protuberance 11 is made of plastics, and can find out better from Fig. 6 and Fig. 7.

The side-glance shape of these parts 12 is a U font, and 13 are used to hold pivot 9 at the bottom of its U font, more precisely holds two protuberance 11, and a pin 14 in two

14,15 of parts 12 a little outwards is bent to form a nose 16, and its effect will be explained below.

Can find out better that from Fig. 8 to Figure 11 when parts 12 were clipped on the locking bolt 5, its whole assembly inserted and is positioned on by lid 2 and forms and be in the wall recessed 17 that covers the bottom.

The cross section of this wall recessed 17 is shown as the U word shape that couches in fact, leg is formed by the end face of lid 2 on it, its another leg or down leg have a hollow bulb 18, this hollow bulb 18 extends always and limits two legs 19 along the length direction of leg, only can see one leg wherein in the drawings.

Each bar has a groove 20 at its free terminal in this two legs 19.

Therefore, from Fig. 8 to Figure 11, can find out successively, in the time of in the assembly of parts 12 and locking bolt 5 inserts by lid 2 walls that form recessed 17,

14,15 in the parts 12 is resilient retraction in by lid 2 walls that form recessed 17, and be between two legs 19 and the last capping, it is recessed 17 that two faces separately of lid 2 are limited with wall, as what illustrate previously.

Can find out better that from Figure 11 in the insertion end of parts 12 with the locking bolt 5 that links to each other with these parts, the nose 16 on the pin 14 of parts 2 will hook the groove 20 on the leg 19 in the wall recessed 17.

Be noted that here this link 12 is two U shape parts in fact, in Fig. 6, only find out one of them.These two U shape parts are clamped in respectively on two protuberances 11 on the bar 6.Two noses 16 insert at parts and terminally form hook-shapedly, go in the notch 20 on the two legs 19 entering its dogging when covering in 2 the wall recessed 17; This two legs is limited out by hollow bulb 18, and hollow bulb 18 allows that the arm 7 in the bent stick 6 is movable within it.This point has been pointed out in Figure 10 and Figure 11 expressly.

Point out further that here each protuberance 11 both sides of bar 6 have each burnishing surface 11a, in the U-shaped spare of their insertion parts 12, after protuberance 11 inserts, will tack bar 6 by rotation.

This building block 38 belongs to frame wall, be used for lid 2 is locked in this framework, this building block 38 includes two protuberances 21, this protuberance leaves at interval each other, and be limited by it out between the two free at interval 22, with allow arm 7 between movable, this point will further specify in the relevant operating process of back.Figure 16 illustrates two protuberances 21.To shown in Figure 15, is inclined ramp 23 on these protuberance 21 tops as Fig. 8.

Later referring to Fig. 4, the arm 7 of this bent stick 6 comprises a lateral sticks 24 at its free terminal, and the two ends of this lateral sticks 24 respectively have a protruding thing 25 of side.In the pass closed procedure of lid, protruding thing 25 also can match with 23 tops, ramp that form protuberance 21.Can find out at Figure 14, the protruding thing 25 of the side of this lateral sticks 24 lean against protuberance 21 below.

In Fig. 4, further find out, another arm 8 of this bent stick 6 also forms a lateral sticks 26 at its free end, this rod 26 as handle or handle not only has the effect that drives locking bolt 5, and can be used to mention the lid 2 that is positioned on the framework 1, and this point just elaborates now.

From Figure 12, can find out better, when needs by lid 2 when closing framework 1, lid is pressed arrow F towards the rotation of pivot joint structure direction so that in the bar 6 the protruding thing 25 of the end side of arm 7 with by fitting above the ramp 23 that forms on two protuberances 21.

When lid 2 continued to tilt rotation, the protruding thing 25 of the side of arm 7 moved along slope 23 and lever 6 is tilted or rotation, as shown in figure 13, slides into the end on slope 23 for 25 times up to the protruding thing of side.At the installed position of framework 1 loam cake 2, protruding thing 25 breaks away from protuberance 21, and is shown in Figure 14, orders about arm 8 to pin the lid 2 on framework according to the arrow G direction with enough power.In fact, the arm 7 of this bar 6 not only can move in the hollow bulb 18 in the wall recessed 17 but also can move in the interval 22 between two protuberances 21, and the protruding thing 25 of the side of arm 7 will be highlighted portion 21 and keep.

As seen Figure 15 when the unlatching of setting about covering 2, can make bent stick 6 tilt or rotation along arrow H direction by handle 26.

Therefore, the protruding thing 25 of the side of this arm 7 can come from protuberance 21 disengagings.When bar 6 tilted to rotate to maximum position, this arm 8 was in and covers 2 top, and handle 26 that is to say, locking bolt itself will can be used for covering 2 mention, thereby open the detection hole on the framework.

Certainly, the present invention not only is limited in the concrete device of describing and illustrating by embodiment.

Therefore, the link that is clipped on the locking bolt can be made by appropriate plastic material, for example nylon material.Equally, functional unit to locking system of the present invention provides suitable gap or rotating device, He or suitable device or similar device can be set on the component of locking system of the present invention, and to guarantee not have galling and noise, all these similar devices are made by plastic material.

This means the equivalent manners of the various technology that the present invention includes said apparatus and their combination, the scheme that realizes according to these main points all belongs to the scope that the back claim is protected.

Claims

1, a kind of pivot is positioned on the device for locking cover on the framework, this device includes a locking bolt that links with lid and be positioned on the framework with the pivot joint structure relative position place of lid at least, said locking bolt is and pivotally is positioned on the bent stick shape that covers, arm of described bent stick matches to realize its locking with the building block on the framework wall, and another arm forms the leader, mentions to the enable possition of lid with the operation locking bolt with lid; It is characterized in that: the turn of bilge of above-mentioned bar comprises a pivot, accompany on this pivot plastic components insert and remain on the wall that forms by lid recessed in.

2, device according to claim 1 is characterized in that: the side view of above-mentioned plastic components is the U font, and its bottom holds pivot, one of them leg at least of these U-shaped parts by clamping be maintained at above-mentioned wall recessed in.

3, device according to claim 1, it is characterized in that: the recessed wall by a band cavity of the wall that forms in the lid constitutes, this cavity can allow an arm of bar movable therein, and this cavity also limits two legs, include a notch on every leg respectively, this notch blocks plastic components by the nose on leg of above-mentioned plastic components.

4, device according to claim 1, it is characterized in that: when the latched position of lid, between two protuberances that an arm in the above-mentioned bar is in and frame wall links, and be included in the protruding thing of side of the free end of bar, the protruding thing of this side leans against below the described protuberance.

5, asking 4 described devices according to right, it is characterized in that: above-mentioned two protuberances that link with frame wall form a slope in the above respectively, and in the process of lid to framework shutdown, match with the protruding thing of above-mentioned side in the slope.