CN207177209U - Opening and closing convenient point inspection port - Google Patents

Abstract

The utility model relates to an open and close convenient some and examine mouth belongs to building five metals technical field. The spot inspection port comprises a rectangular outer frame and an openable inner frame which are fixedly installed, wherein two opposite inner sides of the outer frame are respectively provided with a clamping groove, the inner frame is provided with a vertical flanging which can be embedded into the outer frame, one end of the clamping groove is hinged with the lower end of a supporting connecting rod, and the upper end of the supporting connecting rod is provided with a limiting head; one end of the vertical flanging corresponding to the clamping groove is hinged with the upper end of the shifting connecting rod, and the lower end of the shifting connecting rod and the clamping groove form a moving pair; the supporting connecting rod is hinged with the middle part of the shifting connecting rod, and when the inner frame is opened to a preset opening position and the lower end of the shifting connecting rod is in a self-locking state, the limiting head of the supporting connecting rod is abutted against and blocks the inner frame. When the point inspection opening needs to be opened, only one end of the inner frame, which is far away from the hinged joint, needs to be slightly pushed; when the inspection opening is required to be closed, the inner frame can be automatically embedded into the outer frame only by slightly pushing the lower end of the shifting connecting rod along the clamping groove to enable the shifting connecting rod to be separated from a self-locking state, and the operation is very convenient.

Description

A kind of point inspection mouth of conveniently opening and closing

Technical field

It the utility model is related to a kind of access hole device, and in particular to a kind of access hole of conveniently opening and closing（Also known as point inspection Mouthful）, belong to architectural hardware technical field.

Background technology

Modern architecture is when carrying out house furred ceiling, the finishing of floor covering layers, package decoration, it usually needs the reserved inspection that can be opened and closed Mouth is repaiied, in order to safeguard in interlayer and pipeline etc..

According to the applicant understood, or existing access hole opens ceiling board top when opening, or cover plate is pried open, not only operate Inconvenience, while also easily cause the damage of panel.In addition, the cover plate after opening easily voluntarily is fallen, upkeep operation is influenceed.

The content of the invention

The purpose of this utility model is：The problem of existing for prior art, propose a kind of conveniently opening and closing and open The point inspection mouth voluntarily positioned to predetermined open position, so as to conveniently hang on layer, in floor facility maintenance.

In order to reach object above, the point inspection mouth basic technical scheme of the utility model conveniently opening and closing is：Pacify including fixed The rectangular outer frame of dress and openable inside casing, the relative inner side of the housing two have neck respectively, and the inside casing has can be embedding Enter the vertical flange in housing, the lower end of one end hinge dress support link of the neck, the upper end of the support link has limit Potential head；The upper end of vertical flange one end hinge dress displacement connecting rod of the corresponding neck, the lower end of the displacement connecting rod and the card Groove forms prismatic pair；The support link is hinged with shifting the middle part of connecting rod, when the inside casing is opened into predetermined open position, institute The lower end of displacement connecting rod is stated when being in self-locking state, the spacing head of the support link is against blocking inside casing.

So, when needing opening point to examine mouth, as long as touching inside casing away from be hinged one end, connect in support link and displacement Under the common effect of contraction of bar, pushed away end and smoothly opened being slid with the lower end of displacement connecting rod in neck.And when inside casing is opened When opening to predetermined aperture, spacing head inside casing is blocked in the upper end of support link, makes it because of the work between displacement connecting rod lower end and neck Firmly have been enter into angle of friction self-locking and position, will not voluntarily fall.When needing to close inspection mouth, as long as touching displacement along neck Connecting rod lower end, self-locking state is disengaged it from, inside casing can voluntarily be embedded in housing, cover an inspection mouth, very convenient.

Further, the housing and inside casing have the external buckle edge and internal buckle edge of embedded outer airtight material and interior airtight material respectively.

Further, described 1 liang of relative middle inside of housing has the neck in C-shaped section respectively.

Further, housing border inside upper part extends the upper crochet of inlay card gastight material.

Further, extended outwardly out at the top of the inside casing border and push down the lid side of gastight material.

Further, the lower end of the displacement connecting rod is equipped with the roller to match with neck.

Brief description of the drawings

The utility model is further described below in conjunction with the accompanying drawings.

Fig. 1 is the dimensional decomposition structure diagram of the utility model one embodiment.

Fig. 2 is that Fig. 1 embodiments assemble opening structural representation.

Fig. 3 is the dimensional structure diagram that Fig. 1 embodiments shift connecting rod and support link assembling.

Fig. 4 is Fig. 1 embodiment closure state partial structural diagrams.

Fig. 5 is Fig. 4 top view.

Fig. 6 is Fig. 4 cross section structure schematic diagram.

Embodiment

Embodiment one

The point inspection mouth of the present embodiment conveniently opening and closing as shown in figure 1, including the use of when be fixedly mounted on the rectangle of furred ceiling etc. Housing 1 and openable rectangle inside casing 2.Housing 1 and inside casing 2 are made of aluminium section bar, have embedded outer airtight material 3 " and interior respectively The external buckle edge 1-3 and internal buckle edge 2-3 of airtight material 3 '.1 liang of relative middle inside of housing has the neck 1- in C-shaped section respectively 1, the border inside upper part of housing 1 extends the upper crochet 1-2 of inlay card gastight material 3.Inside casing 2 is vertical in housing with that can be embedded in Flange 2-1, the border of inside casing 1 top, which extends outwardly out, pushes down the lid side 2-2 of gastight material 3 (referring to Fig. 6).7 in Fig. 1 be rivet Axle, 8 be collar, and 9 be packing ring, and 10 be bearing pin.

Neck 1-1 one end by the lower end of fixation ladder piece 4 therein hinge dress support link 5, the support link 5 it is upper End has hook-shaped spacing head 5-1.The upper end of corresponding neck 1-1 vertical flange one end hinge dress displacement connecting rod 6, displacement connecting rod 6 Lower end is equipped with the roller 11 to match with neck 1-1.Support link 5 is hinged with shifting the middle part of connecting rod 6.

When inside casing 2 is opened into predetermined open position, the frictional force between the roller 11 and neck 1-1 of displacement connecting rod 6 lower end And neck 1-1 makes a concerted effort to fall into angle of friction to displacement connecting rod 6 support force, thus self-locking state is in, now support link 5 Spacing head 5-1 plays positioning action against the lid side 2-2 inner edges for blocking inside casing 2 (referring to Fig. 2).Predetermined aperture can be as needed It is mutually perpendicular to it is determined that the predetermined aperture of the present embodiment is housing 1 and inside casing 2.

When needing opening point to examine mouth, as long as it is gradual away from be hinged one end, support link and displacement connecting rod to touch inside casing It is in X shapes (referring to Fig. 3) by closing up state fork, inside casing slides in neck with the lower end roller of displacement connecting rod and smoothly opened, Until reaching predetermined maximum opening, displacement connecting rod is in self-locking state, and spacing head inside casing is blocked in the upper end of support link, will not be certainly Row is fallen (referring to Fig. 2).And when needing to close inspection mouth, as long as touching displacement connecting rod lower end along neck, disengage it from self-locking State, inside casing can voluntarily be embedded in housing, cover and seal point examines mouth (referring to Fig. 4,5).

Claims (6)

1. a kind of point inspection mouth of conveniently opening and closing, including the rectangular outer frame of fixed installation and openable inside casing, it is characterised in that:Institute State the relative inner side of housing two has neck respectively, and the inside casing has the vertical flange that can be embedded in housing, the neck The lower end of one end hinge dress support link, the upper end of the support link has spacing head；The vertical flange one of the corresponding neck The upper end of end hinge dress displacement connecting rod, the lower end of the displacement connecting rod forms prismatic pair with the neck；The support link is with moving The middle part of position connecting rod is hinged, when the inside casing is opened into predetermined open position, the lower end of the displacement connecting rod is in self-locking state When, the spacing head of the support link is against blocking inside casing.

2. the point inspection mouth of conveniently opening and closing according to claim 1, it is characterised in that：The housing and inside casing have insertion respectively The external buckle edge and internal buckle edge of outer airtight material and interior airtight material.

3. the point inspection mouth of conveniently opening and closing according to claim 1 or claim 2, it is characterised in that：In the relative inner side of the housing two Portion has the neck in C-shaped section respectively.

4. the point inspection mouth of conveniently opening and closing according to claim 3, it is characterised in that：Housing border inside upper part is extended The upper crochet of inlay card gastight material.

5. the point inspection mouth of conveniently opening and closing according to claim 4, it is characterised in that：Extended outwardly out at the top of the inside casing border Push down the lid side of gastight material.

6. the point inspection mouth of conveniently opening and closing according to claim 5, it is characterised in that：The lower end of the displacement connecting rod is equipped with and card The roller that groove matches.