CN201292749Y

CN201292749Y - Opening and closing device of air-tight door

Info

Publication number: CN201292749Y
Application number: CNU200820302855XU
Authority: CN
Inventors: 张泽洪
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-20
Filing date: 2008-11-20
Publication date: 2009-08-19
Anticipated expiration: 2018-11-20

Abstract

The utility model discloses an opening and closing device of a sealing door, which comprises a door cover, a bracket, a handle, a connecting rod and a sliding block, wherein the handle is connected with the bracket by a hinge, a guiding support is arranged on the bracket, the sliding block is matched with the guiding support in a sliding mode and is connected with the door cover, both ends of the connecting rods are respectively connected with the handle and the sliding block by hinges, a slider-crank mechanism is formed among the handle, the connecting rod and the sliding block, the handle is used as a crank, the sliding block can be driven by rotating the handle to linearly move, so that the door cover is driven by the sliding block connected with the door cover to open and close, and meanwhile, the self lock is formed by a dead point position formed by an extension line of a connecting line of a hinge center of both ends of the connecting rod to pass through the hinge center connected by the handle and the bracket. The device can quickly complete the opening and closing action of the door cover, has compact, simple and reliable structure, is convenient to use, increases the efficiency for completing the opening and closing action of the door cover and has a reliable self-locking function at the same time.

Description

The headstock gear of hermatic door

Technical field

The utility model relates to a kind of headstock gear of hermatic door, the headstock gear of the hermatic door of especially industrial casees, cabinet kind equipment.

Background technology

In industries such as medical treatment, electronics, pharmacy, precision optical machinery and laboratory, the equipment of many bin classes is arranged, the hermatic door of these bin kind equipments generally plays effects such as isolation, sealing, thereby generally all adopts the iron hermatic door.At present, when in bin, putting into article or taking out article during owing to work, all need to open heavy iron hermatic door, just can in bin, take out article or send into article to operating cabin.The headstock gear of existing industrial bin hermatic door generally is that the end with support is connected with the outer wall hinge of bin, after support rotates to position across the external surface of door closure, thread spindle on the outer wall of the other end of its other end by being fixed on bin, the other end of support is fixed, certain at interval distance is arranged between the external surface of support and door closure, be used to open and close door closure; Medium position on support is provided with screwed hole, and the screw rod that is connected the external surface middle part of door closure is connected with handwheel after passing the screwed hole at middle part on the support.Rotation hand wheel promptly can be pushed into the position that the position closed or disengaging are closed with door closure by support.This mode that opens and closes door closure by the screw rod that is threaded with support can not make door closure open and close fast, and it is lower that it uses efficient; In addition, the general handwheel of mode that this screw rod opens and closes door closure is all bigger, uses extremely inconvenient.

The utility model content

Low for the screw rod headstock gear efficient that overcomes existing hermatic door, structure is huge, use inconvenient deficiency, technical problem to be solved in the utility model provide a kind of can the fast opening and closing door closure and the headstock gear of the hermatic door of easy to use, compact conformation.

The technical scheme that its technical problem that solves the utility model adopts is: the headstock gear of hermatic door, comprise door closure, support, handle, connecting rod and slide block, be connected through the hinge between handle and the support, support is provided with guiding and supports, slide block is slidingly matched with the guiding support and is connected with door closure, the two ends of connecting rod are connected with the slide block hinge with handle respectively, form slider-crank mechanism between handle, connecting rod and the slide block.Handle is as crank, and rotary handle can drive the slide block moving linearly, opens and closes thereby drive door closure by the slide block that is connected with door closure; Formed " dead point " position forms self-locking when also utilizing the hinge center that the extended line of line at the hinge center at connecting rod two ends is connected with support by handle simultaneously.

The beneficial effects of the utility model are, owing to utilized above-mentioned slider-crank mechanism to realize the keying of door closure, can finish the switching motion of the door closure of hermatic door fast, this structure also has compact conformation, simple and reliable, easy to use simultaneously, improve the efficient of the switching motion of finishing door closure, also had reliable auto-lock function simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the partial sectional view of the A-A direction of Fig. 1.

Fig. 3 is the partial enlarged drawing at the B place of Fig. 2.

Partial enlarged drawing when Fig. 4 is the another kind of state of Fig. 3.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the headstock gear of hermatic door of the present utility model, comprise door closure 1, support 2, handle 3, connecting rod 4 and slide block 5, be connected through the hinge between handle 3 and the support 2, support 2 is provided with guiding and supports 6, slide block 5 is slidingly matched with guiding support 6 and is connected with door closure 1, and the two ends of connecting rod 4 are connected with slide block 5 hinges with handle 3 respectively, form slider-crank mechanism between handle 3, connecting rod 4 and the slide block 5.Handle 3 is as crank, and rotary handle 3 can drive slide block 5 moving linearlies, opens and closes thereby drive door closure 1 by the slide block 5 that is connected with door closure 1.In slider-crank mechanism, when slide block is in extreme position, will be by the power that connecting rod is added on the crank through the center of crank hinge, this moment, slide block was 0 as the drive line angle of driving link, so can not rotate by throw crank, this position is called " dead point ".Therefore, above-mentioned slider-crank mechanism of the present utility model can also utilize when slide block 5 is in extreme position and is door closure 1 closed condition, and the extended line of the line at the hinge center at connecting rod 4 two ends is formed " dead point " position formation self-locking during with hinge center that support 2 is connected by handle 3.

Described slider-crank mechanism preferably adopts centric slider-crank mechanism, can use convenient so that structure is compact more like this.So-called centric slider-crank mechanism is meant the center of rotation of the slip axis of slide block through crank.

Embodiment: as Fig. 4, shown in Figure 5, the headstock gear of door of the present utility model, comprise door closure 1, support 2, handle 3, connecting rod 4 and slide block 5, be connected through the hinge between handle 3 and the support 2, support 2 is provided with guiding and supports 6, slide block 5 is slidingly matched with guiding support 6 and is connected with door closure 1, and the two ends of connecting rod 4 are connected with slide block 5 hinges with handle 3 respectively, form centric slider-crank mechanism between handle 3, connecting rod 4 and the slide block 5.Described guiding supports 6 and is provided with guiding supported hole 8, and slide block 5 is slidingly matched with guiding supported hole 8.Be strip hole 7 with handle 3 or slide block 5 hinged hinge holes on the described connecting rod 4, like this can be so that connecting rod 4 have different length when opening door closure 1 closing, thus make things convenient for closing and opening of door closure 1.In the heart line is vertical with the central axis of handle 3 in the hinged hinge of described handle 3 and support 2, connecting rod 4, can guarantee like this when closing door closure 1 and make slide block 5 be in extreme position, handle is applied to the lever thrust maximum on the slide block in the slider-crank mechanism, and is tightr thereby door closure 1 is closed.Be provided with the position limiting structure that limits the handle position of rotation between described handle 3 and the support 2, this position limiting structure is provided with a plane 11 by the top at handle 3, form the position limiting structure of restriction handle 3 turned positions between the inwall of this plane 11 and guiding supported hole 8, like this, can guarantee that handle 3 can rotate to easily makes slide block 5 reach the limit of the position, and utilize above-mentioned " dead point " position to form the slider-crank mechanism self-locking, guarantee the reliability that door closure 1 is closed.

Claims

1. the headstock gear of hermatic door, comprise door closure (1) and support (2), it is characterized in that: also comprise handle (3), connecting rod (4) and slide block (5), be connected through the hinge between handle (3) and the support (2), support (2) is provided with guiding and supports (6), slide block (5) is slidingly matched with guiding support (6) and is connected with door closure (1), and the two ends of connecting rod (4) are connected with slide block (5) hinge with handle (3) respectively, form slider-crank mechanism between handle (3), connecting rod (4) and the slide block (5).

2. the headstock gear of hermatic door as claimed in claim 1, it is characterized in that: described slider-crank mechanism is a centric slider-crank mechanism.

3. the headstock gear of hermatic door as claimed in claim 2 is characterized in that: described guiding supports (6) and is provided with guiding supported hole (8), and slide block (5) is slidingly matched with guiding supported hole (8).

4. the headstock gear of hermatic door as claimed in claim 3 is characterized in that: described connecting rod (4) is gone up and handle (3) or the hinged hinge hole of slide block (5) are strip hole (7).

5. the headstock gear of hermatic door as claimed in claim 4 is characterized in that: in the heart line is vertical with the central axis of handle (3) in the hinged hinge of described handle (3) and support (2), connecting rod (4).

6. the headstock gear of any described hermatic door of claim as in 2～5 is characterized in that: the position limiting structure that is provided with qualification handle position of rotation between described handle (3) and the support (2).

7. the headstock gear of hermatic door as claimed in claim 6, it is characterized in that: the top of described handle (3) is provided with a plane (11), forms above-mentioned position limiting structure between the inwall of this plane (11) and guiding supported hole (8).