CN201795109U

CN201795109U - Extraction check valve for vacuum bag

Info

Publication number: CN201795109U
Application number: CN2010202835370U
Authority: CN
Inventors: 杨宣东
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-04
Filing date: 2010-08-04
Publication date: 2011-04-13
Anticipated expiration: 2020-08-04

Abstract

The utility model discloses an extraction check valve for a vacuum bag, which comprises a valve seat for being connected to a bag mouth of the vacuum bag, wherein an air hole for communicating the inside and the outside of the vacuum bag is formed on the valve seat, the air hole is connected with an elastic plugging part, the elastic plugging part comprises a plug part and a gasket part connected at one end of the plug part, the plug part is arranged in the air hole by penetration, the air hole is plugged by the gasket part, a convex ring for surrounding the air hole is arranged on the end surface on one side of the valve seat, the gasket part props the valve seat in the position of the end surface from the inner wall of the convex ring to the edge of the air hole, a valve cover is in threaded connection with the convex ring, internal threads are formed on the inner wall of the convex ring, a ring slot is formed on one side of the valve cover, which corresponds to the convex ring, an externally threaded raised part is arranged in the ring slot, the convex ring is fixedly connected with the externally threaded raised part in the ring slot through the threads, and the raised part props the gasket part on the valve seat. The extraction check valve is simple in structure, the elastic plugging part can effectively prevent air counter current under natural air pressure; simultaneously, the arrangement of the valve cover and the threaded connection way with the valve seat can improve the sealing effect to a greater extent, therefore, practicability is realized .

Description

The check valve of bleeding that is used for vacuum bag

Technical field

The utility model relates to a kind of vacuum bag valve, relates in particular to a kind of check valve of bleeding that is used for vacuum bag.

Background technique

The sack evacuating valve complex structure of vacuum bag in the prior art, the phenomenon that often leaks air after bleeding, non-return seal is very poor.

The model utility content

In view of this, technical problem to be solved in the utility model is: provide a kind of simple in structure, the extraordinary check valve of bleeding that is used for vacuum bag of air tight, the non-return seal in back of bleeding.

In order to achieve the above object, the utility model adopts following technological scheme to realize:

A kind of check valve of bleeding that is used for vacuum bag, wherein, comprise in order to be connected in the valve seat on the vacuum bag sack, have on the described valve seat in order to the pore inside and outside the connection vacuum bag, described pore is connected with the elasticity closeouts, described elasticity closeouts has embolism portion and is connected in the gasket part of described embolism portion one end, and described embolism portion is arranged in the described pore, and described gasket part is plugged on the described pore.

As preferably, described valve seat is provided with the protruding circle of the described pore of corral in a side end face, and the described valve seat of described gasket part butt to the endface position between described pore edge, is bolted with valve gap on the described protruding circle in described protruding circle inwall.

As preferably, the inwall of described protruding circle is provided with internal thread, described valve gap is provided with ring recess in a side of the described protruding circle of correspondence, be provided with the outside thread lug boss in the described ring recess, described protruding the circle in described ring recess is solidly connected with described outside thread lug boss spiral shell, and described lug boss is replaced described gasket part on described valve seat.

As shown from the above technical solution, the beneficial effects of the utility model are:

Compared to existing technology, the utility model is simple in structure, the elasticity closeouts makes it can effectively stop back flow of gas under natural air pressure, good leak tightness, the setting of while valve gap and the mode that is spirally connected of valve gap outside thread and the protruding circle internal thread of valve seat have promoted the utility model more and ended the sealing effect that the circulation of vital energy in the wrong direction flows, and be very practical.

Description of drawings

Fig. 1 is valve seat in the utility model and the valve gap whole Facad structure schematic representation after being spirally connected.

Fig. 2 is valve seat in the utility model and the valve gap whole side structural representation after being spirally connected.

Fig. 3 is valve seat in the utility model and the valve gap preceding branch attachment structure schematic representation that is spirally connected.

Fig. 4 is the structural representation of valve gap in the utility model, has wherein illustrated the structure of ring recess and lug boss.

Fig. 5 is the linkage structure schematic representation of valve seat and elasticity closeouts in the utility model.

Fig. 6 is the structural representation of valve seat in the utility model, has wherein illustrated the structure of protruding circle and pore.

Fig. 7 is the structural representation of elasticity closeouts in the utility model.

Embodiment

In order to make those skilled in the art can further understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing.

See also Fig. 1 to shown in Figure 7, the utility model provides a kind of check valve of bleeding that is used for vacuum bag, wherein, comprise in order to be connected in the valve seat 1 on the vacuum bag sack, have on the described valve seat in order to the pore 2 inside and outside the connection vacuum bag, described pore is connected with elasticity closeouts 3, described elasticity closeouts has embolism portion 4 and is connected in the gasket part 5 of described embolism portion one end, described embolism portion is arranged in the described pore, described gasket part is plugged on the described pore, described valve seat is provided with the protruding circle 6 of the described pore of corral in a side end face, described protruding circle is connected on the vacuum bag sack by wearing outside vacuum bag in the vacuum bag in actual applications, the described valve seat of described gasket part butt is on the endface position 7 of described protruding circle inwall between the described pore edge, be bolted with valve gap 8 on the described protruding circle, the inwall of described protruding circle is provided with internal thread, described valve gap is provided with ring recess 9 in a side of the described protruding circle of correspondence, be provided with outside thread lug boss 10 in the described ring recess, described protruding the circle in described ring recess is solidly connected with described outside thread lug boss spiral shell, and described lug boss is replaced described gasket part on described valve seat.

But the above only is a preferable possible embodiments of the present utility model, is not in order to limit to claim of the present utility model, so the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, all in like manner to be included in the scope of the present utility model.

Claims

1. check valve of bleeding that is used for vacuum bag, it is characterized in that, comprise in order to be connected in the valve seat on the vacuum bag sack, have on the described valve seat in order to the pore inside and outside the connection vacuum bag, described pore is connected with the elasticity closeouts, described elasticity closeouts has embolism portion and is connected in the gasket part of described embolism portion one end, and described embolism portion is arranged in the described pore, and described gasket part is plugged on the described pore.

2. the check valve of bleeding that is used for vacuum bag as claimed in claim 1, it is characterized in that, described valve seat is provided with the protruding circle of the described pore of corral in a side end face, the described valve seat of described gasket part butt to the endface position between described pore edge, is bolted with valve gap on the described protruding circle in described protruding circle inwall.

3. the check valve of bleeding that is used for vacuum bag as claimed in claim 2, it is characterized in that, the inwall of described protruding circle is provided with internal thread, described valve gap is provided with ring recess in a side of the described protruding circle of correspondence, be provided with the outside thread lug boss in the described ring recess, described protruding the circle in described ring recess is solidly connected with described outside thread lug boss spiral shell, and described lug boss is replaced described gasket part on described valve seat.