CN103335103A

CN103335103A - Sealing mechanism without dead angle

Info

Publication number: CN103335103A
Application number: CN2013102929041A
Authority: CN
Inventors: 李水波; 姚兴珍
Original assignee: KUNSHAN XINLAI CLEAN APPLIED MATERIALS CO Ltd
Current assignee: KUNSHAN XINLAI CLEAN APPLIED MATERIALS CO Ltd
Priority date: 2013-07-12
Filing date: 2013-07-12
Publication date: 2013-10-02

Abstract

The invention discloses a sealing mechanism without a dead angle. The sealing mechanism without the dead angle comprises an upper sealing body (10) and a lower sealing body (12), wherein the upper sealing body (10) is provided with an upper sealing surface (14), the lower sealing body (12) is provided with a lower sealing surface (16), the upper sealing surface (14) and the lower sealing surface (16) are opposite to each other, sealing grooves (18) are formed in the upper sealing surface (14), an elastic annular ring (20) is arranged in each sealing groove (18), and each sealing groove (18) is provided with two side walls (22). The sealing mechanism without the dead angle is characterized in that a height difference (24) exists between the two side walls (22) of each sealing groove (18). The sealing mechanism without the dead angle is good in sealing performance and not provided with the dead angle. Therefore, the sealing mechanism without the dead angle can be well applicable to an environment with a high cleanness requirement.

Description

The sealing mechanism at no dead angle

Technical field

The present invention relates to a kind of sealing mechanism, relate in particular to a kind of sealing configuration that does not have the dead angle.

Background technique

As everyone knows; usually can use various sealing mechanisms aborning; to prevent the leakage of liquid or gas medium; wherein O type rubber ring is more common a kind of Sealing; it is most widely used general in hydropneumatic mechanism; it is convenient to have the little mounting or dismounting of size; static and dynamic sealing is advantage such as available all; yet still other problem can appear when being used; sealing mechanism as shown in Figure 1; comprise seal 1 and lower seal body 3; have the last sealing surface and the lower sealing surface that arrange in opposite directions on last seal 1 and the lower seal body 3 respectively; offer seal groove at last sealing surface; O type rubber ring 2 is arranged in the seal groove; last seal is oppressed O type rubber ring 2 on lower sealing surface; because O type rubber ring 2 is rubber material; therefore; after being squeezed, its part of stretching out seal groove can produce deformation to both sides; can't tight closure thereby make between sealing surface and the lower sealing surface; to such an extent as to generation gap; the existence in this gap easily becomes the residual dead angle of medium; easily cause bacteria breed, so above-mentioned sealing mechanism can't be applicable to clean industry, namely can't be applicable to the industry higher to the health class requirement.

Summary of the invention

Technical problem to be solved by this invention provides a kind of sealing better and does not have the sealing mechanism at dead angle.

For solving the problems of the technologies described above, the invention provides a kind of sealing mechanism that does not have the dead angle, comprise seal and lower seal body, described going up on the seal has last sealing surface, has lower sealing surface on the described lower seal body, and described upward sealing surface and described lower sealing surface arrange in opposite directions, described going up on the sealing surface offers seal groove, be provided with the ring-like circle of rubber-like in the described seal groove, described seal groove has two sidewalls, has height difference between described two sidewalls.

Described ring-like circle is O type rubber ring.

Described upward sealing surface and described lower sealing surface are sealing plane.

The nearly described sidewall of going up the sealing surface edge is lower than another sidewall in two sidewalls of described seal groove, when the height difference between described two sidewalls can make described ring-like circle stressed only the side than low sidewall to described seal groove produce deformation.

Compared with prior art, beneficial effect of the present invention is:

Owing to have height difference between two sidewalls of seal groove in the sealing mechanism of the present invention, like this when the ring-like circle of compressing, it only can produce deformation to the side than low sidewall, going up sealing surface and lower sealing surface so just can be closed fully, closely contact, between can not have any gap, exist thereby do not have the dead angle, to such an extent as to do not have bacteria breed, therefore sealing of the present invention better and do not have the dead angle can be applicable in the environment that cleaning has relatively high expectations preferably.

Description of drawings

Fig. 1 is the structural representation of existing sealing mechanism;

Fig. 2 is structural representation of the present invention;

Fig. 3 is for going up the structural representation of seal among the present invention;

Among the figure: go up seal 10, lower seal body 12, last sealing surface 14, lower sealing surface 16, seal groove 18, ring-like circle 20, sidewall 22, height difference 24.

Embodiment

Below in conjunction with the drawings and specific embodiments the present invention is described in further detail

Referring to Fig. 2 and shown in Figure 3, a kind of sealing mechanism that does not have the dead angle of the present invention, include seal 10 and lower seal body 12, wherein go up and have last sealing surface 14 on the seal 10, has lower sealing surface 16 on the lower seal body 12, preferred upward sealing surface 12 and lower sealing surface 14 are the plane, and last sealing surface 14 and lower sealing surface 16 arrange in opposite directions, wherein, offer seal groove 18 at last sealing surface 14, be provided with the ring-like circle 20 of rubber-like in the sealing groove 18, preferred annular ring 20 is O type rubber ring, this O type rubber ring is arranged in the seal groove 18, and the outside that part is stretched out seal groove 18, seal groove 18 has two and the contacted sidewall 22 in 0 type rubber ring surface, focus on: have height difference 24 between these two sidewalls 22, a sidewall that is seal groove 18 is higher than another sidewall, because antermarginal sidewall is lower than another sidewall, make the both sides of seal groove 18 be step-like (referring to Fig. 3) like this, this structural design makes that it only produces deformation to a side when compressing 0 type rubber ring, namely produce deformation to sidewall lower a side or the lower side of step, simultaneously, height difference between two sidewalls 22 can reach and accommodate the deformation that O type rubber ring produces fully, going up sealing surface 14 and lower sealing surface 16 so just can be closed fully, closely contact, between can not have any gap, do not exist thereby do not have the dead angle, to such an extent as to do not have bacteria breed.

The above only is preferred embodiments of the present invention; protection scope of the present invention is not limited with above-mentioned mode of execution; as long as the equivalence that those of ordinary skills do according to disclosed content is modified or changed, all should include in the protection domain of putting down in writing in claims.

Claims

1. sealing mechanism that does not have the dead angle, comprise seal (10) and lower seal body (12), described going up on the seal (10) has last sealing surface (14), has lower sealing surface (16) on the described lower seal body (12), described upward sealing surface (14) and described lower sealing surface (16) arrange in opposite directions, described going up on the sealing surface (14) offers seal groove (18), be provided with the ring-like circle of rubber-like (20) in the described seal groove (18), described seal groove (18) has two sidewalls (22), it is characterized in that: have height difference (24) between described two sidewalls (22).

2. sealing mechanism according to claim 1, it is characterized in that: described ring-like circle (20) is O type rubber ring.

3. sealing mechanism according to claim 1 and 2 is characterized in that: describedly go up sealing surface (14) and described lower sealing surface (16) is sealing plane.

4. sealing mechanism according to claim 1, it is characterized in that: the nearly described sidewall of going up sealing surface (12) edge is lower than another sidewall in two sidewalls of described seal groove (18), when the height difference (24) between described two sidewalls (22) can make described ring-like circle (20) stressed only the side than low sidewall to described seal groove (18) produce deformation.