CN210890211U

CN210890211U - Combined pressure regulating film structure

Info

Publication number: CN210890211U
Application number: CN201922154808.6U
Authority: CN
Inventors: 姜子凡; 姜玉华; 朱仲华; 赵聪聪
Original assignee: Qingdao Yike Rubber & Plastic Co ltd
Current assignee: Qingdao Yike Rubber & Plastic Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-06-30
Anticipated expiration: 2029-12-05

Abstract

The utility model belongs to the technical field of the diaphragm, especially, relate to a modular pressure regulating diaphragm structure. Not enough to prior art exists, the utility model aims to solve the technical problem that a combination formula pressure regulating diaphragm structure that the assembly is simple, lightweight, sensitivity is high, the assembly does not have the danger of secondary damage is provided. In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a combined pressure regulating diaphragm structure comprises an upper hard core and a lower hard core which are matched up and down, wherein a pressure regulating diaphragm is arranged between the upper hard core and the lower hard core; go up the hard core and be equipped with the rubber locking groove, down the hard core be equipped with the lower rubber locking groove that the rubber locking groove link up, the rubber locking groove is the letter "I" shape respectively with lower rubber locking groove, go up rubber locking groove and lower rubber locking groove and glue injection realization pressure regulating diaphragm and last hard core and the fixed connection between the hard core down, hard core circle center department is equipped with down the rubber locking groove down.

Description

Combined pressure regulating film structure

Technical Field

The utility model belongs to the technical field of the diaphragm, especially, relate to a modular pressure regulating diaphragm structure.

Background

At present, a common combined pressure regulating diaphragm is generally formed by connecting a diaphragm prepared by mould pressing vulcanization and a hard core prepared by mould pressing vulcanization through assembling bolts. When the combined pressure regulating membrane is in an open state, the combined pressure regulating membrane is not in contact with the air inlet and the driving mechanism, and airflow flows out of the cavity through the vent holes on the membrane after coming out of the air inlet; when the tube wall is in a state, the combined pressure regulating diaphragm is driven by the driving mechanism to make the hard core of the combined pressure regulating diaphragm in and out sealed and generate a certain compression amount to play a role in sealing, and airflow cannot flow out of the air inlet under the sealing force so as to achieve the role in blocking the airflow. The advantages of the sealing strip are: the combined pressure regulating membrane has good sealing effect; simple structure and easy production. The disadvantages are as follows: on one hand, post-assembly is needed, so that the working procedures are increased, and the cost is increased; in order to meet the assembly requirement, the upper hard core and the lower hard core need to be thickened to meet the requirement of bolt connection, so that the weight of the whole diaphragm is increased, and the sensitivity of the diaphragm is reduced; in the third aspect, the combined pressure regulating membrane is easy to cause secondary damage due to subsequent assembly, so that potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to solve the technical problem that a combination formula pressure regulating diaphragm structure that the assembly is simple, lightweight, sensitivity is high, the assembly does not have the danger of secondary damage is provided.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a combined pressure regulating diaphragm structure comprises an upper hard core and a lower hard core which are matched up and down, wherein a pressure regulating diaphragm is arranged between the upper hard core and the lower hard core; go up the hard core and be equipped with the rubber locking groove, down the hard core be equipped with the lower rubber locking groove that the rubber locking groove link up, the rubber locking groove is the letter "I" shape respectively with lower rubber locking groove, go up rubber locking groove and lower rubber locking groove and glue injection realization pressure regulating diaphragm and last hard core and the fixed connection between the hard core down, hard core circle center department is equipped with down the rubber locking groove down.

Foretell combination formula pressure regulating diaphragm structure, go up the rubberizing groove and include the last annular groove that hard core top surface circumference was seted up, go up the annular groove equipartition and be equipped with the round hole, it is located to go up the round hole bottom set up last circular slot on the hard core.

In the combined pressure regulating diaphragm structure, the width of the upper annular groove is greater than the diameters of the upper round hole and the upper circular groove, and the diameter of the upper round hole is smaller than that of the upper circular groove.

Foretell combination formula pressure regulating diaphragm structure, the lower ring channel that the lower lock glue groove was seted up including hard core top surface circumference down, the ring channel equipartition is equipped with down the round hole down, the round hole bottom is located seted up down circular slot down on the hard core.

In the combined pressure regulating diaphragm structure, the width of the lower annular groove is equal to the diameter of the lower circular groove, and the diameter of the lower circular hole is smaller than that of the lower circular groove.

The utility model discloses modular pressure regulating membrane structure's advantage is:

1. the combined pressure regulating diaphragm structure of the utility model changes the traditional mode that the upper and lower hard cores are fixed by bolts and nuts, adopts the matching mode that the upper and lower hard cores are provided with the upper rubber locking groove and the lower rubber locking groove, and the rubber injection can complete the fixation of the diaphragm and the hard core; the fixing pressure regulating membrane is firmer, and the thickness of the upper hard core and the lower hard core is reduced by the fixing mode so as to reduce the weight of the combined pressure regulating membrane and accord with the modern light weight and large direction trend; meanwhile, the existing bolt post-assembly process is removed, secondary damage is avoided, and potential safety hazards are reduced.

2. The utility model discloses combination formula pressure regulating diaphragm structure, upper rubber groove and lower rubber groove design into approximate letter "I" shape, link into an integrated entity upper and lower hard core and pressure regulating diaphragm through the injecting glue mode, because "I" shape is wide, middle narrow structure from top to bottom, consequently can firmly fix, guarantee in the use diaphragm and hard core not peel off after the sizing material pours into, the injecting glue also can further alleviate the weight of combination formula pressure regulating diaphragm structure simultaneously.

3. The utility model discloses traditional bolt structure is compared to combination formula pressure regulating diaphragm structure the utility model discloses structural cost has reduced 15%, and weight has descended 30%, and sensitivity obviously improves.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the upper hard core structure of the present invention;

FIG. 3 is a view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of the lower hard core structure of the present invention;

fig. 5 is a view from B-B in fig. 4 according to the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Embodiment 1, as shown in fig. 1, a combined pressure regulating membrane structure includes an upper hard core 1 and a lower hard core 2 which are vertically matched, and a pressure regulating membrane 3 is arranged between the upper hard core 1 and the lower hard core 2; go up hard core 1 and be equipped with upper rubber groove 11, hard core 2 be equipped with down the lower rubber groove 21 that has a perfect understanding with upper rubber groove 11, upper rubber groove 11 and lower rubber groove 21 are letter "I" shape respectively, glue injection realization pressure regulating diaphragm 3 and upper hard core 1 and the fixed connection between the hard core 2 down in upper rubber groove 11 and

lower rubber groove

21, 2 round centers of hard core department is equipped with down rubber groove 22 down.

Embodiment 2, as shown in fig. 2 and 3, based on embodiment 1, the upper locking rubber groove 11 includes an upper annular groove 111 formed in the circumferential direction of the top surface of the upper hard core 1, upper circular holes 112 are uniformly distributed in the upper annular groove 111, and an upper circular groove 113 is formed in the bottom of the upper circular hole 112 and located on the upper hard core 1.

Embodiment 3, as shown in fig. 2 and 3, in addition to embodiment 2, the width of the upper annular groove 111 is larger than the diameters of the upper circular hole 112 and the upper circular groove 113, and the diameter of the upper circular hole 112 is smaller than the diameter of the upper circular groove 113.

Embodiment 4, as shown in fig. 4 and 5, based on embodiment 1, the lower glue-locking groove 21 includes a lower annular groove 211 formed in the circumferential direction on the top surface of the lower hard core 2, lower circular holes 212 are uniformly distributed in the lower annular groove 211, and a lower circular groove 213 is formed in the bottom of the lower circular hole 212 and located on the lower hard core 2.

Embodiment 5, as shown in fig. 1 and 2, in embodiments 4 and 5, the width of the lower annular groove 211 is equal to the diameter of the lower circular groove 213, and the diameter of the lower circular hole 212 is smaller than the diameter of the lower circular groove 213.

The structure of the existing combined pressure regulating membrane is improved, and the existing bolt fixing mode after assembly is removed; adopt the utility model discloses the structural style in last gluey groove, lower gluey groove produces through the synchronous mould pressing of diaphragm and upper and lower hard core vulcanizes, one step of process can, need not the secondary assembly. In the vulcanization preparation process, rubber and metal hot vulcanization adhesive are injected into the upper rubber locking groove and the lower rubber locking groove of the upper hard core and the lower hard core, so that the rubber material can firmly connect the diaphragm and the hard core into a whole, and the diaphragm and the hard core are prevented from being peeled off in use.

The present invention has been described above by way of example with reference to the accompanying drawings, and it is to be understood that the specific implementations of the present invention are not limited to the above-described embodiments. The present invention can be modified or modified by those skilled in the art without departing from the technical idea of the present invention, and such modifications or modifications naturally fall within the scope of the present invention.

Claims

1. The utility model provides a modular pressure regulating diaphragm structure which characterized in that: the device comprises an upper hard core (1) and a lower hard core (2) which are matched up and down, wherein a pressure regulating film (3) is arranged between the upper hard core (1) and the lower hard core (2); go up hard core (1) and be equipped with upper rubber groove (11), hard core (2) be equipped with down with lower rubber groove (21) that upper rubber groove (11) link up, upper rubber groove (11) and lower rubber groove (21) are letter "I" shape respectively, upper rubber groove (11) and lower rubber groove (21) glue injection realization pressure regulating diaphragm (3) and upper hard core (1) and the fixed connection between hard core (2) down, hard core (2) circle center department is equipped with down rubber groove (22) down.

2. The combined pressure regulating membrane structure of claim 1, wherein: the upper rubber locking groove (11) comprises an upper annular groove (111) formed in the circumferential direction of the top surface of the upper hard core (1), upper round holes (112) are uniformly distributed in the upper annular groove (111), and the bottom of each upper round hole (112) is located on the upper hard core (1) and is provided with an upper round groove (113).

3. The combined pressure regulating membrane structure of claim 2, wherein: the width of the upper annular groove (111) is larger than the diameters of the upper round hole (112) and the upper circular groove (113), and the diameter of the upper round hole (112) is smaller than the diameter of the upper circular groove (113).

4. The combined pressure regulating membrane structure of claim 1, wherein: the lower glue locking groove (21) comprises a lower annular groove (211) formed in the circumferential direction of the top surface of the lower hard core (2), lower round holes (212) are uniformly distributed in the lower annular groove (211), and the bottom of each lower round hole (212) is located on the lower hard core (2) and provided with a lower round groove (213).

5. The combined pressure regulating membrane structure of claim 4, wherein: the width of the lower annular groove (211) is equal to the diameter of the lower circular groove (213), and the diameter of the lower circular hole (212) is smaller than the diameter of the lower circular groove (213).