CN208637363U - A kind of diaphragm unit of blast switch - Google Patents

Abstract

The utility model discloses a kind of diaphragm units of blast switch, including diaphragm support, diaphragm support is equipped with mandril, the periphery of diaphragm support is provided with ring film, offer at least one through hole on the diaphragm support, the ring film be equipped with take shape in inside the through hole and with the integrally formed connecting column of ring film；The diaphragm unit of the above structure forms ring film on the diaphragm support for being equipped with through hole, using taking shape in inside through hole and ring film be fixed on diaphragm support with the connecting column of ring film one, improve the air-tightness and structural stability of diaphragm unit, it avoids damaging ring film during producing diaphragm unit, and the production process of diaphragm unit is simplified, production efficiency is improved.

Description

A kind of diaphragm unit of blast switch

Technical field

The utility model relates to switching technique field more particularly to a kind of diaphragm units of blast switch.

Background technique

Blast switch is a kind of detecting element, is commonly used in and needs wind pressure mechanically, such as gas heater, wall-hung boiler Deng the electric equipment products for using combustion gas class, it is the on-off for pushing microswitch to realize electric current using the static pressure of gas.

And blast switch includes the diaphragm unit of setting inside housings, diaphragm unit is used to shell being divided into two pressures Power cavity, diaphragm unit include circular support, and circular support is equipped with mandril, and circular support periphery is provided with ring film.Mesh The structure of preceding diaphragm unit is shown referring to Fig.1, has the groove of the inward flange of accommodating ring film 2 ', circle on circular support 1 ' Shape bracket 1 ', which is equipped with, is located at groove inside and bending part 11 ' of the bending outwardly to be resisted against on the surface of ring film 2 ', The bending part 11 ' of the diaphragm unit of the above structure is easy to pierce through ring film 2 ', is easy between bending part 11 ' and ring film 2 ' The detecting function that the case where generation gap, these influence diaphragm unit air-tightness will lead to blast switch is impaired；Secondly, this The diaphragm unit structural stability of structure is poor, and diaphragm unit is also easy to happen damage, and production process in use It is cumbersome, it is unfavorable for manufacturing.

Utility model content

To solve the above-mentioned problems, the purpose of this utility model is to provide a kind of stable structure, the preferable wind of air-tightness The diaphragm unit to compress switch.

The utility model be solve its technical problem and the technical solution adopted is that:

A kind of diaphragm unit of blast switch, including diaphragm support, diaphragm support are equipped with mandril, the periphery of diaphragm support It is provided with ring film, at least one through hole is offered on the diaphragm support, the ring film is equipped with and takes shape in institute State inside through hole and with the integrally formed connecting column of ring film.

The diaphragm support is rounded lamellar, and the circumferential edges of diaphragm support are intervally distributed with several through holes, institute Ring film is stated to take shape in the circumferential edges of diaphragm support and all through holes can be run through to form the connecting column, Jin Eryu Diaphragm support forms integral structure.

The ring film includes being separately formed in the upper bound edge of the upper and lower surfaces of the circumferential edges of diaphragm support With lower bound edge, the both ends of the connecting column are connect with upper bound edge and lower bound edge respectively, and upper bound edge, connecting column and lower bound edge constitute work Word structure.

The one end in the upper bound edge and lower bound edge towards outside is connected and is formed between connecting column for wrapping up diaphragm The package space of the circumferential edges of bracket.

The outer edge of the ring film is equipped with the positioning protrusion for installing positioning.

The beneficial effects of the utility model are: the diaphragm unit of the above structure forms on the diaphragm support for being equipped with through hole Ring film, using taking shape in inside through hole and ring film is fixed on diaphragm support with the connecting column of ring film one On, the air-tightness and structural stability of diaphragm unit are improved, avoids damaging ring film during producing diaphragm unit, and And the production process of diaphragm unit is simplified, improve production efficiency.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of traditional diaphragm unit；

Fig. 2 is the structural schematic diagram of the utility model；

Fig. 3 is the structural decomposition diagram of Fig. 2；

Fig. 4 is the cross section structure schematic diagram of the utility model；

Fig. 5 is the partial enlarged view of part A in Fig. 4.

Specific embodiment

Utility model will be further described in detail below with reference to the attached drawings and specific embodiments, however, it is desirable to say Bright, the explanation to following implementation is schematically, not constitute the specific restriction to the utility model.

Referring to figs. 1 to Fig. 5, a kind of diaphragm unit of blast switch, including diaphragm support 1, diaphragm support 1 are equipped with mandril 2, in the present embodiment, the mandril 2 is integrally formed with diaphragm support 1 by resin material, and the periphery of diaphragm support 1 is provided with ring Shape diaphragm 3 offers at least one through hole 11 on the diaphragm support 1, and the ring film 3, which is equipped with, takes shape in described pass through Perforation 11 inside and with the integrally formed connecting column 31 of ring film 3.In the present embodiment, the diaphragm support 1 is rounded thin Several through holes 11 are distributed in plate, the circumferential edges of diaphragm support 1 evenly and at intervals, and the ring film 3 takes shape in film The circumferential edges of plate rack 1 can simultaneously form the connecting column 31 through all through holes 11, and then be formed with diaphragm support 1 Integral structure.The diaphragm unit of the above structure forms ring film 3 on the diaphragm support 1 for being equipped with through hole 11, utilizes molding Ring film 3 is fixed on diaphragm support 1 in 11 inside of through hole and with the connecting column 31 of 3 one of ring film, improves film The air-tightness and structural stability of piece component are avoided damaging ring film 3 during producing diaphragm unit, and are simplified The production process of diaphragm unit improves production efficiency.

Wherein, the ring film 3 includes the upper and lower surfaces being separately formed in the circumferential edges of diaphragm support 1 Upper bound edge and lower bound edge, the both ends of the connecting column 31 are connect with upper bound edge and lower bound edge respectively, upper bound edge, connecting column 31 and under Bound edge constitutes I-shaped structure.

The one end in the upper bound edge and lower bound edge towards outside is connected and is formed between connecting column 31 for wrap film The package space of the circumferential edges of plate rack 1, package space can further by ring film 3 and diaphragm support 1 firmly It links into an integrated entity.

Preferably, the outer edge of the ring film 3 is equipped with the positioning protrusion 32 for installing positioning, the positioning protrusion 32 For positioning the housing unit for being fixed on blast switch.

The foregoing is merely the preferred embodiments of the utility model, however it is not limited to above specific embodiment, as long as Realize that the technical solution of the utility model aim belongs within the protection scope of the utility model with essentially identical means.

Claims (5)

1. a kind of diaphragm unit of blast switch, including diaphragm support, diaphragm support is equipped with mandril, and the periphery of diaphragm support is set It is equipped with ring film, it is characterised in that:

At least one through hole is offered on the diaphragm support, the ring film is equipped with and takes shape in inside the through hole And with the integrally formed connecting column of ring film.

2. a kind of diaphragm unit of blast switch as described in claim 1, it is characterised in that:

The diaphragm support is rounded lamellar, and the circumferential edges of diaphragm support are intervally distributed with several through holes, the ring Shape diaphragm takes shape in the circumferential edges of diaphragm support and can be through all through hole to form the connecting column, and then and diaphragm Bracket forms integral structure.

3. a kind of diaphragm unit of blast switch as claimed in claim 2, it is characterised in that:

The ring film includes being separately formed the upper bound edge in the upper and lower surfaces of the circumferential edges of diaphragm support under Bound edge, the both ends of the connecting column are connect with upper bound edge and lower bound edge respectively, and upper bound edge, connecting column and lower bound edge constitute I-shaped knot Structure.

4. a kind of diaphragm unit of blast switch as claimed in claim 3, it is characterised in that:

The one end in the upper bound edge and lower bound edge towards outside is connected and is formed between connecting column for wrapping up diaphragm support Circumferential edges package space.

5. a kind of diaphragm unit of blast switch as described in claim 1, it is characterised in that:

The outer edge of the ring film is equipped with the positioning protrusion for installing positioning.