CN202013258U

CN202013258U - Diaphragm type fire extinguisher pressure display

Info

Publication number: CN202013258U
Application number: CN2011200289047U
Authority: CN
Inventors: 孔载明
Original assignee: HANGZHOU JIXING INSTRUMENT MACHINERY CO Ltd
Current assignee: HANGZHOU JIXING INSTRUMENT MACHINERY CO Ltd
Priority date: 2011-01-27
Filing date: 2011-01-27
Publication date: 2011-10-19
Anticipated expiration: 2021-01-27

Abstract

Disclosed is a diaphragm type fire extinguisher pressure display, which saves cost and manufacture procedure. A case is provided with a diaphragm (2) and a movement assembly (4) inside, a pointer shaft of the movement assembly is connected with a pointer (6), a transparent meter cover (7) is arranged on an opening on the upper end of the case, the case is composed of a screwed joint (1) and an outer casing (3), the screwed joint is provided with an opening at the upper end and a through hole on the lower end, the opening at the upper end of the screwed joint is provided with an annular flange (1) extending radially, the outer casing is provided with openings at the upper and lower ends, and a flange (31) extending radially on the upper portion, the flange is provided with symmetrical plain sawn gaps (311), the lower portion of the axial annular wall of the diaphragm is sleeved on the annular flange of the screwed joint, the opening at the lower end of the outer casing is sleeved on the axial annular wall of the diaphragm, the opening at the lower end of the outer casing, the lower end portion of the axial annular wall of the diaphragm and the annular flange of the screwed joint are welded and fastened. The display of the utility model is suitable for pressure display of gas system.

Description

Diaphragm type flame snuffer pressure display unit

Technical field

The utility model relates to the apparatus of gaseous tension in the measuring system.

Background technology

Diaphragm type flame snuffer pressure display unit is used for gaseous tension in the measuring system, and it is to produce elastic deformation by diaphragm with gas pressure change, and the deformation of diaphragm converts the swing displacement of pointer to, is instructed to out the expression measurement result on dial scale.This diaphragm type pressure display unit in the prior art, its housing adopt the whole punching press of copper material, and the surplus cut is made again, causes processing capacity big thus, the material cost height.Besides, the movement assembly of existing this pressure display unit is fixed by jump ring, and this has increased the workload and the jump ring cost of cut jump ring groove again.

Summary of the invention

It is big that the utility model will solve existing diaphragm type flame snuffer pressure display unit fabrication and processing amount, the problem that material cost is high, a kind of diaphragm type flame snuffer pressure display unit of the present utility model is provided for this reason, and this diaphragm type flame snuffer pressure display unit fabrication and processing amount is little, and the cost of material is low.

For addressing the above problem, the technical solution adopted in the utility model is to be provided with diaphragm and movement assembly in housing, be pasted with dial plate above the movement assembly with scale, be connected with pointer on the needle pivot of movement assembly, housing upper end open portion is provided with transparent table lid, what it was special is that described housing is made up of threaded connector and shell, described threaded connector upper end open, the lower end has through hole, threaded connector upper end open portion has the radially annular flange flange of extension, on the described shell, lower ending opening, shell upper has the flange that radially extends out, the flat-cut breach that has symmetry on this flange, the axial ring wall bottom of described diaphragm is coated at the annular flange flange of described threaded connector, described shell lower ending opening portion is coated at the axial ring wall of diaphragm, shell lower ending opening portion, the axial ring wall bottom of diaphragm and the annular flange flange of threaded connector are welded to each other fixing.

Its inwall of described shell has the bottom-up step that radially extends out formation, and described movement assembly is held on described step, and the movement assembly also welds with outer casing inner wall.

The through hole of the lower end of threaded connector described in the utility model can be welded with filter screen.

The housing that the utility model changes copper whole punching press is the housing of split welding, so can adopt the ferrous material extrusion modling manufacturing that comprises stainless steel, can accomplish few cutting or not have cut.Particularly described threaded connector, extrusion modling only need be bored the lower end through hole, has reduced to comprise that stainless ferrous metal is difficult for boring the difficulty of aperture, when saving material cost, also simplified to a certain extent and added technology, saved machining period, and have the good result of energy-conserving and environment-protective; Owing to welding itself, the utility model can guarantee the impermeability requirement again.The movement assembly is welded in the utility model of outer casing inner wall, has further simplified processing technology, provides cost savings.

Description of drawings

Fig. 1 is the table lid synoptic diagram in the utility model;

Fig. 2 is the pointer synoptic diagram in the utility model;

Fig. 3 is the dial plate synoptic diagram in the utility model;

Fig. 4 is the movement assembly synoptic diagram in the utility model;

Fig. 5 is threaded connector, diaphragm and the shell solder bond component diagram in the utility model;

Fig. 6 is the utility model structural representation;

Fig. 7 is the utility model outside drawing;

Fig. 8 is Fig. 7 vertical view.

Be labeled as among the figure: 1 threaded connector, 11 annular flange flange, 2 diaphragms, 3 shells, 31 flanges, 311 flat-cut breach, 4 movement assemblies, 5 dial plates, 6 pointers, 7 table lids, 8 filter screens, P weld part.

Embodiment

Diaphragm type flame snuffer pressure display unit is provided with diaphragm 2 and movement assembly 4 in the housing, be pasted with the dial plate 5 with scale above the movement assembly, is connected with pointer 6 on the needle pivot of movement assembly, and housing upper end open portion is provided with transparent table lid 7; Described housing is made up of threaded connector 1 and shell 3, threaded connector 1 upper end open, the lower end has through hole, be welded with filter screen 8 on this through hole, threaded connector upper end open portion has the radially annular flange flange 11 of extension, on the shell 3, lower ending opening, shell upper has the flange 31 that radially extends out, the flat-cut breach 311 that has symmetry on this flange, being fit to pressure display unit installs, disassembling section, the axial ring wall bottom of diaphragm 2 is coated at the annular flange flange 11 of threaded connector, shell 3 lower ending opening portions are coated at the axial ring wall of diaphragm 2, shell 3 lower ending opening portions, the axial ring wall bottom of diaphragm 2 and the annular flange flange 11 of threaded connector are welded to each other fixing; Outer casing inner wall has the bottom-up step that radially extends out formation, and movement assembly 4 is held on this step, and the movement assembly also welds with outer casing inner wall.

Claims

1. diaphragm type flame snuffer pressure display unit, be provided with diaphragm (2) and movement assembly (4) in the housing, be pasted with dial plate (5) above the movement assembly with scale, be connected with pointer (6) on the needle pivot of movement assembly, housing upper end open portion is provided with transparent table lid (7), it is characterized in that described housing is made up of threaded connector (1) and shell (3), described threaded connector upper end open, the lower end has through hole, threaded connector upper end open portion has the radially annular flange flange of extension (11), on the described shell, lower ending opening, shell upper has the flange (31) that radially extends out, the flat-cut breach (311) that has symmetry on this flange, the axial ring wall bottom of described diaphragm is coated at the annular flange flange of described threaded connector, described shell lower ending opening portion is coated at the axial ring wall of diaphragm, shell lower ending opening portion, the axial ring wall bottom of diaphragm and the annular flange flange of threaded connector are welded to each other fixing.

2. diaphragm type flame snuffer pressure display unit as claimed in claim 1 is characterized in that its inwall of described shell has the bottom-up step that radially extends out formation, and described movement assembly is held on described step, and the movement assembly also welds with outer casing inner wall.