1. The bow-shaped frame of the diaphragm type pressure gauge is characterized by comprising a bottom (1), a first window (7), ribs (2), a second window (11) and an upper part (4), which are sequentially arranged, wherein the first window (7) and the second window (11) are arranged in a staggered mode, and one of the first window (7) is taken as an example: the two sides of the first window (7) are respectively provided with a first fulcrum (8) and a third fulcrum (10), the middle of the first window (7) is provided with a second fulcrum (9), the first fulcrum (8) and the third fulcrum (10) are used for connecting the bottom (1) and the rib (2), the second fulcrum (9) is used for connecting the rib (2) and the upper portion (4), and the second fulcrum (9) is located on a perpendicular bisector between the first fulcrum (8) and the third fulcrum (10).

2. The bow of a diaphragm pressure gauge according to claim 1, wherein: the upper end face of the upper portion (4) is provided with an opening (6), one side of the opening (6) is provided with through holes (5), and the number of the through holes (5) is two.

3. The machining process of the bow-shaped frame of the diaphragm type pressure gauge is characterized by comprising the following steps of:

s1, blanking: punching the raw material in advance to form a through hole (5), an opening (6) and a pre-punched notch (3) to obtain a pre-punched part;

s2, forming: and placing the pre-punched part in a frustum-shaped die for punching, and increasing the height between the bottom (1) and the upper part (4) so that the pre-punched notch (3) forms a first window (7) and a second window (11) to obtain a formed part.

4. The process for machining the bow of the diaphragm pressure gauge according to claim 3, wherein the process comprises the following steps: the side surface formed by the ribs (2) of the formed part is a conical surface or a cylindrical surface.

Background

The pressure gauge is a meter which takes an elastic element as a sensitive element and measures and indicates the pressure higher than the ambient pressure, is very commonly applied and almost extends to all the fields of industrial processes and scientific researches.

The diaphragm pressure gauge usually adopts a bow-shaped frame component, and the structure is a supporting frame of an internal structure. The bow-shaped frame in the pressure gauge in the prior art is formed by multiple times of die pressing and punched for multiple times, and the side debugging window is designed in a four-hole uniform distribution mode. The bow-shaped frame is punched, the production procedures are multiple, the range of the debugging window extending into the tool is narrow, the installation and debugging of the pressure gauge are not facilitated, the production efficiency is low, the processing cost is high, and the like.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the bow-shaped frame of the diaphragm pressure gauge, and solves the problems that the bow-shaped frame in the pressure gauge in the prior art is high in production cost and is not beneficial to debugging of the pressure gauge.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: the bow-shaped frame of the diaphragm type pressure gauge comprises a bottom, a first window, ribs, a second window and an upper part which are sequentially arranged, wherein the first window and the second window are arranged in a staggered mode, and one of the first windows is taken as an example: the two sides of the first window are respectively provided with a first fulcrum and a third fulcrum, the middle of the first window is provided with a second fulcrum, the first fulcrum and the third fulcrum are used for connecting the bottom and the rib, the second fulcrum is used for connecting the rib and the upper part, and the second fulcrum is positioned on a perpendicular bisector between the first fulcrum and the third fulcrum.

Preferably, an opening is formed in the upper end face of the upper portion, through holes are formed in one side of the opening, and the number of the through holes is two.

Preferably, the machining process of the bow of the diaphragm pressure gauge comprises the following steps:

s1, blanking: pre-punching the raw material to form a through hole, an opening and a pre-punching notch to obtain a pre-punching piece;

s2, forming: and placing the pre-punched part in a frustum-shaped die for punching, and increasing the height between the bottom and the upper part to enable the pre-punched notch to form a first window and a second window so as to obtain a formed part.

Preferably, the side surface formed by the rib of the molding member is a conical surface or a cylindrical surface.

(III) advantageous effects

The invention provides a bow-shaped frame of a diaphragm pressure gauge. The method has the following beneficial effects:

compared with the traditional processing of the adjusting window, the invention not only can reduce the consumption of materials, but also is beneficial to reducing the steps of low production procedures and reducing the production cost.

Drawings

FIG. 1 is a schematic pre-forming view of the present invention;

FIG. 2 is a schematic view of the invention after molding.

Wherein, 1, bottom; 2. ribs; 3. pre-punching a notch; 4. an upper portion; 5. a through hole; 6. an opening; 7. a first window; 8. a first fulcrum; 9. a second fulcrum; 10. a third fulcrum; 11. a second window.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 2, an embodiment of the present invention provides a bow for a diaphragm pressure gauge, which includes a bottom 1, a first window 7, a rib 2, a second window 11, and an upper portion 4, which are sequentially arranged, wherein the first window 7 and the second window 11 are arranged in a staggered manner, and when assembling the pressure gauge, a tool is used to pass through the first window 7 or the second window 11 to adjust the pressure gauge, taking one of the first windows 7 as an example: the two sides of the first window 7 are respectively provided with a first fulcrum 8 and a third fulcrum 10, the middle of the first window 7 is provided with a second fulcrum 9, the first fulcrum 8 and the third fulcrum 10 are used for connecting the bottom 1 and the rib 2, the second fulcrum 9 is used for connecting the rib 2 and the upper portion 4, and the second fulcrum 9 is located on a perpendicular bisector between the first fulcrum 8 and the third fulcrum 10.

The up end of upper portion 4 is provided with opening 6 for the installation window for observe the registration of manometer, and one side of opening 6 is provided with through-hole 5, and the quantity of through-hole 5 is two, and through-hole 5 is used for settling button or knob for the school of manometer is zero.

Example two:

a processing technology for a bow-shaped frame of a diaphragm type pressure gauge comprises the following steps:

s1, blanking: punching a raw material in advance to form a through hole 5, an opening 6 and a pre-punched notch 3 to obtain a pre-punched piece, wherein the specific structure is shown in figure 1;

s2, forming: and (3) placing the pre-punched part in a frustum-shaped die for punching, and increasing the height between the bottom part 1 and the upper part 4 so that the pre-punched notch 3 forms a first window 7 and a second window 11 to obtain a formed part, wherein the specific structure is shown in fig. 2.

The side formed by the ribs 2 of the profile is either conical or cylindrical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.