TWM625438U - Composite diaphragm pressure gauge and installation combination structure thereof - Google Patents

Abstract

This creation proposes a composite diaphragm pressure gauge and its installation combination structure, which includes a bow frame, a dial set on the top wall of the bow frame, a movement set in a accommodating cavity inside the bow frame, and a dial set on the dial The indicator needle is driven by the movement, so that the indicator needle can turn over and over on the dial; in particular, an inner diaphragm and an outer gasket are arranged at the lower end of the accommodating cavity of the arch frame, and the inner diaphragm is an elastic metal sheet body , the outer gasket is a sheet body made of elastic plastic material, which closely covers the outer side of the inner diaphragm to form a composite diaphragm structure without an inner cavity or gap between the inner diaphragm and the outer gasket, which is used to be The pressure source directly exerts pressure on the outer gasket, so that the outer gasket and the inner diaphragm are compressed and deformed synchronously, thereby driving the movement of the movement. In this way, the composite diaphragm pressure gauge of this creation can prevent substances from remaining in the pressure gauge, and can also be used to measure vacuum and pressure values.

Description

Composite diaphragm pressure gauge and its installation combination structure

This creation is related to the technical field of diaphragm pressure gauges, especially a composite diaphragm pressure gauge and its installation combination structure, which enables the pressure source to directly exert pressure on the composite diaphragm of the pressure gauge, and avoids material residues in the pressure source. in the pressure gauge.

Referring to FIG. 1 , the existing diaphragm pressure gauge structure mainly includes an inner casing 100 , a diaphragm 101 is disposed at the lower end of the inner casing, a center seat 102 is disposed in the center of the diaphragm 101 , and an outer surface of the center seat 102 is disposed. A screw seat 103 is arranged on the surface, a center needle 104 is arranged in the screw seat 103, the upper end of the center needle 104 passes through the upper end of the inner shell 100, and a pointer seat 105 is arranged near the upper end of the center needle 104, and the pointer seat 105 An indicator needle 106 is arranged; a dial 107 is arranged on the upper surface of the inner casing 100, and the indicator needle 106 rotates above the dial 107; in addition, a base 108 is arranged at the lower end of the inner casing 100, and the upper end surface of the base 108 is recessed with a Adjacent to the inner cavity 1081 of the diaphragm 101 , a threaded pipe 1082 is protruded from the lower end or one side of the base 108 , and the threaded pipe 1082 communicates with the inner cavity 1081 . In this way, the threaded tube 1082 can be locked on the pressure cooker and other objects, so that the pressure in the pressure cooker enters the inner cavity 1081 through the threaded tube 1082 (as shown by the arrow in the figure), and then pushes the diaphragm 101 to deform. The deformation process pushes the screw seat 103, and then drives the indicator needle 106 to rotate, allowing the user to observe the pressure value.

However, when the above-mentioned conventional diaphragm pressure gauge is applied to food equipment, such as being installed on a pressure cooker, coffee machine or other food processing equipment, the pressure source measured often contains food substances, and the food substances enter the threaded pipe 1082 into the After the inner cavity 1081 of the base 108, residues often accumulate in the inner cavity 1081, which will affect food hygiene over time. It is more likely to cause inaccurate measurement of the diaphragm pressure gauge. Therefore, how to propose another type of diaphragm pressure gauge, which can improve the above-mentioned problems, and at the same time can be applied to various high temperature, high pressure, chemical or vacuum environments, is the subject that this creation will actively overcome.

The main purpose of this creation is to provide a composite diaphragm pressure gauge. The composite diaphragm pressure gauge has no inner cavity structure, and a metal diaphragm and an elastic plastic outer gasket cover the metal diaphragm, so that the pressure can be reduced. The source can directly press on the outer gasket and metal diaphragm to avoid the accumulation of residues in the pressure gauge, which is especially suitable for installation and application in food equipment and semiconductor equipment.

The secondary purpose of this creation is to provide a composite diaphragm pressure gauge, which consists of a metal diaphragm and an elastic plastic outer gasket to form a composite diaphragm, so that the outer surface of the metal diaphragm can be selected according to the requirements of the installation environment. Gasket material to achieve better high temperature resistance, high pressure resistance, corrosion resistance, chemical resistance, improved sealing and other characteristics.

Another object of this creation is to provide a composite diaphragm pressure gauge installation structure, so that the composite diaphragm pressure gauge can be installed on the pressure wall, so that the pressure source directly pushes the composite diaphragm, and achieves easy maintenance. Purpose.

In order to achieve the above-mentioned purpose, the preferred technical solution of the composite diaphragm pressure gauge of the present invention includes: a bow frame, which is an inner casing with a top wall, a side wall, a fixing ring and an accommodating cavity, the The periphery of the top wall is connected to the side wall, the upper end of the side wall is connected to the periphery of the top wall, the fixing ring is connected to the lower end of the side wall, the accommodating cavity is the space enclosed by the top wall and the side wall; a dial, which It is fixed on the top wall of the bracket, and its disk surface has a scale; a movement, which is arranged in the accommodating cavity of the bracket, has a center needle, and the upper end of the center needle passes through the top wall of the bracket and the center of the dial to the dial; an indicator hand, which is integrated on the center needle and located above the dial, and rotates with the back; An inner diaphragm, which is an elastic metal diaphragm, is used for pressing and deforming to drive the elastic body of the movement, around which is fixed on the fixing ring of the arch frame to cover the accommodating cavity; and an outer pad A sheet, which is a piece of elastic plastic material, an inner surface of which is closely attached to an outer side of the inner diaphragm, and an outer surface opposite to the inner surface is exposed on the bottom surface of the composite diaphragm pressure gauge, There is no other shield on the outside for being directly pressed by a pressure source, so that the outer gasket and the inner diaphragm can be deformed under pressure synchronously.

One of the preferred solutions, in the above-mentioned composite diaphragm pressure gauge, the outer gasket is composed of one of Teflon, silicone rubber, fluororubber (FKM), perfluororubber (FFKM) or nitrile nitrile rubber. , the inner diaphragm and the outer gasket are tightly combined by a coupling agent; the outer surface of the outer gasket is a plane.

In one of the preferred solutions, in the above-mentioned composite diaphragm pressure gauge, the fixing ring of the bracket clamps the edges of the inner diaphragm and the outer gasket.

One of the preferred solutions, the above-mentioned composite diaphragm pressure gauge further includes a connecting seat, a watch case and a transparent watch cover. The connecting seat is a ring body that is sleeved around the fixing ring. The connecting seat It is used to be combined with other objects with the pressure source; the watch case is a shell surrounding the bow frame, and the lower end of the watch case is detachably combined with the ring body; the transparent cover covers the surface of the watch case. the upper end and cover the dial and the indicator hand.

In one of the preferred solutions, in the above-mentioned composite diaphragm pressure gauge, there is a sealing gasket between the connecting seat and the fixing ring.

One of the preferred solutions, in the above-mentioned composite diaphragm pressure gauge, the watch case has an annular gland, and the annular gland presses the edge of the transparent watch cover, and is sleeved and fixed on the outer surface of the upper end of the watch case. side.

One of the preferred solutions, in the above-mentioned composite diaphragm pressure gauge, the movement includes a center seat, a screw seat, a pointer seat, a hairspring and a crossbar; A rear end is assembled in the center of the inner diaphragm through a riveting structure or a screw-lock structure, and a front end of the center seat passes through the center of the inner diaphragm to the accommodating cavity, so that the lower end of the center needle can penetrate into the accommodating cavity. the front end; the screw seat is sleeved on the front end of the center seat and surrounds the center needle; the pointer seat is combined with the proximal upper end of the center needle, the indicator needle is combined with the pointer seat; the hairspring is combined with the bracket of the bracket One end of the accommodating cavity on the inner side of the top wall is connected to the pointer seat; one end of the transverse rod is fixed to the central needle, and the other end is used to be blocked by a baffle.

One of the preferred solutions, in the above-mentioned composite diaphragm pressure gauge, the top wall of the bracket is provided with a baffle plate, the baffle plate extends to the accommodating cavity, and the baffle plate is used for the indicator needle to rotate to zero. block the crossbar.

In order to achieve the above purpose, the present invention proposes a composite diaphragm pressure gauge installation structure, which includes the above-mentioned composite diaphragm pressure gauge and a pressure wall; the inner side of the pressure wall is a pressure zone, and the pressure wall There is an opening, which communicates with the pressure area; the composite diaphragm pressure gauge is combined with the opening, and the outer gasket faces the pressure area inside the pressure wall, so that the pressure source of the pressure area directly presses on the pressure area. the outer gasket.

The composite diaphragm pressure gauge and its installation combined structure of this creation can achieve the following effects:

(1) The composite diaphragm pressure gauge has a structure with no inner cavity on the outer gasket, which can prevent the substances from the pressure source from entering the pressure gauge, and improve the shortcomings of conventional pressure gauges that accumulate residual substances in the inner cavity. It is especially suitable for installation and application in food. on the device.

(2) The composite diaphragm pressure gauge in this creation preferably uses an elastic metal diaphragm, and the outer gasket is made of elastic plastic material. Through this composite structure, the composite diaphragm pressure gauge can measure the pressure value and vacuum. value.

(3) This creation makes the composite diaphragm pressure gauge easy to replace and maintain through the structural design of the connecting seat and the watch case.

10: bow frame

11: Top Wall

12: Sidewall

13: Fixed ring

14: accommodating cavity

15: Groove

16: Baffle

20: Dial

21: Scale

30: Movement

31: center pin

32: Center seat

33: Screw seat

34: Pointer base

35: hairspring

36: Crossbar

40: Indicator needle

50: inner diaphragm

51: Outer side

60: Outer gasket

61: Inside

62: Outside

70: Connector

71: Case

72: Transparent cover

73: Thread locking structure

74: Ring gland

75: Gasket

80: Pressure Wall

81: Opening

82: Pressure Zone

83: Welded structure

[Fig. 1] is a schematic cross-sectional view of a conventional composite diaphragm pressure gauge.

[Fig. 2] is an exploded perspective view of a preferred embodiment of the composite diaphragm pressure gauge created by the present invention.

Fig. 3 is an exploded cross-sectional schematic diagram of a preferred embodiment of the composite diaphragm pressure gauge of the present invention.

[Fig. 4] is a schematic cross-sectional view of the combination of the preferred embodiment of the composite diaphragm pressure gauge.

[Fig. 5] is a schematic diagram of a preferred embodiment of the installation and combination structure of the composite diaphragm pressure gauge.

The structural features and other functions and purposes of the present creation are described in detail as follows according to the embodiments of the accompanying drawings: Referring to FIG. 2 and FIG. 3 , a composite diaphragm pressure gauge of the present creation is described, and its preferred specific embodiments include: A bracket 10, a dial 20, a movement 30, an indicator needle 40, an inner diaphragm 50 and an outer gasket 60, wherein: the bracket 10 is a metal plate stamped and formed into an inner shell with an arcuate section , which is an inner casing with a top wall 11 , a side wall 12 , a fixing ring 13 and an accommodating cavity 14 , the periphery of the top wall 11 is connected to the side wall 12 , and the upper end of the side wall 12 is connected to the top wall Around 11 , the fixing ring 13 is connected to the lower end of the side wall 12 , and the accommodating cavity 14 is the space enclosed by the top wall 11 and the side wall 12 .

The dial 20 is preferably implemented as a circular body, which is fixed on the top wall 11 of the bracket 10 , and the dial surface is implemented with scales 21 according to the specific application equipment. The movement 30 is arranged in the accommodating cavity 14 of the bracket 10, and mainly has a center needle 31. The upper end of the center needle 31 passes through the top wall 11 of the bracket 10 and the center of the dial 20 to the on the dial 20. The indicator hand 40 is combined with the center hand 31 and is located above the dial 20 for Rotate back and forth.

The inner diaphragm 50 is an elastic sheet used for pushing and deforming under pressure to drive the movement 30. It is preferably implemented as an elastic metal diaphragm when used in food equipment. The periphery of the inner diaphragm 50 is fixed on the The fixing ring 13 of the bracket 10 covers the accommodating cavity 14 .

The outer gasket 60 is a sheet body made of elastic plastic material, and its material is selected according to the equipment used in the creation and the substances it is in contact with, such as Teflon, silicone rubber, fluororubber (FKM), perfluororubber ( FFKM) or one of nitrile nitrile rubber, the inner surface 61 of the outer gasket 60 covers the outer side 51 of the inner diaphragm 50, and passes between the inner diaphragm 50 and the outer gasket 60 A coupling agent is tightly combined to form a structure with no cavity or gap between the inner diaphragm 50 and the outer gasket 60; the outer gasket 60 has an outer surface 62 opposite to the inner surface 61 exposed to the composite The bottom surface of the type diaphragm pressure gauge, the outer surface 62 has no conventional base or other shield for being pressed by a pressure source; thereby, the outer gasket 60 is used for being directly pressed by a pressure source, so that the outer The gasket 60 and the inner diaphragm 50 can be deformed (displaced) under pressure synchronously, thereby driving the movement 30 to act.

In this invention, in order to firmly fix the inner diaphragm 50 and the outer gasket 60 so that they can be directly pushed by the pressure source, the above-mentioned fixing ring 13 of the bracket 10 is punched into a structure in which a groove 15 is formed on the inner wall. , whereby the edges of the inner diaphragm 50 and the outer gasket 60 are clamped in the groove 15 , and the fixing ring 13 clamps the edges of the inner diaphragm 50 and the outer gasket 60 by punching.

Referring again to FIG. 3 , the movement 30 is further embodied with a center seat 32 , a screw seat 33 , a pointer seat 34 , a hairspring 35 and a cross bar 36 . A rear end of the center seat 32 is assembled to the center of the inner diaphragm 50 by a riveting structure or a screw-lock structure, and a front end of the center seat 32 passes through the center of the inner diaphragm 50 to the accommodating cavity 14 inside, for the lower end of the center needle 31 to penetrate into the front end. The screw seat 33 is sleeved on the center seat 32 The front end surrounds the central needle 31 and is used to drive the central needle 31 to rotate. The pointer base 34 is combined with the proximal upper end of the center needle 31 , and the above-mentioned pointer 40 is combined with the pointer base 34 . The hairspring 35 is integrated in the accommodating cavity 14 inside the top wall 11 of the bracket 10 , and one end of the hairspring 35 is connected to the pointer seat 34 for driving the pointer 40 to return to zero; and one end of the cross bar 36 is fixed at the center The other end of the needle 31 is intended to be blocked by a stopper 16 . The baffle 16 is stamped and formed on the top wall 11 of the bracket 10 , and the baffle 16 extends into the accommodating cavity 14 , so that the baffle 16 can block the horizontal direction when the indicator needle 40 is rotated to zero. Rod 36, to achieve the effect of accurate zeroing.

Referring to FIG. 4 , the preferred embodiment of the present invention further includes a connecting seat 70 , a watch case 71 and a transparent watch cover 72 . The connecting seat 70 is a ring body fitted around the fixing ring 13 . The seat 70 is used to be combined with other objects with a pressure source; the watch case 71 is a shell surrounding the bow frame 10 , and the lower end of the watch case 71 is detachably connected to the connection seat through a threaded locking structure 73 70; the transparent cover 72 covers the upper end of the case 71 and covers the dial 20 and the indicator needle 40.

Referring to FIG. 4 , the above-mentioned transparent watch cover 72 can be implemented as a structure in which its periphery is directly embedded in the inner wall of the upper end of the watch case 71 , preferably the transparent watch cover 72 is covered on the upper end of the watch case 71 , Then the watch case 71 is further implemented with an annular pressure cover 74 , the annular pressure cover 74 presses the edge of the transparent watch cover 72 , and is fitted or screwed to the outer side surface of the upper end of the watch case 71 .

Referring to FIG. 4 again, in order to achieve the purpose of sealing and leak-proofing, a sealing gasket 75 is provided between the connecting seat 70 and the fixing ring 13 of the bracket 10 to prevent the pressure from the connecting seat 70 and the fixing ring 13 The role of leakage between.

Referring to FIG. 5, the present invention is based on the technology of the above-mentioned composite diaphragm pressure gauge, and further proposes a composite diaphragm pressure gauge installation and combination structure, which can be applied in industries such as food equipment, and its technical features include the above-mentioned composite type Diaphragm pressure gauges and for installation A pressure wall 80; the pressure wall 80 is the lid of the pressure cooker, the groove wall of the pressure cylinder/slot, etc. The pressure wall 80 is provided with an opening 81 matching the above-mentioned connecting seat 70, and the opening 81 communicates with the pressure wall 80 A pressure area 82 on the inner side; thereby, the connecting seat 70 of the composite diaphragm pressure gauge is combined with the opening 81 through a welding structure 83 or a screw locking structure (not shown), and the outer gasket 60 faces the The pressure area 82 inside the pressure wall 80 makes the pressure source of the pressure area 82 directly press the outer gasket 60 and the inner diaphragm 50 .

The main effect achieved by the present invention is: the outer gasket 60 and the inner diaphragm 50 are combined into a structure without inner cavity or gap, which is directly pushed by the pressure source, such as the above-mentioned substances in the pressure zone 82, and will not flow into Therefore, when the pressure of the pressure zone 82 drops or stops, it can avoid the accumulation of substances remaining in the pressure gauge, effectively solving the disadvantage that substances are easily left in the inner cavity of the conventional pressure gauge. Furthermore, in the present invention, the outer gasket 60 is implemented as a sheet body composed of elastic plastic material, and its material is selected according to the installation equipment and the substances in contact, so that the components contacting the pressure source have high temperature resistance, high pressure resistance, chemical resistance, and sealing. Excellent sexual characteristics. In addition, the present invention is a composite structure in which the outer gasket 60 and the inner diaphragm 50 are combined, which can be used to measure the vacuum degree and pressure value in the device.

To sum up, the composite diaphragm pressure gauge and its installation combined structure are indeed practical and creative, and the application of its technical means is undoubtedly novel, and the efficacy and design purpose are indeed consistent, and it has been called reasonable. Progress to the bright. To this end, we have filed an application for a new type of patent in accordance with the law, but we urge the Jun Bureau to give us a detailed review and grant the patent approval.

10: bow frame

11: Top Wall

12: Sidewall

13: Fixed ring

14: accommodating cavity

15: Groove

16: Baffle

20: Dial

30: Movement

31: center pin

32: Center seat

33: Screw seat

34: Pointer base

35: hairspring

36: Crossbar

40: Indicator needle

50: inner diaphragm

51: Outer side

60: Outer gasket

61: Inside

62: Outside

Claims (9)

A composite diaphragm pressure gauge, comprising: a bow frame, which is an inner casing with a top wall, a side wall, a fixing ring and an accommodating cavity, the circumference of the top wall is connected to the side wall, the side wall The upper end of the ring is connected around the top wall, the fixing ring is connected to the lower end of the side wall, the accommodating cavity is the space enclosed by the top wall and the side wall; a dial is fixed on the top wall of the arch, its The dial surface has scales; a movement, which is arranged in the accommodating cavity of the bracket, has a center needle, the upper end of which passes through the top wall of the bracket and the center of the dial to the dial; a An indicator needle, which is combined with the center needle, is located above the dial, and rotates with a conventional cover; an inner diaphragm, which is an elastic metal diaphragm, is used for pressing and deforming to drive the elastic body of the movement, A fixing ring fixed around the bracket to cover the accommodating cavity; and an outer gasket, which is a piece of elastic plastic material, an inner surface of which is closely attached to an outer surface of the inner diaphragm On the contrary, an outer surface of the inner surface is exposed on the bottom surface of the composite diaphragm pressure gauge, and the outer surface has no other shield to be directly pressed by a pressure source, so that the outer gasket and the inner diaphragm can be synchronized Deformation under pressure. The composite diaphragm pressure gauge as claimed in claim 1, wherein the outer gasket is made of one of Teflon, silicone rubber, fluororubber (FKM), perfluororubber (FFKM) or nitrile nitrile rubber, the Pass between the inner diaphragm and the outer gasket A couplant is tightly bonded together; the outer surface of the outer gasket is a flat surface. The composite diaphragm pressure gauge as claimed in claim 2, wherein the fixing ring of the bracket clamps the edges of the inner diaphragm and the outer gasket. The composite diaphragm pressure gauge as claimed in claim 1, 2 or 3, further comprising a connecting seat, a watch case and a transparent watch cover, the connecting seat is a ring body fitted around the fixing ring, and the connecting seat is a ring body fitted around the fixing ring. The seat is used to be combined with other objects with the pressure source; the watch case is a shell surrounding the bow frame, and the lower end of the watch case is detachably combined with the ring body; the transparent watch cover covers the watch case , and covers the dial and the indicator hand. The composite diaphragm pressure gauge according to claim 4, wherein there is a sealing gasket between the connecting seat and the fixing ring. The composite diaphragm pressure gauge according to claim 4, wherein the watch case has an annular gland, the annular gland presses the edge of the transparent watch cover, and is sleeved and fixed on the outer side of the upper end of the watch case. The composite diaphragm pressure gauge according to claim 4, wherein the movement comprises a center seat, a screw seat, a pointer seat, a hairspring and a cross bar; a rear end of the center seat is formed by a riveted structure or The screw lock structure is assembled in the center of the inner diaphragm, and a front end of the center seat passes through the center of the inner diaphragm to the accommodating cavity, so that the lower end of the center needle can penetrate into the front end; the screw seat is sleeved At the front end of the center seat and surrounding the center needle; the pointer seat is combined with the proximal upper end of the center needle, the indicator needle is combined with the pointer seat; the hairspring is combined in the accommodating cavity inside the top wall of the arch , one end of which is connected to the pointer seat; one end of the cross bar is fixed to the center needle, and the other end is used to be blocked by a baffle. The composite diaphragm pressure gauge according to claim 7, wherein the top wall of the bracket is provided with a baffle plate, the baffle plate extends into the accommodating cavity, and the baffle plate is used to block the indicator needle when it rotates to zero. the crossbar. An installation combined structure of a composite diaphragm pressure gauge, which comprises the composite diaphragm pressure gauge described in any one of claims 1 to 8, and a pressure wall; the inner side of the pressure wall is a pressure area, and the pressure The wall has an opening, which communicates with the pressure area; the composite diaphragm pressure gauge is combined with the opening, and the outer gasket faces the pressure area inside the pressure wall, so that the pressure source in the pressure area directly presses on the outer gasket.

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