CN216681994U

CN216681994U - Clamp for mounting diaphragm

Info

Publication number: CN216681994U
Application number: CN202121642521.9U
Authority: CN
Inventors: 徐力; 常中东; 沈凯桦
Original assignee: Shanghai Zhichun Precision Manufacturing Co ltd
Current assignee: Shanghai Zhichun Precision Manufacturing Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-06-07
Anticipated expiration: 2031-07-19

Abstract

The utility model provides a diaphragm mounting fixture which comprises a positioning support, wherein the positioning support comprises a positioning ring with an annular structure, a plurality of groups of positioning assemblies are mounted on the positioning ring, a pressing block (1) is coaxially mounted on the inner wall of the positioning ring (302) in a matched mode, a compression port (3021) is additionally arranged on the bottom surface of the positioning ring (302), the compression port (3021) and the inner wall of the positioning ring (302) are arranged in a tangent mode, and the compression port (3021) is of a horn-shaped structure. The utility model can ensure that the diaphragm is quickly and accurately installed in the installation groove and is not easy to damage.

Description

Clamp for mounting diaphragm

Technical Field

The utility model relates to the technical field of diaphragm installation, in particular to a fixture for diaphragm installation.

Background

The diaphragm valve is used for sealed part to be the diaphragm, and the diaphragm is in order to guarantee the leakproofness, and the cam external diameter of diaphragm will generally be greater than the recess external diameter, takes the diaphragm cam to get into the mounting groove difficulty, takes place to warp easily and causes the diaphragm to damage, consequently needs a anchor clamps for the diaphragm installation, can make the quick accurate installation of diaphragm in the mounting groove, and not fragile diaphragm.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a diaphragm mounting jig, which can mount a diaphragm into a mounting groove quickly and accurately, and is not prone to damage the diaphragm.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the fixture for mounting the diaphragm comprises a positioning support, wherein the positioning support comprises a positioning ring with an annular structure, and a plurality of groups of positioning assemblies are mounted on the positioning ring.

Furthermore, a compression opening is additionally formed in the bottom surface of the positioning ring.

Furthermore, the compression opening is tangent to the inner wall of the positioning ring.

Further, the compression opening is of a horn-shaped structure.

Furthermore, the bottom end of the compression opening extends out of the bottom surface of the positioning ring.

Furthermore, the whole positioning ring is made of a material which is not easy to deform.

Further, the positioning assembly comprises a positioning pin and a gasket.

Furthermore, a pressing block is coaxially installed on the inner wall of the positioning ring in a matched mode.

Furthermore, the outer diameter of the pressing block is equal to the inner diameter of the positioning ring.

Furthermore, a preformed groove is formed in the bottom surface of the pressing block.

The utility model has the advantages and positive effects that:

through fixing the holding ring at the top surface of valve body mounting groove, make holding ring and mounting groove place with the axle center, the compression mouth is still installed to the holding ring bottom surface, and after the diaphragm passed the holding ring, the axle center of diaphragm and mounting groove was on same straight line, and the diaphragm entered into the compression mouth, and the compression mouth evenly exerts the power of compression to the next door of diaphragm, reduces the radius of diaphragm, not fragile diaphragm, can be fast accurate install the mounting groove with the diaphragm in.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an overall view of a positioning holder in a diaphragm mounting jig according to the present invention;

FIG. 2 is an exploded view of a diaphragm mounting fixture of the present invention;

fig. 3 is an exploded view of the diaphragm mounting jig, diaphragm and valve body according to the present invention.

In the figure: 1. briquetting; 101. reserving a groove; 2. a diaphragm sheet; 3. positioning the bracket; 301. a positioning assembly; 3011. positioning pins; 3012. a gasket; 302. a positioning ring; 3021. compressing the opening; 4. a valve body.

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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a diaphragm mounting fixture, which comprises a positioning support 3, wherein the positioning support 3 comprises a positioning ring 302, the positioning ring 302 is used for enabling a diaphragm 2 and the axis of a mounting groove to be in the same straight line, a plurality of groups of positioning assemblies 301 are mounted on the positioning ring 302, and the positioning assemblies 301 are used for fixing and positioning the positioning ring 302 and enabling the positioning ring 302 and the mounting groove for mounting the diaphragm 2 to be placed coaxially. Preferably, the positioning assembly 301 of the positioning ring 302 comprises a positioning pin 3011 and a spacer 3012, and the positioning pin 3011 and the spacer 3012 are standard assemblies, which is convenient for production and installation. When the diaphragm 2 is used, the diaphragm 2 is placed into the fixed positioning ring 302, and the angle and the position of the diaphragm 2 relative to the installation groove are adjusted in the process that the diaphragm 2 penetrates through the positioning ring 302.

The bottom surface of the positioning ring 302 is additionally provided with a compression port 3021, the compression port 3021 and the positioning ring 302 are integrally formed, and the compression port 3021 is used for compressing the diaphragm 2 because the diaphragm 2 needs to be in interference fit with the mounting groove. The inner wall of the compression port 3021 uniformly presses the side wall of the diaphragm 2, the radius of the diaphragm 2 is reduced, and the diaphragm 2 is pushed into the mounting groove.

After diaphragm 2 packed into the mounting groove, 2 reconversion of diaphragm, and then the chucking is in the mounting groove, accomplishes diaphragm 2's interference fit. The setting of holding ring 302 bottom surface is stretched out to compression mouth 3021, and behind the installation holding ring 302, compression mouth 3021 can stretch into the mounting groove in, when avoiding installing an individual die, the top surface production collision of diaphragm 2 and mounting groove leads to diaphragm 2 and mounting groove to appear damaging.

The compression port 3021 is of a horn-shaped structure, and the minimum inner diameter of the horn-shaped structure is smaller than the inner diameter of the positioning ring 302, so that the diaphragm 2 is extruded in an all-around manner, the radius of the diaphragm 2 is reduced, and the diaphragm 2 is convenient to mount. And the inner wall of the compression port 3021 is tangent to the inner wall of the positioning ring 302, so that the diaphragm 2 stably moves from the positioning ring 302 to the compression port 3021, the radius of the inner wall of the horn-shaped structure is linearly changed, the force of the diaphragm 2 compressed in the compression port 3021 is linearly increased, and the diaphragm 2 is effectively prevented from being damaged in the compression process.

The positioning ring 302 and the compression port 3021 are integrally made of non-deformable materials, so that the positioning ring 302 and the compression port 3021 are prevented from deforming when the diaphragm 2 is moved and extruded, the angle and the position of the diaphragm 2 relative to the mounting groove are influenced, and the mounting effect of the diaphragm 2 is further influenced.

As shown in fig. 2, a pressing block 1 is coaxially installed on the inner wall of the positioning bracket 3 in a matching manner, the pressing block 1 is used for adjusting the axial centers of the diaphragm 2 and the positioning ring 302, and pressing the diaphragm 2 to push the diaphragm 2 into the compression port 3021 coaxially. Preferably, the radius length of the pressing block 1 and the inner radial direction of the positioning ring 302 are arranged at the same position, if the force applied to the top surface of the pressing block 1 is not stable, the pressing block 1 cannot move in the positioning ring 302, so that the pressing block 1 can only move along the axial direction of the positioning ring 302, and the diaphragm 2 can be conveniently and stably pushed. Preformed groove 101 has been seted up to 1 bottom surface of briquetting, avoids other positions contacts of briquetting 1 and diaphragm 2, leads to at the in-process of installation diaphragm 2, extrudees or damages the deformation position at 2 centers of diaphragm, and then influences diaphragm 2's performance.

The working principle and the working process of the utility model are as follows:

taking the process of installing diaphragm 2 on the valve body of the diaphragm valve as an example, as shown in fig. 3, the top surface of the valve body is provided with an installation groove for installing diaphragm 2, and the side surface of the valve is provided with a connection hole, and the positioning assembly 301 is used to fixedly install the positioning ring 302 on the top surface of the installation groove coaxially, and meanwhile, the gasket 3012 makes a gap exist between the positioning ring 302 and the top surface of the installation groove, and the gap is used for conveniently placing the compression port 3021, so that the compression port 3021 on the bottom surface of the positioning ring 302 partially extends into the installation groove, and the installation of the positioning frame is completed.

Put into the holding ring 302 with diaphragm 2 steady as far as possible, adjust the angle of diaphragm 2 with briquetting 1, make diaphragm 2 and holding ring 302 with the axle center put the back, steady pressure moves diaphragm 2, press it in compression mouth 3021, compression mouth 3021 is even to the 2 lateral walls of diaphragm applys compressive force, reduce the diameter of diaphragm 2, and the compressive force that applys toward 2 lateral walls of diaphragm is linear to be increased, avoid damaging diaphragm 2, because compression mouth 3021 part stretches into in the mounting groove, make in the steady entering into mounting groove of diaphragm 2 and not produce the collision with the mounting groove lateral wall.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The fixture for mounting the diaphragm is characterized by comprising a positioning support (3), wherein the positioning support (3) comprises a positioning ring (302) with an annular structure, a plurality of groups of positioning assemblies (301) are mounted on the positioning ring (302), and a pressing block (1) is coaxially mounted on the inner wall of the positioning ring (302) in a matched manner;

set up holding ring (302) bottom surface has compression mouth (3021), compression mouth (3021) and the tangent setting of holding ring (302) inner wall, compression mouth (3021) are the horn structure.

2. A diaphragm mounting jig according to claim 1 wherein the bottom end of the compression port (3021) extends beyond the bottom surface of the retaining ring (302).

3. A diaphragm mounting jig according to claim 1 wherein the retaining ring (302) is formed entirely of a non-deformable material.

4. A diaphragm mounting clamp according to claim 1, wherein the positioning assembly (301) comprises a positioning pin (3011) and a spacer (3012).

5. A diaphragm mounting fixture according to claim 1, wherein the outer diameter of the pressure block (1) is equal to the inner diameter of the positioning ring (302).

6. The diaphragm mounting jig of claim 1, wherein the pressing block (1) is provided with a pre-groove (101) on the bottom surface thereof.