Grinding device for precision machining of safety diaphragm of fire valve

Abstract

The invention discloses a grinding device for precision machining of a safety diaphragm of a fire valve. The grinding device is characterized by comprising a microswitch, a miniature vacuum pump, a type-c self-filling line, a mounting supporting plate, a vacuum cavity plate, an O-shaped sealing ring I, an O-shaped sealing ring II, a sealing sleeve, a handle cover and a diaphragm mounting bottom plate which are sequentially arranged from inside to outside in a sleeving manner and connected with one another; wherein the miniature vacuum pump, the mounting support plate and the vacuum cavity plate are sealed by a sealing sleeve with a nut; the vacuum cavity plate is connected with the film mounting bottom plate through screws, and the film mounting bottom plate is connected with the handle cover through screws; and an O-shaped sealing ring II is arranged between the vacuum cavity plate and the film mounting bottom plate to form a vacuum cavity. The device has the advantages of being easy to operate and convenient to assemble and disassemble, the high-precision planeness and thickness requirements of the safety diaphragm can be met, rapid installation and batch grinding of multiple diaphragms are achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the field of fire-fighting device processing, and relates to a grinding device for high-precision processing of safety diaphragms such as fire-fighting valves and starters, and in particular to a grinding device for precision processing of safety diaphragms of fire-fighting valves. Background Art

[0002] In the production process of fire fighting equipment, it is often encountered that the processing quality of safety diaphragms cannot meet the actual needs. Because the safety diaphragms are relatively thin, the original manual grinding method is difficult to grasp with fingers and is affected by body temperature, which easily leads to excessive grinding accuracy. Therefore, a grinding device is needed to replace manual grinding of thin sheets. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of existing manual grinding and provide a grinding device for precision machining of safety diaphragms of fire valves. The device has a simple and reasonable structure, saves materials, is easy to manufacture, and has the characteristics of simple operation and convenient loading and unloading. It can also quickly install multiple pieces to achieve batch grinding, which can effectively ensure the high-precision flatness and thickness requirements of the safety diaphragm.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A grinding device for precision machining of safety diaphragms of fire valve components, characterized in that the device is composed of a micro switch, a miniature vacuum pump, a type-c self-charging line, a mounting support plate, a vacuum chamber plate, an O-ring I, an O-ring II, a sealing sleeve, a handle cover and a film-mounting base plate, which are set and connected from the inside out; wherein the miniature vacuum pump is connected to the mounting support plate and the vacuum chamber plate with a sealing sleeve with a nut; the vacuum chamber plate and the film-mounting base plate, and the film-mounting base plate and the handle cover are connected respectively with screws; an O-ring II is provided between the vacuum chamber plate and the film-mounting base plate to form a vacuum chamber.

[0005] The lower end surface of the film-loading bottom plate is provided with 10 stepped holes with annular grooves evenly distributed around the circumference, and a small hole is provided on the top to communicate with the vacuum chamber.

[0006] The above-mentioned mounting support plate is provided with a micro vacuum pump, which is connected to the micro switch on the handle cover and the type-c self-charging line through wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is the appearance diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a partial schematic diagram of the present invention; In the figure, 1- micro toggle switch, 2- handle cover, 3- micro vacuum pump, 4- sealing sleeve, 5- cross slot pan head screw, 6- spring washer, 7- flat washer, 8- type-c self-charging line, 9- mounting support plate, 10- vacuum chamber plate, 11- O-shaped gasket I, 12- safety diaphragm, 13- O-shaped gasket II, 14- membrane mounting base plate, 15- cross slot countersunk screw. DETAILED DESCRIPTION

[0008] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Figure 1 , Figure 2 and Figure 3 As shown, a grinding device for precision machining of safety diaphragms of fire valves of the present invention is characterized in that the device is composed of a micro switch 1, a micro vacuum pump 3, a type-c self-charging line 8, a mounting support plate 9, a vacuum chamber plate 10, an O-ring I11, an O-ring II13, a sealing sleeve 4, a handle cover 2 and a film-mounting bottom plate 14, which are assembled and connected from the inside to the outside; wherein the micro vacuum pump 3 and the mounting support plate 9 and the vacuum chamber plate 10 are connected with a sealing sleeve 4 with a nut; the vacuum chamber plate 10 and the film-mounting bottom plate 14, and the film-mounting bottom plate 14 and the handle cover 2 are connected with screws respectively; an O-ring II13 is provided between the vacuum chamber plate 10 and the film-mounting bottom plate 14 to form a vacuum chamber.

[0009] The lower end surface of the film-loading bottom plate 14 is provided with 10 stepped holes with annular grooves evenly distributed around the circumference, and a small hole is provided on the top to communicate with the vacuum chamber.

[0010] The mounting support plate 9 is provided with a micro vacuum pump 3, which is connected to the micro switch 1 on the handle cover 2 and the type-c self-charging line 8 through wires.

[0011] The lower end surface of the film-mounting bottom plate 14 is provided with 10 stepped holes with annular grooves evenly distributed around the circumference, and the annular groove is provided with an O-ring I11, so that the safety diaphragm 12 and the film-mounting bottom plate 14 form a sealed cavity with the vacuum cavity through the small hole. When working, the micro switch 1 is turned on, the micro vacuum pump 3 is started, the gas in the vacuum cavity is discharged, and the safety diaphragm 12 is tightly fitted with the top surface of the stepped hole of the film-mounting bottom plate 14; the 10 stepped holes evenly distributed around the circumference place the safety diaphragm 12 firmly and stably on the grinding plate.

[0012] The film-mounting bottom plate 14 has the following functions: 1) 10 stepped holes with annular grooves are evenly distributed on the circumference of the lower end surface, and the annular grooves are equipped with O-rings I11, so that the safety diaphragm 12 and the film-mounting bottom plate 14 form a sealed cavity with the vacuum cavity through the small holes; 2) when working, the micro switch 1 is turned on, the micro vacuum pump 3 is started, the gas in the vacuum cavity is discharged, and the safety diaphragm 12 is tightly fitted with the top surface of the stepped hole of the film-mounting bottom plate 14; the 10 stepped holes evenly distributed on the circumference place the safety diaphragm 12 firmly and stably on the grinding plate.

[0013] The vacuum chamber plate 10 is used to form a vacuum chamber by being pressed together with the film mounting bottom plate 14 through an O-ring II13 and screws.

[0014] The handle cover 2 has the following functions: the handle cover 2 has a spherical shape, conforms to ergonomics, is easy to grip, and is beneficial to grinding operations.

[0015] The functions of the micro vacuum pump 3 are: 1) when opened in the forward direction, the gas in the vacuum chamber is discharged, and the safety diaphragm 12 is firmly attached to the top surface of the step hole of the film-mounting bottom plate 14; 2) when opened in the reverse direction, the gas in the vacuum chamber enters, slowly inflates, and the safety diaphragm 12 slowly separates from the film-mounting bottom plate 14.

Claims

1. A grinding device for precision machining of safety diaphragms of fire valves, characterized in that The device comprises, from the inside out, a micro switch (1), a micro vacuum pump (3), a type-c self-charging line (8), a mounting support plate (9), a vacuum chamber plate (10), an O-ring I (11), an O-ring II (13), a sealing sleeve (4), a handle cover (2) and a film-mounting bottom plate (14), which are assembled and connected; wherein the micro vacuum pump (3) is connected to the mounting support plate (9) and the vacuum chamber plate (10) by a sealing sleeve (4) with a nut; the vacuum chamber plate (10) is connected to the film-mounting bottom plate (14), and the film-mounting bottom plate (14) is connected to the handle cover (2) by screws; an O-ring II (13) is provided between the vacuum chamber plate (10) and the film-mounting bottom plate (14) to form a vacuum chamber.

2. A grinding device for precision machining of safety diaphragms of fire valves according to claim 1, characterized in that: The lower end surface of the film-loading bottom plate (14) is provided with 10 stepped holes with annular grooves evenly distributed on the circumference, and a small hole is provided on the top to communicate with the vacuum chamber.

3. A grinding device for precision machining of safety diaphragms of fire valves according to claim 1, characterized in that: The mounting support plate (9) is provided with a micro vacuum pump (3), which is connected to the micro switch (1) on the handle cover (2) and the Type-C self-charging line (8) via a wire.

Images