CN217463416U

CN217463416U - Valve booster with integrative casing of moulding plastics

Info

Publication number: CN217463416U
Application number: CN202220226159.5U
Authority: CN
Inventors: 孙志强; 童津金; 孙杰
Original assignee: Ningbo Hengyuan Precision Valves Technology Co ltd
Current assignee: Ningbo Hengyuan Precision Valves Technology Co ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-09-20
Anticipated expiration: 2032-01-27

Abstract

The application discloses valve booster with integrative casing of moulding plastics, including drive assembly and housing assembly, housing assembly is including the casing of the metal material that is used for installing drive assembly and the outside integrated into one piece's of casing shell including moulding plastics. In this application, adopt corrosion-resistant raw and other materials to mould plastics in the outside of casing, generate integrated into one piece's shell body, in view of injection moulding process's technology characteristics and high temperature characteristic, set up the high temperature resistant and interior casing that can support drive assembly of one deck in the inside of shell body. In practice, the metal selected as the inner shell can not only bear the high temperature in the injection molding process, but also play a role in supporting the transmission assembly arranged in the inner shell. Because the outer shell is the integral type, do not have the seam for whole casing assembly leakproofness is better.

Description

Valve booster with integrative casing of moulding plastics

Technical Field

The utility model relates to a technical field, in particular to valve booster is opened and close.

Background

The valve is a control part in a pipeline fluid conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, cutoff, throttling, non-return, diversion, overflow, pressure relief and the like. For a valve which is relatively large and heavy or has limited space around the installation position, a booster is generally adopted to assist manual operation to realize opening and closing of the valve. At present, the valve booster on the market is generally split type shell structure for simple to operate for the drive device who plays the helping hand effect installs inside the casing, has the seam on the casing. Under long-term adverse circumstances, there is liquid or gaseous invasion often at the seam crossing of split type casing for the drive device oxidation in the casing rusts, can not reach better helping hand effect when carrying out opening and close of valve.

Disclosure of Invention

The utility model aims at providing a better valve booster of seal structure to having the seam to lead to the not enough defect of leakproofness in the middle of the split type valve booster of current.

In order to achieve the above object, the utility model adopts the following technical scheme: a valve booster with an integrated injection molding shell comprises a transmission component and a shell component, wherein the shell component comprises an inner shell made of metal and used for mounting the transmission component, and an integrally formed outer shell which is formed outside the inner shell in an injection molding mode. Set up valve booster's shell body into integrated into one piece's injection molding in this application, overcome current split type casing and have the leakproofness problem that the seam leads to

Preferably, the outer shell is an injection molding made of PE.

Preferably, the transmission assembly comprises a first rotating shaft, a first connecting shaft and a gear assembly which drives the first connecting shaft to rotate synchronously along with the rotation of the first rotating shaft; the upper end of the first rotating shaft extends out of the shell assembly; the lower end of the first connecting shaft extends out of the shell assembly.

Preferably, the device further comprises an indicating device, the indicating device comprises a pointer and a mounting seat for mounting the pointer, the mounting seat is connected with the upper end of the first connecting shaft, and the pointer and the first connecting shaft rotate synchronously.

Preferably, the part of the first rotating shaft extending out of the shell assembly is sleeved with a rotating cap, and the rotating cap and the first rotating shaft rotate synchronously.

Preferably, the gear assembly includes a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a first gear disposed on the first rotating shaft, a second gear disposed on the second rotating shaft, a third gear and a fourth gear disposed on the third rotating shaft, a fifth gear and a sixth gear disposed on the fourth rotating shaft, and a seventh gear disposed on the first connecting shaft; the first gear is meshed with the second gear, the second gear is meshed with the third gear, the fourth gear is meshed with the fifth gear, and the sixth gear is meshed with the seventh gear.

Preferably, the inner housing includes an upper housing and a lower housing, and the transmission assembly is mounted between the upper housing and the lower housing.

Preferably, the lower shell is reserved with a liquid injection hole and a vacuum pumping hole.

By adopting the technical scheme, the beneficial effects of the utility model are that: this application adopts corrosion-resistant raw and other materials to mould plastics in the outside of casing, generates integrated into one piece's shell body, in view of injection moulding process's technology characteristics and high temperature characteristic, has set up the high temperature resistant and interior casing that can support drive assembly of one deck in the inside of shell body. In practice, the metal selected as the inner shell can not only bear the high temperature in the injection molding process, but also play a role in supporting the transmission assembly arranged in the inner shell. Because the outer shell is the integral type, do not have the seam for whole casing assembly leakproofness is better.

Drawings

FIG. 1 is a top view of the valve booster of the present invention;

FIG. 2 is a sectional expanded view of the valve booster of FIG. 1 taken along plane A _ A';

in the figure: 110-1-upper housing, 110-2-lower housing, 120-outer housing, 210-pointer, 220-mounting base, 310-first rotating shaft, 311-rotating cap, 321-first gear, 322-second gear, 323-third gear, 324-fourth gear, 325-fifth gear, 326-sixth gear, 327-seventh gear, 330-first connecting shaft.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

A driving tool controls the opening and closing of a valve through the valve booster. The valve booster comprises an indicating device of valve opening, a transmission assembly and a shell assembly.

As shown in fig. 1 and 2, the housing assembly includes an inner housing and an outer housing 120. The inner shell is made of high-temperature-resistant metal and used for mounting the transmission assembly. The outer shell 120 is formed by injecting a corrosion-resistant material into the outer portion of the inner shell, and wraps the inner shell, and the outer shell can be made of PE injection molding materials. The inner housing includes an upper housing 110-1 and a lower housing 110-2, the upper housing 110-1 and the lower housing 110-2 are coupled, and the transmission assembly is installed between the upper housing 110-1 and the lower housing 110-2. The lower shell 110-2 is reserved with a liquid injection hole and a vacuum pumping hole.

The transmission assembly includes a first rotating shaft 310, a first connecting shaft 330, and a gear assembly that drives the first connecting shaft 330 to rotate synchronously with the rotation of the first rotating shaft 310. The upper end of the first rotating shaft 310 extends out of the housing assembly to be connected with a driving tool. The upper end of the first connecting shaft 330 extends out of the shell assembly to be connected with the indicating device, and the lower end of the first connecting shaft 330 extends out of the shell assembly to be connected with the valve rod of the driven valve. The portion of the first rotating shaft 310 protruding out of the housing assembly is further provided with a rotating cap 311, and the rotating cap 311 rotates in synchronization with the first rotating shaft 310.

The torque is applied to the rotating cap 311 (i.e., the first rotating shaft 310) by a driving tool, the first rotating shaft 310 amplifies and transmits the torque to the first connecting shaft 330 through the gear assembly, and the first connecting shaft 330 rotates along with the rotation of the first rotating shaft 310, and simultaneously drives the valve rod to open the valve, thereby achieving the purpose of assisting power. The pointer 210 of the indicating means also indicates the opening degree of the valve following the rotation of the first connecting shaft 330.

The gear assembly includes a second rotation shaft, a third rotation shaft, a fourth rotation shaft, a first gear 321 disposed on the first rotation shaft 310, a second gear 322 disposed on the second rotation shaft, a third gear 323 and a fourth gear 324 disposed on the third rotation shaft, a fifth gear 325 and a sixth gear 326 disposed on the fourth rotation shaft, and a seventh gear 327 disposed on the first connection shaft 330, wherein the first gear 321 is engaged with the second gear 322, the second gear 322 is engaged with the third gear 323, the fourth gear 324 is engaged with the fifth gear 325, and the sixth gear 326 is engaged with the seventh gear 327.

The indicating device comprises a pointer 210 and a mounting seat 220 for mounting the pointer 210, the mounting seat 220 is connected with a part of the first connecting shaft 330 extending out of the shell assembly, and the pointer 210 rotates synchronously with the first connecting shaft 330. When the first connecting shaft 330 rotates the valve stem, the pointer 210 synchronously indicates the opening degree of the valve.

The utility model discloses still be applicable to other needs and rotate the equipment of opening or rotating the closing, only need with the utility model discloses install on corresponding position, and will the first connecting axle 330 of the utility model can use with the dwang fixed connection that needs to rotate to open or close the utility model discloses a simple structure, convenient operation, easy operation, convenient operation, the utility model discloses a simple structure, convenient operation is convenient.

Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.

Claims

1. The valve booster is characterized by comprising a transmission assembly and a shell assembly, wherein the shell assembly comprises an inner shell made of metal and used for mounting the transmission assembly and an integrally formed outer shell which is formed outside the inner shell in an injection molding mode.

2. A valve booster as set forth in claim 1 wherein said outer housing is an injection molded part of PE.

3. A valve booster as set forth in claim 1 wherein said transmission assembly includes a first rotatable shaft, a first connecting shaft, and a gear assembly for driving the first connecting shaft to rotate synchronously with rotation of the first rotatable shaft; the upper end of the first rotating shaft extends out of the shell assembly; the lower end of the first connecting shaft extends out of the shell assembly.

4. A valve booster as set forth in claim 3 further comprising an indicating device including a pointer and a mounting seat for mounting the pointer, the mounting seat being connected to the upper end of the first connecting shaft, the pointer being rotated in synchronism with the first connecting shaft.

5. A valve booster as set forth in claim 3 wherein the portion of the first rotatable shaft extending out of the housing assembly is sleeved with a rotatable cap that rotates in unison with the first rotatable shaft.

6. A valve booster as set forth in claim 3 wherein the gear assembly includes a second rotary shaft, a third rotary shaft, a fourth rotary shaft, a first gear disposed on the first rotary shaft, a second gear disposed on the second rotary shaft, third and fourth gears disposed on the third rotary shaft, fifth and sixth gears disposed on the fourth rotary shaft, and a seventh gear disposed on the first connecting shaft; the first gear is meshed with the second gear, the second gear is meshed with the third gear, the fourth gear is meshed with the fifth gear, and the sixth gear is meshed with the seventh gear.

7. A valve booster as set forth in claim 1 wherein said inner housing includes an upper housing and a lower housing, said transmission assembly being mounted between the upper housing and the lower housing.

8. The valve booster of claim 7 wherein the lower housing is reserved with a liquid injection hole and a vacuum hole.