CN217317873U

CN217317873U - Valve seat dismounting tool

Info

Publication number: CN217317873U
Application number: CN202123046792.0U
Authority: CN
Inventors: 赵亮; 孙立成
Original assignee: Fourth Construction Co ltd Of China National Chemical Engineering
Current assignee: Fourth Construction Co ltd Of China National Chemical Engineering
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-08-30
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a disk seat assembly and disassembly tools, a simple structure is provided, disk seat dismantlement labour saving and time saving, convenient and fast's disk seat assembly and disassembly tools, the disk seat dismantlement that exists has been solved and has need transported to the manufacturer, waste time and energy, technical problem such as maintenance and use cost height, it revolves the end including the spanner that each other joins in marriage grafting downthehole in the disk seat of valve body down, the outside end that the end was revolved to the spanner is twisted to the outside extension and is formed the spanner extension rod, violently be fixed with the locating plate on the port of valve body down, the spanner extension rod passes the locating plate and extends to down outside the valve body port, spanner extension rod overcoat between locating plate and disk seat is equipped with and prevents the spanner to revolve wrong mesoporous positioning sleeve who twists the end and deviate from the disk seat.

Description

Valve seat dismounting tool

Technical Field

The utility model relates to a disk seat assembly and disassembly tools especially relates to a simple structure, disk seat dismantlement labour saving and time saving, convenient and fast's a disk seat assembly and disassembly tools.

Background

The automatic control valve used on the domestic air separation cold box pipeline is produced abroad, the valve body is generally made of aluminum-magnesium alloy 5083 materials, the sealing valve seat is mostly made of Monel alloy materials, and the valve seat needs to be replaced in time when the sealing surface of the valve seat is damaged. Because the valve seat is screwed and fixed in the valve body through threads, when the common screwing tool is used for disassembling, the matching end of the screwing tool is very easy to be separated from the matching hole on the valve seat, so that the valve seat cannot be loosened and screwed out, the common screwing tool cannot disassemble the valve seat on site on an installation site, and when the valve seat is replaced, the conventional method is to disassemble and replace the whole valve and then convey the valve to a foreign manufacturer, so that time and labor are wasted, the cost is high, and the daily maintenance and use of a user are not facilitated.

Disclosure of Invention

The utility model mainly provides a simple structure, labour saving and time saving, convenient and fast's disk seat assembly and disassembly tools are dismantled to the disk seat has solved the disk seat dismantlement that exists among the prior art and has need transport to the manufacture factory, wastes time and energy, maintains the technical problem such as with use cost height.

The above technical problem of the present invention can be solved by the following technical solutions: a valve seat dismounting tool comprises a wrench screwing end which is mutually matched and inserted in a valve seat middle hole of a lower valve body, the outer side end of the wrench screwing end extends outwards to form a wrench extension rod, a positioning plate is transversely arranged and fixed on a port of the lower valve body, the wrench extension rod penetrates through the positioning plate and extends out of the port of the lower valve body, and a positioning sleeve which can prevent the wrench screwing end from being separated from the valve seat middle hole is sleeved outside the wrench extension rod between the positioning plate and the valve seat. The wrench screwing end is inserted in the valve seat middle hole of the lower valve body in a matching mode, the outer side end of the wrench screwing end extends to form a wrench extension rod, the wrench extension rod penetrates through the positioning plate on the lower valve body port, the wrench extension rod in the lower valve body port is sleeved with the positioning sleeve, when the valve seat is disassembled, the wrench screwing end is rotated to drive the valve seat to screw out, in the screwing process, once the wrench screwing end moves outwards, the positioning sleeve is abutted to the wrench screwing end to prevent the wrench screwing end from separating from the valve seat outwards, the wrench screwing end is always inserted in the middle hole of the valve seat, the positioning plate and the positioning sleeve can be disassembled after the valve seat is loosened, the valve seat is easily screwed out of the lower valve body, the structure is simple, the manufacturing cost is low, the valve seat is disassembled, time and labor are saved, convenience and rapidness are achieved, and maintenance and use cost is saved.

Preferably, the wrench extension rod is keyed to an outboard end of the wrench screw head. The wrench is screwed and the end key is connected on the wrench extension rod, so that the disassembly and the assembly are convenient.

Preferably, a clearance of 1mm to 3mm is formed between the lower end surface of the positioning sleeve and the corresponding valve seat end surface. The clearance of 1mm to 3mm can not only loosen the valve seat, but also prevent the valve seat and the wrench extension rod from seriously moving.

Preferably, the upper end face of the positioning sleeve is fixed on the positioning plate in a girth welding mode. The positioning sleeve is welded on the positioning plate to keep integral connection, and is convenient to disassemble and assemble.

Preferably, the positioning plate is a strip-shaped plate, and two ends of the positioning plate are respectively fixed on the mounting holes corresponding to the ports of the lower valve body through bolts. The fixing mode of the positioning plate is simple and reliable.

Preferably, the wrench rod is keyed to an outer end of the wrench extension rod. The wrench rod drives the wrench extension rod to rotate, so that time and labor are saved.

Therefore, the utility model discloses a disk seat assembly and disassembly tools has following advantage: in the process of screwing the valve seat out, once the wrench screwing end moves outwards, the positioning sleeve is abutted to the wrench screwing end to prevent the wrench screwing end from being pulled out of the valve seat outwards, so that the wrench screwing end is ensured to be always inserted into a middle hole of the valve seat, the valve seat is smoothly screwed out of the lower valve body, the structure is simple, the manufacturing cost is low, the valve seat is dismounted in a time-saving and labor-saving manner, and the valve seat is convenient and quick to use, and the maintenance and use cost is saved; the welding of position sleeve pipe keeps the integral type to connect on the locating plate, easy dismounting.

Description of the drawings:

fig. 1 is a schematic structural view of the valve seat dismounting tool of the present invention.

The specific implementation mode is as follows:

the technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.

Example (b):

as shown in figure 1, the utility model discloses a valve seat assembling and disassembling tool, including the matching inserted in the valve seat 2 of the lower valve body 1 in the hole of the wrench screwing end 3, the valve seat 2 in the hole and with its matching wrench screwing end 3 matching is regular hexagon, the wrench screwing end 3 outside end keyboard connection wrench extension rod 4 inside end, both matching surface is regular hexagon, in the lower valve body 1 port middle part is fixed with the bar-shaped locating plate 5 horizontally, the locating plate 5 two ends respectively through the bolt 7 fixed in the lower valve body 1 port corresponding mounting hole 11, wrench extension rod 4 outside end through the locating plate 5 after extending to the lower valve body 1 port, for the convenience of application, wrench rod 8 outside end is again the suit in wrench rod 4 outside end, wrench rod 8 horizontal setting, the inside end suit in wrench rod 8 and keep key-type connection, in the wrench rod 5 and valve seat 2 between the locating plate 4 overcoat locating plate 6, the upper end face of the positioning sleeve 6 is fixed on the positioning plate 5 in a girth welding mode, a gap of 1mm is formed between the lower end face of the positioning sleeve 6 and the end face of the corresponding valve seat 2, the diameter of the positioning sleeve 6 is smaller than that of the end face of the corresponding valve seat 2, therefore, in the process of screwing the end 3 with the wrench to screw the valve seat 2 out of the lower valve body 1, the wrench screwing end 3 can be prevented from being separated from the middle hole of the valve seat 2, the positioning plate 5 and the positioning sleeve 6 are removed after the valve seat 2 is loosened, and the valve seat 2 can be easily removed by continuously screwing the valve seat 2.

The specific embodiments described herein are merely illustrative of the principles of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A kind of valve base disassembling tool, characterized by: the end (3) is twisted to downthehole spanner including mutually supporting grafting in disk seat (2) of valve body (1) down, the outside end that the end (3) was twisted to the spanner outwards extends and forms spanner extension rod (4), transversely be equipped with on the port of valve body (1) down and be fixed with locating plate (5), outside spanner extension rod (4) passed locating plate (5) and extend to valve body (1) port down, spanner extension rod (4) overcoat between locating plate (5) and disk seat (2) is equipped with and prevents the spanner and twist positioning sleeve (6) that end (3) deviate from disk seat (2) mesopore are twisted to the spanner.

2. A valve seat removal tool according to claim 1, wherein: the wrench extension rod (4) is connected with the outer side end of the wrench screwing end head (3) in a key mode.

3. A valve seat removal tool according to claim 1, wherein: and a gap of 1mm to 3mm is formed between the lower end surface of the positioning sleeve (6) and the end surface of the corresponding valve seat (2).

4. A valve seat removal tool according to claim 1, wherein: the upper end face of the positioning sleeve (6) is fixed on the positioning plate (5) in a girth welding mode.

5. A valve seat removal tool according to claim 1, wherein: the positioning plate (5) is a strip-shaped plate, and two ends of the positioning plate (5) are fixed on the mounting holes (11) corresponding to the ports of the lower valve body (1) through bolts (7) respectively.

6. A valve seat removal tool according to claim 1, wherein: the outer side end of the wrench extension rod (4) is connected with a wrench rod (8) through a key.