CN203485135U - Valve seat disassembly and assembly tool for needle valve of firefighting truck - Google Patents
Valve seat disassembly and assembly tool for needle valve of firefighting truck Download PDFInfo
- Publication number
- CN203485135U CN203485135U CN201320550395.3U CN201320550395U CN203485135U CN 203485135 U CN203485135 U CN 203485135U CN 201320550395 U CN201320550395 U CN 201320550395U CN 203485135 U CN203485135 U CN 203485135U
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- CN
- China
- Prior art keywords
- valve seat
- needle valve
- needle
- rotating shaft
- valve
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- Expired - Fee Related
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Abstract
A valve seat disassembly and assembly tool for a needle valve of a firefighting truck comprises a rotating shaft, a fixed shaft sleeve, pressure springs, a key block and positioning pins, wherein the fixed shaft sleeve is sleeved on the rotating shaft, and is provided with an outer thread; the pressure springs are sleeved on the rotating shaft; the upper portion of the rotating shaft is provided with a spanner square; the upper portion of the fixed shaft sleeve is provided with a spanner square; the lower portion of the rotating shaft is provided with a key slot; the key block is arranged in the key slot, and can slide up and down in the key slot; one positioning pin is arranged on both sides of the key block respectively, thereby preventing the key block from moving leftwards and rightwards; the pressure springs are positioned between the fixed shaft sleeve and the key block; the valve seat of the needle valve can be rotated by rotating the rotating shaft in order to disassemble the valve seat of the needle valve from the needle valve or assemble the valve seat on the needle valve; the key block can slide up and down in the key slot to be clamped into a transverse groove on the end face of the valve seat of the needle valve conveniently. Thus, the valve seat of the needle valve can be disassembled and assembled conveniently and rapidness. The valve seat disassembly and assembly tool has the advantages of low labor intensity of workers, high working efficiency, good installation quality and remarkable economic benefit.
Description
Technical field:
The utility model is the instrument that oil field fire protection car is repaired use, is a kind of fire fighting truck needle-shaped valve seat dismantling device.
Background technology:
Fire fighting truck is the vehicle of the fire-proof and explosion-proof use in oil field, needle-shaped valve seat on booster pump on fire fighting truck needs frequent dismounting, valve seat is screwed into needle valve assembly inside by screw thread, because special vehicle works under hard conditions, be easy to rust dead, not quick detachable and install, due to the standby specific purpose tool of former car be two ends be a tongue-shaped long tube, it is extend into the inside of needle valve assembly, with the tongue piece of front end, snap in the breach of valve seat, by rotating long tube, drive the loosening of valve seat screw thread or tighten screw thread, valve seat drawn off or be in place.Because valve seat necessarily requires to tighten in needle valve inside, and being front end, specific purpose tool is stuck in valve seat, its part that is exposed at needle valve assembly outside does not have the place of supporting, conventionally need a personal hand to hold the rear end of instrument and must align to inside compression to deviate to prevent instrument, another person blocks the outer end portion of iron pipe with pipe wrench, firmly turning tool loosens valve seat again, therefore, current dismounting valve seat is time-consuming, effort, can not guarantee installation quality, cause sometimes fire fighting truck cisco unity malfunction, affect construction operation, produce heavy economic losses.The valve seat of existing fire fighting truck needle-shaped valve seat dismantling device energy dismounting fire fighting truck needle valve, but its key piece can not slide, and its key piece can not be entered in needle-shaped valve seat end face translot smoothly, cause use inconvenient.
Summary of the invention:
The purpose of this utility model is to provide a kind of fire fighting truck needle-shaped valve seat dismantling device, easily and efficiently dismounting fire fighting truck needle-shaped valve seat.
The purpose of this utility model be achieved in that comprise turning cylinder, fixed hub, the spring of exerting pressure, key piece, shop bolt, fixed hub is sleeved on turning cylinder, on fixed hub, there is external screw thread, the spring housing of exerting pressure is contained on turning cylinder, wrench side is arranged at turning cylinder top, wrench side is arranged at fixed hub top, in turning cylinder bottom, offer keyway, fitting key piece in keyway, key piece can slide up and down in keyway, a shop bolt is respectively installed in the both sides of key piece, and key piece can not be moved left and right, and exerts pressure spring between fixed hub and key piece.
The beneficial effects of the utility model: rotation turning cylinder just can make needle-shaped valve seat rotation, thereby needle-shaped valve seat is disassembled from needle valve, or be arranged on needle valve valve, key piece can slide up and down in keyway, is convenient to stick in needle-shaped valve seat end face translot, therefore, needle-shaped valve seat can be dismantled and install to the utility model easily and efficiently, and labor strength is low, and operating efficiency is high, installation quality is good, has significant economic benefit.
Accompanying drawing explanation:
Accompanying drawing 1 is the installation diagram of the utility model embodiment.
Accompanying drawing 2 is side views of part 1 in accompanying drawing 1.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model embodiment is described.
As seen from the figure, embodiment of the present utility model comprises turning cylinder 1, fixed hub 2, the spring 3 of exerting pressure, key piece 5, shop bolt 8, fixed hub 2 is sleeved on turning cylinder 1, on fixed hub 2, have external screw thread, the spring 3 of exerting pressure is sleeved on turning cylinder 1, and wrench side 6 is arranged at turning cylinder 1 top, be convenient to assembly wrench, wrench side 7 is arranged at fixed hub 2 tops, is convenient to assembly wrench rotation fixed hub 2, and it is connected with the box thread on needle valve valve body easily.In turning cylinder 1 bottom, offer keyway 4, the interior fitting key piece 5 of keyway 4, key piece 5 can slide up and down in 4 li, keyway, a shop bolt 8 is respectively installed in the both sides of key piece 5, shop bolt 8 is outside turning cylinder 1, can make key piece 5 not move left and right, key piece 5 is monosymmetric outside turning cylinder 1, exerts pressure spring 3 between fixed hub 2 and key piece 5.The effect of spring 3 of exerting pressure is that key piece 4 is pressed in needle-shaped valve seat end face translot, during turning cylinder 1 rotation, does not make key piece 4 jump out from needle-shaped valve seat end face translot.
Claims (1)
1. a fire fighting truck needle-shaped valve seat dismantling device, comprise turning cylinder (1), fixed hub (2), the spring (3) of exerting pressure, key piece (5), shop bolt (8), fixed hub (2) is sleeved on turning cylinder (1), fixed hub has external screw thread on (2), the spring (3) of exerting pressure is sleeved on turning cylinder (1), wrench side (6) is arranged at turning cylinder (1) top, wrench side (7) is arranged at fixed hub (2) top, it is characterized in that: in turning cylinder (1) bottom, offer keyway (4), the interior fitting key piece of keyway (4) (5), key piece (5) can slide up and down keyway (4) is inner, a shop bolt (8) is respectively installed in the both sides of key piece (5), key piece (5) can not be moved left and right, exert pressure spring (3) between fixed hub (2) and key piece (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550395.3U CN203485135U (en) | 2013-09-02 | 2013-09-02 | Valve seat disassembly and assembly tool for needle valve of firefighting truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550395.3U CN203485135U (en) | 2013-09-02 | 2013-09-02 | Valve seat disassembly and assembly tool for needle valve of firefighting truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203485135U true CN203485135U (en) | 2014-03-19 |
Family
ID=50255993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550395.3U Expired - Fee Related CN203485135U (en) | 2013-09-02 | 2013-09-02 | Valve seat disassembly and assembly tool for needle valve of firefighting truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203485135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308798A (en) * | 2014-10-29 | 2015-01-28 | 中航成飞民用飞机有限责任公司 | Insert mounting tool |
-
2013
- 2013-09-02 CN CN201320550395.3U patent/CN203485135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308798A (en) * | 2014-10-29 | 2015-01-28 | 中航成飞民用飞机有限责任公司 | Insert mounting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20140902 |
|
| EXPY | Termination of patent right or utility model |