CN207347108U - Fork truck lifting oil cylinder stop valve - Google Patents
Fork truck lifting oil cylinder stop valve Download PDFInfo
- Publication number
- CN207347108U CN207347108U CN201721236457.8U CN201721236457U CN207347108U CN 207347108 U CN207347108 U CN 207347108U CN 201721236457 U CN201721236457 U CN 201721236457U CN 207347108 U CN207347108 U CN 207347108U
- Authority
- CN
- China
- Prior art keywords
- spool
- oil
- fittings body
- cylinder bottom
- stop valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Forklifts And Lifting Vehicles (AREA)
Abstract
It the utility model is related to fork truck lifting oil cylinder stop valve.Fittings body including forming sealing cooperation with cylinder bottom fuel feed hole, the fittings body is internally provided with oil duct, spring is installed in oil duct, one end of oil duct is equipped with spool, spool, spring and the fittings body is overall structure, and the spool is evenly equipped with along its circumferential direction and multiple offers oil return hole into oil outlet, the end of the spool, the center line of the oil return hole matches with the center line of spool, and the central axis into oil outlet is in the center line of spool.As shown from the above technical solution, the utility model is designed to overall structure by setting single fittings body, and by fittings body and spool, spring, and thread fitting is formed between fittings body and cylinder bottom fuel feed hole, so fuel feed hole only needs simply drilling to complete to process, and reduces the difficulty of processing of cylinder bottom；The stop valve of monoblock type is simple in structure at the same time, and dependable performance, is quick on the draw, and effectively increases the job security of fork truck.
Description
Technical field
It the utility model is related to a kind of fork truck lifting oil cylinder stop valve.
Background technology
Stop valve is the important part of fork truck lifting oil cylinder, is that prevention fork truck the important safety component of security incident occurs,
When occurring sebific duct bursting accident in forklift gantry pipeline system, lift oil tank rapid decrease under uncontrolled state, cuts at this time
Disconnected valve cuts off cylinder bottom fuel feed hole oil circuit in time, and oil cylinder slowly declines, and it is not in security incident to ensure fork truck.Existing fork truck oil cylinder
Stop valve generally uses split structure, i.e. spool and spring is installed on the cylinder interior of lift oil tank, the cylinder body of lift oil tank
Cut-out valve housing is also served as, stop valve boring stepped hole in the fuel feed hole of lift oil tank cylinder bottom, it is necessary in fuel feed hole, adds
Work is difficult.This structural requirement cylinder bottom fuel feed hole machining accuracy is higher, once mismachining tolerance is bigger, it is possible to fails
Problem.
Utility model content
The purpose of this utility model is to provide a kind of fork truck lifting oil cylinder stop valve, the stop valve is simple in structure, performance
Reliably, it is easy for installation and without the boring stepped hole in fuel feed hole.
To achieve the above object, the utility model employs following technical scheme：Sealed including being formed with cylinder bottom fuel feed hole
The fittings body of cooperation, the fittings body are internally provided with oil duct, and spring is provided with oil duct, and one end of oil duct is equipped with spool, institute
Spool, spring and the fittings body stated are overall structure, and the spool is evenly equipped with multiple into oil outlet, the spool along its circumferential direction
End offer oil return hole, the center line of the oil return hole matches with the center line of spool, the center into oil outlet
Center line of the line perpendicular to spool.
The fittings body is integrally in step-like, including first diameter section inside cylinder bottom fuel feed hole and positioned at cylinder bottom
Exterior Second bobbin diameter section, the first diameter section is equipped with the thread segment that thread fitting is formed with cylinder bottom fuel feed hole, described
Sealed between first diameter section and the link position and cylinder bottom of Second bobbin diameter section by O-ring.
The spool is fixed on fittings body by resilient key, the resilient key penetrator body and into oil outlet will
Spool and fittings body are connected.
As shown from the above technical solution, the utility model is by setting single fittings body, and by fittings body and spool, bullet
Spring is designed to overall structure, and thread fitting is formed between fittings body and cylinder bottom fuel feed hole, and such fuel feed hole only needs simply to drill
It can complete to process, reduce the difficulty of processing of cylinder bottom；The stop valve of monoblock type is simple in structure at the same time, dependable performance, reaction spirit
It is quick, effectively increase the job security of fork truck.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings：
A kind of fork truck lifting oil cylinder stop valve as shown in Figure 1, including form connecing for sealing cooperation with 10 fuel feed hole of cylinder bottom
Head body 1, fittings body 1 are internally provided with oil duct, spring 2 are provided with oil duct, and one end of oil duct is equipped with spool 3, that is, spring 2
One end and spool 3 against the other end of spring 2 is resisted against on the stepped hole of oil duct, and spool 3, spring 2 are whole with fittings body 1
Body structure, spool 3 are evenly equipped with multiple into oil outlet along its circumferential direction, and the end of spool 3 offers oil return hole 31, in oil return hole 31
Heart line matches with the center line of spool 3, into oil outlet central axis in the center line of spool 3.
Further, the entirety of fittings body 1 is in step-like, including the first diameter section inside 10 fuel feed hole of cylinder bottom and position
Second bobbin diameter section outside cylinder bottom, first diameter section be equipped with cylinder bottom fuel feed hole formed thread fitting thread segment, first
Sealed between diameter segment and the link position and cylinder bottom of Second bobbin diameter section by O-ring 4.
Further, spool 3 is fixed on fittings body 1 by resilient key 5,5 penetrator body 1 of resilient key and into oil outlet
Spool 3 and fittings body 1 are connected, can so ensure that spool 3 and spring 2 can not be deviate from from fittings body 1.
The operation principle and the course of work of the utility model are as follows：
Stop valve is sealed, fork truck is just by being threadably mounted in the fuel feed hole of oil cylinder bottom on fittings body 1 by O-ring 4
Often during work, hydraulic oil passes through the uniformly distributed work that lift oil tank is passed in and out into oil outlet of the oil duct on fittings body 1 and 3 surrounding of spool
Chamber, in normal operating conditions, the raising of lift oil tank and decline, stop valve do not work fork truck.When in forklift door frame pipeline
High-pressure rubber pipe there is Decrepitation Phenomena, hydraulic oil largely leaks, lift oil tank rapid decrease, reach setting flow when, hydraulic oil
Promote spool 3 to move, closing 3 surrounding of spool into oil outlet, only stay the oil return hole oil return of 3 end of spool, oil cylinder slowly declines,
After dropping to bottom, spool 3 resets under the action of spring 2.
The beneficial effects of the utility model are：（1）Stop valve is monolithic construction, and installation is easy to detect, and response is sensitive,
Reliability is high；（2）The processing request to oil cylinder bottom fuel feed hole is reduced, cylinder bottom fuel feed hole only needs simply drilling.
Embodiment described above is only that the preferred embodiment of the utility model is described, not to this practicality
New scope is defined, and on the premise of the spirit of the design of the utility model is not departed from, those of ordinary skill in the art are to this
The various modifications and improvement that the technical solution of utility model is made, should all fall into the protection that the utility model claims book determines
In the range of.
Claims (3)
- A kind of 1. fork truck lifting oil cylinder stop valve, it is characterised in that：Including with cylinder bottom（10）Fuel feed hole forms connecing for sealing cooperation Head body（1）, the fittings body（1）Be internally provided with oil duct, spring is installed in oil duct（2）, one end of oil duct is equipped with spool （3）, the spool（3）, spring（2）With fittings body（1）For overall structure, the spool（3）It is evenly equipped with along its circumferential direction more It is a into oil outlet, the spool（3）End offer oil return hole（31）, the oil return hole（31）Center line and spool（3） Center line match, the central axis into oil outlet is in spool（3）Center line.
- 2. fork truck lifting oil cylinder stop valve according to claim 1, it is characterised in that：The fittings body（1）It is in integrally It is step-like, including positioned at cylinder bottom（10）First diameter section inside fuel feed hole and the Second bobbin diameter section outside cylinder bottom, it is described First diameter section be equipped with cylinder bottom fuel feed hole formed thread fitting thread segment, the first diameter section and Second bobbin diameter section Link position and cylinder bottom between pass through O-ring（4）Sealing.
- 3. fork truck lifting oil cylinder stop valve according to claim 1, it is characterised in that：The spool（3）Pass through elasticity Pin（5）It is fixed on fittings body（1）On, the resilient key（5）Penetrator body（1）And into oil outlet by spool（3）And connector Body（1）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236457.8U CN207347108U (en) | 2017-09-25 | 2017-09-25 | Fork truck lifting oil cylinder stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721236457.8U CN207347108U (en) | 2017-09-25 | 2017-09-25 | Fork truck lifting oil cylinder stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207347108U true CN207347108U (en) | 2018-05-11 |
Family
ID=62356999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721236457.8U Active CN207347108U (en) | 2017-09-25 | 2017-09-25 | Fork truck lifting oil cylinder stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207347108U (en) |
-
2017
- 2017-09-25 CN CN201721236457.8U patent/CN207347108U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103742473B (en) | Split type pilot load control valve | |
| CN113756994B (en) | Gas inlet regulating valve device of marine dual-fuel low-speed diesel engine | |
| CN105401965A (en) | High-flow safety valve | |
| CN202392124U (en) | Extra-high pressure relief valve | |
| CN207347108U (en) | Fork truck lifting oil cylinder stop valve | |
| CN104806406A (en) | Normally closed electro-mechanical hybrid high-pressure oil pump | |
| CN102797695B (en) | Cyclic protection control system and cyclic protection control method for mechanical seal | |
| CN204677346U (en) | The electromechanical combined formula high pressure oil pump of normal close type | |
| CN105201942A (en) | Balance valve and automobile crane | |
| CN209458221U (en) | A kind of pilot-operated hydraulic lock | |
| CN203686316U (en) | Emergency hydraulic manual operation module for pneumatic and hydraulic linkage actuator | |
| CN115325188A (en) | Double-safety intelligent safety valve | |
| CN109695754B (en) | Hydraulic oil inlet valve | |
| CN207975289U (en) | A kind of two-stage unloading safety valve | |
| CN207814070U (en) | Bidirectional relief valve for protecting motor | |
| CN102921136B (en) | Hydraulic foam control valve | |
| CN204877399U (en) | Oil well nozzle sleeve capable of discharging oil | |
| CN205534430U (en) | Explosion -proof valve of current -limiting | |
| CN207195344U (en) | A kind of hydraulic jack with overflow effect | |
| CN221145425U (en) | High-pressure bottle valve with flow limiting mechanism | |
| CN220850500U (en) | Quick braking device of mining monorail crane | |
| CN2625683Y (en) | double-pipeline safety valve | |
| CN203584956U (en) | Embedded explosion stack safety valve | |
| CN108331795A (en) | The multi-way valve of floating connection gas control mechanism | |
| CN206972645U (en) | A kind of fluid pressure line bidirectional cutting valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |