CN203114758U

CN203114758U - Forklift hydraulic oil tank with breath cushioning structure

Info

Publication number: CN203114758U
Application number: CN 201320093053
Authority: CN
Inventors: 吴天福; 马庆丰; 吴信丽; 葛立银; 姚钢
Original assignee: Anhui Heli Co Ltd
Current assignee: Anhui Heli Co Ltd
Priority date: 2013-03-01
Filing date: 2013-03-01
Publication date: 2013-08-07
Anticipated expiration: 2023-03-01

Abstract

The utility model relates to a forklift hydraulic oil tank with a breath cushioning structure. An oil filling port is formed at the top of the oil tank, an oil filling cover is arranged at the position of the oil filling port, an oil return pipe is arranged at the top of the oil tank, and a breathing port is formed at the top of the oil tank, a breather is arranged at the position of the breathing port through a cushioning pipe, the middle of the cushioning pipe is a middle pipe, the upper portion of the cushioning pipe is an upper connecting pipe, the lower portion of the cushioning pipe is a lower connecting pipe, the diameter of the upper connecting pipe and the diameter of the lower connecting pipe are respectively smaller than the diameter of the middle pipe, the upper portion of the upper connecting pipe is an internal thread pipe which is in thread connection with the breathing port, and the outside of the middle section of the lower connecting pipe is of a square shape. According to the forklift hydraulic oil tank with the breath cushioning structure, the cushioning pipe is additionally arranged, oil gas pressure which is breathed out by the hydraulic oil tank is reduced, and the pressure is fully cushioned and released; the phenomenon that oil liquid overflows from the breather to pollute a forklift body and work environment is avoided; and the service life of the breather is prolonged. The forklift hydraulic oil tank with the breath cushioning structure is simple in structure and low in manufacturing cost.

Description

Has the fork truck hydraulic oil container of breathing buffer structure

Technical field

The utility model belongs to the fork truck technical field, is specifically related to the fork truck hydraulic oil container.

Background technique

Breathing equipment is installed on the fork truck hydraulic oil container usually, and to keep vehicle when working, the inside and outside pressure of hydraulic oil container approaches.Breathing equipment (resuscitation apparatus) is the short tube shape, and inside has filter screen, filters dirt in the ambient air.Resuscitation apparatus is directly installed on above the fuel tank usually, and as shown in Figure 3, the position is relatively low, and after the temperature rise of vehicle operation oil, fuel tank internal gas expands, and pressure raises, and pressurized gas are breathed out from resuscitation apparatus; Install owing to adopt directly, its position is lower, the fuel tank internal high-pressure oil gas directly sprays to resuscitation apparatus, pilot process does not have the pressure buffer release, often cause oil gas to overflow from resuscitation apparatus, with the operating time increase, resuscitation apparatus inner filtration net is soaked into by oil gas, produce one deck oil film, and then stoped fuel tank internal oil gas to be breathed out; Cause the frequent maintain and replace of resuscitation apparatus needs, and overflow many fluid around the fuel tank, befouling environment influences vehicle appearance.

Summary of the invention

For no pressure buffer release in the gas exhalation process that solves the resuscitation apparatus existence on the existing fork truck hydraulic oil container, filter screen is often soaked into by oil gas and forms one deck oil film, the extraneous breathing in the blocking-up, cause hydraulic oil liquid to overflow problems such as befouling environment, the utility model provides a kind of fork truck hydraulic oil container of breathing buffer structure that has that improves structure.

Concrete technological scheme of the present utility model is as follows:

Have the fork truck hydraulic oil container of breathing buffer structure and comprise fuel tank, the top of fuel tank offers oil filler, and the oil filler place is provided with fuel door; The top of fuel tank is provided with return tube, and the upper end of return tube is positioned at outside the fuel tank, and the lower end is positioned at fuel tank, and the lower end of return tube is connecting the oil return filter core; The top of fuel tank also offers pneumostome; Described pneumostome place is provided with resuscitation apparatus by separator tube; The middle part of described separator tube is intervalve, and top is upper connecting tube, and the bottom is lower linking tube, and the caliber of the caliber of upper connecting tube and lower linking tube is respectively less than the caliber of intervalve; The top of described upper connecting tube is riffled tube, and the top of upper connecting tube is threaded with resuscitation apparatus; The outside, stage casing of upper connecting tube is square tube type; The lower end of described lower linking tube is male-pipe, is threaded with pneumostome, and outside, lower linking tube stage casing is square tube type.

The internal diameter size of described upper connecting tube and lower linking tube is A; The internal diameter size of intervalve is B; The axial height of intervalve is of a size of C; Size A 〉=20mm, size B 〉=2Amm, size C are 150 ~ 200mm.

Be provided with the upper head plate of ring and the lower end sheet of ring in the described intervalve, the lower end of described upper connecting tube and the upper end of lower linking tube are stretched in the intervalve respectively, and the lower end of upper connecting tube connects and to connect upper head plate, and the upper end of lower linking tube connects and connecting lower end sheet.

The utility model is compared the advantage with following aspect with prior art products:

1. the utility model reduces the extraneous oil-air pressure of hydraulic oil container exhalation by increasing separator tube, makes pressure fully obtain buffering and discharges; Avoid fluid to overflow from resuscitation apparatus, pollute car body and working environment; Improved the working life of resuscitation apparatus;

2. the utility model is simple in structure, low cost of manufacture.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the separator tube structural representation.

Fig. 3 is the prior art structural representation.

Sequence number among the last figure: 1. fuel tank 2. resuscitation apparatuss 3. fuel door 4. return tubes 5. oil drain plugs 6. oil return filter cores 7. separator tubes 8. upper connecting tubes 9. intervalves 10. upper head plates 11. lower linking tubes 12. lower end sheets.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described by embodiment.

Referring to Fig. 1, have the fork truck hydraulic oil container of breathing buffer structure and comprise fuel tank 1, the top of fuel tank 1 offers oil filler, and the oil filler place is equipped with fuel door 3; The top of fuel tank 1 is equipped with return tube 4, and the upper end of return tube 4 is positioned at outside the fuel tank, and the lower end is positioned at fuel tank, and the lower end of return tube 4 is connecting oil return filter core 6.The bottom of fuel tank 1 is equipped with oil drain plug 5, and the top of fuel tank 1 also offers pneumostome, and the pneumostome place is being communicated with resuscitation apparatus 2 by separator tube 7.Referring to Fig. 2, the middle part of separator tube 7 is intervalve 9, and top is upper connecting tube 8, and the bottom is lower linking tube 11, and the caliber of the caliber of upper connecting tube 8 and lower linking tube 11 is respectively less than the caliber of intervalve 9.The top of upper connecting tube 8 is riffled tube, and the top of upper connecting tube 8 is threaded with resuscitation apparatus 2; The outside, stage casing of upper connecting tube 8 is square tube type, convenient wrench operation during installation; The lower end of lower linking tube 11 is male-pipe, is threaded with pneumostome, and outside, lower linking tube 11 stage casings is square tube type, convenient wrench operation during installation.Be provided with the upper head plate 10 of ring and the lower end sheet 12 of ring in the intervalve 9, the upper end of the lower end of upper connecting tube 8 and lower linking tube 11 is stretched in the intervalve respectively, and the lower end of upper connecting tube 8 connects and is connecting upper head plate 10, and the upper end of lower linking tube 11 connects and connecting lower end sheet 12.

The internal diameter size of upper connecting tube and lower linking tube is A; The internal diameter size of intervalve is B; The axial height of intervalve is of a size of C; Size A 〉=20mm, size B 〉=2Amm, size C are 180mm.

During use, because separator tube 7 mid diameters are greater than lower linking tube 11 and upper connecting tube 9, volume expands after the high-pressure oil gas of fuel tank 1 inside enters intervalve 9 from lower linking tube 11, make high-pressure oil gas pressure reduce, the oil gas high pressure is cushioned, and passes through upper connecting tube 8 with a low-pressure state again, arrives resuscitation apparatus 2 at last, be communicated with fuel tank is extraneous, reach effect of breathing.

Use the utility model to avoid the filter screen of resuscitation apparatus 2 to be soaked into the generation oil film by fluid again, the oil contamination of having avoided environment to be overflowed has reduced the maintenance frequency of resuscitation apparatus.

Claims

1. have the fork truck hydraulic oil container of breathing buffer structure, comprise fuel tank, the top of fuel tank offers oil filler, and the oil filler place is provided with fuel door; The top of fuel tank is provided with return tube, and the upper end of return tube is positioned at outside the fuel tank, and the lower end is positioned at fuel tank, and the lower end of return tube is connecting the oil return filter core; The top of fuel tank also offers pneumostome, it is characterized in that: described pneumostome place is provided with resuscitation apparatus by separator tube; The middle part of described separator tube is intervalve, and top is upper connecting tube, and the bottom is lower linking tube, and the caliber of the caliber of upper connecting tube and lower linking tube is respectively less than the caliber of intervalve; The top of described upper connecting tube is riffled tube, and the top of upper connecting tube is threaded with resuscitation apparatus; The outside, stage casing of upper connecting tube is square tube type; The lower end of described lower linking tube is male-pipe, is threaded with pneumostome, and outside, lower linking tube stage casing is square tube type.

2. according to claim 1 have a fork truck hydraulic oil container of breathing buffer structure, and it is characterized in that: the internal diameter size of described upper connecting tube and lower linking tube is A; The internal diameter size of intervalve is B; The axial height of intervalve is of a size of C; Size A 〉=20mm, size B 〉=2Amm, size C are 150 ~ 200mm.

3. according to claim 1 have a fork truck hydraulic oil container of breathing buffer structure, it is characterized in that: be provided with the upper head plate of ring and the lower end sheet of ring in the described intervalve, the lower end of described upper connecting tube and the upper end of lower linking tube are stretched in the intervalve respectively, and the lower end of upper connecting tube connects and is connecting upper head plate, and the upper end of lower linking tube connects and connecting lower end sheet.