CN203477457U - Abutting structure of one-lever-controlled valve element rod - Google Patents
Abutting structure of one-lever-controlled valve element rod Download PDFInfo
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- CN203477457U CN203477457U CN201320473266.9U CN201320473266U CN203477457U CN 203477457 U CN203477457 U CN 203477457U CN 201320473266 U CN201320473266 U CN 201320473266U CN 203477457 U CN203477457 U CN 203477457U
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Abstract
The utility model provides an abutting structure of a one-lever-controlled valve element rod, and belongs to the technical field of agricultural machines and equipment. The structure solves the problems that an existing one-lever-controlled valve spring collides with the wall of a valve body when swinging, and an abnormal sound is made. The abutting structure comprises a cylindrical installation cavity arranged in the valve body, wherein a safety valve base is disposed in the cylindrical installation cavity, an oil outlet is formed in the end face of the upper end of the safety valve base and communicated with an oil outlet channel, an oil passing opening is formed in the side wall of the safety valve base and communicated with an overflow channel, a valve rod penetrates through the safety valve base, the conical head portion of the valve rod abuts against the wall of the oil outlet through a spring, and the top end of the conical head portion extends into the oil outlet. The abutting structure of the one-lever-controlled valve element rod is simple in structure, and has the advantage that when the one-lever-controlled valve element rod starts to work, the valve rod and the spring do not generate the abnormal sound on the wall of the valve body whether the one-lever-controlled valve element rod is used in a high-pressure state or a low-pressure state.
Description
Technical field
The utility model belongs to agricultural machinery equipment technical field, relate to an a kind of lever operation valve core rod against structure.
Background technique
Grain combine is called for short combine-harvester, gathers in exactly the combination machine of crops, is harvesting, threshing, the separated cane that can once complete cereal crops, removes the operations such as assorted excess, directly obtains the harvest machinery of grain from field.
Before combine-harvester does not occur; threshing machine and these apparatuses of mechanical harvesting machine; agricultural productivity while greatly improving for 19th century; this makes to use and than few in the past workman, removes to gather in more cereal and become possibility, but an invention of 19 th century later has further improved this efficiency; combine-harvester is combined in one whole harvesting and threshing machine; make peasant go harvesting and threshing with single operation, thereby saved manpower and materials, greatly alleviated peasant's burden.
Combine-harvester is that in farm machinery, structure is the most complicated, scientific and technological content is higher, and manufacturing technology level requires very tight product.In combine-harvester, generally all by a bar driven valve, control the cutting of combine-harvester, threshing, separated, the running of the operation mechanisms such as unloading, in an existing bar driven valve safe pressure relief device, generally comprise on a bar driven valve valve body and offer pressure release passage, on pressure release passage, be provided with split type spool one and spool two, described spool one abuts against the oil outlet place of pressure release passage, spool two is positioned on the spring seat of valve interior wall, between valve body one and valve body two, be provided with the spring that energy spool one abuts against the oil outlet place of above-mentioned pressure release passage under certain pressure.In above-mentioned structure, when a lever operation valve is started working, working oil path oils and presses liter, spool one when oil pressure rises to certain force value in safe pressure relief device is backed down by oil pressure, the impact force of the fluid in an instant that spool one is backed down is very large, and fluid flowing instability must cause the spring in safe pressure relief device to produce and swing in inside, when this spring swings, can collide with valve body wall, produce abnormal sound.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed an a kind of no matter lever operation valve under high pressure or low-pressure state are used, can not produce abnormal sound a lever operation valve core rod against structure.
The purpose of this utility model can realize by following technical proposal: an a kind of lever operation valve core rod against structure, this lever operation valve comprises valve body, on valve body, offer oil inlet passage, oil discharge passage and overflow ducts, described oil inlet passage, between oil discharge passage, be provided with the valve rod that makes above-mentioned oil inlet passage and oil discharge passage be communicated with or block, described overflow ducts and above-mentioned oil discharge passage are connected, in valve body between overflow ducts and oil discharge passage, be provided with core bar, it is characterized in that, this is included in and in valve body, offers cylindric installation cavity against structure, one emergency valve seat is set in cylindric installation cavity, on the end face of the upper top of emergency valve seat, offer the oil outlet being connected with above-mentioned oil discharge passage, on the sidewall of emergency valve seat, offer the logical hydraulic fluid port being connected with overflow ducts, above-mentioned core bar is located in above-mentioned emergency valve seat and the coniform head of this core bar is pushed against on above-mentioned oil outlet mouth wall by spring, the top of this coniform head puts in above-mentioned oil outlet.
An above-mentioned a kind of lever operation valve core rod in structure, described core bar also comprises the locating column being installed on above-mentioned coniform head, in above-mentioned emergency valve seat, be excessively equipped with guide sleeve, the locating column of described core bar be located in above-mentioned guide sleeve and this above-mentioned coniform head abuts on the inner end face of above-mentioned guide sleeve.
An above-mentioned a kind of lever operation valve core rod in structure, on valve body, be fixed with the pressure regulation valve gap that abuts against above-mentioned emergency valve seat, in pressure regulation valve gap, be provided with above-mentioned guide sleeve over against spring seat, between described spring seat and guide sleeve, be provided with above-mentioned spring, one end of this spring puts in above-mentioned emergency valve seat and abuts against above-mentioned guide sleeve, and the other end of this spring abuts against above-mentioned spring seat.
An above-mentioned a kind of lever operation valve core rod in structure, between described pressure regulation valve gap and above-mentioned emergency valve seat, be provided with packing ring.
An above-mentioned a kind of lever operation valve core rod in structure, between described emergency valve seat and cylindric installation cavity wall, be also provided with O shape rubber seal.
An above-mentioned a kind of lever operation valve core rod in structure, described pressure regulator valve covers and is connected with screw rod, described screw rod one end above-mentioned spring seat of conflicting, the other end of this screw rod offers interior hexagonal screw.
Compared with prior art, originally a lever operation valve core rod mainly offers cylindric installation cavity against structure in valve body, one emergency valve seat is set in cylindric installation cavity, on the end face of the upper top of emergency valve seat, offer the oil outlet being connected with above-mentioned oil discharge passage, on the sidewall of emergency valve seat, offer the logical hydraulic fluid port being connected with overflow ducts, core bar is located in above-mentioned emergency valve seat and the coniform head of this core bar is pushed against on above-mentioned oil outlet mouth wall by spring, and the top of this coniform head puts in above-mentioned oil outlet; The utility model is simple in structure, has solved when a lever operation valve is started working, no matter use under high pressure or low-pressure state, core bar and spring can not produce with valve body wall the feature of abnormal sound.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram against structure of this lever operation valve core rod.
In figure, 1, valve body; 2, oil inlet passage; 3, oil discharge passage; 4, overflow ducts; 5, valve rod; 6, core bar; 6a, coniform head; 6b, locating column; 7, emergency valve seat; 7a, oil outlet; 7b, logical hydraulic fluid port; 8, spring; 9, guide sleeve; 10, pressure regulation valve gap; 11, spring seat; 12, packing ring; 13, O shape rubber seal; 14, screw rod; 15, interior hexagonal screw.
Embodiment
Be below specific embodiment of the utility model by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, this lever operation valve is mainly comprised of valve body 1, on valve body 1, offer oil inlet passage 2, oil discharge passage 3 and overflow ducts 4, oil inlet passage 2, between oil discharge passage 3, be provided with the valve rod 5 that makes above-mentioned oil inlet passage 2 and oil discharge passage 3 be communicated with or block, overflow ducts 4 and oil discharge passage 3 are connected, in valve body 1 between overflow ducts 4 and oil discharge passage 3, be provided with core bar 6, this is included in and in valve body 1, offers cylindric installation cavity against structure, one emergency valve seat 7 is set in cylindric installation cavity, on the end face of the upper top of emergency valve seat 7, offer the oil outlet 7a being connected with above-mentioned oil discharge passage 3, on the sidewall of emergency valve seat 7, offer the logical hydraulic fluid port 7b being connected with overflow ducts 4, core bar 6 is located in emergency valve seat 7 and the coniform head 6a of this core bar 6 is pushed against on above-mentioned oil outlet 7a mouth wall by spring 8, the top of this coniform head 6a puts in above-mentioned oil outlet 7a.During Practical manufacturing, this core bar 6 also comprises the locating column 6b being installed on coniform head 6a, and at the interior guide sleeve 9 that is excessively equipped with of emergency valve seat 7, the locating column 6b of core bar 6 is located in guide sleeve 9 and this coniform head 6a is resisted against on the inner end face of guide sleeve 9.On valve body 1, be fixed with the pressure regulation valve gap 10 that abuts against emergency valve seat 7, in pressure regulation valve gap 10, be provided with guide sleeve 9 over against spring seat 11, between spring seat 11 and guide sleeve 9, be provided with above-mentioned spring 8, one end of this spring 8 puts in above-mentioned emergency valve seat 7 and abuts against above-mentioned guide sleeve 9, and the other end of this spring 8 abuts against spring seat 11; Between pressure regulation valve gap 10 and emergency valve seat 7, be provided with packing ring 12; Between emergency valve seat 7 and cylindric installation cavity wall, be also provided with O shape rubber seal 13.On pressure regulation valve gap 10, be connected with screw rod 14, screw rod 14 one end above-mentioned spring seat 11 of conflicting, the other end of this screw rod 14 offers interior hexagonal screw 15.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used herein: valve body 1; Oil inlet passage 2; Oil discharge passage 3; Overflow ducts 4; Valve rod 5; Core bar 6; Coniform head 6a; Locating column 6b; Emergency valve seat 7; Oil outlet 7a; Logical hydraulic fluid port 7b; Spring 8; Guide sleeve 9; Pressure regulation valve gap 10; Spring seat 11; Packing ring 12; O shape rubber seal 13; Screw rod 14; Interior hexagonal screw 15 terms such as grade, but do not get rid of the possibility of using other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. a lever operation valve core rod against structure, this lever operation valve comprises valve body (1), on valve body (1), offer oil inlet passage (2), oil discharge passage (3) and overflow ducts (4), described oil inlet passage (2), between oil discharge passage (3), be provided with the valve rod (5) that makes above-mentioned oil inlet passage (2) and oil discharge passage (3) be communicated with or block, described overflow ducts (4) and above-mentioned oil discharge passage (3) are connected, in valve body (1) between overflow ducts (4) and oil discharge passage (3), be provided with core bar (6), it is characterized in that, this is included in valve body (1) and offers cylindric installation cavity against structure, one emergency valve seat (7) is set in cylindric installation cavity, on the end face of the upper top of emergency valve seat (7), offer the oil outlet (7a) being connected with above-mentioned oil discharge passage (3), on the sidewall of emergency valve seat (7), offer the logical hydraulic fluid port (7b) being connected with overflow ducts (4), above-mentioned core bar (6) is located in above-mentioned emergency valve seat (7) and the coniform head (6a) of this core bar (6) is pushed against above-mentioned oil outlet (7a) Kou Bishang by spring (8), the top of this coniform head (6a) puts in above-mentioned oil outlet (7a).
2. an a kind of lever operation valve core rod according to claim 1 against structure, it is characterized in that, described core bar (6) also comprises the locating column (6b) being installed on above-mentioned coniform head (6a), in above-mentioned emergency valve seat (7), be excessively equipped with guide sleeve (9), the locating column (6b) of described core bar (6) is located in above-mentioned guide sleeve (9) and this above-mentioned coniform head (6a) is resisted against on the inner end face of above-mentioned guide sleeve (9).
3. an a kind of lever operation valve core rod according to claim 2 against structure, it is characterized in that, on valve body (1), be fixed with the pressure regulation valve gap (10) that abuts against above-mentioned emergency valve seat (7), in pressure regulation valve gap (10), be provided with above-mentioned guide sleeve (9) over against spring seat (11), between described spring seat (11) and guide sleeve (9), be provided with above-mentioned spring (8), one end of this spring (8) puts in above-mentioned emergency valve seat (7) and abuts against above-mentioned guide sleeve (9), the other end of this spring (8) abuts against above-mentioned spring seat (11).
An a kind of lever operation valve core rod according to claim 3 against structure, it is characterized in that, between described pressure regulation valve gap (10) and above-mentioned emergency valve seat (7), be provided with packing ring (12).
An a kind of lever operation valve core rod according to claim 4 against structure, it is characterized in that, between described emergency valve seat (7) and cylindric installation cavity wall, be also provided with O shape rubber seal (13).
6. an a kind of lever operation valve core rod according to claim 4 against structure, it is characterized in that, on described pressure regulation valve gap (10), be connected with screw rod (14), described screw rod (14) one end above-mentioned spring seat (11) of conflicting, the other end of this screw rod (14) offers interior hexagonal screw (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473266.9U CN203477457U (en) | 2013-08-05 | 2013-08-05 | Abutting structure of one-lever-controlled valve element rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320473266.9U CN203477457U (en) | 2013-08-05 | 2013-08-05 | Abutting structure of one-lever-controlled valve element rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203477457U true CN203477457U (en) | 2014-03-12 |
Family
ID=50225788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320473266.9U Expired - Fee Related CN203477457U (en) | 2013-08-05 | 2013-08-05 | Abutting structure of one-lever-controlled valve element rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203477457U (en) |
-
2013
- 2013-08-05 CN CN201320473266.9U patent/CN203477457U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20170805 |