CN203823233U - Valve rod assembly - Google Patents
Valve rod assembly Download PDFInfo
- Publication number
- CN203823233U CN203823233U CN201420250237.0U CN201420250237U CN203823233U CN 203823233 U CN203823233 U CN 203823233U CN 201420250237 U CN201420250237 U CN 201420250237U CN 203823233 U CN203823233 U CN 203823233U
- Authority
- CN
- China
- Prior art keywords
- valve rod
- base
- chute
- valve
- convex tendon
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a valve rod assembly which comprises a valve rod base with a sliding groove, a valve rod with the head contained in the sliding groove of the valve rod base and a box cover matched with the valve rod base. An eccentric gear is rotatably arranged on the inner side of the box cover, the valve rod comprises a rod body and a block-shaped sliding head arranged at one end of the rod body, a through hole is formed in the sliding head, the eccentric gear comprises an eccentric shaft, and the eccentric shaft is arranged in the through hole of the sliding head in a penetrating mode to drive the valve rod to slide in the sliding groove. The sliding head comprises two first side faces which are arranged on the two sides of the rod body respectively and are parallel to the axis of the rod body, and outward protrusions perpendicular to the first side faces are arranged on the first side faces. According to the valve rod assembly, the protrusions are ingeniously arranged on the first side faces on the basis of the traditional block-shaped head of the valve body, the contact area between the side faces and the corresponding faces of the valve rod base can be reduced, the contact tightness between the side faces and the corresponding face of the valve rod base is improved, sliding fit between the side faces and the corresponding face of the valve rod base is more stable, the fluid can be smoothly and steadily controlled, meanwhile, the service life of the whole valve rod assembly can be prolonged, and safety is increased.
Description
Technical field
The utility model relates to valve part, relates in particular to valve rod assembly.
Background technique
Valve rod is the vitals of valve, for transmission, and one termination actuator or handle, the other end is directly with movable valve plug to move or rotate, to realize valve switch or regulating action.Valve rod case is for accommodating valve rod, the motion of restriction valve rod, generally includes valve rod base and case lid, and one end that valve rod connects actuator or handle is slide head, be arranged in above-mentioned valve rod base, rely on valve rod head and coordinating of valve rod base to slide the motion of valve rod is played to leading role.But the slide head of existing valve rod, its bi-side that contact with valve rod base are light face, area of contact is large, increase on the one hand frictional force, shorten valve rod and valve rod base life-span, for ensureing the close contact of slide head side and valve rod base, high to the flatness processing request of slide head respective side on the other hand, conventionally be difficult to ensure the stationarity that therefore impact is slided.
Summary of the invention
The utility model has overcome the deficiencies in the prior art, provides a kind of simple in structure, easy to process, and valve rod and valve rod base are slidably matched, and tightness is high, stationarity is good, the valve rod assembly simultaneously being extended working life.
For achieving the above object, the technical solution adopted in the utility model is: valve rod assembly, comprise the valve rod base with a chute, the valve rod of head captured in valve rod base chute, and be arranged on above described chute, the case lid coordinating with valve rod base, the inner side of described case lid is the rotating eccentricity gear that is provided with also, described valve rod comprises the body of rod and is arranged on the block slide head of described body of rod one end, slide head is provided with through hole, described eccentricity gear comprises an eccentric shaft, eccentric shaft is located in the through hole of slide head is with ovable valve stem to slide in chute, it is characterized in that: described slide head comprises and lays respectively at body of rod both sides, be parallel to two first sides of body of rod axis, described the first side is provided with outside outstanding in vertical the first side.
Preferably, described valve rod the first side is arranged with described outstanding along the two ends of body of rod axial direction.
Preferably, described arc-shaped protrusions of giving prominence to as outwards swelling with respect to the first side, place.
Preferably, described slide head also comprises that two are all parallel to body of rod axial direction, the second side perpendicular to the first side, described at least one, the second side is provided with vertical outside some the first convex tendons, and whole the first convex tendons on the second side are at least about described body of rod axis symmetry.
Preferably, on described the second side, be provided with altogether described first convex tendon of a ring-type.
Preferably, described chute bottom land is provided with the second convex tendon of some support valve stem slides.
Preferably, the second convex tendon of described chute and the first convex tendon of described valve rod directly contact.
Preferably, described the second convex tendon extends along the glide direction of described valve rod, and the second convex tendon has identical shape of cross section along described bearing of trend arbitrary position, and described cross-sectional profiles is circular arc.
Preferably, the both sides, top of described valve rod base are respectively equipped with fixture block, and described case lid is arranged on valve rod base top, corresponding both sides are respectively equipped with the retaining wall to downward-extension, and case lid is resisted against outside and the valve rod base clamping of corresponding fixture block by retaining wall.
Preferably, described valve rod base comprises a base and the assembly department perpendicular to described base, and described chute is arranged on base, and the both sides of described assembly department protrude from respectively described base.
The utility model has solved the defect existing in background technique, has following beneficial effect:
1. valve rod assembly of the present utility model, outstanding in its ingenious interpolation in the first side on the basis of valve rod Traditional bulk head, can reduce the obverse area of contact of this side and valve rod base, improve the closeness of contact of the two, make to be slidably matched more steady, be conducive to steadily control fluid, also can extend the working life of valve rod assembly entirety simultaneously, increase Security, reduce costs.
2. valve rod the first side is arranged with outstanding along the two ends of body of rod axial direction.Can arrange less ensure in outstanding valve rod along the body of rod axis two ends balance in slip.
3. the outstanding shape of being arranged to arc-shaped protrusions, can reduce and the obverse area of contact of valve rod base greatly with respect to the projection with plane end face.Especially design is outstanding has identical cross section along the first short transverse arbitrary position, side, and cross-sectional profiles is circular arc, making on the one hand valve rod projection and contacting of valve rod base plane is line contact, coordinate tightr, wear and tear slower, on the other hand than giving prominence to the form that is designed to have along the first side length direction arbitrary position identical cross-section, ensure projection and the contact cooperation of valve rod base in whole short transverse, slide head coordinates and can keep the balance of this direction in slip with the line of valve rod base along body of rod axial direction two ends simultaneously.
4. the first convex tendon about body of rod axis symmetry is set on the second side, can reduces the area of contact of valve rod the second side and valve rod base respective face, coordinate the outstanding setting of the first side, improve the tightness and the stationarity that are slidably matched from both direction.
5. the first convex tendon of design ring-type can at utmost keep the circumferential balance of valve rod slide head in sliding process, also meets the requirement that reduces slide head the second side and valve rod base respective face area of contact simultaneously.Especially applicable the second side of this ring-type convex tendon is provided with the slide head of through hole, this through hole is generally used for wearing rotating component band ovable valve stem and moves, and ring-type convex tendon also can strengthen through hole edge strength in the time that through hole peritreme is arranged on minimizing sliding contact area.
6. two second sides of slide head all arrange the first convex tendon, can ensure reducing of contact both sides area, with chute area of contact reduce and with the reducing of eccentricity gear area of contact, improve the balance of both sides.
7. chute bottom land arranges the second convex tendon that supports valve stem slides, also can play and reduce this bottom surface and the obverse area of contact of valve rod, improves the closeness of contact of the two, and object more stably makes to be slidably matched.Especially the slide head that is provided with the first convex tendon and the coordinating of valve rod base that is provided with the second convex tendon.
8. the second convex tendon can be arranged to the shape of arc-shaped protrusions, making itself and valve rod corresponding surface is on the one hand that line contacts, state with respect to plane can reduce area of contact greatly, coordinate tightr, wear and tear slower, on the other hand the second convex tendon is designed to have along self bearing of trend arbitrary position the form of identical cross-section, can ensure the second convex tendon and the contact cooperation of valve rod at a whole valve stem slides stroke, slide head coordinates and can keep the balance of this direction in slip with the line of valve rod base along body of rod axial direction two ends simultaneously.
9. the assembly department vertical with base is set, and the both sides of assembly department protrude from respectively base, can be conveniently at the both sides of base assembly, especially in the situation that a side is installed valve rod, eccentricity gear, case lid, also can the other mechanism motor that for example actuate valve stem is slided be installed at opposite side, save parts, compact structure.Mounting hole or mounting groove also can be set on assembly department, the needs of parts are set along stem movement direction one side to meet valve rod case, for example, valve body is installed, make the parts concentrated setting as far as possible that matches, transmission efficiency is high.
10. both sides, valve rod base top arrange respectively fixture block, can coordinate with the retaining wall clamping of case lid, limit relatively moving of the two, convenient fixing.Especially the inside arc-shaped bend in side upper end that two fixture blocks deviate from mutually, can facilitate fixture block to slip into retaining wall inner side, improves installation efficiency.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model embodiment's assembling schematic diagram;
Fig. 2 is the enlarged diagram of local A shown in Fig. 1;
Fig. 3 is the enlarged diagram of local B shown in Fig. 1;
Fig. 4 is from seeing the utility model embodiment's assembling schematic diagram with Fig. 1 opposite direction;
Fig. 5 is the cross sectional representation of the second convex tendon in the utility model embodiment;
In figure: 1, valve rod, 12, the body of rod, 14, slide head, 142, through hole, 144, the first side, 146, the second side, 2, valve rod base, 22, base, 222, chute, 224, fixed hole, 24, assembly department, 242, First, 244, second, 246, mounting groove, 4, case lid, 42, cavity volume, 44, retaining wall, 46, axis hole, 442, fixed hole, 5, eccentricity gear, 52, axle, 54, eccentric shaft, 6, the second convex tendon, 7, outstanding, 8, the first convex tendon, 9, fixture block.
Embodiment
In conjunction with the accompanying drawings and embodiments the utility model is described in further detail now, these accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the formation relevant with the utility model.
As Figure 1-5, valve rod assembly, comprises valve rod base 2, the valve rod 1 of head captured in valve rod base 2 chutes 222 with a chute 222, and the case lid 4 that is arranged on chute 222 tops, coordinates with valve rod base 2.The inner side of case lid 4 is the rotating eccentricity gear 5 that is provided with also, valve rod 1 comprises the body of rod 12 and is arranged on the block slide head 14 of the body of rod 12 one end, slide head 14 is provided with through hole 142, eccentricity gear 5 comprises an eccentric shaft 54, and eccentric shaft 54 is located in the through hole 142 of slide head 14 is with ovable valve stem 1 to slide in chute 222.
Valve rod base 2 forms valve rod case with the case lid 4 that is arranged on chute 222 tops, coordinate with valve rod base 2.Valve rod base 2 comprises a base 22 and is vertical at the assembly department 24 of base 22 one end.Chute 222 is arranged on base 22, and one end is in abutting connection with assembly department 24, and the other end is uncovered.Assembly department 24 is tabular, and both sides protrude from respectively base 22, and with the part that chute 222 notch directions protrude from base 22 be in the same way First 242, the part that oppositely protrudes from base 22 with chute 222 notch directions is second 244.First 242 can be used for arranging 4, the second 244 of case lids that coordinate with base 22 and can be used for installing the parts that other coordinates with valve rod case, valve rod 1, for example motor.So can compact base 22, the installation of case lid 4 and valve rod 1, an assembly department 24 can be fixed parts as much as possible.In addition, assembly department 24 is provided with the mounting groove 246 of axis along valve rod 1 glide direction, mounting groove 246 is formed to chute 222 directions depressions by assembly department 24 surfaces, can accommodating valve body, mangetic core assembly, and facilitate the compactness of valve body, spool and valve rod 1 install and be in transmission connection.
Chute 222 bottom lands are being respectively equipped with the second convex tendon 6 near both sides cell wall places, and two second convex tendons 6 are symmetrical arranged, and ensure being contained in valve rod 1 slide head 14 balance supports in chute 222.Concrete, the second convex tendon 6 is that cell wall bearing of trend extends along the glide direction of valve rod 1, and the second convex tendon 6 has identical shape of cross section along self bearing of trend arbitrary position, and cross-sectional profiles is symmetrical circular arc.
Valve rod 1, comprises the cylindric body of rod 12 and the flat block slide head 14 that is arranged on the body of rod 12 one end.Slide head 14 entirety are about the body of rod 12 axis symmetries, comprise lay respectively at the body of rod 12 both sides, be parallel on 144, two first sides 144, two first sides of the body of rod 12 axis, be respectively equipped with vertical the first side 144 outside outstanding 7.Concrete, the first side 144 is arranged with outstanding 7 along the two ends of the body of rod 12 axial directions.Outstanding 7 is with respect to place the first outwards arc-shaped protrusions of protuberance of side 144.More specifically, outstanding 7 have identical cross section along 144 short transverse arbitrary positions, the first side, and as shown in Figure 3, cross-sectional profiles is circular arc, is preferably symmetric, arc.Slide head 14 also comprises that two are all parallel to the body of rod 12 axial directions, are provided with kidney-shaped through hole 142 perpendicular to 146, the second sides 146, the second side of the first side 144.Each the second side 146 is provided with the first convex tendon 8, the first convex tendons 8 of a vertical outside ring-type along through hole 142 peritreme settings, about the body of rod 12 axis symmetries.The outer end end face of the first convex tendon 8 is plane.On two second sides 146, be symmetrical arranged the first convex tendon 8.Valve rod 1 is contained in the chute 222 of valve rod base 2, and the first convex tendon 8 on the second side 146, bottom is resisted against on the second convex tendon 6 of chute 222.
Case lid 4 is arranged on valve rod base 2 tops, has a cavity volume 42 coordinating with chute 222.The both sides, top of valve rod base 2 are respectively equipped with fixture block 9, thereby case lid 4 is resisted against the outside and valve rod base 2 clampings of corresponding fixture block 9 as retaining wall 44 corresponding to the both sides chamber wall of 2 liang of fixture block 9 positions of valve rod base.Concrete, the inside arc-shaped bend in side upper end that two fixture blocks 9 deviate from mutually, can facilitate fixture block 9 to slip into retaining wall 44 inner sides, improves installation efficiency.More specifically, the both sides, top of valve rod base 2 are also respectively equipped with fixed hole 224, and case lid 4 retaining walls 44 are provided with the fixed hole 442 coordinating with fixed hole 224, after case lid 4 and valve rod base 2 clampings, can realize fixing by being threaded of fixed hole 224 and fixed hole 442.Eccentricity gear 5 comprises an axle 52 and eccentric shaft 54, is arranged between case lid 4 and valve rod 1 slide head 14, taking case lid 4 as pinion stand.Concrete, case lid 4 is provided with axis hole 46, and the axle 52 of eccentricity gear 5 is located in axis hole 46, and 54 of eccentric shafts are located in the through hole 142 of valve rod 1 slide head 14.In the time driven by motor eccentricity gear 5 is set rotates, eccentricity gear 5 is with ovable valve stem 1 slide head 14 to-and-fro motion in chute 222.
When installation, the slide head of valve rod 1 14 one end are inserted in valve rod base 2 chutes 222, eccentricity gear 5 is arranged on slide head 14, eccentric shaft 54 inserts through hole 142, add a cover afterwards case lid 4 on eccentricity gear 5, match with the base 22 of valve rod base 2, the axle 52 of eccentricity gear 5 is through the axis hole 46 of case lid 4.Concrete, case lid 4 being engaged by fixture block 9 with base 22, then be fixed connection by fixed hole 224,442, case lid 4 is fixed in the First 242 of assembly department 24.Case lid 4 and eccentricity gear 5 are pressed on valve rod 1 slide head 14 on the second convex tendon 6 of chute 222, and the first convex tendon 8 and the second convex tendon 6 offset, and two side-prominent 7 offset with the cell wall of chute 222, realize and closely cooperating respectively, and the relative sliding of the two is steadily carried out.
Be enlightenment according to desirable embodiment of the present utility model above, by above-mentioned description, related personnel can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine technical scope according to claim scope.
Claims (10)
1. valve rod assembly, comprise the valve rod base with a chute, the valve rod of head captured in valve rod base chute, and be arranged on above described chute, the case lid coordinating with valve rod base, the inner side of described case lid is the rotating eccentricity gear that is provided with also, described valve rod comprises the body of rod and is arranged on the block slide head of described body of rod one end, slide head is provided with through hole, described eccentricity gear comprises an eccentric shaft, eccentric shaft is located in the through hole of slide head is with ovable valve stem to slide in chute, it is characterized in that: described slide head comprises and lays respectively at body of rod both sides, be parallel to two first sides of body of rod axis, described the first side is provided with outside outstanding in vertical the first side.
2. valve rod assembly according to claim 1, is characterized in that: described valve rod the first side is arranged with described outstanding along the two ends of body of rod axial direction.
3. valve rod assembly according to claim 1, is characterized in that: described arc-shaped protrusions of giving prominence to as outwards swelling with respect to the first side, place.
4. according to the valve rod assembly described in claim 1-3 any one, it is characterized in that: described slide head also comprises that two are all parallel to body of rod axial direction, the second side perpendicular to the first side, described at least one, the second side is provided with vertical outside some the first convex tendons, and whole the first convex tendons on the second side are at least about described body of rod axis symmetry.
5. valve rod assembly according to claim 4, is characterized in that: described the first convex tendon that is provided with altogether a ring-type on described the second side.
6. valve rod assembly according to claim 1, is characterized in that: described chute bottom land is provided with the second convex tendon of some support valve stem slides.
7. valve rod assembly according to claim 6, is characterized in that: the second convex tendon of described chute directly contacts with the first convex tendon of described valve rod.
8. according to the valve rod assembly described in claim 6 or 7, it is characterized in that: described the second convex tendon extends along the glide direction of described valve rod, and the second convex tendon has identical shape of cross section along described bearing of trend arbitrary position, described cross-sectional profiles is circular arc.
9. valve rod assembly according to claim 1, it is characterized in that: the both sides, top of described valve rod base are respectively equipped with fixture block, described case lid is arranged on valve rod base top, corresponding both sides are respectively equipped with the retaining wall to downward-extension, and case lid is resisted against outside and the valve rod base clamping of corresponding fixture block by retaining wall.
10. valve rod assembly according to claim 1, is characterized in that: described valve rod base comprises a base and the assembly department perpendicular to described base, and described chute is arranged on base, and the both sides of described assembly department protrude from respectively described base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250237.0U CN203823233U (en) | 2014-05-16 | 2014-05-16 | Valve rod assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250237.0U CN203823233U (en) | 2014-05-16 | 2014-05-16 | Valve rod assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823233U true CN203823233U (en) | 2014-09-10 |
Family
ID=51478735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250237.0U Withdrawn - After Issue CN203823233U (en) | 2014-05-16 | 2014-05-16 | Valve rod assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968152A (en) * | 2014-05-16 | 2014-08-06 | 江苏宇海环保设备有限公司 | Valve rod assembly |
-
2014
- 2014-05-16 CN CN201420250237.0U patent/CN203823233U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968152A (en) * | 2014-05-16 | 2014-08-06 | 江苏宇海环保设备有限公司 | Valve rod assembly |
| CN103968152B (en) * | 2014-05-16 | 2016-05-25 | 江苏宇海环保设备有限公司 | Valve rod assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103557200B (en) | A kind of oil hydraulic cylinder with anti-rotation mechanism | |
| CN203823233U (en) | Valve rod assembly | |
| CN103968152B (en) | Valve rod assembly | |
| CN203823192U (en) | Valve rod box | |
| CN204941960U (en) | For rotary compressor compressing mechanism and there is its rotary compressor | |
| CN204320372U (en) | A kind of eccentric sleeve mechanism for cone crusher | |
| CN203755873U (en) | Oil-free automatic door closer | |
| CN103982688A (en) | Valve rod box | |
| CN209041054U (en) | A kind of structure-improved of new type compressor crosshead | |
| CN209288675U (en) | Bearing press mounting equipment | |
| WO2016029549A1 (en) | Dead point-free internal combustion engine dual-piston follower connecting rod mechanism | |
| CN209351171U (en) | A kind of Mecanum wheel in hydraulic regulation roller direction | |
| CN203398600U (en) | Drawer propulsion mechanism for switch cabinet | |
| CN203098247U (en) | Inclined-shaft back cover for plunger hydraulic pump | |
| CN207364229U (en) | A kind of differential gear | |
| CN105276157A (en) | Automobile and gear shifter thereof | |
| CN204941940U (en) | Rotary compressor | |
| CN203453429U (en) | Double-bearing over-positioning device | |
| CN203315505U (en) | Gearing for roller unlocking and medical gas supply apparatus with same | |
| CN203730325U (en) | Movable scroll for scroll compressor and scroll compressor | |
| CN204783551U (en) | Oil absorption subassembly of compressor and compressor that has it | |
| CN103953789A (en) | Valve rod | |
| CN211175251U (en) | Double-slider synchronous split electric cylinder | |
| CN205101060U (en) | Lower follow -up rocking arm | |
| CN208038696U (en) | A kind of slide cam selector location structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140910 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |