CN203940033U - A kind of anticreep valve rod - Google Patents
A kind of anticreep valve rod Download PDFInfo
- Publication number
- CN203940033U CN203940033U CN201420405558.3U CN201420405558U CN203940033U CN 203940033 U CN203940033 U CN 203940033U CN 201420405558 U CN201420405558 U CN 201420405558U CN 203940033 U CN203940033 U CN 203940033U
- Authority
- CN
- China
- Prior art keywords
- groove
- movable block
- valve rod
- linkage section
- connecting key
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of anticreep valve rod; aim to provide a kind of anticreep valve rod of being convenient to installation; can effectively prevent that valve rod from flying out; jeopardize operator; its technological scheme main points are to comprise rotation section and linkage section; described linkage section comprises that the end face of described linkage section body is provided with for placing the groove of connecting key for connecting the connecting key of ball for ball valve for linkage section body, elastic component, movable block and two, and the sidewall of described linkage section body is provided with two through holes that are connected with groove; Described elastic component is fixedly connected with two connecting keys, and each connecting key matches with corresponding through hole; Described movable block and groove are slidably connected, and described movable block one end is provided with conical surface and is placed between two connecting keys, and the other end stretches out outside groove; Described movable block compresses connecting key and stretches out through hole in groove in sliding process.
Description
Technical field
The utility model relates to valve components field, and more particularly, it relates to a kind of anticreep valve rod.
Background technique
Ball valve is due to simple in structure, swift to operate, good seal performance, and easy maintenance and the valve kind with fastest developing speed that becomes no matter be on industrial pipeline, or on civil pipeline, is all widely used, particularly, on gas pipe line, consumption is maximum.Ball valve is comprised of parts such as main valve body, auxiliary valve body, seat ring, spheroid, valve rod, filler, Gland, positioning block, handles.
Wherein valve rod is ball valve vitals, for transmission, and Shang Jie actuator or handle, below directly band movable valve plug move or rotate, to realize ball valve switch or regulating action, valve rod not still movement parts, stressed member in ball valve opening-closing process, and be Sealing.
The design of existing ball-valve valve rod is to adopt from outside, to insert spheroid, valve rod one end is fixedly connected with spheroid close-fitting, the ball valve of this kind of structure is in service in operating mode, valve rod bears the pressure of flowing medium all the time, generation makes its power of outwards deviating from, be generally to adopt Gland from top, to compress the mode of the valve rod shaft shoulder, prevent that valve rod from deviating from.Ball valve is when keeping in repair or while damaging, and its valve rod and valve member are owing to having fixing generation to cause facility damage or personnel's injury because overpressure makes the danger of valve rod ejection.
Model utility content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of anticreep valve rod of being convenient to installation, can effectively prevent that valve rod from flying out, and jeopardizes operator.
For achieving the above object, the utility model provides following technological scheme: a kind of anticreep valve rod, comprise rotation section and linkage section, described linkage section comprises that linkage section body, elastic component, movable block and two are for connecting the connecting key of ball for ball valve, the end face of described linkage section body is provided with for placing the groove of connecting key, and the sidewall of described linkage section body is provided with two through holes that are connected with groove;
Described elastic component is fixedly connected with two connecting keys, and each connecting key matches with corresponding through hole;
Described movable block and groove are slidably connected, and described movable block one end is provided with conical surface and is placed between two connecting keys, and the other end stretches out outside groove;
Described movable block can compress connecting key and stretch out through hole in groove in sliding process.
By adopting technique scheme, when the spheroid of valve rod and ball valve assembles, now connecting key is placed in and in groove, does not stretch out through hole, described linkage section can conveniently be inserted into spheroid and be provided with in mounting groove, described movable block can be first inconsistent with the diapire of mounting groove, continue to press down valve rod, movable block can be along sliding in chute, thereby can make movable block stretch out in one end indentation groove outside groove, movable block compresses connecting key to two side shiftings by conical surface simultaneously, be fixedly connected with the elastic component elongation strain of two connecting keys, two connecting keys are all subject to the pulling force of elastic component to compress laminating movable block, making connecting key stretch out through hole matches with the spheroid of ball valve, make ball valve when keeping in repair or while damaging, valve rod matches with spheroid by connecting key, the pressure that can offset flowing medium produces the power that valve rod is outwards deviate from, can effectively prevent that valve rod from flying out, jeopardize operator.
The utility model is further set to: each connecting key be provided with movable block on the inclined-plane that is slidably matched of conical surface.
By adopting technique scheme, when movable block is stressed while moving inward, the conical surface on movable block can be slidably matched with the inclined-plane of connecting key, increases the spacing of two connecting keys, makes connecting key stretch out through hole and matches with the upper sphere of ball valve.
The utility model is further set to: the opening end of described groove is provided with the flange of radial protrusion, and described movable block is provided with limit dais, and described limit dais can coordinate with flange butt in sliding process in groove.
By adopting technique scheme, limit dais on movable block can coordinate by butt with the flange on groove, makes movable block sliding process in groove, and movable block can not come off in groove, prevent valve rod not with ball valve on spheroid when assembling, movable block comes off from valve stem body.
The utility model is further set to: two through holes are symmetrical along linkage section body circumferencial direction.
By adopting technique scheme, make the connecting key that coordinates with through hole also symmetrical along the section of connecing body circumferencial direction, spheroid on ball valve and connecting key are assembled more reasonable, can effectively improve valve rod and spheroid join strength.
The utility model is further set to: described elastic component is spring.
By adopting technique scheme, because spring is drawn materials conveniently, reduce manufacture cost, and spring has good flexiblely, be convenient to connecting key and under movable block effect, stretch out through hole and coordinate with the spheroid on ball valve.
Accompanying drawing explanation
Fig. 1 is the front elevation of a kind of anticreep valve rod of the utility model;
Fig. 2 is the sectional view of A-A direction in Fig. 1;
Fig. 3 is the sectional view of Fig. 1 middle connecting segment body;
Fig. 4 is the structural representation of movable block in Fig. 1;
Fig. 5 is the structural representation of connecting key in Fig. 1.
In figure 1, rotation section; 2, linkage section; 21, linkage section body; 211, groove; 2111, flange; 212, through hole; 22, elastic component; 23, movable block; 231, conical surface; 232, limit dais; 24, connecting key; 241, inclined-plane.
Embodiment
Referring to figs. 1 through Fig. 5, a kind of anticreep valve rod of the utility model is described further.
A kind of anticreep valve rod, comprise rotation section 1 and linkage section 2, this rotation section 1 and linkage section 2 are wholely set, described rotation section 1 is connected with handle, described linkage section 2 is connected with spheroid, and wherein said linkage section 2 comprises that linkage section body 21, elastic component 22, movable block 23 and two are for connecting the connecting key 24 of ball for ball valve.
The end face of described linkage section body 21 is provided with for placing the groove 211 of connecting key 24, the sidewall of described linkage section body 21 is provided with two through holes 212 that are connected with groove 211, described elastic component 22 is fixedly connected with two connecting keys 24, wherein elastic component 22 can be spring, because spring is drawn materials conveniently, reduce manufacture cost, and spring have good stretching; Each connecting key 24 matches with corresponding through hole 212, wherein two through holes 212 can be symmetrical along linkage section body 21 circumferencial directions, make the connecting key 24 that coordinates with through hole 212 also symmetrical along the section of connecing body circumferencial direction, make spheroid and connecting key 24 assemblings on ball valve more reasonable, can effectively improve valve rod and spheroid join strength.
Described movable block 23 is slidably connected with groove 211, described movable block 23 one end are provided with conical surface 231 and are placed between two connecting keys 24, described movable block 23 the other ends stretch out outside groove 211, while pressing movable block 23 this end, can make in movable block 23 indentation grooves 211, make movable block 23 in the interior slip of groove 211, described movable block 23 of while can compress connecting key 24 and stretch out through hole 212 in the interior sliding process of groove 211, wherein each connecting key 24 be provided with movable block 23 on the inclined-plane 241 that is slidably matched of conical surface 231, when movable block 23 is stressed while moving inward, conical surface 231 on movable block 23 can be slidably matched with the inclined-plane 241 of connecting key 24, increase the spacing of two connecting keys 24, making connecting key 24 stretch out through hole 212 matches with the upper sphere of ball valve.
The opening end of wherein said groove 211 is provided with the flange 2111 of radial protrusion, described movable block 23 is provided with limit dais 232, described limit dais 232 can coordinate with flange 2111 butts in the interior sliding process of groove 211, limit dais 232 on movable block 23 can coordinate by butt with the flange 2111 on groove 211, make movable block 23 at the interior sliding process of groove 211, movable block 23 can not come off in groove 211, prevent valve rod not with ball valve on spheroid when assembling, movable block 23 comes off from valve stem body.
Working principle: when the spheroid of valve rod and ball valve assembles, now connecting key 24 is placed in and in groove 211, does not stretch out through hole 212, described linkage section 2 can conveniently be inserted into spheroid and be provided with in mounting groove, described movable block 23 can be first inconsistent with the diapire of mounting groove, continue to press down valve rod, movable block 23 can be along sliding in chute, thereby can make movable block 23 stretch out in one end indentation groove 211 outside groove 211, movable block 23 compresses connecting key 24 to two side shiftings by conical surface 231 simultaneously, be fixedly connected with elastic component 22 elongation strains of two connecting keys 24, two connecting keys 24 are all subject to the pulling force of elastic component 22 to compress laminating movable block 23, making connecting key 24 stretch out through hole 212 matches with the spheroid of ball valve, make ball valve when keeping in repair or while damaging, valve rod matches with spheroid by connecting key 24, the pressure that can offset flowing medium produces the power that valve rod is outwards deviate from, can effectively prevent that valve rod from flying out, jeopardize operator.
Claims (5)
1. an anticreep valve rod, comprise rotation section and linkage section, it is characterized in that: described linkage section comprises that linkage section body, elastic component, movable block and two are for connecting the connecting key of ball for ball valve, the end face of described linkage section body is provided with for placing the groove of connecting key, and the sidewall of described linkage section body is provided with two through holes that are connected with groove;
Described elastic component is fixedly connected with two connecting keys, and each connecting key matches with corresponding through hole;
Described movable block and groove are slidably connected, and described movable block one end is provided with conical surface and is placed between two connecting keys, and the other end stretches out outside groove;
Described movable block compresses connecting key and stretches out through hole in groove in sliding process.
2. a kind of anticreep valve rod according to claim 1, is characterized in that: each connecting key be provided with movable block on the inclined-plane that is slidably matched of conical surface.
3. a kind of anticreep valve rod according to claim 1 and 2, is characterized in that: the opening end of described groove is provided with the flange of radial protrusion, and described movable block is provided with limit dais, and described limit dais can coordinate with flange butt in sliding process in groove.
4. a kind of anticreep valve rod according to claim 1, is characterized in that: two through holes are symmetrical along linkage section body circumferencial direction.
5. a kind of anticreep valve rod according to claim 1, is characterized in that: described elastic component is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420405558.3U CN203940033U (en) | 2014-07-22 | 2014-07-22 | A kind of anticreep valve rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420405558.3U CN203940033U (en) | 2014-07-22 | 2014-07-22 | A kind of anticreep valve rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940033U true CN203940033U (en) | 2014-11-12 |
Family
ID=51859347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420405558.3U Expired - Fee Related CN203940033U (en) | 2014-07-22 | 2014-07-22 | A kind of anticreep valve rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203940033U (en) |
-
2014
- 2014-07-22 CN CN201420405558.3U patent/CN203940033U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20141112 Termination date: 20160722 |