CN204755949U - Safe low isolating valve that leaks - Google Patents
Safe low isolating valve that leaks Download PDFInfo
- Publication number
- CN204755949U CN204755949U CN201520572787.9U CN201520572787U CN204755949U CN 204755949 U CN204755949 U CN 204755949U CN 201520572787 U CN201520572787 U CN 201520572787U CN 204755949 U CN204755949 U CN 204755949U
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- CN
- China
- Prior art keywords
- blade
- revolve
- vice
- spring
- cushion
- 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- Withdrawn - After Issue
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a safe low isolating valve that leaks, including valve body, disk seat, blade, blade rotor, link mechanism, drive arrangement, rubber seal and blade compound movement mechanism, blade compound movement mechanism including be used for restricting the blade open angle stop gear, revolve vice, revolve cushion in vice, spring catch and spring, revolve vice one end and blade rotor immobilization connection, the other end and blade be through the round pin hub connection, revolves in vice the cushion and rotationally set up and revolving on vice, the fixed setting on the blade of through -hole of revolving cushion in vice is passed to spring catch one end, the other end is equipped with the self -locking nut, spring suit is on the spring catch and restrict in revolving in vice between cushion and the self -locking nut. The utility model discloses following beneficial effect has: compact structure. Adopt adjustable compression spring then can the effective control to produce moment, all receive the restraint fixed in impelling the free opening and closing process of blade, and produce compound movement and guaranteed that the blade is opened and close and do not compress with there being the free translation of interference between the rubber seal state under.
Description
Technical field
The utility model relates to a kind of special valve of isolating medium for industrial ventilation air-conditioning system, is specifically related to the separating valve of the low leakage of a kind of safety.
Background technique
This type of separating valve is mainly used in the ventilation and air conditioning system of nuclear fuel factory building at present, a kind of rectangular isolation wind valve with home is disclosed in Chinese invention patent CN101358655B, this rectangular isolation wind valve is a kind of mutliblade separating valve, it adopts and is affiliated to extension spring and realizes compound motion, makes leaf abscission valve seat and opens; This employing extension spring two ends are affiliated to and are realized the compound motion of blade, such structure is impelled to cause separating valve in the simultaneously shake of switch motion, and cause coming off of spring, cause leaf switch to lose efficacy, seriously undermine the safety and reliability of such valve.Also have in Chinese invention patent CN101430011B and disclose a kind of electromagnetic driving fast isolation rectangular wind valve, this rectangular isolation wind valve is a kind of separating valve of double-leaf, it adopts embedded non-adjustable Compress Spring and realizes compound motion, makes leaf abscission valve seat and opens; The embedded Compress Spring of this kind of employing, after blade is opened completely, does not but carry out compression to spring and fixes, impel when running into earthquake disaster, and blade can because without fixing and collide and lose efficacy.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of separating valve allowing blade be realized the low leakage of safety of normal switch by compound motion safely and reliably.
The technical solution realizing the utility model object is: the separating valve of the low leakage of safety, comprise valve body, valve seat, blade, blade rotor, linkage mechanism, drive unit, rubber seal and blade composite-motion mechanism, it is characterized in that: described blade composite-motion mechanism comprises for limit blade open angle position-limit mechanism, revolve pair, revolve secondary interior cushion block, spring pin and spring, describedly revolve secondary one end and blade rotor is fixedly connected, the other end and blade pass through pinned connection, revolve secondary in cushion block be arranged on rotationally and revolve in pair, spring pin one end is fixedly installed on blade through the through hole revolving secondary interior cushion block, the other end is provided with self-locking nut, described spring housing to be contained on spring pin and be limited to revolve secondary between cushion block and self-locking nut.
The locating stud that described position-limit mechanism is installed for limit blade open angle by the bilateral symmetry in valve body forms, corresponding four locating studs of blade.
The separating valve of the low leakage of the utility model safety has following beneficial effect: compact structure, and Security is high; Adopt adjustable Compress Spring then can effectively control to produce moment, impel all be tied in blade free switch process fixing, and produce compound motion ensure that under blade open/close states with between rubber seal without interfering free shift compression; Position-limit mechanism adopts locating stud, and structure is simple; Facilitate the maintenance of separating valve, operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the utility model is elaborated;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is generalized section of the present utility model;
Fig. 3 is the enlarged view at I place in Fig. 1;
Fig. 4 is the enlarged view at II place in Fig. 2;
Fig. 5 is blade compound motion decomposing schematic representation.
Embodiment
As shown in Figure 1 to 4, the separating valve of the low leakage of safety, comprise valve body 1, valve seat 2, blade 3, blade rotor 4, linkage mechanism 5, drive unit 6, rubber seal 7 and blade composite-motion mechanism 8, described blade composite-motion mechanism 8 comprises for limit blade open angle position-limit mechanism 8.1, revolves pair 8.2, revolves secondary interior cushion block 8.3, spring pin 8.4 and spring 8.5, the locating stud that described position-limit mechanism 8.1 is installed for limit blade open angle by the bilateral symmetry in valve body forms, corresponding four locating studs of blade, describedly revolve secondary 8.2 one end and blade rotor 4 is fixedly connected, the other end is connected by bearing pin 8.6 with blade 3, revolve secondary in cushion block 8.3 be arranged on rotationally and revolve on secondary 8.2, spring pin 8.4 one end is fixedly installed on blade 3 through the through hole 8.31 revolving secondary interior cushion block 8.3, the other end is provided with self-locking nut 8.7, make to revolve secondary interior pad 8.3 be confined to spring pin 8.4 and do limited rotation between revolving secondary 8.2, described spring 8.5 to be sleeved on spring pin 8.4 and be limited to revolve secondary between cushion block 8.3 and self-locking nut 8.7, by regulating self-locking nut, realize spring 8.5 decrement adjustable.
As shown in Figure 5, its mode of execution of blade composite-motion mechanism of the separating valve of the low leakage of safety is as Fig. 5 .1 to Fig. 5 .2, described blade rotor 4 drives and revolves secondary 8.2 and open rotation, then impacting force is lost between blade 3 and valve seat 2, spring 8.5 discharges decrement to be promoted self-locking nut 8.7 moves, thus band moving vane 3 underpart is close to being adjacent to blade rotor 4 gradually, respective vanes 3 upper end portion is almost similar to motionless; Realize the rubber seal 7 on the single-ended effective disengaging valve seat 2 of blade 4.
As Fig. 5 .2 to Fig. 5 .3, described blade 3 is adjacent to blade rotor 4 to be continued to open rotation, and blade 3 upper end portion also effectively departs from the rubber seal 7 on valve seat 2 gradually; Rotate to blade 3 lower end surface and position-limit mechanism 8.1a tangent, its process blade 3 underpart is close to blade rotor 4 and is rotated and effectively to avoid and rotary course between rubber seal 7 is interfered.
As Fig. 5 .3 to Fig. 5 .4, described blade 3 lower end surface and position-limit mechanism 8.1a tangent after revolve secondary 8.2 and continue to open rotation, rotate around position-limit mechanism 8.1a tangent plane in drive lower blade 3 lower end surface of bearing pin 8.6, spring 8.5 gradually reduces simultaneously, also promote blade 3 upper-end surface and position-limit mechanism 8.1b tangent, and form full open position.
Claims (2)
1. the separating valve of the low leakage of safety, comprise valve body, valve seat, blade, blade rotor, linkage mechanism, drive unit, rubber seal and blade composite-motion mechanism, it is characterized in that: described blade composite-motion mechanism comprises for limit blade open angle position-limit mechanism, revolve pair, revolve secondary interior cushion block, spring pin and spring, describedly revolve secondary one end and blade rotor is fixedly connected, the other end and blade pass through pinned connection, revolve secondary in cushion block be arranged on rotationally and revolve in pair, spring pin one end is fixedly installed on blade through the through hole revolving secondary interior cushion block, the other end is provided with self-locking nut, described spring housing to be contained on spring pin and be limited to revolve secondary between cushion block and self-locking nut.
2. the separating valve of the low leakage of safety according to claim 1, is characterized in that: the locating stud that described position-limit mechanism is installed for limit blade open angle by the bilateral symmetry in valve body forms, corresponding four locating studs of blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572787.9U CN204755949U (en) | 2015-07-30 | 2015-07-30 | Safe low isolating valve that leaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520572787.9U CN204755949U (en) | 2015-07-30 | 2015-07-30 | Safe low isolating valve that leaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755949U true CN204755949U (en) | 2015-11-11 |
Family
ID=54470656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520572787.9U Withdrawn - After Issue CN204755949U (en) | 2015-07-30 | 2015-07-30 | Safe low isolating valve that leaks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755949U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134974A (en) * | 2015-07-30 | 2015-12-09 | 南方风机股份有限公司 | Safe and low-leakage isolation valve |
| CN114458774A (en) * | 2022-02-15 | 2022-05-10 | 石家庄阀门一厂股份有限公司 | Isolation air valve |
-
2015
- 2015-07-30 CN CN201520572787.9U patent/CN204755949U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105134974A (en) * | 2015-07-30 | 2015-12-09 | 南方风机股份有限公司 | Safe and low-leakage isolation valve |
| CN105134974B (en) * | 2015-07-30 | 2017-10-24 | 南方风机股份有限公司 | The isolating valve of the low leakage of safety |
| CN114458774A (en) * | 2022-02-15 | 2022-05-10 | 石家庄阀门一厂股份有限公司 | Isolation air valve |
| CN114458774B (en) * | 2022-02-15 | 2023-12-12 | 石家庄先楚核能装备股份有限公司 | Isolation air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20171024 |
|
| AV01 | Patent right actively abandoned |