CN202884235U - Draw-bar packing gate valve - Google Patents
Draw-bar packing gate valve Download PDFInfo
- Publication number
- CN202884235U CN202884235U CN 201220597399 CN201220597399U CN202884235U CN 202884235 U CN202884235 U CN 202884235U CN 201220597399 CN201220597399 CN 201220597399 CN 201220597399 U CN201220597399 U CN 201220597399U CN 202884235 U CN202884235 U CN 202884235U
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- China
- Prior art keywords
- valve
- packing
- rod
- gate valve
- filler
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- Expired - Lifetime
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Abstract
The utility model discloses a draw-bar packing gate valve, and relates to a valve structure for controlling connection and disconnection of an urban water supply system, a petroleum pipeline system, a control system and the like. The draw-bar packing gate valve mainly comprises a valve body, a valve cover, a gate plate, a valve rod, packing, a hand wheel and the like, a packing box between the valve rod and the valve cover is of an open structure with an open upper portion, a packing retaining ring and the packing are sequentially filled into the packing box, the upper portion of the packing is tightly pressed by a pressing ring and a compression nut, the valve rod can be conveniently filled into the valve cover from the upper portion by the aid of the packing box with the open upper portion, the packing and the packing retaining ring can be lifted out only by opening the compression nut and the pressing ring, parts are conveniently replaced, leakage of the gate valve can be decreased by properly adjusting compression force of the compression nut, assembling irreversibility can be effectively eliminated by the improved structure, and maintenance difficulty is reduced based on guarantee of the advantages of the packing gate valve. Besides, the draw-bar packing gate valve has the advantages of reliability of connection and seal, low production cost, long service life and the like.
Description
Technical field
The utility model relates to a kind of gate valve structure for control pipeline system switching, refers in particular to and lifts rod-type filler gate valve.
Background technique
The filler gate valve is to use very widely a kind of control gear in the pipe-line system, be mainly used in controlling the city for the break-make of water supply system, petroleum pipeline system, control system etc., because it has that the bodily form is little, fluid resistance is little, hoisting capacity is little, MEDIA FLOW is to the advantage such as unrestricted, so have irreplaceable effect in pipe-line system.Traditional filler gate valve generally is to be made of structures such as valve body, flashboard, valve gap, valve rod, handwheel, fillers, and the structure that adopts valve rod upwards to pack into from bonnet lower, then adopt collar or nut structure to fix valve rod, cause gate valve to scrap in order to prevent that collar or nut from getting loose, generally also need manufacturing machine deformation to guarantee the validity that connects, this just causes assembly technology comparatively complicated and can not change by convenient for maintaining, has greatly affected cost of production and the working life of product.
Summary of the invention
Technical problem to be solved in the utility model be to overcome the defective of prior art and provide a kind of connect sealing reliable, install change convenient, cost of production is low, long service life lift rod-type filler gate valve, this filler gate valve can effectively be eliminated the nonreversibility of assembling, has reduced again maintenance difficulty on the basis that guarantees the advantage of filler gate valve own.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of rod-type filler gate valve that lifts comprises the valve body with valve pocket, is provided with in this valve pocket be used to the flashboard that cuts off described valve pocket; Described valve body top is provided with the valve gap that is tightly connected, and is provided with in this valve gap that an end connects flashboard, the other end stretches out the valve rod that valve gap exposes, and is provided with the handwheel that is in transmission connection at the exposed junction of valve rod; Be provided with stuffing box between described valve rod and the valve gap, in this stuffing box filler is installed, described stuffing box is opened upper end formula structure, is provided with packing retaining ring and the filler of packing into successively from top in this stuffing box, this filler top is provided with trim ring, also is provided with the gland nut that is connected to the valve gap top.
The surface of contact of described filler and packing retaining ring is the inclined-plane.
Described packing retaining ring bottom contacts on the interior shoulder set in valve gap.
Be provided with gasket seal between described valve gap and the valve body.
Be provided with square shaft between described valve rod exposed junction and the handwheel, square hole is in transmission connection, the party's shaft end also is connected with label and locking nut.
Compared with prior art, the utility model is the open type structure that the stuffing box between valve rod and the valve gap is adopted opened upper end, then in packing successively packing retaining ring and filler into stuffing box from top, and compressed by trim ring and gland nut on filler top, owing to be improved to the open stuffing box structure in top, so valve rod can be packed in the valve gap easily by top, only need open gland nut and trim ring can propose filler and packing retaining ring, also made things convenient for the replacing of component, the suitable impacting force to gland nut is regulated in the regular maintenance process simultaneously, reduced the generation of gate valve seepage situation, structure after the improvement can effectively be eliminated the nonreversibility of assembling, on the basis that guarantees the advantage of filler gate valve own, reduce again maintenance difficulty, also had the sealing of connection reliably, cost of production is low, the advantages such as long service life.
Description of drawings
Fig. 1 is sectional structure schematic representation of the present utility model (half section state).
Embodiment
The below will elaborate to the utility model embodiment by above-mentioned accompanying drawing again.
As shown in Figure 1,1. locking nut, 2. label, 3. handwheel, 4. valve rod, 5. gland nut, 6. trim ring, 7. filler, 8. packing retaining ring, 9. valve gap, 10. gasket seal, 11. flashboards, 12. valve bodies.
Lift rod-type filler gate valve, as shown in Figure 1, it relates to a kind of valve mechanism for control pipeline system switching, mainly is to be made of valve body 12, valve gap 9, flashboard 11, valve rod 4, filler 7 and handwheel 3 etc.
Have valve pocket in the described valve body 12, can be used for the circulation for the pipe-line system medium; Described valve gap 9 is threaded in valve body 12 tops, is provided with gasket seal 10 to connect sealing between valve gap and valve body; Described valve rod 4 is movably arranged in the valve gap 9, this valve rod lower end flashboard 11 interior with being arranged on valve pocket forms and is connected, so can drive flashboard rotates to cut off the medium circulation in the valve pocket or opens valve pocket with circulation medium, these valve rod 4 upper ends protrude upward valve gap 9 and expose, the exposed junction of valve rod is designed to the square axis structure, simultaneously, one handwheel 3 with cubic hole is sleeved on the square axis that valve rod 4 exposes, also be set with label 2 on this valve rod exposed junction simultaneously, then with locking nut 1 locking that is threaded, so formed transmission connecting structure between handwheel 3 and the valve rod 4, operation handwheel 3 can be with ovable valve stem 4 to rotate.
Form stuffing box between between described valve rod 4 and the valve gap 9, this stuffing box is opened upper end formula structure, in so packing retaining ring 8 and filler 7 all can be packed this stuffing box into successively from top, be provided with trim ring 6 on filler 7 tops, also be provided with the gland nut 5 that is threaded in valve gap 9 tops, can provide downward impacting force by rotating gland nut, be used for trim ring 6, filler 7 and packing retaining ring 8 are compressed; Surface of contact between described filler 7 and the packing retaining ring 8 is designed to the inclined-plane, when compressed by gland nut 5 downwards, this filler 7 and packing retaining ring 8 mutual extrusion expansions make down pressure change lateral pressure into, thereby are connected sealing between formation valve rod 4 and the valve gap 9; Described packing retaining ring 8 bottoms contacts is on the set interior shoulder of valve gap 9 inwalls, and its size can guarantee to remain certain interval between packing retaining ring 8 and the valve rod 4, does not affect the valve rod normal rotation and operates.
This filler gate valve mainly adopts the bar type structure that lifts of packing into from the top down, and it open stuffing box structure that possesses only need pack into according to the order of sequence packing retaining ring 8, filler 7, trim ring 6 compress with gland nut 5 and get final product, and assembly process is very convenient; In the regular maintenance process, only need suitably to regulate the impacting force of gland nut 5, just can reduce the generation of filler gate valve seepage situation; Turn off the filler gate valve and turn on gland nut 5, just can be under valve rod 4 and flashboard 11 effects easily packing retaining ring 8 and filler 7 be ejected and change.
The utility model carries out without fixed design between valve rod 4 and valve gap 9, it can effectively eliminate the nonreversibility of assembling, makes things convenient for the replacing of component, need not to cut off the medium at filler gate valve two ends when maintenance, keep in repair simplyr, convenient, greatly reduced cost of production and increasing the service life.Simultaneously, this filler gate valve profile is similar to the conventional filler gate valve, also holds susceptible to user acceptancely, is beneficial to marketing and uses.
Claims (5)
1. one kind lifts rod-type filler gate valve, comprises the valve body (12) with valve pocket, is provided with in this valve pocket be used to the flashboard that cuts off described valve pocket (11); Described valve body (12) top is provided with the valve gap (9) that is tightly connected, and is provided with in this valve gap that an end connects flashboard (11), the other end stretches out the valve rod (4) that valve gap (9) exposes, and is provided with the handwheel (3) that is in transmission connection at the exposed junction of valve rod; Be provided with stuffing box between described valve rod (4) and the valve gap (9), filler (7) is installed in this stuffing box, it is characterized in that described stuffing box is opened upper end formula structure, be provided with packing retaining ring (8) and the filler (7) of packing into successively from top in this stuffing box, this filler top is provided with trim ring (6), also is provided with the gland nut (5) that is connected to valve gap (9) top.
2. the rod-type filler gate valve that lifts according to claim 1 is characterized in that described filler (7) and the surface of contact of packing retaining ring (8) are the inclined-plane.
3. the rod-type filler gate valve that lifts according to claim 1 is characterized in that described packing retaining ring (8) bottom contacts on the interior shoulder set in valve gap (9).
4. the rod-type filler gate valve that lifts according to claim 1 is characterized in that being provided with gasket seal (10) between described valve gap (9) and the valve body (12).
5. each described rod-type filler gate valve that lifts according to claim 1 ~ 4, it is characterized in that being provided with square shaft between described valve rod (4) exposed junction and the handwheel (3), square hole is in transmission connection, the party's shaft end also is connected with label (2) and locking nut (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597399 CN202884235U (en) | 2012-11-14 | 2012-11-14 | Draw-bar packing gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597399 CN202884235U (en) | 2012-11-14 | 2012-11-14 | Draw-bar packing gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202884235U true CN202884235U (en) | 2013-04-17 |
Family
ID=48075664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597399 Expired - Lifetime CN202884235U (en) | 2012-11-14 | 2012-11-14 | Draw-bar packing gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202884235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042103A (en) * | 2015-09-09 | 2015-11-11 | 上海隆麦机械设备工程有限公司 | Gauge valve special for denitration module system |
| CN114055400A (en) * | 2022-01-13 | 2022-02-18 | 成都成高阀门有限公司 | Sliding bearing assembling tool and assembling method thereof |
-
2012
- 2012-11-14 CN CN 201220597399 patent/CN202884235U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042103A (en) * | 2015-09-09 | 2015-11-11 | 上海隆麦机械设备工程有限公司 | Gauge valve special for denitration module system |
| CN114055400A (en) * | 2022-01-13 | 2022-02-18 | 成都成高阀门有限公司 | Sliding bearing assembling tool and assembling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |
|
| CX01 | Expiry of patent term |