CN202691104U - Variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve - Google Patents
Variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve Download PDFInfo
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- CN202691104U CN202691104U CN 201220229347 CN201220229347U CN202691104U CN 202691104 U CN202691104 U CN 202691104U CN 201220229347 CN201220229347 CN 201220229347 CN 201220229347 U CN201220229347 U CN 201220229347U CN 202691104 U CN202691104 U CN 202691104U
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- resistant double
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Abstract
The utility model relates to the technical field of valve bodies, in particular to a variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve, and solves problems of material blocking, valve chamber clogging, leaking and incapability of normally closing pressure of a conveying system of the conventional double-body gate valve due to a small outlet hole because the discharging ports have same diameters. The variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve comprises a cylinder and a valve body which is fixed with the cylinder, and is characterized in that the valve body is provided with two elliptical flanges which are parallel to each other; an upper valve body and a lower valve body are arranged on the two elliptical flanges respectively; a piston rod of the cylinder is linked to a valve plate control rod; and a valve plate is arranged on one side of the valve plate control rod which faces towards the upper valve body; and a crosspiece is arranged on one side of the valve plate control rod which faces towards the lower valve body; a counter bore is formed in the middle of the crosspiece; and discharging port of the lower valve body is an arched hole. By the arrangement of the crosspiece, overall cost of the valve is largely reduced; the variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve is simple in structure, easy to assemble, dismantle and maintain, flexible in action, high in sealing performance and prolonged in service life; and the valve plate is automatically pressed tightly.
Description
Technical field
The utility model relates to the valve body technical field, particularly the reducing crosspiece formula Pneumatic wear resistant double gate valve in the conveying of all kinds of dust of industry such as a kind of thermal power plant, metallurgy, chemical industry, particle.
Background technique
The industries such as thermal power plant, metallurgy, chemical industry adopt a large amount of double gate valves to carry out the conveying of all kinds of dust, particle, the particularly conveying of high temperature larger particles, double gate valve feeding and discharging bore of the prior art is mostly consistent, go out young, be unfavorable for carrying, easily stuck, valve pocket is easily stifled, and heat-resisting quantity is poor, causes leaking or transporting system can't just normally closed pressure.Be a kind of Pneumatic wear resistant double gate valve of CN201787103U such as patent publication No., comprise the pneumatic actuator assembly, be provided with piston rod in the pneumatic actuator assembly, one end of piston rod is provided with the link with the piston rod coaxial line, be provided with the spring seat vertical with piston rod in the link, the spring seat two ends are respectively equipped with flap, two flaps cooperate with two side valve seats respectively, be provided with the valve circle between two side valve seats, two flaps and spring seat are positioned at valve circle middle part containing space, and piston rod is provided with the connection neck towards an end of pneumatic final controlling element cylinder body.And for example patent announcement number is a kind of wear-resistant parallel double-flashboard gate valve of CN101886705A, feature is that corresponding recessed flashboard and protruding flashboard closed end are provided with the chamber that holds at least recessed flashboard and a stroke of protruding flashboard on the valve body, recessed flashboard is provided with the duct identical with cross section, valve body main passage with protruding flashboard, valve body main passage and duct on recessed flashboard and the protruding flashboard matched correspondingly when recessed flashboard was in full open position with protruding flashboard, and porthole edge is along being close to the sealing surface of valve seat.Because the valve plate of material feeding mouth and discharge port needs simultaneously action, the valve body feeding and discharging bore size of these two kinds of structures or identical, relative material feeding mouth, discharge port is certainly less than normal.
Summary of the invention
The purpose of this utility model is because the feeding and discharging bore is identical in order to solve existing double gate valve, it is little to form oral pore, cause that material is stuck, valve pocket is easily stifled, leak and problem that transporting system can't just normally closed pressure, a kind of reasonable in design is provided, under the condition that does not change basic valve body, discharge port adopts the arched door hole, and the reducing crosspiece formula Pneumatic wear resistant double gate valve that crosspiece cooperates with the arched door hole is set.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of reducing crosspiece formula Pneumatic wear resistant double gate valve, comprise cylinder, with the fixing valve body of cylinder, it is characterized in that described valve body is provided with two oval flanges that are parallel to each other, upside valve body and downside valve body are housed respectively on two oval flanges, the piston rod interlock valve plate control bar of cylinder, and valve plate control bar up side valve body one side be provided with valve plate, valve plate control bar court down side valve body one side is provided with crosspiece, the intermediate portion of crosspiece is provided with counterbore, and the discharge port of downside valve body is the arched door hole.The written or printed documents device adopts the mode of the additional crosspiece balance of open type discharge port, not only effectively improves the conveying of larger particles material, the simultaneously also conveying of suitable dust and other material, the design simplification of structure of horizontal gear component processing method, easily also easily assembling of processing.Valve plate control boom end is provided with elastic mechanism, to valve plate and crosspiece automatic impaction.Valve body is established after two oval flange configuration upside valve bodies and the downside valve body, has just formed an activity space in valve body, and valve plate and crosspiece are mobile to reach the Kai Heguan of feed inlet and outlet in valve body.The discharge port latus rectum in arched door hole is conducive to material stream passed greater than material feeding mouth.
As preferably, the piston rod of described cylinder connects a connecting rod, and connecting rod radially passes valve body interlock valve plate control bar along valve body, and cylinder piston rod and connecting rod junction point are provided with set screw nut.The design consideration gate valve total length of connecting rod designs, or piston rod adopts more piece bushing type piston; The diameter of set screw nut can be used as the run distance caging device of piston rod movement greater than the center hole in the baffle plate.
As preferably, described cylinder body is connected with valve body by the fixing rod that is positioned at around the piston rod, and valve body and connecting rod cooperation place are provided with counterbore, are provided with combination seal in the counterbore, and combination seal pushes up pressure by pressure ring.It is square that the cylinder body cross section adopts, and square four corners position is established respectively fixing rod, and four fixing rods pass behind the baffle plate flange connection of the middle-end of being connected with valve body, to reach the effect of the large intensity of structural stability.
As preferably, described pressure ring is provided with the dish spring, and the dish spring is sleeved on the guide pin bushing and by an end of guide pin bushing location, the endoporus of guide pin bushing cooperates with the crest clearance of connecting rod.Butterfly spring rigidity is large, can prevent overload, and in the constant-voltage equipment of cylinder, the butterfly spring can be used as pressurization device and shockproof configuration.In connecting rod when motion, is take the guide pin bushing endoporus as guiding.
As preferably, the end of described fixing rod is set with baffle plate, forms the vibrating area of dish spring between baffle plate and the valve body.The fixing rod of cylinder body is being designed to the multidiameter shaft shape with the baffle plate cooperation place, and with postive stop baffle, guide pin bushing limits butterfly spring position as the butterfly spring abutment with pressure ring.
As preferably, the arched door hole discharge port of described downside valve body adds poroid that the arc line shaped of below forms, the camber line of below and downside valve body ellipse flange edge line parallel by the arch of upper part.The upper part in arched door hole is and half of the identical circle of material feeding mouth that as width, the lower end is in order to strengthen the discharge port size with the intake port diameter length in lower part both sides, again with the arc line shaped involution, this hole shape structural strength is large, because the below is the upper shed arc, has guaranteed the material proper flow.
As preferably, the counterbore that described crosspiece intermediate portion is provided with is rectangular counterbore or polygonal counterbore.Crosspiece is set to the state vertical with cylinder piston rod, can not rotate during work, and valve plate control bar and crosspiece cooperation place are arranged to cuboid or polygonal body equally, and cuboid and rectangular counterbore can adopt the transition fit form.
As preferably, the length of described crosspiece is greater than the width of arch discharge port, the length of crosspiece and less than the width of the oval endoporus of valve body.Crosspiece is positioned at valve body and does translation when operation.
As preferably, the discharge hole center line of the intake port of described upside valve body and downside valve body is coaxial, valve plate control bar is along being provided with Compress Spring in the axle body of upside valve body intake port center line, the top is equipped with respectively at the two ends of Compress Spring, one of them top offsets with valve plate, and another top offsets with crosspiece.Synchronous when material feeding mouth and discharge port operation, valve plate control bar is the polyhedral that cooperates with crosspiece along axle body one end of valve body intake port center line, and because valve plate is circular, then the other end is made as circular shaft part, Compress Spring can automatic impaction the valve plate side valve body that makes progress, compress simultaneously the downward side valve body of crosspiece.
As preferably, described valve plate and upside valve body fitting surface are provided with wearing layer, and the upside valve body of this fitting surface is provided with seal ring.The setting of wearing layer and seal ring, in opening-closing process, valve plate can produce rotation, grinds and polishing the working life of improving gate valve so that produce between the sealing surface.
The beneficial effects of the utility model are: discharge port sealing valve plate adopts the crosspiece formula, greatly reduces the holistic cost of valve; Simple in structure, easily assembling, dismounting and maintenance; Be active in one's movements, the valve plate automatic impaction, sealing is high, long service life.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the left TV structure schematic representation of the utility model Fig. 1.
Fig. 3 is the local structure for amplifying schematic representation in the N place of the utility model Fig. 1.
Fig. 4 is the local structure for amplifying schematic representation in the M place of the utility model Fig. 1.
Fig. 5 is a kind of valve body structure schematic representation of the present utility model.
Fig. 6 is a kind of downside valve body structure schematic representation of the present utility model.
Among the figure: 1. upside valve body, 2. valve body, 3. seal ring, 4. valve plate, 5. come directly towards, 6. Compress Spring, 7. valve plate control bar, 8. connecting rod, 9. combination seal, 10. pressure ring, 11. dish springs, 12. guide pin bushing, 13. set screw nuts, 14. baffle plates, 15. fixing rod, 16. downside valve bodies, 161. arched door holes, 17. cylinder, 18. hexagonal plugs, 19. crosspieces.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Referring to Fig. 1, Fig. 2, a kind of reducing crosspiece of present embodiment formula Pneumatic wear resistant double gate valve, be provided with cylinder 17, cylinder 17 is connected with valve body 2 by four fixing rods 15, valve body 2 is provided with a counterbore with connecting rod 8 cooperation places, the combination seal 9 that is comprised of graphite and packing is housed in the counterbore, combination seal 9 is suppressed by pressure ring 10, as shown in Figure 4, dish spring 11 is installed on the pressure ring 10, dish spring 11 is sleeved on the guide pin bushing 12 and by an end of guide pin bushing and locates simultaneously, wherein the endoporus of guide pin bushing 12 cooperates with the crest clearance of connecting rod 8, and an one of guide pin bushing is square baffle plate 14 of end suit of fixing rod 15, and the middle part of baffle plate 14 is the through holes with the connecting rod Spielpassung, the piston rod of cylinder 17 connects a connecting rod 8, connecting rod 8 passes valve body 2, connects valve plate control bar 7 again, and piston rod and connecting rod 8 junction points are provided with set screw nut 13, set screw nut 13 is between baffle plate 14 and cylinder 17, and the external diameter of set screw nut 13 is greater than the through hole at baffle plate 14 middle parts.
Referring to Fig. 6, the discharge port of downside valve body 16 is arched door hole 161, and the upper part in arched door hole 161 is and half of the identical circle of material feeding mouth, the both sides of lower part with the intake port diameter length as width, bottom in order to strengthen again the discharge port size, with the arc line shaped involution.
During work, pneumatic actuator control cylinder 17 passes through connecting rod 8 and valve plate control bar 7 drive valve plates 4 and crosspiece 19 along mobile on the rectilinear direction.
Pneumatic actuator is received signal, and cylinder 17 piston rods stretch out, and connecting rod 8 and valve plate control bar 7 drive valve plate 4 and crosspiece 19, move down in rectilinear direction, and this moment, valve plate 4 was closed, and mass transport is closed; Pneumatic actuator is received signal, cylinder 17 piston rod indentations, and connecting rod 8 and valve plate control bar 7 drive valve plate 4 and crosspiece 19, move up in rectilinear direction, and this moment, valve plate 4 was opened, and mass transport begins.
Be provided with Compress Spring 6 in the valve plate control bar 7, spring force makes valve plate 4 press to seal ring 3 all the time, allow again valve plate 4 to move along direction vertically, help to compensate expanding with heat and contract with cold of valve components, and can overcome any economy to the impact of sealing and prevent that granule medium from entering between the sealing surface.
In opening-closing process, valve plate 4 can produce rotation, so that produce grinding, polishing action between valve plate 4 and upside valve body 1 sealing surface.Because the discharge port of downside valve body 16 is arched door hole 161, and passage is had off-centre, when opening the drainage material, can produce eddy current, the material vortex of formation can clean valve cavity voluntarily, and discharge port has adopted the crosspiece formula, the discharging bore is strengthened, more be conducive to drain material.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any structure after the simple transformation of the present utility model is all belonged to protection domain of the present utility model.
Claims (10)
1. reducing crosspiece formula Pneumatic wear resistant double gate valve, comprise cylinder (17), with the fixing valve body (2) of cylinder, it is characterized in that described valve body (2) is provided with two oval flanges that are parallel to each other, upside valve body (1) and downside valve body (16) are housed respectively on two oval flanges, the piston rod interlock valve plate control bar (7) of cylinder (17), and valve plate control bar (7) up side valve body (1) one side be provided with valve plate (4), valve plate control bar (7) down side valve body (16) one sides is provided with crosspiece (19), the intermediate portion of crosspiece (19) is provided with counterbore, and the discharge port of downside valve body (16) is arched door hole (161).
2. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 1, the piston rod that it is characterized in that described cylinder (17) connects a connecting rod (8), connecting rod (8) radially passes valve body interlock valve plate control bar (7) along valve body (2), and cylinder (17) piston rod and connecting rod (8) junction point are provided with set screw nut (13).
3. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 1 and 2, it is characterized in that described cylinder (17) body is connected with valve body (2) by being positioned at piston rod fixing rod (15) on every side, valve body (2) is provided with counterbore with connecting rod (8) cooperation place, be provided with combination seal (9) in the counterbore, combination seal (9) is pressed by pressure ring (10) top.
4. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 3, it is characterized in that described pressure ring (10) is provided with dish spring (11), dish spring (11) is sleeved on guide pin bushing (12) upward and by an end of guide pin bushing location, the endoporus of guide pin bushing (12) cooperates with the crest clearance of connecting rod (8).
5. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 4 is characterized in that the end of described fixing rod (15) is set with baffle plate (14), forms the vibrating area of dish spring (11) between baffle plate (14) and the valve body (2).
6. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 1 and 2, arched door hole (161) discharge port that it is characterized in that described downside valve body (16) adds poroid that the arc line shaped of below forms, the camber line of below and the oval flange edge line parallel of downside valve body (16) by the arch of upper part.
7. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 6 is characterized in that the counterbore that described crosspiece (19) intermediate portion is provided with is rectangular counterbore or polygonal counterbore.
8. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 7 is characterized in that the length of described crosspiece (19) greater than the width of arch discharge port, the length of crosspiece (19) and less than the width of the oval endoporus of valve body (2).
9. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 1 and 2, the discharge hole center line that it is characterized in that the intake port of described upside valve body (1) and downside valve body (16) is coaxial, valve plate control bar (7) is along being provided with Compress Spring (6) in the axle body of upside valve body (1) intake port center line, top (5) is equipped with respectively at the two ends of Compress Spring (6), one of them top (5) offsets with valve plate (4), and another top offsets with crosspiece (19).
10. reducing crosspiece formula Pneumatic wear resistant double gate valve according to claim 1 and 2 is characterized in that described valve plate (4) and upside valve body (1) fitting surface are provided with wearing layer, and the upside valve body (1) of this fitting surface is provided with seal ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229347 CN202691104U (en) | 2012-05-22 | 2012-05-22 | Variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220229347 CN202691104U (en) | 2012-05-22 | 2012-05-22 | Variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202691104U true CN202691104U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220229347 Expired - Lifetime CN202691104U (en) | 2012-05-22 | 2012-05-22 | Variable-diameter crosspiece-type pneumatic wear-resistant double-body gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202691104U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006169A (en) * | 2014-06-12 | 2014-08-27 | 麦科威（昆山）机械有限公司 | Discharging valve of plastic high-speed mixer |
| CN104019267A (en) * | 2014-06-13 | 2014-09-03 | 浙江瑞工控制阀有限公司 | Pneumatic actuator for opening and closing power station boiler deslagging opening gate |
| CN107289178A (en) * | 2017-08-16 | 2017-10-24 | 西诺威阀门控制（苏州）有限公司 | The pneumatic actuator of flat gate valve |
-
2012
- 2012-05-22 CN CN 201220229347 patent/CN202691104U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006169A (en) * | 2014-06-12 | 2014-08-27 | 麦科威（昆山）机械有限公司 | Discharging valve of plastic high-speed mixer |
| CN104019267A (en) * | 2014-06-13 | 2014-09-03 | 浙江瑞工控制阀有限公司 | Pneumatic actuator for opening and closing power station boiler deslagging opening gate |
| CN107289178A (en) * | 2017-08-16 | 2017-10-24 | 西诺威阀门控制（苏州）有限公司 | The pneumatic actuator of flat gate valve |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
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| CX01 | Expiry of patent term |