CN203067911U - Locking device for pneumatic-control discharge valve - Google Patents
Locking device for pneumatic-control discharge valve Download PDFInfo
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- CN203067911U CN203067911U CN 201320058814 CN201320058814U CN203067911U CN 203067911 U CN203067911 U CN 203067911U CN 201320058814 CN201320058814 CN 201320058814 CN 201320058814 U CN201320058814 U CN 201320058814U CN 203067911 U CN203067911 U CN 203067911U
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- gland
- rotating shaft
- pressure arm
- valve
- valve body
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Abstract
The utility model discloses a locking device for a pneumatic-control discharge valve. A piston assembly (12) is slidingly connected in a valve body (9); a gland (13) is fixedly connected with the upper end of the valve body (9); a start-stop assembly is connected with the gland (13), and pushes against the piston assembly (12); an air cylinder assembly (8) is mounted on a side wall of the valve body (9); a piston rod in the air cylinder assembly (8) pushes against a start-stop mechanism; a torsional spring (6) is arranged between the start-stop mechanism and the gland (13), and mounted on the gland (13); one end of the torsional spring (6) is connected with the start-stop mechanism in a clamping manner; and the other end of the torsional spring (6) pushes against the gland (13). With the adoption of the structure, a rotating shaft and a pressing arm are compressed tightly by utilizing torsion of the torsional spring between the start-stop mechanism and the gland, and looseness among the mechanisms is avoided, so that untight closing of the valve due to transportation vibration cannot be generated, and a safety accident due to gas leakage is avoided.
Description
Technical field
The utility model relates to the technical field of valve, specifically is the locking device of the gas control dispensing valve in a kind of fire-fighting system peculiar to vessel.
Background technique
Gas control dispensing valve is a kind of gas control quick opening valve, is selector valve again, is mainly used in the equipment of fire-suppressant gas when long-distance transport in the fire-fighting system.The gas control dispensing valve of prior art comprises valve body, piston assembly, pressure cap assembly, cylinder assembly, opening/closing mechanism and position limit switch assembly, wherein, opening/closing mechanism comprises crank pivoted arm, handle, pressure arm and holds out against screw, the pressure cap assembly is connected the valve body upper end, the crank pivoted arm is hinged on the pressure cap by rotating shaft and lower end and the cylinder assembly of crank pivoted arm push against, cylinder assembly is installed on the valve body, one end of pressure arm and pressure cap member hinges, the other end and rotating shaft push against or throw off, the intermediate thread of pressure arm is connected with and holds out against screw, and the lower end and the piston assembly that hold out against screw push against.Piston assembly is compacted pinning at ordinary times, that is to say that valve is in closed condition, when breaking out of fire, after instruction is assigned by system, cylinder assembly backs down the crank pivoted arm, the crank pivoted arm drives the rotating shaft rotation, and after rotating shaft and pressure arm were thrown off, the piston assembly of pressure arm lower end obtained discharging, under the effect of gas pressure, valve is opened, and fire-suppressant gas enters from suction port, flows out from the air outlet.
But there is following shortcoming in the gas control dispensing valve of above-mentioned this structure:
1) in long-distance transport, during such as shipping, winnow with a dustpan and when shaking in the valve of gas cylinder and installation thereof can be subjected to stormy waves, road in transportation process mountain peak, hold out against screw and can produce loosening phenomenon, the mechanism that originally holds out against mutually is such as rotating shaft and pressure arm, also can produce the gap and become flexible, thereby make valve closing not tight, cause gas to leak, have potential safety hazard;
2) simultaneously, owing to do not have interaction relation between pressure arm and the crank pivoted arm, when fire extinguishing finishes or needs throttle down, after needs reset the crank pivoted arm earlier and pin, hold out against screw-driving with what inner hexagon spanner will become flexible again, push down piston assembly, make valve closing; Therefore, troublesome poeration, in case and the scene can not find inner hexagon spanner or when not having other cutfits, valve can not be closed, valve just can not normally use;
3) in addition, adjust every now and then and tighten owing to hold out against the loosening of screw, certainly will cause the wearing and tearing that hold out against screw and pressure arm, thereby shorten the working life of valve.
The model utility content
Technical problem to be solved in the utility model is, it is loosening to provide a kind of each component that prevent from discharging valve to produce in transportation process, thereby reduces potential potential safety hazard, guarantee the locking device of gas control dispensing valve in the working life normal use, that can prolong valve of valve.
For solving the problems of the technologies described above, the locking device of the gas control dispensing valve that the utility model provides, comprise valve body, piston assembly, gland, opening/closing mechanism, position limit switch and cylinder assembly, the suction port and the air outlet that have internal communication on the described valve body, piston assembly is slidingly connected in the valve body, gland is fixedly connected on the valve body upper end, the keying assembly is connected on the gland and with piston assembly and holds out against, position limit switch is installed in side of valve body, cylinder assembly is installed in another sidewall of valve body and piston rod and the opening/closing mechanism in the cylinder assembly pushes against, also be provided with torsion spring between described opening/closing mechanism and the gland, torsion spring is installed on the gland, one end of torsion spring and opening/closing mechanism clamping, the other end and gland push against.
Described opening/closing mechanism comprises that crank pivoted arm, rotating shaft, pressure arm, interior hexagonal hold out against screw and handle, fixedlys connected with rotating shaft in the upper end of described crank pivoted arm, and the piston rod of lower end and cylinder assembly pushes against; One end of pressure arm is rotatably connected on an end of gland by bearing pin, and rotating shaft is rotatably connected on the other end of gland, and the other end of rotating shaft and pressure arm pushes against; Hexagonal holds out against screw thread and is connected the pressure arm neutral position in described, and interior hexagonal holds out against the lower end of screw and the piston rod in the piston assembly and holds out against or throw off; Described handle is fixedly connected in the rotating shaft.
Be connected with positioning shaft on the gland between described bearing pin and the rotating shaft, described torsion spring set is connected on the positioning shaft, and an end and the gland of torsion spring push against, and the other end is connected on the crank pivoted arm.
The other end of described rotating shaft and pressure arm pushes against and refers to, the cross section of the linkage section of rotating shaft and pressure arm is semicircle, and the linkage section of pressure arm and rotating shaft has step surface, and this semicircular arc section and step surface push against.
Also be provided with spring sheet between described pressure arm and the gland, an end of this spring sheet is fixedlyed connected with gland, the perk that the other end pushes against for the lower end surface with pressure arm.
After adopting above structure, the utility model compared with prior art has the following advantages:
1) since between opening/closing mechanism and gland by torsion spring and utilize the torsion of torsion spring that rotating shaft and pressure arm are compressed tightly, thereby hexagonal holds out against screw to the pressure of piston assembly in increasing, make to avoid between each mechanism producing and become flexible, thereby make the valve in the valve body can not produce the phenomenon that is not closed completely owing to the vibrations of transportation, and then the security incident of avoiding the gas leakage to cause take place.
2) simultaneously, after having increased torsion spring, make between pressure arm and the crank pivoted arm interaction relation has been arranged, when fire extinguishing finishes or needs throttle down, as long as press pressure arm, by the active force of torsion spring, the crank pivoted arm is resetted, make valve closing, need not the action that holds out against screw-driving that to become flexible with inner hexagon spanner again; Therefore, simple to operation, need not six interior angle spanners or other cutfits;
3) in addition, because hexagonal holds out against screw in need not often to screw, therefore reduce the wearing and tearing of correlated parts, prolonged the working life of valve;
4) setting of spring sheet, the end that pressure arm is cooperated with rotating shaft have the individual active force that makes progress in advance, as long as rotating shaft one is rotated, pressure arm will upwards lift under the effect of spring force, makes the action of opening valve more flexible, laborsaving.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model gas control dispensing valve.
Fig. 2 is the right TV structure schematic representation of Fig. 1.
Fig. 3 is the plan structure schematic representation of Fig. 1.
Fig. 4 is that the A-A direction is revolved structural representation after turning 90 degrees among Fig. 3.
Wherein: 1, rotating shaft; 2, pressure arm; 3, interior hexagonal holds out against screw; 4, positioning shaft; 5, handle; 6, torsion spring; 7, crank pivoted arm; 8, cylinder assembly; 9, valve body; 10, suction port; 11, air outlet; 12, piston assembly; 13, gland; 14, bearing pin; 15, position limit switch; 16, spring sheet.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.
By the structural representation of the locking device of the utility model gas control dispensing valve of Fig. 1～shown in Figure 4 as can be known, it comprises valve body 9, piston assembly 12, gland 13, opening/closing mechanism, position limit switch 15 and cylinder assembly 8, the suction port 10 and air outlet 11 that have internal communication on the described valve body 9, piston assembly 12 is slidingly connected in the valve body 9, gland 13 is fixedly connected on valve body 9 upper ends, the keying assembly is connected on the gland 13 and with piston assembly 12 and holds out against, position limit switch 15 is installed in the side of valve body 9, and cylinder assembly 8 is installed in another sidewall of valve body 9 and piston rod and the opening/closing mechanism in the cylinder assembly 8 pushes against.Also be provided with torsion spring 6 between described opening/closing mechanism and the gland 13, torsion spring 6 is installed on the gland 13, an end of torsion spring 6 and opening/closing mechanism clamping, and the other end and gland 13 push against.
Described opening/closing mechanism comprises that crank pivoted arm 7, rotating shaft 1, pressure arm 2, interior hexagonal hold out against screw 3 and handle 5, fixedlys connected with rotating shaft 1 in the upper end of described crank pivoted arm 7, and the piston rod of lower end and cylinder assembly 8 pushes against.One end of pressure arm 2 is rotatably connected on an end of gland 13 by bearing pin 14, and rotating shaft 1 is rotatably connected on the other end of gland 13, and the other end of rotating shaft 1 and pressure arm 2 pushes against.Hexagonal holds out against screw 3 and is threaded in pressure arm 2 neutral positions in described, and interior hexagonal holds out against the lower end of screw 3 and the piston rod in the piston assembly 12 and holds out against or throw off.Described handle 5 is fixedly connected in the rotating shaft 1.
Be connected with positioning shaft 4 on the gland 13 between described bearing pin 14 and the rotating shaft 1, described torsion spring 6 is socketed on the positioning shaft 4, and an end and the gland 13 of torsion spring 6 push against, and the other end is connected on the crank pivoted arm 7.
The other end of described rotating shaft 1 and pressure arm 2 pushes against and refers to, rotating shaft 1 is semicircle with the cross section of the linkage section of pressure arm 2, and pressure arm 2 has step surface with the linkage section of rotating shaft 1, and this semicircular arc section and step surface push against.
Also be provided with spring sheet 16 between described pressure arm 2 and the gland 13, an end of this spring sheet 16 is fixedlyed connected with gland 13, the perk that the other end pushes against for the lower end surface with pressure arm 2.
Working procedure of the present utility model is as follows: under the normal state, piston assembly 12 is held out against screw 3 by interior hexagonal and compresses pinning, and this moment, valve was in closed condition, that is to say that the semi-circular segments at rotating shaft 1 middle part this moment pushes down the step surface of pressure arm 2; When breaking out of fire, under the instruction of system, cylinder assembly 8 actions make crank pivoted arm 7 drive rotating shaft 1 and rotate counterclockwise, after the semi-circular segments at 1 middle part of rotating shaft is at this moment rotated the step part of pressure arm 2 is upwards lifted under the effect of spring sheet 16, therefore, the interior hexagonal at pressure arm 2 middle parts held out against upwards lift after screw 3 is thrown off piston assembly 12 simultaneously, this moment, piston assembly 12 was released into free state, that is to say that the valve in the valve body 9 is opened, the fire-suppressant gas that has pressure enters from suction port 10, back down 11 outflows from the air outlet of piston assembly 12 backs, carry out fire-fighting work.In addition, when the action of not adopting cylinder assembly to back down, also can adopt manual mode, namely pull handle 5 counterclockwise, rotating shaft 1 be rotated, the same purpose that realizes opening valve.
After fire extinguishing finishes, only need press down pressure arm 2 one ends that contact with rotating shaft 1 gently, make pressure arm 2 that downward action trend be arranged, under the effect of the power of torsion spring 6, make crank pivoted arm 7 be returned to reset condition rapidly, the interior hexagonal of pressure arm 2 drives this moment holds out against screw 3 and resets, with valve closing.
Claims (5)
1. the locking device of gas control dispensing valve, comprise valve body (9), piston assembly (12), gland (13), opening/closing mechanism, position limit switch (15) and cylinder assembly (8), the suction port (10) and air outlet (11) that have internal communication on the described valve body (9), piston assembly (12) is slidingly connected in the valve body (9), gland (13) is fixedly connected on valve body (9) upper end, the keying assembly is connected gland (13) and goes up and hold out against with piston assembly (12), position limit switch (15) is installed in the side of valve body (9), cylinder assembly (8) is installed in another sidewall of valve body (9) and piston rod and the opening/closing mechanism in the cylinder assembly (8) pushes against, it is characterized in that: also be provided with torsion spring (6) between described opening/closing mechanism and the gland (13), torsion spring (6) is installed on the gland (13), one end of torsion spring (6) and opening/closing mechanism clamping, the other end and gland (13) push against.
2. gas control according to claim 1 discharges the locking device of valve, it is characterized in that: described opening/closing mechanism comprises that crank pivoted arm (7), rotating shaft (1), pressure arm (2), interior hexagonal hold out against screw (3) and handle (5), fixedly connected with rotating shaft (1) in the upper end of described crank pivoted arm (7), the piston rod of lower end and cylinder assembly (8) pushes against; One end of pressure arm (2) is rotatably connected on an end of gland (13) by bearing pin (14), and rotating shaft (1) is rotatably connected on the other end of gland (13), and the other end of rotating shaft (1) and pressure arm (2) pushes against; Hexagonal holds out against screw (3) and is threaded in pressure arm (2) neutral position in described, and interior hexagonal holds out against the lower end of screw (3) and the piston rod in the piston assembly (12) and holds out against or throw off; Described handle (5) is fixedly connected in the rotating shaft (1).
3. gas control according to claim 2 discharges the locking device of valve, it is characterized in that: be connected with positioning shaft (4) on the gland (13) between described bearing pin (14) and the rotating shaft (1), described torsion spring (6) is socketed on the positioning shaft (4), one end of torsion spring (6) and gland (13) push against, and the other end is connected on the crank pivoted arm (7).
4. gas control according to claim 2 discharges the locking device of valve, it is characterized in that: the other end of described rotating shaft (1) and pressure arm (2) pushes against and refers to, rotating shaft (1) is semicircle with the cross section of the linkage section of pressure arm (2), pressure arm (2) has step surface with the linkage section of rotating shaft (1), and this semicircular arc section and step surface push against.
5. gas control according to claim 2 discharges the locking device of valve, it is characterized in that: also be provided with spring sheet (16) between described pressure arm (2) and the gland (13), one end of this spring sheet (16) is fixedlyed connected with gland (13), the perk that the other end pushes against for the lower end surface with pressure arm (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320058814 CN203067911U (en) | 2013-01-30 | 2013-01-30 | Locking device for pneumatic-control discharge valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320058814 CN203067911U (en) | 2013-01-30 | 2013-01-30 | Locking device for pneumatic-control discharge valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067911U true CN203067911U (en) | 2013-07-17 |
Family
ID=48766695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320058814 Expired - Fee Related CN203067911U (en) | 2013-01-30 | 2013-01-30 | Locking device for pneumatic-control discharge valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117345934A (en) * | 2023-12-05 | 2024-01-05 | 长春融成智能设备制造股份有限公司 | Ball valve closing device |
-
2013
- 2013-01-30 CN CN 201320058814 patent/CN203067911U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117345934A (en) * | 2023-12-05 | 2024-01-05 | 长春融成智能设备制造股份有限公司 | Ball valve closing device |
| CN117345934B (en) * | 2023-12-05 | 2024-02-09 | 长春融成智能设备制造股份有限公司 | Ball valve closing device |
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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: 20130717 Termination date: 20180130 |