CN116085508B - Locking device for heat-insulating fireproof valve - Google Patents
Locking device for heat-insulating fireproof valve Download PDFInfo
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- CN116085508B CN116085508B CN202310189113.XA CN202310189113A CN116085508B CN 116085508 B CN116085508 B CN 116085508B CN 202310189113 A CN202310189113 A CN 202310189113A CN 116085508 B CN116085508 B CN 116085508B
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- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
- F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The application relates to the field of fire valves and discloses a locking device for a heat insulation type fire valve, which comprises blades rotatably installed in a valve body and an actuator for rotating the blades, wherein storage boxes are symmetrically arranged at the top of an inner cavity of the valve body, each storage box comprises a vertical plate vertically fixed at the top of the inner cavity of the valve body, a movable plate parallel to the vertical plate, a hinged bottom plate hinged to the bottom edge of Yu Liban and clamped with the movable plate, and an end plate fixedly connected with the end of Yu Liban, the movable plates in the two storage boxes face each other, a rotating bar is horizontally arranged between the two movable plates, the rotating bar is rotatably arranged at the top of the inner cavity of the valve body, a linkage mechanism is arranged between the rotating bar and a rotating shaft I for driving the blades to rotate in the actuator, and a feeding hole communicated with the storage box is formed in the top of the valve body and used for conveying fire extinguishing dry powder into the storage box. The application can disperse the fire-extinguishing dry powder in the storage box into the valve body while closing the blade, thereby improving the fire-preventing and fire-extinguishing effect.
Description
Technical Field
The application relates to the field of fire valves, in particular to a locking device for a heat-insulating fire valve.
Background
In order to prevent the spread of fire and high temperature toxic smoke through the ductwork in the event of a fire, it is necessary to provide fire protection valves on the ductwork of the ventilation system. The current fire-proof valve mainly comprises a valve body, a blade for sealing the valve body, an actuator for driving the blade to rotate and a temperature-sensing fusing metal. When the temperature reaches the fusing temperature of the temperature-sensitive fusing metal, the metal is fused, and at the moment, the actuator can operate and drive the blades in the valve body to rotate, so that the blades seal the valve body. In order to enhance the heat insulation effect, the periphery of the valve body is often wrapped with heat insulation materials.
However, in the process of implementing the related technical scheme, at least the following technical problems are found: at present, the sealing in the valve body is generally realized by closing the blades, but when a fire enters the valve body, the blades only have the effect of preventing the fire from spreading along the pipeline, so that the fire in the valve body cannot be extinguished in time, and the fireproof effect is to be improved.
Disclosure of Invention
The application provides the locking device for the heat-insulating fireproof valve, which solves the technical problem that in the prior art, the blades only have the effect of preventing the fire from spreading along the pipeline, and the fire in the valve body cannot be extinguished in time.
The application provides a locking device for a heat insulation type fireproof valve, which comprises blades rotatably installed in a valve body and an actuator for rotating the blades, wherein storage boxes for storing fire extinguishing dry powder are symmetrically arranged at the top of an inner cavity of the valve body, each storage box comprises a vertical plate vertically fixed at the top of the inner cavity of the valve body, a movable plate parallel to the vertical plate, a hinged bottom plate hinged to the bottom edge of the vertical plate and connected with the movable plate in a clamping mode, end plates fixedly connected to the end parts of the vertical plate, movable plates in the two storage boxes face each other, rotary strips are horizontally arranged between the two movable plates and are rotatably arranged at the top of the inner cavity of the valve body, the length of each rotary strip is larger than the distance between the movable plates at two sides, a linkage mechanism is arranged between each rotary strip and one rotary shaft for driving the blades in the actuator, and a feeding hole communicated with the storage box is formed in the top of the valve body and used for conveying the fire extinguishing dry powder into the storage boxes.
Further, a plurality of elastic sheets are fixedly connected between the vertical plate and the movable plate, the elastic sheets are uniformly distributed along the length direction of the vertical plate, and fire extinguishing dry powder is placed between two adjacent elastic sheets and between the adjacent elastic sheets and the end plate.
Further, a spring is fixedly connected between one side wall of the vertical plate far away from the moving plate and the bottom surface of the hinged bottom plate; the movable plate is far away from a side wall of the vertical plate, a limiting hook which is inclined upwards towards the side far away from the movable plate is fixedly connected to the side wall of the movable plate, and a hook which is hung on the limiting hook is fixedly connected to the edge of the hinged bottom plate far away from a side edge of the vertical plate.
Further, a side of the end at two ends of the rotating bar is provided with an arc surface section, the arc surface section is outwards protruded, the arc surface sections at two ends are symmetrical in center, the top surface of the rotating bar is provided with an arc groove along the arc surface section, a tooth is formed on one side wall of the arc groove, a gear meshed with the tooth is horizontally placed in the arc groove, an arc hole is formed in the bottom of the arc groove, a vertical rod penetrating through the arc hole is fixedly connected to the bottom surface of the gear, a plurality of fan blades are vertically fixedly connected to the peripheral surface of the vertical rod, an extension rod is fixedly connected to the top surface of the gear, a telescopic rod is arranged at the top of the extension rod in a rotating mode, the other end of the telescopic rod is rotatably arranged at the top of the inner cavity of the valve body, and the gear in a rotating state moves and rotates in the arc groove under the limit of the telescopic rod.
Further, the top cover of the storage box on one side of the rotating bar is provided with a top cover fixedly connected to the top edge of the vertical plate, a space is reserved between the top cover and the top surface of the inner cavity of the valve body, the top cover is fixedly connected with a connecting pipe communicated with the feeding hole at the top of the valve body and the inner cavity of the storage box, and one end, far away from the gear, of the telescopic rod is rotatably arranged between the top cover and the top of the valve body.
Further, the second rotating shaft of the rotating bar extends out of the valve body, the linkage mechanism comprises a first worm coaxially connected with the first rotating shaft, a first worm wheel meshed with the first worm wheel, a first transmission rod coaxially connected with the worm wheel and horizontally rotated and arranged on the valve body, a second worm coaxially connected with the first transmission rod and far away from one end of the first worm wheel, a second worm wheel meshed with the second worm wheel, a second transmission rod coaxially connected with the second worm wheel and horizontally rotated and arranged on the valve body, a third worm coaxially connected with the second transmission rod and far away from one end of the second worm wheel, and a third worm wheel coaxially connected with the second rotating shaft, and the third worm wheel is meshed with the third worm wheel in a three-phase manner.
Further, a sealing plug plugged into the feeding hole is arranged on the outer wall of the valve body.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
1. due to the adoption of the linkage mechanism, the rotating bar can be driven to rotate when the actuator runs, the storage box can be opened by the rotating bar, and the fire extinguishing dry powder in the storage box can scatter downwards and can extinguish fire in the valve body, so that the fire is prevented from continuously spreading along the pipeline.
2. Because the rotary strip with the gear is adopted, when the rotary strip rotates, the gear can move and rotate in the arc-shaped groove under the limit of the telescopic rod, so that the fan on the vertical rod can be driven to rotate, and the fire extinguishing dry powder can be further dispersed by the rotation of the fan, so that the fire extinguishing dry powder can be dispersed at various positions in the valve body in a large area, and the fire extinguishing effect on the flame in the valve body is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a fire damper according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a valve body in an embodiment of the present application, primarily illustrating the internal configuration of the valve body;
FIG. 3 is a view showing the construction of a storage case according to an embodiment of the present application;
FIG. 4 is an enlarged schematic view of portion A of FIG. 3, primarily illustrating the configuration of the hooks and spacing hooks;
FIG. 5 is a construction of a rotating bar in an embodiment of the application;
FIG. 6 is a schematic view of another state of the case and the rotating bar of FIG. 4;
FIG. 7 is a schematic view of a portion of the top of FIG. 1, primarily illustrating the configuration of the linkage mechanism;
in the figure: 1. a valve body; 101. a feed hole; 102. a sealing plug; 2. a blade; 3. an actuator; 301. a first rotating shaft; 4. fusing the metal strip; 5. a storage box; 51. a vertical plate; 52. a moving plate; 521. a limit hook; 53. a hinged bottom plate; 531. a hook; 54. an end plate; 55. an elastic sheet; 56. a spring; 501. a top cover; 502. a connecting pipe; 6. rotating the strip; 601. a second rotating shaft; 61. an arc surface section; 62. an arc-shaped groove; 63. teeth; 64. a gear; 65. an arc-shaped hole; 66. a vertical rod; 67. a fan blade; 68. an extension rod; 69. a telescopic rod; 7. a linkage mechanism; 71. a first worm; 72. a first worm wheel; 73. a transmission rod I; 74. a second worm; 75. a second worm wheel; 76. a transmission rod II; 77. a third worm; 78. and a third worm gear.
Detailed Description
In order to better understand the technical scheme of the present application, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, a locking device for an insulated fire damper includes a blade 2, an actuator 3, a fuse metal strip 4, a storage box 5, a rotating strip 6, and a linkage 7. The blades 2 are rotatably arranged in the inner cavity of the valve body 1, a plurality of blades 2 can be arranged according to the size of the valve body 1, and the blades 2 are connected through connecting rods, so that each blade 2 rotates synchronously; the actuator 3 is arranged on the outer wall of the valve body 1, a first rotating shaft 301 in the actuator 3 penetrates through the valve body 1 and is coaxially connected with the shaft of one blade 2, and the operation of the actuator 3 can drive the blade 2 to rotate so that the blade 2 can be opened and closed; the fusing metal strip 4 is arranged in the valve body 1 and is connected with the actuator 3, and when the fusing metal strip 4 reaches the fusing temperature, fusing can occur, and the actuator 3 can be triggered to operate; the two storage boxes 5 are arranged, the two storage boxes 5 are positioned on one side of the blade 2 close to the fusing metal strip 4, the two storage boxes 5 are arranged in parallel, and the length direction of the storage boxes 5 is perpendicular to the flow direction of the air flow in the valve body 1; the rotating strip 6 is horizontally arranged and positioned at the middle position between the two storage boxes 5, and the rotating strip 6 is rotatably arranged on the top surface of the inner cavity of the valve body 1; the linkage mechanism 7 is installed on the outer wall of the valve body 1, and the linkage mechanism 7 is used for driving the rotation bar 6 to rotate by rotating the first rotary shaft 301 of the actuator 3.
Referring to fig. 3, the storage box 5 includes a standing plate 51, a moving plate 52, a hinge base plate 53, an end plate 54, an elastic sheet 55, and a spring 56. The vertical plate 51 is a strip-shaped plate, the vertical plate 51 is vertically arranged, and the length direction of the vertical plate 51 is vertical to the flow direction of the air flow in the valve body 1; the movable plates 52 are strip-shaped plates, the movable plates 52 are vertically arranged, the movable plates 52 are parallel to the vertical plates 51, the length direction of the movable plates 52 is consistent with the length direction of the vertical plates 51, and the movable plates 52 in the storage boxes 5 on two sides are arranged face to face; the hinged bottom plate 53 is a strip-shaped plate, the length direction of the hinged bottom plate 53 is consistent with the length direction of the vertical plate 51, and one side edge of the hinged bottom plate 53 is hinged on the bottom edge of the vertical plate 51; the end plates 54 are two, the two end plates 54 are fixedly connected to the two ends of the vertical plate 51 respectively, and the end plates 54 are used for sealing the end parts of the storage boxes 5; the elastic sheet 55 is fixedly connected between the vertical plate 51 and the moving plate 52, and the elastic sheet 55 is provided with a plurality of sheets and is uniformly distributed along the length direction of the vertical plate 51; the springs 56 are fixedly connected between one side of the vertical plate 51 far away from the movable plate 52 and the lower surface of the hinged bottom plate 53, and three springs 56 are arranged, wherein two springs 56 are respectively positioned at two ends of the vertical plate 51, and the other spring is positioned in the middle of the vertical plate 51.
Referring to fig. 3 and 4, a limiting hook 521 inclined upward toward a side far from the moving plate 52 is fixedly connected to a side wall of the moving plate 52 far from the vertical plate 51, and three limiting hooks 521 on the moving plate 52 may be provided, two of which are respectively located at both ends of the moving plate 52, and the other one is located at the middle of the moving plate 52. The edge of the hinged bottom plate 53 far away from one side edge of the vertical plate 51 is fixedly connected with hooks 531 hung on the limiting hooks 521, and the hooks 531 can be provided with three hooks and respectively correspond to the limiting hooks 521. The hinged bottom plate 53 is swung up to be horizontal, and the hooks 531 on the hinged bottom plate 53 are hung on the limit hooks 521 of the moving plate 52, so that the storage box 5 is in a closed state, when the moving plate 52 is pushed to the vertical plate 51, the limit hooks 521 are separated from the hooks 531, and under the action of the springs 56, the hinged bottom plate 53 is swung down rapidly, so that the storage box 5 is in an open state.
Referring to fig. 2 and 3, a feed hole 101 communicating with the storage box 5 is provided at the top of the valve body 1, and the feed hole 101 is provided between two adjacent elastic sheets 55 and above between the elastic sheet 55 and the end plate 54. The top of the storage box 5 close to the blade 2 in the two storage boxes 5 is spaced from the top of the inner cavity of the valve body 1, the top edge of the vertical plate 51 of the storage box 5 far away from the blade 2 is fixedly connected to the top of the inner cavity of the valve body 1, the top edge of the vertical plate 51 of the storage box 5 close to the blade 2 is fixedly connected with a top cover 501, and a connecting pipe 502 communicated between the feeding hole 101 and the inner cavity of the storage box 5 is fixedly connected to the top cover 501. The outer wall of the valve body 1 is provided with a sealing plug 102 plugged into the feeding hole 101, and the feeding hole 101 can be sealed by using the sealing plug 102. An operator can open the sealing plug 102 and can deliver the dry fire extinguishing powder into the storage box 5 through the feed hole 101.
Referring to fig. 3 and 5, the second rotary shaft 601 of the rotary bar 6 extends out of the valve body 1, one side of the end of the two ends of the rotary bar 6 is provided with an arc surface section 61, the arc surface sections 61 are protruded outwards, the arc surface sections 61 at the two ends are centrosymmetric with the rotation center of the rotary bar 6, the corresponding arc surface sections 61 in the rotary bar 6 are concave arc surfaces, the end surfaces at the two ends of the rotary bar 6 are rounded, and during the rotation process of the rotary bar 6, the end of the arc surface section 61 of the rotary bar 6, which is far from the center end of the rotary bar 6, pushes the moving plate 52 to move towards the vertical plate 51 (as shown in fig. 6). The top surface of rotatory strip 6 has seted up arc wall 62 along arc surface section 61, the shaping has tooth 63 on the lateral wall of arc wall 62, the gear 64 with tooth 63 meshing has been put to the level in the arc wall 62, arc hole 65 has been seted up to the tank bottom of arc wall 62, the bottom surface rigid coupling of gear 64 has pole setting 66 that passes arc hole 65, the perpendicular rigid coupling has a plurality of fan blades 67 on the global of pole setting 66, the top surface rigid coupling of gear 64 has extension pole 68, the top rotation of extension pole 68 is provided with telescopic link 69, the one end that extension pole 68 was kept away from to telescopic link 69 is located the top of top cap 501, the one end that telescopic link 69 is located the top cap 501 rotates and sets up between valve body 1 inner chamber top and top cap 501. When the rotating bar 6 rotates, the gear 64 can move and rotate in the arc-shaped groove 62 under the limit of the telescopic rod 69, so that the fan 67 on the upright 66 can be driven to rotate.
Referring to fig. 7, the linkage mechanism 7 includes a first worm 71, a first worm wheel 72, a first transmission rod 73, a second worm 74, a second worm wheel 75, a second transmission rod 76, a third worm 77, and a third worm wheel 78. The first worm 71 is coaxially connected to the first rotary shaft 301 of the actuator 3; the two ends of the first transmission rod 73 and the second transmission rod 76 are respectively provided with a connecting seat connected to the outer wall of the valve body 1, the first transmission rod 73 and the second transmission rod 76 are respectively and horizontally arranged on the connecting seats in a rotating way, and the first transmission rod 73 and the second transmission rod 76 are mutually vertical; the first worm wheel 72 is coaxially connected to the end of one end of the first transmission rod 73, and the first worm wheel 72 is meshed with the first worm 71; the worm screw 74 is coaxially connected to the end part of the first transmission rod 73 far away from one end of the first worm wheel 72; the worm wheel II 75 is coaxially connected to the end part of one end of the transmission rod II 76, and the worm wheel II 75 is meshed with the worm II 74; the third worm 77 is coaxially connected to the end part of the second transmission rod 76, which is far away from one end part of the second worm wheel 75; the third worm wheel 78 is coaxially connected to the second rotary shaft 601 of the rotary bar 6, and the third worm wheel 78 is meshed with the third worm 77.
The actuator 3 operates to drive the first rotating shaft 301 to rotate, the first rotating shaft 301 drives the first worm 71 to rotate, the first worm 71 drives the first worm wheel 72 to rotate, the first worm wheel 72 drives the first transmission rod 73 to rotate, the first transmission rod 73 drives the second worm 74 to rotate, the second worm 74 drives the second worm wheel 75 to rotate, the second worm wheel 75 drives the second transmission rod 76 to rotate, the second transmission rod 76 drives the third worm 77 to rotate, the third worm 77 drives the third worm wheel 78 to rotate, the third worm wheel 78 drives the second rotating shaft 601 to rotate, and the second rotating shaft 601 drives the rotating bar 6 to rotate, so that under the action of the linkage mechanism 7, the rotating bar 6 can be driven to rotate when the actuator 3 operates.
The application can explain its functional principle by the following modes of operation:
when the fusing metal strip 4 reaches the fusing temperature and is fused, the actuator 3 is triggered to operate, under the action of the linkage mechanism 7, the actuator 3 operates to drive the rotating strip 6 to rotate, the rotating strip 6 rotates to push the moving plate 52 to move to one side of the vertical plate 51, so that the limiting hooks 521 are separated from the hooks 531, under the action of the springs 56, the hinged bottom plate 53 can swing rapidly downwards, so that the storage box 5 can be opened, at the moment, the fire extinguishing dry powder in the storage box 5 can scatter downwards, and in the moving process of the moving plate 52 to the vertical plate 51, the elastic sheet 55 is extruded, the elastic sheet 55 can deform, the fire extinguishing dry powder in the storage box 5 can be sprung out, the scattering area of the fire extinguishing dry powder is increased, in addition, when the rotating strip 6 rotates, the limiting lower gear 64 of the telescopic rod 69 can move and rotate in the arc-shaped groove 62, so that the fan 67 on the vertical rod 66 can be driven to rotate, the fan 67 can further scatter the dry powder in various positions in the 1, the fire extinguishing pipe can be greatly scattered, the fire extinguishing effect can be realized, and the fire extinguishing pipe can be continued in time, and the fire extinguishing pipe can be continued to extinguish fire in the 1.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications according to the technical scheme and the concept of the present application within the scope of the present application.
Claims (7)
1. The locking device for the heat-insulating fireproof valve comprises a blade (2) rotatably installed in a valve body (1) and an actuator (3) for rotating the blade (2), and is characterized in that a storage box (5) for storing fire extinguishing dry powder is symmetrically arranged at the top of an inner cavity of the valve body (1), the storage box (5) comprises a vertical plate (51) vertically fixed at the top of the inner cavity of the valve body (1), a moving plate (52) parallel to the vertical plate (51), a hinged bottom plate (53) hinged to the bottom edge of the vertical plate (51) and clamped with the moving plate (52), an end plate (54) fixedly connected to the end of the vertical plate (51), two moving plates (52) in the storage box (5) face each other, a rotating bar (6) is horizontally arranged between the two moving plates (52), the rotating bar (6) is rotatably arranged at the top of the inner cavity of the valve body (1), the length of the rotating bar (6) is larger than the distance between the moving plates (52) at two sides, a linkage mechanism (301) is arranged between the rotating bar (6) and the blade (3) and the top of the valve body (1), the feeding hole (101) is used for conveying the fire extinguishing dry powder into the storage box (5).
2. The locking device for the heat-insulating fireproof valve according to claim 1, wherein a plurality of elastic sheets (55) are fixedly connected between the vertical plate (51) and the movable plate (52), the elastic sheets (55) are uniformly distributed along the length direction of the vertical plate (51), and fire extinguishing dry powder is placed between two adjacent elastic sheets (55) and between the adjacent elastic sheets (55) and the end plate (54).
3. A locking device for a fire protection valve according to claim 1, characterized in that a spring (56) is fixedly connected between a side wall of the vertical plate (51) far away from the moving plate (52) and the bottom surface of the hinged bottom plate (53); the movable plate (52) is far away from a side wall of the vertical plate (51), a limiting hook (521) which is inclined upwards towards one side far away from the movable plate (52) is fixedly connected to the side wall of the movable plate, and a hook (531) which is hung on the limiting hook (521) is fixedly connected to the edge of the hinged bottom plate (53) far away from one side edge of the vertical plate (51).
4. The locking device for the heat-insulating fireproof valve according to claim 1, wherein one side surface of the end parts at two ends of the rotating strip (6) is provided with arc surface sections (61), the arc surface sections (61) are outwards protruded, the arc surface sections (61) at two ends are symmetrical with each other in center, the top surface of the rotating strip (6) is provided with arc grooves (62) along the arc surface sections (61), one side wall of the arc grooves (62) is provided with teeth (63), gears (64) meshed with the teeth (63) are horizontally arranged in the arc grooves (62), arc holes (65) are formed in the bottoms of the arc grooves (62), vertical rods (66) penetrating through the arc holes (65) are fixedly connected to the bottom surfaces of the gears (64), a plurality of segments (67) are vertically fixedly connected to the peripheral surfaces of the vertical rods (66), extension rods (68) are fixedly connected to the top surfaces of the gears (64), the extension rods (68) are horizontally arranged in the inner cavities (69), and the extension rods (69) are arranged in the inner cavities (69) of the rotating valve body (1), and the other ends of the extension rods (69) are arranged in the inner cavities (6).
5. The locking device for the heat-insulating fireproof valve according to claim 4, wherein a top cover of the storage box (5) on one side of the rotating strip (6) is provided with a top cover (501) fixedly connected to the top edge of the vertical plate (51), a space is reserved between the top cover (501) and the top surface of the inner cavity of the valve body (1), the top cover (501) is fixedly connected with a connecting pipe (502) communicated with the top feeding hole (101) of the valve body (1) and the inner cavity of the storage box (5), and one end, far away from the gear (64), of the telescopic rod (69) is rotatably arranged between the top cover (501) and the top of the valve body (1).
6. A locking device for a fire protection valve according to claim 1, wherein the second rotary shaft (601) of the rotary bar (6) extends to the outside of the valve body (1), the linkage mechanism (7) comprises a first worm (71) coaxially connected to the first rotary shaft (301), a first worm wheel (72) meshed with the first worm (71), a first transmission rod (73) coaxially connected to the first worm wheel (72) and horizontally rotating and arranged on the valve body (1), a second worm (74) coaxially connected to the first transmission rod (73) and far from one end of the first worm wheel (72), a second worm wheel (75) meshed with the second worm wheel (74), a second transmission rod (76) coaxially connected to the second worm wheel (75) and horizontally rotating and arranged on the valve body (1), a third worm (77) coaxially connected to one end of the second transmission rod (76) and far from the second worm (75), a third worm wheel (78) coaxially connected to the second worm wheel (601), and the third worm wheel (78) are meshed with the third worm wheel (77).
7. Locking device for a fire protection valve of the type according to claim 1, characterized in that the valve body (1) is provided on its outer wall with a sealing plug (102) which plugs into the feed opening (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310189113.XA CN116085508B (en) | 2023-03-02 | 2023-03-02 | Locking device for heat-insulating fireproof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310189113.XA CN116085508B (en) | 2023-03-02 | 2023-03-02 | Locking device for heat-insulating fireproof valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116085508A CN116085508A (en) | 2023-05-09 |
| CN116085508B true CN116085508B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310189113.XA Active CN116085508B (en) | 2023-03-02 | 2023-03-02 | Locking device for heat-insulating fireproof valve |
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| CN (1) | CN116085508B (en) |
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