CN219177019U

CN219177019U - High-tightness high-temperature fireproof valve

Info

Publication number: CN219177019U
Application number: CN202320130423.XU
Authority: CN
Inventors: 田强
Original assignee: Hangzhou Hengtong Ventilation Equipment Co ltd
Current assignee: Hangzhou Hengtong Ventilation Equipment Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-13
Anticipated expiration: 2033-01-17

Abstract

The utility model discloses a high-tightness high-temperature fireproof valve, which relates to the technical field of fireproof valves and comprises a valve body, wherein flanges are fixedly connected to two end surfaces of the valve body, a rotating shaft is rotationally embedded between the upper side wall and the lower side wall of the valve body, a valve plate is sleeved on the outer side transmission of the rotating shaft, two sides of the valve plate are fixedly connected with baffle plates on the inner wall of the valve body, a plurality of first pressing plates and second pressing plates are slidingly embedded on the side of the baffle plates on the inner wall of the valve body, a servo motor is fixedly connected to the upper side of the valve body, an output shaft of the servo motor is fixedly connected with the top end of the rotating shaft, the rotating shaft is controlled by the arrangement of the baffle plates, the rotating shaft and the servo motor, the rotating shaft drives a lug to stir the valve plate to rotate until the valve plate is abutted against the baffle plates, and the valve plate does not move any more.

Description

High-tightness high-temperature fireproof valve

Technical Field

The utility model relates to the technical field of fire valves, in particular to a high-tightness high-temperature fire valve.

Background

The fire-proof valve is arranged in the air duct system of the central air conditioner, the working principle is that the temperature control of the very fusible alloy arranged on the valve is utilized, the action of gravity and the action of a spring mechanism are utilized, when a fire disaster happens, flame invades the air duct, the fusible alloy on the valve is melted at high temperature, or the memory alloy is deformed to enable the valve to be automatically closed, and the fire-proof valve is used for occasions where the air duct and the fire-proof partition penetrate, and can be opened or manually opened by a 24V direct current through the control center;

the runner structural design of the valve plate adaptation fire damper of traditional dish type fire damper, when the valve plate deflects to the position perpendicular with the wind direction, can play the effect of choked flow, however, because clearance between valve plate and the fire damper inner wall is parallel with the air current flow direction, this leads to the sealed clearance between valve plate and the valve body to bear the wind-force great, and because the valve plate edge is far away from the position of valve rod, this leads to the valve plate edge to take place deformation easily under the effect that receives high wind pressure and high temperature, and then can lead to sealed inefficacy, for this the utility model provides a high leakproofness high temperature fire damper is used for solving above-mentioned problem.

Disclosure of Invention

The utility model provides a high-tightness high-temperature fireproof valve, which solves the technical problems that the gap between a valve plate and the inner wall of a fireproof valve is parallel to the flow direction of air flow, so that the wind force born by the sealing gap between the valve plate and the valve body is large, and the edge of the valve plate is far away from the valve rod, so that the edge of the valve plate is easy to deform under the action of high wind pressure and high temperature, and the sealing is invalid.

In order to solve the technical problems, the high-tightness high-temperature fireproof valve comprises a valve body, flanges are fixedly connected to two end faces of the valve body, a rotating shaft is rotatably embedded between the upper side wall and the lower side wall of the valve body, a valve plate is sleeved on the outer side transmission sleeve of the rotating shaft, two sides of the valve plate are fixedly connected with baffle plates on the inner wall of the valve body, a plurality of first pressing plates and second pressing plates are slidably embedded on the side of the baffle plates and on the inner wall of the valve body, a servo motor is fixedly connected to the upper side of the valve body, an output shaft of the servo motor is fixedly connected with the top end of the rotating shaft, an annular cavity is formed in the valve body, a transmission assembly is arranged in the annular cavity, and the transmission assembly is in transmission connection between the rotating shaft and each first pressing plate and each second pressing plate.

Preferably, the two baffles are distributed in a central symmetrical structure about the rotating shaft, and the baffles are in a concave structural design.

Preferably, the two first pressing plates are respectively and slidably embedded on the upper side wall and the lower side wall of the valve body, one side of each first pressing plate is fixedly connected with a threaded cylinder, each threaded cylinder is connected with a screw rod in an extending mode to the annular cavity in a threaded mode, each screw rod is rotationally embedded on the inner wall of the annular cavity, and a first gear is fixedly sleeved on the outer side of the middle of each screw rod.

Preferably, the two second pressing plates are slidably embedded on the left side wall and the right side wall of the valve body, one side of each second pressing plate is fixedly connected with a short toothed bar, each short toothed bar extends to the annular cavity to be connected with a second gear in an engaged mode, and the sections of the first pressing plate and the second pressing plate are of right trapezoid structural design.

Preferably, the transmission assembly comprises a driving gear fixedly connected to the outer walls of two ends of the rotating shaft, long racks capable of sliding along the inner walls of the annular cavity are connected to two sides of the driving gear in a meshed mode, a first gear and a driven gear are connected to the long racks in a meshed mode, vertical shafts are fixedly connected between the driven gears, two ends of each vertical shaft are rotatably connected with the inner walls of the annular cavity, and the outer sides of the middle of the vertical shafts are fixedly connected with a second gear.

Preferably, a sliding cavity is arranged in the rotating shaft, protruding blocks are embedded at two ends of the sliding cavity in a sliding mode, springs are fixedly connected between the protruding blocks, the outer ends of the protruding blocks are arc-shaped structural designs, and at least one groove structure is formed in the inner wall of the valve plate corresponding to the protruding blocks.

Compared with the related art, the high-tightness high-temperature fireproof valve provided by the utility model has the following beneficial effects:

according to the high-tightness high-temperature fireproof valve, the baffle, the valve plate, the rotating shaft and the servo motor are arranged, the servo motor is controlled to drive the rotating shaft to rotate, the rotating shaft drives the lug to stir the valve plate to rotate until the valve plate is abutted against the baffle, and the valve plate is not moved any more;

according to the high-tightness high-temperature fireproof valve, the first pressing plate, the second pressing plate and the transmission assembly are arranged, the driving gear is meshed with the long racks on two sides of the driving gear to drive the long racks to linearly slide, the first gear and the driven gear can be driven to rotate, the screw rod threads drive the threaded cylinder to push the first pressing plate to extend, the short racks push the second pressing plate to extend, and therefore the first pressing plate and the second pressing plate can press the side edges of the valve plate to be tightly attached to the baffle plate, the tightness of the edge of the valve plate can be effectively improved, the valve plate can be fully limited, the deformation degree of the valve plate caused by high temperature influence is effectively reduced, and the sealing safety is fully ensured.

Drawings

FIG. 1 is an external view of a high-tightness high-temperature fire-proof valve according to the present utility model;

FIG. 2 is a front cross-sectional view of a high-tightness high-temperature fire-proof valve of the present utility model;

FIG. 3 is a cut-away view of a high-tightness high-temperature fire damper according to the present utility model;

fig. 4 is a bottom cross-sectional view of a high-tightness high-temperature fire-proof valve of the present utility model.

Reference numerals in the drawings: 1. a valve body; 2. a rotating shaft; 21. a sliding cavity; 22. a bump; 23. a spring; 3. a valve plate; 4. a baffle; 5. a first platen; 51. a thread cylinder; 52. a screw rod; 53. a first gear; 6. a second pressing plate; 61. a short rack; 62. a second gear; 7. a servo motor; 8. a transmission assembly; 81. a drive gear; 82. a long rack; 83. a driven gear; 84. and a vertical axis.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: 1-4, the high-tightness high-temperature fireproof valve comprises a valve body 1, flanges are fixedly connected to two end faces of the valve body 1, a rotating shaft 2 is rotationally embedded between the upper side wall and the lower side wall of the valve body 1, a valve plate 3 is sleeved on the outer side of the rotating shaft 2, a sliding cavity 21 is arranged in the rotating shaft 2, two ends of the sliding cavity 21 are slidably embedded with a lug 22, a spring 23 is fixedly connected between the two lugs 22, the outer ends of the lugs 22 are of an arc-shaped structural design, and at least one groove structure is arranged on the inner wall of the valve plate 3 corresponding to the lug 22;

specifically, the two ends of the rotating shaft 2 and the valve plate 3 are rotationally connected by means of bearings, at the initial stage of operation of the servo motor 7, the rotating shaft 2 drives the lug 22 to stir the valve plate 3 to rotate, when the position of the valve plate 3 is propped against the baffle plate 4, the extrusion force between the arc surface at the end part of the lug 22 and the edge of the groove structure is increased, the component force can push the lug 22 to retract into the sliding cavity 21, so that the rotating shaft 2 can be continuously driven to rotate under the condition that the position of the valve plate 3 is kept unchanged, otherwise, when the output shaft of the servo motor 7 reverses, after the resistance of the first pressing plate 5 and the second pressing plate 6 disappears, the lug 22 can stir the valve plate 3 to reversely rotate, so that the valve plate 3 is opened; the valve body 1 is actually composed of two flange plates and a rectangular frame welded and fixed between the two flange plates, the two rectangular frames have different sizes, and a containing gap can be formed between the two rectangular frames.

Further, baffle plates 4 are fixedly connected to two sides of the valve plate 3 and positioned on the inner wall of the valve body 1, the two baffle plates 4 are distributed in a central symmetrical structure about the rotating shaft 2, and the baffle plates 4 are in a concave structure design;

specifically, the valve plate 3 rotates to lean against the baffle plate 4, the valve plate 3 does not move any more, and as the contact surface of the valve plate 3 and the baffle plate 4 is perpendicular to the wind direction, the resistance is large, and the air leakage of the sealing gap of the valve plate 3 can be reduced by matching with the sealing gasket adhered to the side edge of the baffle plate 4.

Further, a plurality of first pressing plates 5 and second pressing plates 6 are respectively and slidably embedded on the side of the baffle 4 and on the inner wall of the valve body 1, the two first pressing plates 5 are respectively and slidably embedded on the upper side wall and the lower side wall of the valve body 1, one side of each first pressing plate 5 is fixedly connected with a threaded cylinder 51, each threaded cylinder 51 extends to an annular cavity and is internally and spirally connected with a screw rod 52, each screw rod 52 is rotationally embedded on the inner wall of the annular cavity, and a first gear 53 is fixedly sleeved on the outer side of the middle of each screw rod 52;

specifically, the first gear 53 drives the screw rod 52 to rotate, and the screw rod 52 drives the screw thread cylinder 51 to push the first pressing plate 5, so that the upper edge and the lower edge of the valve plate 3 are pressed by the inclined plane of the first pressing plate 5 to be tightly attached to the baffle plate 4, the inner wall of the annular cavity is a closed cavity, and the driving assembly 8 is protected.

Further, the two second pressing plates 6 are slidably embedded on the left side wall and the right side wall of the valve body 1, one side of each second pressing plate 6 is fixedly connected with a short rack 61, each short rack 61 extends into the annular cavity to be connected with a second gear 62 in an engaged manner, and the sections of the first pressing plate 5 and the second pressing plate 6 are of right trapezoid structure design;

specifically, the vertical shaft 84 drives the second gear 62 to rotate, the second gear 62 is meshed with the transmission short rack 61, the short rack 61 pushes the second pressing plate 6, the second pressing plate 6 is tightly attached to the baffle plate 4 by pressing the side edge of the valve plate 3, and the inclined surfaces of the first pressing plate 5 and the second pressing plate 6 are attached to the valve plate 3, so that the first pressing plate 5 and the second pressing plate 6 can gradually press and press the edge deformation attaching baffle plate 4 of the valve plate 3, and the sealing performance is good.

Further, a servo motor 7 is fixedly connected to the upper side of the valve body 1, an output shaft of the servo motor 7 is fixedly connected to the top end of the rotating shaft 2, an annular cavity is formed in the valve body 1, a transmission assembly 8 is arranged in the annular cavity, the transmission assembly 8 is in transmission connection between the rotating shaft 2 and each of the first pressing plate 5 and the second pressing plate 6, the transmission assembly 8 comprises a driving gear 81 fixedly connected to the outer walls of two ends of the rotating shaft 2, long racks 82 capable of sliding along the inner walls of the annular cavity are respectively connected to two sides of the driving gear 81 in a meshed manner, first gears 53 and driven gears 83 are respectively connected to the long racks 82 in a meshed manner, vertical shafts 84 are respectively fixedly connected between adjacent driven gears 83, two ends of each vertical shaft 84 are respectively connected with the inner walls of the annular cavity in a rotating manner, and the outer sides of the middle of each vertical shaft 84 are respectively connected with the second gears 62 in a fixed manner;

specifically, the valve body 1 is connected in the ventilation system, the fire control detection system controls the servo motor 7 to open and close, then controls the servo motor 7 to drive the rotating shaft 2 to rotate, the rotating shaft 2 drives the driving gears 81 at two ends of the rotating shaft to rotate, the driving gears 81 are engaged to drive the long racks 82 at two sides of the rotating shaft to linearly slide, the first gears 53 and the driven gears 83 can be driven to rotate, the driven gears 83 drive the vertical shafts 84 to rotate, the vertical shafts 84 drive the second gears 62 to rotate, further, multi-belt transmission can be achieved, a plurality of electric control devices are not required to be arranged, and manufacturing cost is saved.

Working principle: when the device is used, the valve body 1 is connected in the ventilation system, when fire danger happens, the fire detection system acquires data according to electronic instruments such as a smoke sensor and a temperature sensor in a ventilation pipeline, if the fire danger exceeds a safety threshold value, the servo motor 7 is controlled to drive the rotating shaft 2 to rotate, the rotating shaft 2 drives the lug 22 to stir the valve plate 3 to rotate until the valve plate 3 abuts against the baffle plate 4, the valve plate 3 does not move any more, at the moment, the lug 22 is extruded to pass through a groove structure, the rotating shaft 2 keeps a rotating gesture, the rotating shaft 2 drives the driving gears 81 at two ends of the rotating shaft to rotate, the driving gears 81 are meshed with long racks 82 at two sides of the driving gears to linearly slide, the first gears 53 and the driven gears 83 can be driven to rotate, the first gears 53 drive the screw rod 52 to rotate, the screw rod 52 drives the screw barrel 51 to push the first pressing plate 5, the upper edge and the lower edge of the valve plate 3 are tightly attached to the baffle plate 4, the driven gears 83 drive the vertical shaft 84 to rotate, the second gears 62 are meshed with the short racks 61, the second pressing plate 6 presses the side edges of the valve plate 3 tightly attached to the baffle plate 4, the sealing performance of the edge of the valve plate 3 can be effectively improved, the sealing performance of the valve plate 3 can be reduced, the sealing performance of the valve plate 3 can be well influenced by high temperature deformation, and the high temperature resistance can be well, and the sealing performance of the valve plate can be well sealed, and the high temperature resistance can be well, and the sealing performance can be well.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high leakproofness high temperature fire prevention valve, includes valve body (1), the equal fixedly connected with flange of both ends face of valve body (1), a serial communication port, rotate between the upper and lower lateral wall of valve body (1) and inlay and be equipped with pivot (2), the outside transmission cover of pivot (2) is equipped with valve plate (3), the both sides of valve plate (3) just are located equal fixedly connected with baffle (4) on valve body (1) inner wall, the side of baffle (4) just is located on valve body (1) inner wall and all slides and inlay and be equipped with a plurality of first clamp plates (5) and second clamp plate (6), the top fixedly connected with servo motor (7) of valve body (1), the output shaft of servo motor (7) and the top fixedly connected with of pivot (2), be provided with a cyclic annular cavity in valve body (1), be provided with drive assembly (8) in this cyclic annular cavity, drive assembly (8) transmission connection is between pivot (2) and each first clamp plate (5) and second clamp plate (6).

2. The high-tightness high-temperature fireproof valve according to claim 1, wherein the two baffles (4) are distributed in a central symmetrical structure about the rotating shaft (2), and the baffles (4) are in a concave structural design.

3. The high-tightness high-temperature fireproof valve according to claim 1, wherein two first pressing plates (5) are respectively and slidably embedded on the upper side wall and the lower side wall of the valve body (1), one side of each first pressing plate (5) is fixedly connected with a threaded cylinder (51), each threaded cylinder (51) extends to an annular cavity and is internally and spirally connected with a screw rod (52), each screw rod (52) is rotationally embedded on the inner wall of the annular cavity, and a first gear (53) is fixedly sleeved on the outer side of the middle part of each screw rod (52).

4. The high-tightness high-temperature fireproof valve according to claim 3, wherein the two second pressing plates (6) are embedded on the left side wall and the right side wall of the valve body (1) in a sliding mode, one side of each second pressing plate (6) is fixedly connected with a short toothed bar (61), each short toothed bar (61) extends to the annular cavity to be connected with a second gear (62) in an engaged mode, and the cross sections of the first pressing plate (5) and the second pressing plate (6) are of right trapezoid structural design.

5. The high-tightness high-temperature fireproof valve according to claim 4, wherein the transmission assembly (8) comprises a driving gear (81) fixedly connected to the outer walls of two ends of the rotating shaft (2), long racks (82) capable of sliding along the inner walls of the annular cavity are connected to two sides of the driving gear (81) in a meshed mode, a first gear (53) and a driven gear (83) are connected to the long racks (82) in a meshed mode, vertical shafts (84) are fixedly connected between the adjacent driven gears (83), two ends of each vertical shaft (84) are rotatably connected with the inner walls of the annular cavity, and the outer sides of the middle parts of the vertical shafts (84) are fixedly connected with the second gear (62).

6. The high-tightness high-temperature fireproof valve according to claim 1, wherein a sliding cavity (21) is arranged in the rotating shaft (2), two ends of the sliding cavity (21) are respectively embedded with a convex block (22) in a sliding mode, springs (23) are fixedly connected between the two convex blocks (22), the outer ends of the convex blocks (22) are respectively in an arc-shaped structural design, and at least one groove structure is arranged on the inner wall of the valve plate (3) corresponding to the convex blocks (22).