CN217029979U

CN217029979U - Fire prevention governing valve of ward tuber pipe

Info

Publication number: CN217029979U
Application number: CN202220636203.XU
Authority: CN
Inventors: 龚光明
Original assignee: Shenzhen Hong Kong Jianwei Air Duct Engineering Shenzhen Co ltd
Current assignee: Shenzhen Hong Kong Jianwei Air Duct Engineering Shenzhen Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-22
Anticipated expiration: 2032-03-22

Abstract

The application relates to the field of fire safety, in particular to a fire prevention regulating valve of a ward air pipe, which comprises a valve body, a shaft lever, blades and an opening and closing control mechanism; the blades are positioned in the inner cavity of the valve body and used for blocking or communicating the passage of the valve body; the shaft is fixed to the blade; the end part of the shaft rod extends to the valve body and partially penetrates through the side wall of the valve body; the opening and closing control mechanism is positioned outside the valve body; one end of the shaft lever extends out of the outer side of the valve body and is connected with the opening and closing control mechanism; the opening and closing control mechanism is used for controlling the rotation angle of the shaft lever. The size of the opening of the fire damper can be adjusted according to requirements, and the diffusion speed of smoke in a fire area to other areas through the ventilation pipe is slowed down; simultaneously, reduce the speed that the intensity of a fire stretchs, alleviate the influence to other regions, effectively solve the problem that can't satisfy the whole demand of air volume and back-fire relief function.

Description

Fire prevention governing valve of ward tuber pipe

Technical Field

The utility model belongs to the technical field of fire control safety and specifically relates to a fire prevention governing valve of ward tuber pipe is related to.

Background

At present, a fire damper is a fire-fighting component, is generally installed on a pipeline of a smoke exhaust system, can select the opening and closing degree according to actual requirements, and is used for exhausting air, exhausting smoke or preventing fire.

The fire-proof valve applied to the air duct in the ward area of the hospital generally has two states of complete opening and complete closing. Typically, fire dampers have only a fully open or closed state.

In view of the above-mentioned related art, the inventor believes that the fire damper has only two states of fully open and fully closed, and cannot meet the overall requirement of combining the ventilation volume and the fire retardant function.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art, and provides a fireproof regulating valve of a ward air pipe with a regulating function, which can meet the overall requirements of ventilation volume and fire retardant function.

The purpose of the utility model can be realized by the following technical scheme: a fire prevention regulating valve of a ward air pipe comprises a valve body, a shaft lever, blades and an opening and closing control mechanism; the blades are positioned in the inner cavity of the valve body and used for blocking or communicating the passage of the valve body; the shaft is fixed to the blade; the end part of the shaft rod extends to the side wall of the valve body partially through the valve body towards the valve body; the opening and closing control mechanism is positioned outside the valve body; one end of the shaft lever extends out of the outer side of the valve body and is connected with the opening and closing control mechanism; the opening and closing control mechanism is used for controlling the rotation angle of the shaft lever.

Through adopting foretell technical scheme, install the fire prevention governing valve on the ward ventilation pipe, control the axostylus axostyle through opening and shutting and drive the blade rotation, can control the opening size of fire prevention governing valve for adjust the tuber pipe air volume. When a fire disaster occurs in a ward, the opening size of the fireproof adjusting valve can be adjusted according to the requirement to control the ventilation quantity of the air pipe, even the fireproof adjusting valve is closed, the air pipe passage is blocked, and the diffusion speed of the smoke in a fire catching area to other areas through the ventilation pipe is slowed down; meanwhile, the degree of the too fast spread of the fire is reduced, and the influence on other areas is lightened.

Optionally, the opening and closing control mechanism comprises a mounting assembly, a rotating assembly and a locking component; the mounting assembly is fixed on the valve body; the rotating assembly is connected with the shaft rod, and slides along the mounting assembly on one side of the mounting assembly, which is far away from the valve body. One side of the rotating assembly is arranged at the end part of the shaft lever, and the other side of the rotating assembly is connected with the mounting assembly in a sliding manner; the locking component is movably arranged between the mounting component and the rotating component and used for locking or releasing the rotating component to the mounting component.

Through adopting foretell technical scheme, rotating assembly rotates and utilizes locking part control locking or release along the installation component, can be convenient for rotating assembly drive axostylus axostyle and blade and keep the degree that opens and shuts, make the opening size of valve body remain stable to keep the tuber pipe air volume. Optionally, the mounting assembly includes a bracket and a limit rail; the limiting rail is connected with one side of the bracket; one side of the support far away from the limiting rail is fixed on the valve body.

By adopting the technical scheme, the limiting rail is fixed on the valve body through the bracket and is used for limiting the rotating range of the rotating assembly; the locking component can control the rotating assembly to be locked or released on the limiting track, and two ends of the limiting track can be used as two limiting points of the rotating range of the rotating assembly.

Optionally, the limiting rail is arc-shaped, and the radian is not less than pi/2.

By adopting the technical scheme, the arc-shaped limiting track conforms to the rotating track of the rotating assembly, the radian is not less than pi/2, when the initial deflection angle of the rotating assembly is 0 degree, the blades are parallel to the airflow of the ventilation pipe, and the fireproof regulating valve is in a completely opened state; when the deflection angle of the rotating assembly is 90 degrees, the blades are vertically intersected with the airflow of the ventilation pipe, and the fireproof adjusting valve is in a completely closed state, so that the rotation amplitude of the blades is ensured.

Optionally, the rotating assembly comprises a sliding sheet and a rotating rod sleeve; the sliding sheet is fixed on the rotating rod sleeve; the rotating rod sleeve is fixedly connected to the shaft rod; the sliding piece moves along the limiting rail, and the locking component is arranged between the sliding piece and the limiting rail.

Through adopting foretell technical scheme, do not tightly laminate between slider and the spacing track, locking part supports tight slider and spacing track, realizes relative locking between the two.

Optionally, the sliding piece is positioned on one side of the limiting track, and the sliding piece is provided with a screw hole matched with the locking component; the locking component penetrates through the screw hole and rotates towards the limiting track.

Through adopting foretell technical scheme, the locking part passes through the rotatory elasticity degree of screw for adjust the slip of slide on spacing track or fix.

Optionally, the number of the supports is at least two, and two ends of the limiting track are respectively connected with one support.

Through adopting foretell technical scheme, the unsettled setting of spacing track, a support is respectively connected and is fixed in the valve body in both ends, increases the firm degree that spacing track and valve body are connected.

Optionally, there are two sliding pieces, one sliding piece is located on one side of the limiting track far away from the valve body, and the other sliding piece is located on one side of the limiting track close to the valve body; the sliding pieces are arranged in parallel, so that the sliding pieces are prevented from being separated from the limiting rails.

By adopting the technical scheme, the sliding sheets are arranged on two sides of the limiting track in parallel; the sliding sheet on one side, close to the support, of the limiting track is separated by the support, and the sliding range of the other sliding sheet is limited to the limiting track by the support at two ends of the limiting track.

Optionally, the fire prevention adjusting valve for the ward air pipe further comprises a link mechanism; at least two blades are arranged; the link mechanism is connected with the shaft lever.

Through adopting foretell technical scheme, the control mechanism that opens and shuts passes through the axostylus axostyle and is connected with link mechanism, controls the rotation of all blades simultaneously.

Optionally, the link mechanism is mounted outside the valve body and located at one end of the shaft rod far away from the opening and closing control mechanism; the connecting rod mechanism comprises a rod connecting plate and a linkage rod; a rod connecting plate is fixed at the end part of each shaft rod; one side of the rod connecting plate, which is far away from the shaft rod, is hinged with the linkage rod; the deflection angles of the adjacent rod connecting plates relative to the width direction of the self-connected blade are different, and the sum of the deflection angles of the adjacent rod connecting plates relative to the width direction of the self-connected blade is 90 degrees; the deflection angles of the two connecting plates connected with the same linkage rod relative to the linkage rod are the same, and the two connecting plates are used for driving the shaft rod to synchronously rotate.

Through adopting foretell technical scheme, when opening and shutting control mechanism control axostylus axostyle rotated, other axostylus axostyles can reverse the same amplitude rotation simultaneously.

In summary, the present application includes at least one of the following advantages:

1. install the fire prevention governing valve on the ward ventilation pipe, can ensure the circulation of air of ward. When a fire disaster occurs in a ward area, the diffusion speed of smoke in the fire disaster area to other areas is slowed down; meanwhile, the fire spreading speed is reduced, and the influence on other areas is reduced.

2. The arc-shaped limiting track is matched with the rotating track of the rotating assembly; the radian is not less than pi/2, when the initial deflection angle of the rotating assembly is 0 degree, the blades are parallel to the airflow of the ventilation pipe, and the fireproof regulating valve is in a fully open state; when the deflection angle of the rotating assembly is 90 degrees, the blades are vertically intersected with the airflow of the ventilation pipe, and the fireproof adjusting valve is in a completely closed state, so that the rotation amplitude of the blades is ensured.

3. The locking part is used for adjusting the sliding or fixing of the sliding sheet on the limiting rail through the degree of tightness of the rotation of the screw hole.

Drawings

Fig. 1 is a schematic structural diagram of a fire-proof regulating valve in an embodiment of the present application.

Fig. 2 is a schematic position diagram of the link mechanism and the valve body in the embodiment of the present application.

Fig. 3 is an enlarged view of a in fig. 1.

Fig. 4 is a schematic structural diagram of a link mechanism in an embodiment of the present application.

Fig. 5 is a schematic structural view of another link mechanism in the embodiment of the present application.

Description of the reference numerals: 1. a valve body; 2. a shaft lever; 3. a blade; 4. an opening and closing control mechanism; 41. mounting the component; 411. a support; 412. a limiting track; 42. a rotating assembly; 421. a slide sheet; 422. a rotating rod sleeve; 43. a locking member; 5. a link mechanism; 51. a rod connecting plate; 52. a linkage rod; 53. a connecting rod connecting plate; 54. a connecting rod; 55. a fixing sheet.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

When the fire prevention valve was installed in hospital ward ventilation pipe, ward staff often can open or close the fire prevention valve through opening and shutting control mechanism 4, opens the fire prevention valve when the safety condition, closes the fire prevention valve when the condition of catching fire. But the opening and closing control mechanism 4 equipped with in the fire prevention valve of installing in the ward tuber pipe at present can only control 1 passageway of valve body and open totally or closed totally, can not satisfy the whole demand of air volume and back-fire relief function simultaneously.

The embodiment of the application discloses fire prevention governing valve of ward tuber pipe.

Referring to fig. 1 and 2, the fire-proof regulating valve comprises a valve body 1, an opening and closing control mechanism 4, a shaft rod 2, a blade 3 and a link mechanism 5. In the present embodiment, the number of the shaft 2 is two, and the number of the blades 3 is also two. The shaft lever 2 is fixed on the blade 3, the end part of the shaft lever 2 extends to the side wall of the valve body 1 towards the valve body 1 and partially penetrates through the side wall of the valve body 1, and one end of the shaft lever 2 extends out of the valve body 1 and is connected with the opening and closing control mechanism 4; meanwhile, the end of the shaft lever 2 far away from the opening and closing control mechanism 4 is connected with the link mechanism 5, so that the opening and closing control mechanism 4 can control all the shaft levers 2 to rotate at the same amplitude.

Referring to fig. 3, the opening and closing control mechanism 4 includes a rotating assembly 42, a mounting assembly 41, and a locking member 43; the rotating assembly 42 comprises a rotating rod sleeve 422 and a sliding sheet 421; the mounting assembly 41 includes a curb rail 412 and a bracket 411. The number of the sliding pieces 421 is two in this embodiment, and the number of the brackets 411 is also two; two ends of the limiting rail 412 are respectively connected with a bracket 411; and one end far away from the limiting rail 412 is fixed outside the valve body 1; the rotating rod sleeve 422 is connected to the shaft rod 2, the two sliding pieces 421 are connected to the rotating rod sleeve 422 and arranged in parallel, one sliding piece 421 is located on one side of the limiting rail 412 far away from the valve body 1 and slides back and forth along the limiting rail 412, the other sliding piece 421 is located on one side of the limiting rail 412 near the valve body 1 and is blocked by the support 411, the possibility of derailment of the sliding pieces 421 can be reduced, and the locking part 43 is arranged between the sliding piece 421 and the limiting rail 412.

The limit rail 412 is arranged to be arc-shaped, the radian is not less than pi/2, when the blades 3 are parallel to the airflow of the ventilation pipe, the fireproof regulating valve is in a completely open state, when the blades 3 are perpendicularly intersected with the airflow of the ventilation pipe, the fireproof regulating valve is in a completely closed state, and the radian is not less than pi/2, so that the rotation range of the blades 3 can be guaranteed.

The locking member 43 can be a locking screw or the like, and when the locking screw is used, a screw hole is formed in the sliding piece 421 at one side of the limiting rail 412, which is far away from the valve body 1, so that the locking member 43 can rotate along the screw hole and tightly abut against the limiting rail 412, which is beneficial to locking or releasing the sliding piece 421 to the limiting rail 412.

Referring to fig. 4, in an embodiment, the link mechanism 5 may be installed outside the valve body 1 on a side away from the opening and closing control mechanism 4, a link plate 51 is fixed to an end of each shaft 2, and a side of the link plate 51 away from the shaft 2 is hinged to a link rod 52; the deflection angles of the adjacent connecting rod plates 51 relative to the width direction of the connecting blade 3 are different; the sum of the deflection angles of the adjacent connecting rod plates 51 relative to the connecting blades 3 is 90 degrees; the two link plates 51 located on the same link rod 52 have the same deflection angle relative to the link rod 52, and are used for driving the shaft rod 2 to rotate reversely and at the same amplitude.

Referring to fig. 5, in another embodiment, the link mechanism 5 may be installed between all the blades 3, specifically adopting a structure that: each blade 3 is provided with a fixing sheet 55 perpendicular to the blade; all the fixing tabs 55 are located on the same side of the corresponding blade 3; the fixing pieces 55 are hinged with a connecting rod connecting plate 53; and one sides of all the connecting rod connecting plates 53, which are far away from the fixing plates 55, are fixedly connected to the connecting rods 54 at equal intervals and are used for driving the shaft lever 2 to rotate in the same direction and in the same amplitude.

The implementation principle of the fire prevention governing valve of ward tuber pipe of the embodiment of this application is:

the fireproof regulating valve is arranged on a ventilation pipe in a hospital ward, and when a fire disaster occurs, the sliding sheet 421 is shifted to a proper position according to actual conditions to drive the shaft lever 2 and the blades 3 to rotate; utilize link mechanism 5 simultaneously, drive the synchronous rotation of all the other blades 3 and axostylus axostyle 2, screw up through the screw with locking part 43 simultaneously and carry out the locking to slider 421, keep blade 3 pivoted range in the 1 passageway of valve body, satisfy the whole demand of air volume and back-fire relief function. When the fire is too big, the locking component 43 is released to enable the sliding sheet 421 to be in a slidable state, the sliding sheet 421 to the blade 3 completely blocks the passage of the valve body 1, and meanwhile, the locking component 43 is used for locking, so that the fire spreading speed is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a fire prevention governing valve of ward tuber pipe which characterized in that: comprises a valve body (1), a shaft lever (2), a blade (3) and an opening and closing control mechanism (4); the blade (3) is positioned in the inner cavity of the valve body (1) and is used for blocking or communicating the passage of the valve body (1); the shaft rod (2) is fixed on the blade (3), and the end part of the shaft rod (2) extends towards the valve body (1) to partially penetrate through the side wall of the valve body (1); the opening and closing control mechanism (4) is arranged on the outer side of the valve body (1); one end of the shaft lever (2) extends out of the outer side of the valve body (1) and is connected with the opening and closing control mechanism (4); the opening and closing control mechanism (4) is used for controlling the rotation angle of the shaft lever (2).

2. The fire prevention regulating valve of ward air duct of claim 1, characterized in that: the opening and closing control mechanism (4) comprises a mounting assembly (41), a rotating assembly (42) and a locking component (43); the mounting assembly (41) is fixed on the valve body (1); one side of the rotating component (42) is arranged at the end part of the shaft lever (2), and the other side of the rotating component is connected with the mounting component (41) in a sliding way; the locking component (43) is movably arranged between the mounting component (41) and the rotating component (42) and is used for locking or releasing the rotating component (42) to the mounting component (41).

3. The fire prevention regulating valve of ward air pipe of claim 2, characterized in that: the mounting assembly (41) comprises a bracket (411) and a limiting rail (412); one side of the bracket (411) far away from the limiting rail (412) is fixed on the valve body (1); the limiting rail (412) is connected with one side of the bracket (411).

4. The fire damper valve for a ward air duct of claim 3, wherein: the limiting rail (412) is arc-shaped, and the radian is not less than pi/2.

5. The fire prevention regulating valve of ward air duct of claim 3, characterized in that: the rotating assembly (42) comprises a sliding sheet (421) and a rotating rod sleeve (422); the sliding sheet (421) is fixed on the rotating rod sleeve (422); the rotating rod sleeve (422) is fixedly connected to the shaft rod (2); the sliding piece (421) moves along the limiting track (412), and the locking part (43) is arranged between the sliding piece (421) and the limiting track (412).

6. The fire damper valve for a ward air duct of claim 5, wherein: the sliding sheet (421) is positioned on one side of the limiting track (412), and the sliding sheet (421) is provided with a screw hole matched with the locking component (43); the locking component (43) passes through the screw hole and rotates towards the limiting track (412).

7. The fire prevention regulating valve of ward air duct of claim 5, wherein: the number of the supports (411) is at least two, and two ends of the limiting track (412) are respectively connected with one support (411).

8. The fire-proof regulating valve for the ward air pipe according to claim 7, wherein there are two sliding pieces (421), one sliding piece (421) is located on one side of the limiting track (412) far away from the valve body (1), and the other sliding piece (421) is located on one side of the limiting track (412) close to the valve body (1); the sliding pieces (421) are arranged in parallel, so that the sliding pieces (421) are prevented from being separated from the limiting rails (412).

9. The fire prevention regulating valve of ward air duct of claim 1, characterized in that: the device also comprises a link mechanism (5); at least two blades (3) are arranged, and the connecting rod mechanism (5) is connected with the shaft lever (2); all the blades (3) are in linkage connection through the connecting rod mechanism (5).

10. The fire damper valve for a ward air duct of claim 9, wherein: the connecting rod mechanism (5) is arranged on the outer side of the valve body (1) and is positioned at one end of the shaft lever (2) far away from the opening and closing control mechanism (4); the link mechanism (5) comprises a link plate (51) and a link rod (52); a rod connecting plate (51) is fixed at the end part of each shaft lever (2); one side of the rod connecting plate, which is far away from the shaft lever, is hinged with the connecting rod; the deflection angles of the adjacent rod connecting plates (51) in the width direction relative to the self-connected blade (3) are different, and the sum of the deflection angles of the adjacent rod connecting plates (51) in the width direction relative to the self-connected blade (3) is 90 degrees; the deflection angles of the two connecting plates (51) connected with the same linkage rod (52) relative to the linkage rod (52) are the same, and the two connecting plates are used for driving the shaft rod (2) to synchronously rotate.