CN217328658U

CN217328658U - Double-sealing structure for fire-fighting smoke-discharging fire-proof valve

Info

Publication number: CN217328658U
Application number: CN202221188677.9U
Authority: CN
Inventors: 杨廷培; 李仕益
Original assignee: Anhui Jingwei Fire Engineering Co ltd
Current assignee: Anhui Jingwei Fire Engineering Co ltd
Priority date: 2022-05-17
Filing date: 2022-05-17
Publication date: 2022-08-30
Anticipated expiration: 2032-05-17

Abstract

The utility model relates to a double sealing structure for fire-fighting smoke-discharging fire-proof valve, which comprises a valve pipe, wherein the vertical inner walls at the two sides of the valve pipe are respectively and fixedly connected with a first contact-resisting sheet and a second contact-resisting sheet, the width of the first contact-resisting sheet is larger than that of the second contact-resisting sheet, the inside of an operating mechanism is rotationally connected with a rotating shaft penetrating through the valve pipe, and the rotating shaft is fixedly connected with a blade, the two sides of the blade are respectively and symmetrically and fixedly connected with a first side edge strip and a second side edge strip, the first side edge strip and the first contact-resisting sheet are matched and arranged, the second side edge strip and the second contact-resisting sheet are matched and arranged, the scheme is different, the width of the contact-resisting sheet is fixedly connected on the vertical inner wall of the valve pipe, the two sides of the blade are respectively provided with the contact-resisting sheets with the side edge strips with different widths, and the shorter contact sheets can not influence the longer contact-resisting sheets when the blade rotates, thereby realizing the double sealing operation of the flue of the valve pipe, the sealing effect of the device is improved.

Description

Double-sealing structure for fire-fighting smoke-discharging fire-proof valve

Technical Field

The utility model belongs to the technical field of the technique of fire control and specifically relates to a double seal structure for fire control fire prevention valve that discharges fume.

Background

The smoke exhaust fire damper is a fire-fighting part, is generally installed on the pipeline of a mechanical smoke exhaust system, is in an open state at ordinary times, is opened to exhaust smoke when a fire disaster occurs, is closed when the temperature of smoke in a smoke exhaust pipeline reaches 280 ℃, meets the requirements of smoke leakage amount and fire resistance integrity within a certain time, and plays a role in separating smoke and fire resistance.

Most of current fire prevention valves that discharge fume are single plate structure, and it rotates around the axis of rotation, realizes the control to the fire prevention valve opening and shutting, but current single plate formula fire prevention valve only has one deck seal structure, therefore the flue gas is comparatively easy to take place to reveal, and the upper and lower both sides of veneer are simultaneously revealed equally easily, and the effect of separation flue gas is not good. Accordingly, those skilled in the art have provided a double sealing structure for a fire protection smoke exhaust fire damper to solve the problems set forth in the background art as described above.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems presented in the background art described above, the present application provides a double sealing structure for a fire protection smoke evacuation fire damper.

The application provides a pair of double seal structure for fire control fire prevention valve that discharges fume, including the valve pipe, the top of valve pipe is provided with operating device, and operating device's top central point puts and is provided with changeing the handle, the first contact and the second of fixedly connected with supports the contact on the vertical inner wall in both sides of valve pipe respectively, and two sets of first contact and the setting of second conflict piece central symmetry to the width of first contact is greater than the second and supports the contact, the inside rotation of operating device is connected with the pivot that runs through the valve pipe setting, and fixedly connected with blade in the pivot, the both sides of blade are central symmetry fixedly connected with first side strake and second side strake respectively, and first side strake and first conflict piece cooperation setting, and second side strake and second conflict piece cooperation setting.

Through adopting above-mentioned technical scheme, the pivot is taken the blade to rotate for laminate between first side strake and the first contact piece, laminate between second side strake and the second contact piece, thereby carry out quadratic sealing with the inside gap passage of valve pipe, promote the sealed effect of valve pipe.

Preferably, first conflict piece and second conflict piece are located valve pipe central line position both sides respectively, the combination is Y shape structure between first side strip and the second side strip, the rotation direction of pivot is for being supported the motion of contact piece to first conflict piece position by the second.

Through adopting above-mentioned technical scheme, the rotation direction setting of pivot makes between first butt contact and the first side strip, and convenient conflict can all be carried out between second butt contact and the second side strip.

Preferably, logical groove has all been seted up at the bottom and the top of valve pipe, and the inboard of leading to the groove has all slided to inlay has the rubber strip, two the equal fixedly connected with drive plate in one side that the valve pipe was kept away from to the rubber strip.

Through adopting above-mentioned technical scheme, the rubber strip slides in the inboard of valve pipe and is used for realizing the displacement of vertical direction, and the driving plate is used for carrying out the vertical direction drive to the rubber strip.

Preferably, the upper end and the lower end of the rotating shaft are both centrally and symmetrically fixedly connected with two threads, and the four threads are all set to 1/4 circles.

Through adopting above-mentioned technical scheme, the screw thread be used for with the transmission piece between the cooperation realize the displacement of the vertical direction of transmission piece to make laminating between rubber strip and the blade.

Preferably, two recesses have been seted up about pivot central symmetry in transmission piece middle section position department, and the setting of mutually supporting between recess and the screw thread, the recess is located the one end that the screw thread is close to the valve pipe, and rubber strip and blade are laminated each other, the recess is located the screw thread and keeps away from valve pipe one end, separates between rubber strip and the blade.

To sum up, this application includes following beneficial technological effect:

the supporting contact pieces with different widths are fixedly connected to the vertical inner wall of the valve pipe, the side strips with different widths are arranged on the two sides of each blade corresponding to the supporting contact pieces, and the shorter supporting pieces cannot influence the longer supporting pieces when the blades rotate, so that double sealing operation of the valve pipe flue is realized, and the sealing effect of the device is improved; through all sliding fit the rubber strip about the valve pipe, and the one side that the valve pipe was kept away from to the rubber strip sets up the driving piece, utilizes pivoted screw to carry out the lapse of vertical direction to the driving piece to realize the ascending displacement of rubber strip, all contradict the upper and lower side of blade, further guarantee sealed effect.

Drawings

FIG. 1 is an isometric view of a double seal configuration for a fire protection smoke evacuation fire damper in an embodiment of the present application;

FIG. 2 is a bottom isometric view of a double seal configuration for a fire protection smoke evacuation fire damper in an embodiment of the present application;

FIG. 3 is a partial cross-sectional view of a double seal structure for a fire protection smoke evacuation fire damper in an embodiment of the present application;

FIG. 4 is an enlarged view of the drive structure of a double seal structure for a fire protection smoke evacuation fire damper in an embodiment of the present application.

Description of reference numerals: 1. a valve tube; 2. an operating mechanism; 3. turning a handle; 4. a blade; 401. a first side bar; 402. a second side bar; 5. a driving strap; 501. a groove; 6. a rubber strip; 7. a rotating shaft; 8. a first abutting piece; 9. a second abutting piece; 10. and (4) threading.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a double seal structure for fire control fire prevention valve that discharges fume. Referring to fig. 1-3, a double sealing structure for fire-fighting smoke evacuation fire-proof valve comprises a valve tube 1, an operating mechanism 2 is arranged at the top of the valve tube 1, a rotating handle 3 is arranged at the center position of the top of the operating mechanism 2, a first abutting contact piece 8 and a second abutting contact piece 9 are fixedly connected to the vertical inner walls of the two sides of the valve tube 1 respectively, two sets of the first abutting contact piece 8 and the second abutting contact piece 9 are symmetrically arranged in the center, the width of the first abutting contact piece 8 is larger than that of the second abutting contact piece 9, a rotating shaft 7 penetrating through the valve tube 1 is rotatably connected to the inside of the operating mechanism 2, a blade 4 is fixedly connected to the rotating shaft 7, a first side strip 401 and a second side strip 402 are fixedly connected to the two sides of the blade 4 respectively in the center symmetry manner, the first side strip 401 and the first abutting contact piece 8 are arranged in a matching manner, the second side strip 402 and the second abutting contact piece 9 are arranged in a matching manner, preferably, the first side strip 401, The contact surfaces of the second side edge strip 402, the first abutting contact piece 8 and the second abutting contact piece 9 are fixedly connected with rubber, the sealing performance when the contact surfaces are mutually attached is improved, the width of the second abutting contact piece 9 is set to be not capable of blocking the movement of the first side edge strip 401, the width of the first side edge strip 401 is smaller than that of the second side edge strip 402, the first abutting contact piece 8 and the second abutting contact piece 9 are respectively positioned on two sides of the central line position of the valve pipe 1, the first side edge strip 401 and the second side edge strip 402 are combined to be in a Y-shaped structure, the rotating direction of the rotating shaft 7 is the movement from the second abutting contact piece 9 to the position of the first abutting contact piece 8, the bottom and the top of the valve pipe 1 are both provided with through grooves, rubber strips 6 are respectively embedded on the inner sides of the through grooves in a sliding manner, one sides of the two rubber strips 6 far away from the valve pipe 1 are both fixedly connected with transmission pieces 5, the preferable transmission pieces 5 are similar to the rubber strips 6, and the overlook area of the transmission pieces 5 is larger than the rubber strips 6, guarantee the good transmission effect of screw thread 10, two screw threads 10 of the equal central symmetry fixedly connected with in upper and lower both ends of pivot 7, and four screw threads 10 all set up to 1/4 circles, preferred screw thread 10 cross-sections are the platykurtic structure, and pitch equals the ascending movement distance of rubber strip 6, two recess 501 have been seted up about pivot 7 central symmetry in the department of position in the 5 middle sections of driving plate, and the setting of mutually supporting between recess 501 and the screw thread 10, recess 501 is located the one end that screw thread 10 is close to valve pipe 1, rubber strip 6 and blade 4 laminate each other, recess 501 is located screw thread 10 and keeps away from valve pipe 1 one end, separate between rubber strip 6 and the blade 4.

The implementation principle of the double-sealing structure for the fire-fighting smoke-discharging fire-proof valve in the embodiment of the application is as follows: when the fire valve is triggered, under the action of the operating mechanism 2, the blade 4 rotates along with the rotating shaft 7, after the blade rotates by 90 degrees, the two first side strips 401 and the two first abutting pieces 8 contact each other, and the two second side strips 402 and the two second abutting pieces 9 contact each other, so that double sealing of the interior of the valve pipe 1 is realized, smoke gas is required to pass through the valve pipe 1, and the smoke gas is required to pass through the abutting positions of the first side strips 401 and the second side strips 402, so that the sealing effect of the valve pipe 1 is improved; in the process of rotating the rotating shaft 7, the threads 10 at the bottom end of the rotating shaft 7 move in the groove 501, and the rubber strip 6 and the valve pipe 1 are in sliding fit, so that the radial displacement of the transmission piece 5 is limited, the transmission piece 5 is lifted upwards under the fit between the threads 10 and the groove 501, the rubber strip 6 and the blades 4 on the transmission piece 5 are attached to each other, the first side strip 401 and the second side strip 402 are attached to each other, gaps between the blades 4 and the valve pipe 1 are further plugged, and the sealing effect of the valve pipe 1 is further improved.

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: all equivalent changes made according to the 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 double seal structure for fire control smoke exhaust fire prevention valve, includes valve pipe (1), the top of valve pipe (1) is provided with operating device (2), and the top central point of operating device (2) puts and is provided with and changes (3), its characterized in that: the valve pipe is characterized in that the vertical inner walls of two sides of the valve pipe (1) are respectively fixedly connected with a first abutting contact piece (8) and a second abutting contact piece (9), the two sets of first abutting contact pieces (8) and the second abutting contact piece (9) are arranged in a symmetrical mode, the width of the first abutting contact piece (8) is larger than that of the second abutting contact piece (9), the operating mechanism (2) is rotatably connected with a rotating shaft (7) penetrating through the valve pipe (1) in the inner portion, blades (4) are fixedly connected to the rotating shaft (7), the two sides of the blades (4) are respectively fixedly connected with a first side edge strip (401) and a second side edge strip (402) in a symmetrical mode, the first side edge strip (401) and the first abutting contact piece (8) are arranged in a matched mode, and the second side edge strip (402) and the second abutting contact piece (9) are arranged in a matched mode.

2. The double seal structure for a fire protection and smoke exhaust fire damper of claim 1, wherein: first support contact (8) and second support contact (9) are located valve pipe (1) central line position both sides respectively, the combination is Y shape structure between first side strake (401) and the second side strake (402), the direction of rotation of pivot (7) is by second support contact (9) to first support contact (8) position motion.

3. A double sealing structure for a fire protection smoke evacuation fire protection valve according to claim 1, wherein: the bottom and the top of valve pipe (1) have all been seted up and have been led to the groove, and the inboard that leads to the groove has equal slip to inlay rubber strip (6), two the equal fixedly connected with drive plate (5) in one side that valve pipe (1) was kept away from in rubber strip (6).

4. A double sealing structure for a fire protection smoke exhaust fire damper according to claim 3, wherein: the upper end and the lower end of the rotating shaft (7) are fixedly connected with two threads (10) in a centrosymmetric mode, and the four threads (10) are arranged into 1/4 circles.

5. The double seal structure for a fire protection and smoke evacuation fire damper of claim 4, wherein: two recesses (501) have been seted up about pivot (7) central symmetry in transmission piece (5) middle section position department, and set up mutually supporting between recess (501) and screw thread (10), recess (501) are located screw thread (10) and are close to the one end of valve pipe (1), and rubber strip (6) and blade (4) laminate each other, recess (501) are located screw thread (10) and keep away from valve pipe (1) one end, separate between rubber strip (6) and blade (4).