CN212927479U

CN212927479U - Manual opening and closing mechanism for fire-fighting smoke exhaust window

Info

Publication number: CN212927479U
Application number: CN202020741841.9U
Authority: CN
Inventors: 吕建国
Original assignee: Zhejiang Yougesi Technology Co ltd
Current assignee: Zhejiang Yougesi Technology Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-04-09
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a manual opening and closing mechanism for a fire-fighting smoke exhaust window, which belongs to the technical field of smoke exhaust windows in high-rise buildings, and comprises at least one smoke exhaust window, a window frame and a window sash, wherein the window sash is movably arranged in the window frame; the closing mechanism is arranged between the window sash and the window frame, the window sash is closed in the window frame through the closing mechanism, and the window sash is automatically opened after the closing mechanism is opened; the smoke exhaust window is arranged on the wall body; the control bus is installed on the wall body, one end of the control bus is provided with a control mechanism, the other end of the control bus is provided with a manual control positioner, and the closing mechanism is connected with the control bus through a connecting wire. The advantage is that all the smoke exhaust windows can be conveniently opened at one time.

Description

Manual opening and closing mechanism for fire-fighting smoke exhaust window

Technical Field

The utility model relates to a smoke exhausting window technical field among the high-rise building especially relates to a manual hoist mechanism convenient to once open all smoke exhausting windows.

Background

At present, along with the rapid development of the building industry in China, the fire prevention and smoke exhaust work of high-rise buildings becomes one of the most important measures for protecting the high-rise buildings. Especially, smoke exhausting windows are arranged in smoke preventing stairwell rooms, fire elevator room rooms, shared rooms and the like near the outer edges of high-rise buildings. According to the regulation of national building design fire protection code GB0016-2014, the area of an effective smoke exhaust port of a window in a corridor or a room is not less than 2% of the area of the window, and meanwhile, a natural smoke exhaust window is required to be arranged on a ceiling or above an outer wall, and when the natural smoke exhaust window is arranged on the outer wall, the height from the lower edge (the calculation point of the effective natural window opening area) of the natural smoke exhaust window to the indoor ground is not lower than the height H (H is 1.6m +0.1 clearance height) of the lower edge of a smoke storage bin (or a smoke blocking vertical wall); for the walkway or the area with the indoor clear height of not more than 3m, the height of the lower edge of the natural smoke exhaust window from the indoor ground is not less than 1/2 of the clear height; the natural smoke exhaust window is opened along the airflow direction of fire smoke, a device which is convenient to open is arranged, and the window opening area which does not meet the requirement is not counted into the effective natural window opening area. The arrangement of the natural ventilation window of the staircase room, the front room and the shared front room also has corresponding requirements.

At present, most people die in a fire scene are not burned by fire but smoked by dense smoke, air in the fire scene is difficult to convect, high-temperature smoke cannot be exhausted, oxygen in the fire scene is exhausted, and people die in the fire scene due to multiple reasons, so that the important thing is to open all smoke exhaust windows in time when a fire disaster occurs.

For historical reasons, the existing natural lighting smoke exhaust windows in buildings in China are generally opened completely manually, and if a fire disaster happens to the windows at ordinary heights, people first escape in the first reaction time, and no people can think to open the windows. And for the high-position window, no one can handle the window opening, because the smoke exhaust windows are more and are positioned at the upper end of the wall, people can not be directly obtained when standing on the ground, and therefore, the people are more inconvenient to open the window with the heart. Therefore, the transformation of the old smoke exhaust window is urgent.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a manual hoist mechanism of fire control exhaust window is convenient for reform transform the exhaust window of old-fashioned, once can be convenient open all exhaust windows when the conflagration appears.

The technical scheme of the utility model as follows:

a manual opening and closing mechanism for a fire-fighting smoke exhaust window comprises

At least one smoke exhaust window is arranged on the upper surface of the frame,

comprises a window frame and a window sash, wherein the window sash is movably arranged in the window frame;

the closing mechanism is arranged between the window sash and the window frame, the window sash is closed in the window frame through the closing mechanism, and the window sash is automatically opened after the closing mechanism is opened;

the smoke exhaust window is arranged on the wall body;

the control bus is installed on the wall body, a control mechanism is arranged at one end of the control bus, a manual control positioner is arranged at the other end of the control bus, the closing mechanism is connected with the control bus through a connecting wire, and after the manual control positioner releases the control bus, the control bus moves towards the control mechanism under the driving of the control mechanism.

Preferably, the control mechanism is a first balancing weight, and when the manual control positioner loosens the control bus, the first balancing weight falls down under the action of gravity to drive the control bus to move towards the first balancing weight.

Preferably, the control mechanism is an elastic mechanism, one end of the elastic mechanism is fixedly connected to the wall body, the other end of the elastic mechanism is connected with the control bus, the elastic mechanism and the control bus are tightened under the action of the manual control positioner, and after the manual control positioner loosens the control bus, the control bus moves towards the elastic mechanism under the action of the elastic mechanism.

Further, the closing mechanism comprises a jack, and the jack is installed on the window sash;

a latch installed on the window frame, comprising

A latch tongue;

one side of the connecting rod is connected with the bolt tongue, and the other side of the connecting rod is connected with the connecting line;

the split pin is arranged on the connecting rod, and a spring is sleeved on the connecting rod between the split pin and the bolt tongue;

the bolt seat, the connecting rod that the cover was equipped with the spring is located in the bolt seat, and bolt seat both sides opening, the one side opening maximum diameter who keeps away from the bolt tongue is less than the length of split pin, and the opening that is close to bolt tongue one side can make the bolt tongue retract in the bolt seat.

Further, the closing mechanism further comprises

The bolt extends the fixed plate, the bolt extends the fixed plate and installs on the window frame, the bolt is installed on the bolt extends the fixed plate.

Furthermore, the window opening counterweight mechanism is arranged on the upper half side of the window sash.

Preferably, the method further comprises

The support is installed on the upper half side of the window sash, and the windowing counterweight mechanism is installed on the support.

Furthermore, the window opening counterweight mechanism comprises a counterweight connecting rod, and the counterweight connecting rod penetrates through the bracket from top to bottom to be installed;

the second balancing weight is at least one and is fixedly arranged on the balancing connecting rod at the lower side of the bracket; and the buffer spring is sleeved on the counterweight connecting rod on the upper side of the bracket.

Preferably, a damping connector is further included, the damping connector being connected between the window frame and the window sash.

Preferably, the manual positioner comprises a base which is arranged on the wall;

the handle is arranged on the base and is connected with the control bus;

and the handle is clamped in the limiting seat.

In another technical scheme, the manual control positioner comprises a hand-operated hoisting drum, and a control bus is wound on the hand-operated hoisting drum;

the ratchet wheel is coaxially connected with the hand-operated hoisting drum, and a limiting device is arranged on the outer side of the ratchet wheel;

and the winding drum handle is coaxially connected with the hand winding drum.

Preferably, the device further comprises a first control wire, and one end of the first control wire is connected with the closing mechanism;

the manual windowing handle is connected with the other end of the first control line;

the length of the connecting line is greater than the sum of the linear distance from the connecting position of the connecting line and the control bus to the closing mechanism and the total length of the closing mechanism.

Preferably, the device further comprises a first control wire, and one end of the first control wire is connected with the connecting rod;

the length of the connecting line is greater than the sum of the linear distance from the connecting position of the connecting line and the control bus to the cotter pin and the total length of the pin seat.

Preferably, the method further comprises

The first control line is arranged in a sleeve, and the sleeve is installed on the wall body.

Preferably, the window frame further comprises a through hole, and the through hole is formed in the window frame;

one side of the second control wire penetrates through the through hole and is connected with the window sash;

and the window closing handle is connected with the other side of the second control line.

Preferably, the method further comprises

The limiting sleeves are mounted on the wall body, and the control bus penetrates through the two limiting sleeves;

the positioning block is fixedly installed on the control bus, is located between the two limiting sleeves and cannot penetrate through the limiting sleeves. The utility model has the advantages that: 1. the old smoke exhaust window can be conveniently reconstructed, and the reconstruction cost is low; 2. in emergency, all smoke exhaust windows can be easily and quickly opened at one time; 3. one smoke exhaust window can be opened independently without influencing other smoke exhaust windows.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a single window construction;

fig. 3 is a schematic view of a structure in which a window sash is opened;

FIG. 4 is a schematic view of a window counterweight mechanism;

FIG. 5 is a schematic view of the latch tongue extended in the closure mechanism;

FIG. 6 is a schematic view of the latch tongue retracted into the latch seat in the closing mechanism;

FIG. 7 is a schematic diagram of a manual positioner closure configuration in one embodiment;

FIG. 8 is a schematic diagram of an embodiment of a manual positioner shown open;

FIG. 9 is a schematic diagram of a manual positioner according to another embodiment;

1. a wall body; 2. a window frame; 3. a window sash; 4. a closing mechanism; 4.1, connecting rods; 4.2, a cotter pin; 4.3, a bolt seat; 4.4, a spring; 4.5, bolt tongue; 4.6, a jack; 4.7, bolt extension fixing plates; 5. a connecting wire; 6. a control bus; 7. a first weight block; 8. a first control line; 9. a manual windowing handle; 10. a window closing handle; 11. a second control line; 12. a fixed pulley; 13. a limiting sleeve; 14. positioning blocks; 15. a damping connection; 16. a support; 17. a window counterweight mechanism; 17.1, a counterweight connecting rod; 17.2, a second balancing weight; 17.3, a buffer spring; 18. a manual control positioner; 18.1, a base; 18.2, a handle; 18.3, a limiting seat; 18.4, a hand-cranking winding drum; 18.5, ratchet wheel; 18.6, a winding drum handle.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

As shown in fig. 1, the utility model discloses a manual opening and closing mechanism for a fire-fighting smoke exhaust window, which comprises at least one smoke exhaust window, a window frame 2 and a window sash 3, wherein the window sash 3 is movably arranged in the window frame 2; the closing mechanism 4 is arranged between the window sash 3 and the window frame 2, the window sash 3 is closed in the window frame 2 through the closing mechanism 4, and the window sash 3 is automatically opened after the closing mechanism 4 is opened; the smoke exhaust window is arranged on the wall body 1; the control bus 6, the control bus 6 is installed on the wall body 1, and control bus 6 one end is equipped with first balancing weight 7, first balancing weight 7 is at least one, and the control bus 6 other end is provided with manual control locator 18, and closing mechanism 4 is connected with control bus 6 through connecting wire 5. After the manual control positioner 18 is opened, the first balancing weight 7 falls downwards under the action of gravity, the control bus 6 moves towards the first balancing weight 7 under the pulling of the first balancing weight 7, the connecting wire 5 is pulled, the connecting wire 5 controls the closing mechanism 4 to be opened, and the window sash 3 and the window frame 2 are not closed any more.

As shown in fig. 2, 5 and 6, the closing mechanism 4 comprises a receptacle 4.6, the receptacle 4.6 being mounted on the sash 3; the bolt is arranged on the window frame 2 and comprises a bolt tongue 4.5; one side of the connecting rod 4.1 is connected with the bolt tongue 4.5, and the other side of the connecting rod 4.1 is connected with the connecting wire 5; the cotter 4.2, the said cotter 4.2 is set up on tie rod, 4.4 of spring is fitted over the tie rod 4.1 between cotter 4.2 and bolt tongue 4.5; the bolt seat 4.3, the connecting rod 4.1 which is sleeved with the spring 4.4 are arranged in the bolt seat 4.3, openings are arranged at two sides of the bolt seat 4.3, the maximum diameter of the opening at one side far away from the bolt tongue 4.5 is smaller than the length of the cotter pin 4.2, and the opening at one side near the bolt tongue 4.5 can enable the bolt tongue 4.5 to be retracted into the bolt seat 4.3.

Further, as shown in fig. 1, the closing mechanism 4 further includes a latch extension fixing plate 4.7, the latch extension fixing plate 4.7 is mounted on the window frame 2, and the latch is mounted on the latch extension fixing plate 4.7.

Further, the window opening counterweight mechanism 17 is further included, and the window opening counterweight mechanism 17 is installed on the upper half side of the window sash 3. Preferably, the window further comprises a bracket 16, wherein the bracket 16 is installed on the upper half side of the window sash 3, and the windowing counterweight mechanism 17 is installed on the bracket 16.

Further, as shown in fig. 3 and 4, the windowing weight mechanism 17 comprises a weight connecting rod 17.1, and the weight connecting rod 17.1 is installed through the bracket 16 from top to bottom; the second balancing weight 17.2, said second balancing weight 17.2 is at least one, the second balancing weight 17.2 is fixedly mounted on the counterweight connecting rod 17.1 of the underside of the support 16; and the buffer spring 17.3 is sleeved on the counterweight connecting rod 17.1 on the upper side of the bracket 16.

Preferably, as shown in fig. 3, a damping connector 15 is further included, and the damping connector 15 is connected between the window frame 2 and the window sash 3.

Preferably, as shown in fig. 7 and 8, the manual positioner 18 comprises a base 18.1 mounted on the wall 1; a handle 18.2 mounted on the base 18.1 and connected to the control bus 6; the limiting seat 18.3, the handle 18.2 is blocked in the limiting seat 18.3.

In another technical solution, as shown in fig. 9, the manual positioner 18 includes a hand-operated winding drum 18.4, and the control bus 6 is wound up on the hand-operated winding drum 18.4; the ratchet wheel 18.5 is coaxially connected with the hand-operated hoisting drum 18.4, and a limiting device is arranged on the outer side of the ratchet wheel 18.5; and a winding drum handle 18.6 which is coaxially connected with the hand winding drum 18.4.

Preferably, as shown in fig. 1, the device further comprises a first control wire 8, and one end of the first control wire 8 is connected with the closing mechanism 4; the manual windowing handle 9 is connected with the other end of the first control wire 8; the length of the connection line 5 is greater than the sum of the linear distance from the connection of the connection line 5 and the control bus 6 to the closing mechanism 4 plus the total length of the closing mechanism 4.

Preferably, as shown in fig. 1, the device further comprises a first control wire 8, and one end of the first control wire 8 is connected with the connecting rod 4.1; the manual windowing handle 9 is connected with the other end of the first control wire 8; the length of the connecting line 5 is greater than the sum of the linear distance from the connection of the connecting line 5 and the control bus 6 to the cotter pin 4.2 and the total length of the pin holder 4.3.

Preferably, the wall body further comprises a sleeve, wherein the first control line is arranged in the sleeve, and the sleeve is installed on the wall body.

Preferably, the window frame further comprises a through hole, and the through hole is formed in the window frame 2; one side of the second control wire 11 passes through the through hole and is connected with the window sash 3; and the window closing handle 10 is connected with the other side of the second control wire 11.

Preferably, the wall body structure further comprises two limiting sleeves 13, wherein the limiting sleeves 13 are mounted on the wall body 1, and the control bus 6 penetrates through the two limiting sleeves 13; and the positioning block 14 is fixedly installed on the control bus 6, is positioned between the two limiting sleeves 13, and cannot penetrate through the limiting sleeves 13.

Example 1:

as shown in fig. 1, 7 and 8, before an emergency fire occurs, the manual control positioner 18 is locked, the handle 18.2 is clamped on the limiting seat 18.3, the control bus is tightened under the action of the first balancing weight 7, when an emergency fire occurs, the manual control positioner 18 is unlocked, the handle 18.2 is clamped on the limiting seat 18.3, the handle 18.2 is pushed upwards after unlocking, the control bus 6 connected to the handle 18.2 is driven to move upwards, the control bus 6 is loosened, the first balancing weight 7 falls downwards under the action of gravity, the loosened control bus 6 is driven to move leftwards, the connecting line 5 is pulled to move leftwards, as shown in fig. 5 and 6, the connecting line 5 pulls the connecting rod 4.1 to drive the plug tongue 4.5 to retract into the plug seat 4.3 from the plug hole 4.6, at the moment, the plug tongue 4.5 retracts into the plug seat 4.3, and has a tendency of popping outwards under the action of the spring 4.4, the window sash 3 and the window frame 2 are no longer restrained by the closing mechanism 4, as shown in fig. 3, the window sash 3 is driven by the window opening counterweight mechanism 17 to be opened outwards, and in order to prevent the smoke exhaust window from being opened too fast, the smoke exhaust window is impacted, the damping connecting piece 15 is arranged, so that the window sash 3 is under a damping force in the opening process, the opening speed is not too fast, the impact force is not generated, and the buffer spring 17.3 is used for preventing the second counterweight 17.2 from generating too much impact force. The first balancing weight 7 is limited by the limiting sleeves 13, the falling stroke of the first balancing weight 7 depends on the distance between the two limiting sleeves 13, and the positioning block 14 can prevent the first balancing weight 7 from infinitely falling to break the whole system. In principle, this makes it possible to open all the smoke windows connected to the control bus 6 quickly. After the fire is over, the handle 18.2 is pulled back downwards, the control bus 6 moves rightwards, the control bus is reset, and the bolt 4.5 in the bolt seat 4.3 is ejected out of the bolt seat 4.3 under the action of the spring 4.4.

In this embodiment, as shown in fig. 1, the window sash 3 is disposed in the middle of the window frame 2, the window sash 3 is thinner, the window frame 2 is thicker, and therefore the closing mechanism 4 is disposed inside the window frame 2, and the closing mechanism 4 is not parallel to the outer surface of the window frame 2, and therefore, a bolt extension fixing plate 4.7 is installed on the outer surface of the window frame 2, and the bolt extension fixing plate 4.7 is "L" shaped, so that the bolt can be installed conveniently, the connecting wire 5 does not need to be wound out of the window frame 2, and friction between the connecting wire 5 and the window frame 2 is avoided.

Example 2:

in this embodiment, as shown in fig. 2, the outer surfaces of the window sash 3 and the window frame 2 are parallel, so the closing mechanism 4 in most of the cases is vertically arranged, but because the control bus 6 moves transversely, a fixed pulley 12 is added, the pulleys shown in the drawings of the present invention are fixed pulleys, so that the connecting line 5 is wound around the fixed pulley 12, the force direction of the connecting line 5 is changed, the control bus 6 moving transversely can drive the connecting rod 4.1 in the vertically arranged closing mechanism 4 to move, and the rest is the same as that in embodiment 1.

Example 3:

in this embodiment, as shown in fig. 1 and 9, the manual control positioner 18 is composed of a manual winding drum 18.4, a ratchet 18.5 and a winding drum handle 18.6, in the absence of fire, the ratchet 18.5 is clamped by a limiting device, the control bus 6 is tightened by the first counterweight 7, when an emergency fire occurs, the ratchet 18.5 is released, the winding drum handle 18.6 is shaken, the control bus 6 moves leftwards under the action of the first counterweight 7, so that the connecting wire 5 pulls the connecting rod 4.1 to drive the plug bolt 4.5 to retract into the plug bolt seat 4.3 from the plug bolt 4.6, the window sash 3 and the window frame 2 are no longer constrained by the closing mechanism 4, and as shown in fig. 3, the window sash 3 is driven by the window opening counterweight mechanism 17 to open outwards.

Example 4:

as shown in fig. 1, sometimes, for ventilation, all the smoke discharge windows may not be opened, and only one or two smoke discharge windows may be opened, so that when a certain smoke discharge window is opened alone, the manual window opening handle 9 may be pulled to drive the first control line 8, and the connecting rod 4.1 is pulled to open a single smoke discharge window, and since the connecting line 5 itself is loose, the manual window opening handle 9 is pulled, and other smoke discharge windows are not affected.

Example 5:

as shown in fig. 1 and 3, when the smoke exhaust window is closed, the window closing handle 10 is pulled, the window sash 3 is pulled to be closed upwards, the latch bolt 4.5 rebounds to the jack 4.6, so that the smoke exhaust window is closed, the principle of the latch bolt 4.5 is consistent with that of a lock bolt of a door lock, the smoke exhaust window belongs to the known technology, and the smoke exhaust window is not unfolded.

Example 6:

as shown in fig. 1, 7 and 8, in this embodiment, the first counterweight 7 is replaced by an elastic mechanism, one end of the elastic mechanism is fixed on the wall 1, the other end of the elastic mechanism is connected with the control bus 6, before an emergency fire occurs, the manual control positioner 18 is locked, the handle 18.2 is clamped on the limit seat 18.3, the control bus 6 is tightened under the action of the first counterweight 7, the elastic mechanism is also in a tight state, when an emergency fire occurs, the manual control positioner 18 is unlocked, the handle 18.2 is clamped on the limit seat 18.3 before, after the unlocking, the handle 18.2 is pushed upwards, the control bus 6 connected on the handle 18.2 is driven to move upwards, the control bus 6 is loosened, the elastic mechanism retracts due to the elastic force, the loosened control bus 6 is driven to move leftwards, the connecting line 5 is pulled leftwards, as shown in fig. 5 and 6, the connecting line 5 pulls the connecting rod 4.1 to drive the jack 4.5 to retract into the plug seat 4.3 from the jack 4.6, at this moment, the latch bolt 4.5 is retracted into the latch seat 4.3, a trend of outward ejection exists under the action of the spring 4.4, the window sash 3 and the window frame 2 are no longer restrained by the closing mechanism 4, as shown in fig. 3, the window sash 3 is driven by the window opening counterweight mechanism 17 to be opened outwards, in order to prevent the smoke exhaust window from being opened too fast, the smoke exhaust window is impacted, the damping connecting piece 15 is arranged, the window sash 3 is enabled to receive a damping force in the opening process, the opening speed is not too fast, the impact force is not generated, and the buffer spring 17.3 also has the effect of preventing the second counterweight block 17.2 from generating too much impact force. The limit of the limit sleeve 13 is adopted, the retraction stroke of the elastic mechanism depends on the distance between the two limit sleeves 13, and the positioning block 14 can prevent the retraction stroke of the elastic mechanism from being too long, so that the whole system is broken. In principle, this makes it possible to open all the smoke windows connected to the control bus 6 quickly. After the fire is over, the handle 18.2 is pulled back downwards, the control bus 6 moves rightwards, the control bus is reset, and the bolt 4.5 in the bolt seat 4.3 is ejected out of the bolt seat 4.3 under the action of the spring 4.4. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a manual operating device of fire control smoke exhausting window which characterized in that: comprises that

the smoke exhaust window is arranged on the wall body;

2. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the control mechanism is a first balancing weight, and when the manual control positioner loosens the control bus, the first balancing weight falls under the action of gravity to drive the control bus to move towards the first balancing weight.

3. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the control mechanism is an elastic mechanism, one end of the elastic mechanism is fixedly connected to the wall body, the other end of the elastic mechanism is connected with the control bus, the elastic mechanism and the control bus are tightened under the action of the manual control positioner, and after the manual control positioner loosens the control bus, the control bus moves towards the elastic mechanism under the action of the elastic mechanism.

4. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the closing mechanism comprises a jack, and the jack is installed on the window sash;

a latch installed on the window frame, comprising

A latch tongue;

5. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 4, wherein: the closing mechanism further comprises a bolt extending fixing plate, the bolt extending fixing plate is installed on the window frame, and the bolt is installed on the bolt extending fixing plate.

6. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the window is characterized by further comprising a window counterweight mechanism, wherein the window counterweight mechanism is arranged on the upper half side of the window sash.

7. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 6, wherein: the window opening counterweight mechanism is characterized by further comprising a support, wherein the support is arranged on the upper half side of the window sash, and the window opening counterweight mechanism is arranged on the support.

8. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 7, wherein: the window counterweight mechanism comprises a counterweight connecting rod, and the counterweight connecting rod penetrates through the bracket from top to bottom to be installed;

9. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the window frame further comprises a damping connecting piece, and the damping connecting piece is connected between the window frame and the window sash.

10. A manual opening and closing mechanism for a fire and smoke exhaust window as defined in any one of claims 1 to 9, wherein: the manual positioner comprises

The base is arranged on the wall body;

the handle is arranged on the base and is connected with the control bus;

and the handle is clamped in the limiting seat.

11. A manual opening and closing mechanism for a fire and smoke exhaust window as defined in any one of claims 1 to 9, wherein: the manual positioner comprises

The control bus is wound on the hand-cranking winding drum;

and the winding drum handle is coaxially connected with the hand winding drum.

12. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the closing mechanism is connected with the control device through a first control wire;

13. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 4, wherein: the connecting rod is connected with the first control line;

14. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 12 or 13, wherein: also comprises

15. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the window frame is characterized by also comprising a through hole, wherein the through hole is arranged on the window frame;

16. The manual opening and closing mechanism for the fire and smoke exhaust window of claim 1, wherein: the wall body is characterized by also comprising two limiting sleeves, wherein the limiting sleeves are arranged on the wall body, and the control bus penetrates through the two limiting sleeves;

the positioning block is fixedly installed on the control bus, is located between the two limiting sleeves and cannot penetrate through the limiting sleeves.