CN217538276U - Micro-ventilation structure and door and window ventilation system - Google Patents

Abstract

The utility model relates to a ventilation structure and door and window ventilation system a little. The micro ventilation structure comprises a locking block and a corner device; the locking block is arranged on the frame section bar, and a guide groove is formed in the locking block; the corner device comprises a transmission rod and a locking point connected with the transmission rod, and the transmission rod is connected with the fan-shaped section in a sliding mode; the locking point can be inserted into the guide groove and moves in the guide groove so as to limit the opening angle of the sash section relative to the frame section. When needs are ventilated a little, move for the fan section bar through the transfer line, lock point and transfer line synchronous movement for the lock point slides in the guide way, because the lateral wall of guide way is spacing to the lock point, carries on spacingly to the opening angle of the relative frame section bar of fan section bar, thereby realizes ventilating a little.

Description

Micro-ventilation structure and door and window ventilation system

Technical Field

The utility model relates to a building door and window technical field especially relates to ventilation structure and door and window ventilation system a little.

Background

The door and window is an important component of building modeling and has the functions of heat preservation, ventilation, diaphragm sound, lighting and the like. The door and window comprises a sliding door and window, an upper suspension type door and window, a lower suspension type door and window, an outward turning window, a casement window and the like. At present, the window is usually used for an inward opening and inward tilting window in the market, namely the inward opening and inward tilting window has two states, the distance between a window sash and a window frame is large in the two states of the inward opening and the inward tilting window, and when the window is closed in winter in the north, the indoor space is cold, and the ventilation cannot be realized.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a micro ventilation structure for solving the technical problem that the opening distance is large when the door and window is opened and tilted inwards, which results in cold rooms.

A micro-venting structure, comprising:

the locking block is arranged on the frame profile, and a guide groove is formed in the locking block;

the corner device comprises a transmission rod and a locking point connected with the transmission rod, and the transmission rod is connected with the fan-shaped section in a sliding mode; the locking point can be inserted into the guide groove and moves in the guide groove so as to limit the opening angle of the sash section relative to the frame section.

In one embodiment, the guide groove includes a tapered section and a circular arc section connected to a tail portion of the tapered section, and a central position of the circular arc section has an offset with respect to a central position of the tapered section in a sliding-in direction of the locking point.

In one embodiment, the reducing section is provided with a first inclined surface and a second inclined surface which are oppositely arranged and connected to two sides of the circular arc section, and the second inclined surface and the circular arc section are in smooth transition; the second inclined surface has a slope greater than a slope of the first inclined surface.

In one embodiment, the micro-venting structure further comprises a swivel plate and a locking lever; one end of the locking rod penetrates through the transmission rod to be connected to the rotating plate, and the locking point is connected to the rotating plate; the rotating plate can rotate around the axis of the locking rod relative to the transmission rod, and the locking point and the rotating plate rotate synchronously.

In one embodiment, the micro-venting structure further comprises an elastic member; the elastic piece is sleeved on the locking rod, one end of the elastic piece abuts against one end of the locking rod, the other end of the elastic piece abuts against one side, deviating from the rotating plate, of the transmission rod, and the elastic piece is used for exerting acting force, moving towards one side, deviating from the rotating plate, on the locking rod.

In one embodiment, the transmission rod is provided with a groove matched with the rotating plate, and the rotating plate is accommodated in the groove;

when the rotating plate rotates relative to the transmission rod, the locking point can drive the rotating plate to be located on the outer side of the groove.

In one embodiment, the micro-ventilation structure further comprises an actuator mounted to the fan-shaped section;

the driver comprises a gear and a rack meshed with the gear for transmission; the gear is connected to the handle through a rotating shaft, and the rack is connected to the transmission rod;

the gear drives the transmission rod to slide relative to the fan-shaped section through the rack under the action of rotation of the handle.

In one embodiment, the driver further comprises a connecting plate mounted on the sector bar, one end of the connecting plate being connected to the rack and the other end being connected to the transmission rod.

In one embodiment, the number of the guide grooves is two, and the two guide grooves are arranged in a mirror image mode in the second direction.

The utility model also provides a door and window ventilation system can solve above-mentioned at least one technical problem.

A door and window ventilation system comprises the micro ventilation structure, a sash profile and a frame profile, wherein the micro ventilation structure is used for limiting the opening angle of the sash profile relative to the frame profile.

The utility model provides a micro ventilation structure, which comprises a locking block and a corner device; the locking block is arranged on the frame section bar, and a guide groove is formed in the locking block; the corner device comprises a transmission rod and a locking point connected with the transmission rod, and the transmission rod is connected with the sash section in a sliding manner; the locking point can be inserted into the guide groove and moves in the guide groove so as to limit the opening angle of the sash section relative to the frame section. When needs are ventilated a little, move for the fan section bar through the transfer line, lock point and transfer line synchronous movement for the lock point slides in the guide way, because the lateral wall of guide way is spacing to the lock point, carries on spacingly to the opening angle of the relative frame section bar of fan section bar, thereby realizes ventilating a little.

The utility model provides a door and window ventilation system, including foretell little ventilation structure, can realize at least one technological effect.

Drawings

Fig. 1a is a first schematic view of a micro-ventilation structure provided in an embodiment of the present invention;

fig. 1b is a second schematic view of a micro-ventilation structure provided in an embodiment of the present invention;

fig. 2 is a schematic view of a locking block in a micro-ventilation structure provided by an embodiment of the present invention;

FIG. 3 illustrates an actuator in a micro-venting configuration in accordance with an embodiment of the present invention;

fig. 4 is a first schematic view of a corner device in a micro ventilation structure according to an embodiment of the present invention;

fig. 5 is a second schematic view of the corner turning device in the micro ventilation structure according to the embodiment of the present invention;

fig. 6 is a partial exploded view of the corner device in the micro ventilation structure according to the embodiment of the present invention;

fig. 7 is a schematic view of a part of a door and window ventilation system according to an embodiment of the present invention.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1a and 1b, fig. 1a is a first schematic view of a micro-ventilation structure according to an embodiment of the present invention; fig. 1b is a second schematic view of a micro-ventilation structure provided in an embodiment of the present invention; the utility model provides a micro ventilation structure, which comprises a locking block 200 and a corner device 100; the locking block 200 is mounted on the frame profile 400, and the locking block 200 is provided with a guide groove 210; the corner tool 100 comprises a transmission rod 110 and a locking point 130 connected to the transmission rod 110, the transmission rod 110 being slidably connected to the fan-shaped section 300; the locking point 130 can be inserted into the guide groove 210 and moved within the guide groove 210 to limit the opening angle of the sash profile 300 with respect to the frame profile 400. When micro ventilation is required, the transmission rod 110 moves relative to the fan-shaped section 300, the locking point 130 and the transmission rod 110 move synchronously, so that the locking point 130 slides into the guide groove 210, and the side wall of the guide groove 210 limits the locking point 130, so that the opening angle of the fan-shaped section 300 relative to the frame-shaped section 400 is limited, and micro ventilation is realized. Wherein, the first direction is defined as the height direction of the frame profile 400, the second direction is defined as the thickness direction of the frame profile 400, and the third direction is defined as the width direction of the frame profile 400. For convenience of description, the following description is made in terms of a first direction, a second direction, and a third direction.

Specifically, the locking block 200 is mounted on the face of the frame profile 400 facing the sash profile 300, the corner device 100 is mounted on the face of the sash profile 300 facing the frame profile 400, and the transmission rod 110 is slidable in the first direction relative to the sash profile 300. When the transmission rod 110 is slid in a first direction relative to the sash-section bar 300, the locking point 130 can slide into the guide groove 210 and slide in the guide groove 210. After the locking point 130 slides a distance in the guide groove 210, it abuts against the bottom wall of the guide groove 210, so that the locking point 130, that is, the opening angle of the sash profile 300 with respect to the frame profile 400, can be limited.

Referring to fig. 1a, fig. 1b and fig. 2, fig. 2 is a schematic view of a locking block in a micro ventilation structure according to an embodiment of the present invention. In one embodiment, the guide groove 210 includes a tapered section 212 and a circular arc section 211 connected to a rear portion of the tapered section 212 in the sliding-in direction of the locking point 130, and a center position of the circular arc section 211 has an offset amount with respect to a center position of the tapered section 212.

Specifically, the locking point 130 slides into the opening of the tapered section 212 and then slides into the arc section 211 along the tapered section 212. Since the center position of the circular arc section 211 has an offset with respect to the center position of the reduced section 212, after the locking point 130 slides from the reduced section 212 into the circular arc section 211, it moves in the second direction with respect to the locking block 200, so that the sash-shaped material 300 is opened with respect to the frame-shaped material 400. The tapered section 212 is provided such that the guide groove 210 has a larger opening, so that the locking point 130 can be accurately slid into the guide groove 210 and into the circular arc section 211 along the direction of the taper of the tapered section 212. The arc section 211 is arranged to limit the movement of the locking point 130 relative to the locking block 200 along the second direction, so that the opening angle of the sash profile 300 relative to the frame profile 400 is limited, the sash profile 300 is prevented from deviating relative to the frame profile 400 when being affected by wind force and the like, and micro ventilation is guaranteed. Meanwhile, the collision between the sash profile 300 and the wall surface and the like can be avoided, and the sash profile 300 is protected.

With continued reference to fig. 1a, 1b and fig. 2, in one embodiment, the tapered section 212 has a first inclined surface 218 and a second inclined surface 219, which are disposed opposite to each other and connected to both sides of the circular arc section 211, and the second inclined surface 219 smoothly transitions to the circular arc section 211; the slope of the second inclined surface 219 is less than the slope of the first inclined surface 218.

Specifically, at the time of the micro ventilation, the locking point 130 moves from the opening of the tapered section 212 in the first direction to abut against the second inclined surface 219, and then moves to the circular arc section 211 along the inclined direction of the second inclined surface 219. Wherein, the second inclined surface 219 smoothly transitions with the circular arc segment 211, so that the locking point 130 can smoothly move from the second inclined surface 219 to the circular arc segment 211. And the slope of the second inclined surface 219 is greater, so as to better adapt to the limit of the arc segment 211 to the locking point 130. The first inclined surface 218 has a small slope so that the tapered end 212 has a large opening, thereby facilitating the insertion of the locking point 130 into the guide groove 210.

Further, a corner is formed between the first inclined surface 218 and the circular arc section 211, so that when the locking point 130 is located in the circular arc section 211, the locking point 130 can be subjected to forces on two sides of the circular arc section 211 along the second direction, and therefore the movement of the locking point 130 along the second direction is limited, that is, the opening angle of the sash section 300 relative to the frame section 400 is limited.

Referring to fig. 1a, 1b and 3, fig. 3 is a driver in a micro ventilation structure according to an embodiment of the present invention. In one embodiment, the micro ventilation structure further comprises an actuator 500; the driver 500 comprises a gear 520 and a rack 530 which is meshed with the gear 520 for driving; the gear 520 is connected to the handle 510 through a rotating shaft, and the rack 530 is connected to the transmission rod 110; under the action of the rotation of the handle 510, the gear 520 drives the transmission rod 110 to slide relative to the fan-shaped section 300 through the rack 530. The gear 520 is disposed to be engaged with the rack 530, so that the driving rod 110 can be smoothly moved. Simultaneously, gear 520 is connected in handle 510 through a pivot to when rotating handle 510 and opening the casement, can realize little ventilation, convenient laborsaving.

Specifically, the rack 530 extends along a first direction, and when the handle 510 is rotated, the handle 510 can drive the gear 520 to rotate around the axis direction of the gear 520, so that the gear 520 rotates to drive the rack 530 to move along the first direction, and the transmission rod 110 and the rack 530 move synchronously.

Further, a square shaft 511 is provided at one end of the lever handle 510, a square shaft hole 521 fitted to the square shaft 511 is provided at the center of the gear 520, and the square shaft 511 can be inserted into the square shaft hole 521. Due to the fact that the Fang Zhoukong side wall is limited to the square shaft 511, when the handle 510 rotates, the gear 520 can be driven to rotate synchronously, and therefore the rack 530 is driven to move.

Referring to fig. 3, in one embodiment, actuator 500 further includes an attachment plate 540 mounted to sector bar 300, with one end of attachment plate 540 attached to gear 520 and the other end attached to drive link 110. By adjusting the length of the connecting plate 540, the distance between the rack 530 and the transmission rod 110 can be adjusted, and the lever handle 510 is used for controlling the rotation of the gear 520, so that the position of the lever handle 510 relative to the frame profile 400 is adjustable, that is, the height of the lever handle 510 is adjustable, and the operation is convenient.

When micro ventilation is required, the knob 510 is rotated to rotate the gear 520 relative to the rack 530, so that the transmission rod 110 is driven to move in the first direction, and the locking point 130 moves synchronously with the transmission rod 110, so that the locking point 130 can slide into the guide groove 210. With the continuous rotation of the handle 510, the locking point 130 slides from the reduction section 212 to the circular arc section 211 along the second inclined surface 219, and abuts against the bottom wall of the circular arc section 211, at this time, the transmission rod 110 cannot move, the gear 520 and the rack 530 cannot move relatively, the handle 510 cannot rotate continuously, and at this time, the fan-shaped section 300 has a certain opening angle relative to the frame-shaped section 400.

When ventilation is not required, only the lever handle 510 needs to be rotated slightly so that the fan profile 300 is opened relative to the frame profile 400. Because the rotation angle of the handle 510 is small, the distance that the transmission rod 110 drives the locking point 130 to move towards the locking block 200 along the first direction is not enough to enable the locking point 130 to slide into the guide groove 210, so that the locking block 200 cannot limit the locking point 130, and the sash profile 300 is normally opened relative to the frame profile 400. It should be noted that, the handle 510 is rotated to open the fan-shaped section 300 relative to the frame-shaped section 400 in the prior art, and therefore, the description thereof is omitted.

Referring to fig. 4 and 5, fig. 4 is a first schematic view of a corner device in a micro ventilation structure according to an embodiment of the present invention; fig. 5 is a second schematic view of the corner device in the micro-ventilation structure according to an embodiment of the present invention. In one embodiment, the micro-venting structure further comprises a swivel plate 140 and a locking lever 150; one end of the locking lever 150 passes through the transmission lever 110 to be connected to the rotation plate 140, and the locking point 130 is connected to the rotation plate 140; the rotating plate 140 can rotate about the axis of the locking lever 150 with respect to the driving lever 110, and the locking point 130 rotates in synchronization with the rotating plate 140.

Specifically, lock point 130 is disposed at an end of rotation plate 140. It should be noted that the movement stroke of the transmission rod 110 relative to the fan-shaped member 300 is smaller than the stroke of the locking point 130 from the side of the rotating plate 140 away from the locking block 200 to the guide groove 210. When the micro ventilation needs to be considered, the window sash is opened, the rotating plate 140 is rotated to ensure that the locking point 130 is arranged on one side of the rotating plate 140 close to the locking block 200, and thus the distance that the transmission rod 110 drives the locking point 130 to move along the first direction is controlled by controlling the rotation angle of the handle 510, so that the sash section 300 is opened relative to the frame section 400 or has a certain opening angle; when the micro ventilation is not needed, the window sash is opened first, and the rotating plate 140 is rotated to ensure that the locking point 130 is disposed at a side of the rotating plate 140 away from the locking block 200, and no matter how many angles the handle 510 is rotated, the transmission rod 110 cannot drive the locking point 130 to slide into the guide groove 210, and the locking point 130 cannot be limited in the second direction. Therefore, the opening angle of the sash profile 300 with respect to the frame profile 400 is not limited by the locking block 200, and the sash profile 300 is normally opened with respect to the frame profile 400.

Further, the driving lever 110 is provided with a mounting hole 111 extending in the third direction, and one end of the locking lever 150 is connected to the rotation plate 140 through the mounting hole 111. This arrangement makes the connection of the locking point 130 to the driving rod 110 more stable.

Referring to fig. 4, 5 and 6, fig. 6 is a partial exploded view of a corner device in a micro ventilation structure according to an embodiment of the present invention. In one embodiment, the micro-venting structure further comprises a resilient member 160; the elastic member 160 is sleeved on the locking lever 150, one end of the elastic member 160 abuts against one end of the locking lever 150, the other end abuts against one side of the transmission rod 110 departing from the rotation plate 140, and the elastic member 160 is used for applying an acting force to the locking lever 150 to move towards the side departing from the rotation plate 140. The elastic member 160 is disposed such that the rotation plate 140 is forced toward the transmission lever 110 in the third direction, thereby causing the rotation plate 140 to be closely attached to the transmission lever 110 and increasing a frictional force between the rotation plate 140 and the transmission lever 110. When the locking point 130 moves in the guide groove 210 and receives a sliding friction force, because the friction force between the rotating plate 140 and the transmission rod 110 is large, the force received by the locking point 130 is not enough to drive the locking point 130 to drive the rotating plate 140 to move, so that the rotating plate 140 is fixed relative to the transmission rod 110, and the locking point 130 and the locking block 200 are matched to realize micro ventilation. Preferably, the elastic member 160 is a spring.

Further, the locking lever 150 includes an abutting end 151 and a connecting end 152, and the abutting end 151 has a diameter larger than that of the connecting end 152. The spring is sleeved on the connecting end 152, one end of the connecting end 152, which is far away from the abutting end 151, is connected to the rotating plate 140, one end of the spring abuts against the end surface of the abutting end 151, and the other end abuts against one side of the transmission rod 110, which is far away from the rotating plate 140, so that a force is applied to the rotating plate 140 towards the transmission rod 110 along the third direction.

Further, the mounting hole 111 is a stepped hole, so that the abutting end 151 can be received in the stepped hole when the locking lever 150 is inserted into the stepped hole. With the arrangement, one side of the spring, which is far away from the abutting end 151, abuts against the bottom wall of the stepped hole, so that the spring is limited through the side wall of the stepped hole, and the spring is prevented from deviating.

With continued reference to fig. 4, 5, and 6, in one embodiment, the transmission rod 110 is provided with a groove 112 adapted to the rotation plate 140, and the rotation plate 140 is configured to be accommodated in the groove 112; when the rotating plate 140 rotates relative to the transmission rod 110, the locking point 130 can drive the rotating plate 140 to be located outside the groove 112.

Specifically, the groove 112 communicates with the mounting hole 111. Since the rotation plate 140 is urged toward the rotation plate 140 in the third direction by the spring, the rotation plate 140 can be always accommodated in the groove 112. When the locking point 130 is subjected to the friction force of the inner wall of the guide groove 210, the inner wall of the groove 112 can limit the position of the rotating plate 140, so that the rotating plate 140 cannot rotate relative to the transmission rod 110, and the locking point 130 stably moves in the guide groove 210. The rotating plate 140 is elongated, so that the rotating plate 140 cannot rotate relative to the transmission rod 110 in the elongated groove 112. Preferably, the periphery of the rotation plate 140 is rounded, when the locking point 130 is subjected to the friction force of the side wall of the guide groove 210, the rotation plate 140 is subjected to a certain rotational force relative to the transmission rod 110, and the rounded chamfer is provided to prevent the inner wall of the groove 112 from being worn, thereby prolonging the service life of the transmission rod 110.

Further, when the position of the locking point 130 relative to the locking block 200 needs to be adjusted, the locking point 130 is pulled toward the frame profile 400 side along the third direction, and at this time, the abutting end 151 moves toward the frame profile 400 along the third direction, and the spring is compressed, so that the rotating plate 140 extends out of the groove 112. At this time, since the rotation plate 140 is not limited by the sidewall of the groove 112, the rotation plate 140 is rotated by 180 degrees, so that the locking point 130 can move along the first direction relative to the locking block 200, and then the locking point 130 is released, the spring is stretched, and the rotation plate 140 is limited in the groove 112 again.

Furthermore, the locking lever 150 further includes a mating end 153, the mating end 153 is connected to an end of the connecting end 152 away from the abutting end 151, a locking hole 141 is formed on the rotating plate 140, and the mating end 153 passes through the locking hole 141 and is connected to the rotating plate 140. The diameter of the mating end 153 is smaller than the diameter of the connecting end 152, so that one end of the rotating plate 140 facing the rotating rod can abut against the end surface of the connecting end 152, and the rotating plate 140 can be limited by the mating end 153. Preferably, the locking bar 150 is a rivet.

In addition, a connection hole 142 is formed at one side of the locking hole 141 of the rotation plate 140, a positioning end 131 is formed at one end of the locking point 130, and the positioning end 131 can be inserted into the connection hole 142 and is threadedly coupled to a sidewall of the connection hole 142, so that the locking point 130 and the rotation plate 140 are stably connected.

In one embodiment, the micro-ventilation structure further includes a locking member, and one side of the locking piece 200 is provided with a positioning hole 215 extending in the third direction, and the locking member can be inserted into the positioning hole 215 and coupled to the frame profile 400. The locking member is provided such that the locking piece 200 is tightly coupled with the frame profile 400.

Referring to fig. 1a, 1b, 2 and 7, fig. 7 is a partial schematic view of a door and window ventilation system according to an embodiment of the present invention. In one embodiment, the number of guide slots 210 is two, and the two guide slots 210 are arranged in a mirror image in the second direction. This arrangement enables the locking pieces 200 to be mounted on both sides of the frame profile 400, thereby improving the adaptability of the micro-ventilation structure. For convenience of description, the guide groove 210 is divided into a first guide groove 213 and a second guide groove 214, and when the locking piece 200 is placed on the left side of the frame profile 400, the first guide groove 213 is located above and the locking point 130 is engaged with the first guide groove 213. When the locking piece 200 is placed on the right side of the frame profile 400, the second guiding groove 214 is located above the frame profile 400, and the locking point 130 is engaged with the second guiding groove 214. Further, the positioning hole 215 is provided between the first guide groove 213 and the second guide groove 214, so that the connection of the lock block 200 with the frame profile 400 can be more stable. Furthermore, an accommodating groove 216 is disposed between the first guide groove 213 and the second guide groove 214, and the positioning hole 215 is disposed on a sidewall of the accommodating groove 216, so that one end of the positioning element can be accommodated in the accommodating groove 216, and the positioning element is prevented from being protruded from the locking block 200 to scratch a person. Preferably, the retaining member is a screw.

Referring to fig. 7, an embodiment of the present invention provides a door and window ventilation system, which includes the above-mentioned micro ventilation structure, further includes a sash profile 300 and a frame profile 400, and the micro ventilation structure is used for limiting the opening angle of the sash profile 300 relative to the frame profile 400. Specifically, the fan-shaped section 300 is provided with a positioning groove 310, and the transmission rod 110 is installed in the positioning groove 310, so that it can be stably connected with the fan-shaped section 300. The frame section 400 is provided with ribs 420, mounting grooves 410 are formed between the ribs 420, and the locking block 200 is mounted in the mounting grooves 410, so that it can be stably connected with the frame section 400. The blocking arm 217 is convexly arranged on the locking block 200 along the second direction, and the blocking arm 217 covers the convex rib 420, so that the locking block 200 is stably connected with the frame profile 400, the transmission rod 110 and the convex rib 420 can be prevented from being scratched in the opening process of the fan profile 300, and the service life of the transmission rod 110 is prolonged.

Door and window ventilation system in this application through the structure that ventilates a little, realizes that fan-shaped material 300 is normally opened the condition relatively under frame section bar 400, can also realize ventilating a little to door and window ventilation system's performance has been improved.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A micro ventilation structure, comprising:

the locking block (200) is arranged on the frame profile (400), and a guide groove (210) is formed in the locking block (200);

the corner device (100) comprises a transmission rod (110) and a locking point (130) connected to the transmission rod (110), wherein the transmission rod (110) is connected to a fan-shaped section (300) in a sliding mode; the locking point (130) can be inserted into the guide groove (210) and can move in the guide groove (210) to limit the opening angle of the sash profile (300) relative to the frame profile (400).

2. The micro ventilation structure according to claim 1, wherein the guide groove (210) comprises a reduced section (212) and a circular arc section (211) connected to a rear portion of the reduced section (212) in a sliding-in direction of the locking point (130), and a central position of the circular arc section (211) has an offset with respect to a central position of the reduced section (212).

3. The micro-ventilation structure of claim 2, wherein the reduction section (212) has a first inclined surface (218) and a second inclined surface (219) which are oppositely arranged and connected to both sides of the circular arc section (211), and the second inclined surface (219) is smoothly transited to the circular arc section (211); the second inclined surface (219) has a slope greater than a slope of the first inclined surface (218).

4. The micro-venting structure of claim 2, further comprising a swivel plate (140) and a locking lever (150); one end of the locking rod (150) passes through the transmission rod (110) to be connected to the rotating plate (140), and the locking point (130) is connected to the rotating plate (140); the rotating plate (140) can rotate around the axis of the locking rod (150) relative to the transmission rod (110), and the locking point (130) and the rotating plate (140) rotate synchronously.

5. A micro-venting structure according to claim 4, further comprising a resilient member (160); the elastic piece (160) is sleeved on the locking rod (150), one end of the elastic piece (160) abuts against one end of the locking rod (150), the other end of the elastic piece (160) abuts against one side, departing from the rotating plate (140), of the transmission rod (110), and the elastic piece (160) is used for applying acting force, moving towards one side, departing from the rotating plate (140), to the locking rod (150).

6. The micro-ventilation structure of claim 5, wherein the transmission rod (110) is provided with a groove (112) adapted to the rotation plate (140), and the rotation plate (140) is accommodated in the groove (112);

when the rotating plate (140) rotates relative to the transmission rod (110), the locking point (130) can drive the rotating plate (140) to be positioned outside the groove (112).

7. A micro-ventilation structure according to claim 1, characterized in that it further comprises an actuator (500) mounted on the sector bar (300);

the driver (500) comprises a gear (520) and a rack (530) in meshing transmission with the gear (520); the gear (520) is connected to the handle (510) through a rotating shaft, and the rack (530) is connected to the transmission rod (110);

under the action of rotation of the handle (510), the gear (520) drives the transmission rod (110) to slide relative to the fan-shaped section (300) through the rack (530).

8. The micro-ventilation structure of claim 7, wherein the driver (500) further comprises a connection plate mounted on the fan-shaped section (300), the connection plate (540) being connected at one end to the rack (530) and at the other end to the transmission rod (110).

9. The micro-venting structure of any of claims 1 to 8, wherein the number of the guide grooves (210) is two, and the two guide grooves (210) are arranged in a mirror image in the second direction.

10. Door and window ventilation system, characterized in that it comprises a micro-ventilation structure according to any of claims 1 to 9, further comprising a sash profile (300) and a frame profile (400), said micro-ventilation structure being used to limit the opening angle of said sash profile (300) with respect to said frame profile (400).

Images