TWI664382B - System components and ventilation fans for ventilation - Google Patents

Abstract

The ventilation terminal (1) provided in the duct includes a cylindrical connecting cylinder portion (2) and a flange portion (3) protruding from one end portion of the connecting cylinder portion (2) in the direction of diameter expansion. And a grid plate member (5), which includes a ventilation portion (5a) including a ventilation structure, and a frame portion (5b) standing upright from a periphery of the ventilation portion (5a), and can be snap-fitted to be inserted The flange portion (3) inside the frame portion (5b); the grid plate member (5) has at least one pair of protrusions that differ in the protruding direction by 180 degrees and protrude toward the inside of the frame portion (5b); the flange portion (3) The system includes: a pair of arched hooking structures (9), which are 180 degrees apart in the protruding direction and protrude in the direction of the diameter expansion of the connecting cylinder (2); and a curved slit (10), The center side of the connecting tube portion (2) is adjacent to the hooking structure (9) and has the same curvature as the hooking structure (9); the distance between the front ends of the pair of hooking structures (9) is the distance between the grid plate members (5). The frame portions (5b) are at a distance greater than each other.

Description

   System components and ventilation fans for ventilation   

The invention relates to a ventilation system component having an air volume adjustment function and a ventilation fan including the ventilation system component.

The ventilating system components included in the ventilating fan installed in the ventilation path required for air supply or exhaust, as disclosed in Patent Document 1, have good workability and design, have a small number of components, and can be thin Including those who have air volume adjustment function.

[Leading Patent Literature]

[Patent Literature]

[Patent Document 1] Japanese Unexamined Patent Publication No. 8-152186

However, the invention disclosed in Patent Document 1 is a convex shape provided inside the grid plate member, or a hook corresponding to the convex shape provided inside the grid plate member on the outside of the flange. The structure implements the detachment of the lattice plate member. Therefore, the invention disclosed in Patent Document 1 is a case where the size inside the lattice is large or a case where the hooking structure provided on the flange is small in size, which leads to the drop of the lattice plate member and the size inside the lattice is small. In some cases, or if the size of the hook structure provided on the flange is large, the grid plate member cannot be removed from the flange. Therefore, the invention disclosed in Patent Document 1 cannot always perform the latching operation of the lattice plate member with a stable load.

The present invention has been developed in view of the above, and an object thereof is to obtain a system component for ventilation, which is capable of always performing a latching operation of a lattice plate component with a stable load.

In order to solve the above-mentioned problems and achieve the object, the present invention is a system component for ventilation provided in a ventilation path, which includes: a cylindrical connecting cylinder portion; and a flange portion extending from one end portion of the connecting cylinder portion to an expansion. And a grid plate member having a ventilation portion including a ventilation structure and a frame portion standing up from a periphery of the ventilation portion, and a flange portion inserted into the frame portion so as to be snapped off. The grid plate member has a pair of protrusions that differ in at least one pair from each other in the protruding direction by 180 degrees and protrude inward of the frame portion. The flange portion includes: a pair of arch-shaped hooking structures that are 180 degrees apart in protruding direction and protrude in the direction of diameter expansion of the connecting tube portion; and a curved slit that is hooked on the center side of the connecting tube portion and hook The structure is adjacent and has the same curvature as the hook structure. The distance between the front ends of the pair of hook structures is equal to or greater than the distance between the frame portions of the lattice plate member.

According to the present invention, there is an effect that a system component for ventilation can be obtained, and the system component for ventilation can always perform a snap-off operation of the lattice plate component with a stable load.

1‧‧‧Ventilation terminal

2‧‧‧ connecting tube

3‧‧‧ flange

4‧‧‧ flange member

5‧‧‧ Lattice plate member

5a‧‧‧Ventilation Department

5b‧‧‧frame

6‧‧‧ Foam material

7‧‧‧ catheter

8‧‧‧ Hooked Finger

9‧‧‧ hook structure

10‧‧‧ slit

11‧‧‧ Blade

12a, 12b‧‧‧‧protrusion

13‧‧‧ open end

30‧‧‧fan

40‧‧‧Ventilation fan

FIG. 1 is a cross-sectional view showing a mounted state of a ventilation terminal according to an embodiment of the present invention.

Fig. 2 is a developed perspective view of a ventilation terminal of the embodiment.

Fig. 3 is a front view of the ventilation terminal of the embodiment.

Fig. 4 is a front view of a grid plate member attached to the ventilation terminal of the embodiment.

Fig. 5 is a rear view of the grid plate member of the ventilation terminal of the embodiment.

Fig. 6 is a cross-sectional view of a grid plate member of a ventilation terminal according to the embodiment.

Fig. 7 is a detailed cross-sectional view showing an arched hooking structure of a flange portion of a ventilation terminal of the embodiment and a hooking of a protrusion provided inside a lattice plate member.

Fig. 8 is a diagram showing the structure of a ventilation fan according to the embodiment.

Hereinafter, a ventilation system component and a ventilation fan according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited by the embodiments.

Implementation form

FIG. 1 is a cross-sectional view showing a mounted state of a ventilation terminal according to the embodiment. Fig. 2 is a developed perspective view of a ventilation terminal of the embodiment. The ventilation terminal 1 which is a component of the ventilation system according to the embodiment is attached to an indoor terminal portion of the duct 7 constituting a ventilation path required for air supply or exhaust. The indoor installation position is ceiling, wall or floor. The ventilation terminal 1 includes a resin flange member 4 and a resin grid plate member 5 covering the front face of the flange member 4. The grid plate member 5 includes a flat-shaped ventilation portion 5a including a ventilation structure, and a frame portion 5b standing upright from a periphery of the ventilation portion 5a. The grid plate member 5 has a pair of protrusions 12a, 12b which differ in at least one pair from each other in the protruding direction by 180 degrees and protrudes inward of the frame portion 5b. The grid plate member 5 is a flange member 4 that is detachably attached to the inside of the frame portion 5b. The flange member 4 is an opening connecting cylindrical portion 2 at both ends which is fitted and connected to the indoor open end of the ventilation passage, and an end from the front side of the connecting cylindrical portion 2 extends away from the central axis of the connecting cylindrical portion 2 The flange portion 3 is formed integrally. At the center of the front surface of the flange member 4, an open end 13 communicating with the connecting cylindrical portion 2 is opened.

The flange member 4 is temporarily fixed to the catheter 7 by inserting the connecting cylindrical portion 2 into the catheter 7, and the reaction force against compression of the foamed material 6 installed on the outer periphery is temporarily fixed to the catheter 7, and the connecting cylinder 2 and the conduit 7 Structure of the gap.

Fig. 3 is a front view of the ventilation terminal of the embodiment. In FIG. 3, illustration of the grid plate member 5 is omitted. The flange portion 3 includes: a pair of arch-shaped hooking structures 9 which are different from each other in the protruding direction by 180 degrees and protrude in the direction of the diameter expansion of the connecting tube portion 2; and a curved slit 10 which is connected at the center of the connecting tube portion 2 The side is adjacent to the hooking structure 9 and has the same curvature as the hooking structure 9. Specifically, the flange portion 3 is formed into a square planar shape, and on the side surfaces forming the four sides, one hook structure 9 is formed on each of the corner portions and eight on the entire side surface. On opposite sides, the interval between the hooking structures 9 along the sides becomes equal. An arched slit 10 is formed in each hooking structure 9 so as to be elastically deformable toward the center of the flange portion 3.

Fig. 4 is a front view of a grid plate member attached to the ventilation terminal of the embodiment. Fig. 5 is a rear view of the grid plate member of the ventilation terminal of the embodiment. Fig. 6 is a cross-sectional view of a lattice plate member of a vent terminal of the embodiment, and shows a cross section taken along the line VI-VI in Fig. 5. Fig. 7 is a detailed cross-sectional view showing an arched hooking structure of a flange portion of a ventilation terminal of the embodiment and a hooking of a protrusion provided inside a lattice plate member. As shown in FIG. 4, the grid plate member 5 has a flat shape in a square shape. A ventilation structure including a plurality of inclined blades 11 is formed in front of the lattice plate member 5. As shown in FIG. 5 and FIG. 6, two pairs of the two sides of one of the two opposite sides of the lattice plate member 5 are formed to form two pairs of arches formed on the flange member 4 so as to be detachable. A pair of convex protrusions 12a, 12b of the hook structure 9 are formed. By using a pair of protrusions 12a and 12b, the lattice plate member 5 can be attached to the flange member 4 in any of four postures in which the direction is sequentially changed by 90 degrees around the central axis of the connecting cylindrical portion 2. Therefore, the direction of the blades 11 can be changed by the posture of the grid plate member 5, and the blowing direction and the suction direction of the wind can be changed according to the direction of the blades 11 of the fixed structure. In addition, in FIG. 6, an arrow indicates the blowing direction of the wind. The above function is to make the shape of the flange portion 3 and the grid plate member 5 circular, or to shape the outer shape of the flange portion 3 and the grid plate member 5 to have inner angles having multiples of four. A regular polygon shape can be realized by providing the hooking structure 9 on each side of the flange portion 3.

As shown above, the grid plate member 5 hooks the four protrusions 12a, 12b of the grid plate member 5 to the eight arch-shaped hooking structures 9 of the flange portion 3, and the hooking structures 9 are positioned higher than the projections 12a, 12b is closer to the ventilation part 5a side, whereby the distance between the front ends of the arch-shaped hooking structures 9 which are attached to the flange member 4 and are disposed at 180 degrees apart from each other at the flange portion 3 becomes larger than The distance between the frame portions 5b. In the case where the distance between the front ends of the arched hooking structures 9 provided at the positions 180 degrees apart from each other in the flange portion 3 is the distance between the frame portions 5b, if there is no slit 10, the The force of the grid plate member 5 is pushed outward, and it is difficult to remove the grid plate member 5 from the flange portion 3. However, the ventilation terminal 1 of the embodiment is configured to elastically deform the hooking structure 9 toward the slit 10 side by using a curved slit 10 having the same curvature as the hooking structure 9 provided in the flange portion 3. Since the hooking dimensions of the hooking structure 9 and the protrusions 12a and 12b provided in the frame portion 5b are fixed values, the grid plate member 5 can always be engaged and disengaged with a stable load.

Further, the hook finger portions 8 protruding outward are integrally formed in the frame portion 5 b of the grid plate member 5, and by pulling the hook finger portions 8 forward, the grid plate member 5 can be easily removed from the flange member 4. Therefore, it is possible to easily perform the detachment operation without any danger such as falling of the grid plate member 5 and without effort.

Fig. 8 is a diagram showing the structure of a ventilation fan according to the embodiment. The fan 30 is provided inside the connection tube portion 2 to constitute the ventilation fan 40. That is, the ventilation fan of the embodiment includes the ventilation terminal 1 and the fan 30 as system components for ventilation. The ventilating fan 40 according to the embodiment can always perform the latching operation of the grid plate member 5 with a stable load similarly to the ventilation terminal 1 of the embodiment.

The structure shown in the above embodiment is an example showing the content of the present invention, and may be combined with other well-known technologies, and a part of the structure may be omitted or changed without departing from the scope of the present invention.

Claims (5)

A system component for ventilation, which is a system component for ventilation provided in a ventilation path, and is characterized in that it includes a cylindrical connecting cylinder portion and a flange portion extending from one end portion of the connecting cylinder portion to a diameter expansion direction. A projection; and a lattice plate member having a ventilation portion including a ventilation structure, and a frame portion standing up from a periphery of the ventilation portion, and being capable of being snap-fitted to the flange portion inserted inside the frame portion ; The lattice plate member has at least one pair of protrusions that differ by 180 degrees in the protruding direction and protrudes inward of the frame portion; the flange portion includes: a pair of arched hooking structures that differ in the protrusion direction by 180 degrees And protrudes in the direction of the diameter expansion of the connecting tube portion; and a curved slit is adjacent to the hooking structure at the center side of the connecting tube portion and has the same curvature as the hooking structure; a pair of the hooking structure The distance between the front ends is greater than the distance between the frame portions of the grid plate member. For example, the system component for ventilation of item 1 of the patent application scope, wherein the flange portion is a regular polygon having an inner angle which is a multiple of 4; the hook structure is provided on each side of the flange portion. For example, the ventilating system component of the first patent application range, wherein the flange portion is circular and has a plurality of hooking structures. For example, the system component for ventilation of item 1 or 2 of the patent application scope, wherein the lattice plate component includes hook fingers protruding outward. A ventilating fan characterized by having system components for ventilating as in any one of claims 1 to 4 of the scope of patent application.