Fresh air ventilation structure and door and window thereof

Abstract

The fresh air ventilation structure comprises a shell, an opening of the shell faces the interior of a room, a first connecting piece and a second connecting piece are installed at the opening position of the shell and fixed to the inner walls of the two sides of the shell, a wind blocking assembly is rotationally arranged on the first connecting piece, and the wind blocking assembly is rotationally arranged on the second connecting piece. The air blocking assembly is rotationally connected with the first connecting piece, the locking piece is used for locking the second connecting piece and the air blocking assembly, the first connecting piece is fixedly connected with a mullion of a door and window, and the second connecting piece is fixedly connected with a frame on one side of the door and window. According to the fresh air ventilation structure, the first connecting piece and the second connecting piece are arranged, so that the fresh air ventilation structure can be fixedly installed on a door and a window, circulation of indoor air is guaranteed, meanwhile, due to the fact that the wind shield capable of being opened and closed is arranged, dust on the wind shield is conveniently cleaned, and the interior of the fresh air ventilation structure is conveniently maintained.

Description

Technical Field

[0001] The utility model belongs to the technical field of doors and windows, and particularly relates to a fresh air ventilation structure and a door and window thereof. Background Art

[0002] The fresh air ventilator is designed and developed based on the principle that a "fresh air flow field" will be formed in the closed room by supplying air on one side and induced air on the other side. It relies on mechanical air supply and induced air to force the formation of a fresh air flow field in the system. It is a new type of environmentally friendly appliance that keeps the indoor air clean and fresh at all times. This independent indoor air replacement and purification circulation system can input natural fresh air while removing indoor polluted air. The fresh air input into the room is first filtered, sterilized, heated, oxygenated and other processes.

[0003] When installing, the fresh air ventilator usually needs to be embedded in the wall. This installation method requires drilling holes in the wall. The wall drilling method is not only complicated to operate, but also easily destroys the thermal insulation performance of the wall. In addition, the traditional fresh air ventilator is usually installed at a high place, and it is difficult to clean the dust on its windshield and difficult to repair its interior. In order to solve the above problems, a fresh air ventilation structure and its doors and windows are now provided.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In order to solve the above problems, the purpose of the utility model is to provide a fresh air ventilation structure and its doors and windows. By setting a first connecting member and a second connecting member, the fresh air ventilation structure can be fixedly installed on the doors and windows to ensure the circulation of indoor air. At the same time, by setting an openable and closable wind shield, it is not only convenient to clean the dust on the wind shield, but also convenient to repair the interior of the fresh air ventilation structure.

[0006] To achieve the above-mentioned purpose, the utility model proposes a fresh air ventilation structure, which includes a shell, the opening of which faces the room, and a first connecting member and a second connecting member are installed at the opening position of the shell. The first connecting member and the second connecting member are fixed to the inner walls on both sides of the shell, and a wind shield assembly is rotatably provided on the first connecting member, which is rotatably connected to the wind shield assembly and the first connecting member.

[0007] The fresh air ventilation structure also includes a locking piece, which is used to lock the second connecting piece and the wind shield assembly.

[0008] The first connecting member is fixedly connected to the middle stile of the door and window, and the second connecting member is fixedly connected to a side frame of the door and window.

[0009] Furthermore, the first connecting member includes a first threading wire, and the second connecting member includes a second threading wire.

[0010] The windshield assembly comprises a windshield plate, a third threading line and a fourth threading line. The third threading line and the fourth threading line are both clamped with the windshield plate, and the first threading line is rotationally connected with the third threading line.

[0011] Furthermore, the locking member includes a first magnetic strip and a second magnetic strip, the first magnetic strip is clamped on the fourth threading line, and the second magnetic strip is clamped on the second threading line. When the wind shield covers the opening of the shell, the first magnetic strip is magnetically connected to the second magnetic strip.

[0012] Furthermore, the wind shield includes a plate body, on which air outlet holes distributed in an array are opened, and a guide strip distributed in an array is fixed to a side of the plate body close to the room.

[0013] Furthermore, L-shaped connecting strips are fixed to both ends of the plate body, and a first limiting strip is fixedly connected to the L-shaped connecting strip.

[0014] The third threading includes a fourth connecting plate, a fifth connecting plate is vertically fixed on the fourth connecting plate, and a first connecting notch is provided on one side of the fifth connecting plate.

[0015] The fourth threading includes an eighth connecting plate, a ninth connecting plate is vertically fixed on the eighth connecting plate, a third connecting slot is provided on one side of the ninth connecting plate, one of the first limiting strips is stuck in the first connecting slot, and the other first limiting strip is stuck in the third connecting slot.

[0016] Furthermore, the eighth connecting plate is also provided with a fourth connecting slot, and the second threading includes a sixth connecting plate fixed on the inner wall of the shell, and a seventh connecting plate is fixed vertically on the side of the sixth connecting plate located outside and close to the second vertical frame, and a second connecting slot is fixed on the side of the seventh connecting plate away from the shell.

[0017] The first magnetic stripe and the second magnetic stripe are both I-shaped, the first magnetic stripe is clamped on the second connection slot, and the second magnetic stripe is clamped on the fourth connection slot.

[0018] Furthermore, the first threading includes a first connecting plate fixed to the inner wall of the shell, a second connecting plate is fixed to a side of the first connecting plate close to the vertical bar, a third connecting bar is connected to the second connecting plate, and a connecting groove is provided on the third connecting bar.

[0019] A rotation bar is fixed on one side of the fourth connecting plate, and the rotation bar is rotationally connected to the connecting groove.

[0020] Furthermore, a sealing plate is vertically fixed to a side of the seventh connecting plate away from the shell, and a second sealing strip is vertically fixed to a side of the eighth connecting plate.

[0021] A door and window comprises the above-mentioned fresh air ventilation structure and a window frame, in which a first plurality of layers of glass, a second plurality of layers of glass and an outward-opening window are installed.

[0022] Furthermore, the window frame includes two parallel distributed transverse frames, a first vertical frame, a second vertical frame, two vertical bars and a horizontal bar are vertically connected between the two transverse frames, the vertical bars and the horizontal bars are located between the first vertical frame and the second vertical frame, one end of the horizontal bar is connected to the first vertical frame, and the other end is connected to one of the vertical bars.

[0023] The second multi-layer glass is fixed between two vertical bars and two horizontal frames, the outward opening window is installed above the horizontal bars, the first multi-layer glass is installed below the horizontal bars, and the fresh air ventilation structure is installed between the second vertical bar, two horizontal frames and a vertical bar away from the outward opening window.

[0024] The fresh air ventilation structure and doors and windows proposed by the utility model can bring the following beneficial effects:

[0025] 1. The utility model provides a fresh air ventilation structure by providing a first connecting member and a second connecting member, so that the fresh air ventilation structure can be fixedly installed on doors and windows to ensure the circulation of indoor air. At the same time, by providing an openable and closable windshield, it is not only convenient to clean the dust on the windshield, but also convenient to repair the interior of the fresh air ventilation structure;

[0026] 2. The fresh air ventilation structure of the utility model can be embedded in doors and windows, which not only saves space but also is convenient for various scenes. At the same time, its installation method is simple and quick, and there is no need to drill holes in the wall. It not only ensures the beauty of the interior decoration, but also ensures the thermal insulation performance of the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0028] Figure 1 The utility model is a structural schematic diagram of a door and window.

[0029] Figure 2 for Figure 1 Schematic diagram of the structure along the DD line section.

[0030] Figure 3 The utility model is a partial structural schematic diagram of a door and window.

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the transverse frame of the utility model.

[0032] Figure 5 for Figure 1 Schematic diagram of the structure along the AA line section.

[0033] Figure 6 This is a schematic diagram of the door and window structure when the wind shield assembly of the utility model is in an open state.

[0034] Figure 7 It is a schematic cross-sectional structure diagram of the fresh air ventilation structure of the utility model.

[0035] Figure 8 It is a partial structural schematic diagram of the windshield of the utility model.

[0036] Fig. 9 for Figure 7 Enlarged structural diagram at A in the middle.

[0037] Fig.10 for Figure 7 Enlarged structural diagram at B in the middle.

[0038] In the figure: 1, window frame; 2, outward-opening window; 3, first multi-layer glass; 4, second multi-layer glass; 5, fresh air ventilation structure; 6, first sealing strip; 7, pressure strip; 8, filling cotton; 9, corner fixing piece; 11, horizontal frame; 12, first vertical frame; 13, vertical stile; 14, horizontal stile; 15, second vertical frame; 111, first connecting profile; 112, second connecting profile; 113, first sealing strip; 114, first pressing line; 121, third connecting profile; 122, fourth connecting profile; 123, second sealing strip; 124, second pressing line; 131, fifth connecting profile; 132, sixth connecting profile; 133, third pressing line; 135, fourth pressing line; 137, third sealing strip; 51, shell; 52, first threading; 53, third threading; 54, Wind shield; 55, fourth threading; 56, second threading; 57, second magnetic strip; 58, first magnetic strip; 521, first connecting plate; 522, second connecting plate; 523, third connecting strip; 524, fan-shaped groove; 525, rotating groove; 526, slot; 531, fourth connecting plate; 532, arc-shaped connecting strip; 533, fourth connecting strip; 534, rotating shaft; 535, first connecting notch; 541, plate body; 542, air outlet; 543, guide strip; 544, L-shaped connecting strip; 545, first limiting strip; 551, eighth connecting plate; 552, fourth connecting notch; 553, ninth connecting plate; 554, third connecting notch; 555, second sealing strip; 561, sixth connecting plate; 562, second connecting notch; 563, sealing plate. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0040] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0044] The embodiment of the utility model provides a door and window, including a window frame 1, such as Figure 1 , Figure 2 and Figure 3 As shown, a first multi-layer glass 3, a second multi-layer glass 4, an outward-opening window 2 and a fresh air ventilation structure 5 are installed in the window frame 1.

[0045] The window frame 1 includes two parallelly distributed transverse frames 11, a first vertical frame 12, a second vertical frame 15, two mullions 13 and a horizontal frame 14 are vertically connected between the two transverse frames 11, the mullions 13 and the horizontal frame 14 are located between the first mullion 12 and the second mullion 15, one end of the horizontal frame 14 is connected to the first mullion 12, and the other end is connected to one of the mullions 13, the second multi-layer glass 4 is fixed between the two mullions 13 and the two transverse frames 11, the outward-opening window 2 is installed above the horizontal frame 14, the first multi-layer glass 3 is installed below the horizontal frame 14, and the fresh air ventilation structure 5 is installed between the second mullion 15, the two transverse frames 11 and a mullion 13 away from the outward-opening window 2.

[0046] The transverse frame 11 includes a first connecting profile 111 and a second connecting profile 112. Figure 4 As shown, a first sealing strip 113 is filled between the first connecting profile 111 and the second connecting profile 112 , and a first pressing line 114 is clamped on the second connecting profile 112 .

[0047] The first vertical frame 12 includes a third connecting profile 121 and a fourth connecting profile 122. Figure 5 , Figure 6 As shown, a second sealing strip 123 is filled between the fourth connection profile 122 and the third connection profile 121 , and a second pressing line 124 is clamped on the fourth connection profile 122 .

[0048] The vertical bar 13 includes a fifth connecting profile 131 and a sixth connecting profile 132. The sixth connecting profile 132 is located on the indoor side. A third sealing strip 137 is filled between the fifth connecting profile 131 and the sixth connecting profile 132. The third pressure line 133 and the fourth pressure line 135 are respectively clamped on both sides of the sixth connecting profile 132.

[0049] The structure of the second vertical frame 15 is the same as that of the horizontal frame 11 .

[0050] Filling cotton 8 is provided between the fifth connecting profile 131 , the fourth pressing line 135 and the fresh air ventilation structure 5 , and between the second connecting profile 112 , the first pressing line 114 and the fresh air ventilation structure 5 .

[0051] Corner fixing members 9 are installed in the first connecting profile 111 , the second connecting profile 112 , the third connecting profile 121 , the fourth connecting profile 122 , the fifth connecting profile 131 and the sixth connecting profile 132 .

[0052] The second pressure line 124 and the third pressure line 133 are both clamped with a pressure strip 7 for sealing the inner side of the glass, and the third connecting profile 121 and the fifth connecting profile 131 are both clamped with a first sealing strip 6 for sealing the outer side of the glass.

[0053] The fresh air ventilation structure 5 includes a long shell 51, the opening of the shell 51 faces the room, and the first connecting member and the second connecting member are installed at the opening position of the shell 51. The first connecting member and the second connecting member are fixed to the inner walls on both sides of the shell 51. A wind shield assembly is rotatably provided on the first connecting member, and the wind shield assembly is rotatably connected to the first connecting member. The fresh air ventilation structure 5 also includes a locking member, which is used to lock the second connecting member and the wind shield assembly.

[0054] The first connecting member is fixedly connected to the middle stile of the door and window, and the second connecting member is fixedly connected to a side frame of the door and window.

[0055] The first connecting member includes a first threading wire 52, the second connecting member includes a second threading wire 56, the windshield assembly includes a windshield plate 54, a third threading wire 53 and a fourth threading wire 55, the third threading wire 53 and the fourth threading wire 55 are both engaged with the windshield plate 54, and the first threading wire 52 and the third threading wire 53 are rotationally connected.

[0056] The locking element includes a first magnetic strip 58 and a second magnetic strip 57 . The first magnetic strip 58 is clamped on the fourth threading wire 55 , and the second magnetic strip 57 is clamped on the second threading wire 56 .

[0057] The first threading wire 52 is fixed on the fourth pressing wire 135 and fixed to the fourth pressing wire 135 by screws. The second threading wire 56 is fixed on the first pressing wire 114 on the second vertical frame 15 and fixed to the corresponding first pressing wire 114 by screws.

[0058] The windshield 54 includes an arc-shaped plate body 541, such as Figure 7 , Figure 8 As shown, the plate body 541 is provided with air outlet holes 542 distributed in an array, an array-distributed guide strip 543 is fixed to the side of the plate body 541 close to the room, L-shaped connecting strips 544 are fixed to both ends of the plate body 541, and a first limiting strip 545 is fixedly connected to the L-shaped connecting strip 544.

[0059] The first threading 52 includes a first connecting plate 521 fixed to the inner wall of the housing 51. Fig. 9 As shown, a second connecting plate 522 is fixed to one side of the first connecting plate 521 close to the vertical bar 13 . The second connecting plate 522 is located outside the housing 51 . A third connecting bar 523 is connected to the second connecting plate 522 . A connecting groove is provided on the third connecting bar 523 .

[0060] The third threading 53 includes a fourth connecting plate 531 . A rotating bar is fixed to one side of the fourth connecting plate 531 . The rotating bar is rotatably connected to the connecting groove.

[0061] The connection groove includes a fan-shaped groove 524 arranged inside the third connection bar 523 , a rotation groove 525 is provided at the axis position of the fan-shaped groove 524 , and a groove 526 communicating with the outside is provided below one side of the fan-shaped groove 524 .

[0062] The rotating bar includes an arc-shaped connecting bar 532 fixed on the fourth connecting plate 531, and a fourth connecting bar 533 is vertically fixed to the end of the arc-shaped connecting bar 532 away from the fourth connecting plate 531, and a rotating shaft 534 is fixed to the fourth connecting bar 533. The rotating shaft 534 is located in the rotating groove 525 and rotates. The arc-shaped connecting bar 532 rotates along the inner wall of the fan-shaped groove 524, and a fifth connecting plate (not marked in the figure) is vertically fixed to the fourth connecting plate 531, and a C-shaped first connecting groove 535 is fixed to the side of the fifth connecting plate away from the arc-shaped connecting bar 532.

[0063] The second threading 56 includes a sixth connecting plate 561 fixed to the inner wall of the housing 51, such as Fig.10 As shown, a seventh connecting plate (not shown) is vertically fixed to the side of the sixth connecting plate 561 located outside and close to the second vertical frame 15, a C-shaped second connecting groove 562 is fixed to the side of the seventh connecting plate away from the shell 51, and a sealing plate 563 is vertically fixed to the side of the seventh connecting plate away from the shell 51.

[0064] The fourth threading 55 includes an eighth connecting plate 551, a second sealing strip 555 is vertically fixed to one side of the eighth connecting plate 551, a ninth connecting plate 553 is also vertically fixed to the eighth connecting plate 551, a C-shaped third connecting slot 554 is fixed to one side of the ninth connecting plate 553, one of the first limiting strips 545 is stuck in the first connecting slot 535, and the other first limiting strip 545 is stuck in the third connecting slot 554.

[0065] A C-shaped fourth connecting slot 552 is also fixed on the eighth connecting plate 551. The first magnetic strip 58 and the second magnetic strip 57 are both I-shaped. The first magnetic strip 58 is clamped on the second connecting slot 562, and the second magnetic strip 57 is clamped on the fourth connecting slot 552. When the wind shield 54 blocks the opening of the shell 51, the first magnetic strip 58 is magnetically connected to the second magnetic strip 57, and the second sealing strip 555 corresponds to the sealing plate 563.

[0066] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0067] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A fresh air ventilation structure, comprising a shell (51), the opening of the shell (51) facing indoors, a first connecting member and a second connecting member installed at the opening of the shell (51), characterized in that: The first connecting member and the second connecting member are fixed to the inner walls of both sides of the housing (51); a windshield component is rotatably provided on the first connecting member, and the windshield component is rotatably connected to the first connecting member; The fresh air ventilation structure further includes a locking member, which is used to lock the second connecting member and the wind shielding assembly; The first connecting member is fixedly connected to the middle stile of the door and window, and the second connecting member is fixedly connected to a side frame of the door and window.

2. A fresh air ventilation structure according to claim 1, characterized in that: The first connecting member includes a first threading wire (52), and the second connecting member includes a second threading wire (56); The windshield assembly comprises a windshield plate (54), a third threading line (53) and a fourth threading line (55); the third threading line (53) and the fourth threading line (55) are both clamped with the windshield plate (54); and the first threading line (52) and the third threading line (53) are rotationally connected.

3. A fresh air ventilation structure according to claim 2, characterized in that: The locking member comprises a first magnetic strip (58) and a second magnetic strip (57); the first magnetic strip (58) is clamped on the fourth threading wire (55), and the second magnetic strip (57) is clamped on the second threading wire (56); when the wind shield (54) blocks the opening of the housing (51), the first magnetic strip (58) is magnetically connected to the second magnetic strip (57).

4. A fresh air ventilation structure according to claim 3, characterized in that: The wind shield (54) comprises a plate body (541), on which air outlet holes (542) distributed in an array are provided, and a guide strip (543) distributed in an array is fixed to a side of the plate body (541) close to the interior of the room.

5. A fresh air ventilation structure according to claim 4, characterized in that: L-shaped connecting strips (544) are fixed to both ends of the plate body (541), and a first limiting strip (545) is fixedly connected to the L-shaped connecting strip (544); The third threading device (53) comprises a fourth connecting plate (531), a fifth connecting plate is vertically fixed on the fourth connecting plate (531), and a first connecting notch (535) is provided on one side of the fifth connecting plate; The fourth threading device (55) comprises an eighth connecting plate (551), a ninth connecting plate (553) being vertically fixed on the eighth connecting plate (551), a third connecting slot (554) being provided on one side of the ninth connecting plate (553), one of the first limiting strips (545) being clamped in the first connecting slot (535), and the other first limiting strip (545) being clamped in the third connecting slot (554).

6. A fresh air ventilation structure according to claim 5, characterized in that: The eighth connecting plate (551) is further provided with a fourth connecting notch (552); the second threading (56) comprises a sixth connecting plate (561) fixed to the inner wall of the housing (51); a seventh connecting plate is vertically fixed to the side of the sixth connecting plate (561) located outside and close to the second vertical frame (15); and a second connecting notch (562) is fixed to the side of the seventh connecting plate away from the housing (51); The first magnetic strip (58) and the second magnetic strip (57) are both I-shaped; the first magnetic strip (58) is snap-connected to the second connection slot (562), and the second magnetic strip (57) is snap-connected to the fourth connection slot (552).

7. A fresh air ventilation structure according to claim 6, characterized in that: The first threading device (52) comprises a first connecting plate (521) fixed to the inner wall of the housing (51), a second connecting plate (522) being fixed to a side of the first connecting plate (521) close to the vertical bar (13), a third connecting strip (523) being connected to the second connecting plate (522), and a connecting groove being provided on the third connecting strip (523); A rotation bar is fixed on one side of the fourth connecting plate (531), and the rotation bar is rotationally connected to the connecting groove.

8. A fresh air ventilation structure according to claim 7, characterized in that: A sealing plate (563) is vertically fixed to a side of the seventh connecting plate away from the housing (51), and a second sealing strip (555) is vertically fixed to a side of the eighth connecting plate (551).

9. A door and window, comprising the fresh air ventilation structure according to claim 8, characterized in that: It also comprises a window frame (1), in which a first plurality of layers of glass (3), a second plurality of layers of glass (4) and an outward-opening window (2) are installed.

10. A door and window according to claim 9, characterized in that: The window frame (1) comprises two parallel horizontal frames (11), a first vertical frame (12), a second vertical frame (15), two vertical mullions (13) and a horizontal mullion (14) are vertically connected between the two horizontal frames (11), the vertical mullions (13) and the horizontal mullion (14) are located between the first vertical frame (12) and the second vertical frame (15), one end of the horizontal mullion (14) is connected to the first vertical frame (12), and the other end is connected to one of the vertical mullions (13); The second multi-layer glass (4) is fixed between two vertical bars (13) and two horizontal frames (11), the outward-opening window (2) is installed above the horizontal bar (14), the first multi-layer glass (3) is installed below the horizontal bar (14), and the fresh air ventilation structure (5) is installed between the second vertical bar (15), the two horizontal frames (11) and a vertical bar (13) away from the outward-opening window (2).

Images