Hardware system for inward opening window

Abstract

The utility model relates to the technical field of inward opening windows, in particular to an inward opening window hardware system which comprises an upper hinge component, a lower hinge component, a window sash profile and a window frame profile. The window sash sectional material is opened and closed relative to the window frame sectional material through the upper hinge part and the lower hinge part; wherein the overall height of the upper hinge part is smaller than that of the lower hinge part, so that the amount of falling corners of a window sash is effectively reduced; the lower hinge part comprises a positioning piece, a guiding piece, a cushion block and an adjusting piece, the adjusting piece is rotated to move downwards, the positioning block and the first supporting arm can be driven to move upwards, then the window sash moves upwards, and the falling amount of the window sash is improved; the cushion block can guarantee the up-down adjusting function of the lower hinge part, and the service life and the strength of the product are improved; the upper hinge part and the lower hinge part both adopt eccentric rivets, the motion trail of the connecting rod can be adjusted, then the front-back and left-right gaps of the window sash are adjusted, the sealing gap after the window sash is closed is adjusted, and the sealing performance of the inward-opening window is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technology field of in -swing window, especially a hardware system of in -swing window. BACKGROUND

[0002] In -swing window has good ventilation and lighting, and simultaneously has the advantages such as safety and easy cleaning, so in -swing window is widely used in building.

[0003] The common problem of in -swing window on the market is that the sash sinks, which can cause the sash to collide with the window frame, so that the lock point and the lock seat cannot be closed, and then affect the completeness of the tightness of the sash, and the sash does not have the function of adjusting the gap in front, back, left and right. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a hardware system of in -swing window.

[0005] The utility model adopts the following technical scheme:

[0006] A hardware system of in -swing window, including sash section bar and window frame section bar, the hardware system of in -swing window further includes upper hinge part and lower hinge part, the upper hinge part is connected to the upper corner of sash section bar and window frame section bar, the lower hinge part is connected to the lower corner of sash section bar and window frame section bar, the lower hinge part includes the first supporting arm connected on sash section bar, the first fixed plate connected on window frame section bar and first connecting rod assembly, the first connecting rod assembly is connected with first supporting arm and first fixed plate respectively, height adjusting assembly is equipped on the first supporting arm, height adjusting assembly includes locating block, guide piece, cushion block and adjusting piece, the upper end of first supporting arm is fixedly connected with locating block, the side of locating block extends and is equipped with the connecting block fixedly connected with the side surface of window frame section bar, locating block is equipped with the connecting hole vertically arranged and both ends through, the connecting hole includes guide section and the thread section arranged on the upper end of guide section, guide piece is arranged in guide section, adjusting piece is screwly connected in thread section, cushion block is arranged between guide piece and adjusting piece, rotating adjusting piece, locating block and first supporting arm are synchronous along guide piece vertical lifting to adjust the height of sash section bar.

[0007] Preferably, the first connecting rod assembly comprises a first connecting rod, a second connecting rod and a third connecting rod; a sliding groove is formed in the first fixed plate, and a sliding module is arranged in the sliding groove; the sliding module is in sliding connection with the first fixed plate; the two ends of the first connecting rod are hingedly connected with the sliding module and a first supporting arm respectively; the middle part of the first connecting rod is hingedly connected with the middle part of the second connecting rod; the two ends of the second connecting rod are hingedly connected with the first fixed plate and the third connecting rod respectively; and the two ends of the third connecting rod are hingedly connected with the second connecting rod and the first supporting arm respectively.

[0008] Preferably, the first supporting arm is provided with a first perforation aligned with the connecting hole, and the end of the first connecting rod away from the first fixed plate is provided with a second perforation; the lower end of the guide member vertically penetrates through the first perforation and the second perforation; the outer wall of the guide member is provided with a limiting block extending outward along the radial direction, the bottom of the first supporting arm abuts against the top of the limiting block, and the top of the first connecting rod abuts against the bottom of the limiting block.

[0009] Preferably, the second connecting rod is hingedly connected with the first fixed plate through an eccentric rivet; and rotating the eccentric rivet drives the second connecting rod and the sash profile to move in the horizontal plane.

[0010] Preferably, the third connecting rod is hingedly connected with the first supporting arm through a stepped rivet; and the first supporting arm slides between the rivet cap and the top surface of the third connecting rod.

[0011] Preferably, the two sides of the first supporting arm are each provided with an integrally formed guide arm, and the guide arms cooperate with the sash profile to play a guiding role.

[0012] The end of the first supporting arm away from the positioning block is provided with a Z-shaped connecting arm, the end of the connecting arm away from the first supporting arm is provided with a clamping block, the upper end of the clamping block is provided with a clamping piece, and the clamping piece moves towards the clamping block to clamp the sash profile.

[0013] Preferably, the end of the first fixed plate towards the window frame profile is provided with a positioning plate perpendicular to the window frame profile, and the positioning plate cooperates with the window frame profile to realize the mutual positioning of the first fixed plate and the window frame profile.

[0014] Preferably, the end of the first fixed plate towards the window frame profile is provided with an L-shaped pressing block, and the pressing block partially overlaps with the second connecting rod in the vertical direction.

[0015] Preferably, the upper hinge component comprises a second supporting arm, a second fixed plate connected to the window frame profile, and a second connecting rod assembly; and the second connecting rod assembly connects the second supporting arm and the second fixed plate respectively.

[0016] Preferably, the upper end of the second supporting arm is provided with a connecting plate arranged perpendicularly thereto; the second supporting arm is connected with the bottom surface of the sash profile, and the connecting plate is connected with the side surface of the sash profile.

[0017] The utility model discloses a beneficial effect that:

[0018] The utility model relates to an inner opening window hardware system, including upper hinge part, lower hinge part, sash profile, window frame profile, through upper hinge part and lower hinge part realize sash profile relative window frame profile open and shut, wherein the overall height of upper hinge part is less than the overall height of lower hinge part, effectively reduce the amount of sash down angle, lower hinge part includes positioning piece, guide piece, cushion block and adjusting piece, rotate adjusting piece, make it move down, can drive positioning block and first supporting arm move up, and then make sash move up, improve sash down amount, set up cushion block can guarantee the up and down adjustment function of lower hinge part, improve product life and strength, upper hinge part and lower hinge part have adopted eccentric rivet, can adjust the movement track of connecting rod, and then adjust the front and back and left and right clearance of sash, adjust the sealing clearance after sash closing, guarantee the sealing property of inner opening window. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of the inner opening window hardware system of the utility model;

[0020] Figure 2 It is Figure 1 the structure schematic diagram of the inner opening window hardware system hidden sash profile after;

[0021] Figure 3 It is Figure 2 the structure schematic diagram of circle A in;

[0022] Figure 4 It is Figure 1 the structure schematic diagram of the inner opening window hardware system hidden window frame profile after;

[0023] Figure 5 It is Figure 4 the structure schematic diagram of circle B in;

[0024] Figure 6 It is the structure schematic diagram of lower hinge part in the utility model;

[0025] Figure 7 It is Figure 6 the plan view of lower hinge part in;

[0026] Figure 8 It is Figure 7 the section view along C-C;

[0027] Figure 9 is a structure explosion schematic view of the lower hinge component; Figure 6

[0028] Figure 10 is a structure schematic view of the upper hinge component in the utility model.

[0029] Reference numerals in the drawing:

[0030] 100 - window sash profile;

[0031] 200 - window frame profile;

[0032] 300 - lower hinge component; 31 - first supporting arm; 311 - guiding arm; 312 - connecting arm; 313 - clamping block; 314 - clamping piece; 315 - first through hole; 316 - sunken part; 32 - height adjusting assembly; 321 - positioning block; 3211 - connecting hole; 3212 - guiding section; 3213 - threaded section; 322 - guide; 3221 - limiting block; 323 - cushion block; 324 - adjusting piece; 33 - first fixed plate; 331 - pressing block; 3311 - connecting part; 3312 - pressing-down part; 332 - positioning plate; 3321 - clamping part; 333 - auxiliary plate; 334 - sliding groove; 335 - sliding module; 3351 - upper sliding block; 3352 - lower sliding block; 34 - first connecting rod assembly; 341 - first connecting rod; 3411 - second through hole; 342 - second connecting rod; 343 - third connecting rod; 344 - eccentric rivet; 345 - stepped rivet; 3451 - rivet cap;

[0033] 400 - upper hinge component; 41 - second supporting arm; 411 - connecting plate; 42 - second fixed plate; 43 - second connecting rod assembly. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0035] ​In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] like Figures 1 to 10 As shown, the inward-opening window hardware system of this utility model includes a window sash profile 100, a window frame profile 200, a lower hinge component 300, and an upper hinge component 400. The upper hinge component 400 is connected to the upper corner of the window sash profile 100 and the window frame profile 200, and the lower hinge component 300 is connected to the lower corner of the window sash profile 100 and the window frame profile 200. The upper hinge component 400 and the lower hinge component 300 are used to realize the opening and closing movement of the window sash profile 100 relative to the window frame profile 200, thereby realizing the opening and closing of the inward-opening window. The overall height of the upper hinge component 400 in the vertical direction is less than the overall height of the lower hinge component 300 in the vertical direction, which can effectively reduce the sag of the window sash.

[0038] The lower hinge component 300 comprises a first supporting arm 31 connected to the sash profile 100, a first fixed plate 33 connected to the frame profile 200, and a first connecting rod assembly 34 connecting the first supporting arm 31 and the first fixed plate 33. The first supporting arm 31 is provided with a height adjusting assembly 32 comprising a positioning block 321, a guide 322, a pad 323, and an adjusting member 324. The positioning block 321 is fixedly connected to the upper end of the first supporting arm 31 by riveting, and one side of the positioning block 321 is provided with a connecting block for fixedly connecting with the side surface of the frame profile 200. The positioning block 321 is provided with a connecting hole 3211 vertically arranged and penetrating through both ends, the connecting hole 3211 comprising a guide section 3212 and a threaded section 3213 arranged above the guide section 3212. The guide 322 is arranged in the guide section 3212, the adjusting member 324 is threadedly connected in the threaded section 3213, and the pad 323 is arranged between the guide 322 and the adjusting member 324. It should be noted that, in the embodiment, the guide 322 is a guide rivet, and the adjusting member 324 is an adjusting screw with a threaded outer wall.

[0039] As shown in Figure 8 , the adjusting member 324 is rotated, the adjusting member 324 is threadedly matched with the positioning block 321, and the positioning block 321 and the first supporting arm 31 can be synchronously vertically lifted along the guide 322. At the same time, since the positioning block 321 and the first supporting arm 31 are both connected with the sash profile 100, when the adjusting member 324 is rotated, the sash profile 100 will be adjusted up and down. Through the above operation, the up and down gap of the sash profile 100 can be adjusted, and the amount of sag of the sash can be improved. The pad 323 is arranged between the guide 322 and the adjusting member 324. On the one hand, since the adjusting member 324 and the guide 322 are both metal materials, the pad 323 can avoid wear caused by long-time use and can avoid causing the up and down adjusting function to be invalid. On the other hand, the pad 323 can increase the friction between the adjusting member 324 and the guide 322, and can avoid the adjusting member 324 from rotating during use and causing the up and down adjusting function to be invalid.

[0040] Next, the specific structure of the inward opening window hardware system of the utility model will be described in detail.

[0041] Please refer to Figures 6 to 9 , which is the lower hinge component 300 in the inward opening window hardware system of the utility model.

[0042] The first supporting arm 31 is provided with a guide arm 311 on both sides; the end of the first supporting arm 31 away from the positioning block 321 is provided with a Z-shaped connecting arm 312, the end of the connecting arm 312 away from the first supporting arm 31 is provided with a clamping block 313, the upper end of the clamping block 313 is provided with a clamping piece 314, and the clamping piece 314 is connected with the clamping block 313 through a screw. When the first supporting arm 31 is installed, the first supporting arm 31 is horizontally inserted into the C-shaped groove of the window sash profile 100, the guide arm 311 is matched with the inner wall of the C-shaped groove to play a guiding role. Since the Z-shaped connecting arm 312 is arranged, the clamping block 313 is located outside the window sash profile 100, when installed to the specified position, the locking screw is driven to move the clamping piece 314 towards the clamping block 313, and the clamping piece 314 and the clamping block 313 can clamp the window sash profile 100.

[0043] The end of the first fixed plate 33 towards the window frame profile 200 is provided with an L-shaped pressing block 331, the pressing block 331 includes a connecting part 3311 and a pressing part 3312 perpendicular to each other, and the pressing block 331 partially overlaps the second connecting rod 342 in the vertical direction, that is, the pressing part 3312 always covers part of the structure of the second connecting rod 342 in the open or closed state, and when the second connecting rod 342 is subjected to the gravity of the sash, the pressing part 3312 can press the second connecting rod 342 to improve the load-bearing capacity of the second connecting rod 342. Figure 3 As shown in the figure, the end of the first fixed plate 33 towards the window frame profile 200 is provided with a positioning plate 332 perpendicular thereto, the positioning plate 332 is matched with the window frame profile 200 to realize the mutual positioning of the first fixed plate 33 and the window frame profile 200, and achieve the auxiliary installation function; meanwhile, the two sides of the positioning plate 332 extend the clamping part 3321, after installation is completed, the clamping part 3321 is clamped into the window frame profile 200 to prevent the positioning plate 332 from being separated. The end of the first fixed plate 33 away from the positioning plate 332 is provided with a downward extending auxiliary plate 333, which is used to cooperate with the window frame profile 200 to achieve the auxiliary installation function.

[0044] The first connecting rod assembly 34 comprises a first connecting rod 341, a second connecting rod 342, a third connecting rod 343, an eccentric rivet 344, and a stepped rivet 345. A sliding groove 334 is formed in the first fixed plate 33, and a sliding module 335 is arranged in the sliding groove 334 and is in sliding connection with the first fixed plate 33. The sliding module 335 comprises upper and lower sliding blocks 3351 and 3352 which are in abutment with each other, the upper sliding block 3351 is arranged above the sliding groove 334, and the lower sliding block 3352 is arranged below the sliding groove 334, and the upper and lower sliding blocks 3351 and 3352 are locked in abutment by means of screws. The two ends of the first connecting rod 341 are hingedly connected with the sliding module 335 and the first supporting arm 31 respectively, the middle part of the first connecting rod 341 is hingedly connected with the middle part of the second connecting rod 342, the two ends of the second connecting rod 342 are hingedly connected with the first fixed plate 33 and the third connecting rod 343 respectively, and the two ends of the third connecting rod 343 are hingedly connected with the second connecting rod 342 and the first supporting arm 31 respectively. Through the above-mentioned hinged structures and connecting rod structures, the opening and closing of the first supporting arm 31 relative to the first fixed plate 33 can be realized, and then the opening and closing of the inward-opening window can be realized.

[0045] As shown in Figure 8 and Figure 9 , the first supporting arm 31 is provided with a first through hole 315 aligned with the connecting hole 3211, and the end of the first connecting rod 341 away from the first fixed plate 33 is provided with a second through hole 3411. The lower end of the guide 322 vertically penetrates the first through hole 315 and the second through hole 3411, and the outer wall of the guide 322 is provided with a limiting block 3221 extending outward in the radial direction. The bottom of the first supporting arm 31 abuts against the top of the limiting block 3221, and the top of the first connecting rod 341 abuts against the bottom of the limiting block 3221. When the adjusting member 324 is rotated to drive the first supporting arm 31 to move upward, the first connecting rod 341 provides support for the guide 322, thereby ensuring the stability of the upward movement of the first supporting arm 31 and the window sash profile 100. When the window sash profile 100 descends, the first supporting arm 31 abuts against the limiting block 3221, thereby limiting the first supporting arm 31 and preventing the further descent of the window sash profile 100, and ensuring the stability of the inward-opening window.

[0046] The stepped rivet 345 comprises a rivet cap 3451, and the third connecting rod 343 is hingedly connected with the first supporting arm 31 through the stepped rivet 345. As shown in Figure 8 , the first supporting arm 31 is provided with a sunken part 316, so that there is a clearance between the first supporting arm 31 and the rivet cap 3451, which provides a clearance in the vertical direction for the first supporting arm 31. The first supporting arm 31 can slide up and down between the rivet cap 3451 and the top surface of the third connecting rod 343, thereby ensuring the upward and downward adjustment function of the first supporting arm 31 and the window sash profile 100.

[0047] The eccentric rivet 344 is arranged at the connection of the second connecting rod 342 and the first fixed plate 33, and is used for realizing the hinging of the second connecting rod 342 and the first fixed plate 33. During adjustment, the eccentric rivet 344 is rotated by a hexagonal wrench, so as to adjust the movement track of the second connecting rod 342, specifically, the front-back and left-right adjustment in the horizontal plane, and then adjust the front-back and left-right gaps of the window sash profile 100 in the horizontal plane, and the sealing gap after the window sash profile 100 is closed. Meanwhile, a mark line towards the back is arranged at the top of the eccentric rivet 344, which is convenient for indicating the user to adjust.

[0048] Please refer to Figure 10 , the upper hinge component 400 in the inner opening window hardware system.

[0049] The upper hinge component 400 comprises a second supporting arm 41 connected to the window sash profile 100, a second fixed plate 42 connected to the window frame profile 200, and a second connecting rod assembly 43; the second connecting rod assembly 43 is connected to the second supporting arm 41 and the second fixed plate 42 respectively. The second supporting arm 41 protrudes the second fixed plate 42 under the support of the second connecting rod assembly 43, so as to realize the opening and closing of the window sash profile 100 relative to the window frame profile 200. The structure of the second fixed plate 42 is consistent with that of the first fixed plate 33; the structure of the second connecting rod assembly 43 is consistent with that of the first connecting rod assembly 34.

[0050] The difference between the second supporting arm 41 and the first supporting arm 31 is that the second supporting arm 41 is not provided with the height adjusting assembly 32. The upper end of the second supporting arm 41 is provided with a connecting plate 411 arranged perpendicularly thereto; during connection, the second supporting arm 41 is used for being connected to the bottom surface of the window sash profile 100, the connecting plate 411 is used for being connected to the side surface of the window sash profile 100, and locking is realized by locking screws.

[0051] Compared with the prior art, the inner opening window hardware system comprises an upper hinge component 400, a lower hinge component 300, a window sash profile 100 and a window frame profile 200; the opening and closing of the window sash profile 100 relative to the window frame profile 200 are realized by the upper hinge component 400 and the lower hinge component 300; the overall height of the upper hinge component 400 is less than that of the lower hinge component 300, which effectively reduces the amount of the window sash falling and dropping; the lower hinge component 300 comprises a positioning piece, a guide piece 322, a pad 323 and an adjusting piece 324; rotating the adjusting piece 324 can drive the positioning block 321 and the first supporting arm 31 to move upwards, and then the window sash moves upwards, which improves the amount of the window sash falling and dropping; the pad 323 can ensure the up-down adjusting function of the lower hinge component 300, and improve the product life and strength; the upper hinge component 400 and the lower hinge component 300 both adopt the eccentric rivet 344, which can adjust the movement track of the connecting rod, and then adjust the front-back and left-right gaps of the window sash, and adjust the sealing gap after the window sash is closed, so as to ensure the sealing property of the inner opening window.

[0052] The above merely expresses the preferred technical solutions of the present application, and the description is relatively specific and detailed, but it should not be understood as limiting the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, and the present application also intends to include these modifications and improvements.

Claims

1. An inwardly opening window hardware system comprising a sash profile and a frame profile, characterized in that, The inner opening window hardware system further comprises an upper hinge component and a lower hinge component; the upper hinge component is connected to an upper corner of the window sash profile and the window frame profile, and the lower hinge component is connected to a lower corner of the window sash profile and the window frame profile; the lower hinge component comprises a first supporting arm connected to the window sash profile, a first fixed plate connected to the window frame profile, and a first connecting rod assembly; the first connecting rod assembly is connected to the first supporting arm and the first fixed plate respectively; the first supporting arm is provided with a height adjusting assembly; the height adjusting assembly comprises a positioning block, a guide piece, a cushion block, and an adjusting piece; the positioning block is fixedly connected to the upper end of the first supporting arm, and one side of the positioning block is provided with a connecting block fixedly connected to the side surface of the window frame profile; the positioning block is provided with a connecting hole vertically arranged and penetrating through both ends, the connecting hole comprises a guide section and a threaded section arranged at the upper end of the guide section, the guide piece is arranged in the guide section, the adjusting piece is threadedly connected in the threaded section, and the cushion block is arranged between the guide piece and the adjusting piece; rotating the adjusting piece, the positioning block and the first supporting arm are vertically lifted along the guide piece synchronously to adjust the height of the window sash profile.

2. The inward-swinging casement hardware system according to claim 1, wherein, The first connecting rod assembly comprises a first connecting rod, a second connecting rod, and a third connecting rod; the first fixed plate is provided with a sliding groove, the sliding groove is provided with a sliding module, and the sliding module is slidably connected to the first fixed plate; both ends of the first connecting rod are hingedly connected to the sliding module and the first supporting arm respectively; the middle part of the first connecting rod is hingedly connected to the middle part of the second connecting rod; both ends of the second connecting rod are hingedly connected to the first fixed plate and the third connecting rod respectively; both ends of the third connecting rod are hingedly connected to the second connecting rod and the first supporting arm respectively.

3. The inward-swinging casement hardware system according to claim 2, wherein, The first supporting arm is provided with a first perforation aligned with the connecting hole, and one end of the first connecting rod away from the first fixed plate is provided with a second perforation; the lower end of the guide piece vertically penetrates through the first perforation and the second perforation; the outer wall of the guide piece is provided with a limiting block extending outward along the radial direction, the bottom of the first supporting arm abuts against the top of the limiting block, and the top of the first connecting rod abuts against the bottom of the limiting block.

4. The inward-swinging casement hardware system according to claim 2, wherein, Further comprising an eccentric rivet, the second connecting rod and the first fixed plate are hingedly connected through the eccentric rivet; rotating the eccentric rivet drives the second connecting rod and the window sash profile to move in the horizontal plane.

5. The inward-swinging casement hardware system according to claim 2, wherein, Further comprising a stepped rivet, the stepped rivet comprises a rivet cap; the third connecting rod and the first supporting arm are hingedly connected through the stepped rivet; the first supporting arm slides between the top surface of the rivet cap and the third connecting rod.

6. The inward-swinging casement hardware system according to claim 2, wherein, Both sides of the first supporting arm are provided with integrally formed guide arms, the guide arms cooperate with the window sash profile to play a guiding role; one end of the first supporting arm away from the positioning block is provided with a Z-shaped connecting arm, one end of the connecting arm away from the first supporting arm is provided with a clamping block, the upper end of the clamping block is provided with a clamping piece, and the clamping piece moves towards the clamping block to clamp the window sash profile.

7. The inward-swinging casement hardware system according to claim 2, wherein, The first fixed plate is provided with a positioning plate perpendicular to one end of the window frame profile, and the positioning plate cooperates with the window frame profile to realize mutual positioning of the first fixed plate and the window frame profile.

8. The inward-swinging casement hardware system according to claim 2, wherein, The first fixed plate is provided with an L-shaped pressing block towards one end of the window frame profile, and the pressing block partially overlaps the second connecting rod in the vertical direction.

9. The interior casement hardware system of claim 1, wherein, The upper hinge component comprises a second supporting arm connected to the window sash profile, a second fixed plate connected to the window frame profile, and a second connecting rod assembly; the second connecting rod assembly connects the second supporting arm and the second fixed plate respectively.

10. The inward-opening casement hardware system of claim 9, wherein, The upper end of the second supporting arm is provided with a connecting plate arranged perpendicularly thereto; the second supporting arm is connected to the bottom surface of the window sash profile, and the connecting plate is connected to the side surface of the window sash profile.

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